TWI794852B - Water separation device - Google Patents

Abstract

The present invention provides a water separation device that can suppress an increase in equipment cost and installation space, improve cooling efficiency of sample gas to improve water separation ability, and further easily collect water to efficiently guide sample gas.

A sample gas containing water is introduced into a first pipe 11 and flows downward. In the second pipe 12, the first pipe 11 is arranged inside, and the cooling gas is introduced and flows downward. In the outlet chamber 13, the sample gas is introduced from the first pipe 11, and the separated water drops from the lower end portion of the first pipe 11. The water collection chamber 14 communicates with the lower side of the outlet chamber 13 and collects the separated water. The sample gas guiding unit 15 communicates with the outlet chamber 13 and guides the sample gas flowing out to the outlet chamber 13.

Description

Moisture separator

The present invention relates to a moisture separation device for separating moisture from sample gas containing moisture.

When using an analyzer such as an infrared spectrophotometer to analyze the components of the collected sample gas, if the sample gas contains a large amount of water, the component analysis becomes difficult. Furthermore, when the infrared spectrophotometer is used to analyze the composition of the sample gas, the composition is analyzed by using the infrared spectrum obtained based on the difference of the infrared absorption peaks. On the other hand, water vapor, which is moisture, absorbs infrared rays. Therefore, when the sample gas is saturated with water vapor or the sample gas is high in humidity, if the sample gas contains a large amount of water, the infrared absorption peaks will overlap between the sample gas and the water to be analyzed. Therefore, if the sample gas contains a large amount of water, it is difficult to analyze the components by infrared spectroscopy.

As mentioned above, if the sample gas contains a large amount of water, it will be difficult to analyze the components by the analyzer. Therefore, an operation is performed in which a certain amount of water is separated from a sample gas containing a large amount of water to reduce the water content, and then the sample gas is supplied to an analyzer to analyze the components of the sample gas. As a method of separating moisture from sample gas containing moisture, there is a method of temporarily cooling sample gas containing moisture using a heat exchanger using a liquid refrigerant such as cooling water, and condensing part of the moisture contained in the sample gas to separate . However, in this case, a heat exchanger using a liquid refrigerant is required, which leads to an increase in equipment cost and installation space.

On the other hand, what is disclosed in Patent Document 1 is known as an air-cooled moisture separator that does not require a heat exchanger using a liquid refrigerant. The moisture separator disclosed in Patent Document 1 is configured to include: a drain separator body provided on a sample gas line for introducing sample gas into an analyzer; and an outer cylinder container covering the periphery of the drain separator body and For instrument air intake and exhaust. In addition, the moisture separator in Patent Document 1 is configured to cool the sample gas inside the drain separator body by blowing instrument air to the drain separator body in the outer cylinder container, thereby separating the moisture in the sample gas. Furthermore, the drainage separator body system is arranged on the sample gas pipeline, and the sample gas system is introduced into the drainage separator body at the upper end side of the drainage separator body, and is taken out from the drainage separator body at the upper end side of the drainage separator body. In addition, the water separated from the sample gas in the drain separator body is discharged from the drain outlet provided at the lower part of the drain separator body. [Prior Art Literature] [Patent Document]

Patent Document 1: Japanese Patent Laid-Open No. H10-197422

(Problem to be solved by the invention)

The moisture separator of Patent Document 1 does not require a heat exchanger using a liquid refrigerant, and thus can suppress an increase in equipment cost and installation space. However, according to the moisture separator of Patent Document 1, the sample gas is introduced into the drain separator body at the upper end side of the drain separator body, and taken out from the drain separator body. And, the sample gas flowing in the upper end region of the drain separator body is cooled by blowing the instrument air to the drain separator body in the outer cylinder container. Therefore, the heat exchange between the sample gas and the instrument air cannot be effectively performed through the drain separator body, and the cooling efficiency of the sample gas is reduced. In addition, since the cooling efficiency of the sample gas is low, it is difficult to sufficiently separate moisture from the sample gas, and the moisture separation capability also decreases.

Therefore, it is desired to realize a water separation device capable of improving the cooling efficiency of the sample gas and realizing the improvement of the water separation ability. In addition, in the water separation device, it is desired to improve the cooling efficiency of the sample gas and the water separation ability, and at the same time to easily recover the water separated from the sample gas, and to effectively separate the water separated sample. The gas is guided to a supply destination such as an analyzer.

In view of the above circumstances, an object of the present invention is to provide a moisture separator capable of suppressing an increase in equipment cost and installation space, improving the cooling efficiency of a sample gas, realizing an improvement in moisture separation capability, and enabling easy recovery. moisture and guides the sample gas efficiently. (technical means to solve the problem)

(1) In order to solve the above-mentioned problems, a moisture separator according to an aspect of the present invention includes: a first pipe into which a sample gas containing moisture is introduced, and the sample gas flows downward; a second pipe in which at least a part Arranged inside the first pipe or at least a part of the first pipe is arranged inside it, which is introduced with a cooling gas having a temperature lower than that of the sample gas, and the cooling gas flows upward or downward; the outlet chamber, wherein , the lower end of the first pipe is open, the sample gas is introduced from the first pipe, and the water separated from the sample gas drips from the lower end; the water recovery chamber communicates with the outlet chamber and is arranged The moisture separated from the sample gas is recovered under the outlet chamber; and a sample gas guide part communicates with the outlet chamber and guides the sample gas flowing out into the outlet chamber.

According to this configuration, the sample gas is cooled by exchanging heat between the sample gas flowing through the first pipe and the cooling gas flowing through the second pipe. And, when the sample gas is cooled, a part of the moisture contained in the sample gas is condensed according to the difference in the amount of saturated water vapor due to the temperature. In this way, moisture is condensed and separated from the sample gas. Therefore, according to the above-mentioned configuration, when separating water from the sample gas, a heat exchanger using a liquid refrigerant is not required, and thus an increase in equipment cost and installation space can be suppressed.

In addition, according to the above configuration, the sample gas flows downward in the first pipe, and the cooling gas flows upward or downward in the second pipe arranged inside the first pipe or inside the first pipe. , heat exchange takes place between the cooling gas and the sample gas, while the sample gas is cooled. Therefore, in the region where one of the first and second pipes is arranged inside the other and extends in the vertical direction, the sample gas and the cooling gas flow in the vertical direction over the entire length in the vertical direction. At the same time there is an efficient heat exchange between the sample gas and the cooling gas. Thereby, the cooling efficiency of the sample gas can be improved, and the water separation ability can be improved.

In addition, according to the above configuration, the lower end of the first pipe that cools the sample gas to separate the moisture and make it flow downward is connected to the outlet chamber opening, and the moisture separated from the sample gas drops to the outlet chamber, and the moisture is separated. The final sample gas also flows out to the outlet chamber. Therefore, the effectively cooled and separated sample gas and moisture can be directly and easily discharged from the first pipe to the outlet chamber below. In addition, the moisture is recovered to the moisture recovery chamber below the outlet chamber, and the sample gas from which the moisture has been separated is guided by the sample gas guide connected to the outlet chamber, and supplied to a supply destination such as an analyzer. Therefore, according to the above configuration, the moisture separated from the sample gas can be easily recovered, and the sample gas from which the moisture has been separated can be efficiently guided.

Therefore, according to the above configuration, it is possible to provide a water separator that can suppress the increase in equipment cost and installation space, and can improve the cooling efficiency of the sample gas to realize the improvement of the water separation ability, and can easily recover the water. Efficiently guide the sample gas.

(2) There is an aspect in which the first piping and the second piping are respectively arranged to extend linearly up and down, and the cooling gas system flows in a direction parallel to the flow direction of the sample gas in the first piping. Flow through the above-mentioned 2nd piping.

According to this configuration, each of the first and second pipes extends linearly up and down, and the cooling gas flows in a direction parallel to the flow direction of the sample gas. Therefore, heat exchange between the sample gas flowing through the first pipe and the cooling gas flowing through the second pipe can be performed more efficiently. Thereby, the cooling efficiency of the sample gas can be further improved, and the water separation ability can be further improved.

(3) There is an aspect in which the above-mentioned first piping system is arranged in a state inserted into the inside of the above-mentioned second piping.

According to this configuration, the sample gas flows inside the first pipe inserted into the second pipe, and the cooling gas flowing through the second pipe covers the entire periphery of the first pipe and flows outside the first pipe. Therefore, the cooling gas can more effectively remove heat from the sample gas through a wide area over the entire circumference of the first pipe through which the sample gas flows. Thereby, the cooling efficiency of the sample gas can be further improved, and the water separation ability can be further improved.

(4) There is an aspect in which the above-mentioned first piping and the above-mentioned second piping are provided as double pipes arranged concentrically so that the central axes coincide with each other.

According to this configuration, the flow distribution of the sample gas and the cooling gas becomes more uniform in the region in the circumferential direction around the central axis on the cross section perpendicular to the central axis of the first and second pipes. Therefore, the uneven cooling of the sample gas by the cooling gas can be further reduced, the cooling efficiency of the sample gas can be further improved, and the water separation ability can be further improved.

(5) There is an aspect in which the cooling gas system flows downward in the second piping in a direction parallel to and in the same direction as the flow direction of the sample gas.

According to this configuration, the cooling gas and the sample gas flow in parallel and in the same direction while exchanging heat. Therefore, the direction in which the cooling gas flows while removing heat from the sample gas is the same as the direction in which the sample gas flows while being cooled by the cooling gas. Thereby, the temperature difference between the cooling gas for heat exchange and the sample gas can be set larger, and the sample gas can be cooled more effectively.

(6) In the lower end portion of the first piping, the outlet-side opening opening to the outlet chamber is arranged below a position where the sample gas guide communicates with the outlet chamber.

According to this structure, the outlet side opening of the first pipe is arranged below the communication position of the sample gas guide part to the outlet chamber, so it is possible to more reliably prevent moisture dripping from the outlet side opening into the outlet chamber from entering the sample gas guide. department. Therefore, it is possible to more reliably prevent moisture from being mixed into the sample gas separated from the moisture and guided by the sample gas guide section.

(7) There is an aspect in which the outlet chamber has: an outlet chamber body part in which the first piping is opened and which communicates with the sample gas guide part; Extending downward and communicating with the opening of the above-mentioned water recovery chamber; the above-mentioned water recovery chamber is configured to store water, and the lower end of the above-mentioned communication pipe is configured to be in the above-mentioned water recovery chamber. The opening of the water is further below the surface of the water.

According to this configuration, the water dripped from the first pipe and discharged to the main body of the outlet chamber passes through the communication pipe, falls toward the water surface of the water stored in the water recovery chamber, and is recovered in the water recovery chamber. In addition, the sample gas flowing out from the first pipe to the outlet chamber body part flows toward the sample gas guide part, is guided by the sample gas guide part, and is supplied to a supply destination such as an analyzer. And, according to the above-mentioned configuration, the lower end of the communication pipe portion connecting the outlet chamber main body portion and the water recovery chamber opens at a position lower than the water surface of the water stored in the water recovery chamber, that is, opens into the water in the water recovery chamber. . Therefore, it is possible to reliably prevent the air outside the main body of the outlet chamber from flowing in through the communication pipe portion opened in the water recovery chamber. Thereby, it is possible to reliably prevent outside air from being mixed into the sample gas flowing from the outlet chamber main body to the sample gas guide and being guided by the sample gas guide. (compared to the effect of previous technology)

According to the present invention, it is possible to provide a moisture separator capable of suppressing an increase in equipment cost and installation space, improving the cooling efficiency of the sample gas, and improving the ability to separate moisture, thereby enabling easy recovery of moisture and efficient Guide the sample gas.

Hereinafter, modes for implementing the present invention will be described with reference to the drawings.

[Application form of water separator] The present invention can be widely used in various applications as a moisture separator for separating moisture from a sample gas. For example, the present invention is used as a method for separating moisture from the sample gas when sample gas is collected from the gas generated when various treatments are performed on the object to be processed, and when the moisture is separated, and the sample gas from which the moisture is separated is supplied to a supply destination such as an analyzer. The water separation device is applied. In the following description, as an embodiment, the form of the water separator used in the system for separating water from the sample gas collected from the exhaust gas generated by the heat treatment device and The sample gas is supplied to the analyzer.

Fig. 1 is a diagram schematically showing a system in which a sample gas is collected from exhaust gas generated by a heat treatment device 100, moisture is separated from the sample gas in a moisture separator 1, and after the moisture is separated, The sample gas is supplied to the analyzer 101.

The heat treatment apparatus 100 is configured as an apparatus that heats a metal to-be-processed object (not shown) with superheated steam to heat-treat the to-be-processed object. In addition, superheated steam is water vapor heated to a temperature higher than the boiling point, and is dry water vapor whose temperature is higher than the boiling point. The heat treatment apparatus 100 is configured to include a heat treatment chamber 102 extending in a cylindrical shape, and a heater 103 for heating the heat treatment chamber 102 from the outside. In the heat treatment apparatus 100, the object to be processed is transported from the inlet 102a to the outlet 102b in the heat treatment chamber 102, and simultaneously heated by superheated steam, thereby performing heat treatment on the object to be processed. In addition, the superheated steam is generated in the superheated steam generating device 104 including a boiler and a superheater. In the superheated steam generating device 104 , water is heated to evaporate, and the generated saturated steam is further heated to generate superheated steam, which is supplied to the heat treatment chamber 102 .

Examples of the heat treatment of the object to be treated using superheated steam in the heat treatment apparatus 100 include degreasing treatment and sintering treatment. When the degreasing treatment is performed in the heat treatment apparatus 100 , the processed object subjected to machining or the like in the treatment step before the treatment in the heat treatment apparatus 100 is carried into the heat treatment apparatus 100 . In addition, in the heat treatment apparatus 100, the oil and fat adhering to the object to be processed is heated and vaporized by the superheated steam, and removed from the object to be processed. In addition, when the sintering treatment is performed in the heat treatment apparatus 100, the object to be sintered is carried into the heat treatment apparatus 100 as a material to be sintered that is bonded with a binder mainly composed of oil and fat. form. In addition, in the heat treatment apparatus 100, the object to be processed is heated by superheated steam, the binder is vaporized and removed, and then further heated by superheated steam, whereby the object to be processed from which the binder mainly composed of oil and fat has been removed Carry out sintering.

When heat treatment is performed in the heat treatment apparatus 100 , the object to be processed is carried out from the outlet 102 b of the heat treatment chamber 102 . In addition, when the heat treatment is performed in the heat treatment apparatus 100 , exhaust gas is generated accompanying degreasing treatment in the heat treatment chamber 102 and the like. The exhaust gas system is constituted as a gas containing both superheated steam and fats and the like removed from the object to be treated by degreasing treatment or the like. The exhaust gas generated in the heat treatment apparatus 100 is exhausted to the exhaust system 105 from an exhaust port (not shown) provided near the outlet 102 b in the heat treatment chamber 102 . Furthermore, for example, an ejector (not shown) is provided in the exhaust system 105 , and the ejector sucks and discharges the exhaust gas by using a high-pressure fluid such as compressed air to generate a negative pressure. By this, exhaust gas is sucked from an exhaust port provided in the heat treatment chamber 102 near the outlet 102 b and discharged to the exhaust system 105 .

The exhaust system 105 is connected to a combustion device 106 . The exhaust gas discharged from the heat treatment chamber 102 to the exhaust system 105 flows in the exhaust system 105 and is introduced into the combustion device 106 . The combustion device 106 includes: a combustion chamber (not shown) into which exhaust gas is introduced; an oxygen supply unit (not shown) that supplies oxygen into the combustion chamber by supplying external air into the combustion chamber; and a heater. (illustration omitted), which is installed in the combustion chamber and heats the exhaust gas to burn it. Furthermore, the combustion device 106 is configured to heat the exhaust gas in a state where the introduced exhaust gas is mixed with air, and burn the exhaust gas. The exhaust gas introduced into the combustion chamber is composed of superheated steam and fat, and the fat is burned to carbon dioxide by combustion of the exhaust gas. The exhaust gas system constituted as a gas containing superheated steam and oil is combusted in the combustion device 106, whereby the exhaust gas system is constituted as a gas containing superheated steam and carbon dioxide.

The exhaust gas combusted in the combustion device 106 is exhausted to the exhaust system 107a. The downstream end of the discharge system 107a is opened to the outside, and the exhaust gas system discharged from the combustion device 106 to the discharge system 107a is discharged to the outside through the discharge system 107a. In addition, the sampling system 107b is branched from the exhaust system 107a, and part of the exhaust gas discharged from the combustion device 106 to the exhaust system 107a flows into the sampling system 107b. Thereby, a part of the exhaust gas generated in the heat treatment device 100 and discharged after combustion in the combustion device 106 is collected as a sample gas, and flows into the sampling system 107b.

The exhaust gas system discharged from the combustion device 106 is constituted as a gas containing superheated steam and carbon dioxide. And, after being discharged to the exhaust system 107a, the sample gas collected as part of the exhaust gas flows through the sampling system 107b constituted in the form of piping, and is separated by the outside air of the sampling system 107b through the sampling system 107b. The tube walls are cooled. The sample gas is cooled in the flow of the sampling system 107b, and the temperature is lowered to a temperature close to the temperature of the outside air, that is, room temperature (eg, 25°C), for example, the temperature is lowered to about 30°C. When the temperature is lowered, the sample gas becomes a state in which it is constituted as a gas containing water vapor and carbon dioxide. Furthermore, the water vapor in the sample gas is contained in the sample gas in the state of saturated water vapor. And, the sample gas flowing in the sampling system 107 b is introduced into the water separator 1 .

In the moisture separator 1 , the introduced sample gas is cooled to a temperature sufficiently lower than room temperature, for example, to about 10°C. In the water separator 1, the sample gas is cooled from the temperature (for example, 30°C) when it is introduced into the water separator 1 to a temperature sufficiently lower than room temperature (for example, 10°C), whereby the The condensed moisture is separated from the sample gas due to the difference in the amount of saturated water vapor. As a result, the moisture is sufficiently separated from the sample gas in the moisture separator 1 . The sample gas from which moisture has been sufficiently separated in the moisture separator 1 is led to the analyzer supply system 108 and flows through the analyzer supply system 108 .

The sample gas flowing through the analyzer supply system 108 is heated through the pipe wall of the analyzer supply system 108 by the outside air of the analyzer supply system 108 in the flow of the analyzer supply system 108 constituted as a pipe. The sample gas is heated while flowing through the analyzer supply system 108 , thereby raising the temperature to a temperature close to room temperature (for example, 25° C.) which is the outside air temperature, for example, the temperature rises to about 20° C. As the temperature rises, the humidity of the sample gas decreases. Then, the sample gas which is a gas containing carbon dioxide with reduced humidity is supplied to the analyzer 101 from the analyzer supply system 108 . The analyzer 101 is configured as an infrared spectrophotometer, for example. When the sample gas is supplied to the analyzer 101 , the component analysis of the sample gas is performed at the analyzer 101 . By analyzing the components of the sample gas with the analyzer 101, for example, the content of carbon dioxide in the sample gas can be obtained.

As described above, the moisture separation device is applied to, for example, a system that separates moisture from a sample gas collected from exhaust gas generated in the heat treatment device 100 and supplies the sample gas to the analyzer 101 . Hereinafter, the detailed embodiments of the water separator will be described by taking the first to seventh embodiments as examples.

[First Embodiment] FIG. 2 is a diagram showing the water separator 1 and the air cooler 109 for supplying cooling gas to the water separator 1 according to the first embodiment of the present invention. Fig. 3 is a diagram showing a water separator 1 according to a first embodiment of the present invention. In FIG. 2 and FIG. 3 , the moisture separator 1 is shown in cross-sectional view. Furthermore, in FIG. 1 , an example is shown in which the water separator 1 of the first embodiment is applied to a system that separates water from a sample gas collected from exhaust gas generated in a heat treatment device 100, and separates the sample gas. The gas is supplied to the analyzer 101.

The moisture separator 1 shown in FIGS. 1 to 3 cools the sample gas introduced from the sampling system 107 a, separates moisture contained in the sample gas, and supplies the sample gas to the analyzer supply system 108 . In addition, the moisture separator 1 is configured to be introduced with cooling gas for cooling the sample gas. In this embodiment, the moisture separator 1 is connected to the air cooler 109 , and the cooling gas for cooling the sample gas is introduced from the air cooler 109 .

Furthermore, the air cooler 109 is configured as a device that generates air whose temperature is sufficiently lower than room temperature (for example, 25°) as cooling gas by supplying compressed air. Compressed air is supplied to the air cooler 109 via a compressed air supply system 111 from a compressed air supply source 110 including a compressor and a compressed air storage tank. When high-pressure compressed air is supplied from the compressed air supply system 111 to the air cooler 109 , the high-pressure air is supplied to the vortex generators in the air cooler 109 . And, the high-pressure air system is discharged in the tangential direction of the cylindrical inner peripheral surface in the cylindrical air cooler 109 by the vortex generator, and forms a vortex that rotates at a high speed while expanding, and simultaneously cools the air along the air. The length direction of the device 109 flows. And the air whose air volume is adjusted by the adjustment valve provided in the one end part 109a of the air cooler 109 is discharged|emitted in the state of hot air. On the other hand, the remaining air not discharged from the one end 109a is in the inner cavity formed by the centrifugal force of the vortex in the tube of the air cooler 109, expands while rotating in the same direction as the outer vortex, and is cooled by the air. The other end 109b side of the device 109 flows. At this time, the air moving to the other end portion 109b side inside the vortex acts on the outer vortex due to braking action due to deceleration while expanding, thereby reducing the temperature to below room temperature and above. A given temperature of 0°C. Then, the air whose temperature has been lowered to a predetermined temperature lower than the room temperature flows toward the other end 109b as cold air. The other end 109b of the air cooler 109 is connected to the water separator 1 through the connecting pipe 112, and the low-temperature air discharged from the end 109b of the air cooler 109 as cold air is introduced into the water separator as cooling gas. 1. Furthermore, as described above, the temperature of the cooling gas generated in the air cooler 109 and introduced into the moisture separator 1 is preferably set to a temperature lower than room temperature and higher than 0°C. Furthermore, the temperature of the cooling gas introduced into the water separator 1 from the air cooler 109 is preferably set to a temperature higher than 0°C and sufficiently lower than room temperature, more specifically, preferably set to a temperature higher than 0°C. temperature and is closer to 0°C than room temperature.

As shown in FIGS. 1 to 3 , the water separator 1 includes a first pipe 11 , a second pipe 12 , an outlet chamber 13 , a water recovery chamber 14 , and a sample gas guide 15 .

The first pipe 11 is configured as a pipe into which a sample gas containing moisture is introduced and the sample gas flows downward. The first pipe 11 is provided as a round tube-shaped pipe that has a circular cross-section, is elongated, and extends linearly. The first piping 11 is provided as a round pipe made of metal having excellent thermal conductivity, for example, a round pipe made of stainless steel. The first pipe 11 is supported with respect to the second pipe 12 described later. Moreover, the 1st piping 11 is supported with respect to the 2nd piping 12 in the state which extended the longitudinal direction along the up-down direction, and in this embodiment, it is provided so that it may extend linearly up and down.

The upper end of the first pipe 11 is connected to the downstream end of the sampling system 107b via a connector 107c. The sample gas containing moisture is introduced from the sampling system 107b to the upper end of the first pipe 11 in a state saturated with water vapor. Furthermore, in FIG. 3 , the flow of the sample gas is schematically indicated by arrows of thin dotted lines. The sample gas introduced from above to the upper end of the first pipe 11 flows downward inside the first pipe 11 along the vertical direction in which the first pipe 11 extends. The first pipe 11 penetrates inside a second pipe 12 described later, and the lower end of the first pipe 11 opens into an outlet chamber 13 described later.

The second pipe 12 is configured as a pipe in which at least a part of the first pipe 11 is arranged inside, and a cooling gas having a temperature lower than that of the sample gas is introduced and the cooling gas flows downward. The second pipe 12 is provided as a cylindrical pipe that has a circular cross section and extends linearly. The second piping 12 is provided as a round pipe made of metal having excellent thermal conductivity, for example, a round pipe made of stainless steel. The second pipe 12 is fixedly supported by, for example, a support frame 16 fixed to the water recovery chamber 14 . Moreover, the 2nd piping 12 is supported with respect to the support frame 16 in the state which extended the longitudinal direction along the up-down direction, and in this embodiment, it is provided so that it may extend linearly up and down.

The second piping 12 is provided with: a circular pipe-shaped pipe main body 12a whose cross-section is circular and linearly extending; an upper cover 12b which closes the upper end of the pipe main body 12a; and a lower cover 12c which closes the pipe The lower end portion of the main body portion 12a. The upper cover portion 12b is provided as a disc-shaped member having a through hole formed in the center, and is fixed to the upper end of the pipe main body 12a in an airtight state. In addition, the first pipe 11 is inserted into the through hole of the upper cover portion 12b. The first pipe 11 is inserted into the through hole of the upper cover part 12b in a state of being airtightly sealed to the edge of the through hole of the upper cover part 12b via a sealing member. The lower cover portion 12c is provided as a disc-shaped member having a through hole formed in the center, and is fixed to the lower end portion of the pipe main body portion 12a in an airtight state. In addition, the first pipe 11 penetrating through the pipe main body 12 a is inserted into the through hole of the lower cover 12 c. The first pipe 11 is inserted into the through-hole of the lower cover 12c in a state of being airtightly sealed to the edge of the through-hole of the lower cover 12c via a sealing member.

The 1st piping 11 is attached to the 2nd piping 12 in the state which penetrated the upper cover part 12b, the insertion pipe main body part 12a, and further penetrated the lower cover part 12c. Therefore, the first pipe 11 is arranged in a state inserted into the second pipe 12 . Moreover, the 1st piping 11 penetrates the through-hole provided in the center of the upper cover part 12b, and penetrates the through-hole provided in the center of the lower cover part 12c simultaneously. And the 1st piping 11 extends parallel to the pipe main body part 12a, and is inserted through the pipe main body part 12a along the center axis|shaft. Therefore, the first pipe 11 and the second pipe 12 are provided as double pipes arranged concentrically so that their central axes coincide.

In addition, the water separator 1 is provided with a cooling gas introduction pipe 17 a and a cooling gas discharge pipe 17 b connected to the pipe main body 12 a of the second pipe 12 .

The cooling gas introduction pipe 17 a is provided as a short circular pipe, and is configured to introduce the cooling gas supplied from the air cooler 109 into the second pipe 12 . More specifically, in the cooling gas introduction pipe 17a, one end in the pipe length direction is connected to the connecting pipe 112 connected to the end 109b of the air cooler 109, and the other end in the pipe length direction is on the upper end side of the pipe main body 12a. Connected to the pipe main body 12a. In addition, the other end portion of the cooling gas introduction pipe 17a is airtightly penetrated through a through hole provided on the upper end side of the pipe main body 12a and penetrates the pipe wall of the pipe main body 12a, and opens inside the pipe main body 12a. Thereby, the end part 109b of the air cooler 109 communicates with the region on the upper end side in the second pipe 12 via the cooling gas introduction pipe 17a.

The cooling gas discharge pipe 17b is provided as a short circular pipe, and is configured to discharge the cooling gas introduced into the second pipe 12 and flowing through the second pipe 12 from the second pipe 12 . More specifically, in the cooling gas discharge pipe 17b, one end portion in the pipe length direction is connected to the pipe body portion 12a at the lower end side of the pipe body portion 12a, and a portion on the other end side in the pipe length direction is directed to the outside of the pipe body portion 12a. protrude. In addition, one end of the cooling gas discharge pipe 17b is airtightly penetrated through a through hole provided on the lower end side of the pipe main body 12a and penetrates the pipe wall of the pipe main body 12a, and opens inside the pipe main body 12a. On the other hand, the other end portion of the cooling gas discharge pipe 17b protruding outward from the pipe main body portion 12a is opened to the outside. Thereby, the region on the lower end side in the second pipe 12 communicates with the outside of the second pipe 12 via the cooling gas discharge pipe 17b.

As described above, the cooling gas introduction pipe 17 a is connected to the upper end side of the second pipe 12 . Therefore, the air cooled by the air cooler 109 and discharged from the end portion 109b is introduced as cooling gas into the region on the upper end side in the second pipe 12 via the cooling gas introduction pipe 17a. In addition, the cooling air introduced into the second pipe 12 flows downward in the second pipe 12 . In addition, in FIG. 3, the flow of cooling gas is schematically shown by the arrow of thin solid line.

Moreover, both the 1st piping 11 and the 2nd piping 12 extend linearly up and down, and are provided as double pipes whose central axes coincide. In addition, the sample gas flows downward in the first pipe 11 arranged concentrically inside the second pipe 12, and the cooling gas flows downward in a region inside the second pipe 12 and outside the first pipe 11. . Therefore, the cooling gas flows in the second pipe 12 in a direction parallel to the flow direction of the sample gas in the first pipe 11 . Furthermore, the cooling gas system flows downward in the second pipe 12 in the same direction as the flow direction of the sample gas in parallel. The sample gas flows downward inside the first pipe 11, and the cooling gas flows downward inside the second pipe 12 and outside the first pipe 11, thereby passing through the entire circumference of the pipe wall of the first pipe 11, Heat exchange takes place between the sample gas and the cooling gas. As a result, the sample gas is cooled in the flow of the first pipe 11, and the amount of saturated water vapor is condensed according to the difference in the amount of saturated water vapor due to temperature as the temperature in the sample gas decreases. Moisture is separated from the sample gas in the first pipe 11 . The moisture separated from the sample gas in the first pipe 11 falls in the first pipe 11 and drips into the outlet chamber 13 from the lower end of the first pipe 11 opening in the outlet chamber 13 described later. In addition, in FIG. 3 , the situation where the water separated from the sample gas falls is schematically shown by the arrow of the thick dotted line.

In addition, a cooling gas discharge pipe 17 b is connected to the downstream end side of the second pipe 12 . Therefore, the cooling gas that flows downward in the second pipe 12 and exchanges heat with the sample gas through the pipe wall of the first pipe 11 flows toward the cooling gas discharge pipe 17b, and is discharged through the cooling gas discharge pipe 17b. to the outside of the second piping 12 .

The outlet chamber 13 is arranged below the second pipe 12 and is provided as a chamber into which the sample gas flowing out from the first pipe 11 is introduced. In the present embodiment, the outlet chamber 13 is arranged adjacent to the second pipe 12 in the vertical direction. The outlet chamber 13 is configured to have an outlet chamber main body portion 18 and a communication pipe portion 19 .

The outlet chamber main body 18 of the outlet chamber 13 is configured such that the first pipe 11 is opened therein and communicates with a sample gas guide 15 described later, and is provided for introducing a sample gas and sending the introduced sample gas to Chamber of the sample gas guide 15. Specifically, the outlet chamber main body 18 has, for example, a cylindrical side wall 18 a and a disk-shaped bottom wall 18 b. And, the outlet chamber main body portion 18 is constituted as a chamber: the upper end side of the side wall 18a is airtightly closed by the lower cover portion 12c of the second pipe 12, and the lower end side of the side wall 18a is airtightly closed by the bottom wall portion 18b. The room thus divided.

Moreover, in the outlet chamber main body part 18, the 1st piping 11 which penetrates the lower cover part 12c of the 2nd piping 12 extends downward from the lower cover part 12c. The first pipe 11 extends from the lower cover portion 12 c to a halfway position in the vertical direction of the outlet chamber body portion 18 in the outlet chamber body portion 18 . In addition, in this embodiment, the 1st piping 11 extends to the position of the substantially center part in the height direction in the outlet chamber main body part 18. As shown in FIG. In addition, the lower end portion of the first pipe 11 extending downward in the outlet chamber main body portion 18 is opened in the outlet chamber main body portion 18 . In addition, in the outlet chamber main body portion 18, a sample gas communication portion 15, which will be described later, communicates with the side wall 18a.

As described above, since the first pipe 11 opens in the outlet chamber main body 18 , the sample gas flowing out from the first pipe 11 is introduced into the outlet chamber 13 . Furthermore, since the lower end portion of the first pipe 11 is opened in the outlet chamber main body 18, the moisture separated from the sample gas in the first pipe 11 is in the state of water droplets, and falls downward along the first pipe 11, from which The lower end of the first pipe 11 drips into the outlet chamber 13 . In this way, the outlet chamber 13 is configured such that the sample gas is introduced from the first pipe 11 and the water separated from the sample gas drips from the lower end of the first pipe 11 .

The communication pipe portion 19 of the outlet chamber 13 is configured as a pipe portion extending downward from the lower end of the outlet chamber body portion 18 and opening to communicate with the water recovery chamber 14 described later. The communication pipe part 19 is formed in the shape of a circular tube elongated in the vertical direction, the upper end part is connected to the bottom wall part 18b of the outlet chamber main body part 18, and the lower end part is opened in the water recovery chamber 14 described later. A through hole is provided at the center of the disk-shaped bottom wall portion 18b, and the upper end portion of the communication pipe portion 19 is fitted into and fixed to the through hole in an airtight state. The upper end of the communication pipe part 19 is open, and the communication pipe part 19 communicates with the inside of the outlet chamber main body part 18 .

The communication pipe portion 19 is connected to the lower end of the outlet chamber main body portion 18 in a state of communicating with the inside of the outlet chamber main body portion 18 . Therefore, the water separated from the sample gas and dripped from the lower end of the first pipe 11 in the outlet chamber main body 18 falls in the outlet chamber main body 18 and flows from the lower end of the outlet chamber main body 18 to the communication pipe 19. move. In addition, the communication pipe part 19 is opened in the water recovery chamber 14 . Therefore, the water that has moved to the communication pipe portion 19 falls in the communication pipe portion 19 and is collected into the water recovery chamber 14 . In addition, in this embodiment, the upper end part of the communication pipe part 19 is arrange|positioned vertically below the lower end part of the 1st piping 11. As shown in FIG. Therefore, the water dripped from the first pipe 11 in the outlet chamber main body 18 falls downward and directly falls to the upper end of the communication pipe 19 , passes through the communication pipe 19 and is recovered to the water recovery chamber 14 .

The moisture recovery chamber 14 is configured as a chamber communicated with the outlet chamber 13 and disposed below the outlet chamber 13, and recovers moisture separated from the sample gas. The water recovery chamber 14 is a container provided with an open top, and is configured to store water inside. In addition, FIG. 2 and FIG. 3 are sectional views showing the state in which the water Wa is stored in the water recovery chamber 14 . Moisture recovery chamber 14 is formed, for example, as a rectangular parallelepiped or cylindrical container with an open upper surface, arranged vertically in series with outlet chamber 13 , and arranged below outlet chamber 13 . The upper surface opened in the moisture recovery chamber 14 is arranged at substantially the same height as the lower end of the outlet chamber main body portion 18 of the outlet chamber 13 , for example.

In addition, a drain port 14 a is provided in the water recovery chamber 14 . The drain port 14 a is formed as a through hole on the upper end side of the side wall of the water recovery chamber 14 . When water is supplied and stored in the water recovery chamber 14, the water surface of the water Wa stored in the water recovery chamber 14 rises to the level of the water outlet 14a. And, when the water supplied to the water recovery chamber 14 exceeds the height position of the drain port 14a, the water is discharged to the outside of the water recovery chamber 14 from the water drain port 14a. In addition, in this embodiment, the drain pipe 14b is connected to the water recovery chamber 14 at the position of the drain port 14a, and the water discharged from the drain port 14a is discharged to the drain pipe 14b.

In addition, inside the moisture recovery chamber 14 , the communication pipe portion 19 extending from the lower end of the outlet chamber body portion 18 extends downward from the upper surface side to the bottom surface side of the moisture recovery chamber 14 . In addition, the communication pipe part 19 extends to a position lower than the height position at which the drain port 14a opens in the water recovery chamber 14 . Therefore, the lower end of the communication pipe portion 19 opens in the water recovery chamber 14 at a position lower than the opening of the drain port 14a. Thereby, the communication pipe part 19 is comprised so that the lower end may open in the water recovery chamber 14 below the water surface of the water Wa stored in the water recovery chamber 14. As shown in FIG. The water separated from the sample gas and dripped from the first pipe 11 passes through the outlet chamber main body 18 and falls in the communication pipe 19 , reaches the water surface of the water Wa in the water recovery chamber 14 , and is recovered in the water recovery chamber 14 .

The sample gas guide 15 is a pipe provided to connect to the outlet chamber 13 , and is configured to communicate with the outlet chamber 13 and guide the sample gas flowing out into the outlet chamber 13 . More specifically, the sample gas guide 15 is formed as a circular tube, and one end in the length direction of the tube is connected to the side wall 18a of the outlet chamber body 18 of the outlet chamber 13 on the upper half side of the outlet chamber body 18 . In addition, the other end in the tube length direction of the sample gas guide 15 is connected to an analyzer supply system 108 connected to the analyzer 101 .

In addition, one end of the sample gas guide 15 is airtightly penetrated through a through hole provided on the upper half side of the outlet chamber main body 18 and through the side wall 18 a , and opens inside the outlet chamber main body 18 . Thereby, the upper half area of the outlet chamber main body 18 communicates with the analyzer supply system 108 via the sample gas guide 15 . In addition, in the outlet chamber main body 18 , the sample gas guide 15 communicates with the inside of the outlet chamber main body 18 at a position higher than the middle position in the height direction of the outlet chamber main body 18 . Furthermore, the first pipe 11 extending downward from the upper end side of the outlet chamber main body 18 in the outlet chamber main body 18 extends to a substantially middle position in the height direction of the outlet chamber main body 18 . Therefore, the outlet-side opening 11 a that opens to the outlet chamber 13 at the lower end of the first pipe 11 is disposed below the position where the sample gas guide 15 communicates with the outlet chamber 13 . Therefore, the sample gas flowing out of the outlet opening 11 a to the outlet chamber 13 flows toward the sample gas guide 15 , while water dripping from the outlet opening 11 a is prevented from flowing toward the sample gas guide 15 .

Next, the water-separating operation of the above-mentioned water-separating device 1 will be described. The target sample gas for moisture separation is introduced into the moisture separator 1 from the sampling system 107b. The sample gas is sampled to the sampling system 107b as part of the exhaust gas that is generated in the heat treatment device 100, burned in the combustion device 106 and discharged to the exhaust system 107a. The sample gas is sampled to the sampling system 107b in a state where the temperature is relatively high compared with room temperature, but by flowing in the sampling system 107b, the temperature is lowered to a temperature close to the temperature of the outside air, that is, room temperature (for example, 25°C). , for example, the temperature is lowered to around 30°C. In addition, the sample gas is introduced into the first pipe 11 of the moisture separator 1 in a state where the temperature is lowered to a temperature close to room temperature.

In addition, while the sample gas is introduced from the sampling system 107b to the water separator 1 , cooling gas is introduced from the air cooler 109 to the water separator 1 . The cooling gas is generated from compressed air in the air cooler 109 as air cooled to a temperature sufficiently below room temperature, for example, air cooled to a range above 0° C. and sufficiently below room temperature. The cooling gas is introduced from the air cooler 109 to the second pipe 12 through the cooling gas introduction pipe 17a.

The sample gas and cooling gas system are continuously introduced into the moisture separator 1 . The sample gas is continuously introduced into the first pipe 11, and the cooling gas is continuously introduced into the second pipe 12 through the cooling gas introduction pipe 17a. When the sample gas is introduced into the first pipe 11 as indicated by the thin dotted arrow in FIG. 3 , it flows from above to below in the first pipe 11 extending vertically. Furthermore, when the cooling gas system is introduced into the second pipe 12 , it flows from above to below in the second pipe 12 extending vertically as indicated by the thin solid arrow in FIG. 3 . At this time, the sample gas flows inside the first pipe 11 arranged inside the second pipe 12 , and at the same time, the cooling gas flows inside the second pipe 12 and outside the first pipe 11 . Furthermore, the sample gas and the cooling gas flow in the same direction, and at the same time, the sample gas is cooled by heat exchange between the sample gas and the cooling gas through the pipe wall of the first pipe 11 . The sample gas flows along the first pipe 11 and is cooled, whereby a part of the moisture contained in the sample gas is condensed and separated according to the difference in the amount of saturated water vapor due to the temperature in the sample gas.

Fig. 4 is a graph showing the relationship between the amount of saturated water vapor and the temperature, and is a graph for explaining the moisture separated from the sample gas. A case where the sample gas is introduced into the first pipe 11 in a state of, for example, 30° C. will be described as an example. When the water vapor in the sample gas is saturated (that is, when the humidity is 100%), the amount of water vapor contained in the sample gas is about 30.4 g/m ³ as shown at point X1 in FIG. 4 . Furthermore, while the sample gas flows in the first pipe 11, heat exchange is performed between the cooling gas introduced into the second pipe 12 at a temperature higher than 0° C. and sufficiently lower than room temperature and flowing in the second pipe 12, And was cooled. The sample gas is cooled all the way through the portion of the first pipe 11 disposed inside the second pipe 12 to a temperature lower than room temperature. If the sample gas is cooled to, for example, 10°C, then as shown by point X2 in Fig. 4, the saturated water vapor amount is about 9.41 g/m ³ . And, by cooling the sample gas, the moisture condensed due to the difference in the amount of saturated water vapor caused by temperature becomes liquid water, which is separated from the sample gas. If the sample gas is cooled from 30°C to 10°C, it corresponds to the difference between the saturated water vapor amount (30.4g/m ³ ) at 30°C and the saturated water vapor amount (9.41g/m ³ ) at 10°C The moisture is condensed and separated from the sample gas.

The cooling gas that flows through the second pipe 12 to cool the sample gas is discharged to the outside of the second pipe 12 through the cooling gas discharge pipe 17 b. On the other hand, when the sample gas flows through the first pipe 11 to be cooled and the water is separated, it flows out from the outlet side opening 11 a at the lower end of the first pipe 11 to the outlet chamber 13 . The sample gas that flows out of the outlet chamber 13 after the water is separated flows toward the sample gas guide 15 , and flows from the sample gas guide 15 toward the analyzer supply system 108 . In addition, the moisture separated from the sample gas in the first pipe 11 drops from the outlet opening 11 a into the outlet chamber 13 , and then falls into the moisture recovery chamber 14 to be recovered by the moisture recovery chamber 14 .

The sample gas flowing from the sample gas guide 15 to the analyzer supply system 108 is heated by the outside air while flowing in the analyzer supply system 108, and the temperature rises to a temperature close to room temperature (for example, 25° C.), for example , the temperature rises to around 20°C. When the sample gas flows through the analyzer supply system 108 and its temperature rises, the amount of saturated water vapor increases with the rise in temperature, so the humidity decreases. Then, the sample gas is supplied to the analyzer 101 in a state where the humidity is lowered, and analyzed.

Furthermore, when the temperature of the sample gas flowing into the analyzer supply system 108 rises to, for example, 20° C., the amount of saturated water vapor is about 17.3 g/m ³ as shown at point X3 in FIG. 4 . Therefore, when the sample gas that flows through the first pipe 11 and is cooled to 10°C and the moisture is separated flows through the analyzer supply system 108 and is heated to 20°C, the sample gas becomes 17.3 g/m ³ The saturated water vapor amount contains 9.41g/m ³ of moisture. Therefore, the humidity of the sample gas heated to 20°C is about 54%. In this case, before being introduced into the moisture separator 1, the sample gas containing moisture is cooled in the moisture separator 1 in the state of saturated water vapor with a temperature higher than room temperature and a humidity of 100%, and then the moisture is separated. , is supplied to the analyzer 101 in a state where the temperature is close to room temperature and the humidity is greatly reduced. In addition, in the analyzer 101, the component analysis is performed on the sample gas in a state where the humidity is greatly reduced and the water content is greatly reduced.

As described above, according to the water separator 1 of the present embodiment, the sample gas is cooled by exchanging heat between the sample gas flowing through the first pipe 11 and the cooling gas flowing through the second pipe 12 . And, by cooling the sample gas, part of the moisture contained in the sample gas is condensed according to the difference in the amount of saturated water vapor due to the temperature. As a result, the moisture is condensed and separated from the sample gas. Thus, according to the above-mentioned configuration, when separating water from the sample gas, a heat exchanger using a liquid refrigerant is not required, and thus an increase in equipment cost and installation space can be suppressed.

In addition, according to the water separator 1 of the present embodiment, the sample gas flows downward in the first pipe 11, and the cooling gas flows downward in the second pipe 12 in which the first pipe 11 is disposed. Heat is exchanged between the gas and the sample gas, while the sample gas is cooled. Therefore, the sample gas and the cooling gas flow in the vertical direction throughout the entire length of the vertical direction in the region where the first pipe 11 is arranged inside the second pipe 12 and extends in the vertical direction, and at the same time, there is a gap between the sample gas and the cooling gas. efficient heat exchange. Thereby, the cooling efficiency of the sample gas can be improved, and the water separation ability can be improved.

Furthermore, according to the water separator 1 of this embodiment, the lower end of the first pipe 11 that cools the sample gas to separate the water and allows it to flow downward is opened in the outlet chamber 13, and the water separated from the sample gas drips. to the outlet chamber 13, and the sample gas after the moisture is separated also flows out to the outlet chamber 13. Therefore, the effectively cooled and separated sample gas and moisture can be directly and easily discharged from the first pipe 11 to the outlet chamber 13 below. The moisture is recovered to the moisture recovery chamber 14 below the outlet chamber 13, and the sample gas from which the moisture has been separated is guided from the sample gas guide 15 communicating with the outlet chamber 13, and supplied to the analyzer 101 as a supply destination. Therefore, according to the moisture separator 1 , the moisture separated from the sample gas can be easily recovered, and the moisture-separated sample gas can be efficiently guided.

Therefore, according to the present embodiment, it is possible to provide a moisture separator 1 that can suppress an increase in equipment cost and installation space, improve the cooling efficiency of the sample gas, improve the moisture separation capability, and can easily recover moisture. And effectively guide the sample gas.

In addition, according to the moisture separator 1 , the first pipe 11 and the second pipe 12 each extend linearly up and down, and the cooling gas flows in a direction parallel to the flow direction of the sample gas. Therefore, heat exchange between the sample gas flowing through the first pipe 11 and the cooling gas flowing through the second pipe 12 can be performed more efficiently. Thereby, the cooling efficiency of the sample gas can be further improved, and the water separation ability can be further improved.

In addition, according to the water separator 1, the sample gas flows inside the first pipe 11 inserted inside the second pipe 12, and the cooling gas flowing through the second pipe 12 covers the entire circumference of the first pipe 11, and at the same time It flows outside the first pipe 11 . Therefore, the cooling gas can more effectively remove heat from the sample gas through a wide area over the entire circumference of the first pipe 11 through which the sample gas flows. Thereby, the cooling efficiency of the sample gas can be further improved, and the water separation ability can be further improved.

In addition, the water separator 1 is provided as a double pipe in which the first pipe 11 and the second pipe 12 are arranged concentrically so that their central axes coincide. Therefore, according to the water separator 1, the flow rate distribution of the sample gas and the cooling gas becomes better in the region in the circumferential direction around the central axis in the section perpendicular to the central axis of the first and second pipes (11, 12). uniform. Thereby, the uneven cooling of the sample gas by the cooling gas can be further reduced, the cooling efficiency of the sample gas can be further improved, and the water separation ability can be further improved.

In addition, according to the moisture separator 1 , the cooling gas and the sample gas flow in parallel and in the same direction while exchanging heat. Therefore, the direction in which the cooling gas flows while removing heat from the sample gas is the same as the direction in which the sample gas flows while being cooled by the cooling gas. Thereby, the temperature difference between the cooling gas for heat exchange and the sample gas can be set larger, and the sample gas can be cooled more effectively.

In addition, according to the water separator 1 , the outlet-side opening 11 a of the first pipe 11 is disposed below the position where the sample gas guide 15 communicates with the outlet chamber 13 , so that dripping from the outlet-side opening 11 a to the outlet can be more reliably prevented. The moisture in the chamber 13 invades the sample gas guide 15. Therefore, it is possible to more reliably prevent moisture from being mixed into the sample gas that has been separated from the moisture and guided by the sample gas guide section 15 .

In addition, according to the water separator 1, the water dripped from the first pipe 11 and discharged to the outlet chamber main body 18 passes through the communication pipe 19, falls to the water surface of the water Wa stored in the water recovery chamber 14, and is recovered. In the moisture recovery chamber 14. In addition, the sample gas flowing out from the first pipe 11 to the outlet chamber main body 18 flows toward the sample gas guide 15 and is guided by the sample gas guide 15 to be supplied to the analyzer 101 of the supply destination. And, according to the water separation device 1, the lower end of the communication pipe portion 19 connecting the outlet chamber main body portion 18 and the water recovery chamber 14 is opened at a place lower than the water surface of the water Wa stored in the water recovery chamber 14, and the moisture The water Wa in the recovery chamber 14 opens. Therefore, it is possible to reliably prevent the air outside the outlet chamber body portion 18 from flowing in through the communication pipe portion 19 opened in the water recovery chamber 14 . Thereby, it is possible to reliably prevent outside air from being mixed into the sample gas flowing from the outlet chamber main body portion 18 toward the sample gas guide portion 15 and guided by the sample gas guide portion 15 .

[Second Embodiment] Next, a water separator 2 according to a second embodiment of the present invention will be described. Fig. 5 is a diagram showing a water separator 2 according to a second embodiment of the present invention. In addition, in FIG. 5 , the moisture separator 2 is shown in a cross-sectional view, and further shown together with a part of the air cooler 109 . For example, like the moisture separator 1 of the first embodiment, the moisture separator 2 of the second embodiment is applied to a system for separating Moisture, and the sample gas is supplied to the analyzer 101. In addition, in the following description of the second embodiment, differences from the above-mentioned first embodiment will be described, and for the same or corresponding configurations as those of the above-mentioned first embodiment, the same symbols or references will be given in the drawings. The same symbols are used to omit repeated explanations. In addition, in FIG. 5 , similar to FIG. 3 , the flow of the sample gas is schematically shown by arrows of thin dotted lines, the flow of cooling gas is schematically shown by arrows of thin solid lines, and the flow of cooling gas is schematically shown by arrows of thick dotted lines. The case where the water separated from the sample gas falls.

Similar to the moisture separator 1 of the first embodiment, the moisture separator 2 of the second embodiment shown in FIG. The analyzer supply system 108 supplies the sample gas. In addition, the water separator 2 includes a first pipe 11 , a second pipe 12 , an outlet chamber 13 , a water recovery chamber 14 , and a sample gas guide 15 similarly to the water separator 1 . However, the moisture separator 2 differs from the moisture separator 1 in terms of the configuration regarding the flow direction of the cooling gas in the second pipe 12 .

In the water separator 2, similarly to the second pipe 12 of the water separator 1, the second pipe 12 is arranged inside a part of the first pipe 11, and is aligned with the central axis of the first pipe 11. Arranged concentrically. Furthermore, the cooling gas system supplied from the air cooler 109 is comprised so that it may introduce into the 2nd piping 12 via the cooling gas introduction pipe 17a. However, in the water separator 2, unlike the water separator 1, the second piping 12 is configured so that the cooling gas flows upward.

In the water separator 2, one end in the pipe length direction of the cooling gas introduction pipe 17a is connected to the connection pipe 112 connected to the air cooler 109, and the other end in the pipe length direction is connected to the pipe body portion 12a of the second pipe 12. The lower end side is connected to the pipe main body portion 12a. In addition, the other end of the cooling gas introduction pipe 17a is airtightly passed through a through hole provided on the lower end side of the pipe main body 12a and penetrates the pipe wall of the pipe main body 12a, and opens inside the pipe main body 12a. Thereby, the air cooler 109 communicates with the lower end area in the second piping 12 via the cooling gas introduction pipe 17 a, and the cooling air from the air cooler 109 is introduced into the lower end area in the second piping 12 .

In addition, the cooling gas introduced into the second piping 12 from the cooling gas introduction pipe 17a and flowing through the second piping 12 is discharged from the second piping 12 through the cooling gas discharge pipe 17b. One end of the cooling gas discharge pipe 17b in the pipe length direction is connected to the pipe body 12a on the upper end side of the pipe body 12a, and the other end in the pipe length direction protrudes to the outside of the pipe body 12a. In addition, one end of the cooling gas discharge pipe 17b passes through a through hole provided on the upper end side of the pipe main body 12a in an airtight state and penetrates the pipe wall of the pipe main body 12a, and opens inside the pipe main body 12a. On the other hand, the other end portion of the cooling gas discharge pipe 17b protruding outward from the pipe main body portion 12a is opened to the outside. Thereby, the area on the upper end side in the second pipe 12 communicates with the outside of the second pipe 12 via the cooling gas discharge pipe 17b.

In the moisture separator 2 , the cooling gas discharged from the air cooler 109 is introduced into the region on the lower end side in the second pipe 12 via the cooling gas introduction pipe 17 a. In addition, the cooling air introduced into the second pipe 12 flows upward in a region inside the second pipe 12 and outside the first pipe 11 . On the other hand, the sample gas flows downward through the first pipe 11 arranged concentrically inside the second pipe 12 . Therefore, the sample gas flows downward inside the first pipe 11 , and the cooling gas flows upward inside the second pipe 12 and outside the first pipe 11 . , heat exchange is performed between the sample gas and the cooling gas. Thus, in the flow of the first pipe 11, the sample gas is cooled, and the amount of saturated water vapor is condensed according to the difference in the amount of saturated water vapor due to the temperature drop along with the decrease in the temperature of the sample gas. Moisture is separated from the sample gas in the first pipe 11 . The moisture separated from the sample gas in the first pipe 11 falls in the first pipe 11 and drops into the outlet chamber 13 from the outlet side opening 11a at the lower end of the first pipe 11 that opens in the outlet chamber 13, It passes through the outlet chamber 13 and is recovered toward the water recovery chamber 14 . In addition, the cooling gas that flows upward in the second pipe 12 and exchanges heat with the sample gas through the pipe wall of the first pipe 11 flows toward the cooling gas discharge pipe 17b, and is discharged through the cooling gas discharge pipe 17b. It is discharged to the outside of the second piping 12 . In addition, the sample gas from which moisture has been separated flows out from the first pipe 11 to the outlet chamber 13 , flows toward the sample gas guide 15 , and is supplied from the sample gas guide 15 to the analyzer 101 through the analyzer supply system 108 .

According to the moisture separator 2 described above, similarly to the moisture separator 1 of the first embodiment, when separating moisture from the sample gas, a heat exchanger using a liquid refrigerant is not required, and thus an increase in equipment cost and installation space can be suppressed. In addition, according to the water separator 2, the sample gas flows downward in the first pipe 11, and the cooling gas flows upward in the second pipe 12 in which the first pipe 11 is disposed. The heat exchange between them, while the sample gas is cooled. Therefore, in the region where the first pipe 11 is disposed inside the second pipe 12 and extends in the vertical direction, the sample gas and the cooling gas system flow in the vertical direction over the entire length in the vertical direction. Efficient heat exchange between gases. Thereby, the cooling efficiency of the sample gas can be improved, and the water separation ability can be improved. In addition, according to the water separator 2 , similarly to the water separator 1 of the first embodiment, the water separated from the sample gas can be easily recovered, and the water-separated sample gas can be efficiently guided.

Therefore, according to the second embodiment, it is possible to provide the water separator 2 which can suppress the increase in equipment cost and installation space, and can improve the cooling efficiency of the sample gas to realize the improvement of the water separation ability, and can also be easily recovered. moisture and guides the sample gas efficiently.

[third embodiment] Next, a water separator 3 according to a third embodiment of the present invention will be described. Fig. 6 is a diagram showing a water separator 3 according to a third embodiment of the present invention. In addition, in FIG. 6, the moisture separator 3 is shown in cross-sectional view. For example, like the moisture separator 1 of the first embodiment, the moisture separator 3 of the third embodiment is applied to a system for separating Moisture, and the sample gas is supplied to the analyzer 101. In addition, in the following description of the third embodiment, differences from the above-mentioned first embodiment will be described, and for the same or corresponding configurations as those of the above-mentioned first embodiment, the same symbols or references will be attached in the drawings. The same symbols are used to omit repeated explanations. In addition, in FIG. 6, similarly to FIG. 3, the flow of the sample gas is schematically shown by arrows of thin dotted lines, the flow of cooling gas is schematically shown by arrows of thin solid lines, and the flow of cooling gas is schematically shown by arrows of thick dotted lines. The case where the water separated from the sample gas falls.

Similar to the moisture separator 1 of the first embodiment, the moisture separator 3 of the third embodiment shown in FIG. 6 cools the sample gas introduced from the sampling system 107a, separates the moisture contained in the sample gas, and sends The analyzer supply system 108 supplies the sample gas. In addition, the water separator 3 includes a first pipe 11 , a second pipe 12 , an outlet chamber 13 , a water recovery chamber 14 , and a sample gas guide 15 similarly to the water separator 1 . However, the water separator 3 is different from the water separator 1 in that it includes a plurality of first pipes 11 .

FIG. 7(A) is a diagram showing a cross section of the water separator 3, and it is a diagram showing a cross section viewed from the position of the arrow A-A in FIG. 6 . Furthermore, in FIG. 7(A), as a cross section of the water separator 3, only the cross sections of the first piping 11 and the second piping 12 appearing at the arrow position of the A-A line in FIG. 6 are shown, and the water separator 3 is omitted. Graphics for other parts of the . As shown in FIG. 6 and FIG. 7(A), in the moisture separator 3 , a plurality of first pipes 11 are provided, specifically, two are provided.

Each of the two first pipes 11 is configured in the same manner as the first pipe 11 of the moisture separator 1, and is provided as a long and thin metal circular pipe extending linearly, and is configured to be introduced into a sample gas containing moisture. And the pipe through which the sample gas flows downward. Parts of each of the two first pipes 11 are arranged inside the second pipe 12 and are supported relative to the second pipe 12 in a state in which the longitudinal direction extends linearly in the vertical direction. In addition, the two first pipes 11 extend parallel to each other in the vertical direction inside the second pipe 12 extending in the vertical direction. Furthermore, each first pipe 11 extends parallel to the direction in which the second pipe 12 extends. Furthermore, each of the upper cover portion 12b and the lower cover portion 12c of the second piping 12 is provided with two through holes for each of the first piping 11 to be inserted in an airtight state, and each of the first piping 11 is inserted. It is supported by the second pipe 12 in a state of being in the through holes of the upper cover part 12b and the lower cover part 12c.

In addition, the upper ends of the two first pipes 11 are connected to the downstream end of the sampling system 107b. In addition, in the third embodiment, the sampling system 107b is branched into two systems on the downstream side. In addition, each of the two first pipes 11 is connected to the respective downstream end portions of the two systems branched on the downstream side of the sampling system 107b. The sample gas containing moisture in a saturated water vapor state is introduced from the downstream side end of the branched system in the sampling system 107 a to the upper end of each first pipe 11 . The sample gas introduced from above to the upper end of each first pipe 11 flows downward inside each first pipe 11 along the vertical direction in which each first pipe 11 extends. Each first pipe 11 is inserted inside the second pipe 12 , and the lower end of each first pipe 11 is opened in the outlet chamber 13 . In addition, the outlet-side opening 11 a that opens to the outlet chamber 13 at the lower end of each first pipe 11 is disposed below the position where the sample gas guide 15 communicates with the outlet chamber 13 .

In the water separator 3 , the cooling gas discharged from the air cooler 109 is introduced into the region on the upper end side in the second piping 12 through the cooling gas introduction pipe 17 a. Then, the cooling air introduced into the second pipe 12 flows downward in a region inside the second pipe 12 and outside each of the two first pipes 11 . On the other hand, the sample gas flows downward through each of the first pipes 11 arranged to extend vertically inside the second pipe 12 . Therefore, the sample gas flows downward inside the first pipes 11, and the cooling gas flows downward inside the second pipes 12 and outside the first pipes 11. The entire circumference of the wall, heat exchange between the sample gas and the cooling gas. In this way, the sample gas is cooled in the flow of each first pipe 11, and the saturated water vapor amount decreases due to the temperature drop in the sample gas, and condenses according to the difference in the saturated water vapor amount due to the temperature. The water in the system is separated from the sample gas in each first pipe 11. The moisture separated from the sample gas in each of the first pipes 11 falls in each of the first pipes 11, and drips into the outlet chamber from the outlet side opening 11a at the lower end of each of the first pipes 11 that opens in the outlet chamber 13. 13, it is recovered by the water recovery chamber 14 through the outlet chamber 13. In addition, the cooling gas that flows downward in the second pipe 12 and exchanges heat with the sample gas through the pipe wall of each first pipe 11 is discharged to the side of the second pipe 12 through the cooling gas discharge pipe 17b. external. In addition, the sample gas from which moisture has been separated flows out from the first pipes 11 to the outlet chamber 13 and flows toward the sample gas guide 15 , and is supplied to the analyzer 101 from the sample gas guide 15 through the analyzer supply system 108 .

According to the moisture separator 3 described above, similar to the moisture separator 1 according to the first embodiment, when separating moisture from the sample gas, a heat exchanger using a liquid refrigerant is not required, and thus an increase in equipment cost and installation space can be suppressed. Furthermore, according to the water separator 3, the sample gas flows downward through the plurality of (two in this embodiment) first pipes 11, and the cooling gas system is arranged inside the second pipe 12 of the plurality of first pipes 11. At the same time, heat exchange is performed between the cooling gas and the sample gas, and the sample gas is cooled. Therefore, in the region where each first pipe 11 is arranged inside the second pipe 12 and extends in the vertical direction, the sample gas and the cooling gas system flow in the vertical direction over the entire length in the vertical direction. Effective heat exchange with cooling gas. Thereby, the cooling efficiency of the sample gas can be improved, and the water separation ability can be improved. In addition, according to the moisture separator 3 , similarly to the moisture separator 1 of the first embodiment, the moisture separated from the sample gas can be easily recovered, and the moisture-separated sample gas can be efficiently guided.

Therefore, according to the third embodiment, the water separator 3 can be provided, which can suppress the increase in equipment cost and installation space, and can improve the cooling efficiency of the sample gas to realize the improvement of the water separation ability, and can also be easily recovered. moisture and guides the sample gas efficiently.

In addition, according to the moisture separator 3, the sample gas flows downward in the plurality of first pipes 11, and the cooling gas flows downward in the second pipe 12 in which the plurality of first pipes 11 are disposed. Simultaneously, Heat exchange takes place between the cooling gas and the sample gas, while the sample gas is cooled. Therefore, heat exchange is performed between the sample gas and the cooling gas via the pipe walls of the plurality of first pipes 11 . In addition, when comparing the case where there is one first pipe 11 and the case where there are plural first pipes, when the total cross-sectional area is the same size and the total flow rate of the sample gas per unit time is the same, then when the first pipe 11 When there are plural numbers of 11, the surface area of the pipe wall of the first pipe 11 that exchanges heat with the cooling gas increases. Therefore, according to the moisture separator 3 , since heat exchange can be more effectively performed between the cooling gas and the sample gas, the cooling efficiency of the sample gas can be further improved, and the moisture separation capability can be improved.

In addition, in 3rd Embodiment, the form which provided the water separator 3 with two 1st piping 11 was illustrated, but the form which provided more 1st piping 11 can also be implemented. Fig. 7(B) is a diagram showing a cross section of a water separator 3a according to a modified example of the third embodiment. Fig. 7(C) is a diagram showing a cross section of a water separator 3b according to another modified example of the third embodiment. In addition, FIG. 7(B) is a cross section at a position corresponding to the position indicated by the A-A line arrow in FIG. 6 for the water separator 3 a in the water separator 3 a. In addition, FIG. 7(C) is a cross section at a position corresponding to the position indicated by the arrow A-A line in FIG. 6 for the water separator 3 b in the water separator 3 b.

The moisture separator 3a of the modified example shown in FIG. 7(B) and the moisture separator 3b of the modified example shown in FIG. The number of 11 varies. The water separator 3 a shown in FIG. 7(B) is provided with three first pipes 11 , and the water separator 3 b shown in FIG. 7(C) is provided with four first pipes 11 . In any one of the water separator 3a and the water separator 3b, the plurality of first pipes 11 are respectively connected to a plurality of systems branched on the downstream side of the sampling system 107b, and sample gases are respectively introduced. In addition, in any one of the water separator 3a and the water separator 3b, the plurality of first pipes 11 extend in parallel to each other in the vertical direction inside the second pipe 12, and the sample gas flows in the first pipes 11 toward each other. Downward flow, and further, the outlet side opening 11 a of the lower end portion of each first pipe 11 is opened in the outlet chamber 13 .

7(B) and 7(C) like the water separator 3a and the water separator 3b shown in the modified example, it is also possible to implement a form in which three or more first pipes 11 are provided. According to this aspect, the wall surface area of the first pipe 11 that exchanges heat with the cooling gas can be further increased according to the number of the first pipe 11, and the cooling efficiency of the sample gas can be further improved to realize the separation of moisture. ability to improve.

[Fourth Embodiment] Next, a water separator 4 according to a fourth embodiment of the present invention will be described. Fig. 8 is a diagram showing a water separator 4 according to a fourth embodiment of the present invention. In addition, in FIG. 8, the moisture separator 4 is shown in cross-sectional view. For example, like the moisture separator 1 of the first embodiment, the moisture separator 4 of the fourth embodiment is applied to a system for separating Moisture, and the sample gas is supplied to the analyzer 101. In addition, in the following description of the fourth embodiment, differences from the above-mentioned first embodiment will be described, and for the same or corresponding configurations as those of the above-mentioned first embodiment, the same symbols or references will be added to the drawings. The same symbols are used, so repeated explanations are omitted. In addition, in FIG. 8 , similar to FIG. 3 , the flow of the sample gas is schematically shown by arrows of thin dotted lines, the flow of cooling gas is schematically shown by arrows of thin solid lines, and the flow of cooling gas is schematically shown by arrows of thick dotted lines. The case where the water separated from the sample gas falls.

Like the water separator 1 of the first embodiment, the water separator 4 of the fourth embodiment shown in FIG. 8 cools the sample gas introduced from the sampling system 107a, separates the moisture contained in the sample gas, and separates the sample gas. The gas is supplied to the analyzer supply system 108. In addition, the water separator 4 includes a first pipe 21 , a second pipe 12 , an outlet chamber 13 , a water recovery chamber 14 , and a sample gas guide 15 similarly to the water separator 1 . However, the water separator 4 is different from the water separator 1 in the configuration of the first piping 21 .

In the water separator 4, like the first pipe 11 of the water separator 1, the first pipe 21 is a round pipe made of metal, which is configured to introduce a sample gas containing moisture and send the sample gas to Piping that flows below. In addition, a part of the first pipe 21 is disposed inside the second pipe 12 and supported relative to the second pipe 12 while being inserted into the through holes of the upper cover part 12b and the lower cover part 12c. In addition, the upper end of the first pipe 21 is connected to the downstream end of the sampling system 107b. In addition, the lower end portion of the first pipe 21 opens into the outlet chamber 13 and is disposed below the position where the sample gas guide 15 communicates with the outlet chamber 13 . However, the first piping 21 is different from the first piping 11 of the water separator 1 in the shape of the portion arranged inside the second piping 12 .

The first pipe 21 is provided so as to bend multiple times inside the second pipe 12 and extend downward. More specifically, the first pipe 21 is provided such that the arc-shaped curved portion extending downward and the portion extending downward in a direction inclined relative to the vertical direction alternately repeats and extends downward. extend.

According to the water separator 4 , when the sample gas is introduced into the first pipe 21 , it flows downward along the first pipe 21 bent several times in the second pipe 12 and extending downward. In addition, the cooling air system flows downward on the outside of the first pipe 11 that extends in a bend and on the inside of the second pipe 12 . Thereby, heat exchange is efficiently performed between the cooling gas and the sample gas through the entire circumference of the pipe wall of the first pipe 21 which is bent and extended, and the sample gas is cooled and moisture is separated from the sample gas.

Thus, according to the fourth embodiment, similarly to the first embodiment, it is possible to provide a water separator 4 that can suppress an increase in equipment cost and installation space, and can achieve water separation by improving the cooling efficiency of the sample gas. Improved capacity, which in turn enables easy water recovery and efficient sample gas guidance.

In addition, according to the moisture separator 4 , the sample gas flows through the first pipe 21 that is bent multiple times in the second pipe 12 and extends downward. Thereby, the sample gas flows downward along the first pipe 21 which has a longer path than the straight path inside the second pipe 12, and at the same time passes through the pipe wall of the pipe 11 between the cooling gas. The heat exchange between them is cooled, while the moisture is separated. In this way, when the flow rate of the sample gas per unit time is the same, compared with the case of a straight path, in the first pipe 21 having a longer path, the distance between the cooling gas and the cooling gas can be extended. time of heat exchange. Therefore, according to the water separator 4 , since heat exchange can be more effectively performed between the cooling gas and the sample gas, the cooling efficiency of the sample gas can be further improved, and the water separation ability can be improved.

[Fifth Embodiment] Next, a water separator 5 according to a fifth embodiment of the present invention will be described. Fig. 9 is a diagram showing a water separator 5 according to a fifth embodiment of the present invention. In addition, in FIG. 9, the moisture separator 5 is shown in cross-sectional view. For example, like the moisture separator 1 of the first embodiment, the moisture separator 5 of the fifth embodiment is applied to a system for separating Moisture, and the sample gas is supplied to the analyzer 101. In addition, in the following description of the fifth embodiment, differences from the above-mentioned first embodiment will be described, and for the same or corresponding configurations as those of the above-mentioned first embodiment, the same symbols or references will be attached in the drawings. The same symbols are used to omit repeated explanations. In addition, in FIG. 9 , similar to FIG. 3 , the flow of the sample gas is schematically shown by arrows of thin dotted lines, the flow of cooling gas is schematically shown by arrows of thin solid lines, and the flow of cooling gas is schematically shown by arrows of thick dotted lines. The case where the water separated from the sample gas falls.

Like the water separator 1 of the first embodiment, the water separator 5 of the fifth embodiment shown in FIG. 9 cools the sample gas introduced from the sampling system 107a, separates the moisture contained in the sample gas, and separates the sample gas. The gas is supplied to the analyzer supply system 108. Also, like the water separator 1 , the water separator 5 includes a first pipe 22 , a second pipe 23 , an outlet chamber 13 , a water recovery chamber 14 , and a sample gas guide 15 . However, the water separator 5 is different from the water separator 1 in the structure of arrangement of the first pipe 22 and the second pipe 23 .

The first pipe 22 is configured as a pipe into which a sample gas containing moisture is introduced and the sample gas flows downward. The first pipe 22 is provided as a cylindrical pipe that has a circular cross section and extends linearly, and is configured to be reduced in diameter in a stepwise manner on one end side in the longitudinal direction. The first pipe 22 is provided as a pipe made of metal having excellent thermal conductivity, for example, a pipe made of stainless steel. The first piping 22 is, for example, fixedly supported with respect to the support frame 16 fixed to the water recovery chamber 14 . Moreover, the 1st piping 22 is supported with respect to the support frame 16 in the state which extended the longitudinal direction in the up-down direction, and is provided in this embodiment so that it may extend linearly up and down.

The first pipe 22 includes a large-diameter pipe portion 24 and a small-diameter pipe portion 25 . The large-diameter pipe part 24 is provided with: a large-diameter pipe body part 24a; an upper cover part 24b that closes the upper end of the large-diameter pipe body part 24a;

The large-diameter pipe body part 24a is provided in the shape of a round pipe that has a circular cross section and extends linearly up and down. Furthermore, a sample gas introduction pipe 26 is connected to the upper end side of the large-diameter pipe main body portion 24a. The sample gas introduction pipe 26 is provided as an elongated circular pipe, and is configured to introduce the sample gas supplied from the sampling system 107 b into the first pipe 22 . More specifically, in the sample gas introduction pipe 26, one end in the pipe length direction is connected to the end on the downstream side of the sampling system 107b, and the other end in the pipe length direction is connected to the upper end side of the large-diameter pipe body part 24a and the large-diameter pipe body part 24a. The tube body portion 24a is connected. In addition, the other end portion of the sample gas introduction pipe 26 is a through-hole provided on the upper end side of the large-diameter tube body portion 24a and penetrating the tube wall of the large-diameter tube body portion 24a. In addition, the other end of the sample gas introduction tube 26 is inserted into the large-diameter tube main body 24a in a state of being airtightly sealed to the edge of the through hole on the upper end side of the large-diameter tube main body 24a via a sealing member. The through-hole on the upper end side opens inside the large-diameter pipe main body portion 24a. Thereby, the sampling system 107 b communicates with the area on the upper end side of the first pipe 22 through the sample gas introduction pipe 26 , and the sample gas is introduced into the area on the upper end side of the first pipe 22 .

In addition, a through-hole through which the second pipe 23 described later is inserted through the pipe wall of the large-diameter pipe main body 24 a is provided on the lower end side of the large-diameter pipe main body 24 a. The second pipe 23 is inserted into the first pipe 22, and its lower end portion is a through hole penetrating the lower end side of the large diameter pipe main body 24a from the inside to the outside of the large diameter pipe main body 24a. In addition, the portion on the lower end side of the second pipe 23 is inserted into the large-diameter pipe main body portion 24a in a state of being airtightly sealed to the edge of the through hole on the lower end side of the large-diameter pipe main body portion 24a via a sealing member. The through-hole on the lower end side opens to the outside of the large-diameter pipe main body portion 24a.

The upper cover part 24b of the large-diameter pipe part 24 is provided as a disc-shaped member with a through-hole formed in the center, and is fixed to the large-diameter pipe main body in a state of airtight contact with the upper end of the large-diameter pipe main body part 24a. The upper end of the portion 24a. In addition, the second pipe 23 is inserted into the through hole of the upper cover part 24b. The second pipe 23 is inserted into the through hole of the upper cover part 24b in a state of being in close contact with the edge of the through hole of the upper cover part 24b in an airtight state via a sealing member.

The lower cover part 24c of the large-diameter pipe part 24 is provided as a disc-shaped member with a through-hole formed in the center, and is fixed to the large-diameter pipe in a state of airtight contact with the lower end of the large-diameter pipe main body part 24a. The lower end portion of the main body portion 24a. Furthermore, the small-diameter tube part 25 is fixed to the through hole of the lower cover part 24c.

The small-diameter pipe part 25 is arranged in series with the large-diameter pipe part 24 below the large-diameter pipe part 24 . In addition, the small-diameter pipe portion 25 is arranged vertically on the same central axis with respect to the large-diameter pipe portion 24 . The small-diameter tube portion 25 is formed in a circular tube shape with a diameter smaller than that of the large-diameter tube portion 24 , is provided elongated in the vertical direction, and extends downward in the outlet chamber 13 from the lower end of the large-diameter tube portion 24 . Therefore, the first pipe 22 is configured such that the large-diameter pipe portion 24 and the small-diameter pipe portion 25 are sequentially arranged linearly up and down, and furthermore, on the lower end side continuing from the large-diameter pipe portion 24 to the small-diameter pipe portion 25, The diameter decreases stepwise from the large-diameter large-diameter pipe portion 24 toward the small-diameter small-diameter pipe portion 25 .

In addition, the upper end of the small-diameter tube part 25 is fitted and fixed in an airtight state to a through hole provided at the center of the lower cover part 24 c of the large-diameter tube part 24 , and opens to the large-diameter tube part 24 . Thereby, the small-diameter tube part 25 is connected to the lower cover part 24c of the large-diameter tube part 24 at the upper end part, and communicates with the large-diameter tube part 24. As shown in FIG. In addition, the small-diameter tube portion 25 opens into the outlet chamber 13 at its lower end to communicate with the outlet chamber 13 . In addition, the lower end portion of the small-diameter tube portion 25 is the lower end portion of the first pipe 22, and the outlet-side opening 22a opened to the outlet chamber 13 at the lower end portion of the first pipe 22 is arranged in the comparative sample gas guide portion 15 to communicate with the outlet chamber. The position of 13 is further below.

At least a part of the second pipe 23 is arranged inside the large-diameter pipe portion 24 of the first pipe 22, and is configured as a pipe through which cooling gas having a lower temperature than the sample gas is introduced and the cooling gas flows downward. The second pipe 23 is a pipe provided in the shape of a round pipe that has a circular cross section and extends elongatedly. The second piping 23 is provided as a round pipe made of metal having excellent thermal conductivity, for example, a round pipe made of stainless steel. The second pipe 23 is supported with respect to the first pipe 22 . Moreover, the 2nd piping 23 has the upper-lower piping part 23a and the horizontal piping part 23b.

The upper and lower piping portions 23 a of the second piping 23 are provided as portions extending linearly in the vertical direction, and are arranged in a state inserted into the large-diameter piping portion 24 of the first piping 22 . The upper and lower piping portions 23 a are concentrically arranged with respect to the large-diameter pipe portion 24 so that the central axes coincide, and are arranged to extend vertically in parallel with the large-diameter pipe portion 24 . The upper and lower pipe parts 23a are supported by the large-diameter pipe part 24 by penetrating through the through-hole provided in the upper cover part 24b of the large-diameter pipe part 24 in an airtight state at the upper end side. Moreover, the upper end part of the upper and lower piping part 23a protrudes upward from the upper cover part 24b, and is arrange|positioned outside the large-diameter pipe part 24. As shown in FIG. And the upper end part of the upper-lower piping part 23a is connected to the end part 109b of the air cooler 109 via the connector (illustration omitted). Thereby, the cooling air system supplied from the air cooler 109 is introduced into the second pipe 23 .

The horizontal piping part 23b of the 2nd piping 23 is provided in the lower end side of the upper and lower piping part 23a continuously with the upper and lower piping part 23a, and is the part extended linearly in the horizontal direction. The horizontal piping portion 23b is connected to the upper and lower piping portions 23a via a bent portion bent at approximately 90°, and one end of the horizontal piping portion 23b communicates with the lower end of the upper and lower piping portion 23a. Furthermore, the horizontal piping portion 23b is provided so as to extend in the horizontal direction from a portion connected to the lower end of the upper and lower piping portions 23a, and to extend from the inside to the outside of the large-diameter pipe portion 24 of the first piping 22 . In addition, the horizontal piping portion 23b is supported by the large-diameter pipe portion 24 through a through-hole provided in the pipe wall of the large-diameter pipe body portion 24a of the large-diameter pipe portion 24 in an airtight state. In addition, the end portion of the horizontal piping portion 23 b on the side opposite to the side connected to the upper and lower piping portions 23 a protrudes laterally from the large-diameter pipe body portion 24 a and is disposed outside the large-diameter pipe portion 24 . In addition, the horizontal piping portion 23 b is opened at an end portion arranged outside the large-diameter pipe portion 24 . Furthermore, the horizontal piping portion 23b can also be constituted by connecting two piping portions, so that it can easily be arranged in a state of penetrating the pipe wall of the large-diameter pipe main body portion 24a and protruding from the inside to the outside of the large-diameter pipe main body portion 24a. form. That is, the horizontal piping portion 23b may be formed by connecting a piping portion that is continuous with the upper and lower piping portions 23a and passes through the pipe wall of the large-diameter pipe main body portion 24a, and a piping portion that extends outside the large-diameter pipe main body portion 24a. .

In the moisture separator 5 , the sample gas discharged from the sampling system 107 b is introduced into the region on the upper end side in the first pipe 22 via the sample gas introduction pipe 26 . Then, the sample gas introduced into the first pipe 22 flows downward in a region inside the first pipe 22 and outside the second pipe 23 . On the other hand, the cooling air discharged from the air cooler 109 is introduced into the upper and lower piping portions 23 a of the second piping 23 , and flows downward in the upper and lower piping portions 23 a arranged inside the large-diameter pipe portion 24 of the first piping 22 . . Therefore, the cooling gas system flows downward inside the upper and lower piping portions 23a of the second piping 23, and the sample gas flows downward inside the large-diameter pipe portion 24 of the first piping 22 and outside the upper and lower piping portions 23a. , through the entire circumference of the pipe wall of the upper and lower pipe portions 23a of the second pipe 23, heat exchange is performed between the sample gas and the cooling gas. As a result, the sample gas is cooled in the flow of the large-diameter pipe part 24 of the first pipe 22, and the amount of saturated water vapor due to the temperature drop in the sample gas decreases, and the saturated water vapor due to temperature decreases. The water condensed due to the difference in amount is separated from the sample gas in the large-diameter pipe part 24 of the first pipe 22 . The water separated from the sample gas in the large-diameter tube part 24 falls in the small-diameter tube part 25 connected with it below the large-diameter tube part 24 , and flows from the lower end of the small-diameter tube part 25 opened in the outlet chamber 13 The outlet side opening 22a of the water drips into the outlet chamber 13, passes through the outlet chamber 13 and is recovered by the water recovery chamber 14. In addition, the cooling gas that flows downward in the upper and lower piping portions 23a of the second piping 23 and exchanges heat with the sample gas through the pipe walls of the upper and lower piping portions 23a flows toward the horizontal piping portion 23b and flows from the horizontal piping to the horizontal piping portion 23b. The end of the portion 23b is discharged to the outside of the second pipe 23 . The sample gas from which moisture has been separated flows out from the first pipe 22 to the outlet chamber 13 to flow toward the sample gas guide 15 , and is supplied from the sample gas guide 15 to the analyzer 101 via the analyzer supply system 108 .

According to the moisture separator 5 described above, similarly to the moisture separator 1 of the first embodiment, when separating moisture from the sample gas, a heat exchanger using a liquid refrigerant is not required, and thus an increase in equipment cost and installation space can be suppressed. And, according to the water separator 5, the sample gas flows downward in the first pipe 22, and the cooling gas flows downward in the second pipe 23 arranged inside the first pipe 22, and at the same time, the cooling gas and the sample gas The heat exchange between them, while the sample gas is cooled. Therefore, in the area where the second pipe 23 is arranged inside the first pipe 22 and extends in the vertical direction, the sample gas and the cooling gas system flow in the vertical direction over the entire length in the vertical direction. Heat is efficiently exchanged between the gases. Thereby, the cooling efficiency of the sample gas can be improved, and the water separation ability can be improved. In addition, according to the water separator 5 , similarly to the water separator 1 of the first embodiment, the water separated from the sample gas can be easily recovered, and the water-separated sample gas can be efficiently guided.

Therefore, according to the fifth embodiment, it is possible to provide a water separator 5 that can suppress an increase in equipment cost and installation space, and can improve the cooling efficiency of the sample gas to achieve an improvement in the water separation ability, and can be easily recovered. moisture and guides the sample gas efficiently.

[Sixth Embodiment] Next, a water separator 6 according to a sixth embodiment of the present invention will be described. Fig. 10 is a diagram showing a water separator 6 according to a sixth embodiment of the present invention. In addition, in FIG. 10, the moisture separator 6 is shown in cross-sectional view. For example, like the moisture separator 1 of the first embodiment, the moisture separator 6 of the sixth embodiment is applied to a system for separating Moisture, and the sample gas is supplied to the analyzer 101. In addition, similarly to the water separator 5 of the fifth embodiment, the water separator 6 of the sixth embodiment is configured such that a part of the second piping 23 into which the cooling gas is introduced and flows is arranged in the area into which the sample gas is introduced. and flow inside the first pipe 22. In addition, in the following description of the sixth embodiment, differences from the above-mentioned first embodiment and fifth embodiment will be described, and the same or corresponding configurations as those of the above-mentioned first embodiment and fifth embodiment will be described. , add or quote the same symbols in the drawings, thereby omitting repeated explanations. In addition, in FIG. 10 , similarly to FIG. 3 and FIG. 9 , the flow of the sample gas is schematically shown by arrows of thin dotted lines, the flow of cooling gas is schematically shown by arrows of thin solid lines, and the flow of cooling gas is schematically shown by arrows of thick dotted lines. It shows the situation where the moisture separated from the sample gas falls.

Like the water separator 1 of the first embodiment and the water separator 5 of the fifth embodiment, the water separator 6 of the sixth embodiment shown in FIG. 10 cools the sample gas introduced from the sampling system 107a, and separates moisture contained in the sample gas, and the sample gas is supplied to the analyzer supply system 108 . Further, like the water separator 5 , the water separator 6 includes a first pipe 22 , a second pipe 23 , an outlet chamber 13 , a water recovery chamber 14 , and a sample gas guide 15 . However, the moisture separator 6 differs from the moisture separator 5 in that it includes a plurality of second pipes 23 .

As shown in FIG. 10 , in the moisture separator 6 , a plurality of second piping 23 are provided, specifically, two are provided. Each of the two second piping 23 is configured in the same manner as the second piping 23 of the water separator 5, and is configured as a circular pipe-shaped piping: a part is arranged inside the large-diameter pipe portion 24 of the first piping 22, and is A cooling gas having a lower temperature than the sample gas is introduced, and the cooling gas flows downward.

Each of the two second pipes 23 is configured in the same manner as the second pipe 23 of the water separator 5, and these have upper and lower pipe parts 23a and horizontal pipe parts 23b. The upper and lower pipe portions 23 a of the second pipes 23 are disposed so as to extend vertically inside the large-diameter pipe portion 24 of the first pipe 22 . Further, the upper and lower piping portions 23 a of the two second piping 23 extend parallel to each other in the vertical direction inside the large-diameter pipe portion 24 extending vertically. Furthermore, two through holes are provided in the upper cover portion 24b of the large-diameter pipe portion 24, through which the upper and lower piping portions 23a of the second piping 23 are inserted in an airtight state, and the upper and lower piping portions 23a of the second piping 23 are It is supported by the 1st piping 22 in the state inserted in the through-hole of the upper cover part 24b. Moreover, the horizontal piping part 23b of each 2nd piping 23 is provided so that it may extend in the horizontal direction continuously at the lower end side with respect to each upper and lower piping part 23a. In addition, the horizontal pipe portion 23b of each second pipe 23 extends from the inside to the outside of the large-diameter pipe portion 24 of the first pipe 22, protrudes laterally from the large-diameter pipe body portion 24a, and is positioned outside the large-diameter pipe portion 24. Open your mouth. Furthermore, two through holes through which the horizontal piping portions 23b of the second piping 23 are inserted in an airtight state are provided on the pipe wall of the large-diameter pipe main body portion 24a, and the horizontal piping portions 23b of the second piping 23 are It is supported by the first pipe 22 in a state of being inserted into the through hole of the large-diameter pipe main body portion 24a.

In addition, each of the two second pipes 23 is connected to the air cooler 109 via connecting pipes (not shown) at the upper end of the upper and lower pipe parts 23a protruding upward from the upper cover part 24b of the large-diameter pipe part 24. end 109b. Furthermore, in the sixth embodiment, the connection piping connected to the end 109b of the air cooler 109 is branched into two systems on the downstream side opposite to the side connected to the end 109b of the air cooler 109 . And each of the upper and lower piping parts 23a of the two 2nd piping 23 is connected to the downstream end part of each of the two systems branched at the downstream side of the connection piping connected to the air cooler 109. The cooling gas system is introduced into the upper end of the upper and lower piping portions 23 a of the second piping 23 from the downstream end of the system branched from the connecting piping connected to the air cooler 109 . The cooling air introduced from above to the upper end portion of the upper and lower piping portions 23a of each second piping 23 flows downward in the upper and lower piping portions 23a of each second piping 23, and then flows through the horizontal piping portion 23b of each second piping 23. It flows horizontally and is discharged to the outside of each second pipe 23 .

In the moisture separator 6 , the sample gas discharged from the sampling system 107 b is introduced into the region on the upper end side in the large-diameter pipe portion 24 of the first pipe 22 through the sample gas introduction pipe 26 . Then, the sample gas introduced into the large-diameter pipe portion 24 of the first pipe 22 flows downward in a region inside the large-diameter pipe portion 24 and outside each of the two second pipes 23 . On the other hand, the cooling air system discharged from the air cooler 109 is introduced into the upper and lower piping portions 23 a of each of the two second piping 23 , and each of the upper and lower piping portions 23 a arranged inside the large-diameter pipe portion 24 of the first piping 22 flow downwards. Therefore, the cooling gas flows downward inside the upper and lower pipe portions 23a of the second pipes 23, and the sample gas flows downward inside the large-diameter pipe portion 24 of the first pipe 22 and outside each of the upper and lower pipe portions 23a. Thereby, heat exchange is performed between the sample gas and the cooling gas via the entire circumference of the pipe wall of the upper and lower pipe portions 23 a of the respective second pipes 23 . As a result, the sample gas is cooled in the flow of the large-diameter pipe part 24 of the first pipe 22, and the amount of saturated water vapor corresponding to the temperature decreases as the temperature in the sample gas decreases. The water condensed by the difference between the two is separated from the sample gas in the large-diameter pipe part 24 of the first pipe 22 . The water separated from the sample gas in the large-diameter tube part 24 falls in the small-diameter tube part 25 connected with it below the large-diameter tube part 24 , and flows from the lower end of the small-diameter tube part 25 opened in the outlet chamber 13 The outlet side opening 22a of the water drips into the outlet chamber 13 and is recovered toward the water recovery chamber 14 through the outlet chamber 13 . In addition, the cooling gas that flows downward in the upper and lower piping portions 23 a of each second piping 23 and passes through the pipe wall of each upper and lower piping portion 23 a to exchange heat with the sample gas is directed toward the level of each second piping 23 . The piping part 23b flows, and it discharge|emits to the exterior of each 2nd piping 23 from the edge part of each horizontal piping part 23b. The sample gas from which moisture has been separated flows out from the first pipe 22 to the outlet chamber 13 to flow toward the sample gas guide 15 , and is supplied from the sample gas guide 15 to the analyzer 101 via the analyzer supply system 108 .

According to the above-mentioned water separator 6, like the water separator 1 of the first embodiment and the water separator 5 of the fifth embodiment, when separating water from the sample gas, there is no need for a heat exchanger using a liquid refrigerant, so it is possible to suppress the Increase in equipment cost and installation space. In addition, according to the water separator 6, the sample gas flows downward through the first pipe 22, and the cooling gas flows through the plurality of (two in this embodiment) second pipes 23 arranged inside the first pipe 22. The middle flows downwards while heat is exchanged between the cooling gas and the sample gas, while the sample gas is cooled. Therefore, in the region where the plurality of second pipes 23 are arranged inside the first pipe 22 and extend in the vertical direction, the sample gas and the cooling gas flow in the vertical direction over the entire length in the vertical direction, and at the same time, the sample gas flows in the vertical direction. Effective heat exchange with cooling gas. Thereby, the cooling efficiency of the sample gas can be improved, and the water separation ability can be improved. In addition, according to the water separator 6, similar to the water separator 1 of the first embodiment and the water separator 5 of the fifth embodiment, the water separated from the sample gas can be easily recovered, and the separated water can be efficiently guided. Moisture sample gas.

Therefore, according to the sixth embodiment, it is possible to provide the water separator 6 which can suppress the increase in equipment cost and installation space, and can improve the cooling efficiency of the sample gas to realize the improvement of the water separation ability, and can also be easily recovered. moisture and guides the sample gas efficiently.

In addition, according to the water separator 6, the cooling gas system flows downward in the plurality of second pipes 23, and the sample gas flows downward in the first pipe 22 in which the plurality of second pipes 23 are arranged, and at the same time, Heat exchange takes place between the cooling gas and the sample gas, while the sample gas is cooled. Therefore, heat exchange is performed between the sample gas and the cooling gas via the pipe walls of the plurality of second pipes 23 . In addition, when comparing the case where there is one second pipe 23 and the case where there are several, the total cross-sectional area is the same size, and the total flow rate of the cooling gas per unit time is the same, the second pipe 23 When there are plural numbers, the surface area of the pipe wall of the second pipe 23 that exchanges heat with the cooling gas increases. Therefore, according to the moisture separator 6 , since heat exchange can be more effectively performed between the cooling gas and the sample gas, the cooling efficiency of the sample gas can be further improved, and the moisture separation capability can be improved.

In addition, in the sixth embodiment, the form in which the water separator 6 is provided with two second pipes 23 is exemplified, but a form in which more second pipes 23 are provided may also be implemented. That is, a form of the moisture separator in which three or more second pipes 23 are arranged inside the first pipe 22 may also be implemented.

[Seventh Embodiment] Next, a water separator 7 according to a seventh embodiment of the present invention will be described. Fig. 11 is a diagram showing a water separator 7 according to a seventh embodiment of the present invention. In addition, in FIG. 11, the moisture separator 7 is shown in cross-sectional view. For example, like the moisture separator 1 of the first embodiment, the moisture separator 7 of the seventh embodiment is applied to a system for separating Moisture, and the sample gas is supplied to the analyzer 101. In addition, in the following description of the seventh embodiment, differences from the above-mentioned first embodiment will be described, and for the same configurations as or corresponding configurations to the above-mentioned first embodiment, the same symbols or references will be attached in the drawings. The same symbols are used to omit repeated explanations. In addition, in FIG. 11 , similar to FIG. 3 , the flow of the sample gas is schematically shown by arrows of thin dotted lines, the flow of cooling gas is schematically shown by arrows of thin solid lines, and the flow of cooling gas is schematically shown by arrows of thick dotted lines. The case where the water separated from the sample gas falls.

Like the water separator 1 of the first embodiment, the water separator 7 of the seventh embodiment shown in FIG. 11 cools the sample gas introduced from the sampling system 107a, separates the moisture contained in the sample gas, and separates the sample gas. The gas is supplied to the analyzer supply system 108. Also, like the water separator 1 , the water separator 7 includes a first pipe 27 , a second pipe 28 , a second pipe 29 , an outlet chamber 13 , a water recovery chamber 14 , and a sample gas guide 15 . However, the water separator 7 is different from the water separator 1 in terms of the configuration of the first pipe 27 , the second pipe 28 , and the second pipe 29 .

FIG. 12 is a diagram showing a cross section of the water separator 7, which is a diagram showing a cross section viewed from the position of the arrow B-B in FIG. 11 . Furthermore, in FIG. 12, as a cross section of the moisture separator 7, only the first piping 27, the second piping 28, and the second piping 29 that appear at the arrow position of the B-B line in FIG. 11 are shown, and the moisture separator is omitted. Illustration of other parts in 7. As shown in FIGS. 11 and 12 , in the water separator 7 , a part of the first pipe 27 is arranged inside the second pipe 29 , and a part of the second pipe 28 is arranged inside the first pipe 27 .

The first pipe 27 is configured as a pipe into which a sample gas containing moisture is introduced and the sample gas flows downward. The first pipe 27 is provided as a cylindrical pipe that has a circular cross section and extends linearly, and is configured to be reduced in diameter in a stepwise manner on one end side in the longitudinal direction. The first pipe 27 is provided as a pipe made of metal having excellent thermal conductivity, for example, a pipe made of stainless steel. The first pipe 27 is supported with respect to the second pipe 29 described later. Moreover, the 1st piping 27 is supported with respect to the 2nd piping 29 in the state which extended the longitudinal direction in the up-down direction, and in this embodiment, it is provided so that it may extend linearly up and down.

The first piping 27 is configured by including a large-diameter pipe portion 30 and a small-diameter pipe portion 31 . The large-diameter pipe portion 30 is provided in a circular pipe shape that has a circular cross section and extends linearly up and down. Furthermore, a sample gas introduction pipe 32 is connected to the upper end side of the large-diameter pipe part 30 . The sample gas introduction pipe 32 is provided as an elongated circular pipe, and is configured to introduce the sample gas supplied from the sampling system 107 b into the first pipe 27 . More specifically, in the sample gas introduction pipe 32, one end in the pipe length direction is connected to the downstream end of the sampling system 107b, and the other end in the pipe length direction is connected to the large-diameter pipe part 30 on the upper end side. Tube 30. In addition, the other end portion of the sample gas introduction pipe 32 is a through-hole provided on the upper end side of the large-diameter pipe portion 30 and penetrating the pipe wall of the large-diameter pipe portion 30 . In addition, the other end portion of the sample gas introduction pipe 32 is inserted through the large-diameter pipe portion 30 in a state of being in close contact with the edge of the through-hole on the upper end side of the large-diameter pipe portion 30 in an airtight state via a sealing member. The through-hole on the upper end side of the large-diameter pipe portion 30 opens inside. As a result, the sampling system 107b communicates with the area on the upper end side of the first pipe 27 via the sample gas introduction pipe 32 , and the sample gas is introduced into the area on the upper end side of the first pipe 27 . Furthermore, the large-diameter pipe part 30 is arranged inside the second pipe 29 described later, and the sample gas introduction pipe 32 penetrates the pipe wall of the second pipe 29 and further penetrates the pipe wall of the large-diameter pipe part 30 .

In addition, a through-hole is provided on the lower end side of the large-diameter pipe portion 30 to pass through the pipe wall of the large-diameter pipe portion 30 and to insert a second pipe 28 which will be described later. The second pipe 28 is inserted into the first pipe 27 , and its lower end part passes through the through hole on the lower end side of the large diameter pipe part 30 from the inside to the outside of the large diameter pipe part 30 . In addition, the portion on the lower end side of the second pipe 28 is inserted through the lower end of the large-diameter pipe portion 30 in a state of being in close contact with the edge of the through-hole on the lower end side of the large-diameter pipe portion 30 in an airtight state via a sealing member. side through hole.

The upper end portion of the large-diameter tube portion 30 is closed by a disc-shaped upper cover member 33 having a through hole formed in the center. The upper cover member 33 is fixed to the upper end portion of the large-diameter pipe portion 30 in a state of airtight sealing. Furthermore, the diameter of the upper cover member 33 is larger than the diameter of the large-diameter tube portion 30 , and the upper cover member 33 is provided in a state where the larger-diameter tube portion 30 protrudes more radially. Furthermore, an upper end portion of a second pipe 29 to be described later is also fixed to the upper cover member 33 . In addition, the second pipe 28 is inserted through the through hole of the upper cover member 33 . The second pipe 28 is inserted through the through hole of the upper cover member 33 in a state of being in close contact with the edge of the through hole of the upper cover member 33 in an airtight state via a sealing member.

The lower end portion of the large-diameter pipe portion 30 is closed by a disc-shaped lower cover member 34 having a through hole formed in the center. The lower cover member 34 is fixed in a state where the upper surface thereof is in close contact with the lower end portion of the large-diameter tube portion 30 in an airtight state. Furthermore, the diameter of the lower cover member 34 is larger than the diameter of the large-diameter tube portion 30 , and the lower cover member 34 is provided in a state where the larger-diameter tube portion 30 protrudes more radially. Further, a lower end portion of a second pipe 29 to be described later is also fixed to the upper surface side of the edge portion of the outer periphery of the lower cover member 34 . Furthermore, the lower cover member 34 is airtightly fixed to the upper end portion of the outlet chamber main body portion 18 a of the outlet chamber 13 on the lower surface side of the peripheral edge portion thereof. In addition, the small-diameter tube portion 31 is fixed to the through hole of the lower cover member 34 .

The small-diameter pipe part 31 is arranged in series with the large-diameter pipe part 30 below the large-diameter pipe part 30 . In addition, the small-diameter pipe portion 31 is arranged vertically on the same central axis with respect to the large-diameter pipe portion 30 . The small-diameter tube portion 31 is formed in a circular tube shape with a diameter smaller than that of the large-diameter tube portion 30 , and is provided elongated in the vertical direction, and extends downward in the outlet chamber 13 from the lower end of the large-diameter tube portion 30 . Therefore, the first piping 27 is configured such that the large-diameter pipe portion 30 and the small-diameter pipe portion 31 are arranged linearly up and down in sequence, and further, the pipe is connected from the large-diameter pipe portion 30 to the small-diameter pipe portion 31 via the lower cover member 34 . The continuous lower end side is gradually reduced in diameter from the large-diameter large-diameter pipe portion 30 to the small-diameter small-diameter pipe portion 31 .

In addition, the upper end portion of the small-diameter tube portion 31 is fitted and fixed in an airtight state to a through-hole provided at the center of the lower cover member 34 , and opens to the large-diameter tube portion 30 . Thereby, the small-diameter tube portion 31 is connected at its upper end to the large-diameter tube portion 30 via the lower cover member 34 and communicates with the large-diameter tube portion 30 . In addition, the small-diameter tube portion 31 opens into the outlet chamber 13 at its lower end to communicate with the outlet chamber 13 . In addition, the lower end portion of the small-diameter tube portion 31 is the lower end portion of the first pipe 27, and the outlet-side opening 27a opened to the outlet chamber 13 at the lower end portion of the first pipe 27 is arranged in the comparative sample gas guide portion 15 to communicate with the outlet chamber. The position of 13 is further below.

The second pipe 28 is configured as a pipe that is at least partially disposed inside the large-diameter pipe portion 30 of the first pipe 27 , is introduced with cooling gas having a lower temperature than the sample gas, and flows downward. The second pipe 28 is provided as a circular pipe that has a circular cross section and extends elongatedly. The second piping 28 is provided as a round pipe made of metal having excellent thermal conductivity, for example, a round pipe made of stainless steel. The second piping 28 is supported by the upper cover member 33 , the first piping 27 and the second piping 29 . Moreover, the 2nd piping 28 has the upper-lower piping part 28a and the horizontal piping part 28b.

The upper and lower piping portions 28 a of the second piping 28 are provided as portions extending linearly in the vertical direction, and are arranged to be inserted into the large-diameter pipe portion 30 of the first piping 27 . The upper and lower piping portions 28 a are concentrically arranged with respect to the large-diameter pipe portion 30 so that their central axes coincide, and are arranged to extend up and down parallel to the large-diameter pipe portion 30 . The upper and lower piping portions 28 a are supported by the upper cover member 33 by penetrating through a through hole provided in the upper cover member 33 in an airtight state on the upper end side. In addition, the upper end portion of the upper and lower piping portions 28 a protrudes upward from the upper cover member 33 and is arranged outside the large-diameter pipe portion 30 . And the upper end part of the upper and lower piping part 28a is connected to the end part 109b of the air cooler 109 via connection piping (illustration omitted). Thereby, the cooling gas supplied from the air cooler 109 is introduced into the second pipe 28 .

The horizontal piping part 28b of the 2nd piping 28 is provided in the lower end side of the upper and lower piping part 28a continuously with the upper and lower piping part 28a, and is the part extended linearly in the horizontal direction. The horizontal piping portion 28b is connected to the upper and lower piping portion 28a via a bent portion bent at approximately 90°, and one end of the horizontal piping portion 28b communicates with the lower end of the upper and lower piping portion 28a. Moreover, the horizontal piping portion 28b is provided so as to extend in the horizontal direction from the portion connected to the lower end portion of the upper and lower piping portion 28a, and extend from the inside to the outside of the large-diameter pipe portion 30 of the first piping 27, and further extend from the second piping portion 27 to the outside. The inside of the pipe 29 extends outward. In addition, the horizontal piping portion 28 b is supported by the large-diameter pipe portion 30 through a through-hole provided in the pipe wall of the large-diameter pipe portion 30 in an airtight state. Furthermore, the horizontal pipe portion 28 b also passes through a through hole provided in the pipe wall of the second pipe 29 disposed outside the large-diameter pipe portion 30 in an airtight state, and is also supported by the second pipe 29 . In addition, the end portion of the horizontal piping portion 28b on the side opposite to the side connected to the upper and lower piping portions 28a protrudes laterally from the large-diameter pipe portion 30, and further protrudes from the second pipe 29, and is disposed on the large-diameter pipe portion. 30 and the outside of the second pipe 29. In addition, the horizontal piping portion 28 b is opened at an end portion arranged outside the large-diameter pipe portion 30 and the second piping 29 .

Inside the second pipe 29 , a large-diameter pipe portion 30 , which is a part of the first pipe 27 , is arranged, and is configured as a pipe into which cooling gas having a lower temperature than the sample gas is introduced and the cooling gas flows downward. The second pipe 29 is a cylindrical pipe that has a circular cross section and extends linearly. The second piping 29 is provided as a round pipe made of metal having excellent thermal conductivity, for example, a round pipe made of stainless steel. The second pipe 29 is, for example, fixedly supported with respect to the support frame 16 . Moreover, the 2nd piping 29 is supported with respect to the support frame 16 in the state which extended the longitudinal direction in the up-down direction, and is provided so that it may extend linearly up and down in this embodiment.

The upper end of the second pipe 29 is closed by the upper cover member 33 , and the lower end of the second pipe 29 is closed by the lower cover member 34 . The upper cover member 33 is fixed in a state of airtight contact with the upper end of the second pipe 29, and the lower cover member 34 is fixed in a state of airtight contact with the lower end of the second pipe 29. . Furthermore, the disc-shaped upper cover member 33 is closely fixed to the upper end of the second pipe 29 on the lower surface side of the edge portion of the outer periphery, and is closely fixed to the large-diameter pipe on the lower surface side of the radially inner portion. The upper end of part 30. In addition, the disc-shaped lower cover member 34 is closely fixed to the lower end of the second pipe 29 on the upper surface side of the outer peripheral portion, and is closely fixed to the large-diameter pipe portion 30 on the upper surface side of the radially inner portion. the lower end of.

In addition, a cooling gas introduction pipe 35 a is connected to the upper end side of the second pipe 29 . The cooling gas introduction pipe 35 a is provided as an elongated circular pipe, and is configured to introduce the cooling gas supplied from the air cooler 109 into the second pipe 29 . More specifically, in the cooling gas introduction pipe 35a, one end in the pipe length direction is connected to the end 109b of the air cooler 109 via a connection pipe (not shown), and the other end in the pipe length direction is connected to the second pipe 29. The upper end side of the tube is connected to the second pipe 29 . In addition, the other end portion of the cooling gas introduction pipe 35 a is a through hole provided on the upper end side of the second pipe 29 and penetrating the pipe wall of the second pipe 29 . In addition, the other end portion of the cooling gas introduction pipe 35a is inserted through the upper end side of the second pipe 29 in a state of airtight contact with the edge of the through hole on the upper end side of the second pipe 29 via a sealing member. The through-hole is opened inside the second piping 29 . Thereby, the air cooler 109 communicates with the region on the upper end side of the second pipe 29 via the cooling gas introduction pipe 35 a, and the cooling gas is introduced into the region on the upper end side of the second pipe 29 . In addition, the other end portion of the cooling gas introduction pipe 35 a is opened in the outer region of the large-diameter pipe portion 30 of the first pipe 27 in the second pipe 29 . Therefore, the cooling gas introduced into the second pipe 29 is in the area inside the second pipe 29 and outside the large-diameter pipe part 30 of the first pipe 27, that is, between the inner peripheral surface of the second pipe 29 and the large-diameter pipe. The flow flows in the region between the outer peripheral surfaces of the pipe portion 30 .

Furthermore, one end of the cooling gas introduction pipe 35a and the upper end of the upper and lower piping portions 28a of the second piping 28 are connected to the end portion 109b of the air cooler 109 via connection piping (not shown). In the seventh embodiment, the connection piping connected to the end portion 109b of the air cooler 109 is branched into two systems on the downstream side opposite to the side connected to the end portion 109b of the air cooler 109 . In addition, one end of the cooling gas introduction pipe 35 a and the upper end of the upper and lower pipes 28 a are each connected to the downstream end of each of the two systems branched on the downstream side of the connecting pipe connected to the air cooler 109 . Thereby, the cooling gas supplied from the air cooler 109 is introduced into both the second piping 28 and the second piping 29 .

In addition, a cooling gas discharge pipe 35 b is connected to the lower end side of the second pipe 29 . The cooling gas discharge pipe 35b is provided as an elongated circular pipe, and is configured to discharge the cooling gas introduced into the second pipe 29 and flowing through the second pipe 29 from the second pipe 29 . More specifically, in the cooling gas discharge pipe 35 b , one end in the pipe length direction is connected to the second pipe 29 at the lower end side of the second pipe 29 , and the other end side in the pipe length direction is directed to the outside of the second pipe 29 . protrude. In addition, one end of the cooling gas discharge pipe 35b is airtightly provided on the lower end side of the second pipe 29 and penetrates through a through hole in the pipe wall of the second pipe 29 , and opens inside the second pipe 29 . On the other hand, the other end portion of the cooling gas discharge pipe 35b protruding to the outside from the second pipe 29 is opened to the outside. Thereby, the region on the lower end side in the second pipe 29 communicates with the outside of the second pipe 29 through the cooling gas discharge pipe 35b, and the cooling gas flowing in the second pipe 29 is discharged through the cooling gas discharge pipe 35b. to the outside.

In the moisture separator 7 , the sample gas discharged from the sampling system 107 b is introduced into the region on the upper end side in the large-diameter pipe portion 30 of the first pipe 27 through the sample gas introduction pipe 32 . Then, the sample gas introduced into the large-diameter pipe part 30 of the second pipe 27 flows downward in a region inside the large-diameter pipe part 30 and outside the second pipe 28 . On the other hand, the cooling gas discharged from the air cooler 109 is introduced into the upper and lower piping portions 28a of the second piping 28, and is introduced into the upper end side region in the second piping 29 via the cooling gas introduction pipe 35a. Then, the cooling air introduced into the upper and lower piping portions 28 a flows downward in the upper and lower piping portions 28 a arranged inside the large-diameter pipe portion 30 . In addition, the cooling air introduced into the second pipe 29 flows downward in the area inside the second pipe 29 in which the large-diameter pipe portion 30 is disposed and in the area outside the large-diameter pipe portion 30 . Therefore, the cooling gas system flows downward inside the upper and lower piping parts 28a, the sample gas flows downward outside the upper and lower piping parts 28a and inside the large-diameter pipe part 30, and the cooling gas system flows outside the large-diameter pipe part 30 and The inner side of the second pipe 29 flows downward. Thereby, the sample gas flowing in the large-diameter pipe part 30 of the first pipe 27 passes through the entire circumference of the pipe wall of the upper and lower pipe parts 28a of the second pipe 28 inside the large-diameter pipe part 30 and between the cooling gas and the cooling gas. Heat exchange is performed, and at the same time, heat exchange is also performed with the cooling gas via the entire circumference of the tube wall of the large-diameter tube portion 30 . Therefore, in the flow of the large-diameter pipe part 30 of the first pipe 27, the sample gas is cooled from both sides, such as the inside and the outside of the large-diameter pipe part 30, accompanied by the saturation of water due to the temperature drop in the sample gas. As the amount of steam decreases, the moisture condensed due to the difference in the amount of saturated water vapor due to temperature is separated from the sample gas in the large-diameter pipe part 30 of the first pipe 27 . The water separated from the sample gas in the large-diameter tube part 30 falls in the small-diameter tube part 31 connected with it below the large-diameter tube part 30 , and flows from the lower end of the small-diameter tube part 31 opened in the outlet chamber 13 The outlet side opening 27a drops into the outlet chamber 13, passes through the outlet chamber 13, and is recovered by the water recovery chamber 14. In addition, the cooling gas that flows downward through the upper and lower piping portions 28a of the second piping 28 and exchanges heat with the sample gas through the pipe walls of the upper and lower piping portions 28a flows toward the horizontal piping portion 28b of the second piping 28. , is discharged to the outside of the second piping 28 from the end of the horizontal piping portion 28b. In addition, the cooling gas that flows downward in the second pipe 29 and exchanges heat with the sample gas through the pipe wall of the large-diameter pipe part 30 is discharged to the side of the second pipe 29 through the cooling gas discharge pipe 35b. external. In addition, the sample gas from which moisture has been separated flows out from the first pipe 27 to the outlet chamber 13 , flows toward the sample gas guide 15 , and is supplied from the sample gas guide 15 to the analyzer 101 via the analyzer supply system 108 .

According to the moisture separator 7 described above, similarly to the moisture separator 1 of the first embodiment, when separating moisture from the sample gas, a heat exchanger using a liquid refrigerant is not required, and thus an increase in equipment cost and installation space can be suppressed. In addition, according to the water separator 7, the sample gas flows downward in the first pipe 27, the cooling air flows downward in the second pipe 28 arranged inside the first pipe 27, and the cooling air flows inwardly. The second pipe 29 having the first pipe 27 flows downward, and at the same time, heat exchange is performed between the cooling gas and the sample gas, thereby cooling the sample gas. Therefore, in the area where the first pipe 27 is arranged inside the second pipe 29 and the second pipe 28 is arranged inside the first pipe 27 and extends in the vertical direction, the sample gas and cooling gas system are distributed over the entire length in the vertical direction. Flows in the up and down direction, simultaneously, effectively exchanging heat between the sample gas and the cooling gas. Thereby, the cooling efficiency of the sample gas can be improved, and the water separation ability can be improved. In addition, according to the moisture separator 7 , the moisture separated from the sample gas can be easily recovered and the moisture-separated sample gas can be efficiently guided, similarly to the moisture separator 1 of the first embodiment.

Therefore, according to the seventh embodiment, the water separator 7 can be provided, which can suppress the increase in equipment cost and installation space, and can improve the cooling efficiency of the sample gas to realize the improvement of the water separation ability, and can be easily recovered. moisture and guides the sample gas efficiently.

In addition, in the water separator 7, two second pipes (28, 29) are provided, and a part of one second pipe 28 is arranged inside the first pipe 27, and the other second pipe 29 is arranged inside the first pipe 27. A part of the first piping 27 . In addition, in the water separator 7, the sample gas flows downward in the first pipe 27, the cooling air flows downward in the second pipe 28 arranged inside the first pipe 27, and the cooling air flows in the inner side. The second pipe 29 in which the first pipe 27 is arranged flows downward, and at the same time, heat exchange is performed between the cooling gas and the sample gas, thereby cooling the sample gas. Therefore, the sample gas flowing through the first pipe 27 is cooled from both sides such as the inside and the outside of the first pipe 27 . Thereby, according to the moisture separator 7 , heat exchange can be more effectively performed between the cooling gas and the sample gas, so the cooling efficiency of the sample gas can be further improved, and the moisture separation capability can be improved.

[modified example] As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, It can change and implement variously within the range described in the claim. For example, the following modified examples can be implemented.

In the above-mentioned embodiment, the application to the system for separating water from the sample gas collected from the exhaust gas generated in the heat treatment device and supplying it to the analyzer has been described as an example. However, the above-mentioned embodiment The moisture separator is not limited to this example, and can be widely used. For example, the moisture separator of the above-mentioned embodiment can also be applied to a system that collects a sample gas from the gas generated when the object to be processed is processed other than heat treatment, separates moisture, and supplies the sample gas from which moisture has been separated to To the supply destination such as analyzers. In addition, the moisture separator of the above-mentioned embodiment can also be applied to a system that collects sample gas from gas generated by various gas generation sources, separates moisture, and supplies the sample gas from which moisture is separated to an analyzer or analyzer. Various supply destinations other than the meter.

In the above-mentioned embodiment, the form in which the cooling gas is introduced into the water separator from the air cooler that generates low-temperature air as the cooling gas by supplying compressed air is described as an example, but this mode may not be the case. That is, an aspect may be implemented in which the cooling gas is introduced into the water separator from a cooling gas supply source other than the air cooler. For example, it is also possible to implement a mode in which a cooling gas is introduced into the water separator from a cooling gas supply source having a gas cylinder storing liquid nitrogen and continuously reducing the pressure of a part of the liquid nitrogen. Released from the gas cylinder, thereby generating low-temperature nitrogen and supplying it as cooling gas.

In the above-mentioned first to fourth embodiments, the outlet chamber has been described as an example in which the outlet chamber is provided integrally with the second pipe on the lower end side of the second pipe, but this may not be the case. For example, in the first to fourth embodiments, it is also possible to implement the water separator of the following form: the outlet chamber is provided separately from the second pipe under the second pipe, and is separated from the outside area, and the first pipe, sample The air guiding part and the water recovery chamber are connected.

In the above-mentioned third to seventh embodiments, the configuration of the water separator in which the cooling gas flows downward through the second pipe has been described as an example, but this configuration may not be necessary. In the third to seventh embodiments, it is also possible to implement an aspect configured as a moisture separator in which the cooling gas flows upward through the second pipe. (industrial availability)

The present invention can be widely used as a moisture separator for separating moisture from sample gas containing moisture.

1, 2, 3, 3a, 3b, 4, 5, 6, 7: Moisture separation device 11, 21, 22, 27: 1st piping 11a, 22a, 27a: outlet side opening 12, 23, 28, 29: 2nd piping 12a: Tube body 12b: Upper cover 12c: Lower cover 13:Exit room 14: Moisture recovery room 14a: Outlet 14b: drain pipe 15: Sample gas guide part (sample gas connection part) 16: Support frame 17a: Cooling gas inlet pipe 17b: Cooling gas discharge pipe 18: Exit chamber body 18a: side wall 18b: bottom wall (bottom wall part) 19: connecting pipe 23a: Upper and lower piping parts 23b: Horizontal piping section 24: Large diameter pipe department 24a: Large diameter pipe body part 24b: upper cover 24c: Lower cover 25: Small diameter tube 26: Sample gas introduction tube 28a: Upper and lower piping parts 28b: Horizontal piping section 30: Large diameter pipe part 31: Small diameter tube 32: Sample gas introduction tube 33: Upper cover component 34: Bottom cover member 35a: Cooling gas inlet pipe 35b: Cooling gas discharge pipe 100: heat treatment device 101: Analyzer 102: Heat treatment chamber 102a: Entrance 102b: Export 103: heater 104: Superheated steam generating device 105:Exhaust system 106: Combustion device 107a: Exhaust system 107b: Sampling system 107c: connector 108: Analyzer supply system 109: Air cooler 109a: One end (of the air cooler) 109b: (of the air cooler) the other end 110: Compressed air supply source 111: Compressed air supply system 112: Connecting piping Wa: water X1~X3: point

Fig. 1 is a diagram schematically showing a system in which a sample gas is collected from a gas generated by a heat treatment device, moisture is separated from the sample gas in a moisture separator, and the sample gas from which moisture has been separated is sent to Analyzer supply. Fig. 2 is a diagram showing a water separator and an air cooler for supplying cooling gas to the water separator according to the first embodiment of the present invention. Fig. 3 is a diagram showing a water separator according to a first embodiment of the present invention. Fig. 4 is a graph showing the relationship between the amount of saturated water vapor and the temperature, and is a graph for explaining the moisture separated from the sample gas. Fig. 5 is a diagram showing a water separator according to a second embodiment of the present invention. Fig. 6 is a diagram showing a water separator according to a third embodiment of the present invention. Fig. 7(A) is a diagram showing a cross section of a water separator according to a third embodiment, and it is a diagram showing a cross section viewed from the position indicated by the arrow on line A-A in Fig. 6 . Fig. 7(B) is a diagram showing a cross section of a water separator according to a modified example of the third embodiment. Fig. 7(C) is a diagram showing a cross-section of a water separator according to another modified example of the third embodiment. Fig. 8 is a diagram showing a water separator according to a fourth embodiment of the present invention. Fig. 9 is a diagram showing a water separator according to a fifth embodiment of the present invention. Fig. 10 is a diagram showing a water separator according to a sixth embodiment of the present invention. Fig. 11 is a diagram showing a water separator according to a seventh embodiment of the present invention. Fig. 12 is a diagram showing a cross section of a water separator according to a seventh embodiment, which is a diagram showing a cross section viewed from the position of the arrow B-B in Fig. 11 .

1: Moisture separation device

11: 1st piping

11a: Outlet side opening

12: Second piping

12a: Tube body

12b: Upper cover

12c: Lower cover

13:Exit room

14: Moisture recovery room

14a: Outlet

14b: drain pipe

15: Sample gas guide part (sample gas connection part)

16: Support frame

17a: Cooling gas inlet pipe

17b: Cooling gas discharge pipe

18: Exit chamber body

18a: side wall

18b: bottom wall (bottom wall part)

19: connecting pipe

108: Analyzer supply system

Wa: water

Claims (6)

A moisture separator comprising: a first pipe into which a sample gas containing moisture is introduced, and the sample gas flows downward; and a second pipe at least partly arranged inside or inside the first pipe. At least a part of the above-mentioned first piping is arranged, which is introduced with a cooling gas having a temperature lower than that of the above-mentioned sample gas, and the above-mentioned cooling gas flows upward or downward; an outlet chamber, wherein the lower end of the above-mentioned first piping is opened, and the above-mentioned sample gas The gas is introduced from the above-mentioned first pipe, and the above-mentioned water separated from the above-mentioned sample gas drips from the above-mentioned lower end; the water recovery chamber communicates with the above-mentioned outlet chamber and is arranged below the above-mentioned outlet chamber to recover the separated moisture; and a sample gas guide part, which communicates with the outlet chamber and guides the sample gas flowing out into the outlet chamber; , in its interior, the lower end of the first piping is open, and it communicates with the sample gas guide; and a communication pipe portion, which extends downward from the lower end of the outlet chamber main body, and opens to the water recovery chamber The above-mentioned moisture recovery chamber is configured to store water, and the lower end of the above-mentioned communication pipe portion is configured to open in the above-mentioned moisture recovery chamber below the water surface of the water stored in the above-mentioned moisture recovery chamber. The water separator according to claim 1, wherein the first piping and the second piping are arranged to extend up and down in a straight line, and the cooling gas system is along a direction parallel to the flow direction of the sample gas in the first piping. direction and flow in the above-mentioned second piping. The water separator according to claim 2, wherein the first piping is arranged in a state of being inserted into the second piping. The water separator according to claim 2, wherein the first piping and the second piping are double pipes arranged concentrically so that their central axes coincide. The water separator according to claim 2, wherein the cooling gas flows downward in the second pipe in a direction parallel to and identical to the flow direction of the sample gas. The water separator according to any one of Claims 1 to 5, wherein, in the lower end portion of the first piping, the outlet-side opening of the outlet chamber opening is arranged at a position that communicates with the outlet of the sample gas guide. The chamber is located further down.

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