JPH0751145B2 - Micro bubble carbonated spring manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is a method in which a gas is dissolved under pressure in a liquid, and the liquid is depressurized to generate fine bubbles, and carbon dioxide is added as a gas to water which is a liquid. The present invention relates to a fine bubble carbonated spring manufacturing apparatus capable of manufacturing a carbonated spring by melting under pressure.

[Prior Art] Conventionally, when a carbonated spring is manufactured, a tablet (sodium hydrogen carbonate and citric acid, etc.) that chemically generates carbon dioxide is placed in hot and cold water in the bathtub, and carbon dioxide is used in the bathtub. There were things such as bubbling and dissolving in hot water inside, but when trying to make a high-concentration carbonated spring, it was necessary to put a large amount of tablets with the former method of chemical substances, and there was a cost problem. It was Also, with this method,
The carbon dioxide that could not be dissolved in the hot and cold water bubbled away from the surface of the water and escaped, and it was only possible to raise the concentration to a certain degree. There was a risk of suffocation, etc.

Even in the latter method, the concentration can be increased to some extent by bubbling over time, but the concentration cannot be increased further. The amount that escapes is greater than the amount that dissolves, which is economically problematic.As with the former case, the concentration becomes high and the substance escapes from the surface of hot water.If the amount that escapes is large, suffocation occurs in a small bathroom. There was a danger of.

Therefore, as a method of dissolving carbon dioxide under pressure in hot water, there is a method as shown in FIG.

This one has a pipe line 4 formed between a suction port 2 and a jet port 3 provided in a bathtub 10, and a pressure pump 11 provided in the pipe line 4
Carbon dioxide is supplied from the supply pipeline 20 to the hot and cold water 1a in the pipeline 4 that has been sucked in through the suction port 2 to dissolve the carbon dioxide in the hot and cold water 1a, and the carbon dioxide spring is again jetted into the bathtub 10 from the jet outlet 3. Is to do. This device will be described in detail. When the pressurizing pump 11 is turned on, the suction port 2 provided in the bathtub 10
The hot and cold water 1a in the bathtub 10 which is the liquid 1 is sucked in through the conduit 4 from the inside. Reference numeral 20 is a supply pipe line for supplying carbon dioxide communicated with the pipe line 4. Then, at the same time as the switch of the pressurizing pump 11 is turned on, the electromagnetic valve 20a is opened and carbon dioxide as a gas is supplied into the supply pipeline 20. And a pressure pump
In the gas-liquid mixing section 21, the supply pipe 20 has a negative pressure due to the flow velocity due to the suction of the liquid 1 in 11, so that carbon dioxide is mixed with the hot water 1a in the pipe 4 sucked into the pipe 4. The liquid 1 mixed with the gas in the gas-liquid mixing section 21 is dissolved in the liquid 1 by the gas pressurized by the pressure pump 11. At this time, in order to increase the dissolution efficiency in the pressure pump 11, it is necessary to supply an excessive amount of gas with respect to the amount of gas actually dissolved in the liquid 1, and even if the pressure pump 11 pressurizes a large amount. There are undissolved gases. Therefore, an accumulator 6 is provided in the pipe line 4 located below the water of the pressurizing pump 11, and the surplus gas (undissolved gas) is separated by the accumulator 6 and exhausted from the exhaust throttle valve 6a. . The exhaust throttle valve 6a adjusts the exhaust amount while keeping the pressure of the accumulator 6 constant.
Then, the liquid 1 in which the gas in which the surplus gas is not mixed is dissolved is ejected as a carbonated spring into the bath 10 through the ejection port 3.

[Problems to be Solved by the Invention] However, a carbonated spring having a much higher concentration than the above two methods can be obtained by the above-mentioned method, but when jetted into the hot and cold water 1a in the bathtub 10, the hot and cold water 1a is pressurized. The carbon dioxide dissolved therein is jetted into the bathtub 10 so that the pressure is released all at once from the pressurized state, and the carbon dioxide that has been decompressed and melted into large bubbles rapidly becomes the water surface. There was a problem that it surfaced up and escaped.

In addition, all carbonated springs are colorless and transparent, and can be used in ordinary bathtubs 10
There was no difference in appearance from the hot water inside, and the impression given to the bather was poor.

Furthermore, since the solubility of air and carbon dioxide in hot and cold water 1a is different, there is a difference in the setting of pressure and water flow rate when making carbonated spring by pressure dissolution of carbon dioxide and when making fine bubbles by pressure dissolution of air. However, it was difficult to make with the same device (same nozzle). Therefore, there is no one that can switch the both and arbitrarily eject the carbonated spring and the fine bubbles even though the same method of pressure dissolution is used.

The present invention is intended to solve the above problems, and an object thereof is to efficiently dissolve air, which is a gas, and carbon dioxide in a liquid to produce a high-concentration carbonated spring and fine bubbles. It is to provide a micro bubble carbonated spring manufacturing device.

[Means for Solving the Problems] In order to achieve the above object, the apparatus for producing a fine bubble carbonated spring according to the present invention dissolves a gas in the liquid 1 by mixing and pressurizing the gas and the liquid 1, and then the liquid 1 In the fine bubble generator for precipitating fine bubbles by depressurizing again, carbon dioxide, which is a gas, is supplied to the conduit 4 provided between the suction port 2 for sucking the liquid 1 and the jet port 3 for jetting the liquid 1. And a supply unit 5 for supplying air, and an accumulator 6 provided below the supply unit 5 provided in the pipe line 4 below the supply unit 5. A pressure pump 11 is provided between the accumulator 6 and the supply unit 5.
Is provided.

In addition, a supply unit 5 is formed by a mixing pipe line 7 that is in communication with the pipe line 4 and that supplies carbon dioxide and air that are gases, and a mixing unit 8 that mixes carbon dioxide and air in advance in the mixing pipe line 7. It may be provided.

Further, an air pipeline 9 for supplying only air may be connected between the mixing section 8 provided in the mixing pipeline 7 and the connecting portion connected to the pipeline 4.

Further, the ratio of carbon dioxide in the gas in which carbon dioxide and air are mixed may be 10% to 50%.

[Operation] Gas is mixed with the liquid 1 in the supply unit 5. Liquid 1 here
Not only carbon dioxide but also air is mixed as a gas to be mixed with, and carbon dioxide is dissolved under pressure in the liquid 1 together with air. Then, the excess gas that cannot be completely dissolved is separated by the accumulator 6 and exhausted.

[Examples] The present invention will be described in detail below based on illustrated examples.

In the illustrated embodiment, an embodiment in which a fine gaseous carbonated spring is jetted into the bath 10 is shown. Reference numeral 10 denotes a bathtub, and an inner wall of the bathtub 10 is provided with a suction port 2 for sucking hot and cold water in the bathtub 10, and hot and cold water 1a sucked from the suction port 2 is jetted from a jet port 3. . 4 is a suction port 2
And a jet pipe 3 extending between the jet port 3 and a pressurizing pump 11 capable of sucking the hot and cold water 1a in the bathtub 10 from the suction port 2 and ejecting it from the jet port 3 to the pipe line 4. It is arranged. Pipe line 4 located between the pressure pump 11 and the suction port 2
Is provided with a supply unit 5 for supplying carbon dioxide as a gas and air. The supply unit 5 is composed of a carbon dioxide supply pipe 5a to which carbon dioxide is supplied and an air supply pipe 5b to which air is supplied, each of which is connected to the pipe line 4 by a connecting pipe 12, and an electromagnetic valve. Air intake port 5b ″ through 5a ′, 5b ′,
Carbon dioxide or air can be sucked from the carbon dioxide inlet 5a ″ and supplied to the conduit 4.
Is an accumulator installed in the pipe line 4 located under the pressure pump 11.

Then, when the pressurizing pump 11 is switched on, the hot and cold water 1a in the bath 10 which is the liquid 1 is sucked into the pipe line 4 through the suction port 2. At this time, the solenoid valves 5a ', 5b' provided in the carbon dioxide supply pipe 5a and the air supply pipe 5b are opened in conjunction with the switching on of the pressurizing pump 10. Then, the carbon dioxide supply pipe 5a and the air supply pipe 5b have a negative pressure than the pipe line 4 due to the flow velocity of the liquid 1 due to the suction, and the air and carbon dioxide are sucked into the pipe line 4 from the supply unit 5 by the ejector effect. The hot water 1a is mixed and pressurized by the pressure pump 11, and carbon dioxide and air are dissolved under pressure in the hot water 1a. At this time, in order to increase the dissolution efficiency of air and carbon dioxide by the pressurizing pump 11, it is necessary to supply an excessive amount of gas with respect to the amount of gas actually dissolved, and the pressurizing pump 11 pressurizes the gas. However, there is a large amount of undissolved gas. Therefore, the excess gas is separated by the accumulator 6 and exhausted from the throttle valve 6a connected to the accumulator 6. At this time, the throttle valve
6a is designed to keep the pressure in the accumulator 6 constant by adjusting the exhaust amount so that the liquid 1 mixed with gas is not depressurized in the accumulator 6. In other words, the hot and cold water 1a in which air and carbon dioxide are dissolved is sent to the jet port 3 through the pipe line 4 while being pressurized, but during this process, when passing through the accumulator 6, 6 has a general function of absorbing the pulsation of the hot water 1a and absorbing impact pressure, and promotes the dissolution of air and carbon dioxide that could not be completely dissolved by the pressurization in the pressure pump 11. The excess gas mixed in the hot and cold water 1a without being dissolved is still stored in the accumulator 6
It acts to separate the surplus gas from the hot and cold water 1a by floating above it. The hot and cold water 1a that has passed through the accumulator 6 is in a state in which air and carbon dioxide, which are gases at a high concentration, are dissolved, and the hot and cold water 1a in which the gas is dissolved at a high concentration is again injected into the bathtub 10 from the jet port 3. It is something that is ejected. And hot and cold water in which gas is dissolved from the jet port 3
When 1a is ejected into the bathtub 10, hot water 1a in which gas is dissolved
The pressure is released all at once from the pressurized state, so that the air dissolved in the hot and cold water 1a is deposited and fine bubbles are generated in the hot and cold water 1a in the bath 10. Then, carbon dioxide is mixed with these fine bubbles, and conventionally, when carbon dioxide dissolved under pressure is decompressed, it is prevented from becoming large bubbles and rapidly rising toward the water surface. It floats in hot and cold water 1a together with the slow-moving fine bubbles and can be re-dissolved with high efficiency by utilizing the large gas-liquid contact area of the fine bubbles. As for the supply ratio of air and carbon dioxide, the larger the amount of air, the larger the amount of fine bubbles generated, and the larger the amount of carbon dioxide, the finer bubbles are deposited. further,
If a large amount of carbon dioxide is supplied, large bubbles will precipitate, so it is advisable to adjust the ratio according to the purpose and application. For example, by setting the ratio of carbon dioxide in the gas to 10% to 50%, carbon dioxide can be made to exist in hot and cold water with a certain amount of fine bubbles precipitating.
At a carbon dioxide concentration of 20% to 30%, it is possible to deposit fine bubbles, which is almost the same as the case of 100% air.

FIG. 2 shows another embodiment of the present invention.
And a mixing section 7 for supplying carbon dioxide and air, which are gases, is provided with a mixing section 8 for premixing carbon dioxide and air. The air supplied to the passage 4 and carbon dioxide are mixed in advance to form a gas having a certain mixing ratio and mixed with the liquid 1. If the premixing is performed in this way, it is not necessary to adjust the flow rate of individual gas, which is difficult, and the ratio of air and carbon dioxide can be adjusted smoothly. If a main valve is provided in the mixing pipeline 7, the opening of the main valve can be adjusted by adjusting even the ratio of the air supplied from the air supply pipe 5b to the carbon dioxide supplied from the carbon dioxide supply pipe 5a. The required flow rate of gas can be freely controlled by. Further, if the above-mentioned configuration is adopted, it is possible to save piping and parts, and it is possible to provide a device having a simple structure in terms of system.

FIG. 3 shows still another embodiment of the present invention,
In this structure, an air pipeline 9 for supplying only air is made to communicate between the mixing section 8 provided in the mixing pipeline 7 and a connecting portion connected to the pipeline 4. It is possible to deposit only fine bubbles by supplying air from only, and it is possible to manufacture fine bubble carbonated springs by supplying air and carbon dioxide through the mixing section 8, and to switch each pipeline. With this, it is possible to arbitrarily select the jet of the fine bubble carbonated spring and the jet of only the fine bubbles. Explaining in detail the operation state when ejecting the fine bubble carbonated spring from the jet outlet 3, the carbon dioxide sucked from the carbon dioxide inlet 5a ″ is throttled to an appropriate amount by the solenoid valve 5a ′ provided in the carbon dioxide supply pipe 5a. , Is sent to the mixing section 8 for mixing air and carbon dioxide, while the air is sucked from the air inlet 9b ″ and sent to the mixing section 8 where the air and carbon dioxide are mixed. At this time, the solenoid valve 9a provided in the air conduit 9 is closed. Then, a gas in which carbon dioxide and air are mixed at an appropriate ratio is mixed with the liquid 1 in the pipe 4 through the mixing pipe 7.
Then, finely bubbled carbonated spring is produced by supplying and melting under pressure. When making fine bubbles, the solenoid valve 9a provided in the air pipeline 9 is opened with the solenoid valves 5a 'and 5b' of the carbon dioxide supply pipe 5a and the air supply pipe 5b closed to open the air intake port.
By inhaling air from 9a 'and dissolving only air in the liquid 1 under pressure, only fine bubbles can be produced. In this way, both the fine bubbles and the fine bubble carbonated springs can be ejected with one device, even if the carbon dioxide is dissolved by mixing the air with the carbon dioxide, only the air is mixed with the air. This is because it can be close to the dissolution characteristic at the time of, and can be a value close to the gas condition for precipitating fine bubbles only with air. Therefore, the fine bubble carbonated spring and the fine bubbles can be arbitrarily selected only by switching the intake air.

[Advantages of the Invention] As described above, according to the present invention, a supply unit for supplying carbon dioxide and air, which is a gas, is provided in a pipe line provided between an inlet for sucking a liquid and an outlet for ejecting a liquid. Therefore, not only carbon dioxide but also air is mixed as a gas to be mixed with the liquid, and carbon dioxide is dissolved under pressure in the liquid together with air, so when the pressure of the liquid is reduced, it is dissolved under pressure in the liquid. Fine air bubbles will be generated by the air and can be ejected as fine bubbles. By forming fine bubbles, the bubble contact area will increase and the dissolution efficiency will increase. Since a large amount of carbon dioxide that has escaped is ejected together with the fine bubbles with a slow rising speed, it is possible to give a sufficient dissolution time, which enables efficient dissolution and improves economic efficiency. Wear. In addition, carbon dioxide has a small amount of escape from the surface of the water by being ejected together with fine bubbles formed by the air, and there is no risk of suffocation even if you take a bath while driving. In addition to the heat retention effect and the fatigue recovery effect, the massage effect due to the fine bubbles can be expected. Furthermore, the carbonated spring alone is no different from an ordinary colorless and transparent bath, but it can be visually changed by the generation of fine bubbles. Further, since the accumulator is provided below the supply unit provided in the pipeline, the surplus gas is exhausted by the accumulator and the concentration of the dissolved gas in the liquid can be increased.

Further, according to the second aspect of the invention, a supply section is formed by a mixing conduit that is connected to the conduit and supplies carbon dioxide and air that are gases, and the carbon dioxide and the air are supplied to the mixing conduit. Since the mixing part for mixing in advance is provided, it is possible to smoothly adjust the mixing ratio of both gases without the need for adjusting the flow rate of individual gas which is difficult due to the mixing part.

Further, according to the third aspect, the air pipeline for supplying only air is communicated between the mixing section provided in the supply pipeline and the connecting portion connected to the pipeline. ,
By supplying only air through the air pipeline, it is possible to eject only fine bubbles. Also, by shutting off the air pipeline and supplying air and carbon dioxide from the mixing section, a fine bubble carbonated spring is ejected. It is possible to select any of the fine bubble carbonated spring and the fine bubbles by switching with one device.

Further, when the ratio of carbon dioxide in the gas in which carbon dioxide and air are mixed is set to 10% to 50% as in the case of claim 4, it seems that almost only gas is air and only air is in the liquid. It is possible to generate fine bubbles just as in the case of dissolving under pressure.

[Brief description of drawings]

FIG. 1 is a system diagram of an embodiment of the present invention, FIG. 2 is a system diagram of another embodiment of the above, FIG. 3 is a system diagram of another embodiment of the above, and FIG. In the system diagram, 1 is a liquid, 2 is a suction port, 3 is a jet port, 4 is a pipe line,
Reference numeral 5 is a supply unit, 6 is an accumulator, 7 is a mixing pipeline, 8 is a mixing section, and 9 is an air pipeline.

Claims (4)

[Claims] 1. A fine bubble generating apparatus for precipitating fine bubbles by mixing a gas and a liquid and pressurizing the liquid to dissolve the gas in the liquid and depressurizing the liquid again.
A supply unit for supplying carbon dioxide and air, which is a gas, is provided in a pipeline provided between a suction port for sucking the liquid and a jet outlet for jetting the liquid, and the water is below the supply unit provided in the pipeline. An apparatus for producing fine bubble carbonated spring, characterized in that an accumulator is provided on the side and a pressure pump is provided between the accumulator and the supply section. 2. A supply section is formed by a mixing pipeline which is inserted into the pipeline and supplies carbon dioxide and air which are gases, and a mixing section for premixing carbon dioxide and air is provided in this mixing pipeline. The fine bubble carbonated spring manufacturing apparatus according to claim 1, wherein 3. An air pipeline for supplying only air is made to communicate between a mixing section provided in the mixing pipeline and a connecting portion formed in the pipeline. Item 2. A device for producing a fine bubble carbonated spring according to the item. 4. The apparatus for producing a fine bubble carbonated spring according to claim 1, wherein the ratio of carbon dioxide in the gas obtained by mixing carbon dioxide and air is 10% to 50%.