CN109668758B - Automatic sampling device of boiler quality of water - Google Patents
Automatic sampling device of boiler quality of water Download PDFInfo
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- CN109668758B CN109668758B CN201910151010.8A CN201910151010A CN109668758B CN 109668758 B CN109668758 B CN 109668758B CN 201910151010 A CN201910151010 A CN 201910151010A CN 109668758 B CN109668758 B CN 109668758B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 238000005070 sampling Methods 0.000 title claims abstract description 71
- 238000003825 pressing Methods 0.000 claims abstract description 20
- 230000009471 action Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- -1 pH value Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides an automatic boiler water quality sampling device, which effectively solves the problems of time and labor waste, inconvenient operation and low efficiency in the existing boiler sampling process; the technical scheme includes that the device comprises a flat plate, a rectangular box is arranged below the flat plate, a container is arranged below the rectangular box, a connecting plate is arranged in the rectangular box, a connecting rod is arranged below the connecting plate, a first U-shaped pipe is arranged in the rectangular box, a second U-shaped pipe is arranged in the container, a pull rod is arranged on the connecting plate, a bottle storage box is arranged at the front end of the rectangular box, a strip box is arranged on the rectangular box, a pressing plate is arranged in the strip box, a sampling bottle is arranged in the strip box, a through hole is formed in the front end of the strip box, a valve is arranged on the flat plate, a first pipeline is arranged at one water outlet of the valve, a second pipeline is connected; the automatic sampling device has the advantages of ingenious structure, effective improvement of the automation degree of boiler sampling, simple and convenient operation, reduction of manpower labor, realization of automatic sampling in each period of time, reliable recovery performance of water flowing out during sampling and strong adaptability.
Description
Technical Field
The invention relates to the field of boiler water quality detection, in particular to an automatic boiler water quality sampling device.
Background
The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, and the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy.
The standard requirement of boiler feed water quality is as follows: hardness, dissolved oxygen, pH value, oil content, carbon dioxide content, salt content, ammonia content, copper content and iron content must be qualified, and the water quality is clear. The quality of water in the boiler is good and bad, and the boiler has close relation to the safe and economic operation of the boiler. After a long time, impurities in water are accumulated in the boiler, the water quality in the boiler is deteriorated, water scales are formed on a heating surface, the heat transfer effect is influenced, fuel is wasted, local overheating is caused, the expansion phenomenon appears in serious conditions, the pipe is blocked, accidents are caused, and even boiler explosion is caused. Various impurities in the boiler (including gas and the like) can cause metal corrosion and shorten the service life of the boiler, and excessive impurities can influence the quality of steam, so that steam and water are carried by the steam to generate steam-water co-boiling. Therefore, the enhancement of the water quality treatment and sampling detection work in the boiler is an important link for ensuring the safe and economic operation of the boiler.
The steam quality refers to the degree of purity of the steam. Usually expressed in terms of the problem of impurities contained in the steam per unit mass. The impurities in the steam are various salts, alkalis and oxides, the main part of the impurities is salts, so the carrying of the impurities by the steam is often called steam-carried salt. The more salt content the steam, the worse the steam quality. The utility boiler therefore has relevant regulatory requirements for both the quality of saturated steam and the quality of superheated steam.
The existing detection to quality of water and steam in the boiler all adopts artifical sample, adopt concrete method to be, at every a period, open the special sample valve of predetermineeing on the boiler, carry out decompression, cooling with the water in the stove or the steam that emerges first, and form low temperature rivers, according to trade sample operation standard, need smooth three to five minutes back of flowing, then can take a sample, guarantee the sample to have the representativeness in the at utmost, close the sample valve at last, this sample is accomplished, after a period again, when needing to take a sample again, the repetitive operation again carries out above-mentioned operation.
In the process, a specially-assigned person is required to operate, the smooth flow is required to be waited for three to five minutes every time, the smooth flow is smooth and stable, but in practical operation, when a sampling valve is always just opened, steam is usually mixed in the water flow to intermittently flow out, the water flow is unstable, the smooth flow requirement can be met after a period of time, and therefore the waiting time required before sampling is far longer than three to five minutes every time, and time and labor are wasted.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the automatic boiler water quality sampling device, which effectively solves the problems that the sampling process of the existing boiler wastes time and labor, is inconvenient to operate, has low efficiency and high labor cost, and water resources are lost or even the environment is influenced during each sampling.
The technical scheme includes that the device comprises a flat plate which is horizontally fixed, a vertical and detachable rectangular box is arranged below the flat plate, a space is formed between the flat plate and the rectangular box, a container which is provided with an opening at the upper end and can move up and down is arranged below the rectangular box, a plurality of tension springs are connected between the lower end of the rectangular box and the upper end of the container, a horizontal connecting plate is arranged at the upper end in the rectangular box cavity, a plurality of vertical connecting rods are fixed on the lower end surface of each connecting plate, the lower ends of the connecting rods penetrate through the lower side plate of the rectangular box and are fixed with the container, a first U-shaped pipe with a downward opening is fixed at the lower end in the rectangular box cavity, the lower end of the right part of the first U-shaped pipe penetrates through the lower side plate of the rectangular box and is arranged below the rectangular box, a second U-shaped pipe with a downward;
the upper end of the connecting plate is fixedly provided with a vertical pull rod, the upper end of the pull rod penetrates through an upper side plate of the rectangular box and is arranged above the rectangular box, a bottle storage box with an upward opening is fixed on the front end surface of the rectangular box, a strip box with an upward opening is arranged on the upper end surface of the rectangular box, a pressing plate capable of moving back and forth in the strip box is arranged at the rear end in a cavity of the strip box, a pressure spring is connected between the pressing plate and the rear side plate of the strip box, a plurality of sampling bottles with upward openings and uniformly distributed along the front-rear direction are arranged in the strip box, the front end of the strip box is arranged right above the bottle storage box, a through hole is formed in the lower side of the front end of the strip box, and when the pull rod; be fixed with two three-way valve on the dull and stereotyped up end, a delivery port of valve is connected with first pipeline, the first pipeline other end run through rectangle case lateral wall and with rectangle case intracavity intercommunication, another delivery port of valve is connected with the second pipeline, the second pipeline other end runs through dull and stereotyped and arranges the sampling bottle in the forefront directly over, the valve rod lower extreme in the valve runs through dull and stereotypedly and is connected with the pull rod upper end, the opening or closing of the first pipeline of up-and-down control of valve rod and second pipeline.
The automatic sampling device has the advantages of ingenious structure, effective improvement of the automation degree of boiler sampling, simple and convenient operation, reduction of human labor, realization of automatic sampling in each period of time, recovery of water flowing out during sampling, reduction of water resource waste, environmental protection, reliable performance, guarantee of the quality of samples and strong adaptability.
Drawings
FIG. 1 is a front cross-sectional view of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 is a schematic connection diagram of parts of the present invention.
Fig. 4 is a state diagram of the bottle storage box, the support plate and the sampling bottle therein in the present invention.
FIG. 5 is a schematic view showing the connection relationship between the sampling bottle, the strip box and the pressing plate in the present invention.
Fig. 6 is a schematic structural view of the sliver can of the present invention.
Detailed Description
The following description will explain embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 6, the container comprises a flat plate 1 fixed horizontally, a rectangular box 2 which is vertical and detachable is arranged below the flat plate 1, a space is arranged between the flat plate 1 and the rectangular box 2, a container 3 which is opened at the upper end and can move up and down is arranged below the rectangular box 2, a plurality of tension springs are connected between the lower end of the rectangular box 2 and the upper end of the container 3, a horizontal connecting plate 4 is arranged at the upper end in a cavity of the rectangular box 2, a plurality of vertical connecting rods 5 are fixed on the lower end surface of the connecting plate 4, the lower end of each connecting rod 5 penetrates through the lower side plate of the rectangular box 2 and is fixed with the container 3, a first U-shaped pipe 6 with a downward opening is fixed at the lower end in the cavity of the rectangular box 2, the lower end of the right side part of the first U-shaped pipe 6 penetrates through the lower side plate of the rectangular box 2 and is arranged below the rectangular box 2, a second U-shaped pipe 7 with a downward opening is;
a vertical pull rod is fixed at the upper end of the connecting plate 4, the upper end of the pull rod penetrates through the upper side plate of the rectangular box 2 and is arranged above the rectangular box 2, a bottle storage box 8 with an upward opening is fixed on the front end surface of the rectangular box 2, a strip box 9 with an upward opening is arranged on the upper end surface of the rectangular box 2, a pressing plate 10 capable of moving back and forth in the strip box 9 is arranged at the rear end in the cavity of the strip box 9, a pressure spring is connected between the pressing plate 10 and the rear side plate of the strip box 9, a plurality of sampling bottles 11 with upward openings and uniformly distributed in the front and rear directions are arranged in the strip box 9, the front end of the strip box 9 is arranged right above the bottle storage box 8, a through hole is formed in the lower side of the front end of the strip box 9, and when the pull rod moves downwards, the; two three-way valve 12 are fixed with on dull and stereotyped 1 up end, a delivery port of valve 12 is connected with first pipeline 13, the first pipeline 13 other end run through 2 lateral walls of rectangle case and with 2 intracavity intercommunications of rectangle case, another delivery port of valve 12 is connected with second pipeline 14, the second pipeline 14 other end runs through dull and stereotyped 1 and arranges in directly over sampling bottle 11 in the forefront, the valve rod lower extreme in the valve 12 runs through dull and stereotyped 1 and is connected with the pull rod upper end, the opening or closing of the first pipeline 13 of up-and-down motion control and second pipeline 14 of valve rod.
The water inlet of the valve 12 is communicated with the cooled boiler water, when the connecting plate 4 is positioned above, the water flows into the rectangular box 2 through the first pipeline 13, the first U-shaped pipe 6 does not pump water, when the water level in the rectangular box 2 is higher than the upper end of the first U-shaped pipe 6, according to the siphon effect, the water flows through the first U-shaped pipe 6 and rapidly flows into the container 3, the container 3 moves downwards under the action of gravity, the container 3 drives the connecting plate 4 to move downwards through the connecting rod 5, the connecting plate 4 drives the valve rod to move downwards through the pull rod, at the moment, the first pipeline 13 is closed, the second pipeline 14 is opened, the water flows into the sampling bottle 11 at the foremost side through the second pipeline 14, the sampling bottle 11 enters the bottle storage box 8, when the water level in the container 3 is higher than the upper end of the second U-shaped pipe 7, the water in the container 3 flows downwards through the second U-shaped pipe 7, the water in the container 3 is gradually reduced, the container, the container 3 drives the connecting plate 4 to move upwards through the connecting rod 5, the connecting plate 4 drives the pull rod to move upwards, the valve rod is restored to the original state at the moment, the first pipeline 13 is opened, the second pipeline 14 is closed, the pull rod moves upwards and drives the rotary table to rotate through the rotating block, and the next sampling bottle 11 is positioned under the second pipeline 14.
In order to realize dismantling of rectangle case 2, 2 upper end left and right sides of rectangle case all have a vertical riser 15, riser 15 upper end is fixed with flat board 1, there is the horizontally diaphragm one side that 15 lower extremes of riser are close to rectangle case 2, L column structure is constituteed with the diaphragm to riser 15, 2 upper end left and right sides of rectangle case all have the arch, on the diaphragm was arranged in to the arch for rectangle case 2 can slide around between two diaphragms.
In order to prevent the pull rod from damaging the valve rod in the up-and-down moving process, the pull rod comprises a vertical cylinder 16, the lower end of the cylinder 16 is fixed on the connecting plate 4, the upper end of the cylinder 16 is arranged above the rotating block, the rotating block is sleeved on the cylinder 16, an inserting rod 17 which is vertical and can slide up and down in the cylinder 16 is arranged in the cylinder 16, a tension spring is connected between the lower end of the inserting rod 17 and the lower end of the cylinder 16, and the upper end of the inserting rod 17 is connected with the lower end of the valve.
In order to realize the disassembly between the valve rod and the inserted rod 17, the upper end of the inserted rod 17 is connected with a threaded pipe through threads, the outer circular surface of the lower end of the valve rod is provided with threads, the threaded pipe is connected with the lower end of the valve rod through threads, and the inserted rod 17 is connected with the valve rod through threads.
In order to realize that the sampling bottle 11 at the foremost side can enter the bottle storage box 8 along with the downward movement of the pull rod, a press block 18 is arranged under the second pipeline 14, the press block 18 is fixed with a cylinder 16 through a fixing plate 19, when the cylinder 16 moves downward, the cylinder 16 drives the press block 18 to move downward through the fixing plate 19 and presses the sampling bottle 11 at the foremost side into the bottle storage box 8, through holes which correspond to the second pipeline 14 up and down are formed in the press block 18, water in the sampling bottle 11 can enter the second pipeline 14 through the through holes, when the cylinder 16 moves upward, the pull rod drives the press block 18 to move upward through the fixing plate 19, and the next sampling bottle 11 moves forward under the second pipeline 14 under the action of the press plate 10.
In order to prevent that sample bottle 11 from dropping to the bottom of storage bottle box 8 in the twinkling of an eye and causing the sample to reveal, storage bottle box 8 in have the backup pad 20 that the level form just can reciprocate, be connected with the pressure spring between backup pad 20 and the storage bottle box 8 lower side plate.
In order to prevent that the backup pad 20 from influencing the sample bottle 11 that will hold the sample next time of jack-up, the upper end of the board of the 8 left and right sides of storage bottle box have the pin that can control and move, pin one end is arranged in storage bottle box 8, the one end that the pin is in storage bottle box 8 is the inclined plane, the lower extreme on inclined plane is drawn close to storage bottle box 8 center, the pin other end runs through storage bottle box 8 curb plate and arranges the 8 outsides of storage bottle box in, the pin is arranged in one of the 8 outsides of storage bottle box and is served and have the annular arch, be connected with the extension spring between annular arch and the storage bottle box 8, the pin can prevent sample bottle 11 rebound.
In order to take out the sampling bottle 11 from the bottle storage box 8 conveniently, the left side plate and the right side plate of the bottle storage box 8 are provided with vertical notches.
In order to enable the first U-shaped pipe 6 to smoothly convey water in the rectangular box 2, a water storage box 21 with an opening at the upper end is fixed in the rectangular box 2, the left side of the water storage box 21 is fixed with the left side wall of the rectangular box 2, a space is formed between the right side plate of the water storage box 21 and the right side plate of the rectangular box 2, the water storage box 21 is positioned below the first pipeline 13, a through hole is formed in the lower side plate of the water storage box 21, a baffle is arranged at the upper end of the through hole and can seal the through hole, a vertical rod is arranged at the lower end of the baffle, the vertical rod penetrates through the lower side plate of the water storage box 21 through the through hole and is arranged below the water storage box; a hollow plastic floating ball 22 is fixed at the lower end of the vertical rod, and a pressure spring is connected between the floating ball 22 and the lower side plate of the water storage box 21.
In order to conveniently take all samples at one time, the bottle storage box 8 can be disassembled, a U-shaped plate 23 with an upward opening is fixed on the front end face of the rectangular box 2, the bottom end of the bottle storage box 8 is arranged in the cavity of the U-shaped plate 23, a vertical positioning plate 24 is arranged at the front end of the U-shaped plate 23, a plurality of jacks are formed in the lower side plate of the U-shaped plate 23, a plurality of pins in one-to-one correspondence with the jacks are arranged at the lower end of the positioning plate 24, the pins are inserted into the jacks, and the positioning plate 24 can prevent the bottle storage box 8 from falling off from.
It is worth noting that the lower end of the left side part of the first U-shaped pipe 6 is arranged in the rectangular box 2 and has a gap with the rectangular lower side plate, the lower end of the left side part of the second U-shaped pipe 7 is arranged in the rectangular box 2 and has a gap with the rectangular lower side plate, a plurality of sealing rings are arranged between the connecting rod 5 and the side wall of the rectangular box 2, a sealing ring is arranged between the connecting rod 5 and the side wall of the water storage box 21, and the connecting rod 5 can slide up and down on the lower side plate of the rectangular box 2 and the side wall; the distance between the water storage box 21 and the connecting plate 4 is larger than the up-and-down movement distance of the container 3; the lower end of the baffle can be made into a hemispherical bulge, the upper end of the through hole is chamfered, and the hemispherical bulge can well plug the through hole; the lower side plate of the water storage box 21 can be arranged into a cone shape or an inclined shape, and the through hole is positioned at the lowest position of the water storage box 21; the air holes are formed in the upper part of the rectangular box 2, so that water in the rectangular box 2 can be conveniently pumped out through the first U-shaped pipe 6; the lower end of the second U-shaped pipe 7 is communicated with a water storage tank, and the water storage tank collects water for convenient centralized treatment; the flow area of the through holes on the water storage box 21 is far larger than that of the first pipeline 13; when the water level line in the rectangular box 2 is slightly lower than the upper end of the first U-shaped pipe 6, the floating ball 22 is contacted with water and moves upwards under the action of buoyancy, the floating ball 22 drives the baffle plate to move upwards through the vertical rod, the baffle plate does not block the through hole any more, the through hole is opened, the water in the water storage box 21 rapidly flows to the lower part in the rectangular box 2, and the water level line in the rectangular box 2 rapidly rises and is completely higher than the upper end of the first U-shaped pipe 6; the height difference between the upper end of the first U-shaped pipe 6 and the lower side plate of the rectangular box 2 is larger than the height difference between the second U-shaped pipe 7 and the lower side plate of the container 3; if necessary, the side plates of the strip box 9 can be opened to prevent the fixed plate 19 from moving up and down; when the press block 18 is at the lowest end position, the lower end of the press block 18 enters the bottle storage box 8 and presses the pin on the bottle storage box 8 outwards, and the upper end of the pressed sampling bottle 11 is lower than the pin on the bottle storage box 8; the cavity of the bottle storage box 8 can only pass through one sampling bottle 11 at a time, the opening at the upper end of the sampling bottle 11 entering the bottle storage box 8 is sealed by the bottom of the sampling bottle 11 above the opening, and a sealing ring can be arranged on the wall edge at the upper end of the sampling bottle 11 in order to seal the sampling bottle 11.
When the device is used, cooled boiler water is connected to a water inlet of the valve 12, the first pipeline 13 is in an open state, the second pipeline 14 is in a closed state, the temperature of water flowing out of the first pipeline 11 is not cooled to the temperature specified in the sampling standard at the beginning, steam is mixed in the water, the water flow is unstable intermittently, the boiler water is introduced into the rectangular box 2 along the first pipeline 13, it is worth noting that the water at the moment can not directly flow to the lower end in the cavity of the rectangular box 2 but is retained by the water storage box 21 firstly, when the water storage box 21 is full, the water overflows from the upper end of the right side of the water storage box 21 and flows to the lower end in the cavity of the rectangular box 2, when the water level line at the lower end in the rectangular box 2 is about to reach the upper end of the first U-shaped tube 6, the floating ball 22 moves upwards under the action of buoyancy, the floating ball 22 drives the baffle plate to move upwards through the vertical rod, the through hole is opened, the water level line in the rectangular box 2 rises rapidly and submerges the first U-shaped pipe 6, under the siphon effect, the water in the rectangular box 2 flows into the container 3 through the first U-shaped pipe 6, the water in the container 3 increases gradually, the container 3 moves downwards under the action of the gravity of the water, the container 3 drives the connecting plate 4 to move downwards through the connecting rod 5, the connecting plate 4 drives the cylinder 16 to move downwards, the cylinder 16 drives the pressing block 18 to move downwards through the fixing plate 19, the pressing block 18 presses the sampling bottle 11 on the foremost side into the bottle storage box 8, meanwhile, the connecting plate 4 drives the valve rod to move downwards through the pull rod, at the moment, the first pipeline 13 is closed, the second pipeline 14 is opened, and the cooled water flows into the first sampling bottle 11 from the second pipeline 14 through the through hole on the pressing block 18; when the second U-shaped pipe 7 gradually discharges water in the container 3 by utilizing the siphon effect, the container 3 moves upwards under the action of the tension spring, and when the lower end of the pressing block 18 is completely separated from the sampling bottle 11, the second sampling bottle 11 moves forwards under the action of the compression spring to the foremost end of the strip box 9, namely under the pressing block 18, so as to prepare for next sampling; at the same time, the valve stem is also restored, the first duct 13 is opened again, the second duct 14 is closed again, and the sampling at the next stage is ready.
The pull rod consists of the cylinder 16 and the inserted rod 17 which can slide in the cylinder 16, so that the pull rod has elasticity and can well prevent the valve rod from being damaged; rectangle case 2 and some parts on it are detachable, can with articulate between first pipeline 13 and the rectangle case 2, when the boiler need take out all sample bottles 11, can upwards mention the locating plate 24 of U-shaped plate 23 front end for jack and bolt break away from, with the storage bottle box 8 take off this moment can, convenient arrangement makes things convenient for the dismouting transport.
The invention has the outstanding advantages and remarkable progress that:
1. according to the invention, a continuous collection mode is adopted, adverse effects of sediments in the boiler on sampling detection results are effectively prevented, cooled boiler water flows into the rectangular box 2, whether the previous water flow is smooth or not and whether steam exists or not are not considered at the moment, manual observation and judgment are not needed, when the water flow is stable and the liquid level completely submerges the first U-shaped pipe 6, automatic sampling can be realized at intervals by combining a siphon effect, manual waiting is not needed, and a worker only needs to take a sample containing the sample out after a period of time and place a new sampling bottle.
2. A plurality of sampling bottles 11 are arranged in the strip box 9, so that repeated sampling can be realized without manual repeated operation, the operation is convenient, and the mechanical treatment reliability is higher.
3. A part of water is pre-stored in the water storage box 21, when the water level line is about to reach the upper end of the first U-shaped pipe 6, the water level line in the rectangular box 2 is quickly lifted, and the first U-shaped pipe 6 can be effectively ensured to work normally.
The automatic sampling device has the advantages of ingenious structure, effective improvement of the automation degree of boiler sampling, simple and convenient operation, reduction of human labor, realization of automatic sampling in each period of time, recovery of water flowing out during sampling, reduction of water resource waste, environmental protection, reliable performance, guarantee of the quality of samples and strong adaptability.
Claims (8)
1. An automatic sampling device for boiler water quality is characterized by comprising a flat plate (1) which is horizontally fixed, a vertical and detachable rectangular box (2) is arranged below the flat plate (1), a space is arranged between the flat plate (1) and the rectangular box (2), a container (3) which is provided with an opening at the upper end and can move up and down is arranged below the rectangular box (2), a plurality of tension springs are connected between the lower end of the rectangular box (2) and the upper end of the container (3), a horizontal connecting plate (4) is arranged at the upper end in a cavity of the rectangular box (2), a plurality of vertical connecting rods (5) are fixed on the lower end surface of the connecting plate (4), the lower end of each connecting rod (5) penetrates through the lower side plate of the rectangular box (2) and is fixed with the container (3), a first U-shaped pipe (6) with a downward opening is fixed at the lower end in the cavity of the rectangular box (2), the lower end of the right side part of the first U-shaped pipe (6), a second U-shaped pipe (7) with a downward opening is fixed at the lower end in the cavity of the container (3), and the lower end of the right part of the first U-shaped pipe (6) penetrates through the lower side plate of the container (3) and is arranged below the container (3);
a vertical pull rod is fixed at the upper end of the connecting plate (4), the upper end of the pull rod penetrates through an upper side plate of the rectangular box (2) and is arranged above the rectangular box (2), a bottle storage box (8) with an upward opening is fixed on the front end surface of the rectangular box (2), a long box (9) with an upward opening is arranged on the upper end surface of the rectangular box (2), a pressing plate (10) capable of moving back and forth in the long box (9) is arranged at the rear end in a cavity of the long box (9), a pressing spring is connected between the pressing plate (10) and the rear side plate of the long box (9), a plurality of sampling bottles (11) with upward openings and uniformly distributed in the front and rear directions are arranged in the long box (9), the front end of the long box (9) is arranged right above the bottle storage box (8), a through hole is formed in the lower side of the front end of the long box (9), and when the pull rod moves downwards, the sampling bottles (11) positioned at the foremost side can; a two-position three-way valve (12) is fixed above the flat plate (1), one water outlet of the valve (12) is connected with a first pipeline (13), the other end of the first pipeline (13) penetrates through the side wall of the rectangular box (2) and is communicated with the cavity of the rectangular box (2), the other water outlet of the valve (12) is connected with a second pipeline (14), the other end of the second pipeline (14) penetrates through the flat plate (1) and is arranged right above a foremost sampling bottle (11), the lower end of a valve rod in the valve (12) penetrates through the flat plate (1) and is connected with the upper end of a pull rod, and the up-down movement of the valve rod controls the opening or closing of the first pipeline (13) and the second pipeline (14;
the pull rod comprises a vertical cylinder (16), the lower end of the cylinder (16) is fixed on the connecting plate (4), the upper end of the cylinder (16) is arranged above the rotating block, the rotating block is sleeved on the cylinder (16), an inserting rod (17) which is vertical and can slide up and down in the cylinder (16) is arranged in the cylinder (16), a tension spring is connected between the lower end of the inserting rod (17) and the lower end of the cylinder (16), and the upper end of the inserting rod (17) is connected with the lower end of the valve rod.
2. The automatic sampling device of boiler water quality according to claim 1, characterized in that, the rectangle case (2) upper end left and right sides all have a vertical riser (15), riser (15) upper end is fixed with flat board (1), one side that riser (15) lower extreme is close to rectangle case (2) has horizontal diaphragm, L column structure is constituteed with the diaphragm to riser (15), rectangle case (2) upper end left and right sides all has the arch, the arch is arranged on the diaphragm for rectangle case (2) can slide back and forth between two diaphragms.
3. The automatic sampling device for boiler water quality according to claim 1 is characterized in that the upper end of the inserted rod (17) is connected with a threaded pipe through threads, the outer circular surface of the lower end of the valve rod is provided with threads, the threaded pipe is connected with the lower end of the valve rod through threads, and the inserted rod (17) is connected with the valve rod through threads.
4. The automatic sampling device of boiler water quality according to claim 3, characterized in that a pressing block (18) is arranged right below the second pipeline (14), the pressing block (18) is fixed with the cylinder (16) through a fixing plate (19), when the cylinder (16) moves downwards, the cylinder (16) drives the pressing block (18) to move downwards through the fixing plate (19) and presses the foremost sampling bottle (11) into the bottle storage box (8), through holes corresponding to the second pipeline (14) are arranged on the pressing block (18), water in the second pipeline (14) can enter the sampling bottle (11) through the through holes, when the cylinder (16) moves upwards, the pull rod drives the pressing block (18) to move upwards through the fixing plate (19), and the next sampling bottle (11) moves forwards under the action of the pressing plate (10) to the right below the second pipeline (14).
5. The automatic sampling device of boiler water quality according to claim 1, characterized in that a horizontal supporting plate (20) capable of moving up and down is arranged in the bottle storage box (8), and a pressure spring is connected between the supporting plate (20) and a lower side plate of the bottle storage box (8).
6. The automatic boiler water quality sampling device according to claim 5, wherein pins capable of moving left and right are arranged at the upper ends of the left and right side plates of the bottle storage box (8), one ends of the pins are arranged in the bottle storage box (8), one ends of the pins in the bottle storage box (8) are inclined planes, the lower ends of the inclined planes are drawn close to the center of the bottle storage box (8), the other ends of the pins penetrate through the side plates of the bottle storage box (8) and are arranged outside the bottle storage box (8), one ends of the pins arranged outside the bottle storage box (8) are provided with annular protrusions, tension springs are connected between the annular protrusions and the bottle storage box (8), and the pins can prevent the sampling bottles (11) from moving upwards.
7. The automatic boiler water quality sampling device according to claim 1, wherein a water storage box (21) with an open upper end is fixed in the rectangular box (2), the left side of the water storage box (21) is fixed with the left side wall of the rectangular box (2), a space is formed between the right side plate of the water storage box (21) and the right side plate of the rectangular box (2), the water storage box (21) is positioned below the first pipeline (13), a through hole is formed in the lower side plate of the water storage box (21), a baffle is arranged at the upper end of the through hole and can seal the through hole, a vertical rod is arranged at the lower end of the baffle, the vertical rod penetrates through the lower side plate of the water storage box (21) through the through hole and is arranged below the water storage box (21), and an annular space is connected between the vertical rod and; a hollow plastic floating ball (22) is fixed at the lower end of the vertical rod, and a pressure spring is connected between the floating ball (22) and the lower side plate of the water storage box (21).
8. The automatic sampling device of boiler water quality according to claim 1, characterized in that a U-shaped plate (23) with an upward opening is fixed on the front end face of the rectangular box (2), the bottom end of the bottle storage box (8) is arranged in the cavity of the U-shaped plate (23), a vertical positioning plate (24) is arranged at the front end of the U-shaped plate (23), a plurality of jacks are arranged on the lower side plate of the U-shaped plate (23), a plurality of pins which are in one-to-one correspondence with the jacks are arranged at the lower end of the positioning plate (24), the pins are inserted in the jacks, and the positioning plate (24) can prevent the bottle storage box (8) from falling off the U-shaped plate (23).
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| CN110487982B (en) * | 2019-07-30 | 2021-06-25 | 上海蓝魂环保科技有限公司 | Water quality detection device for ship tail gas desulfurization device |
| CN112461595B (en) * | 2020-11-27 | 2024-06-18 | 河南省锅炉压力容器检验技术科学研究院 | Furnace water sampling device capable of automatically washing bottles |
| CN112284820B (en) * | 2020-11-27 | 2024-04-12 | 姜慧 | Furnace water sampling device |
| CN115791230B (en) * | 2022-11-11 | 2025-04-11 | 华能(广东)能源开发有限公司汕头电厂 | A self-flowing condenser detection device |
| CN116282575B (en) * | 2023-03-21 | 2023-09-12 | 厦门汇科天工净水材料有限公司 | Production and manufacturing method of composite carbon source |
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