Water washing device for pretreatment of process gas sample

Abstract

The utility model discloses a water washing device for pretreatment of a process gas sample, which relates to the technical field of water washing devices and comprises a support frame, a water washing tank fixed on the inner side of the support frame, a tank cover connected to the top of the water washing tank, a driving motor fixed on the top of the tank cover, and a rotating rod connected below the driving motor, a water storage tank is arranged on the outer side of the washing tank, a connecting pipe is installed on the side face of the water storage tank, a water pump is connected to one side of the connecting pipe, a water conveying pipe is connected to the top of the water pump, and an annular water pipe is connected to one end of the water conveying pipe. By arranging the automatic cleaning mechanism, the first scraper and the second scraper can quickly and efficiently remove residues on the inner side wall and the bottom wall of the washing tank under the flushing of a plurality of groups of spraying heads, so that the washing tank can better wash samples.

Description

Technical Field

[0001] The utility model relates to the technical field of water washing devices, in particular to a water washing device for pre-treatment of process gas samples. Background Art

[0002] For samples containing corrosive gases and liquids, when using online analyzers to measure components insoluble in water, water washing and alkali washing methods will be used to treat the samples. Alkaline washing is to neutralize the acidic substances in the sample gas, and water is to wash away the impurities soluble in water. In order to meet the analysis requirements of the online analyzer for the sample gas.

[0003] The existing sample pretreatment water washing device has a single structure, low water washing efficiency, and a generally small water washing tank, which can easily cause incomplete water washing and untimely overflow, resulting in the washing water flowing into the subsequent sample pipeline, causing inaccurate measurement of the analytical instrument, and even serious damage to the analytical instrument. For this reason, we propose a water washing device for process gas sample pretreatment.

[0004] After searching the existing Chinese patents: a water washing device for pretreatment of process gas samples (Announcement No.: CN218444738U), including an outer tube and an inner tube, the outer tube is sleeved on the inner tube, a sample inlet is installed on one side of the top of the outer tube, a feed pipe is installed at the bottom of the sample inlet, the bottom of the feed pipe is placed in the inner tube, a cleaning water inlet is installed on one side of the bottom of the outer tube, the cleaning water inlet runs through the outer tube and the inner tube, a pressure reducing valve flow meter is installed at the bottom of the cleaning water inlet, an air pipe is installed on the side of the top of the outer tube away from the sample inlet, an automatic exhaust valve is installed on the top of the air pipe, and an overflow port is provided on one side of the outer tube. This application changes the form and method of water washing, relies on the balance of sample pressure and the pressure after the cleaning water is reduced, and ensures a certain liquid level difference in the water washing tank, so that the cleaning water can fully replace the water-soluble components in the sample. And rely on the water seal to ensure the stability of the subsequent sample pressure.

[0005] Although the above patent changes the water washing form and method, relying on the balance between the sample pressure and the pressure after the washing water is decompressed, so that the washing water can fully replace the water-soluble components in the sample, there is a disadvantage that during the washing process, residues will remain in the sewage after washing, and the residues will adhere to the side walls and bottom walls inside the washing tank. If they are not cleaned, the washing effect will be affected, and the impurities in the washing cannot be better removed. Manual cleaning is more troublesome, which will affect the production progress.

[0006] Therefore, it is necessary to invent a water washing device for process gas sample pretreatment to solve the above problems. Utility Model Content

[0007] The utility model aims to provide a water washing device for pre-treatment of process gas samples, so as to solve the problem of inconvenience in cleaning the water washing tank proposed in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water washing device for pretreatment of process gas samples, comprising a support frame, a water washing tank is fixed on the inner side of the support frame, a tank cover is connected to the top of the water washing tank, a driving motor is fixed to the top of the tank cover, a rotating rod is connected to the bottom of the driving motor, a connecting rod is fixed to the outer wall of the rotating rod, a first scraper is fixed to one end of the connecting rod, a second scraper is arranged below the connecting rod, a water storage tank is arranged on the outside of the water washing tank, a connecting pipe is installed on the side of the water storage tank, a water pump is connected to one side of the connecting pipe, a water supply pipe is connected to the top of the water pump, one end of the water supply pipe is connected to an annular water pipe, and a spray head is fixed to the bottom of the annular water pipe.

[0009] Preferably, a sample inlet is provided on the top of the tank cover, and a feed pipe is connected to the bottom of the sample inlet.

[0010] Preferably, a diffuser is connected to the bottom end of the feed pipe, and an air outlet pipe is provided on one side of the sample inlet.

[0011] Preferably, an automatic exhaust valve is connected to the outside of the exhaust pipe, and a fastening bolt is provided on one side of the automatic exhaust valve.

[0012] Preferably, the bottom end of the rotating rod is connected to a bearing seat.

[0013] Preferably, a fixing block is connected to the outside of the annular water pipe, and a threaded hole is provided on the top of the water washing tank.

[0014] Preferably, a water inlet pipe is installed on the outer wall of the water washing tank, and a sewage discharge pipe is installed at the bottom of the water washing tank.

[0015] Technical effects and advantages of the utility model:

[0016] 1. By setting an automatic cleaning mechanism, a driving motor, a rotating rod, a connecting rod, a first scraper, a second scraper, a water storage tank, a connecting pipe, a water pump, a water pipe, a circular water pipe, and a spray head, when a lot of residues are accumulated on the side walls and the bottom wall inside the washing tank, the driving motor is operated so that the driving motor drives the rotating rod to rotate, and two groups of connecting rods and two groups of second scrapers are fixed on the outer wall of the rotating rod, so that the rotating rod drives the two groups of connecting rods and the two groups of second scrapers to rotate, and the first scrapers are respectively fixed at one end of the two groups of connecting rods, so that the two groups of connecting rods drive the two groups of first scrapers to rotate, so that the two groups of first scrapers and the two groups of second scrapers can scrape the residues attached to the side walls and the bottom wall inside the washing tank, and at the same time, the water is operated A pump is used to pump water from the water storage tank to the water delivery pipe through the connecting pipe, and then deliver the water to the annular water pipe through the water delivery pipe. A plurality of spray heads are installed at the annular bottom of the annular water pipe, so that the plurality of spray heads spray the water in the annular water pipe. The plurality of spray heads are oriented toward the side walls inside the washing tank, so that the plurality of spray heads flush the side walls inside the washing tank. The water flows along the side walls to the bottom wall, so that the bottom wall is also flushed. In this way, under the operation of the first scraper and the second scraper, the residue on the side walls and the bottom wall inside the washing tank can be removed quickly and efficiently, and finally the residue and sewage after cleaning are discharged through the sewage discharge pipe, thereby ensuring that the washing tank can better wash the sample;

[0017] 2. By setting up a sample inlet, a feed pipe and a diffuser, the sample after acid and alkali neutralization enters the feed pipe through the sample inlet and is then dispersed through the diffuser, so that the sample can be better washed with water. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The utility model is a front view structural schematic diagram of a water washing device for pretreatment of process gas samples.

[0020] Figure 2 This is a disassembled diagram of an automatic cleaning mechanism of a water washing device for pretreatment of process gas samples according to the utility model.

[0021] Figure 3 The utility model is a schematic diagram of a top view of a water washing device for pretreatment of process gas samples.

[0022] Figure 4The utility model is a schematic diagram of the structure of a water washing device for pretreatment of process gas samples in a top view.

[0023] In the figure: 1. support frame; 2. water washing tank; 3. tank cover; 4. sample inlet; 5. feed pipe; 6. diffuser; 7. exhaust pipe; 8. automatic exhaust valve; 9. fastening bolts; 10. drive motor; 11. rotating rod; 12. bearing seat; 13. connecting rod; 14. first scraper; 15. second scraper; 16. water storage tank; 17. connecting pipe; 18. water pump; 19. water pipe; 20. annular water pipe; 21. spray head; 22. fixing block; 23. threaded hole; 24. water inlet pipe; 25. sewage discharge pipe. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] The utility model provides Figure 1-4The water washing device for pretreatment of process gas samples shown in the figure comprises a support frame 1, a water washing tank 2 is fixed on the inner side of the support frame 1, wherein the water washing tank 2 plays the role of water washing samples, a tank cover 3 is connected to the top of the water washing tank 2, wherein the tank cover 3 plays the role of closing the water washing tank 2, a driving motor 10 is fixed to the top of the tank cover 3, wherein the driving motor 10 plays the role of driving a rotating rod 11 to rotate, a rotating rod 11 is connected below the driving motor 10, wherein the rotating rod 11 plays the role of driving two groups of connecting rods 13 and two groups of second scrapers 15 to rotate, a connecting rod 13 is fixed to the outer wall of the rotating rod 11, wherein the connecting rod 13 plays the role of installing and driving a first scraper 14 to rotate, a first scraper 14 is fixed to one end of the connecting rod 13, wherein the first scraper 14 plays the role of scraping off residues attached to the inner side wall of the water washing tank 2, and a second scraper 15 is arranged below the connecting rod 13, which The second scraper 15 in the middle serves to scrape off the residue attached to the bottom wall inside the washing tank 2. A water storage tank 16 is arranged on the outside of the washing tank 2, wherein the water storage tank 16 serves to store cleaning water. A connecting pipe 17 is installed on the side of the water storage tank 16, wherein the connecting pipe 17 serves to connect the water storage tank 16 with a water pump 18. One side of the connecting pipe 17 is connected to the water pump 18, wherein the water pump 18 serves to pump water. A water delivery pipe 19 is connected to the top of the water pump 18, wherein the water delivery pipe 19 serves to deliver water to the annular water pipe 20. One end of the water delivery pipe 19 is connected to the annular water pipe 20, wherein the annular water pipe 20 serves to install multiple groups of spray heads 21, and the water inside the annular water pipe 20 is sprayed out through the multiple groups of spray heads 21. A spray head 21 is fixed to the bottom of the annular water pipe 20, wherein the multiple groups of spray heads 21 serve to spray water to the inner side wall of the washing tank 2, thereby achieving a flushing effect.

[0026] A sample inlet 4 is provided on the top of the tank cover 3, and a feed pipe 5 is connected to the bottom of the sample inlet 4, wherein the sample inlet 4 serves to inject the sample into the feed pipe 5, and the feed pipe 5 serves to install a diffuser 6 and disperse the sample through the diffuser 6.

[0027] The bottom end of the feed pipe 5 is connected with a diffuser 6, and one side of the sample inlet 4 is provided with an air outlet pipe 7, wherein the diffuser 6 plays a role in dispersing the sample, and the air outlet pipe 7 plays a role in discharging the gas after water washing.

[0028] The outside of the air outlet pipe 7 is connected to an automatic exhaust valve 8 , and a fastening bolt 9 is provided on one side of the automatic exhaust valve 8 , wherein the automatic exhaust valve 8 serves to discharge the gas after water washing, and the fastening bolt 9 serves to install the tank cover 3 .

[0029] The bottom end of the rotating rod 11 is connected to a bearing seat 12 , wherein the bearing seat 12 allows the rotating rod 11 to rotate inside the bearing seat.

[0030] The outside of the annular water pipe 20 is connected with a fixing block 22 , and the top of the washing tank 2 is provided with a threaded hole 23 , wherein the fixing block 22 serves to fix the annular water pipe 20 , and the threaded hole 23 serves to connect the fastening bolt 9 .

[0031] A water inlet pipe 24 is installed on the outer wall of the washing tank 2, and a sewage discharge pipe 25 is installed at the bottom of the washing tank 2, wherein the water inlet pipe 24 plays the role of injecting clean water used for washing, and the sewage discharge pipe 25 plays the role of discharging sewage after washing, and also allows the flushing sewage to be discharged from the inside.

[0032] Working principle: During use, when a lot of residues accumulate on the side walls and bottom wall of the washing tank 2, the driving motor 10 is operated so that the driving motor 10 drives the rotating rod 11 to rotate. Two groups of connecting rods 13 and two groups of second scrapers 15 are fixed to the outer wall of the rotating rod 11, so that the rotating rod 11 drives the two groups of connecting rods 13 and the two groups of second scrapers 15 to rotate. One end of the two groups of connecting rods 13 is respectively fixed with a first scraper 14, so that the two groups of connecting rods 13 drive the two groups of first scrapers 14 to rotate, so that the two groups of first scrapers 14 and the two groups of second scrapers 15 can scrape the residues attached to the side walls and bottom wall of the washing tank 2. At the same time, the water pump 18 is operated so that the water pump 18 pumps the water in the water storage tank 16 through the connecting pipe 17. It is sent to the water pipe 19, and then transported to the annular water pipe 20 through the water pipe 19. A plurality of groups of spray heads 21 are installed at the annular bottom of the annular water pipe 20, so that the plurality of groups of spray heads 21 spray the water in the annular water pipe 20. The plurality of groups of spray heads 21 are oriented just toward the side walls inside the washing tank 2, so that the plurality of groups of spray heads 21 flush the side walls inside the washing tank 2, and the water flows along the side walls to the bottom wall, so that the bottom wall is also flushed. In this way, under the operation of the first scraper 14 and the second scraper 15, the residue on the side walls and bottom walls inside the washing tank 2 can be removed quickly and efficiently, and finally the residue sewage after cleaning is discharged through the sewage discharge pipe 25, thereby ensuring that the washing tank 2 can better wash the sample.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water washing device for pre-treatment of process gas samples, comprising a support frame (1), characterized in that: A washing tank (2) is fixed on the inner side of the support frame (1), a tank cover (3) is connected to the top of the washing tank (2), a driving motor (10) is fixed to the top of the tank cover (3), a rotating rod (11) is connected to the bottom of the driving motor (10), a connecting rod (13) is fixed to the outer wall of the rotating rod (11), a first scraper (14) is fixed to one end of the connecting rod (13), a second scraper (15) is arranged below the connecting rod (13), a water storage tank (16) is arranged on the outer side of the washing tank (2), a connecting pipe (17) is installed on the side of the water storage tank (16), a water pump (18) is connected to one side of the connecting pipe (17), a water delivery pipe (19) is connected to the top of the water pump (18), one end of the water delivery pipe (19) is connected to an annular water pipe (20), and a spray head (21) is fixed to the bottom of the annular water pipe (20).

2. The water washing device for pretreatment of process gas samples according to claim 1, characterized in that: A sample inlet (4) is provided at the top of the tank cover (3), and a feed pipe (5) is connected to the bottom of the sample inlet (4).

3. A water washing device for pretreatment of process gas samples according to claim 2, characterized in that: The bottom end of the feed pipe (5) is connected to a diffuser (6), and one side of the sample inlet (4) is provided with an air outlet pipe (7).

4. The water washing device for pretreatment of process gas samples according to claim 3 is characterized in that: The outside of the air outlet pipe (7) is connected to an automatic exhaust valve (8), and a fastening bolt (9) is provided on one side of the automatic exhaust valve (8).

5. The water washing device for pretreatment of process gas samples according to claim 1, characterized in that: The bottom end of the rotating rod (11) is connected to a bearing seat (12).

6. The water washing device for pretreatment of process gas samples according to claim 1, characterized in that: The outside of the annular water pipe (20) is connected to a fixing block (22), and the top of the washing tank (2) is provided with a threaded hole (23).

7. The water washing device for pretreatment of process gas samples according to claim 1, characterized in that: A water inlet pipe (24) is installed on the outer wall of the water washing tank (2), and a sewage discharge pipe (25) is installed at the bottom of the water washing tank (2).

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