On-line self-cleaning air bag closed sampler

Abstract

The utility model relates to the technical field of samplers, and discloses an online self-cleaning air bag closed sampler which comprises a shell, an air pump is arranged on the outer wall of the front side of the shell, a ball bladder is fixedly arranged at the output end of the air pump, a sample injection pipe is fixedly connected to the outer wall of the right side of the ball bladder, and a one-way valve is fixedly connected to the outer wall of the sample injection pipe. A sample outlet pipe is fixedly connected to the lower surface of the ball bladder, the outer wall of the sample outlet pipe is fixedly connected to the inner wall of a one-way valve, a gas collection chamber is fixedly connected to the inner wall of the shell, a flange is fixedly connected to the outer wall of the rear side of the shell, and a sampling primary valve is fixedly connected to the outer wall of the right side of the shell. According to the utility model, the air pump is started to rotate the sampling primary valve, and the air pump is started to enable a medium to enter the ball bladder from the sampling primary valve through the sample inlet pipe and then enter the air collection chamber through the air control assembly through the sample outlet pipe, so that waste gas for cleaning the air bag cannot be discharged to the atmosphere, pollution and waste are reduced, and the safety of operators is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to sampler technical field especially relates to online self -cleaning gasbag closed sampler. BACKGROUND

[0002] The gasbag closed sampler is an instrument for environmental monitoring and pollutant sampling, which is usually used for collecting samples in air, water body or other gas medium. Its working principle is to seal the medium to be measured in a closed space by gasbag sealing method to avoid exchange with external air, ensuring the representativeness and accuracy of the sample. This sampler is often used for collecting toxic and harmful gases or volatile substances and is widely used in atmospheric monitoring, industrial waste gas emission monitoring and environmental research fields.

[0003] The main purpose of using the gasbag closed sampler is to ensure the representativeness and accuracy of the collected sample. By sealing the sample in the gasbag, the interference of external pollutants and the change of sample composition can be effectively avoided, ensuring that the collected gas or liquid is not affected by the external environment during transportation and analysis. This is crucial for monitoring air quality, environmental pollution or harmful substances in industrial emissions, and can provide reliable data support for accurate evaluation and decision-making.

[0004] Currently, for gas phase medium, the cleaning and replacement method of the sampler is to fill the ball with fresh medium at the sampling site, then squeeze the medium in the sampler into the atmosphere, repeat several times of inflation and squeezing, and then perform the next sample collection after replacement and cleaning. This method has many dangers and hazards. For toxic gases, this method has many dangers for sampling personnel. In addition, the gas is discharged into the atmosphere, which does not meet the environmental protection requirements, pollutes the environment, and is time-consuming and laborious. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides an online self-cleaning gasbag closed sampler, which aims to improve the problem that this method has many dangers and hazards: for toxic gases, this method has many dangers for sampling personnel, in addition, the gas is discharged into the atmosphere, which does not meet the environmental protection requirements, pollutes the environment, and finally is time-consuming and laborious.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] An online self-cleaning airbag sealed sampler includes a housing. A suction pump is mounted on the front outer wall of the housing. A bulb is fixedly mounted at the output end of the suction pump. An inlet tube is fixedly connected to the right outer wall of the bulb. A one-way valve is fixedly connected to the outer wall of the inlet tube. An outlet tube is fixedly connected to the lower surface of the bulb. The outer wall of the outlet tube is fixedly connected to the inner wall of the one-way valve. A gas collection chamber is fixedly connected to the inner wall of the housing. A flange is fixedly connected to the rear outer wall of the housing. A primary sampling valve is fixedly connected to the right outer wall of the housing. A primary sampling valve is fixedly connected to the front outer wall of the housing. The upper surface of the primary sampling valve is fixedly connected to the inner wall of the inlet tube. A gas control component is mounted on the right outer wall of the outlet tube. The gas control component controls the inlet and outlet directions of the gaseous medium.

[0008] Preferably, the pneumatic control assembly includes an air inlet, the left outer wall of the air inlet is fixedly connected to the right outer wall of the sample outlet tube, a protective shell is fixedly connected to the lower surface of the air inlet, and a control rod is rotatably connected to the front outer wall of the protective shell.

[0009] Preferably, the inner wall of the protective shell is slidably connected to a sliding column, and the outer left wall of the sliding column is provided with a first spring, the outer wall of the first spring being slidably connected to the inner wall of the protective shell.

[0010] Preferably, a first vent is fixedly connected to the lower surface of the protective shell, and a second vent is fixedly connected to the lower surface of the protective shell.

[0011] Preferably, the outer wall of the first air outlet is provided with a disassembly assembly, which is used to facilitate the replacement of the sample collection container. The disassembly assembly includes a protective cover, the outer wall of which is fixedly connected to the outer wall of the first air outlet.

[0012] Preferably, a support plate is fixedly connected to the right outer wall of the protective cover, a second spring is provided on the outer wall of the support plate, and a support column is provided on the outer wall of the second spring.

[0013] Preferably, a gear ring is fixedly connected to the left outer wall of the support column, the outer wall of the gear ring is rotatably connected to the inner wall of the protective cover, the tooth ends of the gear ring are meshed with a gear, and the inner wall of the gear is rotatably connected to the inner wall of the protective cover.

[0014] Preferably, the gear teeth are meshed with a rack, the outer wall of the rack is slidably connected to the inner wall of the protective cover, and the outer wall of the rack is fixedly connected to a sliding cover.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, by starting the air pump and rotating the sampling valve, the sample enters the bladder through the sample inlet tube. The sample enters the sampling tank through the pneumatic control component. After the collection is completed, the air pump is started to allow the medium to enter the bladder through the sampling valve and then through the sample outlet tube and the pneumatic control component into the gas collection chamber. This achieves the effect of preventing the exhaust gas from cleaning the airbag from being emitted into the atmosphere, reducing pollution and waste, and ensuring the safety of the operators.

[0017] 2. In this utility model, by pulling the support column, the second spring is extended, the support column drives the gear ring to rotate the gear, and the gear pushes the rack to move the sliding cover, so as to quickly clamp the sampling can and facilitate the replacement of the sampling can, thus avoiding the waste of a lot of time in the process of replacing the sampling can. Attached Figure Description

[0018] Figure 1 This is a perspective view of the online self-cleaning airbag sealed sampler proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of a partial structure of the bladder of the online self-cleaning airbag sealed sampler proposed in this utility model;

[0020] Figure 3 This is a partial structural diagram of the slide bar of the online self-cleaning airbag sealed sampler proposed in this utility model;

[0021] Figure 4 This is a partial structural diagram of the support plate of the online self-cleaning airbag sealed sampler proposed in this utility model.

[0022] Legend:

[0023] 1. Outer shell; 11. Vacuum pump; 12. Bulb; 13. Inlet tube; 14. Check valve; 15. Outlet tube; 16. Gas collection chamber; 17. Flange; 18. Primary sampling valve; 19. Primary sampling valve; 2. Protective shell; 21. Control rod; 22. Sliding column; 23. First spring; 24. Inlet; 25. First outlet; 26. Second outlet; 3. Protective cover; 31. Support plate; 32. Second spring; 33. Support column; 34. Gear ring; 35. Gear; 36. Rack; 37. Sliding cover. Detailed Implementation

[0024] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Reference Figure 1and Figure 2 An embodiment of this utility model provides an online self-cleaning airbag sealed sampler, including a shell 1. A suction pump 11 is provided on the front outer wall of the shell 1. A bulb 12 is fixedly provided at the output end of the suction pump 11. An inlet tube 13 is fixedly connected to the right outer wall of the bulb 12. A one-way valve 14 is fixedly connected to the outer wall of the inlet tube 13. An outlet tube 15 is fixedly connected to the lower surface of the bulb 12. The outer wall of the outlet tube 15 is fixedly connected to the inner wall of the one-way valve 14. A gas collection chamber 16 is fixedly connected to the inner wall of the shell 1. A flange 17 is fixedly connected to the rear outer wall of the shell 1. A sampling primary valve 18 is fixedly connected to the right outer wall of the shell 1. A primary sampling valve 19 is fixedly connected to the front outer wall of the shell 1. The upper surface of the primary sampling valve 19 is fixedly connected to the inner wall of the inlet tube 13. A gas control component is provided on the right outer wall of the outlet tube 15. The gas control component is used to control the inlet and outlet direction of the gas phase medium.

[0026] Specifically, the sample is connected to the sampling point via flange 17, then the vacuum pump 11 protected by the outer casing 1 is started, and the sampling primary valve 18 is rotated. The sample enters the bulb 12 through the inlet pipe 13 and the one-way valve 14. During use, this has the effect of restricting the direction of the sample to prevent leakage. The sample is compressed into the bulb 12 and enters the sampling tank through the outlet pipe 15 and the pneumatic control component. After the sample is collected, the sampling primary valve 19 and the pneumatic control component are rotated again. The medium enters the gas collection chamber 16 through the sampling primary valve 19 and the pneumatic control component. This process is repeated multiple times. During use, the exhaust gas from the cleaning airbag will not be emitted into the atmosphere, reducing pollution and waste, and ensuring the safety of the operator.

[0027] Reference Figure 3 The pneumatic control assembly includes an air inlet 24, the left outer wall of the air inlet 24 is fixedly connected to the right outer wall of the sample outlet tube 15, a protective shell 2 is fixedly connected to the lower surface of the air inlet 24, a control rod 21 is rotatably connected to the front outer wall of the protective shell 2, a sliding column 22 is slidably connected to the inner wall of the protective shell 2, a first spring 23 is provided on the left outer wall of the sliding column 22, the outer wall of the first spring 23 is slidably connected to the inner wall of the protective shell 2, a first air outlet 25 is fixedly connected to the lower surface of the protective shell 2, and a second air outlet 26 is fixedly connected to the lower surface of the protective shell 2.

[0028] Specifically, rotating the control lever 21 protected by the protective shell 2 to the sampling mode causes the slide column 22 to move and compress the first spring 23. The sample flows out from the first outlet 25 through the air inlet 24. This allows for rapid sample collection. After the sample is collected, rotating the control lever 21 to the circulation mode causes the slide column 22 to move the first spring 23. The medium enters through the air inlet 24 and exits through the second outlet 26 into the exhaust gas collection chamber. This allows for rapid control of the sample's movement direction to meet different needs.

[0029] Reference Figure 4The outer wall of the first air outlet 25 is provided with a disassembly assembly for easy replacement of the sampling container. The disassembly assembly includes a protective cover 3. The outer wall of the protective cover 3 is fixedly connected to the outer wall of the first air outlet 25. A support plate 31 is fixedly connected to the right outer wall of the protective cover 3. A second spring 32 is provided on the outer wall of the support plate 31. A support column 33 is provided on the outer wall of the second spring 32. A gear ring 34 is fixedly connected to the left outer wall of the support column 33. The outer wall of the gear ring 34 is rotatably connected to the inner wall of the protective cover 3. A gear 35 is meshed with the tooth end of the gear ring 34. The inner wall of the gear 35 is rotatably connected to the inner wall of the protective cover 3. A rack 36 is meshed with the tooth end of the gear 35. The outer wall of the rack 36 is slidably connected to the inner wall of the protective cover 3. A sliding cover 37 is fixedly connected to the outer wall of the rack 36.

[0030] Specifically, pulling the support column 33 extends the support plate 31 supported by the second spring 32, which allows the support column 33 to quickly reset and is convenient for multiple uses. The support column 33 drives the gear ring 34 to rotate on the inner wall of the protective cover 3. The gear ring 34 drives the gear 35 to push the rack 36 to rotate in the protective cover 3. This restricts the movement trajectory of the rack 36 and prevents it from deviating during movement. The rack 36 drives the sliding cover 37 to move, which allows for quick clamping of the sampling canister and facilitates replacement of the sampling canister, avoiding the waste of a lot of time during the replacement process.

[0031] Working principle: When the sampler is needed, it is connected to the sampling point via flange 17. Pulling the support column 33 causes the second spring 32 to move on the support plate 31, allowing the support column 33 to rebound for continuous use. The support column 33 drives the gear ring 34 to rotate within the protective cover 3. The rotation of the gear ring 34 drives the gear 35 to rotate, which in turn drives the rack 36 to slide within the protective cover 3. This restricts the movement trajectory of the rack 36, preventing deviation during movement. The movement of the rack 36 causes the sliding cover 37 to move, quickly clamping the sampling container for easy replacement and avoiding the waste of time during container changes. After installing the sampling container and starting the vacuum pump 11, the primary sampling valve 18 is rotated. The medium enters the bladder 12 through the inlet pipe 13 and the one-way valve 14, restricting the direction of medium flow and preventing leakage. When the bladder is full, the control lever 21 is rotated to the sampling mode. The control lever 21 pushes the sliding column 22 to compress the first spring 23, causing the sliding column 22 to move... After moving to the designated position, the compressed bulb 12 is compressed. The medium enters the air inlet 24 through the sample outlet 15 and the one-way valve 14. The medium then enters the first air outlet 25 through the air inlet 24 and flows into the sampling tank, achieving the effect of rapid sample collection. After the sample is collected, the control lever 21 is rotated to the circulation mode. The control lever 21 drives the slide column 22 to push the first spring 23 to move. After rotating the sampling primary valve 19, the vacuum pump 11 is started. The medium enters the sample inlet 13 through the sampling primary valve 19 and enters the bulb 12. Then, it enters the air inlet 24 through the sample outlet 15 and enters the gas collection chamber 16 through the second air outlet 26. After repeating the above actions, the residual medium in the airbag from the previous sampling is fully replaced, ensuring that it will not contaminate the next sample. During the use of this sampler, not only can the exhaust gas from cleaning the airbag not be emitted into the atmosphere, reducing pollution and waste and ensuring the safety of the operator, but it can also quickly clamp the sampling tank for easy replacement, avoiding the waste of a lot of time during the replacement of the sampling tank.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An on-line self-cleaning bag closure sampler comprising a housing (1) characterised in that: The front side outer wall of the shell (1) is provided with an air pump (11), the output end of the air pump (11) is fixedly provided with a bulb (12), the right side outer wall of the bulb (12) is fixedly connected with a sample inlet tube (13), the outer wall of the sample inlet tube (13) is fixedly connected with a one-way valve (14), the lower surface of the bulb (12) is fixedly connected with a sample outlet tube (15), the outer wall of the sample outlet tube (15) is fixedly connected with the inner wall of the one-way valve (14), the inner wall of the shell (1) is fixedly connected with a gas collection chamber (16), the rear side outer wall of the shell (1) is fixedly connected with a flange (17), the right side outer wall of the shell (1) is fixedly connected with a sampling primary valve (18), the front side outer wall of the shell (1) is fixedly connected with a sampling primary valve (19), the upper surface of the sampling primary valve (19) is fixedly connected with the inner wall of the sample inlet tube (13), the right side outer wall of the sample outlet tube (15) is provided with a gas control assembly, and the gas control assembly is used for controlling the in-out direction of the gas phase medium.

2. The online self-cleaning bag closure sampler of claim 1, wherein: The gas control assembly comprises an air inlet (24), the left side outer wall of the air inlet (24) is fixedly connected with the right side outer wall of the sample outlet tube (15), and the lower surface of the air inlet (24) is fixedly connected with a protective shell (2).

3. The on-line self-cleaning bag closure sampler according to claim 2, characterized in that: The inner wall of the protective shell (2) is slidably connected with a slide column (22), the left side outer wall of the slide column (22) is provided with a first spring (23), and the outer wall of the first spring (23) is slidably connected with the inner wall of the protective shell (2).

4. The on-line self-cleaning bag closure sampler according to claim 3, characterized in that: The lower surface of the protective shell (2) is fixedly connected with a first air outlet (25), and the lower surface of the protective shell (2) is fixedly connected with a second air outlet (26).

5. The on-line self-cleaning bag closure sampler according to claim 4, characterized in that: The outer wall of the first air outlet (25) is provided with a disassembly assembly, the disassembly assembly is used for conveniently replacing the sample collection tank, the disassembly assembly comprises a protective cover (3), and the outer wall of the protective cover (3) is fixedly connected with the outer wall of the first air outlet (25).

6. The online self-cleaning bagless sampler of claim 5, wherein: The right side outer wall of the protective cover (3) is fixedly connected with a supporting plate (31), the outer wall of the supporting plate (31) is provided with a second spring (32), and the outer wall of the second spring (32) is provided with a supporting column (33).

7. The online self-cleaning bagless sampler of claim 6, wherein: The left side outer wall of the supporting column (33) is fixedly connected with a gear ring (34), the outer wall of the gear ring (34) is rotatably connected with the inner wall of the protective cover (3), the tooth end of the gear ring (34) is engagedly connected with a gear (35), and the inner wall of the gear (35) is rotatably connected with the inner wall of the protective cover (3).

8. The online self-cleaning bagless sampler of claim 7, wherein: The tooth end of the gear (35) is engagedly connected with a rack (36), the outer wall of the rack (36) is slidably connected with the inner wall of the protective cover (3), and the outer wall of the rack (36) is fixedly connected with a sliding cover (37).

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