A waste gas sampling device for industrial waste gas detection

By using a telescopic multi-point sampling rod with a multi-section tension structure and a unidirectional flow sampling nozzle, combined with a pickup and placement mechanism, the problem of uneven sampling in industrial waste gas detection is solved, achieving efficient and stable waste gas collection and adapting to sampling needs under different working conditions.

CN224500093UActive Publication Date: 2026-07-14YUNNAN TIANBO ENVIRONMENTAL TESTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN TIANBO ENVIRONMENTAL TESTING CO LTD
Filing Date
2025-08-12
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing industrial waste gas detection devices do not sample evenly under different waste gas flow rates, resulting in inaccurate detection results, increased costs and difficulty, and reduced detection efficiency.

Method used

The telescopic multi-point sampling rod with a multi-section tension structure and a unidirectional flow sampling nozzle, combined with a pickup and placement mechanism, enables the collection of exhaust gas at different depths and locations, ensuring the representativeness and stability of the samples.

Benefits of technology

It improves the representativeness and stability of exhaust gas sampling, reduces testing costs, increases testing efficiency, and adapts to sampling needs under different operating conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to industrial waste gas sampling technical field discloses a kind of waste gas sampling devices for industrial waste gas detection, including bottom plate, the top front side of bottom plate is fixedly connected with suction pump, the input end of suction pump is communicated with through pipe, the top end of through pipe is communicated with suction port, the output end of suction pump is communicated with connecting pipe, the outer wall of connecting pipe has connecting plate, the bottom of connecting plate is fixedly connected with one-way valve, the rear end of connecting pipe is communicated with waste gas bucket, the top of bottom plate is fixedly connected with pickup placement mechanism, and the pickup placement mechanism is used for sample pickup placement.In the utility model, there is suction pump on the bottom plate, suction pump connects through pipe, the top of through pipe has suction port, suction pump sucks waste gas from suction port into through pipe, transports to connecting pipe, after waste gas enters, one-way valve will rotate upwards, waste gas enters waste gas bucket, is stored, and the gas capacity in waste gas bucket is controlled by one-way valve.
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Description

Technical Field

[0001] This utility model relates to the field of industrial waste gas sampling technology, and in particular to a waste gas sampling device for industrial waste gas detection. Background Technology

[0002] Industrial waste gas sampling device technology achieves precise collection of industrial waste gas through mechanical structure optimization and sampling logic innovation. Its core technology addresses issues such as uneven gas distribution and numerous interfering factors within pipelines, ensuring sample representativeness and stability. This technology integrates multiple practical designs: a layered sampling lever adjusts the opening via rotation to achieve targeted collection of waste gas at different pipeline heights; a telescopic multi-point sampling rod with a multi-section tension structure allows for the acquisition of samples at different depths in a single operation, improving efficiency; a unidirectional flow-guiding sampling nozzle, with its tilt angle and baffle design, blocks reverse airflow interference; and an adjustable-spacing sampling frame adjusts the probe position via a sliding scale, ensuring uniform coverage of the pipeline cross-section. The design is based on a simple mechanical structure, eliminating the need for complex electrical controls, reducing maintenance costs, and adapting to waste gas sampling needs under various operating conditions, providing reliable sample support for subsequent testing and analysis.

[0003] Industrial waste gas is generated during the production and manufacturing processes in the chemical industry. For safety and environmental protection during production, it is necessary to collect the waste gas for testing and treatment. Existing equipment collects waste gas in a fixed way, and it is difficult to control the flow rate of different waste gases. Different gas flow rates will affect the content of the sample, resulting in inaccurate test results, affecting experimental results, increasing the cost and difficulty of testing, reducing testing efficiency, reducing practicality, and narrowing the scope of application. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an industrial waste gas sampling device for detecting waste gas, which aims to improve the problem of limiting the flow rate of waste gas in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an industrial waste gas sampling device for detection, comprising a base plate, a suction pump fixedly connected to the top front side of the base plate, an input pipe connected to the input end of the suction pump, a suction port connected to the top end of the pipe, a connecting pipe connected to the output end of the suction pump, a fixing plate fixedly connected to the outer wall of the connecting pipe, a connecting plate rotatably connected to the inner wall of the fixing plate, a one-way valve fixedly connected to the bottom of the connecting plate, a waste gas tank connected to the rear end of the connecting pipe, a vent pipe connected to the left side of the inner wall of the waste gas tank, a sampling bottle provided at the bottom end of the vent pipe, a cover plate rotatably connected to the top of the waste gas tank, and a pickup and placement mechanism fixedly connected to the top of the base plate, the pickup and placement mechanism being used for sample pickup and placement.

[0006] As a further description of the above technical solution:

[0007] The pickup and placement mechanism includes a base, the bottom of which is fixedly connected to the top of a base plate. A motor is fixedly connected to the top of the base, and a fixed rod is fixedly connected to the output end of the motor. A perforated disc is fixedly connected to the right side of the fixed rod. A disc frame is slidably connected to the outer wall of the perforated disc. A connecting rod is rotatably connected to the inner wall of the disc frame. A rotating shaft is rotatably connected to the inner wall of the connecting rod. A support column is rotatably connected to the left side of the outer wall of the rotating shaft. A rotating rod is rotatably connected to the right side of the outer wall of the rotating shaft. A connecting shaft is rotatably connected to the top of the rotating rod. A hook rod is fixedly connected to the outer wall of the connecting shaft. A sampling basket is slidably connected to the bottom of the hook rod.

[0008] As a further description of the above technical solution:

[0009] The bottom of the sampling basket is provided with a sample box, and the bottom of the sample box is fixedly connected with pulleys.

[0010] As a further description of the above technical solution:

[0011] A sealing sleeve is fixedly connected to the outer wall of the pipe, and a pad is fixedly connected to the bottom of the waste gas tank.

[0012] As a further description of the above technical solution:

[0013] A support column is fixedly connected to the outer wall of the fixed rod, and the outer wall of the support column is rotatably connected to the inner wall of the rotating rod.

[0014] As a further description of the above technical solution:

[0015] A protective cover is fixedly connected to the top surface of the base near the edge, and the top surface of the protective cover has heat dissipation holes.

[0016] As a further description of the above technical solution:

[0017] A nameplate is fixedly connected to the outer wall of the protective cover, and screws are threaded onto the inner wall of the nameplate.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the connecting pipe is slidably connected to the outer wall of the one-way valve, and the top of the base plate is slidably connected to the outer wall of the pulley.

[0020] As a further description of the above technical solution:

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, there is an air suction pump on the front right side of the base plate. A connecting pipe is connected to the front side of the air suction pump. An air suction port is connected to the top of the connecting pipe. The air suction pump draws industrial waste gas from the air suction port into the connecting pipe and transports it to the connecting pipe. After the waste gas enters, the one-way valve will rotate upward. Then the waste gas enters the waste gas tank from the rear side of the connecting pipe and is stored. When gas enters, it can be opened. When there is no gas, it will automatically close under the action of gravity, thus controlling the gas volume in the waste gas tank.

[0023] 2. In this utility model, the top of the base has a motor, which is connected to a fixed rod. When the motor is started, it drives the fixed rod and the perforated disc to rotate together. As the perforated disc rotates, it drives the disc frame to rotate, and the rotation of the disc frame drives the connecting rod and the rotating shaft to rotate together. The rotating shaft rotates on the inner wall of the support column, causing the rotating rod to swing back and forth. The rotating rod drives the hook rod to swing up and down back and forth, thereby picking up and placing the sampling basket. It can automatically place the sample into the sample box without manual picking, which is convenient and fast. Attached Figure Description

[0024] Figure 1 This is a front perspective view of a waste gas sampling device for industrial waste gas detection proposed in this utility model;

[0025] Figure 2 This is a partial structural diagram of the connecting pipe of an industrial waste gas sampling device for detection proposed in this utility model;

[0026] Figure 3 This is a partial structural diagram of the disc frame of an industrial waste gas sampling device for detection proposed in this utility model;

[0027] Figure 4 This is a partial structural diagram of the connecting shaft of an industrial waste gas sampling device for detection proposed in this utility model.

[0028] Figure 5 This is a partial structural diagram of the protective cover of an industrial waste gas sampling device for detection proposed in this utility model.

[0029] Legend:

[0030] 1. Base plate; 2. Pick-up and placement mechanism; 201. Base; 202. Motor; 203. Fixing rod; 204. Perforated disc; 205. Support column; 206. Disc frame; 207. Connecting rod; 208. Rotating shaft; 209. Hook rod; 210. Rotating rod; 211. Connecting shaft; 212. Sampling basket; 3. Through pipe; 4. Inlet; 5. Connecting pipe; 6. One-way valve; 7. Fixing plate; 8. Connecting plate; 9. Venting pipe; 10. Waste gas tank; 11. Sample box; 12. Pulley; 13. Sampling bottle; 14. Sealing sleeve; 15. Support column; 16. Protective cover; 17. Heat dissipation hole; 18. Nameplate; 19. Screw; 20. Cover plate; 21. Inlet pump; 22. Pad plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see the appendix Figure 1 , attached Figure 2 An embodiment of this utility model provides an industrial waste gas sampling device, comprising a base plate 1, an air suction pump 21 fixedly connected to the top front side of the base plate 1, an input pipe 3 connected to the input end of the air suction pump 21, an air suction port 4 connected to the top end of the air suction pump 3, a connecting pipe 5 connected to the output end of the air suction pump 21, a fixing plate 7 fixedly connected to the outer wall of the connecting pipe 5, a connecting plate 8 rotatably connected to the inner wall of the fixing plate 7, a one-way valve 6 fixedly connected to the bottom of the connecting plate 8, a waste gas tank 10 connected to the rear end of the connecting pipe 5, a vent pipe 9 connected to the left side of the inner wall of the waste gas tank 10, a sampling bottle 13 provided at the bottom end of the vent pipe 9, a cover plate 20 rotatably connected to the top of the waste gas tank 10, and a pickup and placement mechanism 2 fixedly connected to the top of the base plate 1 for picking up and placing samples.

[0033] Specifically, the top of the base plate 1 has an air suction pump 21 for suction, the pipe 3 is used for transporting waste gas, the pipe 3 has an air suction port 4 for collecting waste gas, the fixed plate 7 has a connecting plate 8, the bottom of the connecting plate 8 has a one-way valve 6 for sealing the gas and limiting the gas flow rate, the connecting pipe 5 is connected to a waste gas tank 10 for storing waste gas, the inner wall of the waste gas tank 10 has a vent pipe 9 for taking waste gas samples, and the cover plate 20 of the waste gas tank 10 is used to seal the waste gas.

[0034] Please see the appendix Figure 1 , attached Figure 3 and attached Figure 4The pickup and placement mechanism 2 includes a base 201, the bottom of which is fixedly connected to the top of the base plate 1. A motor 202 is fixedly connected to the top of the base 201. A fixed rod 203 is fixedly connected to the output end of the motor 202. A perforated disc 204 is fixedly connected to the right side of the fixed rod 203. A disc frame 206 is slidably connected to the outer wall of the perforated disc 204. A connecting rod 207 is rotatably connected to the inner wall of the disc frame 206. A rotating shaft 208 is rotatably connected to the inner wall of the connecting rod 207. A support column 205 is rotatably connected to the left side of the outer wall of the rotating shaft 208. A rotating rod 210 is rotatably connected to the right side of the outer wall of the rotating shaft 208. A connecting shaft 211 is rotatably connected to the top of the rotating rod 210. A hook rod 209 is fixedly connected to the outer wall of the connecting shaft 211. A sampling basket 212 is slidably connected to the bottom of the hook rod 209.

[0035] Specifically, the base 201 has a motor 202, and a fixing rod 203 is connected to the motor 202. The fixing rod 203 is connected to a perforated disc 204, which can rotate together. At the same time, the disc frame 206 and the rotating shaft 208 rotate together. A support column 205 is connected to the outer wall of the rotating shaft 208 to provide support. The rotation of the rotating shaft 208 drives the rotating rod 210 to rotate together. The hook rod 209 is used to hook the sampling basket 212, which is used to store the sample gas, thereby completing the pickup and placement of the sample gas.

[0036] Please see the appendix Figure 1 , attached Figure 3 As shown in Figure 4, a sample box 11 is provided at the bottom of the sampling basket 212, and a pulley 12 is fixedly connected to the bottom of the sample box 11. A support column 15 is fixedly connected to the outer wall of the fixing rod 203, and the outer wall of the support column 205 is rotatably connected to the inner wall of the rotating rod 210.

[0037] Specifically, the bottom of the sampling basket 212 has a sample box 11 for storing sample gas. The bottom of the sample box 11 has pulleys 12 for sliding. The outer wall of the fixing rod 203 has a support column 15 for support.

[0038] Please see the appendix Figure 1 , attached Figure 2 , attached Figure 5 A protective cover 16 is fixedly connected to the top surface of the base 201 near the edge, and the top surface of the protective cover 16 has heat dissipation holes 17. A nameplate 18 is fixedly connected to the outer wall of the protective cover 16, and a screw 19 is threaded onto the inner wall of the nameplate 18. A sealing sleeve 14 is fixedly connected to the outer wall of the through pipe 3, and a pad 22 is fixedly connected to the bottom of the waste gas tank 10. The outer wall of the connecting pipe 5 is slidably connected to the outer wall of the one-way valve 6, and the top of the base plate 1 is slidably connected to the outer wall of the pulley 12.

[0039] Specifically, the base 201 has a protective cover 16 to protect the motor 202. The protective cover 16 has heat dissipation holes 17 for heat dissipation. The outer wall of the protective cover 16 has a nameplate 18, which shows the information of the motor 202. The nameplate 18 is fixed with screws 19. The outer wall of the pipe 3 has a sealing sleeve 14 to seal it. The pad 22 is used to place the waste gas tank 10. The connecting pipe 5 can slide between the one-way valve 6.

[0040] Working principle: There is an air suction pump 21 on the front right side of the base plate 1. The front side of the air suction pump 21 is connected to the connecting pipe 3. The top of the connecting pipe 3 is connected to the air suction port 4. Through the suction of the air suction pump 21, the industrial waste gas is sucked into the connecting pipe 3 from the air suction port 4 and transported to the connecting pipe 5. As the waste gas enters, the one-way valve 6 will rotate upward. Then the waste gas enters the waste gas tank 10 from the rear side of the connecting pipe 5 and is stored. When needed, the vent pipe 9 is opened and the gas enters the sampling bottle 13 for subsequent sample processing.

[0041] The base 201 has a motor 202 on top, which is connected to the fixed rod 203. When the motor 202 is started, it drives the fixed rod 203 and the perforated disc 204 to rotate together. As the perforated disc 204 rotates, it also drives the disc frame 206 to rotate. The rotation of the disc frame 206 in turn drives the connecting rod 207 and the rotating shaft 208 to rotate together. The rotating shaft 208 rotates on the inner wall of the support column 205, so the rotating rod 210 swings back and forth. The swing of the rotating rod 210 causes the hook rod 209 to swing up and down, thereby picking up and placing the sampling basket 212, completing the sample placement.

[0042] 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 industrial waste gas sampling device, comprising a base plate (1), characterized in that: A suction pump (21) is fixedly connected to the top front side of the base plate (1). The input end of the suction pump (21) is connected to a through pipe (3). The top end of the through pipe (3) is connected to a suction port (4). The output end of the suction pump (21) is connected to a connecting pipe (5). A fixing plate (7) is fixedly connected to the outer wall of the connecting pipe (5). A connecting plate (8) is rotatably connected to the inner wall of the fixing plate (7). A one-way valve (6) is fixedly connected to the bottom of the connecting plate (8). A waste gas tank (10) is connected to the rear end of the connecting pipe (5). A vent pipe (9) is connected to the left side of the inner wall of the waste gas tank (10). A sampling bottle (13) is provided at the bottom end of the vent pipe (9). A cover plate (20) is rotatably connected to the top of the waste gas tank (10). A pickup and placement mechanism (2) is fixedly connected to the top of the base plate (1). The pickup and placement mechanism (2) is used for picking up and placing samples.

2. The waste gas sampling device for industrial waste gas detection according to claim 1, characterized in that: The picking and placing mechanism (2) includes a base (201), the bottom of which is fixedly connected to the top of the base plate (1). A motor (202) is fixedly connected to the top of the base (201). A fixing rod (203) is fixedly connected to the output end of the motor (202). A perforated disc (204) is fixedly connected to the right side of the fixing rod (203). A disc frame (206) is slidably connected to the outer wall of the perforated disc (204). A disc frame (206) is rotatably connected to the inner wall of the disc frame (206). A connecting rod (207) is rotatably connected to a rotating shaft (208) on its inner wall. A support column (205) is rotatably connected to the left side of the outer wall of the rotating shaft (208). A rotating rod (210) is rotatably connected to the right side of the outer wall of the rotating shaft (208). A connecting shaft (211) is rotatably connected to the top of the rotating rod (210). A hook rod (209) is fixedly connected to the outer wall of the connecting shaft (211). A sampling basket (212) is slidably connected to the bottom of the hook rod (209).

3. The waste gas sampling device for industrial waste gas detection according to claim 2, characterized in that: The bottom of the sampling basket (212) is provided with a sample box (11), and the bottom of the sample box (11) is fixedly connected with a pulley (12).

4. The waste gas sampling device for industrial waste gas detection according to claim 1, characterized in that: A sealing sleeve (14) is fixedly connected to the outer wall of the through pipe (3), and a pad (22) is fixedly connected to the bottom of the waste gas tank (10).

5. The waste gas sampling device for industrial waste gas detection according to claim 2, characterized in that: The outer wall of the fixed rod (203) is fixedly connected to the support column (15), and the outer wall of the support column (205) is rotatably connected to the inner wall of the rotating rod (210).

6. The waste gas sampling device for industrial waste gas detection according to claim 2, characterized in that: A protective cover (16) is fixedly connected to the top surface of the base (201) near the edge, and the top surface of the protective cover (16) is provided with heat dissipation holes (17).

7. The waste gas sampling device for industrial waste gas detection according to claim 6, characterized in that: The outer wall of the protective cover (16) is fixedly connected to a nameplate (18), and the inner wall of the nameplate (18) is threaded with a screw (19).

8. The waste gas sampling device for industrial waste gas detection according to claim 1, characterized in that: The outer wall of the connecting pipe (5) is slidably connected to the outer wall of the one-way valve (6), and the top of the base plate (1) is slidably connected to the outer wall of the pulley (12).