A gas detection sampling device

Abstract

The utility model relates to the field of gas detection, and disclose a kind of gas detection sampling device, the utility model includes mechanical pump and gas tank;Mechanical pump's air inlet end fixed communication inlet pipe, the air outlet end fixed communication outlet pipe of mechanical pump, inlet pipe and outlet pipe are all extended upwards, the top end of inlet pipe is fixedly connected through filter head, the top end of outlet pipe is fixedly connected pressure gauge, the top of outlet pipe is installed pressure relief valve, the outer wall of outlet pipe is fixedly connected with several gas distribution branch pipes left and right sides, electromagnetic valve is installed on gas distribution branch pipe, one end of gas tank is provided with connecting port, and the connecting port is in the shape of neck-in.

Description

Technical Field

[0001] This utility model relates to the field of gas detection, specifically a gas detection and sampling device. Background Technology

[0002] In fields such as chemical engineering, environmental protection, and industrial production, the detection of gas composition and concentration is crucial. Accurate gas detection helps ensure production safety, protect the environment, and meet regulatory requirements.

[0003] Existing gas sampling devices (authorized public numbers CN218823460U and CN218567016U) require manual operation of the pumping device, resulting in excessive unnecessary human intervention. This is a significant waste of manpower when sampling at fixed points and times. Utility Model Content

[0004] To overcome the above-mentioned shortcomings, this utility model provides a gas detection and sampling device.

[0005] The technical solution adopted by this utility model is as follows:

[0006] A gas detection and sampling device includes a mechanical pump and a gas tank. The inlet end of the mechanical pump is fixedly connected to an inlet pipe, and the outlet end of the mechanical pump is fixedly connected to an outlet pipe. Both the inlet and outlet pipes extend upwards. The top end of the inlet pipe is fixedly connected to a filter head, and the top end of the outlet pipe is fixedly connected to a pressure gauge. A pressure relief valve is installed on the top of the outlet pipe. Several gas supply branch pipes are fixedly connected to the left and right sides of the outer wall of the outlet pipe. Solenoid valves are installed on the gas supply branch pipes. A connection port is opened at one end of the gas tank. The connection port is constricted and has an internal thread on its inner wall. A sealing cap is provided inside the connection port. The connection port is threadedly connected to the sealing cap. The outer wall of the sealing cap is fixedly connected to one end of a gas collecting pipe and one end of an exhaust pipe. A one-way valve is installed on the gas collecting pipe, and a valve is installed on the exhaust pipe. A flexible hose is fixedly connected between the gas collecting pipe and one of the gas supply branch pipes. A piston is slidably installed inside the gas tank. A piston rod is slidably inserted into the other end of the gas tank. One end of the piston rod is located inside the gas tank and fixedly connected to the piston. The other end of the piston rod is located outside the gas tank and fixedly connected to a handle. A second handle is fixedly connected to the outer wall of the gas tank.

[0007] The other end of the gas collecting pipe is threaded, and the locking nut is threaded onto the thread. The locking nut is threadedly connected to the thread. One end of the hose is fixedly connected to one end of the rigid pipe. The other end of the rigid pipe is fixedly connected to the protrusion. The rigid pipe is slidably fitted with the internally threaded pipe. One end of the internally threaded pipe is snapped into the protrusion. The sealing gasket is between the protrusion and the threaded end. The internally threaded pipe is threaded onto the thread. The locking nut is pressed against the other end of the internally threaded pipe.

[0008] The beneficial effects of this utility model are:

[0009] This invention requires no human intervention during the entire sampling process, saving manpower. The emptying of the gas tank and gas sampling can be completed simply by controlling the opening and closing of the valves and solenoid valves and the movement of the piston rod, making it easy for operators to use.

[0010] Several gas supply branches are fixedly connected to the left and right sides of the outer wall of the gas outlet pipe. Each gas supply branch is equipped with a solenoid valve, which allows the sampling device to connect to multiple gas tanks at the same time for fixed-point sampling. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the gas tank of this utility model;

[0013] Figure 3 yes Figure 2 Enlarged view of a specific area.

[0014] The reference numerals in all the attached drawings are as follows: 1. Mechanical pump; 2. Inlet pipe; 3. Filter head; 4. Outlet pipe; 5. Pressure gauge; 6. Pressure relief valve; 7. Gas supply branch pipe; 8. Solenoid valve; 9. Hose; 10. Gas tank; 11. Connection port; 12. Sealing cap; 13. Gas collection pipe; 14. One-way valve; 15. Exhaust pipe; 16. Valve; 17. Piston; 18. Piston rod; 19. Handle one; 20. Handle two; 22. Thread; 23. Lock nut; 24. Sealing gasket; 25. Protrusion; 26. Internally threaded pipe; 27. Rigid pipe. Detailed Implementation

[0015] like Figure 1-3As shown: A gas detection and sampling device includes a mechanical pump 1 and a gas tank 10; the inlet end of the mechanical pump 1 is fixedly connected to an inlet pipe 2, and the outlet end of the mechanical pump 1 is fixedly connected to an outlet pipe 4. Both the inlet pipe 2 and the outlet pipe 4 extend upwards. The top end of the inlet pipe 2 is fixedly connected to a filter head 3, and the top end of the outlet pipe 4 is fixedly connected to a pressure gauge 5. A pressure relief valve 6 is installed on the top of the outlet pipe 4. Several gas supply branch pipes 7 are fixedly connected to the left and right sides of the outer wall of the outlet pipe 4. Solenoid valves 8 are installed on the gas supply branch pipes 7. A connection port 11 is opened at one end of the gas tank 10. The connection port 11 is constricted and has an internal thread on its inner wall. The connection port 11 has a sealed... The sealing cap 12 is threadedly connected to the connecting port 11. The outer wall of the sealing cap 12 is fixedly connected to one end of the gas collecting pipe 13 and one end of the exhaust pipe 15. A one-way valve 14 is installed on the gas collecting pipe 13 and a valve 16 is installed on the exhaust pipe 15. A hose 9 is fixedly connected between the gas collecting pipe 13 and one of the gas supply branches 7. A piston 17 is slidably installed inside the gas tank 10. A piston rod 18 is slidably inserted into the other end of the gas tank 10. One end of the piston rod 18 is located inside the gas tank 10 and is fixedly connected to the piston 17. The other end of the piston rod 18 is located outside the gas tank 10 and is fixedly connected to a handle 19. A handle 20 is fixedly connected to the outer wall of the gas tank 10.

[0016] The other end of the gas collecting pipe 13 is provided with a thread 22. The locking nut 23 is fitted onto the thread 22 and the locking nut 23 is threadedly connected to the thread 22. One end of the hose 9 is fixedly connected to one end of the rigid pipe 27. The other end of the rigid pipe 27 is fixedly connected to the protrusion 25. The rigid pipe 27 is slidably fitted onto the internally threaded pipe 26. One end of the internally threaded pipe 26 is snapped into the protrusion 25. The sealing gasket 24 is between the protrusion 25 and the end of the thread 22. The internally threaded pipe 26 is threadedly fitted onto the thread 22. The locking nut is pressed against the other end of the internally threaded pipe 26.

[0017] Before taking gas samples, open valve 16 on exhaust pipe 15 of gas tank 10. Valve 16 is a solenoid valve. Then, push handle 19 to move piston rod 18, which in turn pushes piston 17 to slide inside gas tank 10, discharging the original gas in gas tank 10 from exhaust pipe 15. After the gas in gas tank 10 is emptied, close valve 16.

[0018] The gas collecting pipe 13 of the emptied gas tank 10 is connected to one of the gas supply branches 7 on the gas outlet pipe 4 via a hose 9. The connection between the gas collecting pipe 13 and the hose 9 is achieved through an internal threaded pipe 26, a protrusion 25, a thread 22, and a locking nut 23.

[0019] Open the solenoid valve 8 on the gas supply branch pipe 7 of the connecting hose 9, start the mechanical pump 1, the mechanical pump 1 starts to work, draw gas from the outside. The gas to be tested first passes through the filter head 3 to filter out impurities, then enters the mechanical pump 1 through the air inlet pipe 2, and then flows out from the air outlet end of the mechanical pump 1 through the air outlet pipe 4.

[0020] After passing through the outlet pipe 4, the gas is injected into the gas tank 10 through the open gas supply branch pipe 7 and hose 9. As the gas is continuously injected, the piston 17 slides away from the gas collection pipe 13 inside the gas tank 10 until the gas tank 10 is filled with the gas to be tested, thus completing the gas sampling process.

[0021] After sampling is completed, close the solenoid valve 8 and stop the mechanical pump 1. Then, the hose 9 can be separated from the gas collecting pipe 13 to remove the gas tank 10. Separate it through the internal threaded pipe 26, protrusion 25, thread 22 and locking nut 23. Remove the gas tank 10 for subsequent gas detection and analysis. When the gas in the gas tank 10 needs to be discharged for inspection, the one-way valve 14 can only allow gas to enter the gas tank 10 and cannot allow gas to exit the gas tank 10. Open the valve 16, hold the handle 20, push the handle 19, and the piston 17 moves into the gas tank 10, and the gas comes out from the gas tank 10.

[0022] Multiple gas cylinders 10 can be used simultaneously to collect gas samples as needed.

[0023] This utility model only protects the mechanical parts; the functions implemented by the software control part are not within the scope of protection of this utility model.

Claims

1. A gas detection sampling device comprising a mechanical pump (1) and a gas tank (10), characterized in that, The inlet end of the mechanical pump (1) is fixedly connected to the inlet pipe (2), and the outlet end of the mechanical pump (1) is fixedly connected to the outlet pipe (4). Both the inlet pipe (2) and the outlet pipe (4) extend upward. The top end of the inlet pipe (2) is fixedly connected to the filter head (3), and the top end of the outlet pipe (4) is fixedly connected to the pressure gauge (5). A pressure relief valve (6) is installed on the top of the outlet pipe (4). Several gas supply branch pipes (7) are fixedly connected to the left and right sides of the outer wall of the outlet pipe (4). A solenoid valve (8) is installed on the gas supply branch pipe (7). A connection port (11) is opened at one end of the gas tank (10). The connection port (11) is constricted. The inner wall of the connection port (11) is provided with internal threads. The connection port (11) has a sealing cap (12). The connection port (11) and the sealing cap (12) are connected to the gas tank (10). The cover (12) is threaded and the outer wall of the sealing cover (12) is fixedly connected to one end of the gas collection pipe (13) and one end of the exhaust pipe (15). A one-way valve (14) is installed on the gas collection pipe (13) and a valve (16) is installed on the exhaust pipe (15). A hose (9) is fixedly connected between the gas collection pipe (13) and one of the gas supply branches (7). A piston (17) is slidably installed inside the gas tank (10). A piston rod (18) is slidably inserted into the other end of the gas tank (10). One end of the piston rod (18) is located inside the gas tank (10) and is fixedly connected to the piston (17). The other end of the piston rod (18) is located outside the gas tank (10) and is fixedly connected to handle one (19). Handle two (20) is fixedly connected to the outer wall of the gas tank (10).

2. The gas detection sampling device of claim 1, wherein, The other end of the gas collecting pipe (13) is provided with a thread (22), and the locking nut (23) is fitted with the thread (22). The locking nut (23) is threadedly connected to the thread (22). One end of the hose (9) is fixedly connected to one end of the rigid pipe (27). The other end of the rigid pipe (27) is fixedly connected to the protrusion (25). The rigid pipe (27) is slidably fitted with the internal threaded pipe (26). One end of the internal threaded pipe (26) is snapped with the protrusion (25). The sealing gasket (24) is between the protrusion (25) and the end of the thread (22). The internal threaded pipe (26) is threadedly fitted with the thread (22). The locking nut is pressed against the other end of the internal threaded pipe (26).

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