Oilfield station warehouse low calorific value associated gas treatment device

Abstract

This invention proposes a low-calorific-value associated gas treatment device for oilfield storage facilities, relating to the field of associated gas treatment technology. It includes a treatment box with a working chamber inside. Two partition plates are fixedly installed inside the treatment box, dividing the working chamber into three independent chambers: a smoke exhaust chamber, a heating chamber, and a mounting chamber (left, center, and right). This invention provides a low-calorific-value associated gas treatment device for oilfield storage facilities. Through the arrangement of the treatment box, partition plates, mixing structure, first and second air inlet pipes, combustion box, combustion nozzle, water outlet pipe, water inlet pipe, smoke exhaust pipe, return gas pipe, gas guiding mechanism, pressure driving mechanism, and air flow control mechanism, it can recover and utilize the heat generated by the combustion of associated gas. It can also adjust the air intake of associated gas according to the combustion status in the combustion box, and recover and re-filter or separately treat incompletely combusted flue gas, reducing environmental pollution.

Description

Technical Field

[0001] This invention relates to the field of associated gas treatment technology, and in particular to a device for treating low-calorific-value associated gas in oilfield storage facilities. Background Technology

[0002] During oilfield extraction, nitrogen and carbon dioxide are often injected into the formation as oil enhancement aids. This results in increased nitrogen and carbon dioxide concentrations and decreased methane concentrations (below standard natural gas) in associated gas. Consequently, the associated gas cannot be directly introduced into the gas transmission network, causing safety and environmental problems. Furthermore, ordinary burners cannot directly ignite it, leading to resource waste, environmental pollution, and significant safety hazards in the work area. Because the low-calorific-value associated gas at oilfield wellheads contains large amounts of CO2 and N2 components, traditional gas burners cannot ignite it. Treatment methods such as recycling are energy-intensive and uneconomical. Therefore, a low-calorific-value associated gas treatment device for oilfield stations and storage facilities is needed. Summary of the Invention

[0003] Based on the technical problems existing in the background art, the present invention proposes a low-calorific-value associated gas treatment device for oilfield stations and storage facilities.

[0004] This invention proposes a low-calorific-value associated gas treatment device for oilfield stations and storage facilities, including a treatment box. The treatment box has a working chamber, and two isolation plates are fixedly installed inside the treatment box. The two isolation plates can divide the working chamber into three independent smoke exhaust chambers, heating chambers, and installation chambers in the left, middle, and right directions.

[0005] A mixing structure is fixedly installed inside the mounting cavity, and a No. 1 air inlet pipe and a No. 2 air inlet pipe are fixedly connected to the mixing structure.

[0006] A combustion chamber is fixedly installed inside the heating chamber. The combustion chamber is connected to the mixing structure. A combustion nozzle connected to the mixing structure is installed inside the combustion chamber. A water outlet pipe and a water inlet pipe connected to the heating chamber are installed on one side of the processing box.

[0007] The combustion chamber is connected to a flue pipe, which is connected to the exhaust chamber. The flue pipe is also connected to a return pipe. A gas guiding mechanism is installed inside the flue pipe. The gas guiding mechanism can discharge the flue gas generated by combustion in the combustion chamber into the exhaust chamber. The gas guiding mechanism can also discharge the flue gas generated by combustion in the combustion chamber into the return pipe.

[0008] The combustion chamber is equipped with a pressure drive mechanism, which can drive the gas guide mechanism to work.

[0009] An airflow control mechanism is provided inside the No. 1 air intake pipe, and the pressure drive mechanism can drive the airflow control mechanism to work.

[0010] Preferably, the mixing structure includes a mixing box and two mixing inlet pipes; the mixing box is fixedly installed in the mounting cavity, and a mixing chamber is opened in the mixing box. One side of the mixing chamber is a spherical concave surface, and the other side of the mixing chamber is a spherical convex surface. The air inlets of the first and second air inlets are both located on the spherical convex surface of the mixing chamber.

[0011] One end of each of the two mixing intake pipes is connected to the mixing chamber, and the intake ends of the two mixing intake pipes are located on the spherical concave surface of the mixing chamber. The projection positions of the intake ends of the two mixing intake pipes on the spherical convex surface form a cross structure with the first intake pipe and the second intake pipe. The other end of each of the two mixing intake pipes is connected to the combustion nozzle.

[0012] Preferably, the air guiding mechanism includes a three-way mounting block and a three-way rotating block; the three-way mounting block is fixedly installed inside the exhaust pipe, and a T-shaped channel is opened on the three-way mounting block. One end of the return air pipe is connected to the vertical channel of the T-shaped channel. The three-way rotating block is rotatably installed inside the three-way mounting block through a rotating shaft, and a three-way channel is opened on the three-way rotating block.

[0013] Preferably, the pressure driving mechanism includes a limiting sealing tube, a piston plate, a return spring, and a driving assembly; one end of the limiting sealing tube is connected to one end of the exhaust pipe, and the limiting sealing tube is fixedly installed inside the combustion chamber; the piston plate is slidably fitted on the limiting sealing tube; and both ends of the return spring abut against the inner wall of the combustion chamber and the piston plate, respectively.

[0014] The drive assembly is used to convert the sliding motion of the piston plate in the combustion chamber into the rotational motion of the three-way rotating block.

[0015] Preferably, the drive assembly includes a drive half-tooth rod and a gear; one end of the drive half-tooth rod is fixedly connected to one side of the piston plate, and the other end of the drive half-tooth rod slides through the combustion chamber and extends into the exhaust chamber; the rotating shaft of the three-way rotating block passes through the three-way mounting block, the exhaust pipe and is fixedly connected to the gear; the gear meshes with the drive half-tooth rod.

[0016] Preferably, the ventilation control mechanism includes an auxiliary frame, a flexible diaphragm, and a retraction / expansion assembly; the auxiliary frame is fixedly installed inside the first air inlet pipe, and there are multiple retraction / expansion assemblies, with the flexible diaphragm fitted onto multiple retraction / expansion assemblies;

[0017] Multiple retractable components are arranged in a circular array on one side of the auxiliary frame, and the multiple retractable components are used to control the extension size of the flexible sheath.

[0018] Preferably, the retractable assembly includes a retractable rod and a drive rod; there are two retractable rods, the ends of the two retractable rods are rotatably connected, one end of the retractable rod is rotatably connected to an auxiliary frame, the other end of the retractable rod is rotatably connected to the drive rod, and the other end of the drive rod is fixedly connected to a piston plate;

[0019] The drive rod slides through the auxiliary frame.

[0020] Preferably, a chimney communicating with the exhaust chamber is fixedly installed on the processing box.

[0021] The low-calorific-value associated gas treatment device proposed in this invention has the following beneficial effects: through the setting of a treatment box, isolation plate, mixing structure, No. 1 air inlet pipe, No. 2 air inlet pipe, combustion box, combustion nozzle, water outlet pipe, water inlet pipe, flue pipe, return gas pipe, gas guiding mechanism, pressure driving mechanism and gas flow control mechanism, it can recover and utilize the heat generated by the combustion of associated gas. It can also adjust the gas intake of associated gas according to the combustion status of associated gas in the combustion box, and recover and re-filter or separately treat the incompletely combusted flue gas, thereby reducing environmental pollution. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a low-calorific-value associated gas treatment device for oilfield stations proposed in this invention.

[0023] Figure 2 This is a side sectional view of the treatment box in a low-calorific-value associated gas treatment device for oilfield stations proposed in this invention.

[0024] Figure 3 This is a cross-sectional view of the pressure drive mechanism and the ventilation control mechanism in a low-calorific-value associated gas treatment device for oilfield stations proposed in this invention.

[0025] Figure 4 This is a partial cross-sectional view of the mixing tank in a low-calorific-value associated gas treatment device for oilfield stations proposed in this invention.

[0026] Figure 5 This is a schematic diagram of the piston plate, drive half-tooth rod, and drive rod in an oilfield station storage low-calorific-value associated gas treatment device proposed in this invention.

[0027] Figure 6 This is a cross-sectional view of the gas guiding mechanism in the flue pipe of a low-calorific-value associated gas treatment device for oilfield stations proposed in this invention;

[0028] Figure 7 This is a schematic diagram of the three-way rotating block and gear in an oilfield station low-calorific-value associated gas treatment device proposed in this invention;

[0029] Figure 8 This is a schematic diagram of the end face of the ventilation control mechanism inside the No. 1 air inlet pipe in a low-calorific-value associated gas treatment device for oilfield stations and storage facilities proposed in this invention.

[0030] Figure 9 This is a side cross-sectional view of the ventilation control mechanism in the No. 1 air inlet pipe of a low-calorific-value associated gas treatment device for oilfield stations proposed in this invention.

[0031] In the diagram: 1. Processing box; 2. Isolation plate; 3. No. 1 air inlet pipe; 4. No. 2 air inlet pipe; 5. Combustion box; 6. Combustion nozzle; 7. Water outlet pipe; 8. Exhaust pipe; 9. Return pipe; 10. Mixing box; 11. Mixing air inlet pipe; 12. Mixing chamber; 13. T-shaped mounting block; 14. T-shaped rotating block; 15. Limiting sealing pipe; 16. Piston plate; 17. Return spring; 18. Drive half-tooth rod; 19. Gear; 20. Auxiliary frame; 21. Flexible diaphragm; 22. Retracting rod; 23. Drive rod; 24. Chimney; 25. Water inlet pipe. Detailed Implementation

[0032] Reference Figures 1-9This invention proposes a low-calorific-value associated gas treatment device for oilfield stations, comprising a treatment box 1, a working chamber inside the treatment box 1, and two isolation plates 2 fixedly installed inside the treatment box 1. The two isolation plates 2 can divide the I-shaped chamber into three independent exhaust chambers, a heating chamber, and an installation chamber in the left, middle, and right directions. A chimney 24 connected to the exhaust chamber is fixedly installed on the treatment box 1. After combustion, the detected flue gas is discharged from the chimney 24 into the atmosphere. A mixing structure is fixedly installed in the installation chamber. A first air inlet pipe 3 and a second air inlet pipe 4 are fixedly connected to the mixing structure. The first air inlet pipe 3 is filled with filtered associated gas (of which the CH4 content is not less than 15% and the lower heating value is not less than 5).The associated gas (5 MJ / Nm3) is introduced into the No. 2 intake pipe 4 for premixing with oxygen. A combustion chamber 5 is fixedly installed inside the heating chamber and is connected to the mixing structure. A combustion nozzle 6 connected to the mixing structure is installed inside the combustion chamber 5. A water outlet pipe 7 and a water inlet pipe 25 connected to the heating chamber are installed on one side of the treatment tank 1. Cold water is injected into the heating chamber through the water inlet pipe 25. The mixture of associated gas and oxygen is injected into the combustion chamber 5 through the combustion nozzle 6. Ignition is controlled by PLC. The mixture burns in the combustion chamber 5 to generate heat, which then ignites the cold water in the heating chamber. Heating is performed, and the heated water is discharged through the outlet pipe 7 for heat recovery. The combustion chamber 5 is connected to a flue pipe 8, which is connected to the exhaust chamber. The flue gas produced after combustion is discharged into the exhaust chamber through the flue pipe 8, and then discharged through the chimney 24. During this process, the flue gas is also detected by sensors to ensure it meets emission standards. However, in reality, incomplete combustion may occur. If the flue gas produced after incomplete combustion is directly discharged into the atmosphere, it may cause air pollution. Therefore, the following design is implemented: the flue pipe 8 also... The combustion chamber 5 is connected to a return air pipe 9, and an air guiding mechanism is installed inside the exhaust pipe 8. This mechanism guides the flue gas produced in the combustion chamber 5 into the exhaust chamber and also guides it back into the return air pipe 9. A pressure-driven mechanism is installed inside the combustion chamber 5, which drives the air guiding mechanism. When incomplete combustion occurs, the pressure inside the combustion chamber 5 is lower than during normal combustion. This pressure decrease triggers the pressure-driven mechanism, which then drives the air guiding mechanism to guide the flue gas from the incompletely combusted chamber. The flue gas enters the return pipe 9 and then reaches the filter device for filtration, removing the methane gas. It then re-enters the first intake pipe 3 for continued combustion or further treatment. Most cases of incomplete combustion of the associated gas are due to insufficient oxygen content; therefore, it is necessary to control the intake flow rate. The design incorporates a flow rate control mechanism within the first intake pipe 3. A pressure-driven mechanism activates this mechanism, causing incomplete combustion of the associated gas in the combustion chamber 5. This pressure-driven mechanism then adjusts the flow rate of the associated gas within the first intake pipe 3.

[0033] like Figure 2 , Figure 3 and Figure 4As shown, the mixing structure includes a mixing chamber 10 and two mixing inlet pipes 11. The mixing chamber 10 is fixedly installed in the mounting cavity. A mixing chamber 12 is formed inside the mixing chamber 10. One side of the mixing chamber 12 is a spherical concave surface, and the other side is a spherical convex surface. The air inlets of the first air inlet pipe 3 and the second air inlet pipe 4 are both located on the spherical convex surface of the mixing chamber 12. One end of each of the two mixing inlet pipes 11 is connected to the mixing chamber 12, and the air inlet ends of each of the two mixing inlet pipes 11 are located on the spherical concave surface of the mixing chamber 12. The projection positions of the air inlet ends of the two mixing inlet pipes 11 on the spherical convex surface form a cross structure with the first air inlet pipe 3 and the second air inlet pipe 4. The other end of each of the two mixing inlet pipes 11 is connected to the combustion nozzle 6. The associated gas enters the mixing chamber 12 through the first air inlet pipe 3. The associated gas is blown onto the spherical concave surface of the mixing chamber 12 and will travel along the inner wall of the spherical concave surface towards the center of the spherical concave surface. Simultaneously, oxygen enters the mixing chamber 12 through the second intake pipe 4. The oxygen is also blown onto the spherical concave surface of the mixing chamber 12 and moves along the inner wall of the spherical concave surface towards its center. The oxygen and associated gas collide and mix at the center of the spherical concave surface. After the collision, the mixed gas flow moves to both sides and moves in the opposite direction along the inner wall of the spherical concave surface until it reaches the inlet of the two mixing intake pipes 11. The mixed gas reaches the combustion nozzle 6 through the mixing intake pipes 11. The combustion nozzle 6 sprays out the mixed gas and ignites it, burning the mixed gas in the combustion chamber 5. When the oxygen and associated gas collide and reach the inlet of the mixing intake pipes 11, there is sufficient time for the associated gas and oxygen to mix together, resulting in a better mixing effect and reducing the problem of incomplete combustion due to uneven mixing.

[0034] like Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the gas guiding mechanism includes a three-way mounting block 13 and a three-way rotating block 14. The three-way mounting block 13 is fixedly installed inside the exhaust pipe 8. A T-shaped channel is opened on the three-way mounting block 13, and one end of the return gas pipe 9 is connected to the vertical channel of the T-shaped channel. The three-way rotating block 14 is rotatably installed inside the three-way mounting block 13 via a rotating shaft. A three-way channel is opened on the three-way rotating block 14. When the associated gas can burn completely, the pressure inside the combustion chamber 5 is relatively stable. At this time, the three-way rotating block 14 ensures that the flue gas after combustion will not enter the return gas pipe 9 (the state of the three-way rotating block 14 is as follows). Figure 6 (in the middle), so that the flue gas after combustion directly enters the flue gas chamber through the flue pipe 8, and then the flue gas is discharged through the chimney 24. When combustion is incomplete, the three-way rotating block 14 moves along... Figure 6 The valve rotates clockwise, allowing the flue gas produced by incomplete combustion to enter the return gas pipe 9, where the incompletely combusted flue gas is recovered or treated separately, reducing emissions and environmental pollution.

[0035] like Figure 2 , Figure 3 and Figure 4 As shown, the pressure drive mechanism includes a limiting sealing tube 15, a piston plate 16, a return spring 17, and a drive assembly. One end of the limiting sealing tube 15 is connected to one end of the exhaust pipe 8, and the limiting sealing tube 15 is fixedly installed inside the combustion chamber 5. The piston plate 16 is slidably fitted onto the limiting sealing tube 15. The two ends of the return spring 17 abut against the inner wall of the combustion chamber 5 and the piston plate 16, respectively. The combustion chamber 5 can be seen as a space with only one outlet. As the combustion of the associated gas changes, a relatively stable pressure is maintained inside the combustion chamber 5 during normal combustion. The gas pressure pushes the piston plate 16 to slide inside the combustion chamber 5, and the pressure inside the combustion chamber 5 will also change. After the pressure changes (incomplete combustion of the associated gas will cause the pressure inside the combustion chamber 5 to decrease), under the rebound action of the return spring 17, the piston plate 16 is driven to slide back to its original position. The drive assembly is used to convert the sliding action of the piston plate 16 inside the combustion chamber 5 into the rotation action of the three-way rotating block 14. Then, the piston plate 16 drives the three-way rotating block 14 to rotate, pouring the incompletely combusted flue gas into the return gas pipe 9 for recovery.

[0036] like Figure 3 , Figure 5 and Figure 7 As shown, the drive assembly includes a drive half-tooth rod 18 and a gear 19. One end of the drive half-tooth rod 18 is fixedly connected to one side of the piston plate 16, and the other end of the drive half-tooth rod 18 slides through the combustion chamber 5 and extends into the exhaust chamber. The rotating shaft of the three-way rotating block 14 passes through the three-way mounting block 13, the exhaust pipe 8, and is fixedly connected to the gear 19. The gear 19 meshes with the drive half-tooth rod 18. When the piston plate 16 slides, the piston plate 16 will drive the drive half-tooth rod 18 to rotate synchronously. When the drive half-tooth rod 18 slides, the drive half-tooth rod 18 will drive the gear 19 to rotate. The rotating gear 19 will drive the three-way rotating block 14 to rotate synchronously, so as to guide the insufficient flue gas into the return pipe 9 or discharge it into the exhaust chamber.

[0037] like Figure 3 , Figure 5 , Figure 8 and Figure 9As shown, the ventilation control mechanism includes an auxiliary frame 20, a flexible diaphragm 21, and a retraction / expansion assembly. The auxiliary frame 20 is fixedly installed inside the first intake pipe 3. Multiple retraction / expansion assemblies are used, with the flexible diaphragm 21 fitted onto each assembly. The retraction / expansion assemblies are arranged in a circular array on one side of the auxiliary frame 20. Each retraction / expansion assembly controls the extension size of the flexible diaphragm 21. Each retraction / expansion assembly includes a retraction / expansion rod 22 and a drive rod 23. Two retraction / expansion rods 22 are rotatably connected at their ends. One end of the retraction / expansion rod 22 is rotatably connected to the auxiliary frame 20, and the other end is rotatably connected to the drive rod 23. The moving rod 23 is rotatably connected, and the other end of the driving rod 23 is fixedly connected to the piston plate 16. The two retractable rods 22 and the driving rod 23 form a triangular structure. The driving rod 23 slides through the auxiliary frame 20. The working principle of the ventilation control mechanism is similar to that of a traditional umbrella. When the retractable assembly unfolds, it expands the flexible sleeve 21 to form a large-area seal, reducing the air intake cross-section in the first air intake pipe 3, thereby reducing the intake volume of the associated gas. When the retractable assembly retracts, the cross-sectional area of ​​the flexible sleeve 21 also shrinks, ensuring the flow rate in the first air intake pipe 3, thereby ensuring the intake volume of the associated gas. Figure 9 When the drive rod 23 moves to the right, the angle between the two retracting rods 22 decreases, which expands the flexible diaphragm 21. When the drive rod 23 moves to the left, the angle between the two retracting rods 22 increases, and the cross-sectional area of ​​the flexible diaphragm 21 decreases, thereby increasing the intake volume of the air-associated gas.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An oilfield station yard low heating value associated gas treatment device, characterized in that, The device includes a processing box (1), which has a working chamber. Two isolation plates (2) are fixedly installed inside the processing box (1). The two isolation plates (2) can divide the working chamber into three independent smoke exhaust chambers, heating chambers and installation chambers in the left, middle and right directions. A mixing structure is fixedly installed inside the installation cavity, and a first air inlet pipe (3) and a second air inlet pipe (4) are fixedly connected to the mixing structure. A combustion chamber (5) is fixedly installed inside the heating chamber. The combustion chamber (5) is connected to the mixing structure. A combustion nozzle (6) connected to the mixing structure is installed inside the combustion chamber (5). A water outlet pipe (7) and a water inlet pipe (25) connected to the heating chamber are installed on one side of the processing box (1). The combustion chamber (5) is connected to a flue pipe (8), which is connected to the exhaust chamber. The flue pipe (8) is also connected to a return pipe (9). A gas guiding mechanism is installed inside the flue pipe (8). The gas guiding mechanism can discharge the flue gas generated by combustion in the combustion chamber (5) into the exhaust chamber. The gas guiding mechanism can also discharge the flue gas generated by combustion in the combustion chamber (5) into the return pipe (9). The combustion chamber (5) is equipped with a pressure drive mechanism, which can drive the gas guide mechanism to work. An airflow control mechanism is provided inside the No. 1 air intake pipe (3), and the pressure drive mechanism can drive the airflow control mechanism to work. The mixing structure includes a mixing box (10) and two mixing air inlet pipes (11); the mixing box (10) is fixedly installed in the mounting cavity, and a mixing chamber (12) is opened in the mixing box (10). One side of the mixing chamber (12) is a spherical concave surface, and the other side of the mixing chamber (12) is a spherical convex surface. The air inlets of the first air inlet pipe (3) and the second air inlet pipe (4) are both located on the spherical convex surface of the mixing chamber (12). One end of each of the two mixing intake pipes (11) is connected to the mixing chamber (12). The intake ends of the two mixing intake pipes (11) are located on the spherical concave surface of the mixing chamber (12). The projection positions of the intake ends of the two mixing intake pipes (11) on the spherical convex surface form a cross structure with the first intake pipe (3) and the second intake pipe (4). The other end of each of the two mixing intake pipes (11) is connected to the combustion nozzle (6).

2. The low heating value associated gas treatment device for an oilfield station warehouse according to claim 1, characterized in that, The air guiding mechanism includes a three-way mounting block (13) and a three-way rotating block (14); the three-way mounting block (13) is fixedly installed inside the exhaust pipe (8), and a T-shaped channel is opened on the three-way mounting block (13). One end of the return air pipe (9) is connected to the vertical channel of the T-shaped channel. The three-way rotating block (14) is rotatably installed inside the three-way mounting block (13) through a rotating shaft, and a three-way channel is opened on the three-way rotating block (14).

3. The low heating value associated gas treatment device for an oilfield station warehouse according to claim 2, characterized in that, The pressure drive mechanism includes a limiting sealing tube (15), a piston plate (16), a return spring (17), and a drive assembly; one end of the limiting sealing tube (15) is connected to one end of the exhaust pipe (8), and the limiting sealing tube (15) is fixedly installed inside the combustion chamber (5); the piston plate (16) is slidably fitted on the limiting sealing tube (15); and the two ends of the return spring (17) abut against the inner wall of the combustion chamber (5) and the piston plate (16) respectively. The drive assembly is used to convert the sliding motion of the piston plate (16) in the combustion chamber (5) into the rotational motion of the three-way rotating block (14).

4. The low heating value associated gas treatment device for an oilfield station warehouse according to claim 3, characterized in that, The drive assembly includes a drive half-tooth rod (18) and a gear (19); one end of the drive half-tooth rod (18) is fixedly connected to one side of the piston plate (16), and the other end of the drive half-tooth rod (18) slides through the combustion chamber (5) and extends into the exhaust chamber. The rotating shaft of the three-way rotating block (14) passes through the three-way mounting block (13), the exhaust pipe (8) and is fixedly connected to the gear (19). The gear (19) meshes with the drive half-tooth rod (18).

5. The oilfield battery low heating value associated gas treatment apparatus according to claim 4, wherein, The ventilation control mechanism includes an auxiliary frame (20), a flexible diaphragm (21), and a retraction assembly; the auxiliary frame (20) is fixedly installed inside the first air inlet pipe (3), and there are multiple retraction assemblies, with the flexible diaphragm (21) fitted onto multiple retraction assemblies; Multiple retractable components are arranged in a circular array on one side of the auxiliary frame (20), and the multiple retractable components are used to control the extension size of the flexible sheath (21).

6. The low heating value associated gas treatment device for an oilfield station warehouse according to claim 5, characterized in that, The retractable assembly includes a retractable rod (22) and a drive rod (23); there are two retractable rods (22), the ends of the two retractable rods (22) are rotatably connected, the end of one retractable rod (22) is rotatably connected to the auxiliary frame (20), the end of the other retractable rod (22) is rotatably connected to the drive rod (23), and the other end of the drive rod (23) is fixedly connected to the piston plate (16); The drive rod (23) slides through the auxiliary frame (20).

7. The low heating value associated gas treatment device for an oilfield station warehouse according to claim 1, characterized in that, A chimney (24) connected to the exhaust chamber is fixedly installed on the processing box (1).

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