Gas-liquid mixed transportation system of natural gas compressor

Abstract

The invention discloses a gas-liquid mixed transportation system of a natural gas compressor, and relates to the technical field of wellhead natural gas pressurization. The gas-liquid mixed transportation system comprises a main control module, a liquid level checking module, a compression module and a gas inlet module. Gas and liquid separated by a compressor system can be conveyed to a user pipeline or a storage tank together under the condition of no discharge during continuous operation, so that the separated liquid does not need to be discharged to a sewage tank or a sewage pool for unified treatment, no gas discharge and no sewage discharge are realized, and the operation is simple and convenient. And air pollution caused by gas waste and gas emission when sewage is discharged is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of wellhead natural gas pressurization, and in particular to a natural gas compressor gas-liquid mixed transmission system. Background Art

[0002] The gas-liquid mixed transmission system of the reciprocating piston natural gas compressor is to separate the free water and other liquid media in the medium during production operations to ensure the normal production and operation of the compressor, and to transport the separated liquid to the user pipeline or storage tank together with the gas through the process system. It can ensure the stable and continuous operation of the compressor, without external emissions, and can also mix gas and liquid together

[0003] Because reciprocating piston compressors cannot compress liquids, if liquid enters the compressor cylinder, liquid hammer will occur, which may cause damage to compressor components at the least and may cause safety accidents at the worst. Existing natural gas compressor equipment separates free water or other liquid media in the gas through a separator, and discharges it into a sewage collection tank or a designated sewage discharge area through a sewage discharge system.

[0004] Due to restrictions such as on-site working conditions or environmental protection requirements, it may not be allowed to discharge sewage, so it is necessary to pressurize and recover gas and liquid together. Here we provide a natural gas compressor gas-liquid mixed transmission system. Summary of the invention

[0005] The purpose of the present invention is to provide a natural gas compressor gas-liquid mixed transmission system to solve the problem in the prior art that due to restrictions such as on-site working conditions or environmental protection requirements, it may not be allowed to discharge sewage, so it is necessary to pressurize and recover gas and liquid together.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solutions:

[0007] A gas-liquid mixed transmission system for a natural gas compressor, comprising a gas-liquid mixed transmission system; the gas-liquid mixed transmission system comprises a main control module, a liquid level detection module, a compression module and an air intake module; wherein the modules are connected wirelessly and / or electrically;

[0008] The liquid level detection module performs detection, and when the liquid reaches the specified value, it is operated through the main control module. The main control module first controls the separator for separation, and the gas separated by the separator enters the compression module for pressurization and compression, and then the liquid is transported to the mixing tank, and the pressurized and compressed gas is transported through the air intake module.

[0009] As a further scheme of the present invention: the separation tank; the side end of the separation tank is connected with a compressor body; the side end of the compressor body is connected with a sewage recovery valve; the bottom end of the separation tank is connected with a liquid inlet valve No. 1; the bottom end of the No. 1 liquid inlet valve is connected with a mixing tank No. 1; a No. 1 pressure-equalizing valve is connected between the separation tank and the No. 1 mixing tank; the bottom end of the separation tank is connected with a No. 2 liquid inlet valve; the bottom end of the No. 2 liquid inlet valve is connected with a No. 2 mixing tank; a No. 2 pressure-equalizing valve is connected between the separation tank and the No. 2 mixing tank; the side end of the compressor body is connected with an No. 1 air intake valve, and the side end of the No. 1 air intake valve is connected to the No. 1 mixing tank; the side end of the compressor body is connected with a No. 2 air intake valve, and the side end of the No. 2 air intake valve is connected to the No. 2 mixing tank; the side end of the No. 1 mixing tank is connected with an air supply valve; the side end of the No. 2 mixing tank is connected with an No. 2 air supply valve.

[0010] As a further scheme of the present invention: the separation tank; the side end of the separation tank is connected with a compressor body; the side end of the compressor body is connected with a sewage recovery valve; the bottom end of the separation tank is connected with a liquid inlet valve No. 1; the bottom end of the No. 1 liquid inlet valve is connected with a mixing tank No. 1; a No. 1 pressure-equalizing valve is connected between the separation tank and the No. 1 mixing tank; the bottom end of the separation tank is connected with a No. 2 liquid inlet valve; the bottom end of the No. 2 liquid inlet valve is connected with a No. 2 mixing tank; a No. 2 pressure-equalizing valve is connected between the separation tank and the No. 2 mixing tank; the side end of the compressor body is connected with an No. 1 air intake valve, and the side end of the No. 1 air intake valve is connected to the No. 1 mixing tank; the side end of the compressor body is connected with a No. 2 air intake valve, and the side end of the No. 2 air intake valve is connected to the No. 2 mixing tank; the side end of the No. 1 mixing tank is connected with an air supply valve; the side end of the No. 2 mixing tank is connected with an No. 2 air supply valve.

[0011] As a further solution of the present invention: a sound-absorbing bottom plate is fixedly connected to the interior of the noise reduction shell; a plurality of groups of sound-absorbing holes are opened inside the sound-absorbing bottom plate, and the sound-absorbing holes are arranged below the compressor body.

[0012] As a further solution of the present invention: a sound absorbing board is fixedly connected to the side end of the sound insulation board; and a sound guide hole is opened inside the sound absorbing board.

[0013] As a further solution of the present invention: a noise reduction top plate is fixedly connected to the inner side wall of the top end of the noise reduction shell; and the noise reduction top plate is arranged above the compressor body.

[0014] As a further solution of the present invention: a sealing door is hinged on the side end of the noise reduction shell; and a sealing gasket is installed on the side end of the sealing door.

[0015] As a further solution of the present invention: a buffer block is fixedly connected to the side end of the push plate; the buffer block is arranged on one side of the oil hole.

[0016] The beneficial effects of the present invention are as follows: the liquid and gas are separated by a separation tank and transported to the No. 1 mixing tank and the No. 2 mixing tank respectively, and the gas and the liquid separated by the compressor system can be transported to the user pipeline or storage tank together without external emission during continuous operation, so that the separated liquid does not need to be discharged into a sewage tank or a sewage pool for unified treatment, and no gas emission or sewage emission is achieved to the outside, thereby avoiding the waste of gas while discharging sewage and the air pollution caused by gas emission. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a flow chart of the system of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the separation tank in the present invention;

[0020] Figure 3 It is a three-dimensional diagram of the noise reduction shell structure in the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the compressor body in the present invention;

[0022] Figure 5 The present invention Figure 4 Enlarged view of point A in the middle.

[0023] In the figure: 1. separation tank; 2. No. 1 mixing tank; 3. No. 2 mixing tank; 4. compressor body; 5. sewage recovery valve; 6. No. 1 liquid inlet valve; 7. No. 1 pressure relief valve; 8. No. 2 liquid inlet valve; 9. No. 2 pressure relief valve; 10. No. 1 air inlet valve; 11. No. 2 air inlet valve; 12. No. 1 air supply valve; 13. No. 2 air supply valve; 14. noise reduction shell; 15. sealing door; 17. noise reduction top plate; 18. sound absorbing bottom plate; 19. sound absorbing hole; 20. sound insulation board; 21. sound absorbing board; 22. sound guide hole; 23. hydraulic cylinder; 24. push plate; 25. push rod; 26. oil hole; 27. buffer block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1-Figure 5As shown, a natural gas compressor gas-liquid mixed transmission system includes a gas-liquid mixed transmission system; the gas-liquid mixed transmission system includes a main control module, a liquid level detection module, a compression module and an air intake module; wherein the modules are connected wirelessly and / or electrically;

[0026] The liquid level detection module performs detection, and when the liquid reaches the specified value, it is operated through the main control module. The main control module first controls the separator for separation, and the gas separated by the separator enters the compression module for pressurization and compression, and then the liquid is transported to the mixing tank, and the pressurized and compressed gas is transported through the air intake module.

[0027] The separation tank 1; the side end of the separation tank 1 is connected to a compressor body 4; the side end of the compressor body 4 is connected to a sewage recovery valve 5; the bottom end of the separation tank 1 is connected to a No. 1 liquid inlet valve 6; the bottom end of the No. 1 liquid inlet valve 6 is connected to a No. 1 mixing tank 2; a No. 1 pressure equalizing valve 7 is connected between the separation tank 1 and the No. 1 mixing tank 2; the bottom end of the separation tank 1 is connected to a No. 2 liquid inlet valve 8; the bottom end of the No. 2 liquid inlet valve 8 is connected to a No. 2 mixing tank 3; A No. 2 equalizing valve 9 is connected between the separation tank 1 and the No. 2 mixing tank 3; the side end of the compressor body 4 is connected to the No. 1 air intake valve 10, and the side end of the No. 1 air intake valve 10 is connected to the No. 1 mixing tank 2; the side end of the compressor body 4 is connected to the No. 2 air intake valve 11, and the side end of the No. 2 air intake valve 11 is connected to the No. 2 mixing tank 3; the side end of the No. 1 mixing tank 2 is connected to the No. 1 air supply valve 12; the side end of the No. 2 mixing tank 3 is connected to the No. 2 air supply valve 13.

[0028] Separation tank 1 is a separator for separating liquid. The separated liquid is mixed with the pressurized gas of compressor body 4 through mixing tank 1 and mixing tank 3 and then transported into the external transmission pipeline. Under the condition that the liquid level does not reach the set mixed transmission level, only valves of mixing tank 1 and mixing tank 3 are opened. The air supply port of the compressor is directly connected to the external transmission pipeline after passing through mixing tank 1. When the liquid in separation tank 1 reaches a certain level, the liquid level sensor is used to control the control system to open liquid inlet valve 8 and pressure relief valve 9. At this time, separation tank 1 maintains pressure balance with mixing tank 3 through pressure relief valve 9. The liquid inside the separation tank 1 enters the No. 2 mixing tank 3 under the action of gravity. After a certain period of time, the No. 2 liquid inlet valve 8 and the No. 2 pressure-equalizing valve 9 are closed, the No. 2 air inlet valve 11 and the No. 2 air delivery valve 13 are opened, and the compressor body 4 is connected to the No. 2 mixing tank 3 and the external transmission pipeline to mix the separated liquid with the pressurized gas of the compressor body 4 and transport it into the external transmission pipeline. At the same time, the No. 1 air inlet valve 10 and the No. 1 air delivery valve 12 are closed, the No. 1 pressure-equalizing valve 7 is opened and connected to the No. 1 mixing tank 2. After the No. 1 mixing tank 2 and the separation tank 1 are equalized in pressure, the No. 1 liquid inlet valve 6 is opened and the liquid enters the No. 1 mixing tank under the action of gravity. 2. After a certain period of time, the No. 1 liquid inlet valve 6 and the No. 1 pressure-equalizing valve 7 are closed, the No. 1 air inlet valve 10 and the No. 2 air delivery valve 13 are opened, and the air delivery port of the compressor body 4 is connected to the No. 1 mixing tank 2 and the external transmission pipeline, and the separated liquid is mixed with the pressurized gas of the compressor body 4 and transported into the external transmission pipeline. At the same time, the No. 2 air inlet valve 11 and the No. 2 air delivery valve 13 are closed, and the No. 2 pressure-equalizing valve 9 is opened to equalize the pressure with the No. 1 mixing tank 2. After the No. 1 mixing tank 2 and the separation tank 1 are equalized, the No. 2 liquid inlet valve 8 is opened, and the liquid enters the No. 2 mixing tank 3 under the action of gravity, and switches back and forth in this order until the liquid in the separation tank 1 is The position reaches the set stop mixed infusion position, and finally enters the state where only the No. 1 air inlet valve 10 and the No. 1 air supply valve 12 are opened. The air supply port of the compressor body 4 is directly connected to the external transmission pipeline after passing through the No. 1 mixed infusion tank 2, so that the gas and the liquid separated by the compressor system can be transported to the user pipeline or storage tank together without external emission during continuous operation, so that there is no need to discharge the separated liquid into the sewage tank or sewage pool for unified treatment, so that there is no gas emission and no sewage emission to the outside, avoiding the waste of gas while discharging sewage and the air pollution caused by gas emission.

[0029] The side end of the compressor body 4 is fixedly connected to a noise reduction shell 14; the inner side wall of the noise reduction shell 14 is fixedly connected to a hydraulic cylinder 23; the interior of the hydraulic cylinder 23 is slidably connected to a push plate 24; the interior of the push plate 24 is provided with an oil hole 26; the side end of the push plate 24 is fixedly connected to a push rod 25; the side end of the push rod 25 is fixedly connected to a sound insulation board 20; the inner side wall of the hydraulic cylinder 23 is fixedly connected to the push rod 25.

[0030] The compressor body 4 will generate a lot of noise when it is in operation, which will seriously pollute the surrounding environment. The compressor body 4 is surrounded by a noise reduction shell 14, and the noise diffusion of the compressor body 4 is reduced by the noise reduction shell 14. When the compressor body 4 generates noise during operation, the noise is guided to the inside of the sound absorbing board 21 through the sound guide hole 22, and absorbed by the sound absorbing cotton material of the sound absorbing board 21, thereby reducing the noise of the compressor body 4 and reducing the noise diffusion of the compressor body 4. The noise of the compressor body 4 will cause the surrounding to vibrate. The sound insulation board 20 is arranged on one side of the compressor body 4. The noise vibration will cause the sound insulation board 20 to slide, and the sliding of the sound insulation board 20 will cause the push rod 25 to slide. The sliding of the push rod 25 will cause the push plate 24 to slide. The sliding of the push plate 24 will cause the hydraulic oil inside the hydraulic cylinder 23 to flow in the oil hole 26. The flow of hydraulic oil will buffer the sliding of the push rod 25, thereby reducing the impact of the vibration on the noise reduction shell 14. A spring is arranged inside the hydraulic cylinder 23, and the push plate 24 can be reset by the elasticity of the spring.

[0031] A sound-absorbing bottom plate 18 is fixedly connected to the interior of the noise reduction shell 14 ; a plurality of groups of sound-absorbing holes 19 are opened inside the sound-absorbing bottom plate 18 , and the sound-absorbing holes 19 are arranged below the compressor body 4 .

[0032] The compressor body 4 will generate a lot of noise when working. The noise can be guided to the sound-absorbing bottom plate 18 by the sound-absorbing holes 19. The sound-absorbing bottom plate 18 can absorb the noise, reduce the diffusion of noise from the bottom end of the compressor body 4, and improve the noise reduction shell 14's limit on noise.

[0033] A sound absorbing plate 21 is fixedly connected to the side end of the sound insulating plate 20 ; a sound guide hole 22 is opened inside the sound absorbing plate 21 .

[0034] The compressor body 4 will generate a lot of noise when operating, which will seriously pollute the surrounding environment. The compressor body 4 is surrounded by a noise reduction shell 14, and the noise diffusion of the compressor body 4 is reduced by the noise reduction shell 14. When the compressor body 4 generates noise during operation, the noise is guided to the inside of the sound absorbing board 21 through the sound guide hole 22 and absorbed by the sound absorbing cotton material of the sound absorbing board 21, thereby reducing the noise of the compressor body 4 and reducing the noise diffusion of the compressor body 4.

[0035] A noise reduction top plate 17 is fixedly connected to the inner side wall of the top end of the noise reduction shell 14 ; the noise reduction top plate 17 is arranged above the compressor body 4 .

[0036] The noise reduction top plate 17 is arranged at the top of the compressor body 4. The noise reduction top plate 17 is recessed so that the noise can be absorbed into the inside of the noise reduction top plate 17, thereby reducing the noise diffusion to other directions. The noise reduction top plate 17 cooperates with the sound-absorbing bottom plate 18 to reduce the diffusion of the noise of the compressor body 4.

[0037] A sealing door 15 is hinged at the side end of the noise reduction shell 14 ; a sealing gasket is installed at the side end of the sealing door 15 .

[0038] Before work, close the sealing door 15 on the noise reduction shell 14 to form a sealed space inside the noise reduction shell 14, which can reduce the diffusion of noise. When the compressor body 4 needs to be operated, open the sealing door 15. A sealing gasket is connected to one side of the sealing door 15. The sealing gasket can increase the sealing performance between the sealing door 15 and the noise reduction shell 14, which can reduce the diffusion of noise.

[0039] A buffer block 27 is fixedly connected to the side end of the push plate 24 ; the buffer block 27 is arranged at one side of the oil hole 26 .

[0040] The sliding of the push plate 24 will cause the hydraulic oil to flow inside the oil hole 26, and the flow of the hydraulic oil will impact the buffer block 27. The buffer block 27 is made of sponge material. The elasticity of the buffer block 27 can buffer the flow of the hydraulic oil, thereby buffering the sliding of the push rod 25 and reducing the impact of noise on the noise reduction shell 14.

[0041] The working principle of the present invention is as follows: the separation tank 1 is a separator for separating liquid, and the separated liquid is mixed and transported into the external transmission pipeline together with the gas pressurized by the compressor body 4 through the No. 1 mixing tank 2 and the No. 2 mixing tank 3. Under the condition that the liquid level does not reach the set mixed transmission level, only the valves of the No. 1 mixing tank 2 and the No. 2 mixing tank 3 are opened, and the compressor air supply port is directly connected to the external transmission pipeline after passing through the No. 1 mixing tank 2. After the liquid in the separation tank 1 reaches a certain liquid level, the liquid level sensor is linked to the control system to control the No. 2 liquid inlet valve 8 and the No. 2 pressure relief valve 9 to open. At this time, the separation tank 1 is connected to the No. 2 mixing tank through the No. 2 pressure relief valve 9. Tank 3 maintains pressure balance, and the liquid inside separation tank 1 enters No. 2 mixing tank 3 under the action of gravity. After a certain period of time, No. 2 liquid inlet valve 8 and No. 2 pressure equalizing valve 9 are closed, No. 2 air inlet valve 11 and No. 2 air delivery valve 13 are opened, and the compressor body 4 is connected to No. 2 mixing tank 3 and the external transmission pipeline to mix the separated liquid with the pressurized gas of the compressor body 4 into the external transmission pipeline. At the same time, No. 1 air inlet valve 10 and No. 1 air delivery valve 12 are closed, No. 1 pressure equalizing valve 7 is opened and connected to No. 1 mixing tank 2. After the pressure of No. 1 mixing tank 2 and separation tank 1 is equalized, No. 1 liquid inlet valve 6 is opened and the liquid enters No. 1 under the action of gravity. No. 1 mixed tank 2, after a certain period of time, No. 1 liquid inlet valve 6 and No. 1 pressure equalizing valve 7 are closed, No. 1 air inlet valve 10 and No. 2 air delivery valve 13 are opened, and the air delivery port of the compressor body 4 is connected to the No. 1 mixed tank 2 and the external transmission pipeline, and the separated liquid is mixed with the pressurized gas of the compressor body 4 and transported into the external transmission pipeline. At the same time, No. 2 air inlet valve 11 and No. 2 air delivery valve 13 are closed, No. 2 pressure equalizing valve 9 is opened to equalize the pressure with No. 1 mixed tank 2, after the pressure of No. 1 mixed tank 2 and separation tank 1 is equalized, No. 2 liquid inlet valve 8 is opened, and the liquid enters No. 2 mixed tank 3 under the action of gravity, and switches back and forth in this sequence until the separation tank 1 The liquid level reaches the set stop mixed infusion position, and finally enters the state where only the No. 1 air inlet valve 10 and the No. 1 air delivery valve 12 are opened. The air delivery port of the compressor body 4 is directly connected to the external transmission pipeline after passing through the No. 1 mixed infusion tank 2, so that the gas and the liquid separated by the compressor system can be transported to the user pipeline or storage tank together without external discharge during continuous operation, so that the separated liquid does not need to be discharged into the sewage tank or sewage pool for unified treatment, so that there is no gas discharge or sewage discharge to the outside, avoiding the waste of gas while discharging sewage and the air pollution caused by gas discharge;The compressor body 4 will generate a lot of noise when it is in operation, which will seriously pollute the surrounding environment. The compressor body 4 is surrounded by a noise reduction shell 14, and the noise diffusion of the compressor body 4 is reduced by the noise reduction shell 14. When the compressor body 4 generates noise during operation, the noise is guided to the inside of the sound absorbing plate 21 through the sound guide hole 22, and absorbed by the sound absorbing cotton material of the sound absorbing plate 21, thereby reducing the noise of the compressor body 4 and reducing the noise diffusion of the compressor body 4. The noise of the compressor body 4 will cause the surrounding to vibrate. The sound insulation plate 20 is arranged on one side of the compressor body 4. The noise vibration will cause the sound insulation plate 20 to slide, and the sliding of the sound insulation plate 20 will cause the push rod 25 to slide, and the sliding of the push rod 25 will cause the push plate 24 to slide. The sliding of the push plate 24 will cause the hydraulic oil inside the hydraulic cylinder 23 to flow in the oil hole 26. The flow of hydraulic oil will buffer the sliding of the push rod 25, thereby reducing the impact of vibration on the noise reduction shell 14. A spring is arranged inside the hydraulic cylinder 23, and the push plate 24 can be reset by the elasticity of the spring;

[0042] The sliding of the push plate 24 will cause the hydraulic oil to flow inside the oil hole 26, and the flow of the hydraulic oil will impact the buffer block 27. The buffer block 27 is made of sponge material. The elasticity of the buffer block 27 can buffer the flow of the hydraulic oil, thereby buffering the sliding of the push rod 25 and reducing the impact of noise on the noise reduction shell 14.

[0043] Before working, the sealing door 15 is closed on the noise reduction shell 14, so that a sealed space is formed inside the noise reduction shell 14, which can reduce the diffusion of noise. When the compressor body 4 needs to be operated, the sealing door 15 can be opened. A sealing gasket is connected to one side of the sealing door 15. The sealing gasket can increase the sealing performance between the sealing door 15 and the noise reduction shell 14, which can reduce the diffusion of noise.

[0044] The compressor body 4 will generate a lot of noise when working. The noise can be guided to the sound-absorbing bottom plate 18 by the sound-absorbing holes 19. The sound-absorbing bottom plate 18 can absorb the noise, reduce the diffusion of the noise from the bottom end of the compressor body 4, and improve the noise reduction shell 14.

[0045] The noise reduction top plate 17 is arranged at the top of the compressor body 4. The noise reduction top plate 17 is recessed so that the noise can be absorbed into the inside of the noise reduction top plate 17, thereby reducing the noise diffusion to other directions. The noise reduction top plate 17 cooperates with the sound-absorbing bottom plate 18 to reduce the diffusion of the noise of the compressor body 4.

[0046] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A natural gas compressor gas-liquid mixed transmission system, characterized in that: It includes a gas-liquid mixed transmission system; the gas-liquid mixed transmission system includes a main control module, a liquid level detection module, a compression module and an air intake module; wherein the modules are connected wirelessly and / or electrically; The liquid level detection module performs detection, and when the liquid reaches the specified value, it is operated through the main control module. The main control module first controls the separator for separation, and the gas separated by the separator enters the compression module for pressurization and compression, and then the liquid is transported to the mixing tank, and the pressurized and compressed gas is transported through the air intake module.

2. A natural gas compressor gas-liquid mixed transmission system according to claim 1, characterized in that: The separation tank (1); the side end of the separation tank (1) is connected to a compressor body (4); the side end of the compressor body (4) is connected to a sewage recovery valve (5); the bottom end of the separation tank (1) is connected to a No. 1 liquid inlet valve (6); the bottom end of the No. 1 liquid inlet valve (6) is connected to a No. 1 mixing tank (2); a No. 1 pressure equalizing valve (7) is connected between the separation tank (1) and the No. 1 mixing tank (2); the bottom end of the separation tank (1) is connected to a No. 2 liquid inlet valve (8); the bottom end of the No. 2 liquid inlet valve (8) is connected to a No. 2 mixing tank (3) A No. 2 equalizing valve (9) is connected between the separation tank (1) and the No. 2 mixing tank (3); a No. 1 air intake valve (10) is connected to the side end of the compressor body (4), and a No. 1 air intake valve (10) is connected to the side end of the No. 1 mixing tank (2); a No. 2 air intake valve (11) is connected to the side end of the compressor body (4), and a No. 2 air intake valve (11) is connected to the side end of the No. 2 mixing tank (3); a No. 1 air supply valve (12) is connected to the side end of the No. 1 mixing tank (2); and a No. 2 air supply valve (13) is connected to the side end of the No. 2 mixing tank (3).

3. A natural gas compressor gas-liquid mixed transmission system according to claim 2, characterized in that: The side end of the compressor body (4) is fixedly connected to a noise reduction shell (14); the inner side wall of the noise reduction shell (14) is fixedly connected to a hydraulic cylinder (23); the interior of the hydraulic cylinder (23) is slidably connected to a push plate (24); the interior of the push plate (24) is provided with an oil hole (26); the side end of the push plate (24) is fixedly connected to a push rod (25); the side end of the push rod (25) is fixedly connected to a sound insulation board (20); the inner side wall of the hydraulic cylinder (23) is fixedly connected to the push rod (25).

4. A natural gas compressor gas-liquid mixed transmission system according to claim 3, characterized in that: A sound-absorbing bottom plate (18) is fixedly connected to the interior of the noise reduction shell (14); a plurality of groups of sound-absorbing holes (19) are provided inside the sound-absorbing bottom plate (18), and the sound-absorbing holes (19) are provided below the compressor body (4).

5. A natural gas compressor gas-liquid mixed transmission system according to claim 3, characterized in that: A sound absorbing plate (21) is fixedly connected to the side end of the sound insulation plate (20); a sound guide hole (22) is provided inside the sound absorbing plate (21).

6. A natural gas compressor gas-liquid mixed transmission system according to claim 3, characterized in that: A noise reduction top plate (17) is fixedly connected to the inner side wall of the top end of the noise reduction shell (14); the noise reduction top plate (17) is arranged above the compressor body (4).

7. A natural gas compressor gas-liquid mixed transmission system according to claim 3, characterized in that: A sealing door (15) is hingedly connected to the side end of the noise reduction shell (14); and a sealing pad is installed on the side end of the sealing door (15).

8. The natural gas compressor gas-liquid mixed transmission system according to claim 3, characterized in that: A buffer block (27) is fixedly connected to the side end of the push plate (24); the buffer block (27) is arranged on one side of the oil hole (26).

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