Gas-liquid mixed transportation structure of natural gas compressor
By designing a gas-liquid mixed transport structure of a natural gas compressor including an intake separation tank, a sewage recovery pipe fitting and an external intake pipe fitting, the problem that the reciprocating piston compressor cannot compress liquid and the existing equipment cannot recover sewage is achieved. The separation, recovery and mixing of gas and liquids ensures the stable operation of the compressor and the emission-free target.
Patent Information
- Application Number
- CN202411830554.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-02-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The reciprocating piston compressor cannot compress the liquid, causing the liquid to hit the scene, which can cause damage to the parts at the least, and may cause safety accidents at the worst. The existing natural gas compressor equipment cannot discharge sewage under working conditions or environmental protection requirements, resulting in the need Gas and liquids are recharged together.
A natural gas compressor gas-liquid mixed transport structure is designed, including A intake separation tank, B intake separation tank, compressor, air intake pipe network and air supply pipeline. Through the combination of the intake separation tank, sewage recovery pipe fittings and external intake pipe fittings, the separation, recovery and mixing of gas and liquid are achieved.
It realizes the separation and recovery of liquids in the compressor system, avoids liquid strike accidents, and transports the separated liquid with the pressurized gas to the gas supply pipeline, meeting the requirements of no emissions and ensuring the compressor's Stable operation.
Smart Images
Figure CN119435993A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of gas-liquid mixed transmission, and in particular to a gas-liquid mixed transmission structure of a natural gas compressor. Background Art
[0002] Wellhead natural gas and untreated natural gas contain a large or small amount of free water, hydrocarbons and other liquid media. Through this process system, the liquid medium in the gas is separated without affecting the normal operation of the natural gas compressor, and the separated liquid is transported to the gas pipeline or container together with the gas medium, so that the mixed transportation of liquid and gas does not discharge sewage to the outside;
[0003] Since reciprocating piston compressors cannot compress liquids, if liquid enters the compressor cylinder, liquid hammer will occur, which may cause damage to compressor components or even safety accidents. Existing natural gas compressor equipment separates free water or other liquid media from the gas through a separator and discharges them into a sewage collection tank or a designated sewage discharge area through a sewage discharge system. However, due to restrictions such as on-site working conditions or environmental protection requirements, sewage may not be discharged, so it is necessary to pressurize and recover gas and liquid together. To this end, we provide a natural gas compressor gas-liquid mixed transmission structure. Summary of the invention
[0004] The technical problems solved by the present invention are:
[0005] (1) Since reciprocating piston compressors cannot compress liquids, if liquid enters the compressor cylinder, liquid hammer will occur, which may cause damage to compressor components or even cause safety accidents;
[0006] (2) Existing natural gas compressor equipment separates free water or other liquid media from the gas through a separator and discharges it into a sewage collection tank or a designated sewage discharge area through a sewage discharge system. However, due to restrictions such as on-site working conditions or environmental protection requirements, sewage may not be discharged, so it is necessary to pressurize and recover the gas and liquid together.
[0007] The present invention can be implemented by the following technical scheme: a gas-liquid mixed transmission structure of a natural gas compressor, comprising an air intake separation tank A, an air intake separation tank B, a compressor, an air intake pipe network and an air delivery pipeline; the compressor is provided with a compressor air intake port, a compressor air delivery port and a compressor sewage outlet; the air intake pipe network is connected to the air intake separation tank A and the air intake separation tank B respectively through two air intake pipes, the two air intake pipes are connected through a flat pressure pipe, the air intake separation tank A and the air intake separation tank B are connected to the compressor through the air delivery pipe The A air intake separation tank and the B air intake separation tank are connected with the compressor air outlet through the sewage recovery pipe fitting, the A air intake separation tank and the B air intake separation tank are connected with the compressor air supply port through the external air intake pipe fitting, the compressor air supply port is connected with the air supply pipeline through the external bypass pipe fitting, the bottoms of the A air intake separation tank and the B air intake separation tank are provided with external check pipe fittings, and the external check pipe fittings are connected with the air supply pipeline, and the A air intake separation tank and the B air intake separation tank are provided with sensors.
[0008] A further technical improvement of the present invention is that each intake pipe comprises an intake pipe and an intake valve, one end of the two intake pipes is connected to the intake pipe network, the other end of the two intake pipes is respectively connected to the A intake separation tank and the B intake separation tank, and the two intake valves are respectively arranged on the two intake pipes.
[0009] A further technical improvement of the present invention is that the equalizing pressure pipe fittings include an equalizing pressure pipe and an AB tank equalizing pressure valve, the two ends of the equalizing pressure pipe are respectively connected to two air inlet pipes, and the AB tank equalizing pressure valve is arranged on the equalizing pressure pipe.
[0010] A further technical improvement of the present invention is that the air supply pipe includes two air supply pipes and two air supply valves, one end of the two air supply pipes are merged and connected to the compressor air inlet, the other end of the two air supply pipes are respectively connected to the A air intake separation tank and the B air intake separation tank, and the two air supply valves are respectively arranged on the two air supply pipes.
[0011] A further technical improvement of the present invention is that each sewage recovery pipe fitting includes a sewage recovery pipe and a sewage recovery valve, one end of the two sewage recovery pipes are respectively connected to the A air intake separation tank and the B air intake separation tank, the other ends of the two sewage recovery pipes are merged and connected to the compressor discharge port, and the two sewage recovery valves are installed on the two sewage recovery pipes.
[0012] A further technical improvement of the present invention is that the external air intake pipe comprises two external air intake pipes and two external air intake valves, one end of the two external air intake pipes are respectively connected to the A air intake separation tank and the B air intake separation tank, the other ends of the two external air intake pipes are merged and connected to the compressor air delivery port, and the two external air intake valves are respectively arranged on the two external air intake pipes.
[0013] A further technical improvement of the present invention is that the external transmission bypass pipe comprises an external transmission bypass pipe and an external transmission bypass valve, one end of the external transmission bypass pipe is connected to the air supply pipeline, and the other end of the external transmission bypass pipe is merged with two external transmission air inlet pipes and connected to the compressor air supply port.
[0014] A further technical improvement of the present invention is that the external transmission check pipe fitting includes two external transmission check pipes and two external transmission check valves, one end of the two external transmission check pipes are respectively connected to the A air intake separation tank and the B air intake separation tank, and the other ends of the two external transmission check pipes are merged and connected to the air supply pipeline.
[0015] A further technical improvement of the present invention is that the sensor on the A air intake separation tank is an LT V101 liquid level sensor, and the sensor on the B air intake separation tank is an LT V102 liquid level sensor.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] (1) The A air intake separation tank intake valve and the A air intake separation tank air delivery valve are opened to enable the A air intake separation tank to play the role of air intake separation. The gas after separating the free water enters the compressor air inlet through the valve A air intake separation tank intake valve and the A air intake separation tank air delivery valve. During the operation of the A air intake separation tank, when there is sewage discharged from other separators in the compressor system, the A air intake separation tank sewage recovery valve is opened and the sewage enters the A air intake separation tank for recovery. At the same time, the B air intake separation tank external transmission intake valve and the B air intake separation tank external transmission check valve are opened and connected to the compressor air delivery port and the air delivery pipeline, and the previously separated and recovered liquid is transported together with the compressed and pressurized gas of the compressor into the air delivery pipeline. When the liquid level separated and recovered by the A air intake separation tank is After reaching the standard, the LTV101 liquid level sensor and the PLC control system are linked, the external transmission bypass valve opens, the external transmission air intake valve of the B air intake separation tank and the external transmission check valve of the B air intake separation tank are closed, the air supply port of the compressor is connected to the external transmission bypass valve, and at the same time, the AB air intake separation tank pressure-equalizing valve opens, and the A air intake separation tank and the B air intake separation tank are connected through the AB tank pressure-equalizing valve. When the pressure of the B air intake separation tank drops to the same level as that of the A air intake separation tank, the B air intake separation tank air intake valve and the B air intake separation tank air supply valve are opened, and after the valves A air intake separation tank air intake valve and the A air intake separation tank air supply valve and the AB tank pressure-equalizing valve are closed, the A air intake separation tank external transmission air intake valve and the A air intake separation tank external transmission check valve are opened, and finally the external transmission bypass valve is closed. At this time, the B air intake separation tank plays the role of air intake separation, and the A air intake separation tank transmits the previously separated and recovered liquid together with the gas compressed and pressurized by the compressor into the air supply pipeline;
[0018] (2) The gas-liquid mixed transmission structure of the natural gas compressor is to separate the free water and other liquid media in the medium during the production operation to ensure the normal production and operation of the compressor, and the separated liquid is processed by the process system and transported to the user pipeline or storage tank together with the gas. The compressor can be operated stably and continuously, and the gas and liquid can be mixed together without any emission to the outside. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.
[0020] Figure 1 It is a structural schematic diagram of the present invention;
[0021] Figure 2 This is a schematic structural diagram of the A air inlet separation tank of the present invention;
[0022] Figure 3 It is a structural schematic diagram of the B air intake separation tank of the present invention.
[0023] In the figure: 1. A air intake separation tank; 2. B air intake separation tank; 3. compressor; 301. compressor air inlet; 302. compressor air supply port; 303. compressor sewage outlet; 4. connection to air intake network; 5. air supply pipeline; 6. air intake pipe; 7. air intake valve; 8. equalizing pipe; 9. AB tank equalizing valve; 10. air supply pipe; 11. air supply valve; 12. sewage recovery pipe; 13. sewage recovery valve; 14. external air intake pipe; 15. external air intake valve; 16. external bypass pipe; 17. external bypass valve; 18. external check pipe; 19. external check valve. DETAILED DESCRIPTION
[0024] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.
[0025] See also Figure 1-Figure 3As shown, the present invention proposes a gas-liquid mixed transmission structure of a natural gas compressor, comprising an air intake separation tank A 1, an air intake separation tank B 2, a compressor 3, an air intake pipe network 4 and an air delivery pipeline 5; the compressor 3 is provided with a compressor air intake port 301, a compressor air delivery port 302 and a compressor sewage outlet 303, the air intake pipe network 4 is connected to the air intake separation tank A 1 and the air intake separation tank B 2 through two air intake pipes, the two air intake pipes are connected through a flat pressure pipe, the air intake separation tank A 1 and the air intake separation tank B 2 are connected to the compressor air intake through the air delivery pipe. The A air intake separation tank 1 and the B air intake separation tank 2 are connected with the compressor sewage outlet 303 through the sewage recovery pipe fitting, the A air intake separation tank 1 and the B air intake separation tank 2 are connected with the compressor air supply port 302 through the external air intake pipe fitting, the compressor air supply port 302 is connected with the air supply pipeline 5 through the external bypass pipe fitting, the bottom of the A air intake separation tank 1 and the B air intake separation tank 2 are provided with external check pipe fittings, and the external check pipe fittings are connected with the air supply pipeline 5, and the A air intake separation tank 1 and the B air intake separation tank 2 are provided with sensors.
[0026] Each air intake pipe comprises an air intake pipe 6 and an air intake valve 7. One end of the two air intake pipes 6 is connected to the air intake network 4, and the other ends of the two air intake pipes 6 are respectively connected to the A air intake separation tank 1 and the B air intake separation tank 2. The two air intake valves 7 are respectively arranged on the two air intake pipes 6.
[0027] The equalizing pressure pipe fittings include an equalizing pressure pipe 8 and an AB tank equalizing pressure valve 9 . Both ends of the equalizing pressure pipe 8 are respectively connected to two air inlet pipes 6 . The AB tank equalizing pressure valve 9 is arranged on the equalizing pressure pipe 8 .
[0028] The air supply pipe includes two air supply pipes 10 and two air supply valves 11. One ends of the two air supply pipes 10 are merged and connected to the compressor air inlet 301. The other ends of the two air supply pipes 10 are respectively connected to the A air intake separation tank 1 and the B air intake separation tank 2. The two air supply valves 11 are respectively arranged on the two air supply pipes 10.
[0029] Each sewage recovery pipe includes a sewage recovery pipe 12 and a sewage recovery valve 13. One end of the two sewage recovery pipes 12 is connected to the A air intake separation tank 1 and the B air intake separation tank 2 respectively. The other ends of the two sewage recovery pipes 12 are merged and connected to the compressor discharge port 303. The two sewage recovery valves 13 are installed on the two sewage recovery pipes 12.
[0030] The external air intake pipe includes two external air intake pipes 14 and two external air intake valves 15. One end of the two external air intake pipes 14 is connected to the A air intake separation tank 1 and the B air intake separation tank 2 respectively. The other ends of the two external air intake pipes 14 are merged and connected to the compressor air supply port 302. The two external air intake valves 15 are respectively arranged on the two external air intake pipes 14.
[0031] The external bypass pipe includes an external bypass pipe 16 and an external bypass valve 17 . One end of the external bypass pipe 16 is connected to the air supply pipeline 5 , and the other end of the external bypass pipe 16 is combined with two external air inlet pipes 14 and connected to the compressor air supply port 302 .
[0032] The external transmission check pipe fittings include two external transmission check pipes 18 and two external transmission check valves 19. One ends of the two external transmission check pipes 18 are respectively connected to the A air intake separation tank 1 and the B air intake separation tank 2, and the other ends of the two external transmission check pipes 18 are merged and connected to the air supply pipeline 5.
[0033] The sensor on the A air intake separation tank 1 is the LT V101 liquid level sensor, and the sensor on the B air intake separation tank 2 is the LTV102 liquid level sensor.
[0034] A process is adopted in which one path is separated and wastewater is recovered and one path is mixedly transported to the outside and discharged from the liquid in the tank. The air intake valve 7 and the air delivery valve 11 of the A air intake separation tank 1 are opened so that the A air intake separation tank 1 plays the role of air intake separation. The gas after separation of free water enters the compressor air intake port 301 through the valves A air intake separation tank 1 air intake valve 7 and the air delivery valve 11 of the A air intake separation tank 1. When wastewater is discharged from other separators in the compressor 3 system during the operation of the A air intake separation tank 1, the wastewater recovery valve 13 of the A air intake separation tank 1 is opened and the wastewater enters the A air intake separation tank 1 for recovery. At the same time, the external transport air intake valve 15 of the B air intake separation tank 2 and the external transport check valve 19 of the B air intake separation tank 2 are opened and connected to the compressor air delivery port 302 and the air delivery pipeline 5, and the previously separated and recovered liquid is transported together with the gas compressed and pressurized by the compressor 3 into the air delivery pipeline 5. After the liquid level separated and recovered in the A air intake separation tank 1 reaches the standard, it is transported by the LT The V101 liquid level sensor is linked to the PLC control system, the external transmission bypass valve 17 is opened, the external transmission air intake valve 15 of the B air intake separation tank 2 and the external transmission check valve 19 of the B air intake separation tank 2 are closed, the compressor air supply port 302 is connected to the external transmission bypass valve 17, and at the same time the AB air intake separation tank 2 pressure-equalizing valve is opened, the A air intake separation tank 1 and the B air intake separation tank 2 are connected through the AB tank pressure-equalizing valve 9, and when the pressure of the B air intake separation tank 2 drops to the same level as that of the A air intake separation tank 1, the B air intake separation tank 2 air intake valve 7 and the B air intake separation tank 2 air supply valve 11 are opened, and after the valves A air intake separation tank 1 air intake valve 7 and the A air intake separation tank 1 air supply valve 11 and the AB tank pressure-equalizing valve 9 are closed, the A air intake separation tank 1 external transmission air intake valve 15 and the A air intake separation tank 1 external transmission check valve 19 are opened, and finally the external transmission bypass valve 17 is closed. At this time, the B air intake separation tank 2 plays the role of air intake separation, and the A air intake separation tank 1 transmits the previously separated and recovered liquid and the gas compressed and pressurized by the compressor 3 into the air delivery pipeline 5.
[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.
Claims
1. A gas-liquid mixed transmission structure of a natural gas compressor, characterized in that: The invention comprises an air intake separation tank A (1), an air intake separation tank B (2), a compressor (3), an air intake pipe network (4) and an air supply pipeline (5); the compressor (3) is provided with a compressor air intake port (301), a compressor air supply port (302) and a compressor sewage outlet (303); the air intake pipe network (4) is connected to the air intake separation tank A (1) and the air intake separation tank B (2) respectively through two air intake pipes; the two air intake pipes are connected through a flat pressure pipe; the air intake separation tank A (1) and the air intake separation tank B (2) are connected to the compressor air intake port (301) through the air supply pipe; the air intake separation tank A (1) and the air intake separation tank B (2) are connected to the compressor air intake port (301) through the air supply pipe; The gas separation tank (1) and the B air intake separation tank (2) are connected to the compressor sewage outlet (303) through a sewage recovery pipe fitting, the A air intake separation tank (1) and the B air intake separation tank (2) are connected to the compressor air supply port (302) through an external air intake pipe fitting, the compressor air supply port (302) is connected to the air supply pipeline (5) through an external bypass pipe fitting, the bottoms of the A air intake separation tank (1) and the B air intake separation tank (2) are both provided with external check pipe fittings, and the external check pipe fittings are both connected to the air supply pipeline (5), and sensors are provided on the A air intake separation tank (1) and the B air intake separation tank (2).
2. A natural gas compressor gas-liquid mixed transmission structure according to claim 1, characterized in that: Each air intake pipe comprises an air intake pipe (6) and an air intake valve (7); one end of the two air intake pipes (6) is connected to the air intake pipe network (4); the other ends of the two air intake pipes (6) are respectively connected to an air intake separation tank A (1) and an air intake separation tank B (2); and the two air intake valves (7) are respectively arranged on the two air intake pipes (6).
3. A gas-liquid mixed transmission structure of a natural gas compressor according to claim 2, characterized in that: The pressure-equalizing pipe fitting comprises a pressure-equalizing pipe (8) and an AB tank pressure-equalizing valve (9); the two ends of the pressure-equalizing pipe (8) are respectively connected to two air inlet pipes (6); and the AB tank pressure-equalizing valve (9) is arranged on the pressure-equalizing pipe (8).
4. A gas-liquid mixed transmission structure of a natural gas compressor according to claim 1, characterized in that: The air supply pipe comprises two air supply pipes (10) and two air supply valves (11); one end of the two air supply pipes (10) are combined and connected to the compressor air inlet (301); the other ends of the two air supply pipes (10) are connected to an air intake separation tank A (1) and an air intake separation tank B (2), respectively; and the two air supply valves (11) are respectively arranged on the two air supply pipes (10).
5. The gas-liquid mixed transmission structure of a natural gas compressor according to claim 1, characterized in that: Each sewage recovery pipe comprises a sewage recovery pipe (12) and a sewage recovery valve (13). One end of the two sewage recovery pipes (12) is respectively connected to the A air intake separation tank (1) and the B air intake separation tank (2). The other ends of the two sewage recovery pipes (12) are combined and connected to the compressor sewage outlet (303). The two sewage recovery valves (13) are installed on the two sewage recovery pipes (12).
6. A gas-liquid mixed transmission structure of a natural gas compressor according to claim 1, characterized in that: The external air intake pipe assembly comprises two external air intake pipes (14) and two external air intake valves (15); one end of the two external air intake pipes (14) is respectively connected to the A air intake separation tank (1) and the B air intake separation tank (2); the other ends of the two external air intake pipes (14) are combined and connected to the compressor air delivery port (302); and the two external air intake valves (15) are respectively arranged on the two external air intake pipes (14).
7. A gas-liquid mixed transmission structure of a natural gas compressor according to claim 6, characterized in that: The external transmission bypass pipe member comprises an external transmission bypass pipe (16) and an external transmission bypass valve (17); one end of the external transmission bypass pipe (16) is connected to the air supply pipeline (5); the other end of the external transmission bypass pipe (16) is combined with two external transmission air inlet pipes (14) and is connected to the compressor air supply port (302).
8. The gas-liquid mixed transmission structure of a natural gas compressor according to claim 1, characterized in that: The external transmission check pipe assembly comprises two external transmission check pipes (18) and two external transmission check valves (19); one end of the two external transmission check pipes (18) is respectively connected to the A air intake separation tank (1) and the B air intake separation tank (2); the other ends of the two external transmission check pipes (18) are combined and connected to the air supply pipeline (5).
9. The gas-liquid mixed transmission structure of a natural gas compressor according to claim 1, characterized in that: The sensor on the A air intake separation tank (1) is an LT V101 liquid level sensor, and the sensor on the B air intake separation tank (2) is an LT V102 liquid level sensor.