A hydraulic gas-liquid mixed transmission compression skid

Abstract

The present invention discloses a hydraulic gas-liquid mixed transmission compression skid, including a compressor unit, wherein the compressor unit is provided with a compression cylinder, a filter, a motor oil pump assembly 1, a hydraulic oil tank, a motor oil pump assembly 2, a pressure reducing device, and a cooling device. Two-stage sealing and oil leakage prevention measures are adopted between the compression cylinder and the air chamber, and the oil sealing device and the gas sealing device are used in coordination. A drain port is designed between the gas sealing device and the oil sealing device. If the hydraulic oil penetrates through the oil sealing device under the action of pressure, the leaked hydraulic oil will gather between the oil sealing device and the gas sealing device, and be discharged to the outside of the compression cylinder body along the drain port. When the maintenance personnel find that the data is abnormal, they will replace the oil sealing device, and the oil cannot enter the air chamber through the gas sealing device, so that the hydraulic oil and the natural gas are completely separated.

Description

Technical Field

[0001] The invention relates to a hydraulic gas-liquid mixed transmission compression skid, and in particular belongs to the technical field of fluid transmission equipment. Background Art

[0002] With the development of oil and gas fields in deserts and oceans and the development of supporting technologies for oil and gas gathering and transportation, multiple oil, liquid and gas mixed transportation technologies have been increasingly widely used. For the low-pressure oil and gas medium produced from the wellhead, pressurizing it and then mixing it through pipelines is currently the best and most effective way to transport oil and gas over long distances and efficiently, which has great social and economic benefits to the society. After long-term exploitation, the wellhead pressure of traditional gas wells slowly decreases from high pressure to 0.3-2MPa. The natural gas (containing a small amount of water) coming out of the gas well needs to be pressurized to above 3-3.5MPa, and then transported to the processing station through long-distance pipelines for centralized treatment. For venting air, low-pressure wells, and gathering and transportation stations, fully tap the potential of old wells, maximize production, improve the final recovery rate of gas reservoirs, increase production and efficiency, and reduce environmental pollution caused by venting.

[0003] The compression skids commonly used at present are to transport gas and liquid separately, usually using conventional equipment on medium and high pressure wellheads, compression, dehydration tower desulfurization, etc., which are equipped on low pressure wellheads, which have no practical value. In addition, due to the gas production volume, the wellhead pressure is also low, and the price of conventional equipment is greater than the value of recovering these gases.

[0004] At present, there is also a reciprocating compressor gas-liquid mixed transportation system: Patent CN206111488U discloses a reciprocating compressor gas-liquid mixed transportation system with a gas-liquid mixed transportation tank, which concentrates the liquid in the two separators at one place, and transports the liquid to the main pipeline in the form of high-pressure gas through a venturi tube to enter the exhaust pipe of the compressor, and when the liquid in the gas-liquid mixed transportation tank is higher than a certain liquid surface, the pneumatic switch on the exhaust pipe connected to the gas-liquid mixed transportation tank is used to transport the liquid to a processing plant or the like. It has the functions of low investment and energy saving, but the product has a narrow scope of application, poor separation effect of hydraulic oil and natural gas, large footprint and poor practicality.

[0005] Therefore, the patented hydraulic gas-liquid mixed transmission compression skid of the present invention can transport the gas and liquid mixture from the low-pressure wellhead to the gathering station with only one device, and carry out centralized processing in the gathering station to reduce production costs. Two-stage sealing and oil leakage prevention measures are adopted between the oil cylinder and the air chamber of the gas-liquid mixed transmission compressor to form a complete separation of hydraulic oil and natural gas. Summary of the invention

[0006] The purpose of the present invention is to provide a hydraulic gas-liquid mixed transmission compression skid to solve the technical problems raised in the above background technology. The present invention can transport the gas and liquid mixed from the low-pressure wellhead to the gathering station with only one device, and carry out centralized processing in the gathering station to reduce production costs. The two-stage sealing and oil leakage prevention measures are adopted between the oil cylinder and the air chamber of the gas-liquid mixed transmission compressor to form a complete separation of hydraulic oil and natural gas.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A hydraulic gas-liquid mixed transmission compression skid comprises a compressor unit, wherein the compressor unit is provided with a compression cylinder, a rough dehydration tower 1, a filter, a motor oil pump assembly 1, a hydraulic oil tank, a motor oil pump assembly 2, a rough dehydration tower 2, a pressure reducing device, a cooling device, an air inlet, an air outlet, a sewage outlet, a pressure reducing outlet, an explosion-proof control cabinet, and a control system. An explosion-proof control cabinet is provided on the outermost side of the compressor unit.

[0009] Preferably, the control system adopts a host computer client management method, and the control system adopts data bus and network transmission machine control technology. The control system can fully reflect the operating parameters and operating status of the equipment, improve the control accuracy and response speed of the equipment, and provide strong protection for equipment safety.

[0010] Preferably, the compressor unit is a skid-mounted structure, the size of the skid body is 4500mm×2800mm×2900mm, and compression cylinder bodies are respectively provided on the left and right sides of the compressor unit. The length of the compression cylinder body is 420mm, and the compression cylinder body is horizontally installed and in a two-stage compression form. The compression cylinder body is provided with an oil cylinder body, an air cylinder body, a water cylinder body, an oil sealing device, an air sealing device, a connecting screw, a shaft end positioning plate 1, a shaft middle positioning plate 1, a shaft middle positioning plate 2, a shaft end positioning plate 2, a micro-pulse displacement sensor, and a clamping screw plug.

[0011] Preferably, a micro-pulse displacement sensor is provided on the left side of the compression cylinder body, a compression cylinder one-way valve is provided inside the compression cylinder body, a shaft is provided inside the compression cylinder body, shaft end positioning plates 1 and shaft end positioning plates 2 are provided on the left and right sides of the shaft respectively, a water cylinder body is provided on the right side of the shaft end positioning plate 1, the water cylinder body is provided with a water jacket sealing ring, and an air cylinder body is provided on the right side of the water cylinder body.

[0012] Preferably, the water cylinder body and the oil cylinder body are connected by a connecting screw, an axis middle positioning plate 1 is arranged between the water cylinder body and the oil cylinder body, an axis middle positioning plate 2 is arranged on the right side of the oil cylinder body, an axis end positioning plate 2 is arranged on the right side of the axis middle positioning plate 2, and a gasket is arranged on the right side of the axis end positioning plate 2.

[0013] Preferably, a clamping screw plug is provided on the lower left side of the compression cylinder body, a sealing ring is provided on the left side of the clamping screw plug, a sealing ring is provided on the left side of the sealing ring, the cylinder body is provided with an air sealing device, cylinder piston assemblies are provided on the upper and lower sides of the air sealing device, a magnet fixing block is provided in the middle of the cylinder piston assemblies on both sides, a magnetic ring is provided on one side of the magnet fixing block, piston seals are provided on both sides of the cylinder piston assembly, and a cylinder piston copper ring is provided on the left side of the piston seal.

[0014] Preferably, the oil cylinder body is provided with an oil sealing device, and the oil sealing device is provided with an oil cylinder piston seal, an oil cylinder shaft seal copper ring, a piston rod seal, a retaining ring, an oil seal retaining ring, an oil seal bracket, and an oil cylinder piston assembly.

[0015] Preferably, a motor oil pump assembly 1 and a motor oil pump assembly 2 are arranged in the middle of the left and right compression cylinders, the motor oil pump assembly 1 and the motor oil pump assembly 2 are provided with an explosion-proof motor and an oil pump assembly, and a hydraulic oil tank is arranged in the middle of the motor oil pump assembly 1 and the motor oil pump assembly 2.

[0016] Preferably, a rough dehydration tower 2 and a cooling device are arranged on the right side of the right compression cylinder body, an explosion-proof control cabinet is arranged on one side of the rough dehydration tower 2, the rough dehydration tower 2 is arranged with an air inlet, an air outlet is arranged at the bottom of the compressor unit, and a sewage outlet is arranged on the right side of the air outlet.

[0017] Preferably, the compressor unit is provided with a pressure reducing device, the pressure reducing device is provided with a safety valve, a pressure regulator is provided on the left side of the safety valve, a reheater is provided on the left side of the pressure regulator, a filter assembly is provided on the left side of the reheater, a rough dehydration tower 1 is provided on the right side of the pressure reducing device, and a pressure reducing outlet is provided on the lower side of the rough dehydration tower 1.

[0018] Compared with the prior art, the beneficial technical effects of the present invention are:

[0019] 1. The compression cylinder body of the present invention is provided with a clamping screw plug on the lower left side, a sealing ring is provided on the left side of the clamping screw plug, a sealing ring is provided on the left side of the sealing ring, the cylinder body is provided with an air sealing device, the upper and lower sides of the air sealing device are respectively provided with cylinder piston assemblies, a magnet fixing block is provided in the middle of the cylinder piston assemblies on both sides, a magnetic ring is provided on one side of the magnet fixing block, piston seals are respectively provided on both sides of the cylinder piston assembly, a cylinder piston copper ring is provided on the left side of the piston seal, the oil cylinder body is provided with an oil sealing device, the oil sealing device is provided with an oil cylinder piston seal, an oil cylinder shaft seal copper ring, a piston rod seal, a retaining ring, an oil seal retaining ring, an oil seal bracket, and an oil cylinder piston assembly. Two-stage sealing and oil leakage prevention measures are adopted between the compression cylinder body and the air chamber. An oil sealing device is installed outside the oil cylinder body, and an air sealing device is installed outside the air cylinder body, and a drain port is designed between the air sealing device and the oil sealing device. If the hydraulic oil penetrates through the oil sealing device under the action of pressure, the leaked hydraulic oil will gather between the oil sealing device and the air sealing device, and be discharged to the outside of the compression cylinder body along the drain port. After the maintenance personnel find the data abnormality, they will replace the oil sealing device, and the oil cannot enter the air chamber through the air sealing device, thereby forming a complete separation of the hydraulic oil and the natural gas.

[0020] 2. The compressor unit of the present invention is provided with a compression cylinder, a rough dehydration tower 1, a filter, a motor oil pump assembly, a hydraulic oil tank, a motor oil pump assembly, a rough dehydration tower, a pressure reducing device, a cooling device, and an explosion-proof control cabinet, which are organically integrated into one. The compressor unit is a skid-mounted structure, and the size of the skid is 4500mm×2800mm×2900mm, which effectively utilizes space, occupies a smaller area, has TCP / IP protocol anti-interference, and is simple to install and maintain.

[0021] 3. The left and right sides of the compressor unit of the present invention are respectively provided with compression cylinder bodies, and the compression cylinder bodies are provided with oil cylinder bodies, gas cylinder bodies, water cylinder bodies, oil sealing devices, gas sealing devices, connecting screws, shaft end positioning plates 1, shaft middle positioning plates 1, shaft middle positioning plates 2, shaft end positioning plates 2, micro-pulse displacement sensors, and compression screw plugs. The hydraulic gas-liquid mixed transmission compression skid is skid-mounted and has a double-cylinder structure. The compression cylinder body is horizontally installed and has a two-stage compression form. The structural design is unique, and the cylinder piston adopts oil-free lubrication. It has low noise, small footprint, and energy saving. The compressor unit adopts a cooling device and is overall closed and skid-mounted.

[0022] 4. The compression cylinder body of the present invention is provided with an oil cylinder body, an air cylinder body, a water cylinder body, an oil sealing device, an air sealing device, a connecting screw, a shaft end positioning plate 1, a shaft middle positioning plate 1, a shaft middle positioning plate 2, a shaft end positioning plate 2, a micro-pulse displacement sensor, and a clamping screw plug. The compression cylinder body is changed from the original 400mm to 420mm, and the gas volume is increased by 5%, which improves the accuracy of the reversing point and avoids the fixed point control of the single-cylinder and double-cylinder operation, so that the operation is reasonably coordinated and the gas filling efficiency is greatly improved. Therefore, the present invention is simple to operate, safe and reliable in operation, convenient to maintain, and saves operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the structure of a hydraulic gas-liquid mixed transmission compression skid proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of a hydraulic gas-liquid mixed transmission compression skid pressure reducing device proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the compression cylinder of a hydraulic gas-liquid mixed transmission compression skid proposed by the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of a hydraulic gas-liquid mixed transmission compression skid proposed by the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of a hydraulic gas-liquid mixed transmission compression skid proposed by the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of a hydraulic gas-liquid mixed transmission compression skid proposed by the present invention;

[0030] In the figure: 1. compression cylinder body; 3. coarse dehydration tower 1; 4. filter; 5. motor oil pump assembly 1; 501. explosion-proof motor; 502. oil pump assembly; 6. hydraulic oil tank; 7. motor oil pump assembly 2; 8. coarse dehydration tower 2; 9. pressure reducing device; 10. cooling device; 11. explosion-proof control cabinet; 12. compressor unit; 13. micro pulse displacement sensor; 14. shaft end positioning plate 1; 15. compression cylinder check valve; 16. water jacket sealing ring; 17. water cylinder body; 18. cylinder body; 19. sealing ring; 20. clamping screw plug; 21. cylinder piston assembly; 22. magnet fixing block; 23. cylinder piston copper ring; 25. piston seal; 27 , magnetic ring; 28, cylinder piston seal; 30, piston rod seal; 33, retaining ring; 34, oil seal retaining ring; 35, cylinder shaft seal copper ring; 36, oil seal bracket; 37, cylinder piston assembly; 38, shaft; 39, connecting screw; 40, shaft middle positioning plate 1; 41, cylinder body; 42, shaft middle positioning plate 2; 43, shaft end positioning plate 2; 44, gasket; 45, air inlet; 46, air outlet; 47, sewage outlet; 48, pressure reducing outlet; 49, sealing ring; 901, filter assembly; 902, reheater; 903, pressure regulator; 904, safety valve; 1-3 oil sealing device; 1-2 air sealing device; 50, control system. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figure 1-6 , the present invention provides the following technical solution:

[0033] The working principle and use process of the present invention are as follows: Figure 1 As shown, this embodiment provides a hydraulic gas-liquid mixed transmission compression skid, including a compressor unit 12, wherein the compressor unit 12 is provided with a compression cylinder 1, a rough dehydration tower 1, a filter 4, a motor oil pump assembly 15, a hydraulic oil tank 6, a motor oil pump assembly 27, a rough dehydration tower 28, a pressure reducing device 9, a cooling device 10, an air inlet 45, an air outlet 46, a sewage outlet 47, a pressure reducing outlet 48, an explosion-proof control cabinet 11, and a control system 50. The explosion-proof control cabinet 11 is provided on the outermost side of the compressor unit 12.

[0034] like Figure 6As shown, this embodiment provides a hydraulic gas-liquid mixed transmission compression skid, the control system (50) adopts a host computer client management method, the control system (50) adopts a data bus and network transmission machine control technology, the control system can fully reflect the parameters and operating status of the equipment operation, so that the control accuracy and response speed of the equipment are greatly improved, providing strong protection for the safety of the equipment and the station, effectively improving the equipment work efficiency and saving about 20% of electricity, while saving the investment in the reactive power compensation equipment of the station, providing a platform for the station management, and realizing unmanned operation.

[0035] like Figure 2 As shown, this embodiment provides a hydraulic gas-liquid mixed transmission compression skid, the compressor unit 12 is a skid-mounted structure, the size of the compressor unit 12 skid body is 4500mm×2800mm×2900mm, and the left and right sides of the compressor unit 12 are respectively provided with compression cylinder bodies 1, the length of the compression cylinder body 1 is 420mm, and the compression cylinder body 1 adopts a horizontal installation and a two-stage compression form. The compression cylinder body 1 is provided with an oil cylinder body 41, an air cylinder body 18, a water cylinder body 17, an oil sealing device 1-3, an air sealing device 1-2, a connecting screw 39, a shaft end positioning plate 114, a shaft middle positioning plate 140, a shaft middle positioning plate 242, a shaft end positioning plate 243, a micro-pulse displacement sensor 13, and a clamping screw plug 20.

[0036] like Figure 2 As shown, this embodiment provides a hydraulic gas-liquid mixed transmission compression skid, a micro-pulse displacement sensor 13 is arranged on the left side of the compression cylinder body 1, a compression cylinder check valve 15 is arranged inside the compression cylinder body 1, a shaft 38 is arranged inside the compression cylinder body 1, and shaft end positioning plates 114 and shaft end positioning plates 243 are arranged on the left and right sides of the shaft 38 respectively, a water cylinder body 17 is arranged on the right side of the shaft end positioning plate 114, the water cylinder body 17 is provided with a water jacket sealing ring 16, and an air cylinder body 18 is arranged on the right side of the water cylinder body 17.

[0037] like Figure 2 As shown, this embodiment provides a hydraulic gas-liquid mixed transmission compression skid, the water cylinder body 17 and the oil cylinder body 41 are connected by a connecting screw 39, an intermediate shaft positioning plate 140 is arranged between the water cylinder body 17 and the oil cylinder body 41, an intermediate shaft positioning plate 242 is arranged on the right side of the oil cylinder body 41, an end shaft positioning plate 243 is arranged on the right side of the intermediate shaft positioning plate 242, and a gasket 44 is arranged on the right side of the end shaft positioning plate 243.

[0038] like Figure 4As shown, this embodiment provides a hydraulic gas-liquid mixed transmission compression skid, the compression cylinder body 1 is provided with a clamping screw plug 20 on the lower left side, the clamping screw plug 20 is provided with a sealing ring 19 on the left side, and the sealing ring 49 is provided on the left side of the sealing ring 19, the cylinder body 18 is provided with a gas sealing device 1-2, and the gas sealing device 1-2 is provided with cylinder piston assemblies 21 on the upper and lower sides respectively, and a magnet fixing block 22 is provided in the middle of the cylinder piston assemblies 21 on both sides, and a magnetic ring 27 is provided on one side of the magnet fixing block 22, and piston seals 25 are provided on both sides of the cylinder piston assembly 21, and a cylinder piston copper ring 23 is provided on the left side of the piston seal 25.

[0039] like Figure 4 As shown, this embodiment provides a hydraulic gas-liquid mixed transmission compression skid, the cylinder body 41 is provided with an oil sealing device 1-3, and the oil sealing device 1-3 is provided with a cylinder piston seal 28, a cylinder shaft seal copper ring 35, a piston rod seal 30, a retaining ring 33, an oil seal retaining ring 34, an oil seal bracket 36, and a cylinder piston assembly 37.

[0040] like Figure 1 As shown, this embodiment provides a hydraulic gas-liquid mixed transmission compression skid, wherein a motor oil pump assembly 15 and a motor oil pump assembly 27 are arranged between the left and right compression cylinder bodies 1, and the motor oil pump assembly 15 and the motor oil pump assembly 27 are provided with an explosion-proof motor 501 and an oil pump assembly 502, and a hydraulic oil tank 6 is arranged between the motor oil pump assembly 15 and the motor oil pump assembly 27.

[0041] like Figure 1 As shown, this embodiment provides a hydraulic gas-liquid mixed transmission compression skid, a rough dehydration tower 28 and a cooling device 10 are arranged on the right side of the right compression cylinder body 1, an explosion-proof control cabinet 11 is arranged on one side of the rough dehydration tower 28, the rough dehydration tower 28 is provided with an air inlet 45, an air outlet 46 is arranged at the bottom of the compressor unit 12, and a sewage outlet 47 is arranged on the right side of the air outlet 46.

[0042] like Figure 3 As shown, this embodiment provides a hydraulic gas-liquid mixed transmission compression skid, the compressor unit is provided with a pressure reducing device 9, the pressure reducing device 9 is provided with a safety valve 904, a pressure regulator 903 is provided on the left side of the safety valve 904, a reheater 902 is provided on the left side of the pressure regulator 903, a filter assembly 901 is provided on the left side of the reheater 902, a rough dehydration tower 13 is provided on the right side of the pressure reducing device 9, and a pressure reducing outlet 48 is provided on the lower side of the rough dehydration tower 13.

[0043] The working principle of the present invention is as follows: a compression screw plug 20 is arranged on the lower left side of the compression cylinder body 1, a sealing ring 19 is arranged on the left side of the compression screw plug 20, a sealing ring 49 is arranged on the left side of the sealing ring 19, a gas sealing device 1-2 is arranged on the cylinder body 18, a cylinder piston assembly 21 is arranged on the upper and lower sides of the gas sealing device 1-2, a magnet fixing block 22 is arranged in the middle of the cylinder piston assembly 21 on both sides, a magnetic ring 27 is arranged on one side of the magnet fixing block 22, piston seals 25 are arranged on both sides of the cylinder piston assembly 21, a cylinder piston copper ring 23 is arranged on the left side of the piston seal 25, an oil sealing device 1-3 is arranged on the cylinder body 41, and the oil sealing device 1-3 is provided with a cylinder piston seal 28, a cylinder shaft seal copper ring 35, a piston rod seal 30, a retaining ring 33, an oil seal retaining ring 34, an oil seal bracket 36, and a cylinder piston assembly 37. Two-stage sealing and oil leakage prevention measures are adopted between the compression cylinder body 1 and the air chamber. An oil seal 1-3 is installed outside the oil cylinder body 41, and an air seal 1-2 is installed outside the cylinder body 18, and a drain port 47 is designed between the air seal 1-2 and the oil seal 1-3. If the hydraulic oil penetrates through the oil seal 1-3 under the action of pressure, the leaked hydraulic oil will gather between the oil seal 1-3 and the air seal 1-2, and be discharged to the outside of the compression cylinder body 1 along the drain port 46. After the maintenance personnel find the data abnormality, they will replace the oil seal 1-3, and the oil cannot enter the air chamber through the air seal 1-2, so that the hydraulic oil and natural gas are completely separated. The compressor unit 12 is provided with a compression cylinder 1, a rough dehydration tower 1, a filter 4, a motor oil pump assembly 15, a hydraulic oil tank 6, a motor oil pump assembly 27, a rough dehydration tower 28, a pressure reducing device 9, a cooling device 10, and an explosion-proof control cabinet 11, which are organically integrated to effectively utilize the space and occupy a smaller area. The size of the skid is 4500mm×2800mm×2900mm, the TCP / IP protocol is anti-interference, and the surrounding movable doors are designed, which is simple to install and maintain. The hydraulic gas-liquid mixed transmission compression skid has a skid-mounted, double-cylinder structure. The compression cylinder is horizontally installed and in a two-stage compression form. The structural design is unique, and the cylinder piston adopts oil-free lubrication. Low noise, small footprint, and energy saving. The compressor unit 12 adopts a cooling device 10 and is overall closed and skid-mounted. The present invention is simple to operate, safe and reliable in operation, easy to maintain, and saves operating costs.

[0044] See also Figure 1 Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic gas-liquid mixed transmission compression skid, characterized in that: The compressor unit (12) comprises a compression cylinder (1), a coarse dehydration tower 1 (3), a filter (4), a motor oil pump assembly 1 (5), a hydraulic oil tank (6), a motor oil pump assembly 2 (7), a coarse dehydration tower 2 (8), a pressure reducing device (9), a cooling device (10), an air inlet (45), an air outlet (46), a sewage outlet (47), a pressure reducing outlet (48), and an explosion-proof control cabinet (11); the outermost portion of the compressor unit (12) is provided with an explosion-proof control cabinet (11) and a control system (50); The control system (50) adopts a host computer customer management mode, the control system (50) adopts a data bus and network transmission machine control technology, the compressor unit (12) is a skid-mounted structure, the size of the compressor unit (12) skid body is 4500mm×2800mm×2900mm, the compressor unit (12) is provided with compression cylinder bodies (1) on the left and right sides respectively, the compression cylinder body (1) is 420mm long, the compression cylinder body (1) adopts a horizontal installation and a two-stage compression form, the compression cylinder body (1) is provided with an oil cylinder body (41), an air cylinder body (18), a water cylinder body (17), an oil sealing device (1-3), an air sealing device (1-2), a connecting screw (39), a shaft end positioning plate 1 (14), a shaft middle positioning plate 1 (40), a shaft middle positioning plate 2 (42), a shaft end positioning plate 2 (43), a micro-pulse displacement sensor (13), and a clamping screw plug (20); A micro-pulse displacement sensor (13) is arranged on the left side of the compression cylinder body (1), a compression cylinder check valve (15) is arranged inside the compression cylinder body (1), a shaft (38) is arranged inside the compression cylinder body (1), a shaft end positioning plate 1 (14) and a shaft end positioning plate 2 (43) are arranged on the left and right sides of the shaft (38), a water cylinder body (17) is arranged on the right side of the shaft end positioning plate 1 (14), a water jacket sealing ring (16) is arranged on the water cylinder body (17), and an air cylinder body (18) is arranged on the right side of the water cylinder body (17); The water cylinder body (17) and the oil cylinder body (41) are connected via a connecting screw (39); an intermediate shaft positioning plate 1 (40) is provided between the water cylinder body (17) and the oil cylinder body (41); an intermediate shaft positioning plate 2 (42) is provided on the right side of the oil cylinder body (41); an end shaft positioning plate 2 (43) is provided on the right side of the intermediate shaft positioning plate 2 (42); and a gasket (44) is provided on the right side of the end shaft positioning plate 2 (43); A compression screw plug (20) is arranged on the lower left side of the compression cylinder body (1), a sealing ring (19) is arranged on the left side of the compression screw plug (20), a sealing ring (49) is arranged on the left side of the sealing ring (19), a gas sealing device (1-2) is arranged on the cylinder body (18), a cylinder piston assembly (21) is arranged on the upper and lower sides of the gas sealing device (1-2), a magnet fixing block (22) is arranged in the middle of the cylinder piston assembly (21) on both sides, a magnetic ring (27) is arranged on one side of the magnet fixing block (22), piston seals (25) are arranged on both sides of the cylinder piston assembly (21), and a cylinder piston copper ring (23) is arranged on the left side of the piston seal (25); The oil cylinder body (41) is provided with an oil sealing device (1-3), the oil sealing device (1-3) is provided with an oil cylinder piston seal (28), an oil cylinder shaft seal copper ring (35), a piston rod seal (30), a retaining ring (33), an oil seal retaining ring (34), an oil seal bracket (36), and an oil cylinder piston assembly (37), and a sewage outlet is provided between the air sealing device (1-2) and the oil sealing device (1-3); The compressor unit (12) is provided with a pressure reducing device (9), the pressure reducing device (9) is provided with a safety valve (904), a pressure regulator (903) is provided on the left side of the safety valve (904), a reheater (902) is provided on the left side of the pressure regulator (903), a filter assembly (901) is provided on the left side of the reheater (902), a rough dehydration tower 1 (3) is provided on the right side of the pressure reducing device (9), and a pressure reducing outlet (48) is provided on the lower side of the rough dehydration tower 1 (3).

2. According to claim 1, a hydraulic gas-liquid mixed transmission compression skid, characterized in that: A motor oil pump assembly 1 (5) and a motor oil pump assembly 2 (7) are arranged between the compression cylinder bodies (1) on the left and right sides. The motor oil pump assembly 1 (5) and the motor oil pump assembly 2 (7) are provided with explosion-proof motors (501) and oil pump assemblies (502). A hydraulic oil tank (6) is arranged between the motor oil pump assembly 1 (5) and the motor oil pump assembly 2 (7).

3. According to claim 2, a hydraulic gas-liquid mixed transmission compression skid is characterized by: A rough dehydration tower 2 (8) and a cooling device (10) are arranged on the right side of the right compression cylinder body (1), an explosion-proof control cabinet (11) is arranged on one side of the rough dehydration tower 2 (8), an air inlet (45) is arranged on the rough dehydration tower 2 (8), an air outlet (46) is arranged at the bottom of the compressor unit (12), and a sewage outlet (47) is arranged on the right side of the air outlet (46).

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