Gas-liquid separate transportation booster compressor device

Abstract

The utility model provides a gas-liquid separate transportation booster compressor device. The gas-liquid separate transportation booster compressor device comprises a skid-mounted chassis, a gas-liquid separator, a gas compressor, a liquid compressor and a control cabinet, the gas-liquid separator comprises a separation tank, a tank cavity is formed in the separation tank, an inlet pipe communicated with the tank cavity is arranged at the upper part of the side wall of the separation tank, a gas outlet pipe communicated with the tank cavity is arranged at the top of the separation tank, and a liquid outlet pipe communicated with the tank cavity is arranged at the lower part of the side wall of the separation tank; the gas compressor is a second-stage gas hydraulic compressor, the gas inlet end of the second-stage gas hydraulic compressor is communicated with the gas outlet pipe, and the gas outlet end of the second-stage gas hydraulic compressor is used for being communicated with an external gas conveying pipe; the liquid compressor is a single-stage liquid hydraulic compressor, the liquid inlet end of the single-stage liquid hydraulic compressor is communicated with the liquid outlet pipe, and the liquid outlet end of the single-stage liquid hydraulic compressor is used for being communicated with an external liquid conveying pipe. The control cabinet is used for controlling device operation. By means of separation and pressurized conveying of mixed gas, unstable pressurization is avoided, and the reliability of pressurized conveying is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas -liquid pressurization conveying technical field, specifically, relate to a kind of gas-liquid separation pressurization compressor device. BACKGROUND

[0002] With the development of low-efficiency well and the late exploitation of shale gas, a large number of well production is very low, daily production is less than 10000 cubic meters, daily production of liquid is not more than 100 tons, and with the late exploitation, water-out problem is prominent, conventional other compressors cannot meet such low production, drainage gas recovery equipment cannot extract formation water for a long time at low cost, a kind of low-cost, convenient transportation, can be applied to low-yield gas, preferably can adapt to wet gas compression equipment, early foreign companies have invested in research, but most of them are abandoned because the cost is too high to meet the market's low-cost requirements, so a kind of gas-liquid separation hydraulic compressor device is proposed to solve the above problems. SUMMARY

[0003] The utility model mainly solves the compression and collection of wet natural gas, acid gas and mixed gas, and pressurized conveying, solves the problem that conventional compressors are not suitable for wet gas and mixed gas, and if the proportion of liquid increases, the liquid is not easy to compress, which leads to unstable pressure in mixed conveying, and the whole system is easy to shake greatly, so the utility model provides a kind of gas-liquid separation pressurization compressor device.

[0004] The utility model provides a kind of gas-liquid separation pressurization compressor device, including pry dress chassis and install on pry dress chassis gas-liquid separator, gas compressor, liquid compressor, control cabinet;The gas-liquid separator includes separation tank, the tank cavity for gas-liquid separation is equipped in the separation tank, the upper portion of separation tank lateral wall is equipped with the inlet pipe of tank cavity intercommunication, the inlet pipe is mixed with gas-liquid mixture into tank cavity, the top of separation tank is equipped with the gas outlet pipe of tank cavity intercommunication, the lower portion of separation tank lateral wall is equipped with the liquid outlet pipe of tank cavity intercommunication;The gas compressor is two-stage gas hydraulic compressor, the gas inlet end of two-stage gas hydraulic compressor is communicated with gas outlet pipe, the gas outlet end of two-stage gas hydraulic compressor is used to be communicated with external gas conveying pipe, two-stage gas hydraulic compressor is used for the pressurization of separated gas;The liquid compressor is single-stage liquid hydraulic compressor, the liquid inlet end of single-stage liquid hydraulic compressor is communicated with liquid outlet pipe, the liquid outlet end of single-stage liquid hydraulic compressor is used to be communicated with external liquid conveying pipe, single-stage liquid hydraulic compressor is used for the pressurization of separated liquid;The control cabinet is used to control the operation of the gas compressor and liquid compressor.

[0005] In a possible implementation, the bottom of the separation tank is provided with a deslagging pipe communicating with the tank cavity.

[0006] In a possible implementation, a wire mesh demister is arranged at the connection between the gas outlet pipe and the knockout drum.

[0007] In a possible implementation, the secondary gas hydraulic compressor comprises a first hydraulic oil tank, a first gear pump and a first driving motor fixedly installed on the skid-mounted chassis, the output end of the first driving motor is connected with the input end of the first gear pump, the suction end of the first gear pump is provided with a first connecting pipe, the other end of the first connecting pipe is communicated with the first hydraulic oil tank, a primary compression piston assembly is fixedly installed above the first hydraulic oil tank on the skid-mounted chassis, a secondary compression piston assembly is fixedly installed to the right of the primary compression piston assembly on the skid-mounted chassis, a three-way inlet and exhaust valve is arranged between the primary compression piston assembly and the secondary compression piston assembly, the discharge end of the first gear pump is provided with two first electromagnetic valve assemblies, the other ends of the two first electromagnetic valve assemblies are respectively communicated with the primary compression piston assembly and the secondary compression piston assembly through a second connecting pipe, the opposite sides of the primary compression piston assembly and the secondary compression piston assembly are respectively communicated with a third connecting pipe, and the other end of the third connecting pipe is communicated with the first hydraulic oil tank.

[0008] In a possible implementation, the primary compression piston assembly comprises a first outer cylinder, the skid-mounted chassis is fixedly installed with the first outer cylinder above the first hydraulic oil tank, the left end of the first outer cylinder is fixedly installed with a first flange, the right end of the first flange is fixedly installed with a first hydraulic cylinder, the right end of the first hydraulic cylinder is provided with a first hydraulic ram, the end of the first hydraulic ram away from the first hydraulic cylinder is fixedly installed with a first aluminum alloy piston, and the top of the first outer cylinder is fixedly installed with a first thermometer and a first pressure gauge penetrating through and extending into the first outer cylinder.

[0009] In a possible implementation, the three-way inlet and exhaust valve comprises a fixed block, the right end of the first outer cylinder is fixedly installed with the fixed block, recesses are arranged above, to the right and to the left of the fixed block, springs are fixedly installed in the recesses, valve caps are fixedly installed at the other ends of the springs, a first exhaust port is arranged in the left side of the fixed block and communicated with the upper recess, a second exhaust port is arranged in the right side of the fixed block and communicated with the left recess, a third exhaust port is arranged above the fixed block and communicated with the right recess, and the upper recess of the fixed block is communicated with the gas outlet pipe of the knockout drum.

[0010] In a possible implementation, the two-stage compression piston assembly comprises a second outer cylinder, the right end of the fixed block is fixedly installed with the second outer cylinder, the right end of the second outer cylinder is fixedly installed with a second flange, the left end of the second flange is fixedly installed with a second hydraulic cylinder, the left end of the second hydraulic cylinder is provided with a second hydraulic plunger, and the end of the second hydraulic plunger away from the second hydraulic cylinder is fixedly installed with a second aluminum alloy piston; and the top of the second outer cylinder is fixedly installed with a second thermometer and a second pressure gauge which penetrate through and extend into the second outer cylinder.

[0011] In a possible implementation, the single-stage liquid hydraulic compressor comprises a second hydraulic oil tank, a second gear pump, a second driving motor and a single-stage compression piston assembly which are fixedly installed on the skid-mounted chassis, the output end of the second driving motor is connected with the input end of the second gear pump, the suction end of the second gear pump is provided with a fourth connecting pipe, the other end of the fourth connecting pipe is connected with the oil outlet end of the second hydraulic oil tank, the discharge end of the second gear pump is provided with a second electromagnetic valve, the other end of the second electromagnetic valve is connected with the oil inlet end of the single-stage compression piston assembly through a fifth connecting pipe, the oil outlet end of the single-stage compression piston assembly is connected with the oil inlet end of the second hydraulic oil tank through a sixth connecting pipe, the right side of the single-stage compression piston assembly is provided with a two-way inlet and outlet valve, and the single-stage compression piston assembly is arranged above the second hydraulic oil tank.

[0012] In a possible implementation, the single-stage compression piston assembly comprises a third outer cylinder, the third outer cylinder is fixedly installed above the second hydraulic oil tank on the skid-mounted chassis, the left end of the third outer cylinder is fixedly installed with a third flange, the right end of the third flange is fixedly installed with a third hydraulic cylinder, the right end of the third hydraulic cylinder is provided with a third hydraulic plunger, the end of the third hydraulic plunger away from the third hydraulic cylinder is fixedly installed with a third aluminum alloy piston, and the top of the third outer cylinder is fixedly installed with a third pressure gauge which penetrates through and extends into the third outer cylinder.

[0013] In a possible implementation, the two-way inlet and outlet valve comprises a valve body, the valve body is fixedly installed at the right end of the third outer cylinder, the inlet hole and the outlet hole are arranged in the valve body, the right end of the inlet hole is connected with the liquid outlet pipe of the separation tank, the left end of the inlet hole is connected with the inside of the third outer cylinder, the left end of the outlet hole is connected with the inside of the third outer cylinder, and the right end of the outlet hole is connected with the external liquid delivery pipe.

[0014] Compared with the prior art, the technical scheme has the following beneficial technical effects:

[0015] 1. The device can be used for compression of various media such as dry gas, wet gas, acid gas, industrial waste gas, etc., and at the same time solves the problem of high liquid content mixed with other separation and compression and transportation, perfectly solves the risk of high liquid content in mixed transportation, system violent shaking and abnormally high pressure; Perfectly solves the problem of high liquid content and gas formation, which cannot be compressed and transported; And has the advantages of low cost, small size, easy to move, easy to assemble, easy to operate and maintain, etc. It has a wide application in the upstream and midstream industries of oil and natural gas. In addition, it can also be used for the collection of low-yield gas at the wellhead, which can completely replace small-capacity CNG equipment, and can also be used in oil and gas field drainage gas recovery services. At the same time, the compressed gas can reach a high temperature of 200°C, which can dissolve asphaltene and wax in the wellbore and pipeline and salt crystals, and solve the problems of pipeline cleaning and pipeline and wellbore plugging.

[0016] 2. The device is simple to operate, intelligent and integrated, fully automatic control, and the operator only needs to turn on the control system, connect the manifold, connect the power supply, and input the outlet pressure to automatically run. The equipment has automatic protection for overpressure and high temperature. After overpressure, the system will run empty to exhaust until the working pressure range is reached to start recycling; After overtemperature, the system will also start automatic protection, the system will run empty, no gas compression, and after the temperature stabilizes, the device will start running. The device is easy to move, durable, reliable, and easy to maintain. Compared with traditional compressors, the device is designed and manufactured to be lightweight, with a total weight of less than 1.5 tons, which can be carried by a light truck and lifted by a general crane. Without disassembly, the device can be used after being lifted as a whole. The inlet pressure range of the device is 25-125 psi, and the compressed gas volume range is 125-5000 psi (0-35 Mpa). The device has unique elastic pulse wave technology and high temperature resistance. At the same time, the inlet pressure, outlet pressure and compression volume can be set through the control system. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of part of the structure of the utility model Figure One ;

[0019] Figure 3 It is a schematic diagram of part of the structure of the utility model Figure Two ;

[0020] Figure 4 It is a schematic diagram of part of the structure of the utility model Figure Three ;

[0021] Figure 5 It is a schematic diagram of part of the structure of the utility model Figure Four ;

[0022] Figure 6 Part structure of the utility model Figure Five ;

[0023] Figure 7 Part structure of the utility model Figure Six ;

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] 1, pry chassis; 2, gas-liquid separator; 21, separation tank; 22, tank cavity; 23, inlet pipe; 24, gas outlet pipe; 25, liquid outlet pipe; 26, slag discharge pipe; 27, wire mesh demister; 3, gas compressor; 31, first hydraulic oil tank; 311, oil tank thermometer; 312, oil tank liquid level gauge; 313, oil tank radiator; 32, first gear pump; 33, first drive motor; 34, first-stage compression piston assembly; 341, first outer cylinder; 342, first flange; 343, first hydraulic cylinder; 344, first hydraulic ram; 345, first aluminum alloy piston; 346, first thermometer; 347, first pressure gauge; 35, second-stage compression piston assembly; 351, second outer cylinder; 352, second flange; 353, second hydraulic cylinder; 354, second hydraulic ram; 355, second aluminum alloy piston; 356, second thermometer; 357, second pressure gauge; 36, three-way inlet and exhaust valve; 361, fixed block; 362, groove; 363, spring; 364, valve cap; 365, first exhaust port; 366, second exhaust port; 367, third exhaust port; 37, first connecting pipe; 38, second connecting pipe; 39, third connecting pipe; 4, liquid compressor; 41, second hydraulic oil tank; 42, second gear pump; 43, second drive motor; 44, single-stage compression piston assembly; 441, third outer cylinder; 442, third flange; 443, third hydraulic cylinder; 444, third hydraulic ram; 445, third aluminum alloy piston; 446, third pressure gauge; 45, two-way inlet and outlet valve; 451, valve body; 452, liquid inlet hole; 453, liquid outlet hole; 46, fourth connecting pipe; 47, fifth connecting pipe; 48, sixth connecting pipe; 5, control cabinet; 6, breather pipe; 7, first electromagnetic valve; 8, second electromagnetic valve; 9, liquid passage pipe. DETAILED DESCRIPTION

[0026] First, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can adjust them as needed in order to adapt to specific application occasions.

[0027] In the description of the embodiments of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "connected", "connected to", "connection" should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0028] In the embodiments of the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0029] The present application will be further described in detail below in conjunction with the drawings and specific embodiments.

[0030] Reference Figures 1 to 7 The embodiments of the present application disclose a gas-liquid separation and pressurization compressor device, which comprises a skid-mounted chassis 1 and a gas-liquid separator 2, a gas compressor 3, a liquid compressor 4 and a control cabinet 5 installed on the skid-mounted chassis 1. The gas-liquid separator 2 comprises a separation tank 21, wherein a tank cavity 22 for gas-liquid separation is arranged in the separation tank 21, an inlet pipe 23 communicating with the tank cavity 22 is arranged on the upper part of the side wall of the separation tank 21, the inlet pipe 23 is used for feeding the gas-liquid mixture into the tank cavity 22, a gas outlet pipe 24 communicating with the tank cavity 22 is arranged on the top of the separation tank 21, and a liquid outlet pipe 25 communicating with the tank cavity 22 is arranged on the lower part of the side wall of the separation tank 21. The gas compressor 3 is a two-stage gas hydraulic compressor, the gas inlet end of the two-stage gas hydraulic compressor is communicated with the gas outlet pipe 24, the gas outlet end of the two-stage gas hydraulic compressor is used for being communicated with an external gas conveying pipe, and the two-stage gas hydraulic compressor is used for pressurization of separated gas. The liquid compressor 4 is a single-stage liquid hydraulic compressor, the liquid inlet end of the single-stage liquid hydraulic compressor is communicated with the liquid outlet pipe 25, the liquid outlet end of the single-stage liquid hydraulic compressor is used for being communicated with an external liquid conveying pipe, and the single-stage liquid hydraulic compressor is used for pressurization of separated liquid. The control cabinet 5 is used for controlling the operation of the gas compressor 3 and the liquid compressor 4.

[0031] As can be known from the above, the skid chassis 1 provides reliable installation for the gas-liquid separator 2, the gas compressor 3, the liquid compressor 4 and the control cabinet 5, and facilitates the transfer of the entire device; by providing the gas-liquid separator 2, the gas-liquid mixture is separated into gas from the gas outlet pipe 24 and liquid from the liquid outlet pipe 25, achieving separation of the gas-liquid two-phase; by providing the gas compressor 3 and the liquid compressor 4, the separated gas and liquid are pressurized separately, thereby meeting the pressurized delivery of the mixed gas, avoiding unstable pressurization, and improving the reliability of the pressurized delivery.

[0032] Continuing to refer to Figure 1 In the present embodiment, the separation tank 21 is provided at the bottom with a slag discharge pipe 26 communicating with the tank cavity 22, and the slag discharge pipe 26 is provided with a slag discharge switch valve, thereby causing the solid impurities in the mixed gas to deposit and be discharged from the separation tank 21, avoiding the influence on the subsequent gas-liquid pressurization. In order to improve the installation stability of the separation tank 21, the separation tank 21 is fixedly installed on the skid chassis 1 by a triangular support frame.

[0033] In order to improve the reliability of gas-liquid separation, the connection between the gas outlet pipe 24 and the separation tank 21 is provided with a wire mesh demister 27, further ensuring the separation of gas and liquid. The wire mesh demister 27 is a prior art and will not be described in detail herein.

[0034] Continuing to refer to Figures 2 to 5The secondary gas hydraulic compressor comprises a first hydraulic oil tank 31, a first gear pump 32 and a first driving motor 33 fixedly installed on the skid-mounted chassis 1, an output end of the first driving motor 33 is connected with an input end of the first gear pump 32, a suction end of the first gear pump 32 is provided with a first connecting pipe 37, the other end of the first connecting pipe 37 is communicated with the first hydraulic oil tank 31, a primary compression piston assembly 34 is fixedly installed above the first hydraulic oil tank 31 on the skid-mounted chassis 1, a secondary compression piston assembly 35 is fixedly installed on the right of the primary compression piston assembly 34 on the skid-mounted chassis 1, a three-way air inlet and exhaust valve 36 is arranged between the primary compression piston assembly 34 and the secondary compression piston assembly 35, the discharge end of the first gear pump 32 is provided with two first electromagnetic valve 7 assemblies, the other end of the two first electromagnetic valve 7 assemblies is communicated with the primary compression piston assembly 34 and the secondary compression piston assembly 35 through a second connecting pipe 38 respectively, the opposite sides of the primary compression piston assembly 34 and the secondary compression piston assembly 35 are communicated with a third connecting pipe 39, the other end of the third connecting pipe 39 is communicated with the first hydraulic oil tank 31; the primary compression piston assembly 34 comprises a first outer cylinder 341, the first outer cylinder 341 is fixedly installed above the first hydraulic oil tank 31 on the skid-mounted chassis 1, a first flange 342 is fixedly installed at the left end of the first outer cylinder 341, a first hydraulic cylinder 343 is fixedly installed at the right end of the first flange 342, a first hydraulic plunger 344 is arranged at the right end of the first hydraulic cylinder 343, a first aluminum alloy piston 345 is fixedly installed at the end of the first hydraulic plunger 344 away from the first hydraulic cylinder 343, a first thermometer 346 and a first pressure gauge 347 are fixedly installed at the top of the first outer cylinder 341, one end of the first thermometer 346 penetrates through and extends into the first outer cylinder 341, and one end of the first pressure gauge 347 penetrates through and extends into the first outer cylinder 341; the three-way air inlet and exhaust valve 36 comprises a fixed block 361, the right end of the first outer cylinder 341 is fixedly installed with the fixed block 361, recesses 362 are arranged above, on the right side and on the left side of the fixed block 361, springs 363 are fixedly installed on the inner sides of the recesses 362, valve caps 364 are fixedly installed at the other ends of the springs 363, a first exhaust port 365 is arranged on the left side of the fixed block 361 and communicated with the recess 362 above, a second exhaust port 366 is arranged on the right side of the fixed block 361 and communicated with the recess 362 on the left side, a third exhaust port 367 is arranged above the fixed block 361 and communicated with the recess 362 on the right side, the recess 362 above the fixed block 361 and the gas outlet pipe 24 of the separation tank 21 are communicated through an air pipe 6, and a gas switch valve is arranged on the air pipe 6.The secondary compression piston assembly 35 comprises a second outer cylinder 351, the right end of the fixed block 361 is fixedly installed with the second outer cylinder 351, the right end of the second outer cylinder 351 is fixedly installed with a second flange 352, the left end of the second flange 352 is fixedly installed with a second hydraulic cylinder 353, the left end of the second hydraulic cylinder 353 is provided with a second hydraulic plunger 354, and the end of the second hydraulic plunger 354 away from the second hydraulic cylinder 353 is fixedly installed with a second aluminum alloy piston 355. The top of the second outer cylinder 351 is fixedly installed with a second thermometer 356 and a second pressure gauge 357 which penetrate through and extend into the inside of the second outer cylinder 351. Thus, the secondary gas hydraulic compressor realizes the pressurization of the gas, the equipment is divided into two stages of compression, meets the needs of high, medium and low gas pressurization, and has a thermometer and a pressure gauge. In case of abnormally high pressure or high temperature, the power can be cut off to protect the safety of the equipment and the safety of the site personnel, fully meet the requirements of site construction, the structure of the equipment is different from the previous equipment, neither the screw compression principle nor the reciprocating compressor principle, low-speed hydraulic compression is adopted. Under the condition of low-speed compression, the temperature rises slowly, and the gas medium will not produce flash explosion danger; the slow compression of moisture and acidic gas can ensure the pressure and prevent safety problems caused by high temperature. The above problems are completely solved. The motor-driven gear pump of the equipment provides hydraulic power. The design purpose is mainly to stabilize the power, and the overall weight is considered to control the weight of the whole set of equipment within 1.5 tons. The whole equipment is located on the skid-mounted equipment and can be directly hoisted onto a small cargo vehicle for convenient transportation. The required site also needs to be simply leveled. In order to reduce vibration, the equipment is equipped with wooden sleepers, which can improve construction efficiency; the whole equipment adopts lightweight design for convenient transportation, shipment and hoisting.

[0035] In the embodiment, the output end of the first driving motor 33 is provided with a driving shaft, and the inside of the first gear pump 32 is provided with a connecting shaft. The part of the connecting shaft extending out of the first gear pump 32 is fixedly connected with the driving shaft through a shaft coupling. That is, when the first driving motor 33 is running, the connecting shaft can be driven to work together through the driving shaft, so that the first gear pump 32 can deliver hydraulic oil.

[0036] In the embodiment, the front side of the first hydraulic oil tank 31 is provided with an oil tank thermometer 311 and an oil tank liquid level gauge 312, and the top of the first hydraulic oil tank 31 is fixedly installed with an oil tank radiator 313. That is, the working efficiency of the hydraulic oil is increased, and the oil tank liquid level gauge 312 and the oil tank thermometer 311 are also increased to understand the working properties of the hydraulic oil in time. In order to improve the working time of the first gear pump 32, all the hydraulic oil passes through a specially designed hydraulic oil filter to ensure the purity of the oil and improve the service life of the hydraulic oil, protect the main equipment, and improve the service life of the whole equipment. At the same time, the oil tank radiator 313 is a plug-in radiator.

[0037] In the embodiment, the first hydraulic ram 344 can be displaced inside the first hydraulic cylinder 343, while the first aluminum alloy piston 345 is provided with four piston rings outside, which are made of wear-resistant material, meeting the needs of gas sealing while ensuring the long-term and durability of the piston. The first thermometer 346 and the first pressure gauge 347 can detect the pressure and temperature inside the first outer cylinder 341 in real time.

[0038] In the embodiment, the first hydraulic cylinder 343 is fixedly installed with the first centralizer outside, which is in contact with the inner wall of the first outer cylinder 341. Through the above structure, in order to reduce the wear of the first aluminum alloy piston 345 due to the downward pressure of its own gravity, the first centralizer made of plastic steel lightweight material is adopted to ensure the central movement of the piston and the stability of the system, reduce vibration and ensure the safe operation of the equipment.

[0039] In the embodiment, the first outer cylinder 341 adopts a positive air intake design, which requires that the air intake pressure cannot be lower than 25 psi. The principle of this design is based on economic considerations. If the air intake pressure is lower than 25 psi, the daily gas production will be less than 1000 square meters, which has no economic value. Gas with a pressure higher than 25 psi can automatically enter the inside of the first outer cylinder 341 from the upper groove 362 and the first exhaust port 365, pushing the first aluminum alloy piston 345 to move. Under the action of the first electromagnetic valve 7 assembly switch, the hydraulic oil pushes the first aluminum alloy piston 345 to start compressing the entering gas. Through the pressure value set by the control cabinet 5, when the compression pressure value is reached, the gas in the first outer cylinder 341 enters the second outer cylinder 351 through the left groove 362 and the second exhaust port 366. Under the instruction of the control system, the gas is compressed, and when the pressure value reaches the set pressure value, it is released from the third exhaust port 367. At the same time, the first outer cylinder 341 synchronously performs the first compression, and the cycle is executed to improve the operation efficiency.

[0040] In the embodiment, the second hydraulic ram 354 can be displaced inside the second hydraulic cylinder 353, while the second aluminum alloy piston 355 is provided with four piston rings outside, which are made of wear-resistant material, meeting the needs of gas sealing while ensuring the long-term and durability of the piston. The second thermometer 356 and the second pressure gauge 357 can detect the pressure and temperature inside the second outer cylinder 351 in real time.

[0041] In this embodiment, the second hydraulic cylinder 353 is externally fixedly installed with a second centralizer, the outer side of the second centralizer is in contact with the inner side wall of the first outer cylinder 341, through the above structure, at the same time, in order to reduce the wear of the second aluminum alloy piston 355 due to the downward pressure of its own gravity, a second centralizer made of plastic steel lightweight material is adopted, which ensures the central movement of the piston and the stability of the system, reduces vibration and ensures the safe operation of the equipment.

[0042] Continuing to refer to Figure 6 and Figure 7 , the single-stage liquid hydraulic compressor comprises a second hydraulic oil tank 41, a second gear pump 42, a second drive motor 43 and a single-stage compression piston assembly 44 fixedly installed on the skid-mounted chassis 1, the output end of the second drive motor 43 is connected with the input end of the second gear pump 42, the suction end of the second gear pump 42 is provided with a fourth connecting pipe 46, the other end of the fourth connecting pipe 46 is communicated with the oil outlet end of the second hydraulic oil tank 41, the discharge end of the second gear pump 42 is provided with a second electromagnetic valve 8, the other end of the second electromagnetic valve 8 is communicated with the oil inlet end of the single-stage compression piston assembly 44 through a fifth connecting pipe 47, the oil outlet end of the single-stage compression piston assembly 44 is communicated with the oil inlet end of the second hydraulic oil tank 41 through a sixth connecting pipe 48, the right side of the single-stage compression piston assembly 44 is provided with a two-way inlet and outlet valve 45, and the single-stage compression piston assembly 44 is arranged above the second hydraulic oil tank 41; the single-stage compression piston assembly 44 comprises a third outer cylinder 441, the third outer cylinder 441 is fixedly installed above the second hydraulic oil tank 41 on the skid-mounted chassis 1, the left end of the third outer cylinder 441 is fixedly installed with a third flange 442, the right end of the third flange 442 is fixedly installed with a third hydraulic cylinder 443, the right end of the third hydraulic cylinder 443 is provided with a third hydraulic plunger 444, the end of the third hydraulic plunger 444 away from the third hydraulic cylinder 443 is fixedly installed with a third aluminum alloy piston 445, and the top of the third outer cylinder 441 is fixedly installed with a third pressure gauge 446 penetrating and extending into the third outer cylinder 441; the two-way inlet and outlet valve 45 comprises a valve body 451, the valve body 451 is fixedly installed at the right end of the third outer cylinder 441, inlet and outlet holes 452 and 453 are arranged in the valve body 451, the right end of the inlet hole 452 is communicated with the liquid outlet pipe 25 of the separation tank 21 through a liquid passage pipe 9, the liquid passage pipe 9 is provided with a liquid switch valve and an inlet one-way valve, the left end of the inlet hole 452 is communicated with the inside of the third outer cylinder 441, the left end of the outlet hole 453 is communicated with the inside of the third outer cylinder 441, the right end of the outlet hole 453 is communicated with an external liquid delivery pipe, and the external liquid delivery pipe is provided with an outlet one-way valve. The equipment is divided into single-stage compression, meets the liquid pressure boosting demand, has a pressure gauge, can cut off power in case of abnormally high pressure, protects the safety of the equipment and the safety of the site personnel and property, and fully meets the requirements of site construction.

[0043] In the embodiment, the second hydraulic oil tank 41, the second gear pump 42 and the second driving motor 43 are respectively arranged in the same structure and working principle as the first hydraulic oil tank 31, the first gear pump 32 and the first driving motor 33.

[0044] In the embodiment, the control cabinet 5 is fixedly installed on the pry chassis 1, and the front surface of the control cabinet 5 is provided with a main switch and a USB socket. Through the above structure, the control cabinet 5 can control the start and stop of the whole device, and data in the control cabinet 5 can be transmitted out through the USB socket.

[0045] The working principle of the device is as follows: operation preparation, the technical service personnel first need to understand the purpose of using the equipment, different purposes have different requirements for the operation condition of the equipment; for the humidity, the associated gas injection, the wellhead gas compression construction, understand the well condition of the construction well, understand the pressure and composition of the gas, if it exceeds 100 psi, it is necessary to determine whether the gas contains solid particles such as fine sand and gravel, if there is sand and gravel, a simple sand removal device needs to be connected before the equipment is connected to prevent accidental damage to the equipment; check the equipment to ensure that it is not damaged during transportation, record the relevant data such as hydraulic fluid level data, temperature data and control system operation parameters, check whether the equipment is placed in a horizontal state, especially pay attention to check whether there is oil leakage at each joint, test the level of the equipment, ensure that the equipment is on a flat well site, preferably on a sleeper, correctly connect the power supply and ground wire; equipment operation, gas-liquid separation process, gas-liquid mixture enters the tank cavity 22 of the separation tank 21 through the inlet pipe 23, according to the different densities of gas and liquid, the separated gas is discharged from the gas outlet pipe 24, and the separated liquid is discharged from the liquid outlet pipe 25; gas pressurization process, the gas enters the first-stage compression piston assembly 34 and the second-stage compression piston assembly 35 of the two-stage gas hydraulic compressor for pressurization, and the pressurized gas is finally delivered to the external gas delivery pipe from the third gas outlet 367 of the three-way inlet and outlet valve 36; liquid pressurization process, the liquid enters the single-stage compression piston assembly 44 of the single-stage liquid hydraulic compressor for pressurization, and the pressurized liquid is finally delivered to the external liquid delivery pipe from the liquid outlet hole 453 of the two-way inlet and outlet valve 45.

[0046] In the description of the embodiments of the present application, it should be noted that in the description of the present application, the terms "inner", "outer" and the like indicating the direction or position relationship are based on the direction or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or member must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0047] In the description of the application, the description of the terms "one embodiment", "some embodiments", "in this embodiment", "specific example", or "some examples" and the like means that the specific features, mechanisms, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the description, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction, within the scope of the technology disclosed in the specification.

[0048] The above is only a specific implementation of the application, but the protection scope of the application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the application, which should be covered within the protection scope of the application. Therefore, the protection scope of the application should be subject to the protection scope of the claims.

Claims

1. A gas-liquid split booster compressor apparatus, characterized by, The utility model relates to a kind of gas-liquid separation device, including pry chassis (1) and gas-liquid separator (2) installed on pry chassis (1), gas compressor (3), liquid compressor (4), control cabinet (5); The gas-liquid separator (2) includes a separation tank (21) with a tank cavity (22) for gas-liquid separation inside. The separation tank (21) has an inlet pipe (23) on the upper side of the sidewall, which communicates with the tank cavity (22). The inlet pipe (23) is used for the gas-liquid mixture to enter the tank cavity (22). The top of the separation tank (21) is provided with a gas outlet pipe (24) that communicates with the tank cavity (22). The lower part of the sidewall of the separation tank (21) is provided with a liquid outlet pipe (25) that communicates with the tank cavity (22). The gas compressor (3) is a two-stage gas hydraulic compressor. The inlet end of the two-stage gas hydraulic compressor communicates with the gas outlet pipe (24). The outlet end of the two-stage gas hydraulic compressor is used to communicate with the external gas transmission pipe. The two-stage gas hydraulic compressor is used for the pressurization of separated gas. The liquid compressor (4) is a single-stage liquid hydraulic compressor. The inlet end of the single-stage liquid hydraulic compressor communicates with the liquid outlet pipe (25). The outlet end of the single-stage liquid hydraulic compressor is used to communicate with the external liquid transmission pipe. The single-stage liquid hydraulic compressor is used for the pressurization of separated liquid. The control cabinet (5) is used to control the operation of the gas compressor (3) and the liquid compressor (4).

2. The gas-liquid split booster compressor device of claim 1, wherein, The bottom of the separation tank (21) is provided with a slag discharge pipe (26) that communicates with the tank cavity (22).

3. The gas-liquid split booster compressor device of claim 1, wherein, The connection between the gas outlet pipe (24) and the separation tank (21) is provided with a wire mesh demister (27).

4. The gas-liquid split booster compressor device of claim 1, wherein, The two-stage gas hydraulic compressor includes a first hydraulic oil tank (31), a first gear pump (32), and a first drive motor (33) fixedly installed on the pry chassis (1). The output end of the first drive motor (33) is connected to the input end of the first gear pump (32). The suction end of the first gear pump (32) is provided with a first connecting pipe (37). The other end of the first connecting pipe (37) communicates with the first hydraulic oil tank (31). A first-stage compression piston assembly (34) is fixedly installed above the first hydraulic oil tank (31) on the pry chassis (1). A second-stage compression piston assembly (35) is fixedly installed to the right of the first-stage compression piston assembly (34) on the pry chassis (1). A three-way inlet and exhaust valve (36) is arranged between the first-stage compression piston assembly (34) and the second-stage compression piston assembly (35). The discharge end of the first gear pump (32) is provided with two first solenoid valve (7) assemblies. The other ends of the two first solenoid valve (7) assemblies respectively communicate with the first-stage compression piston assembly (34) and the second-stage compression piston assembly (35) through a second connecting pipe (38). The opposite sides of the first-stage compression piston assembly (34) and the second-stage compression piston assembly (35) are both communicated with a third connecting pipe (39). The other end of the third connecting pipe (39) communicates with the first hydraulic oil tank (31).

5. The gas-liquid split boost compressor device of claim 4, wherein, The primary compression piston assembly (34) comprises a first outer cylinder (341), the first outer cylinder (341) is fixedly installed above the first hydraulic oil tank (31) on the rig-mounted chassis (1), the left end of the first outer cylinder (341) is fixedly installed with a first flange (342), the right end of the first flange (342) is fixedly installed with a first hydraulic cylinder (343), the right end of the first hydraulic cylinder (343) is provided with a first hydraulic plunger (344), the end of the first hydraulic plunger (344) away from the first hydraulic cylinder (343) is fixedly installed with a first aluminum alloy piston (345), and the top of the first outer cylinder (341) is fixedly installed with a first thermometer (346) and a first pressure gauge (347) with one end penetrating and extending into the first outer cylinder (341).

6. The gas-liquid split boost compressor device of claim 5, wherein, The three-way intake and exhaust valve (36) comprises a fixed block (361), the right end of the first outer cylinder (341) is fixedly installed with the fixed block (361), recesses (362) are formed in the upper side, the right side and the left side of the fixed block (361), springs (363) are fixedly installed in the inner sides of the recesses (362), valve caps (364) are fixedly installed at the other ends of the springs (363), a first exhaust port (365) is formed in the left side of the fixed block (361) and communicates with the upper recess (362), a second exhaust port (366) is formed in the right side of the fixed block (361) and communicates with the left recess (362), a third exhaust port (367) is formed in the upper side of the fixed block (361) and communicates with the right recess (362), and the upper recess (362) of the fixed block (361) communicates with the air outlet pipe (24) of the separation tank (21).

7. The gas-liquid split boost compressor device of claim 6, wherein, The secondary compression piston assembly (35) comprises a second outer cylinder (351), the right end of the fixed block (361) is fixedly installed with the second outer cylinder (351), the right end of the second outer cylinder (351) is fixedly installed with a second flange (352), the left end of the second flange (352) is fixedly installed with a second hydraulic cylinder (353), the left end of the second hydraulic cylinder (353) is provided with a second hydraulic plunger (354), the end of the second hydraulic plunger (354) away from the second hydraulic cylinder (353) is fixedly installed with a second aluminum alloy piston (355), and the top of the second outer cylinder (351) is fixedly installed with a second thermometer (356) and a second pressure gauge (357) with one end penetrating and extending into the second outer cylinder (351).

8. The gas-liquid split boost compressor device of claim 1, wherein, The single-stage liquid hydraulic compressor comprises a second hydraulic oil tank (41), a second gear pump (42), a second driving motor (43) and a single-stage compression piston assembly (44) fixedly installed on the skid-mounted chassis (1), the output end of the second driving motor (43) is connected with the input end of the second gear pump (42), the suction end of the second gear pump (42) is provided with a fourth connecting pipe (46), the other end of the fourth connecting pipe (46) is communicated with the oil outlet end of the second hydraulic oil tank (41), the discharge end of the second gear pump (42) is provided with a second electromagnetic valve (8), the other end of the second electromagnetic valve (8) is communicated with the oil inlet end of the single-stage compression piston assembly (44) through a fifth connecting pipe (47), the oil outlet end of the single-stage compression piston assembly (44) is communicated with the oil inlet end of the second hydraulic oil tank (41) through a sixth connecting pipe (48), the right side of the single-stage compression piston assembly (44) is provided with a two-way inlet and outlet valve (45), and the single-stage compression piston assembly (44) is arranged above the second hydraulic oil tank (41).

9. The gas-liquid split boost compressor device of claim 8, wherein, The single-stage compression piston assembly (44) comprises a third outer cylinder (441), the skid-mounted chassis (1) is fixedly installed with the third outer cylinder (441) above the second hydraulic oil tank (41), the left end of the third outer cylinder (441) is fixedly installed with a third flange (442), the right end of the third flange (442) is fixedly installed with a third hydraulic cylinder (443), the right end of the third hydraulic cylinder (443) is provided with a third hydraulic piston (444), the end of the third hydraulic piston (444) away from the third hydraulic cylinder (443) is fixedly installed with a third aluminum alloy piston (445), and the top of the third outer cylinder (441) is fixedly installed with a third pressure gauge (446) penetrating and extending into the third outer cylinder (441).

10. The gas-liquid split booster compressor device of claim 9, wherein, The two-way inlet and outlet valve (45) comprises a valve body (451), the valve body (451) is fixedly installed at the right end of the third outer cylinder (441), inlet and outlet holes (452) and (453) are arranged in the valve body (451) in a spaced manner, the right end of the inlet hole (452) is communicated with the liquid outlet pipe (25) of the separation tank (21), the left end of the inlet hole (452) is communicated with the inside of the third outer cylinder (441), the left end of the outlet hole (453) is communicated with the inside of the third outer cylinder (441), and the right end of the outlet hole (453) is communicated with an external liquid conveying pipe.

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