Gas-liquid separate transportation booster compressor device

Abstract

The invention 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 present invention relates to the technical field of gas-liquid booster transmission, and in particular to a gas-liquid transmission booster compressor device. Background Art

[0002] With the development of domestic inefficient wells and the late stage of shale gas exploitation, a large number of wells have very low production, with daily production of less than 10,000 cubic meters and daily liquid production of no more than 100 tons. In addition, with the late stage of exploitation, the problem of flooding is prominent. Other conventional compressors cannot meet such low production, and drainage gas production equipment cannot extract formation water at low cost for a long time. A low-cost, easy-to-transport equipment that can be used for low-yield gas, preferably wet gas compression, is needed. Foreign companies have invested in research in the early days, but most of them gave up because the cost was too high to meet the market's low-cost requirements. Therefore, a gas-liquid separation hydraulic compressor device is proposed to solve the above-mentioned problems. Summary of the invention

[0003] The present invention is mainly used to solve the compression, collection and pressurized transportation of wet natural gas, acidic gas and mixed gas, and solves the problem that conventional compressors are not suitable for wet gas and mixed gas. At the same time, if the liquid ratio increases, the liquid is not easy to compress, resulting in the mixed transportation becoming pressure unstable and the entire system is prone to large jitters. Therefore, the present invention provides a gas-liquid transmission booster compressor device.

[0004] The present invention provides a gas-liquid transmission booster compressor device, comprising a skid-mounted chassis and a gas-liquid separator, a gas compressor, a liquid compressor, and a control cabinet installed on the skid-mounted chassis; the gas-liquid separator comprises a separation tank, a tank cavity for gas-liquid separation is provided in the separation tank, an inlet pipe communicating with the tank cavity is provided at the upper part of the side wall of the separation tank, the inlet pipe supplies a gas-liquid mixture to pass into the tank cavity, an outlet pipe communicating with the tank cavity is provided at the top of the separation tank, and a liquid outlet pipe communicating with the tank cavity is provided at the lower part of the side wall of the separation tank; the gas compressor is a two-stage gas hydraulic compressor, the air inlet end of the two-stage gas hydraulic compressor is communicated with the air outlet pipe, the air outlet end of the two-stage gas hydraulic compressor is used to communicate with an external gas transmission pipe, and the two-stage gas hydraulic compressor is used for pressurizing the separation gas; 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, the liquid outlet end of the single-stage liquid hydraulic compressor is used to communicate with an external liquid transmission pipe, and the single-stage liquid hydraulic compressor is used for pressurizing the separation liquid; the control cabinet is used to control the operation of the gas compressor and the liquid compressor.

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

[0006] In a possible implementation manner, a wire mesh demister is provided at the connection between the gas outlet pipe and the separation tank.

[0007] In a possible embodiment, the two-stage gas hydraulic compressor includes a first hydraulic oil tank, a first gear pump and a first drive motor fixedly mounted on a skid-mounted chassis, the output end of the first drive motor is connected to the input end of the first gear pump, a first connecting pipe is provided at the suction end of the first gear pump, the other end of the first connecting pipe is connected to the first hydraulic oil tank, a first compression piston assembly located above the first hydraulic oil tank is fixedly mounted on the skid-mounted chassis, a second compression piston assembly located to the right of the first compression piston assembly is fixedly mounted on the skid-mounted chassis, a three-way inlet and exhaust valve is provided between the first compression piston assembly and the second compression piston assembly, two first solenoid valve assemblies are provided at the discharge end of the first gear pump, the other ends of the two first solenoid valve assemblies are respectively connected to the first compression piston assembly and the second compression piston assembly through the second connecting pipe, the first compression piston assembly and the second compression piston assembly are connected to the opposite sides thereof with a third connecting pipe, the other end of the third connecting pipe is connected to the first hydraulic oil tank.

[0008] In a possible embodiment, the first-stage compression piston assembly includes a first outer cylinder, the skid-mounted chassis has the first outer cylinder located above the first hydraulic oil tank fixedly mounted thereon, the left end of the first outer cylinder has a first flange fixedly mounted thereon, the right end of the first flange has a first hydraulic cylinder fixedly mounted thereon, the right end of the first hydraulic cylinder is provided with a first hydraulic plunger, the end of the first hydraulic plunger away from the first hydraulic cylinder has a first aluminum alloy piston fixedly mounted thereon, and the top of the first outer cylinder has a first thermometer and a first pressure gauge fixedly mounted thereon, one end of the first outer cylinder penetrating through and extending into the interior of the first outer cylinder.

[0009] In a possible embodiment, the three-way air inlet and exhaust valve includes a fixed block, a fixed block is fixedly installed on the right end of the first outer cylinder, grooves are provided on the top, right and left sides of the fixed block, a spring is fixedly installed on the inner side of the groove, a valve cap is fixedly installed on the other end of the spring, a first exhaust port connected to the upper groove is provided on the left side of the fixed block, a second exhaust port connected to the left groove is provided on the right side of the fixed block, a third exhaust port connected to the right groove is provided on the top of the fixed block, and the upper groove of the fixed block is connected to the outlet pipe of the separation tank.

[0010] In a possible embodiment, the two-stage compression piston assembly includes a second outer cylinder, the right end of the fixed block is fixedly mounted with the second outer cylinder, the right end of the second outer cylinder is fixedly mounted with a second flange, the left end of the second flange is fixedly mounted with a second hydraulic cylinder, the left end of the second hydraulic cylinder is provided with a second hydraulic plunger, the end of the second hydraulic plunger away from the second hydraulic cylinder is fixedly mounted with a second aluminum alloy piston, and the top of the second outer cylinder is fixedly mounted with a second thermometer and a second pressure gauge with one end penetrating and extending into the interior of the second outer cylinder.

[0011] In a possible embodiment, the single-stage liquid hydraulic compressor includes a second hydraulic oil tank, a second gear pump, a second drive motor and a single-stage compression piston assembly fixedly mounted on a skid-mounted chassis, the output end of the second drive motor is connected to the input end of the second gear pump, a fourth connecting pipe is provided at the suction end of the second gear pump, the other end of the fourth connecting pipe is connected to the oil outlet end of the second hydraulic oil tank, a second solenoid valve is provided at the discharge end of the second gear pump, the other end of the second solenoid valve is connected to 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 to the oil inlet end of the second hydraulic oil tank through a sixth connecting pipe, a two-way inlet and outlet valve is provided on the right side of the single-stage compression piston assembly, and the single-stage compression piston assembly is arranged above the second hydraulic oil tank.

[0012] In a possible embodiment, the single-stage compression piston assembly includes a third outer cylinder, the skid-mounted chassis is fixedly mounted with a third outer cylinder located above the second hydraulic oil tank, the left end of the third outer cylinder is fixedly mounted with a third flange, the right end of the third flange is fixedly mounted 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 mounted with a third aluminum alloy piston, and the top of the third outer cylinder is fixedly mounted with a third pressure gauge that penetrates and extends into the interior of the third outer cylinder.

[0013] In a possible embodiment, the two-way liquid inlet and outlet valve includes a valve body, which is fixedly mounted on the right end of the third outer tube, and the valve body is provided with a liquid inlet hole and a liquid outlet hole at intervals, the right end of the liquid inlet hole is connected to the liquid outlet pipe of the separation tank, the left end of the liquid inlet hole is connected to the interior of the third outer tube, the left end of the liquid outlet hole is connected to the interior of the third outer tube, and the right end of the liquid outlet hole is connected to an external liquid infusion tube.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: 1. This device can be used for the compression of various media such as dry gas, wet gas, acidic gas, industrial waste gas, etc. At the same time, it solves the problem of high liquid content mixed with other media, separation and compression and transportation respectively, perfectly solving the risk of high proportion of liquid in mixed transportation, severe system shaking and abnormal high pressure; perfectly solving the situation of high liquid volume and gas content, gas forming gas spring effect, and unable to compress and transport; and has the advantages of low cost, small size, easy mobility, simple assembly, easy operation and maintenance, etc., and is widely used in the upstream and midstream industries of oil and gas. In addition, it can also be used to collect low-yield gas at the wellhead, which can completely replace small-displacement CNG equipment, and can also be used in drainage and gas production services in oil and gas fields. At the same time, due to the high temperature of up to 200°C generated by compressed gas, asphaltene, wax and salt crystals in the wellbore and pipeline can be dissolved, so as to achieve the cleaning of pipelines, pipelines and wellbore unblocking and many other problems.

[0015] 2. The device is easy to operate, with high intelligent integration and full automatic control. The operator only needs to turn on the control system, connect the manifold according to the system prompts, and connect to the power supply. The input and outlet pressures can be automatically operated. The equipment has automatic protection for overpressure and high temperature. After overpressure, the system will run empty and exhaust until it reaches the working pressure range and starts to recirculate; after overtemperature, the system will also turn on automatic protection, the system will run empty without compressing gas, and start to run after the temperature stabilizes. The equipment is skid-mounted, easy to move, durable, reliable, and simple to maintain. Compared with traditional compressors, this equipment has been designed and manufactured in a lightweight manner, with an overall weight of less than 1.5 tons. It can be carried by a light truck and hoisted by an ordinary crane; it does not need to be disassembled and assembled, and can be used after hoisting. The equipment has a large intake pressure range of 25-125psi, and a large optional range of compressed gas volume of 125-5000psi (0-35Mpa), unique elastic pulse wave technology and high temperature resistance; at the same time, parameters such as intake pressure, output pressure, and compression volume can be set through the control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the partial structure of the present invention Figure 1 ; Figure 3 It is a schematic diagram of the partial structure of the present invention Figure 2 ; Figure 4 It is a schematic diagram of the partial structure of the present invention Figure 3 ; Figure 5 It is a schematic diagram of the partial structure of the present invention Figure 4 ; Figure 6 It is a schematic diagram of the partial structure of the present invention Figure 5 ; Figure 7 It is a schematic diagram of the partial structure of the present invention Figure 6 ; Description of reference numerals: 1. Skid-mounted 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 level gauge; 313. Oil tank radiator; 32. First gear pump; 33. First drive motor; 34. First compression piston assembly; 341. First Outer cylinder; 342, first flange; 343, first hydraulic cylinder; 344, first hydraulic plunger; 345, first aluminum alloy piston; 346, first thermometer; 347, first pressure gauge; 35, two-stage compression piston assembly; 351, second outer cylinder; 352, second flange; 353, second hydraulic cylinder; 354, second hydraulic plunger; 355, second aluminum alloy piston; 356, second thermometer; 357, second pressure gauge; 36, three-way inlet and outlet 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 plunger; 445, third aluminum alloy piston; 446, third pressure gauge; 45, two-way liquid 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, ventilation pipe; 7, first solenoid valve; 8, second solenoid valve; 9, liquid pipe. DETAILED DESCRIPTION

[0017] First, those skilled in the art should understand that these implementations 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 make adjustments to them as needed to adapt to specific application scenarios.

[0018] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0019] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean 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, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0020] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] See also Figures 1 to 7 The embodiment of the present application discloses a gas-liquid transmission booster compressor device, including 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 includes a separation tank 21, and a tank cavity 22 for gas-liquid separation is provided in the separation tank 21. An inlet pipe 23 connected to the tank cavity 22 is provided on the upper part of the side wall of the separation tank 21, and the inlet pipe 23 is used to supply a gas-liquid mixture into the tank cavity 22. An outlet pipe 24 connected to the tank cavity 22 is provided on the top of the separation tank 21, and a liquid outlet pipe 25 connected to the tank cavity 22 is provided on the lower part of the side wall of the separation tank 21; the gas The gas compressor 3 is a two-stage gas hydraulic compressor, the air inlet end of which is connected to the air outlet pipe 24, and the air outlet end of which is used to be connected to an external gas pipeline, and the two-stage gas hydraulic compressor is used to separate the pressurization of the gas; the liquid compressor 4 is a single-stage liquid hydraulic compressor, the liquid inlet end of which is connected to the liquid outlet pipe 25, and the liquid outlet end of which is used to be connected to an external liquid pipeline, and the single-stage liquid hydraulic compressor is used to separate the pressurization of the liquid; the control cabinet 5 is used to control the operation of the gas compressor 3 and the liquid compressor 4.

[0022] As can be known from the above, the skid-mounted 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 is also convenient for the transfer of the entire device; by setting the gas-liquid separator 2, the gas-liquid mixture is separated into gas from the gas outlet pipe 24, and the liquid is separated from the liquid outlet pipe 25, thereby realizing the separation of the gas-liquid two-phase; by setting the gas compressor 3 and the liquid compressor 4, the gas and liquid are pressurized separately after separation, thereby meeting the pressurized transportation of the mixed gas, avoiding unstable pressurization, and improving the reliability of pressurized transportation.

[0023] Continue to see Figure 1In this embodiment, a slag discharge pipe 26 communicating with the tank cavity 22 is provided at the bottom of the separation tank 21, and a slag discharge switch valve is provided on the slag discharge pipe 26, thereby allowing solid impurities in the mixed gas to be deposited and discharged from the separation tank 21, thereby 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-mounted chassis 1 through a triangular support frame.

[0024] In order to improve the reliability of gas-liquid separation, a wire mesh demister 27 is provided at the connection between the gas outlet pipe 24 and the separation tank 21 to further ensure the separation of gas and liquid. The wire mesh demister 27 is a prior art and will not be described in detail herein.

[0025] Continue to see Figures 2 to 5The two-stage gas hydraulic compressor includes a first hydraulic oil tank 31, a first gear pump 32 and a first drive motor 33 fixedly mounted on the skid-mounted 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 is connected to the first hydraulic oil tank 31. A first compression piston assembly 34 located above the first hydraulic oil tank 31 is fixedly mounted on the skid-mounted chassis 1. A second compression piston assembly 35 located to the right of the first compression piston assembly 34 is fixedly mounted on the skid-mounted chassis 1. The first compression piston assembly 34 is connected to the second A three-way inlet and outlet valve 36 is arranged between the compression piston assemblies 35, two first solenoid valve 7 assemblies are arranged at the discharge end of the first gear pump 32, and the other ends of the two first solenoid valve 7 assemblies are respectively connected to the first-stage compression piston assembly 34 and the second-stage compression piston assembly 35 through the second connecting pipe 38, and the first-stage compression piston assembly 34 and the second-stage compression piston assembly 35 are connected to the opposite sides thereof with a third connecting pipe 39, and the other end of the third connecting pipe 39 is connected to the first hydraulic oil tank 31; the first-stage compression piston assembly 34 includes a first outer cylinder 341, and the first outer cylinder 341 located above the first hydraulic oil tank 31 is fixedly installed on the skid-mounted chassis 1 The left end of the first outer cylinder 341 is fixedly mounted with a first flange 342, the right end of the first flange 342 is fixedly mounted 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 mounted with a first aluminum alloy piston 345, and the top of the first outer cylinder 341 is fixedly mounted with a first thermometer 346 and a first pressure gauge 347 with one end penetrating and extending into the interior of the first outer cylinder 341; the three-way intake and exhaust valve 36 includes a fixed block 361, the right end of the first outer cylinder 341 is fixedly mounted with a fixed block 361, the top of the fixed block 361, A groove 362 is provided on both the right and left sides, a spring 363 is fixedly installed on the inner side of the groove 362, a valve cap 364 is fixedly installed on the other end of the spring 363, a first exhaust port 365 connected to the upper groove 362 is provided on the left side of the fixed block 361, a second exhaust port 366 connected to the left groove 362 is provided on the right side of the fixed block 361, a third exhaust port 367 connected to the right groove 362 is provided on the upper side of the fixed block 361, the upper groove 362 of the fixed block 361 is connected to the outlet pipe 24 of the separation tank 21 through the ventilation pipe 6, and a gas switch valve is provided on the ventilation pipe 6;The two-stage compression piston assembly 35 includes a second outer cylinder 351, the second outer cylinder 351 is fixedly installed on the right end of the fixed block 361, the second flange 352 is fixedly installed on the right end of the second outer cylinder 351, the second hydraulic cylinder 353 is fixedly installed on the left end of the second flange 352, the second hydraulic cylinder 353 is provided with a second hydraulic plunger 354 at the left end of the second hydraulic cylinder 353, the second aluminum alloy piston 355 is fixedly installed on the end of the second hydraulic plunger 354 away from the second hydraulic cylinder 353, and the second thermometer 356 and the second pressure gauge 357, one end of which penetrates and extends into the interior of the second outer cylinder 351, are fixedly installed on the top of the second outer cylinder 351. Thus, the two-stage gas hydraulic compressor can pressurize the gas. The equipment is divided into two-stage compression to meet the high, medium and low gas pressurization requirements. It is equipped with a thermometer and a pressure gauge. Abnormally high pressure or high temperature can cut off the power to protect the safety of the equipment and the safety of the personnel and property on site, and fully meet the requirements of on-site construction. The structural characteristics of the equipment are analyzed. The main structure is different from the previous equipment. It is neither a screw compression principle nor a reciprocating compressor principle. It adopts low-speed hydraulic compression. Under low-speed compression, the temperature rises slowly, and the gas medium will not produce flash explosion hazards; it ensures the slow compression of moisture and acidic gas, which can not only ensure the pressure, but also prevent the safety problems caused by high temperature. The above problems are completely solved. The combination of the equipment's motor driving the gear pump to provide hydraulic power is mainly designed for the stability of power. At the same time, the overall weight is considered, so that the weight of the whole set of equipment is controlled within 1.5 tons. The equipment is located on a skid-mounted device and can be directly hoisted onto a small truck for easy transportation. The required site also needs to be simply leveled. In order to reduce vibration, the equipment is equipped with wooden sleepers to improve construction efficiency; the equipment adopts a lightweight design as a whole, which is convenient for transportation, consignment and hoisting. ;

[0026] In this embodiment, a driving shaft is provided at the output end of the first driving motor 33, and a connecting shaft is provided inside the first gear pump 32. The portion of the connecting shaft extending out of the first gear pump 32 is fixedly connected to the driving shaft through a coupling, that is, when the first driving motor 33 is in operation, the connecting shaft can be driven to operate together through the driving shaft, so that the first gear pump 32 can deliver hydraulic oil.

[0027] In this embodiment, a tank thermometer 311 and a tank level gauge 312 are provided on the front side of the first hydraulic oil tank 31, and a tank radiator 313 is fixedly installed on the top of the first hydraulic oil tank 31, so as to increase the working efficiency of the hydraulic oil. At the same time, the tank level gauge 312 and the tank thermometer 311 are added so as to timely understand the working properties of the hydraulic oil. In order to increase the working time of the first gear pump 32, all hydraulic oils are filtered through a specially designed hydraulic oil filter to ensure the purity of the oil, increase the service life of the hydraulic oil, protect the main equipment, and increase the overall service life of the equipment. At the same time, the tank radiator 313 is a plug-in radiator.

[0028] In this embodiment, the first hydraulic plunger 344 can be displaced on the inner side of the first hydraulic cylinder 343. At the same time, four piston rings are arranged on the outer side of the first aluminum alloy piston 345, and are made of wear-resistant material, which meets 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.

[0029] In this embodiment, a first stabilizer is fixedly installed on the outside of the first hydraulic cylinder 343, and the outer side of the first stabilizer is in contact with the inner wall of the first outer cylinder 341. Through the above-mentioned structural arrangement, and in order to reduce the wear of the first aluminum alloy piston 345 under the downward pressure generated by its own gravity, a first stabilizer made of lightweight plastic steel is adopted to ensure the central movement of the piston, ensure the stability of the system, reduce vibration, and ensure the safe operation of the equipment.

[0030] In this embodiment, an active air intake design is adopted in the first outer tube 341, and the air intake pressure is required not to be lower than 25psi. The principle of such design is based on economic considerations. If the air intake pressure is lower than 25psi, the daily gas production will generally be less than 1000 cubic meters, which has no economic value at all. Gas higher than 25psi can automatically enter the inner side of the first outer tube 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 switch of the first solenoid valve 7 component, the hydraulic oil pushes the first aluminum alloy piston 345 to start compressing the incoming gas. The pressure value is set by the control cabinet 5. After the compression pressure value is reached, the gas in the first outer tube 341 enters the second outer tube 351 through the left groove 362 and the second exhaust port 366. The gas is compressed under the command of the control system, and is released from the third exhaust port 367 after the pressure value reaches the set pressure value. At the same time, the first compression is synchronously performed in the first outer tube 341, and the cycle is executed to improve the operation efficiency.

[0031] In this embodiment, the second hydraulic plunger 354 can be displaced on the inner side of the second hydraulic cylinder 353. At the same time, four piston rings are arranged on the outer side of the second aluminum alloy piston 355, and are made of wear-resistant material, which meets 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.

[0032] In this embodiment, a second stabilizer is fixedly installed on the outside of the second hydraulic cylinder 353, and the outer side of the second stabilizer is in contact with the inner wall of the first outer cylinder 341. Through the above-mentioned structural arrangement, and in order to reduce the wear of the second aluminum alloy piston 355 under the downward pressure generated by its own gravity, a second stabilizer made of lightweight plastic steel is used to ensure the central movement of the piston, ensure the stability of the system, reduce vibration, and ensure the safe operation of the equipment.

[0033] Continue to see Figure 6 and Figure 7 The single-stage liquid hydraulic compressor includes 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 mounted on the skid-mounted chassis 1. The output end of the second drive motor 43 is connected to 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 connected to 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 solenoid valve 8. The other end of the second solenoid valve 8 is connected to the oil outlet end of the second hydraulic oil tank 41. The connecting pipe 47 is communicated with the oil inlet end of the single-stage compression piston assembly 44, and 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. A two-way inlet and outlet valve 45 is arranged on the right side of the single-stage compression piston assembly 44. The single-stage compression piston assembly 44 is arranged above the second hydraulic oil tank 41; the single-stage compression piston assembly 44 includes a third outer cylinder 441, and the skid-mounted chassis 1 is fixedly mounted with the third outer cylinder 441 located above the second hydraulic oil tank 41. The third outer cylinder 441 is fixedly mounted on the skid-mounted chassis 1. The left end of the 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, and 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 that penetrates and extends to the inside of the third outer cylinder 441; the two-way inlet and outlet valve 45 includes a valve body 451, and the valve body 451 is fixedly installed At the right end of the third outer cylinder 441, the valve body 451 is provided with a liquid inlet hole 452 and a liquid outlet hole 453 at intervals. The right end of the liquid inlet hole 452 is connected to the liquid outlet pipe 25 of the separation tank 21 through a liquid through pipe 9. The liquid through pipe 9 is provided with a liquid switch valve and a liquid inlet check valve. The left end of the liquid inlet hole 452 is connected to the interior of the third outer cylinder 441, the left end of the liquid outlet hole 453 is connected to the interior of the third outer cylinder 441, and the right end of the liquid outlet hole 453 is connected to the external infusion pipe, which is provided with a liquid outlet check valve. The equipment is divided into single-stage compression to meet the liquid pressurization requirements, and has a pressure gauge. Abnormally high pressure can cut off the power to protect the safety of the equipment and the safety of the personnel and property on site, fully meeting the requirements of on-site construction.

[0034] In this embodiment, the second hydraulic oil tank 41, the second gear pump 42, and the second drive motor 43 are respectively configured with the same structure and working principle as the first hydraulic oil tank 31, the first gear pump 32, and the first drive motor 33.

[0035] In this embodiment, a control cabinet 5 is fixedly installed on the skid-mounted chassis 1, and a main switch and a USB socket are provided on the front surface of the control cabinet 5. Through the above-mentioned structural setting, the control cabinet 5 can control the start and stop of the entire device, and at the same time, the data in the control cabinet 5 can be transmitted through the USB socket.

[0036] Working principle of the device of this application: In preparation for operation, technical service personnel must first clarify the purpose of the equipment. Different purposes have different requirements for the operating conditions of the equipment; for wet gas, associated gas reinjection, and wellhead gas compression construction, understand the well conditions of the construction well, understand the gas pressure and composition. If it exceeds 100psi, it is necessary to clarify whether the gas contains solid particles such as fine gravel. If there is 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 there is no damage during transportation, record the equipment hydraulic level data, temperature data, control system operating parameters and other related data, check whether the equipment is placed in a horizontal state, and pay special attention to check whether there is oil leakage at each joint, level the well site, and test the level of the equipment. Ensure that the equipment is on a flat well site, preferably with sleepers, and correctly connect the power supply and grounding wires; when the equipment is running, during the gas-liquid separation process, the gas-liquid mixture enters the tank cavity 22 of the separation tank 21 through the inlet pipe 23, and according to the different gas-liquid densities, the separated gas is discharged from the gas outlet pipe 24, and the separated liquid is discharged from the liquid outlet pipe 25; during the 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 transported to the external gas pipeline from the third exhaust port 367 of the three-way inlet and exhaust valve 36; during the 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 transported to the external liquid pipeline from the liquid outlet hole 453 of the two-way inlet and exhaust valve 45.

[0037] In the description of the embodiments of the present application, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

[0038] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0039] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A gas-liquid transmission booster compressor device, characterized in that: It 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 provided in the separation tank (21), an inlet pipe (23) communicating with the tank cavity (22) is provided at the upper part of the side wall of the separation tank (21), and the inlet pipe (23) is used to allow a gas-liquid mixture to pass into the tank cavity (22), an air outlet pipe (24) communicating with the tank cavity (22) is provided at the top of the separation tank (21), and a liquid outlet pipe (25) communicating with the tank cavity (22) is provided at 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 connected to the gas outlet pipe (24), the gas outlet end of the two-stage gas hydraulic compressor is used to communicate with an external gas pipeline, and the two-stage gas hydraulic compressor is used to pressurize the separation gas; The liquid compressor (4) is a single-stage liquid hydraulic compressor, the liquid inlet end of the single-stage liquid hydraulic compressor is connected to the liquid outlet pipe (25), the liquid outlet end of the single-stage liquid hydraulic compressor is used to communicate with an external liquid infusion pipe, and the single-stage liquid hydraulic compressor is used to increase the pressure of the 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 transmission booster compressor device according to claim 1, characterized in that: A slag discharge pipe (26) communicating with the tank cavity (22) is provided at the bottom of the separation tank (21).

3. The gas-liquid transmission booster compressor device according to claim 1, characterized in that: A wire mesh demister (27) is provided at the connection between the gas outlet pipe (24) and the separation tank (21).

4. The gas-liquid transmission booster compressor device according to claim 1, characterized in that: The two-stage gas hydraulic compressor comprises a first hydraulic oil tank (31), a first gear pump (32) and a first drive motor (33) fixedly mounted on a skid-mounted chassis (1); an output end of the first drive motor (33) is connected to an input end of the first gear pump (32); a first connecting pipe (37) is provided at a suction end of the first gear pump (32); the other end of the first connecting pipe (37) is connected to the first hydraulic oil tank (31); a first compression piston assembly (34) located above the first hydraulic oil tank (31) is fixedly mounted on the skid-mounted chassis (1); and a first compression piston assembly (34) located to the right of the first compression piston assembly (34) is fixedly mounted on the skid-mounted chassis (1). A two-stage compression piston assembly (35) is provided, a three-way inlet and outlet valve (36) is provided between the first-stage compression piston assembly (34) and the second-stage compression piston assembly (35), two first solenoid valve (7) assemblies are provided at the discharge end of the first gear pump (32), the other ends of the two first solenoid valve (7) assemblies are respectively connected to the first-stage compression piston assembly (34) and the second-stage compression piston assembly (35) through a second connecting pipe (38), the first-stage compression piston assembly (34) and the second-stage compression piston assembly (35) are connected to the opposite sides thereof with a third connecting pipe (39), the other end of the third connecting pipe (39) is connected to the first hydraulic oil tank (31).

5. The gas-liquid transmission booster compressor device according to claim 4, characterized in that: The first-stage compression piston assembly (34) comprises a first outer cylinder (341). The first outer cylinder (341) is fixedly mounted on the skid-mounted chassis (1) and is located above the first hydraulic oil tank (31). A first flange (342) is fixedly mounted on the left end of the first outer cylinder (341). A first hydraulic cylinder (343) is fixedly mounted on the right end of the first flange (342). A first hydraulic piston (344) is arranged on the right end of the first hydraulic cylinder (343). A first aluminum alloy piston (345) is fixedly mounted on the end of the first hydraulic piston (344) away from the first hydraulic cylinder (343). A first thermometer (346) and a first pressure gauge (347) are fixedly mounted on the top of the first outer cylinder (341), one end of which penetrates through and extends into the interior of the first outer cylinder (341).

6. The gas-liquid transmission booster compressor device according to claim 5, characterized in that: The three-way air inlet and outlet valve (36) comprises a fixed block (361), the right end of the first outer tube (341) is fixedly mounted with the fixed block (361), the upper side, right side and left side of the fixed block (361) are provided with grooves (362), the inner side of the groove (362) is fixedly mounted with a spring (363), the other end of the spring (363) is fixedly mounted with a valve cap (364), the left side of the fixed block (361) is provided with a first exhaust port (365) connected to the upper groove (362), the right side of the fixed block (361) is provided with a second exhaust port (366) connected to the left groove (362), the upper side of the fixed block (361) is provided with a third exhaust port (367) connected to the right groove (362), and the upper groove (362) of the fixed block (361) is connected to the exhaust pipe (24) of the separation tank (21).

7. The gas-liquid transmission booster compressor device according to claim 6, characterized in that: The two-stage compression piston assembly (35) comprises a second outer cylinder (351), the second outer cylinder (351) is fixedly mounted on the right end of the fixed block (361), the second flange (352) is fixedly mounted on the right end of the second outer cylinder (351), the second hydraulic cylinder (353) is fixedly mounted on the left end of the second flange (352), a second hydraulic plunger (354) is arranged on the left end of the second hydraulic cylinder (353), a second aluminum alloy piston (355) is fixedly mounted on the end of the second hydraulic plunger (354) away from the second hydraulic cylinder (353), and a second thermometer (356) and a second pressure gauge (357) are fixedly mounted on the top of the second outer cylinder (351), one end of which penetrates through and extends into the interior of the second outer cylinder (351).

8. The gas-liquid transmission booster compressor device according to claim 1, characterized in that: The single-stage liquid hydraulic compressor comprises a second hydraulic oil tank (41) fixedly mounted on a skid-mounted chassis (1), a second gear pump (42), a second drive motor (43) and a single-stage compression piston assembly (44); the output end of the second drive motor (43) is connected to the input end of the second gear pump (42); a fourth connecting pipe (46) is provided at the suction end of the second gear pump (42); the other end of the fourth connecting pipe (46) is connected to the oil outlet end of the second hydraulic oil tank (41); the second gear pump (42) A second solenoid valve (8) is provided at the discharge end of the single-stage compression piston assembly (44); the other end of the second solenoid valve (8) is connected to 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 connected to the oil inlet end of the second hydraulic oil tank (41) through a sixth connecting pipe (48); a two-way inlet and outlet valve (45) is provided on the right side of the single-stage compression piston assembly (44); and the single-stage compression piston assembly (44) is located above the second hydraulic oil tank (41).

9. The gas-liquid transmission booster compressor device according to claim 8, characterized in that: The single-stage compression piston assembly (44) comprises a third outer cylinder (441). The skid-mounted chassis (1) is fixedly mounted with the third outer cylinder (441) located above the second hydraulic oil tank (41). The left end of the third outer cylinder (441) is fixedly mounted with a third flange (442). The right end of the third flange (442) is fixedly mounted 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 mounted with a third aluminum alloy piston (445). The top of the third outer cylinder (441) is fixedly mounted with a third pressure gauge (446) that penetrates through and extends into the interior of the third outer cylinder (441).

10. The gas-liquid transmission booster compressor device according to claim 9, characterized in that: The two-way liquid inlet and outlet valve (45) comprises a valve body (451), wherein the valve body (451) is fixedly mounted on the right end of the third outer tube (441), and a liquid inlet hole (452) and a liquid outlet hole (453) are arranged in the valve body (451) at intervals, wherein the right end of the liquid inlet hole (452) is connected to the liquid outlet pipe (25) of the separation tank (21), the left end of the liquid inlet hole (452) is connected to the interior of the third outer tube (441), the left end of the liquid outlet hole (453) is connected to the interior of the third outer tube (441), and the right end of the liquid outlet hole (453) is connected to an external liquid infusion pipe.

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