CN212298574U - Natural gas recovery supercharging device - Google Patents
Natural gas recovery supercharging device Download PDFInfo
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- CN212298574U CN212298574U CN202022128004.1U CN202022128004U CN212298574U CN 212298574 U CN212298574 U CN 212298574U CN 202022128004 U CN202022128004 U CN 202022128004U CN 212298574 U CN212298574 U CN 212298574U
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Abstract
The utility model belongs to the field of fluid conveying equipment, in particular to a natural gas recovery supercharging device, which comprises a frame, a control cabinet, a gas collecting pipe, a compression supercharging component and a first coarse dehydration tower, wherein the control cabinet is internally provided with a PLC; the gas collecting pipe is sequentially provided with a pressure transmitter, a pressure gauge, a ball valve, a 15KW electric heat exchanger and a pre-filter from front to back along the conveying direction of a gas source; the compression pressurizing assembly comprises an oil tank, a motor, a hydraulic pump, a control valve group, a cylinder body assembly and a safety valve group, wherein an air inlet of the cylinder body assembly is connected with a first exhaust port of a front filter, and an air inlet of the first coarse dehydration tower is connected with an exhaust port of the compression pressurizing assembly. The utility model discloses go out at the discharge and add electric heat exchanger, the prevention leads to the natural gas normal water to freeze because weather is cold, and the cylinder body assembly adopts two high-efficient compressions of side moreover, solves the problem that prior art compression efficiency is low.
Description
Technical Field
The utility model belongs to the technical field of fluid conveying equipment, specifically a supercharging device is retrieved to natural gas.
Background
After the gas well is mined for a long time, the pressure of a well head is slowly reduced to 0.3-2MPa from high pressure, and natural gas (containing a small amount of water) from the gas well needs to be pressurized to be more than 3-3.5MPa and then is conveyed to a treatment station through a long-distance pipeline for centralized treatment. In order to fully excavate the potential of an old well, realize the maximization of yield, improve the final recovery efficiency of a gas reservoir, increase the yield and efficiency and reduce the environmental pollution caused by emptying, the research of a gas recovery device is always a key research object of a gas production enterprise.
The gas recovery unit who often adopts at present is the compression sledge, exists following not enough to the exploitation operation of old well natural gas:
1. because the water in the natural gas is unsaturated water at low pressure and the water content is different from 10 to 25 percent, the water in the natural gas is frozen in winter in high latitude areas, and the exploitation operation efficiency is influenced;
2. because of this kind of operating mode well head is more, and the actual well head displacement every day is unstable, and conventional single cylinder compression supercharging device is inefficiency, the unstable problem of work load.
Therefore, how to overcome the above technical problems and disadvantages is a problem to be solved.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at prior art's is not enough, provides a supercharging device is retrieved to natural gas, goes out at the discharge and adds electric heat exchanger, and the prevention leads to the natural gas normal water to freeze because weather is cold, and the cylinder body assembly adopts two high-efficient compressions of side moreover, solves the problem that prior art compression efficiency is low.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
the natural gas recovery supercharging device comprises a frame, and a control cabinet, a gas collecting pipe, a compression supercharging assembly and a first coarse dehydration tower which are arranged in the frame, wherein a PLC is arranged in the control cabinet; the gas collecting pipe, the compression supercharging component and the first coarse dehydration tower are sequentially connected;
the gas collecting pipe is sequentially provided with a pressure transmitter, an electric heat exchanger and a pre-filter from front to back along the gas source conveying direction;
the compression pressurizing assembly comprises an oil tank, a motor, a hydraulic pump, a control valve group, a cylinder body assembly and a safety valve group, wherein the oil tank is connected with the hydraulic pump through a high-pressure hose, the hydraulic pump is connected with the motor through a coupler, an oil outlet of the hydraulic pump is connected with the control valve group, the control valve group is used for realizing loading and reversing of hydraulic oil, an oil inlet and an oil outlet of the control valve group are respectively connected with an oil inlet and an oil outlet of the cylinder body assembly, and an oil return port of the control valve group is; a low-pressure gas inlet of the cylinder body assembly is connected with a first exhaust port of the pre-filter;
the air inlet of the first coarse dehydration tower is connected with the air outlet of the compression and pressurization assembly, the lower end of the first coarse dehydration tower is provided with a liquid level meter and a pneumatic valve, the signal output end of the liquid level meter is connected with the signal input end of a PLC, and the control end of the PLC is connected with the controlled end of the pneumatic valve; the first exhaust port of the first coarse dehydration tower is connected to the station gathering and transportation station.
Further, the cylinder body assembly comprises an oil cylinder and air cylinders positioned on two sides of the oil cylinder;
the oil cylinder comprises an oil cylinder body, oil seal assemblies are arranged at two ends of the oil cylinder body, an oil cylinder piston and piston rods positioned at two sides of the oil cylinder piston are arranged in the oil cylinder body, the oil cylinder piston is in sealed sliding connection with the oil cylinder body, and two oil holes are formed in the oil cylinder body and are respectively positioned at two sides of the oil cylinder piston;
the air cylinder comprises an air cylinder body, an air cylinder end cover positioned at the end part of the air cylinder body and an air cylinder piston positioned in the air cylinder body, wherein an air seal assembly is arranged at the inner side of the air cylinder end cover close to the oil cylinder, and a position sensor, a low-pressure air inlet and a high-pressure air outlet are arranged on the air cylinder end cover far away from the oil cylinder;
and one end of the piston rod, which is far away from the oil cylinder piston, penetrates through the oil seal assembly and the air seal assembly and then is fixedly connected with the air cylinder piston in the air cylinder body, and the piston rod is in sealed sliding connection with the oil seal assembly and the air seal assembly.
Furthermore, an oil discharge gap is formed between the oil seal assembly and the air seal assembly, and an oil discharge hole communicated with the oil discharge gap is formed in an air seal end cover close to the oil cylinder.
Furthermore, the oil seal assembly comprises an oil seal retainer ring and an oil seal baffle, an oil cylinder shaft seal copper ring and a piston oil seal bushing are arranged between the oil seal retainer ring and the oil seal baffle, an oil seal sealing ring is arranged on the inner side of the piston oil seal bushing, and a sealing ring is arranged between the oil seal baffle and the oil cylinder body.
Further, the gas seal assembly comprises a cylinder shaft seal copper ring, a gas seal retainer ring and a gas seal sealing ring positioned between the cylinder shaft seal copper ring and the gas seal retainer ring.
Furthermore, a water cylinder body is arranged outside the air cylinder body, two ends of the water cylinder body are respectively in sealing connection with the air cylinder end cover, a cooling liquid containing cavity is formed between the air cylinder body and the water cylinder body, and a cooling liquid inlet and a cooling liquid outlet which are communicated with the cooling liquid containing cavity are formed in the water cylinder body.
Further, the second exhaust port of the pre-filter is connected with the air inlet of the first coarse dehydration tower.
The system further comprises a second coarse dehydration tower, a pressure reducing device, a third water outlet tower and a gas generator which are sequentially connected, wherein the gas inlet of the second coarse dehydration tower is connected with the second gas outlet of the first coarse dehydration tower.
Further, a cooler is arranged on the top of the frame.
The utility model discloses a natural gas recovery supercharging device's beneficial effect:
1. the utility model discloses a supercharging device is retrieved to natural gas goes out at the discharge and adds electric heat exchanger, and the prevention leads to the frozen problem of natural gas normal water because weather is cold.
2. The cylinder body assembly adopts two high-efficient compressions of side, very big promotion natural gas compression efficiency.
3. The unit adopts air cooling and closed circulation water cooling mode cooling, wholly seals skid-mounted, and concrete degree of automation and integration is high, easy operation, operation safe and reliable, maintenance are convenient, practices thrift the operating cost.
4. The cylinder body assembly adopts two effective compressions of side, very big promotion natural gas compression efficiency, specifically do: the motor drives the hydraulic pump to generate high-pressure oil to drive the piston in the hydraulic cylinder to move, and the oil cylinder piston is controlled and driven to reciprocate by periodically changing the flow direction of the power oil, so that the suction and extrusion of natural gas and liquid are realized, and the pressurization of the natural gas and liquid is realized. The machine set can adopt constant power or variable power control, reasonably utilizes limited power according to different working conditions, achieves the optimal efficiency ratio and improves the power utilization rate.
5. Water and sand in the natural gas are subjected to coarse filtration, and the filtered and compressed gas is conveyed to a gathering and transportation station for centralized treatment, so that the problem of high cost caused by the double-tower adsorption dehydration in the prior art is solved.
6. This application adds a pipeline between leading filter and first coarse dehydration tower, directly dewaters the higher natural gas of pressure value in the gas well, the energy consumption of reduction device.
7. The utility model discloses adopted the sealed and leak protection oil measure of two-stage between hydro-cylinder and cylinder. Oil seal assembly has been installed at the tip of hydro-cylinder, air seal assembly has been installed at the tip of cylinder, and designed oil extraction gap and oil drain hole between air seal assembly and oil seal assembly, if hydraulic oil permeates out through oil seal assembly under the effect of pressure, the hydraulic oil that spills this moment will gather in the gap between oil seal assembly and air seal assembly, it increases the outer oil receiving box of subassembly to arrange the compression along the oil drain hole, there is the oil waste monitoring device on oil receiving box, after the maintainer discovers the data unusual, will change the processing to oil seal assembly, oil can't get into the air chamber through air seal device, form the complete separation of hydraulic oil and natural gas.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic structural view of the cylinder assembly of the present invention;
FIG. 4 is a sectional view of the cylinder assembly of the present invention
FIG. 5 is an enlarged view of reference character A in FIG. 4;
FIG. 6 is an enlarged view of reference number B in FIG. 4;
fig. 7 is a process diagram of the pipeline layout of the present invention.
In the figure: 1-frame, 2-third water outlet tower, 3-gas generator, 4-control cabinet, 5-gas collecting pipe, 6-first coarse dehydration tower, 7-second coarse dehydration tower, 8-pressure reducer, 9-cooler, 10-pressure transmitter, 11-electric heat exchanger, 12-prefilter, 13-oil tank, 14-motor, 15-hydraulic pump, 16-cylinder assembly, 17-cylinder body, 18-cylinder piston, 19-piston rod, 20-oil hole, 21-oil seal retainer ring, 22-oil seal baffle, 23-cylinder copper ring, 24-piston oil seal bush, 25-oil seal ring, 26-screw rod, 27-cylinder body, 28-cylinder end cover, 29-cylinder piston, 30-position sensor, 31-low pressure gas inlet, 32-high pressure gas outlet, 33-magnet fixed block, 34-cylinder shaft seal copper ring, 35-gas seal retainer ring, 36-gas seal sealing ring, 37-oil discharge gap, 38-oil discharge hole, 39-water cylinder body, 40-cooling liquid inlet, 41-cooling liquid outlet and 42-magnet adjusting pad.
Detailed Description
The natural gas recovery pressurizing device of the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1 and 7, the utility model discloses a natural gas recovery supercharging device, including frame 1, third play dehydration tower 2 and gas generator 3, set up switch board 4, discharge 5, compression pressure boost subassembly, first thick dehydration tower 6, the thick dehydration tower 7 of second, pressure relief device 8 and cooler 9 in the frame 1, discharge 5, compression pressure boost subassembly and first thick dehydration tower 6 are according to the preface in same direction as connecing. The frame 1 is formed by welding square steel and H-shaped steel.
A PLC is arranged in the control cabinet 4, and the PLC adopts commercially available Siemens sp 30.
Referring to fig. 1 and 7, the gas collecting pipe 5 is provided with a pressure transmitter 10, a 15KW electric heat exchanger 11 and a pre-filter 12 in sequence from front to back along the gas source conveying direction; the second gas outlet of the pre-filter 12 is connected to the gas inlet of the first rough dehydration column 6. The pressure transmitter 10 is an electronic pressure gauge with a display, has a transmission function, and can remotely transmit pressure data in the gas collecting pipe in real time; the pre-filter 12 is used to filter silt from the natural gas.
Referring to fig. 1 and 7, the compression and pressurization assembly includes an oil tank 13, a motor 14, a hydraulic pump 15, a control valve group, a cylinder assembly 16 and a safety valve group, the oil tank 13 is connected with the hydraulic pump 15 through a high-pressure hose, the hydraulic pump 15 is connected with the motor 14 through a coupling, and an oil outlet of the hydraulic pump 15 is connected with the control valve group.
Referring to fig. 2 to 6, the cylinder assembly includes an oil cylinder and air cylinders located at both sides of the oil cylinder; the oil cylinder comprises an oil cylinder body 17, the oil cylinder body 17 is fixed between the two oil cylinders through a screw 26, oil seal assemblies are arranged at two ends of the oil cylinder body, an oil cylinder piston 18 and piston rods 19 positioned at two sides of the oil cylinder piston 18 are arranged in the oil cylinder body 17, the oil cylinder piston 18 is in sealed sliding connection with the oil cylinder body 17, two oil holes 20 are formed in the oil cylinder body 17, and the two oil holes 20 are respectively positioned at two sides of the oil cylinder piston 18; the oil seal assembly comprises an oil seal retainer ring 21 and an oil seal baffle 22, an oil cylinder shaft seal copper ring 23 and a piston oil seal bushing 24 are arranged between the oil seal retainer ring 21 and the oil seal baffle 22, and an oil seal sealing ring 25 is arranged on the inner side of the piston oil seal bushing 24. A sealing ring is arranged between the oil seal baffle 22 and the cylinder body 17.
Referring to fig. 2 to 6, the cylinder comprises a cylinder body 27, a cylinder end cover 28 located at the end of the cylinder body 27, and a cylinder piston 29 located in the cylinder body 27, an air seal assembly is arranged on the inner side of the cylinder end cover 28 close to the cylinder, a position sensor 30, a low-pressure air inlet 31 and a high-pressure air outlet 32 are arranged on the cylinder end cover 28 far away from the cylinder, and the low-pressure air inlet 31 of the cylinder is connected with a first exhaust port of the pre-filter 12; the gas seal assembly comprises a cylinder shaft seal copper ring 34, a gas seal retainer ring 35 and a gas seal sealing ring 36 positioned between the cylinder shaft seal copper ring 34 and the gas seal retainer ring 35. The end of the cylinder piston 29 is provided with a blind hole, a magnet adjusting pad 42 and a magnet fixing block 33 are arranged in the blind hole, and the magnet adjusting pad 42 and the magnet fixing block 33 are fixedly connected with the cylinder piston 29 through screws.
Referring to fig. 2 to 6, one end of the piston rod 19, which is far away from the cylinder piston 18, penetrates through the oil seal assembly and the gas seal assembly and is then fixedly connected with the cylinder piston 29 in the cylinder body 27, the piston rod 19 is in sliding connection with the oil seal assembly and the gas seal assembly in a sealing manner, an oil discharge gap 37 is arranged between the oil seal assembly and the gas seal assembly, and an oil discharge hole 38 communicated with the oil discharge gap 37 is arranged on the gas seal end cover 28, which is close to the cylinder.
Referring to fig. 2 to 6, a water cylinder body 39 is arranged outside the air cylinder body 27, two ends of the water cylinder body 39 are respectively connected with the air cylinder end cover 28 in a sealing manner, a cooling liquid accommodating cavity is defined between the air cylinder body 27 and the water cylinder body 39, and a cooling liquid inlet 40 and a cooling liquid outlet 41 which are communicated with the cooling liquid accommodating cavity are arranged on the water cylinder body 39.
The control valve group realizes loading and reversing of hydraulic oil, an oil inlet and an oil outlet of the control valve group are respectively connected with an oil inlet and an oil outlet of the cylinder body assembly, and an oil return port of the control valve group is connected with an oil return filter and then returns to an oil tank;
referring to fig. 7, the first coarse dehydration tower 6 is a spiral separation type coarse dehydration tower, an air inlet of the first coarse dehydration tower 6 is connected with a high-pressure air exhaust port 32 of an air cylinder, a liquid level meter and a pneumatic valve are arranged at the lower end of the first coarse dehydration tower 6, a signal output end of the liquid level meter is connected with a signal input end of a PLC, and a control end of the PLC is connected with a controlled end of the pneumatic valve; the first exhaust port of the first coarse dewatering tower is connected to a fine dewatering device of a station gathering and transporting station, a liquid level meter adopts a commercially available Shaanxi Ruizhi product, and a pneumatic valve adopts a commercially available combined fertilizer Xuanyuan product.
Referring to fig. 7, the second coarse dehydrating tower 7, the pressure reducing device 8, the third water outlet tower 2 and the gas generator 3 are sequentially connected, and the gas inlet of the second coarse dehydrating tower 7 is connected with the second gas outlet of the first coarse dehydrating tower 6. The pressure reducing component adopts a commercially available product and comprises a pressure regulator, a ball valve, a safety valve and a pressure transmitter, wherein the pressure regulator is forever in Hebei, the ball valve is Shanghai, the safety valve is forever in Hebei, and the pressure transmitter is Shaanxi Ruizui.
Referring to fig. 1, a cooler 9 is installed at the top of a frame 1, the cooler comprises a finned tube support, a radiating finned tube, a water tank and a fan, the finned tube support fixes the radiating finned tube at the top of the frame, the water tank is embedded into a finned tube reserved space, three sides of the water tank are plugged, one side of the water tank is hollow, the fan is arranged on a bottom plate of the finned tube support and is fixed through bolt welding, and the bottom plate is provided with an air inlet.
The utility model discloses as follows at the operation principle:
1. gathering natural gas in a plurality of gas wells in the station at a gas collecting pipe through a pipeline; the electric heater heats the natural gas, water and ice are prevented in advance, and the pre-filter coarsely filters silt in the natural gas and then conveys the natural gas into the compression pressurizing assembly;
2. in the compression pressurizing assembly, an output shaft of a motor is connected with an oil pump through a coupler, the hydraulic pump is connected with an oil tank through a high-pressure hose, an oil outlet of the hydraulic pump is connected with a first oil inlet of a control valve block group through an oil pipe, a second oil outlet of a first oil outlet on the control valve block group is respectively connected with two oil holes of an oil cylinder through two pipelines, a third oil outlet of the valve block group is provided with an oil return pipe, and the oil return pipe is connected with a cooler and finally returns to the oil tank. And a pressure relief valve is arranged beside the second oil outlet of the control valve block group and used for oil way fault maintenance. The compressed natural gas is conveyed to a first coarse dehydration tower through a pipeline;
3. under the effect of first coarse dehydration tower, tentatively purify water and solid impurity in the natural gas, the produced sewage of purifying process discharges via the sewage pipe, through the natural gas after tentatively purifying, the first way leads to the further dehydration of the fine dehydration device in the station, and another way leads to gas generator behind second coarse dehydration tower, decompression subassembly and the third coarse dehydration tower, and gas generator provides the power supply for station equipment.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this application do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
The exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and changes may be made to the specific embodiments without departing from the concept of the present invention, and various combinations of the technical features and structures of the present invention may be implemented without departing from the scope of the present invention.
Claims (9)
1. Natural gas recovery supercharging device, its characterized in that: the device comprises a frame, and a control cabinet, a gas collecting pipe, a compression and pressurization assembly and a first coarse dehydration tower which are arranged in the frame, wherein a PLC is arranged in the control cabinet; the gas collecting pipe, the compression supercharging component and the first coarse dehydration tower are sequentially connected;
the gas collecting pipe is sequentially provided with a pressure transmitter, an electric heat exchanger and a pre-filter from front to back along the gas source conveying direction;
the compression pressurizing assembly comprises an oil tank, a motor, a hydraulic pump, a control valve group, a cylinder body assembly and a safety valve group, wherein the oil tank is connected with the hydraulic pump through a high-pressure hose, the hydraulic pump is connected with the motor through a coupler, an oil outlet of the hydraulic pump is connected with the control valve group, the control valve group is used for realizing loading and reversing of hydraulic oil, an oil inlet and an oil outlet of the control valve group are respectively connected with an oil inlet and an oil outlet of the cylinder body assembly, and an oil return port of the control valve group is; a low-pressure gas inlet of the cylinder body assembly is connected with a first exhaust port of the pre-filter;
the air inlet of the first coarse dehydration tower is connected with the air outlet of the compression and pressurization assembly, the lower end of the first coarse dehydration tower is provided with a liquid level meter and a pneumatic valve, the signal output end of the liquid level meter is connected with the signal input end of a PLC, and the control end of the PLC is connected with the controlled end of the pneumatic valve; the first exhaust port of the first coarse dehydration tower is connected to the station gathering and transportation station.
2. The natural gas recovery and pressurization device according to claim 1, characterized in that: the cylinder body assembly comprises an oil cylinder and air cylinders positioned on two sides of the oil cylinder;
the oil cylinder comprises an oil cylinder body, oil seal assemblies are arranged at two ends of the oil cylinder body, an oil cylinder piston and piston rods positioned at two sides of the oil cylinder piston are arranged in the oil cylinder body, the oil cylinder piston is in sealed sliding connection with the oil cylinder body, and two oil holes are formed in the oil cylinder body and are respectively positioned at two sides of the oil cylinder piston;
the air cylinder comprises an air cylinder body, an air cylinder end cover positioned at the end part of the air cylinder body and an air cylinder piston positioned in the air cylinder body, wherein an air seal assembly is arranged at the inner side of the air cylinder end cover close to the oil cylinder, and a position sensor, a low-pressure air inlet and a high-pressure air outlet are arranged on the air cylinder end cover far away from the oil cylinder;
and one end of the piston rod, which is far away from the oil cylinder piston, penetrates through the oil seal assembly and the air seal assembly and then is fixedly connected with the air cylinder piston in the air cylinder body, and the piston rod is in sealed sliding connection with the oil seal assembly and the air seal assembly.
3. The natural gas recovery and pressurization device according to claim 2, characterized in that: an oil discharge gap is formed between the oil seal assembly and the air seal assembly, and an oil discharge hole communicated with the oil discharge gap is formed in an air seal end cover close to the oil cylinder.
4. The natural gas recovery and pressurization device according to claim 2, characterized in that: the oil seal assembly comprises an oil seal retainer ring and an oil seal baffle, an oil cylinder shaft seal copper ring and a piston oil seal bushing are arranged between the oil seal retainer ring and the oil seal baffle, an oil seal sealing ring is arranged on the inner side of the piston oil seal bushing, and a sealing ring is arranged between the oil seal baffle and an oil cylinder body.
5. The natural gas recovery and pressurization device according to claim 2, characterized in that: the air seal assembly comprises a cylinder shaft seal copper ring, an air seal check ring and an air seal sealing ring positioned between the cylinder shaft seal copper ring and the air seal check ring.
6. The natural gas recovery and pressurization device according to claim 2, characterized in that: the cylinder body is externally provided with a water cylinder body, two ends of the water cylinder body are respectively connected with the cylinder end covers in a sealing mode, a cooling liquid containing cavity is formed between the cylinder body and the water cylinder body, and the water cylinder body is provided with a cooling liquid inlet and a cooling liquid outlet which are communicated with the cooling liquid containing cavity.
7. The natural gas recovery and pressurization device according to claim 1, characterized in that: and the second exhaust port of the pre-filter is connected with the air inlet of the first coarse dehydrating tower.
8. The natural gas recovery and pressurization device according to claim 1, characterized in that: the system also comprises a second coarse dehydration tower, a pressure reducing device, a third water outlet tower and a gas generator which are connected in sequence, wherein the gas inlet of the second coarse dehydration tower is connected with the second gas outlet of the first coarse dehydration tower.
9. The natural gas recovery and pressurization device according to claim 1, characterized in that: and a cooler is arranged at the top of the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022128004.1U CN212298574U (en) | 2020-09-24 | 2020-09-24 | Natural gas recovery supercharging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022128004.1U CN212298574U (en) | 2020-09-24 | 2020-09-24 | Natural gas recovery supercharging device |
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| CN212298574U true CN212298574U (en) | 2021-01-05 |
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| CN202022128004.1U Expired - Fee Related CN212298574U (en) | 2020-09-24 | 2020-09-24 | Natural gas recovery supercharging device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775504A (en) * | 2021-11-09 | 2021-12-10 | 东营众志石油工程技术有限公司 | Intelligence associated gas supercharging device |
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2020
- 2020-09-24 CN CN202022128004.1U patent/CN212298574U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775504A (en) * | 2021-11-09 | 2021-12-10 | 东营众志石油工程技术有限公司 | Intelligence associated gas supercharging device |
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Granted publication date: 20210105 |