Gas-liquid separation device for recovering oil gas in wharf

Abstract

The utility model discloses a gas-liquid separation device for recovering oil gas in a wharf. The gas-liquid separation device comprises a shell, and a first inlet for feeding gas is formed in the shell; the separation device is located in the shell, the separation device comprises a first barrel, a first cavity is defined between the first barrel and the shell, a spiral blade is arranged on the outer wall of the first barrel, and the spiral blade extends in the direction from the bottom end to the top end of the first barrel; a first outlet is formed in the first barrel; the first filtering device is located on the inner side of the separating device, a second cavity is formed in the inner side of the first filtering device, and a fourth cavity is formed between the first filtering device and the first barrel. The gas-liquid separation device is suitable for an oil-gas transmission system between a ship and a shore-based facility so as to ensure the safety and stability of oil-gas transmission.

Description

Technical Field

[0001] This application belongs to the field of oil and gas recovery and treatment technology, and specifically relates to a gas-liquid separation device for oil and gas recovery at a port. Background Technology

[0002] In port oil and gas recovery and treatment facilities, gas-liquid separation is a crucial step, especially during oil and gas transfer between ships and shore. The gas-liquid mixtures that may form during transfer, if not effectively separated, can not only affect transfer efficiency but also damage equipment and even cause safety accidents. Therefore, designing a highly efficient, safe, and easy-to-maintain gas-liquid separator is particularly important. Traditional gas-liquid separators often suffer from low filtration efficiency, difficult maintenance, and insufficient automation. They are particularly prone to clogging when handling oil and gas mixtures containing solid particles, affecting separation performance and long-term stable operation. Utility Model Content

[0003] Purpose of this utility model: This application provides a gas-liquid separation device for oil and gas recovery at a wharf. The gas-liquid separation device of this application is suitable for oil and gas transmission systems between ships and shore-based facilities, ensuring the safety and stability of oil and gas transmission.

[0004] Technical Solution: This application provides a gas-liquid separation device for oil and gas recovery at a dock. The gas-liquid separation device includes a shell with a first inlet for gas introduction; a separation device located inside the shell, comprising a first cylinder forming a first chamber with the shell, a spiral blade extending along the bottom to top of the first cylinder; a first outlet on the first cylinder; a first filter located inside the separation device, having a second chamber inside and a fourth chamber between the first filter and the first cylinder; the gas-liquid separation device having a first direction and a second direction intersecting the second direction, a first central axis along the first direction, and the shell, the separation device, and the first filter coaxially arranged along the first central axis.

[0005] In some embodiments, the gas-liquid separation device further includes a second filtration device located above the first filtration device. The second filtration device includes a first end cap and a first filter layer, the first end cap and the first filter layer forming a third chamber, the third chamber communicating with the first chamber and the second chamber.

[0006] In some embodiments, the first filter layer is a corrosion-resistant stainless steel multilayer wire mesh.

[0007] In some embodiments, the helical blade rotates counterclockwise, and the bottom end of the helical blade is located at the center left of the first outlet.

[0008] In some embodiments, the first cylinder has a first end and a second end, and the pitch of the helical blades gradually increases along the direction from the first end to the second end.

[0009] In some embodiments, the first filtration device includes a filter element fixing plate, a first filter element body fixed to the filter element fixing plate, and a filter element lower sealing plate disposed below the first filter element body. The first filter element body and the filter element fixing plate form an air inlet with an upper opening. Gas entering the interior of the first filter element body enters the fourth chamber from the side wall of the first filter element body.

[0010] In some embodiments, the first filtration device further includes a filter element handle, which is fixedly attached to the filter element fixing plate.

[0011] In some embodiments, the first filter element body is a multilayer stainless steel fiber.

[0012] In some embodiments, the separation device further includes an inner sealing plate located at the lower end of the first cylinder, and the inner sealing plate is provided with a plurality of first through holes.

[0013] In some embodiments, the separation device further includes a first support plate and a second support plate; the first support plate and the second support plate are respectively located at the upper and lower ends of the first cylinder, for fixing the first cylinder to the inside of the shell.

[0014] In some embodiments, the first support plate and the second support plate have an arc-shaped structure.

[0015] In some embodiments, the first inlet is surrounded by a first air intake pipe, which extends along the tangential direction of the housing in the second direction.

[0016] In some embodiments, the housing includes a second cylindrical body, the first outlet is surrounded by a first vent pipe, and the first vent pipe is connected to a tangential opening at the lower part of the second cylindrical body along the second direction.

[0017] In some embodiments, the housing further includes a second end cap, a level gauge connector, and a drain device, wherein the level gauge connector is located on the second cylinder and the second end cap, and the drain device is located at the bottom of the second end cap.

[0018] In some embodiments, the draining device includes a drain trough, a drain pipe, and a drain plug.

[0019] In some embodiments, the second filter device further includes an air inlet, a safety valve inlet, a pressure detection inlet, and a raised flange.

[0020] Beneficial Effects: This application provides a gas-liquid separation device for oil and gas recovery at a wharf. The gas-liquid separation device includes a shell with a first inlet for gas introduction; a separation device located inside the shell, comprising a first cylinder forming a first chamber with the shell, spiral blades extending from the bottom to the top of the first cylinder on its outer wall; a first outlet on the first cylinder; and a first filter located inside the separation device, having a second chamber inside and a fourth chamber between the filter and the first cylinder. The gas-liquid separation device has a first direction and a second direction, intersecting the second direction. The gas-liquid separation device has a first central axis along the first direction, and the shell, separation device, and first filter are coaxially arranged along the first central axis. The gas-liquid separation device of this application is suitable for oil and gas transmission systems between ships and shore-based facilities to ensure the safety and stability of oil and gas transmission. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the gas-liquid separation device for wharf oil and gas recovery in the embodiments of this application;

[0022] Figure 2 This is a schematic diagram of the gas-liquid separation device for wharf oil and gas recovery in the embodiments of this application;

[0023] Figure 3 This is a partial structural schematic diagram of the separation device in the embodiments of this application;

[0024] Figure 4 This is a partial structural schematic diagram of the separation device in the embodiments of this application;

[0025] Figure 5 This is a schematic diagram of the shell structure in an embodiment of this application;

[0026] Figure 6 This is a schematic diagram of the structure of the first filtering device in the embodiments of this application;

[0027] Figure 7 This is a schematic diagram of the gas-liquid separation device for wharf oil and gas recovery in the embodiments of this application;

[0028] Figure 8 This is a perspective view of a gas-liquid separation device for wharf oil and gas recovery in an embodiment of this application;

[0029] Figure 9 This is a schematic diagram of the gas-liquid separation device for wharf oil and gas recovery in the embodiments of this application;

[0030] Figure 10 This is a top view of a gas-liquid separation device for wharf oil and gas recovery in an embodiment of this application;

[0031] Figure 11 This is a schematic diagram of the gas flow direction for oil and gas separation in the gas-liquid separation device used for oil and gas recovery at the dock in the embodiments of this application;

[0032] Figure label:

[0033] Shell-10, First Chamber-110, First Inlet-101, First Air Inlet Pipe-102, Air Inlet Pressure Measuring Port-1021, Second Cylinder-103, First Air Outlet Pipe-104, Air Outlet Pressure Measuring Port-1041, Second End Cap-105, Level Gauge Connector-106, Level Gauge Upper Connector-1061, Level Gauge Lower Connector-1062, Drainage Device-107, Drainage Tank-1071, Drainage Pipe-1072, Drainage Plug-1073, Second Filter Layer-1074, Concave Flange-108; Separation Device-20, First Cylinder-201, Spiral Blade-202, First Outlet-203 Inner sealing plate-204, first through hole-205, first support plate-206, second support plate-207, first fixing plate-208; first filter device-30, second chamber-310, fourth chamber-320, filter element fixing plate-301, first filter element body-302, filter element lower sealing plate-303, filter element handle-304; second filter device-40, third chamber-410, first end cap-401, first filter layer-402, air inlet-403, safety valve port-404, pressure detection port-405, raised flange-406, bolt-407; insulation layer-50; bracket-60. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0035] In the description of this application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or connections that allow for mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the first direction described in the embodiments of this application is the direction extending along the X-axis, and the second direction is the direction extending along the Y-axis. The first and second directions intersect each other, preferably perpendicular to each other. The perpendicularity described in this application is not absolute perpendicularity but can be close to perpendicularity; the parallelism described in this application is not absolute parallelism but can be close to parallelism. The first direction X described in this application can also be a bottom-to-top direction. The second direction Y in this application can also be a left-to-right direction.

[0037] Example: The gas-liquid separation device for wharf oil and gas recovery in this application example is particularly suitable for processing oil and gas mixtures (gas to be processed) containing solid particles. The gas-liquid separation device of this application solves the problem that existing devices are prone to clogging when processing this type of gas, which affects the separation effect and the long-term stable operation of the equipment.

[0038] like Figures 1-10As shown, the gas-liquid separation device includes a housing 10, on which a first inlet 101 for gas introduction is provided. The main structure of the housing 10 is a second cylinder 103, and a second filter device 40 is located above the second cylinder 103. The main support structure of the second filter device 40 is a first end cap 401. In some specific embodiments, the second cylinder 103 and the first end cap 401 are made of materials conforming to GB 150, using corrosion-resistant stainless steel to ensure the pressure resistance and safety of the equipment.

[0039] In this embodiment, the first air inlet pipe 102 forms the first inlet 101. In some embodiments, the first air inlet pipe 102 extends along the tangential direction of the second cylinder 103 in the second direction Y, and the gas to be processed is sent into the interior of the housing 10 from the first inlet 101.

[0040] In some embodiments, the second cylinder 103 is further provided with a first exhaust pipe 104, which is connected to the lower end of the first cylinder 201 in the separation device 20 and is used to discharge gas sent from the separation device 20. In some embodiments, the first intake pipe 102 and the first exhaust pipe 104 are at the same fixed height.

[0041] In some embodiments, an inlet pressure measuring port 1021 is provided on the first inlet pipe 102, and an outlet pressure measuring port 1041 is provided on the first outlet pipe 104. Differential pressure transmitters are installed on the inlet pressure measuring port 1021 and the outlet pressure measuring port 1041 to monitor the differential pressure between the inlet and outlet ends of the gas-liquid separator. When the differential pressure reaches a set value (5 kPa, adjustable), an alarm is triggered to remind that cleaning or replacement is required.

[0042] In some embodiments, the lower end of the second cylinder 103 in this application is provided with a level gauge connector 106 and a drain device 107. Furthermore, the lower end of the second cylinder 103 in this application is provided with a second end cap 105, such as... Figure 5As shown, 106 is located on the second cylinder 103 and the second end cap 105; the level gauge connector 106 includes an upper level gauge connector 1061 and a lower level gauge connector 1062. The upper level gauge connector 1061 is located on the second cylinder 103, and the lower level gauge connector 1062 is located on the second end cap 105. Level indicators are installed on the upper level gauge connector 1061 and the lower level gauge connector 1062. In some specific embodiments, the level gauge connector 106 uses a magnetic float level gauge, whose measurement range covers the entire liquid level height within the housing, ensuring accurate indication of the liquid level. It is used to monitor the liquid level of the gas-liquid separator. When the liquid level reaches the high liquid level set value (adjustable), automatic drainage is performed. When the liquid level reaches the high liquid level set value (adjustable), an alarm is triggered to remind manual intervention for drainage. In some specific embodiments, the liquid level gauge of this application is also equipped with a high liquid level and a very high liquid level alarm. The high liquid level and the very high liquid level alarm are respectively set at different heights of the liquid level gauge to monitor the liquid level in the housing in real time, and issue an alarm signal when the liquid level reaches the set value, providing a signal to the ship-shore safety device control system to ensure the safe operation of the equipment.

[0043] In some embodiments, the draining device 107 is located at the bottom of the second end cap 105, and the waste separated by the gas-liquid separator is discharged through the draining device 107. In some embodiments, the draining device 107 includes three parts: a drain tank 1071, a drain pipe 1072, and a drain plug 1073. Figure 5 As shown, a second filter layer 1074 is provided inside the sewage tank 1071 as a tertiary filter layer. The second filter layer 1074 is made of corrosion-resistant stainless steel multilayer wire mesh to intercept and separate fine particulate solids. The fine particulate solids are buffered in the sewage tank 1071 and periodically discharged from the sewage plug 1073. In some embodiments, the outlet of the drain pipe 1072 is equipped with an automatic valve to control the opening and closing of the drain port. When it is necessary to discharge the separated liquid, the valve is automatically opened to perform the drainage operation; when the drainage is completed, the valve is automatically closed to ensure the airtightness of the equipment. In some embodiments, when it is necessary to discharge the separated solid particles, the sewage plug 1073 is manually opened to perform the drainage operation; when the drainage is completed, the valve is closed to ensure the airtightness of the equipment.

[0044] In some embodiments, a support 60 is further provided at the bottom of the second cylinder. The support 60 is welded and fixed to the lower part of the second cylinder 103 and avoids the weld between the second cylinder 103 and the inlet pipe and the outlet pipe. In some specific embodiments, three container legs are used as the support 60, and the three container legs are evenly distributed at a 120° angle. The first outlet pipe 104 is located exactly in the middle of two of the container legs. Figure 7 As shown, the first air inlet pipe 102 is butt-welded along the tangential direction of the cylinder wall of the second cylinder 103. The dock oil and gas entering from the first air inlet pipe 102 rotates upward along the tangential direction of the cylinder wall and enters the interior of the second cylinder 103.

[0045] like Figure 3 and Figure 4 As shown, this application provides a separation device 20 inside the second cylinder 103. The separation device 20 includes a first cylinder 201, which forms a first chamber 110 with the shell 10. In some embodiments, the first cylinder 201 and the second cylinder 103 are coaxially arranged (first central axis O1). Continuous spiral blades 202 are welded to the outer wall of the first cylinder 201. The spiral blades 202 have a spiral structure and rotate counterclockwise. The starting point of the spiral blades 202 is at the center of the left side of the first vent pipe 104. The center of the first vent pipe 104 mentioned in this application is the position of the first vent pipe 104 at the second central axis O2. The starting point of the spiral blades 202 is located to the left of the center position of the first vent pipe 104. The dock oil and gas to be treated enters tangentially along the inner wall of the second cylinder 203 and spirals upward along the spiral blades 202. Under the multiple effects of inertia, centrifugal force and gravity, the oil and gas mixture and water mixture are efficiently separated.

[0046] In some embodiments, the first cylinder 201 has a first end 210 and a second end 220, and the pitch of the helical blades 202 gradually increases along the direction from the first end 210 to the second end 220. In other embodiments, the helical blades 202 can be adjusted according to actual needs to adapt to oil-gas mixtures with different flow rates and pressure drop requirements. In some specific embodiments, the pitch gradually increases from 110 mm at the bottom to 200 mm at the top. This application provides helical blades 202 within the first chamber 110 to guide the flow direction of the oil-gas mixture within the chamber, thereby improving separation efficiency.

[0047] The separation device 20 of this application optimizes the separation effect of oil-gas and water mixture by setting the position of the spiral blade 202, the structure of the spiral blade 202 and the structure of the first air inlet pipe 102.

[0048] In some embodiments, a first outlet 203 is provided on the first cylinder 201, and the first outlet 203 is connected to the first vent pipe 104. The lower end of the first cylinder 201 is sealed by an inner sealing plate 204, which is provided with a plurality of first through holes 205. In some specific embodiments, the inner sealing plate 204 of the first cylinder 201 has four ￠8 small holes to facilitate the separation of the accumulation of tiny droplets inside the filter, protect the rear flame arrester from clogging, and improve the stability and safety of the overall system.

[0049] In some embodiments, the first cylinder 201 is fixed inside the second cylinder 103 by a first support plate 206 and a second support plate 207, and a first fixing plate 208 is provided at the top of the first cylinder 201, which is then fixed to the second filter device at its upper end by the first fixing plate 208. In some embodiments, the first support plate 206 and the second support plate 207 are welded to the inner wall of the second cylinder 103. In some embodiments, the first support plate 206 and the second support plate 207 of this application have an arc-shaped structure.

[0050] The separation device 20 of this application employs a combination of cyclone separation and gravity separation to improve separation efficiency. Cyclone baffles are placed on the outer wall of the inner tube. The fluid enters the inner wall of the cylinder tangentially, and the centrifugal force generated by the rotation throws the liquid towards the cylinder wall and the outer wall of the tube, achieving initial separation. Utilizing the centrifugal force of the cyclone rotation, solid particles or water in the liquid generate different centrifugal forces during rotation due to density differences, thereby achieving gas-liquid separation. In cyclone separation, the liquid mixture enters from the inlet and rotates at high speed. Different components have different centrifugal forces; heavier components will swirl towards the wall and fall to the bottom of the cylinder due to gravity, while lighter components will move towards the central axis of the spiral blades and flow out from the top. The support plate of the first cylinder 201 is designed with a downward arc to facilitate the sliding of the flowing liquid.

[0051] In some embodiments, a first filter device 30 is provided inside the first cylindrical body 201, a second chamber 310 is formed inside the first filter device, and a fourth chamber 320 is provided between the first filter device 30 and the first cylindrical body 201. Figure 6 As shown, the first filtration device 30 of this application includes a filter element fixing plate 301, a first filter element body 302, a filter element lower sealing plate 303, and a filter element handle 304. In some embodiments, the first filter element body 302 and the filter element fixing plate 301 form a filtration structure with an upper opening for air intake. Gas entering the interior of the first filter element body 302 enters the fourth chamber 320 from the side wall of the first filter element body 302. The filter element lower sealing plate 303 has air outlets around its sides. A movable filter element handle 304 is welded at the inlet of the first filter element body 302 to facilitate the pulling out and storage of the first filtration device 30.

[0052] In some embodiments, the first filter element body 302 adopts a multi-layer stainless steel fiber design for secondary filtration of oil and gas at the dock. This design captures minute particles and droplets. The density of the stainless steel fibers is selected to match the maximum safe test gap (MESG) value of the flame arrester, ensuring that minute particles do not clog the flame arrester's gap. This protects the normal operation of the downstream detonation-resistant flame arrester. The filter structure is designed for easy cleaning and maintenance, ensuring long-term stable operation of the equipment.

[0053] In some embodiments, the gas-liquid separation device further includes a second filter device 40, which is located above the first filter device 30. The second filter device 40 includes a first end cap 401 and a first filter layer 402, which together form a third chamber 410. The third chamber 410 communicates with the first chamber 110 and the second chamber 310. In some embodiments, the first filter layer 402 is a corrosion-resistant stainless steel multilayer wire mesh, which performs primary filtration of oil and gas at the dock, filtering out fine particulate matter and free water vapor.

[0054] In some specific embodiments, this application further optimizes the structure of the filter layer and filter element through testing the oil-gas separation effect. The first filter layer 402 and the second filter layer 1074 are made of 3mm fine-pore metal wire mesh with a density of 30 mesh. The main body of the first filter element 302 is woven from 0.5mm metal fibers to form a detachable filter screen with a density of 200 mesh. Through the optimized structure of the separation device 20, the first filter device 30 and the second filter device 40, this application improves the separation and filtration effect of the gas-liquid separation device in this embodiment on oil-gas mixtures containing solid particles.

[0055] In some embodiments, the second filtration device 40 of this application further includes an air inlet 403, a safety valve port 404, a pressure detection port 405, and a raised face flange 406. The air inlet 403 is equipped with an air inlet valve, the safety valve port 404 is equipped with a safety valve, and the pressure detection port 405 is equipped with a pressure transmitter for monitoring the pressure within the gas-liquid separator.

[0056] This application configures pressure detectors (i.e., pressure sensors) at both ends of the equipment to monitor the differential pressure across the gas-liquid separator and provides signal output functionality for real-time monitoring of the equipment's operating status. In some specific embodiments, the pressure sensors used in this application are high-precision pressure transmitters with signal output capabilities, which can convert the monitored pressure and differential pressure signals into electrical signals and output them to the control system.

[0057] The gas-liquid separation device of this application has a safety valve and a vent on the housing 10 to protect the equipment in case of overpressure or emergency venting. The set pressure of the safety valve can be adjusted according to actual needs to ensure that the equipment will not have an accident due to overpressure during normal operation.

[0058] In some specific embodiments, a low-pressure threshold, a first high-pressure threshold, and a second high-pressure threshold are set. For example, the low-pressure threshold is -3.5 kPa, the first high-pressure threshold is 14 kPa, and the second high-pressure threshold is 50 kPa. The low-pressure threshold, the first high-pressure threshold, and the second high-pressure threshold in this application can be adjusted according to actual needs. When the pressure measured by the pressure transmitter at the pressure detection port 405 is lower than the low-pressure threshold setting value, i.e., <-3.5 kPa vacuum value, the air supply valve is opened. When the pressure measured by the pressure transmitter at the pressure detection port 405 is higher than the first high-pressure threshold, i.e., >14 kPa high pressure, an alarm is triggered, and the air intake at the air inlet is reduced or closed in time. When the pressure measured by the pressure transmitter at the pressure detection port 405 rises to the second high-pressure threshold of 50 kPa, an alarm is triggered, and the safety valve opens to avoid safety hazards such as equipment overpressure or leakage.

[0059] like Figure 2 As shown, the outer periphery of the shell 10 of this application is provided with a thermal insulation layer 50, which is adhered and fixed to the outer wall of the shell 10 cylinder. The thermal insulation layer and safety valve of this application further improve the safety and stability of the equipment. In some specific embodiments, the thermal insulation layer can be made of thermal insulation materials such as rock wool and glass wool.

[0060] In some embodiments, the housing 10 and the second filter device 40 are fixed and disassembled by a sealing fastener 407. In this application, a concave flange 108 and a convex flange 406 are welded and fixed to the upper end of the second cylinder 103 for fixing the first end cap 403 to the second cylinder 103.

[0061] The gas-liquid separation device of this application can not only effectively separate gas and liquid in oil-gas mixtures, but also efficiently filter solid particulate matter. At the same time, it has intelligent monitoring and management functions to ensure the safe and efficient operation of the equipment.

[0062] This application further improves the separation efficiency of oil-gas mixtures by designing different separation chambers, thus meeting the application scenarios with different flow rate and pressure drop requirements.

[0063] Application Example: A gas-liquid separator based on this application is used in the oil and gas transmission system of a ship terminal. The main material is 304 stainless steel. The diameter of the first inlet and outlet pipes is DN150. The second cylinder is DN400X4 with a height of 1000mm. The design pressure is 1.0MPa, the working pressure is 15kPa, and the maximum processing flow rate is 500m³ / h. The equipment has a three-stage filtration structure. The first filter layer 402 and the second filter layer 1074 use 3mm fine-mesh metal wire mesh with a density of 30 mesh. The first filter element body 302 is woven from 0.5mm metal fibers with a filter mesh density of 200 mesh. The spiral blades 202 are 30mm wide, 3mm thick, and have 5.5 turns. The pitch gradually increases from 110mm at the bottom to 200mm at the top. In actual operation, the gas-liquid separator exhibits good separation performance; the outlet gas is free of minute impurities, and the flame arrester inlet is clean and intact, meeting design requirements. Meanwhile, the liquid level monitoring system and the pressure monitoring and control system operate stably, accurately monitoring changes in liquid level and pressure, and issuing alarm signals in a timely manner, effectively ensuring the safe operation of the terminal's oil and gas transmission system.

[0064] The gas-liquid separation device of this application solves the problems of low gas-liquid separation efficiency, high maintenance costs, and insufficient automated monitoring in existing technologies, thereby improving the safety and stability of port oil and gas transmission systems. This device can not only effectively separate gas and liquid in oil-gas mixtures but also efficiently filter solid particles, while possessing intelligent monitoring and management functions. Through reasonable flow channel design, optimized separation chamber, and the configuration of safety protection devices, the gas-liquid separation device of this application ensures stable operation and efficient separation. This device has been successfully applied in actual production, achieving significant economic and social benefits. The device complies with GB 150 standards and has functions such as efficient solid particle filtration, intelligent liquid level monitoring, pressure monitoring, and signal output, enabling it to adapt to the safe handling needs of port oil and gas under different operating conditions.

[0065] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0066] The above provides a detailed description of a gas-liquid separation device for wharf oil and gas recovery provided in the embodiments of this application. Specific examples have been used to illustrate the principle and implementation of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this application. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A gas-liquid separation device for oil and gas recovery at a wharf, characterized in that, The gas-liquid separation device includes a housing (10) and a first inlet (101) for gas delivery is provided on the housing (10). A separation device (20) is located inside the housing (10). The separation device (20) includes a first cylinder (201), which forms a first chamber (110) with the housing (10). A spiral blade (202) is provided on the outer wall of the first cylinder (201), and the spiral blade (202) extends along the direction from the bottom end to the top end of the first cylinder (201). A first outlet (203) is provided on the first cylinder (201). The first filter device (30) is located inside the separation device (20), the first filter device (30) has a second chamber (310), and a fourth chamber (320) is provided between the first filter device (30) and the first cylinder (201). The gas-liquid separation device has a first direction (X) and a second direction (Y), the first direction (X) intersects the second direction (Y), the gas-liquid separation device has a first central axis (O1) along the first direction (X), and the housing (10), the separation device (20) and the first filter device (30) are coaxially arranged along the first central axis (O1).

2. The gas-liquid separation device for oil and gas recovery at a wharf according to claim 1, characterized in that, The gas-liquid separation device further includes a second filter device (40), which is located above the first filter device (30). The second filter device (40) includes a first end cap (401) and a first filter layer (402). The first end cap (401) and the first filter layer (402) form a third chamber (410). The third chamber (410) communicates with the first chamber (110) and the third chamber (410) communicates with the second chamber (310).

3. The gas-liquid separation device for wharf oil and gas recovery according to claim 2, characterized in that, The first filter layer (402) is a corrosion-resistant stainless steel multilayer wire mesh.

4. The gas-liquid separation device for oil and gas recovery at a wharf according to claim 1, characterized in that, The spiral blade (202) rotates counterclockwise, and the bottom starting point of the spiral blade (202) is located at the center of the left side of the first outlet (203).

5. The gas-liquid separation device for wharf oil and gas recovery according to claim 4, characterized in that, The first cylinder (201) has a first end (210) and a second end (220), and the pitch of the helical blade (202) gradually increases along the direction from the first end (210) to the second end (220).

6. The gas-liquid separation device for oil and gas recovery at a wharf according to claim 1, characterized in that, The first filter device (30) includes a filter element fixing plate (301), a first filter element body (302) fixed to the filter element fixing plate (301), and a filter element lower sealing plate (303) disposed below the first filter element body (302). The first filter element body (302) and the filter element fixing plate (301) form an air inlet with an upper opening. The gas entering the interior of the first filter element body (302) enters the fourth chamber (320) from the side wall of the first filter element body (302). And / or, The first filtration device (30) further includes a filter element handle (304), which is fixed to the filter element fixing plate (301).

7. The gas-liquid separation device for wharf oil and gas recovery according to claim 6, characterized in that, The first filter element body (302) is made of multi-layer stainless steel fiber.

8. The gas-liquid separation device for wharf oil and gas recovery according to claim 2, characterized in that, The separation device (20) further includes an inner sealing plate (204), which is located at the lower end of the first cylinder (201) and has a plurality of first through holes (205); and / or, The separation device (20) further includes a first support plate (206) and a second support plate (207); the first support plate (206) and the second support plate (207) are respectively located at the upper and lower ends of the first cylinder (201) for fixing the first cylinder (201) to the inside of the shell (10); and / or, The first support plate (206) and the second support plate (207) have an arc-shaped structure.

9. The gas-liquid separation device for oil and gas recovery at a wharf according to claim 1, characterized in that, The first inlet (101) is surrounded by a first air intake pipe (102), which extends along the tangential direction of the second direction (Y) with the housing (10); and / or, The housing (10) includes a second cylindrical body (103), and the first outlet (203) is surrounded by a first vent pipe (104), which is connected to a tangential opening at the lower part of the second cylindrical body (103) along the second direction (Y); and / or, The housing (10) further includes a second end cap (105), a level gauge connector (106), and a drain device (107), the level gauge connector (106) being located on the second cylinder (103) and the second end cap (105), and the drain device (107) being located at the bottom of the second end cap (105); and / or, The draining device (107) includes a drain trough (1071), a drain pipe (1072), and a drain plug (1073).

10. The gas-liquid separation device for wharf oil and gas recovery according to claim 2, characterized in that, The second filter device (40) also includes an air inlet (403), a safety valve inlet (404), a pressure detection inlet (405), and a raised flange (406).

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