Efficient oil-gas-liquid separator for natural gas

Abstract

The utility model provides an efficient oil-gas-liquid separator for natural gas. The separating mechanism comprises an upper sealing disc, a lower sealing disc and four sealing plates, wherein the upper sealing disc and the lower sealing disc are arranged in the separating groove in parallel and arranged up and down, and the four sealing plates are arranged between the lower sealing disc and the upper sealing disc in a circumferential array mode. The four filter plates are arranged between the lower sealing disc and the upper sealing disc in a circumferential array mode and arranged between every two adjacent sealing plates in a one-to-one correspondence mode, and the rotating assembly is arranged on the upper sealing disc and controls the four sealing plates to rotate around the axis direction of the upper sealing disc. A fixing column is fixedly arranged between the upper sealing disc and the lower sealing disc in the axis direction, gas collecting plates are arranged on the end faces of the same ends of the four filtering plates, and the gas collecting plates are connected with a gas outlet pipe through connecting assemblies; the oil-gas separation device can be used for conveniently carrying out oil-gas separation on natural gas, and the separation purity and efficiency of the natural gas are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas separation, in particular to a high-efficiency natural gas oil-gas-liquid separator. Background Art

[0002] Oil-gas separation devices are widely used in the separation and recovery of natural gas to separate and purify oil and gas containing crude oil to obtain natural gas and crude oil with higher purity. The prior art of oil-gas separation generally involves passing oil and gas into a separation tank and separating natural gas and crude oil through an oil filter in the separation tank. However, the existing separation tanks are mostly single-chamber structures, and the residence time of oil and gas in the separation tank is short, which easily causes the problem of low purity of natural gas separation. Utility Model Content

[0003] In view of the above technical problems, the utility model provides a high-efficiency natural gas oil-gas-liquid separator, which can conveniently separate oil and gas from natural gas, thereby improving the separation purity and efficiency of natural gas.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency natural gas oil-gas-liquid separator, comprising a separation tank with an air inlet pipe and an oil discharge pipe respectively arranged at the top and bottom ends, a separation mechanism with a separation groove arranged inside the separation tank, and an air outlet pipe arranged on the side of the separation tank and connected to the separation mechanism, the separation mechanism comprising two upper sealing plates and lower sealing plates arranged parallel to each other in the separation groove and arranged up and down, four sealing plates arranged in a circular array between the lower sealing plate and the upper sealing plate, four filter plates arranged in a circular array between the lower sealing plate and the upper sealing plate and respectively arranged one by one between two adjacent sealing plates, and a rotating assembly arranged on the upper sealing plate and controlling the four sealing plates to rotate around the axial direction of the upper sealing plate, a fixed column is fixedly arranged between the upper sealing plate and the lower sealing plate along the axial direction, a gas collecting plate is arranged on the same end face of the four filter plates, and the gas collecting plate is connected to the air outlet pipe through a connecting assembly.

[0005] Preferably, the end faces of the four sealing plates and the four filter plates all pass through the axial direction of the fixed column, and the side faces of the four sealing plates are fixedly connected to the side faces of the fixed column; the side faces of the four sealing plates are fixedly connected by the outer ring surface of a rotating ring rotatably sleeved on the side faces of the fixed column.

[0006] Preferably, the rotating assembly includes a rotating ring rotatably arranged in a rotating groove provided on the bottom end surface of the upper sealing disk, a rotating rod whose bottom end is rotatably arranged on the top side surfaces of the four sealing plates and whose top end is rotatably connected to the bottom end surface of the rotating ring, a driven gear ring arranged in the upper sealing disk and fixedly sleeved on the outer ring surface of the rotating ring, and a driving gear that passes through the upper sealing disk, meshes with the driven gear ring and is driven by a motor, and the driving gear rotates toward the end surface of the filter plate away from the gas collecting plate through the driving gear ring and the four sealing plates.

[0007] Preferably, the connecting assembly includes four connecting pipes which are respectively and one by one passed through the separation tank and fixedly arranged on the side of the gas collecting plate, and an gas collecting ring which is fixedly mounted on the body of the separation tank and whose inner ring surface is connected to the four connecting pipes, and an air outlet pipe is arranged on the outer ring surface of the gas collecting ring; an oil filter net is fixedly arranged on the filter groove opened on the end surface of the filter plate.

[0008] Preferably, the separation mechanism also includes an air intake assembly arranged on the top end surface of the upper sealing disk, and an oil outlet assembly arranged on the bottom end surface of the lower sealing disk, the air intake assembly includes an air intake block penetrating through the end surface of the upper sealing disk and opening an air intake hole between adjacent filter plates and sealing plates, a fixed block fixed above the air intake hole by a fixed rod, and a control member arranged between the fixed block and the air intake block and controlling the lifting movement of the air intake block, a plurality of connecting grooves are opened on the side of the air intake block in a circular array, and the depth of the connecting grooves accounts for three quarters of the height of the air intake block.

[0009] Preferably, the control component includes a telescopic rod that is inserted between the air intake block and the fixed block and whose two ends are respectively fixedly connected to the adjacent end surfaces of the air intake block and the fixed block, a limit spring that is movably mounted on the body of the telescopic rod and whose two ends are respectively fixedly connected to the adjacent end surfaces of the air intake block and the fixed block, and two electromagnets that are fixedly arranged on the adjacent end surfaces of the air intake block and the fixed block.

[0010] Preferably, the oil outlet assembly includes a plurality of control valves which are arranged on the bottom end surface of the lower sealing disk and are respectively located under each air intake block in a one-to-one correspondence.

[0011] The beneficial effects of the utility model are as follows: the natural gas is directly introduced into the separation tank through the air inlet pipe, and is introduced into the space between the sealing plate and the filter plate between the upper sealing plate and the lower sealing plate through the air inlet assembly, and the sealing plate is driven to move between the filter plates by the rotating assembly, so as to facilitate the natural gas to move onto the filter plate, so as to facilitate the oil and gas separation of the natural gas through the filter plate, and the natural gas passing through the filter plate enters the gas collecting plate, and the filtered natural gas is collected on the air outlet pipe through the connecting assembly, so as to facilitate the oil and gas separation of the natural gas, and the oil and gas separation of the natural gas can be conveniently performed, thereby improving the separation purity and efficiency of the natural gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 This is a simplified structural diagram of the high-efficiency natural gas oil-gas-liquid separator proposed by the utility model.

[0014] Figure 2It is a schematic diagram of the internal structure of the separation tank of the utility model.

[0015] Figure 3 It is a schematic diagram of the internal structure of the separation tank of the utility model when viewed from above.

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the air intake assembly of the utility model.

[0017] Figure 5 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0018] In the figure: 1. separation tank; 2. air inlet pipe; 3. oil drain pipe; 4. air collecting ring; 5. air outlet pipe; 6. separation groove; 7. lower sealing plate; 8. upper sealing plate; 9. fixing column; 10. sealing plate; 11. filter plate; 12. air collecting plate; 13. control valve; 14. air inlet hole; 15. air inlet block; 16. rotating groove; 17. rotating ring; 18. fixing block; 19. fixing rod; 20. telescopic rod; 21. limit spring; 22. connecting groove. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0020] See also Figure 1-5 , a high-efficiency natural gas oil-gas-liquid separator, comprising a separation tank 1 with an air inlet pipe 2 and an oil discharge pipe 3 at the top and bottom respectively, a separation mechanism arranged in the separation tank 1 with a separation groove 6, and an air outlet pipe 5 arranged on the side of the separation tank 1 and connected to the separation mechanism, the separation mechanism comprising two upper sealing discs 8 and lower sealing discs 7 arranged parallel to each other in the separation groove 6 and arranged up and down, four sealing plates 10 arranged in a circumferential array between the lower sealing disc 7 and the upper sealing disc 8, four filter plates 11 arranged in a circumferential array between the lower sealing disc 7 and the upper sealing disc 8 and respectively arranged one by one between two adjacent sealing plates 10, and a rotating assembly arranged on the upper sealing disc 8 and controlling the four sealing plates 10 to rotate around the axial direction of the upper sealing disc 8, a fixed column 9 is fixedly arranged between the upper sealing disc 8 and the lower sealing disc 7 along the axial direction, and a gas collecting plate 12 is arranged on the same end surface of the four filter plates 11, and the gas collecting plate 12 is connected to the air outlet pipe 5 through a connecting assembly.

[0021] like Figure 1-5As shown, the natural gas is directly introduced into the separation groove 6 opened in the separation tank 1 through the air inlet pipe 2, and is introduced into the filter plate 11 and the sealing plate 10 adjacent to each other between the upper sealing disk 8 and the lower sealing disk 7 through the air inlet assembly, and the sealing plate 10 is driven to move toward the filter plate 11 by the rotating assembly, so as to facilitate pushing the natural gas located in the middle to pass through the filter plate 11 for filtering and separating the oil and gas, thereby facilitating the acceleration of the oil and gas separation efficiency of the natural gas and improving the separation purity of the natural gas, and the natural gas passing through the filter plate 11 is introduced into the air outlet pipe 5 through the gas collecting plate 12 and the connecting assembly, so as to facilitate the oil and gas separation of the natural gas, and the oil and gas separation of the natural gas can be conveniently performed, thereby improving the separation purity and efficiency of the natural gas.

[0022] like Figure 2-3 As shown, the end faces of the four sealing plates 10 and the four filter plates 11 all pass through the axial direction of the fixed column 9, and the side faces of the four sealing plates 10 are fixedly connected to the side faces of the fixed column 9; the side faces of the four sealing plates 10 are fixedly connected by the outer ring surface of a rotating ring rotatably sleeved on the side face of the fixed column 9, wherein the rotating ring is connected to the side faces of the four sealing plates 10, thereby facilitating the stable rotation of the sealing plates 10 when the rotating assembly drives the four sealing plates 10 to rotate, thereby facilitating stable oil and gas separation of natural gas.

[0023] like Figure 3-4 As shown, the rotating assembly includes a rotating ring 17 rotatably arranged in a rotating groove 16 provided on the bottom end face of the upper sealing disk 8, a rotating rod whose bottom end is rotatably arranged on the top side surface of the four sealing plates 10 and the top end is rotatably connected to the bottom end face of the rotating ring 17, a driven gear ring arranged in the upper sealing disk 8 and fixedly sleeved on the outer ring surface of the rotating ring 17, and a driving gear that is penetrated in the upper sealing disk 8 and meshed with the driven gear ring and driven by a motor, and the driving gear is rotated toward the end face of the filter plate 11 away from the gas collecting plate 12 through the driving gear ring and the four sealing plates 10, wherein when the sealing plate 10 is controlled to rotate in the direction of the filter plate 11, it is convenient to separate oil and gas from natural gas, and the driving gear is driven by the motor to rotate, so that it is convenient to drive the driven gear ring to rotate through the driving gear, that is, it is convenient to drive the four sealing plates 10 to rotate stably in the direction of the filter plate 11.

[0024] like Figure 2-3As shown, the connecting assembly includes four connecting pipes which are respectively and one by one passed through the separation tank 1 and fixedly arranged on the side of the gas collecting plate 12, and a gas collecting ring 4 which is fixedly sleeved on the body of the separation tank 1 and the inner ring surface is connected to the four connecting pipes, and an outlet pipe 5 is arranged on the outer ring surface of the gas collecting ring 4; an oil filter net is fixedly arranged on the filter groove opened on the end surface of the filter plate 11, wherein when the sealing plate 10 is rotated toward the filter plate 11, it is convenient to drive the natural gas to pass through the filter plate 11, so as to facilitate the oil-liquid separation of the natural gas, and the filtered natural gas is moved to the outlet pipe 5 through the gas collecting plate 12, the connecting pipe and the gas collecting ring 4, so as to facilitate the discharge of the separation tank 1 through the outlet pipe 5, that is, the oil and gas separation is carried out by pressurized filtration of the natural gas, thereby accelerating the oil and gas separation efficiency and purity of the natural gas.

[0025] The separation mechanism also includes an air intake assembly arranged on the top end face of the upper sealing disk 8, and an oil outlet assembly arranged on the bottom end face of the lower sealing disk 7. The air intake assembly includes an air intake block 15 that penetrates the end face of the upper sealing disk 8 and is located between the adjacent filter plates 11 and the sealing plate 10 to open an air intake hole 14, a fixed block 18 fixed above the air intake hole 14 by a fixed rod 19, and a control member that is arranged between the fixed block 18 and the air intake block 15 and controls the air intake block 15 to move up and down. A plurality of connecting grooves 22 are opened on the side of the air intake block 15 in a circular array, and the depth of the connecting grooves 22 accounts for three quarters of the height of the air intake block 15.

[0026] The control component includes a telescopic rod 20 which is inserted between the air intake block 15 and the fixed block 18 and whose two ends are respectively fixedly connected to the adjacent end surfaces of the air intake block 15 and the fixed block 18, a limit spring 21 which is movably sleeved on the body of the telescopic rod 20 and whose two ends are respectively fixedly connected to the adjacent end surfaces of the air intake block 15 and the fixed block 18, and two electromagnets which are fixedly arranged on the adjacent end surfaces of the air intake block 15 and the fixed block 18.

[0027] like Figure 2-5 As shown, when natural gas is separated from oil and gas, the adjacent ends of the two electromagnets arranged on the adjacent end faces of the air intake block 15 and the fixed block 18 have the same magnetic poles, so as to facilitate the air intake block 15 to move downward in the air intake hole 14, and control the side opening of the connecting groove 22 opened on the side of the air intake block 15 to move below the bottom end face of the upper sealing disk 8, so as to facilitate the natural gas to move between the upper sealing disk 8 and the lower sealing disk 7 and to the space between the sealing plate 10 and the filter plate 11, and then the four sealing plates 10 are driven by the motor to move in the direction of the filter plate 11, so as to facilitate the control of pressurized filtration of natural gas, improve the filtration efficiency and filtration purity of natural gas, and can conveniently separate oil and gas from natural gas, thereby improving the separation purity and efficiency of natural gas.

[0028] The oil outlet assembly includes a plurality of control valves 13 disposed on the bottom end surface of the lower sealing disk 7 and located below each air inlet block 15 in a one-to-one correspondence.

[0029] As shown in the figure, when too much oil is separated at the position where the lower sealing disc 7 is located between the sealing plate 10 and the filter plate 11, the oil is directly discharged into the separation tank 6 through the control valve 13, and the oil is easily discharged through the oil drain pipe 3.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-efficiency natural gas oil-gas-liquid separator, comprising a separation tank (1) with an air inlet pipe (2) and an oil discharge pipe (3) respectively arranged at the top and bottom ends, a separation mechanism arranged inside the separation tank (1) and having a separation groove (6), and an air outlet pipe (5) arranged on the side of the separation tank (1) and connected to the separation mechanism, characterized in that: The separation mechanism comprises two upper sealing discs (8) and lower sealing discs (7) which are arranged in parallel with each other in the separation groove (6) and arranged up and down, four sealing plates (10) which are arranged in a circumferential array between the lower sealing disc (7) and the upper sealing disc (8), four filter plates (11) which are arranged in a circumferential array between the lower sealing disc (7) and the upper sealing disc (8) and are arranged one-to-one between two adjacent sealing plates (10), and a rotating assembly which is arranged on the upper sealing disc (8) and controls the four sealing plates (10) to rotate around the axial direction of the upper sealing disc (8), a fixing column (9) is fixedly arranged between the upper sealing disc (8) and the lower sealing disc (7) along the axial direction, and a gas collecting plate (12) is arranged on the same end surface of the four filter plates (11), and the gas collecting plate (12) is connected to the gas outlet pipe (5) through a connecting assembly.

2. A high-efficiency natural gas oil-gas-liquid separator according to claim 1, characterized in that: The end faces of the four sealing plates (10) and the four filter plates (11) all pass through the axial direction of the fixed column (9), and the side faces of the four sealing plates (10) are fixedly connected to the side faces of the fixed column (9); the side faces of the four sealing plates (10) are fixedly connected via the outer ring surface of a rotating ring rotatably sleeved on the side faces of the fixed column (9).

3. The high-efficiency natural gas oil-gas-liquid separator according to claim 2 is characterized in that: The rotating assembly comprises a rotating ring (17) rotatably arranged in a rotating groove (16) provided on the bottom end surface of the upper sealing disk (8), a rotating rod whose bottom end is rotatably arranged on the top side surface of the four sealing plates (10) and whose top end is rotatably connected to the bottom end surface of the rotating ring (17), a driven gear ring arranged in the upper sealing disk (8) and fixedly sleeved on the outer ring surface of the rotating ring (17), and a driving gear penetrating the upper sealing disk (8) and meshing with the driven gear ring and driven by a motor, wherein the driving gear rotates toward the end surface of one end of the filter plate (11) away from the gas collecting plate (12) through the driving gear ring and the four sealing plates (10).

4. The high-efficiency natural gas oil-gas-liquid separator according to claim 3 is characterized in that: The connection assembly comprises four connection pipes which are respectively and one by one inserted into the separation tank (1) and fixedly arranged on the side of the gas collecting plate (12), and a gas collecting ring (4) which is fixedly sleeved on the body of the separation tank (1) and whose inner annular surface is connected to the four connection pipes, and an air outlet pipe (5) is arranged on the outer annular surface of the gas collecting ring (4); and an oil filter net is fixedly arranged on the filter groove provided on the end surface of the filter plate (11).

5. A high-efficiency natural gas oil-gas-liquid separator according to claim 4, characterized in that: The separation mechanism also includes an air intake assembly arranged on the top end surface of the upper sealing disk (8), and an oil outlet assembly arranged on the bottom end surface of the lower sealing disk (7). The air intake assembly includes an air intake block (15) penetrating the end surface of the upper sealing disk (8) and opening an air intake hole (14) between adjacent filter plates (11) and sealing plates (10), a fixed block (18) fixed above the air intake hole (14) by a fixed rod (19), and a control member arranged between the fixed block (18) and the air intake block (15) and controlling the air intake block (15) to move up and down. The air intake block (15) has a plurality of connection grooves (22) arranged in a circular array on the side surface, and the depth of the connection grooves (22) accounts for three quarters of the height of the air intake block (15).

6. A high-efficiency natural gas oil-gas-liquid separator according to claim 5, characterized in that: The control component comprises a telescopic rod (20) which is inserted between the air intake block (15) and the fixed block (18) and whose two ends are respectively fixedly connected to the adjacent end surfaces of the air intake block (15) and the fixed block (18); a limit spring (21) which is movably sleeved on the rod body of the telescopic rod (20) and whose two ends are respectively fixedly connected to the adjacent end surfaces of the air intake block (15) and the fixed block (18); and two electromagnets which are fixedly arranged on the adjacent end surfaces of the air intake block (15) and the fixed block (18).

7. A high-efficiency natural gas oil-gas-liquid separator according to claim 6, characterized in that: The oil outlet assembly comprises a plurality of control valves (13) which are arranged on the bottom end surface of the lower sealing plate (7) and are respectively located below each air intake block (15) in a one-to-one correspondence.

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