Oil field associated gas separation device

Abstract

The utility model discloses an oil field associated gas separation device, which relates to the field of oil fields, and comprises a separator tank body, a liquid outlet pipe is arranged at the bottom of the separator tank body, a filter assembly is arranged outside the separator tank body, an exhaust assembly is arranged at the top of the separator tank body, the filter assembly comprises a liquid inlet pipe, and the liquid inlet pipe is connected with the exhaust assembly. The liquid inlet pipe is installed on the periphery of the separator tank in a penetrating mode, a filter pipe is installed in the liquid inlet pipe in a penetrating mode, a first motor is installed at the top of the filter pipe, a spiral blade is installed at the position, located in the filter pipe, of the bottom end of an output shaft of the first motor, and a plurality of through holes are formed in the surface of the spiral blade in a penetrating mode. A filter cover is fixedly mounted on the inner side of the intersection of the filter pipe and the liquid inlet pipe; the device is simple in structure and convenient to use, impurities in oil liquid can be filtered conveniently, collection and regular cleaning are facilitated, meanwhile, oil droplets carried in separated gas can be adsorbed and filtered, and recycling of the oil liquid is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of oil fields, in particular to an oil field associated gas separation device. Background Art

[0002] Oilfield associated gas is a combustible gas extracted from the bottom of the oilfield when the crude oil is extracted. Its main components are methane and a small amount of ethane, propane, etc. In order to improve the quality of crude oil and reduce environmental pollution, it is necessary to separate and process the extracted crude oil and associated gas. This scheme specifically involves an oilfield associated gas separation device;

[0003] When the existing oil field associated gas separation device is used, the crude oil contains impurities, which is not easy to filter, reducing the separation efficiency. In addition, the separated gas carries oil droplets, which is not easy to further adsorb and filter and recycle, which has a certain impact on actual use. Utility Model Content

[0004] The main purpose of the utility model is to provide an oilfield associated gas separation device, which can effectively solve the technical problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An oilfield associated gas separation device comprises a separator tank body, a liquid outlet pipe is installed at the bottom of the separator tank body, a filter assembly is installed on the outside of the separator tank body, an exhaust assembly is installed on the top of the separator tank body, the filter assembly comprises a liquid inlet pipe, the liquid inlet pipe is installed through the periphery of the separator tank body, a filter tube is installed through the inside of the liquid inlet pipe, a first motor is installed on the top of the filter tube, a spiral blade is installed at the bottom end of the output shaft of the first motor and located inside the filter tube, a plurality of through holes are opened on the surface of the spiral blade, a filter cover is fixedly installed on the inner side of the intersection of the filter tube and the liquid inlet pipe, the bottom of the filter tube is connected to a collecting tube, and a connecting port is provided on the top of the collecting tube and sleeved on the outer ring of the filter tube.

[0007] As a further solution of the utility model, the filter tube vertically penetrates the interior of the liquid inlet tube, and the filter tube and the interior of the liquid inlet tube are interconnected.

[0008] As a further solution of the utility model, the spiral blade is arranged to rotate synchronously with the output shaft of the first motor, and the arc surface inner circle of the filter cover is located on the periphery of the spiral blade.

[0009] As a further solution of the utility model, a threaded section is arranged on the periphery of the filter tube near the bottom end, and the connecting port is sleeved on the periphery of the filter tube near the bottom end in a threaded connection.

[0010] As a further solution of the utility model, the exhaust assembly includes an exhaust pipe, which is installed through the top of the separator tank body, a second motor is installed on the top of the exhaust pipe, a rotating rod is installed at the bottom end of the output shaft of the second motor and inside the exhaust pipe, a grille plate is fixedly installed near the bottom end of the exhaust pipe, the top of the grille plate is filled with cotton, four guide rails are fixedly installed at the edge of the top of the grille plate and attached to the inner wall of the exhaust pipe, and a pressure plate is movably installed on the periphery of the rotating rod.

[0011] As a further solution of the utility model, the four guide rails are arranged in a ring shape, and the rotating rod is located on the top of the grid plate and rotates synchronously with the output shaft of the second motor.

[0012] As a further solution of the utility model, the outer periphery of the rotating rod is provided with threads near the bottom end, and the pressing plate is sleeved on the outer periphery of the rotating rod and is threadedly connected via the threads.

[0013] The beneficial effects of the utility model are as follows:

[0014] By setting the filter assembly, the oil is filtered through the filter cover to filter the impurities, and the spiral blade is rotated by the first motor to facilitate the filtration of impurities in the oil, and can be continuously scraped and cleaned to improve the filtration efficiency. The scraped impurities are transported to the collection cylinder through the threaded connection of the connection port, which is convenient for the collection of impurities and regular cleaning;

[0015] By setting up an exhaust component, the separated gas flows out through the grid plate and the pressure plate. The oil droplets carried in the gas can be adsorbed and filtered through the filtration of the cotton body. The second motor drives the rotating rod to slide the pressure plate up and down, so that the pressure plate can squeeze out the oil droplets adsorbed in the cotton body, which is beneficial to the recovery and utilization of the oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an oilfield associated gas separation device of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a filter assembly in an oilfield associated gas separation device according to the utility model;

[0018] Figure 3 The utility model is a schematic diagram of the internal structure of an exhaust component in an oil field associated gas separation device.

[0019] In the figure: 1, separator tank; 2, liquid outlet pipe; 3, filter assembly; 4, exhaust assembly; 5, liquid inlet pipe; 6, filter tube; 7, first motor; 8, spiral blade; 9, through hole; 10, filter cover; 11, collection tube; 12, connection port; 13, exhaust pipe; 14, second motor; 15, rotating rod; 16, grille plate; 17, guide rail; 18, cotton body; 19, pressure plate. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1-3 As shown, an oilfield associated gas separation device comprises a separator tank body 1, a liquid outlet pipe 2 is installed at the bottom of the separator tank body 1, a filter assembly 3 is installed outside the separator tank body 1, an exhaust assembly 4 is installed on the top of the separator tank body 1, the filter assembly 3 comprises a liquid inlet pipe 5, the liquid inlet pipe 5 is installed through the periphery of the separator tank body 1, a filter tube 6 is installed inside the liquid inlet pipe 5, a first motor 7 is installed on the top of the filter tube 6, a spiral leaf 8 is installed at the bottom end of the output shaft of the first motor 7 and located inside the filter tube 6, a plurality of through holes 9 are opened on the surface of the spiral leaf 8, a filter cover 10 is fixedly installed on the inner side of the intersection of the filter tube 6 and the liquid inlet pipe 5, a collecting tube 11 is connected to the bottom of the filter tube 6, and a connecting port 12 is provided on the top of the collecting tube 11 and sleeved on the outer ring of the filter tube 6.

[0022] In this embodiment, the filter tube 6 vertically penetrates the interior of the liquid inlet pipe 5, and the filter tube 6 and the interior of the liquid inlet pipe 5 are interconnected. The oil and associated gas enter the separator tank 1 through the liquid inlet pipe 5 for oil and gas separation, and the impurities in the oil are filtered through the filter tube 6.

[0023] In this embodiment, the spiral blade 8 is arranged to rotate synchronously with the output shaft of the first motor 7, and the arc inner ring of the filter cover 10 is located at the periphery of the spiral blade 8. Impurities in the oil are filtered through the filter cover 10, and the spiral blade 8 rotates to continuously scrape off the filtered impurities.

[0024] In this embodiment, a threaded section is provided on the periphery of the filter tube 6 near the bottom end, and the connecting port 12 is sleeved on the periphery of the filter tube 6 near the bottom end and is threadedly connected. The threaded connection between the connecting port 12 and the filter tube 6 facilitates the disassembly and assembly of the collecting tube 11 and facilitates regular cleaning.

[0025] In this embodiment, the exhaust assembly 4 includes an exhaust pipe 13, which is installed through the top of the separator tank 1, and a second motor 14 is installed on the top of the exhaust pipe 13. A rotating rod 15 is installed at the bottom end of the output shaft of the second motor 14 and inside the exhaust pipe 13. A grid plate 16 is fixedly installed near the bottom of the exhaust pipe 13, and a cotton body 18 is filled on the top of the grid plate 16. Four guide rails 17 are fixedly installed on the top of the grid plate 16 near the edge and attached to the inner wall of the exhaust pipe 13. A pressing plate 19 is movably installed on the periphery of the rotating rod 15, and the pressing plate 19 slides downward by rotating and threading the rotating rod 15. The oil droplets adsorbed in the cotton body 18 are squeezed out for recovery.

[0026] In this embodiment, four guide rails 17 are arranged in a ring shape, and the rotating rod 15 is located on the top of the grid plate 16 and rotates synchronously with the output shaft of the second motor 14. The separated associated gas enters the exhaust pipe 13 and absorbs the carried oil droplets through the cotton body 18.

[0027] In this embodiment, a thread is provided on the outer periphery of the rotating rod 15 near the bottom end, and the pressing plate 19 is sleeved on the outer periphery of the rotating rod 15 and is threadedly connected through the thread. The oil droplets adsorbed and filtered in the cotton body 18 are squeezed out by the pressing plate 19 for recycling.

[0028] It should be noted that the utility model is an oilfield associated gas separation device. When in use, first connect the oilfield pipeline to the liquid inlet pipe 5 and open the valve, the oil and associated gas enter the separator tank 1 for oil and gas separation, and are discharged through the liquid outlet pipe 2 and the exhaust pipe 13 respectively. When filtering, the oil flows into the separator tank 1 through the filter cover 10, so that impurities are filtered through the filter cover 10, and at the same time, the first motor 7 is started to rotate the spiral blade 8, and the impurities filtered by the filter cover 10 are scraped off and transported to the collection cylinder 11. At the same time, the oil transported by the spiral blade 8 re-enters the liquid inlet pipe 5 through the through hole 9 under the action of pressure and flows into the separator tank 1, and the scraped impurities enter In the collecting cylinder 11, by closing the valve of the liquid inlet pipe 5, the collecting cylinder 11 is rotated to disengage the connecting port 12 from the bottom end of the filter tube 6 and take it out, and the filtered impurities are cleaned regularly. The gas separated by the separator tank body 1 enters the exhaust pipe 13, and flows upward through the grid plate 16 and the pressure plate 19 to be discharged. The oil droplets in the gas are further adsorbed and filtered by the cotton body 18. By starting the second motor 14, the rotating rod 15 is rotated, and the pressure plate 19 is slid downward through the guide rail 17 through the thread on the outer periphery of the rotating rod 15, and the cotton body 18 is pressed to squeeze out the oil, which drips into the separator tank body 1 through the grid plate 16 for re-separation and recycling.

[0029] The above shows and describes the basic principle and main features of the utility model and the 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 for explaining the principle of 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 claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An oilfield associated gas separation device, comprising a separator tank (1), a liquid outlet pipe (2) is installed at the bottom of the separator tank (1), a filter assembly (3) is installed outside the separator tank (1), and an exhaust assembly (4) is installed at the top of the separator tank (1), characterized in that: The filter assembly (3) comprises a liquid inlet pipe (5), the liquid inlet pipe (5) is installed through the periphery of the separator tank body (1), a filter pipe (6) is installed through the inside of the liquid inlet pipe (5), a first motor (7) is installed on the top of the filter pipe (6), a spiral blade (8) is installed at the bottom end of the output shaft of the first motor (7) and located inside the filter pipe (6), a plurality of through holes (9) are provided on the surface of the spiral blade (8), a filter cover (10) is fixedly installed on the inner side of the intersection of the filter pipe (6) and the liquid inlet pipe (5), the bottom of the filter pipe (6) is connected to a collecting tube (11), and a connecting port (12) is provided at the top of the collecting tube (11) and is sleeved on the outer ring of the filter pipe (6).

2. The oilfield associated gas separation device according to claim 1, characterized in that: The filter tube (6) vertically penetrates the interior of the liquid inlet tube (5), and the filter tube (6) and the interior of the liquid inlet tube (5) are interconnected.

3. The oilfield associated gas separation device according to claim 1, characterized in that: The spiral blade (8) is arranged to rotate synchronously with the output shaft of the first motor (7), and the arc surface inner ring of the filter cover (10) is located on the periphery of the spiral blade (8).

4. The oilfield associated gas separation device according to claim 1, characterized in that: A threaded section is provided on the periphery of the filter tube (6) near the bottom end, and the connection port (12) is sleeved on the periphery of the filter tube (6) near the bottom end in a threaded connection.

5. The oilfield associated gas separation device according to claim 1, characterized in that: The exhaust assembly (4) comprises an exhaust pipe (13), the exhaust pipe (13) is installed through the top of the separator tank (1), a second motor (14) is installed on the top of the exhaust pipe (13), a rotating rod (15) is installed at the bottom end of the output shaft of the second motor (14) and inside the exhaust pipe (13), a grille plate (16) is fixedly installed near the bottom of the exhaust pipe (13), the top of the grille plate (16) is filled with cotton (18), four guide rails (17) are fixedly installed at the top of the grille plate (16) near the edge and attached to the inner wall of the exhaust pipe (13), and a pressure plate (19) is movably installed on the periphery of the rotating rod (15).

6. The oilfield associated gas separation device according to claim 5, characterized in that: The four guide rails (17) are arranged in a ring-shaped manner, and the rotating rod (15) is located on the top of the grid plate (16) and is arranged to rotate synchronously with the output shaft of the second motor (14).

7. The oilfield associated gas separation device according to claim 5, characterized in that: The outer periphery of the rotating rod (15) is provided with a thread near the bottom end, and the pressing plate (19) is sleeved on the outer periphery of the rotating rod (15) and is threadedly connected via the thread.

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