Oilfield water injection filtering device

Abstract

The utility model discloses an oilfield water injection filtering device which comprises a box body, a partition plate is arranged in the box body, a filtering plate, an activated carbon filtering net and an ultrafiltration membrane filtering net are arranged below the partition plate, a threaded rod is arranged above the filtering plate, a first moving block is arranged outside the threaded rod in a sleeved mode, and a moving outer frame is arranged at the bottom of the first moving block. A lifting plate is arranged on the inner side of the movable outer frame, an inner plate is arranged at the bottom of the lifting plate, a cleaning plate sleeves the inner plate, sliding columns are arranged on the side surface of the lifting plate, grooved rail sets are arranged on the inner side wall of the box body, through grooves are formed in the side surface of the movable outer frame, a plurality of telescopic columns are arranged between the movable outer frame and the lifting plate, and first springs sleeve the telescopic columns. A carrying plate is arranged on the left side of the filtering plate, a blow-off pipe is arranged on the left side of the box body, and an auxiliary discharging assembly is further arranged in the box body; according to the device, through the arrangement of the grooved rail set and the auxiliary discharging assembly, the cleaning effect of the cleaning plate on impurities is better, the sewage discharging efficiency is improved, and the practicability of the device is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, in particular to an oilfield water injection filtering device. Background Art

[0002] After an oil field is put into development, as the mining time increases, the oil layer itself is continuously consumed, the pressure gradually decreases, a large amount of underground crude oil is degassed, the viscosity increases, and the output decreases. In order to make up for the underground deficit caused by the crude oil extraction and maintain or increase the oil field output, the oil field must be injected with water, and the content of dirt such as mud in the water needs to be minimized. Therefore, a filtering device is needed to filter it. However, the existing oil field water injection filtering device has a poor filtering effect, cannot effectively filter the incoming water, and is not convenient for cleaning the filtered impurities, thereby reducing the practicality of the filtering device.

[0003] For example, the utility model patent with authorization announcement number CN217757106U discloses an oilfield water injection filter device. As an existing technology, although this device enhances the filtering effect of water injection, it still has certain usage defects. The device drives the threaded sleeve to move through the screw, and the threaded sleeve drives the cleaning plate to move through the cooperation of the shell, spring, limit plate and support rod to clean the filter plate, and open the second valve body to discharge impurities through the drain pipe. The above process has the following shortcomings: 1) The one-time movement of the cleaning plate toward the drain pipe cannot clean the impurities on the filter plate, so the reset movement of the cleaning plate will drive some impurities to move in the direction away from the drain pipe, resulting in the inability to discharge these impurities; 2) The inner diameter of the drain pipe is limited, and it is not possible to completely discharge impurities through the drain pipe. For this reason, we design an oilfield water injection filter device to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide an oilfield water injection filtering device to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A water injection and filtering device for oil fields comprises a box body, a water injection port and a feed port are provided on the top of the box body, a water outlet is provided on the bottom of the right surface of the box body, the interior of the box body is divided into two by a partition, the top of the partition is a downward-closing hopper structure, and a discharge channel is provided through the center thereof, a valve is provided in the discharge channel, a rotating rod is provided above the partition body for rotating horizontally, a plurality of stirring rods are provided on the surface of the rotating rod, a first motor and a second motor are provided on the outer surface of the box body, the output shaft of the first motor is connected to one end of the rotating rod, a filter plate, an activated carbon filter screen and an ultrafiltration membrane filter screen are provided in sequence below the partition body, a threaded rod is provided above the filter plate for rotating horizontally, the external threaded sleeve of the threaded rod is provided with a first movable block, and the bottom of the first movable block The lifting plate is fixed with an inner plate at the bottom, and a cleaning plate is provided on the outer sliding sleeve of the inner plate. Sliding columns are symmetrically provided on the front and rear surfaces of the lifting plate. The front and rear inner walls of the box body are symmetrically provided with groove rail groups for the sliding columns to slide and embed. The front and rear surfaces of the movable outer frame are respectively provided with through grooves for the sliding columns to pass through. A plurality of telescopic columns are provided between the movable outer frame and the lifting plate. The outer sleeve of the telescopic column is provided with a first spring. A loading plate is provided on the left side of the filter plate, and the other side of the loading plate is connected to the left inner wall of the box body. A sewage pipe is connected to the left inner wall of the box body and is located at the top of the loading plate. The output shaft of the second motor is connected to one end of the threaded rod. An auxiliary discharge assembly is also provided inside the box body.

[0007] As a preferred solution of the present invention: the groove rail group includes a first slide groove and a second slide groove arranged parallel to each other, the second slide groove is located above the first slide groove, and the length of the second slide groove is greater than the length of the first slide groove, the left end of the first slide groove and the left end of the second slide groove are connected by a vertical groove, the right end of the first slide groove is connected with a curved groove, and the other end of the curved groove is connected with the second slide groove, an inner groove is provided on the upper inner wall of the second slide groove, and an inner side of the inner groove is rotatably connected to an abutting arc plate through a rotating shaft, a torsion spring is connected to the rotating shaft, and an abutting block is provided on the surface of the abutting arc plate and close to the rotating shaft.

[0008] As a further preferred solution of the present invention: the auxiliary discharging assembly includes a third motor, a bidirectional screw, a second moving block and a push plate. The bidirectional screw is rotatably arranged between the front and rear inner walls of the box, the bidirectional screw is located above the threaded rod, and two second moving blocks are provided, and both are threadedly sleeved on the outside of the bidirectional screw. The two second moving blocks are respectively provided with connecting blocks at the bottom of the sides away from each other, and the bottom of the connecting block is provided with a push plate, the bottom of the push plate is slidably connected to the top of the loading plate, and the push plate and the second moving block are both slidably arranged on the left inner wall of the box, and the front surface of the box is provided with a third motor, and the output shaft of the third motor is connected to one end of the bidirectional screw, and the inner wall of the box is provided with a accommodating groove for the push plate and the connecting block to be embedded.

[0009] As a further preferred solution of the present invention: a groove adapted to the inner plate is opened on the top of the cleaning plate, a plurality of second springs are provided on the bottom wall of the groove, and the other end of the second spring is connected to the bottom of the inner plate.

[0010] As a further preferred solution of the present invention: the movable outer frame is in a "U"-shaped structure, and the front and rear surfaces of the movable outer frame are respectively slidably connected to the front and rear inner walls of the box body.

[0011] As a further preferred solution of the present invention: one end of the first spring is connected to the top of the lifting plate, and the other end is connected to the inner top wall of the movable outer frame.

[0012] The beneficial effects of the utility model are:

[0013] 1. This device is provided with a groove rail group, so that when the cleaning plate moves to the left, the cleaning plate abuts against the surface of the filter plate to achieve the function of cleaning impurities. When the cleaning plate moves to the right, the cleaning plate does not contact the surface of the filter plate, which can prevent the cleaning plate from driving some impurities away from the sewage pipe, thereby avoiding the situation where some impurities cannot be discharged. Moreover, when the sliding column moves to abut against the other side of the abutting curved plate, it will smoothly squeeze the abutting curved plate to rotate and squeeze the abutting curved plate into the inner groove, so that the sliding column can be smoothly reset. Under the action of the torsion spring, the abutting curved plate is also reset, which is convenient for the next cleaning operation.

[0014] 2. The device is provided with an auxiliary discharge component. When in use, the bidirectional screw can be driven to rotate by the third motor, which can drive the two second moving blocks to approach each other, thereby driving the two push plates to approach each other, and the impurities accumulated on the top of the carrier plate can be gathered to the drain pipe. Then, the push plate is controlled to reset, and the cleaning plate is controlled to move again, so that the impurities can be completely discharged through the drain pipe, thereby improving the drainage efficiency and enhancing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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:

[0016] Figure 1 This is the main view of the overall structure of the utility model;

[0017] Figure 2 This is a main sectional view of the overall structure of the utility model;

[0018] Figure 3 It is a three-dimensional diagram of the local structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of a part of the utility model;

[0020] Figure 5 It is a partial structural diagram of the utility model.

[0021] Among them: 1- box body, 2- sewage pipe, 3- third motor, 4- water inlet, 5- feed inlet, 6- first motor, 7- second motor, 8- water outlet, 9- stirring rod, 10- partition, 11- threaded rod, 12- filter plate, 13- ultrafiltration membrane filter, 14- activated carbon filter, 15- moving outer frame, 16- loading plate, 17- groove rail group, 18- bidirectional screw, 19- first moving block, 20- through groove, 21- telescopic column, 22- sliding column, 23- cleaning plate, 24- push plate, 25- inner plate, 26- second moving block, 27- lifting plate, 28- second spring, 29- inner groove, 30- rotating shaft, 31- abutment block, 32- abutment arc plate, 33- second slide groove, 34- vertical groove, 35- first slide groove, 36- curved groove. DETAILED DESCRIPTION

[0022] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0023] See also Figure 1-5The top of the box body 1 is provided with a water injection port 4 and a feed port 5. The bottom of the right surface of the box body 1 is provided with a water outlet 8. The interior of the box body 1 is divided into two by a partition 10. The top of the partition 10 is a downward-closing hopper structure, and a discharge channel is passed through the center thereof. A valve is provided in the discharge channel. A rotating rod is provided above the partition 10 for horizontal rotation. A plurality of stirring rods 9 are provided on the surface of the rotating rod. A first motor 6 and a second motor 7 are provided on the outer surface of the box body 1. The output shaft of the first motor 6 is connected to one end of the rotating rod. A filter plate 12, an activated carbon filter screen 14 and an ultrafiltration membrane filter screen 13 are provided in sequence below the partition 10. A threaded rod 11 is provided above the filter plate 12 for horizontal rotation. The external thread sleeve of the threaded rod 11 is provided with a first movable block 19. A movable outer frame 15 is provided at the bottom of the first movable block 19. The movable outer frame 15 is in a "U"-shaped structure. The front and rear side surfaces of the movable outer frame 15 are respectively connected to the box The front and rear inner walls of the box body 1 are slidably connected, and a lifting plate 27 is provided on the inner side of the movable outer frame 15 for sliding up and down. The bottom of the lifting plate 27 is provided with an inner plate 25, and the outer sliding sleeve of the inner plate 25 is provided with a cleaning plate 23. The front and rear surfaces of the lifting plate 27 are symmetrically provided with sliding posts 22. The front and rear inner walls of the box body 1 are symmetrically provided with a groove rail group 17 for the sliding posts 22 to slide into. The front and rear surfaces of the movable outer frame 15 are respectively provided with a through groove 20 for the sliding posts 22 to pass through. The movable outer frame 15 and the lifting plate 27 are connected. A plurality of telescopic columns 21 are provided in the box body, and a first spring is provided on the outside of the telescopic column 21. One end of the first spring is connected to the top of the lifting plate 27, and the other end is connected to the inner top wall of the movable outer frame 15. A loading plate 16 is provided on the left side of the filter plate 12, and the other side of the loading plate 16 is connected to the left inner wall of the box body 1. A sewage pipe 2 is provided on the left inner wall of the box body 1 and is located at the top of the loading plate 16. The output shaft of the second motor 7 is connected to one end of the threaded rod 11, and an auxiliary discharge component is also provided inside the box body 1.

[0024] The groove rail group 17 includes a first slide groove 35 and a second slide groove 33 arranged parallel to each other. The second slide groove 33 is located above the first slide groove 35, and the length of the second slide groove 33 is greater than the length of the first slide groove 35. The left end of the first slide groove 35 and the left end of the second slide groove 33 are connected through a vertical groove 34. The right end of the first slide groove 35 is connected with a curved groove 36, and the other end of the curved groove 36 is connected with the second slide groove 33. The upper inner wall of the second slide groove 33 is provided with an inner groove 29. One side of the inner groove 29 is rotatably connected to the abutting arc plate 32 through the rotating shaft 30. The rotating shaft 30 is connected to a torsion spring. The torsion spring is used to To provide power for the rotation of the abutting curved plate 32, an abutting block 31 is provided on the surface of the abutting curved plate 32 and close to the side of the rotating shaft 30; under the drive of the torsion spring, the abutting block 31 can abut against the edge of the notch of the inner groove 29 to limit and fix the position of the abutting curved plate 32, and the abutting curved plate 32 is located above the curved groove 36. As the movable outer frame 15 moves to the left, the sliding post 22 embedded in the groove rail group 17 also moves to the left. Therefore, when the sliding post 22 moves to the top of the curved groove 36, it will be blocked by the abutting curved plate 32, and then enter the curved groove 36, and then enter the first slide groove 35 The sliding movement realizes the change movement of the slide post 22 from the second slide groove 33 into the first slide groove 35, that is, the height level of the slide post 22 is lowered, thereby driving the lifting plate 27 together with the inner plate 25 and the cleaning plate 23 to descend, so that the cleaning plate 23 abuts against the surface of the filter plate 12, realizing the function of cleaning impurities; when the slide post 22 moves to the leftmost end of the first slide groove 35, under the elastic force of the first spring, the lifting plate 27 together with the inner plate 25 and the cleaning plate 23 are pulled up, so that the cleaning plate 23 does not contact the surface of the filter plate 12, at this time, the second motor 7 is reversed, thereby moving the outer frame 15 moves to the right, that is, drives the cleaning plate 23 to move to the right, and the cleaning plate 23 does not contact the surface of the filter plate 12 during the above process, which can prevent the cleaning plate 23 from driving some impurities to move in the direction away from the sewage pipe 2, thereby avoiding the situation that some impurities cannot be discharged. In addition, when the slide post 22 moves to abut against the other side of the abutting curved plate 32, it will smoothly squeeze the abutting curved plate 32 to rotate and squeeze the abutting curved plate 32 into the interior of the inner groove 29, so that the slide post 22 is smoothly reset. Under the action of the torsion spring, the abutting curved plate 32 is also reset, which is convenient for the next cleaning operation.

[0025] The auxiliary discharge assembly includes a third motor 3, a bidirectional screw 18, a second moving block 26 and a push plate 24. The bidirectional screw 18 is rotatably arranged between the front and rear inner walls of the box body 1. The bidirectional screw 18 is located above the threaded rod 11. There are two second moving blocks 26, and both are threadedly sleeved on the outside of the bidirectional screw 18. The bottom of the two second moving blocks 26 are away from each other and are respectively provided with connecting blocks. The bottom of the connecting block is provided with a push plate 24. The bottom of the push plate 24 is slidably connected to the top of the loading plate 16. The push plate 24 and the second moving block 26 are both slidably arranged on the left inner wall of the box body 1. The front side of the box body 1 A third motor 3 is provided on the surface, and the output shaft of the third motor 3 is connected to one end of the bidirectional screw 18. The inner wall of the box body 1 is provided with a receiving groove for the push plate 24 and the connecting block to be embedded. When in use, the bidirectional screw 18 can be driven to rotate by the third motor 3, and then the two second movable blocks 26 can be driven to approach each other, which can drive the two push plates 24 to approach each other, and the impurities accumulated on the top of the carrier plate 16 can be gathered to the sewage pipe 2. Then, the push plate 24 is controlled to reset, and the cleaning plate 23 is controlled to move again, so that the impurities can be conveniently discharged completely through the sewage pipe 2, thereby improving the sewage discharge efficiency and enhancing the practicality of the device.

[0026] A groove matching the inner plate 25 is formed on the top of the cleaning plate 23 , and a plurality of second springs 28 are provided on the bottom wall of the groove. The other ends of the second springs 28 are connected to the bottom of the inner plate 25 .

[0027] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. An oilfield water injection and filtration device, comprising a housing (1), a water injection port (4) and a feed port (5) being provided at the top of the housing (1), a water outlet (8) being provided at the bottom of the right side surface of the housing (1), the interior of the housing (1) being divided into two by a partition (10), the top of the partition (10) being a downwardly converging hopper structure, and a feed channel being provided through the center thereof, the feed channel being provided with a valve; and characterized in that: A rotating rod is provided above the partition (10) for rotating in the horizontal direction, and a plurality of stirring rods (9) are provided on the surface of the rotating rod. A first motor (6) and a second motor (7) are provided on the outer surface of the box body (1). A filter plate (12), an activated carbon filter screen (14) and an ultrafiltration membrane filter screen (13) are provided below the partition (10) in sequence. A threaded rod (11) is provided above the filter plate (12) for rotating in the horizontal direction, and a first moving block (19) is provided on the outer thread sleeve of the threaded rod (11). A moving outer frame (15) is provided at the bottom of the first moving block (19). A lifting plate (27) is provided on the inner side of the moving outer frame (15) for sliding up and down. An inner plate (25) is provided at the bottom of the lifting plate (27). A cleaning plate (23) is provided on the outer sliding sleeve of the inner plate (25). The front and rear surfaces of the lifting plate (27) are symmetrically provided with sliding columns (22); the front and rear inner walls of the box body (1) are symmetrically provided with groove rail groups (17) for the sliding columns (22) to slide and embed; the front and rear surfaces of the movable outer frame (15) are respectively provided with through grooves (20) for the sliding columns (22) to pass through; a plurality of telescopic columns (21) are provided between the movable outer frame (15) and the lifting plate (27); the outer portion of the telescopic columns (21) is sleeved with a first spring; a loading plate (16) is provided on the left side of the filter plate (12); the other side of the loading plate (16) is connected to the left inner wall of the box body (1); a sewage pipe (2) is provided on the left inner wall of the box body (1) and is located at the top of the loading plate (16); and an auxiliary discharge assembly is also provided inside the box body (1).

2. The oilfield water injection filter device according to claim 1, characterized in that: The groove rail group (17) includes a first slide groove (35) and a second slide groove (33) arranged parallel to each other, the second slide groove (33) is located above the first slide groove (35), and the length of the second slide groove (33) is greater than the length of the first slide groove (35), the left end of the first slide groove (35) and the left end of the second slide groove (33) are connected through a vertical groove (34), the right end of the first slide groove (35) is connected with a curved groove (36), and the other end of the curved groove (36) is connected with the second slide groove (33), an inner groove (29) is provided on the upper inner wall of the second slide groove (33), and one side of the inner groove (29) is rotatably connected to an abutting arc plate (32) through a rotating shaft (30), a torsion spring is connected to the rotating shaft (30), and an abutting block (31) is provided on the surface of the abutting arc plate (32) and on the side close to the rotating shaft (30).

3. The oilfield water injection filter device according to claim 2, characterized in that: The auxiliary discharging assembly includes a third motor (3), a bidirectional screw (18), a second moving block (26) and a push plate (24), wherein the bidirectional screw (18) is rotatably arranged between the front and rear inner walls of the box body (1), the bidirectional screw (18) is located above the threaded rod (11), two second moving blocks (26) are provided, and both are threadedly sleeved on the outside of the bidirectional screw (18), and the bottoms of the two second moving blocks (26) away from each other are respectively provided with connecting blocks, the bottom of the connecting block is provided with a push plate (24), the bottom of the push plate (24) is slidably connected to the top of the loading plate (16), the push plate (24) and the second moving block (26) are both slidably arranged on the left inner wall of the box body (1), the front surface of the box body (1) is provided with a third motor (3), the output shaft of the third motor (3) is connected to one end of the bidirectional screw (18), and the inner wall of the box body (1) is provided with a receiving groove for the push plate (24) and the connecting block to be embedded.

4. The oilfield water injection filtering device according to claim 3, characterized in that: The top of the cleaning plate (23) is provided with a groove adapted to the inner plate (25), and the bottom wall of the groove is provided with a plurality of second springs (28), and the other end of the second spring (28) is connected to the bottom of the inner plate (25).

5. The oilfield water injection filtering device according to claim 4, characterized in that: The movable outer frame (15) is in a U-shaped structure, and the front and rear surfaces of the movable outer frame (15) are respectively slidably connected to the front and rear inner walls of the box body (1).

6. The oilfield water injection filtering device according to claim 5, characterized in that: One end of the first spring is connected to the top of the lifting plate (27), and the other end is connected to the inner top wall of the movable outer frame (15).

7. The oilfield water injection filtering device according to claim 1, characterized in that: The output shaft of the first motor (6) is connected to one end of the rotating rod, and the output shaft of the second motor (7) is connected to one end of the threaded rod (11).

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