Oil exploitation sand filtering device

Abstract

The utility model discloses an oil exploitation sand filtering device which comprises a sand filtering box, the lower surface of the sand filtering box is fixedly connected with an air cylinder, the output end of the air cylinder is fixedly connected with a rack, the lower surface of the sand filtering box is fixedly connected with a fixing frame, the bottom inner wall of the fixing frame is fixedly connected with a bearing, and the bottom inner wall of the fixing frame is fixedly connected with a rotating shaft. The inner surface of the bearing is fixedly connected with a rotating shaft, the side surface of the rotating shaft is rotatably connected with the sand filtering box, the side surface of the rotating shaft is fixedly connected with a gear, and the side surface of the gear is in meshed connection with the rack. According to the sand filtering device, the time for replacing the sand filtering frame is saved, the sand filtering efficiency of oil exploitation is improved, the rotating angle of the rotating disc each time can be fixed, it is guaranteed that the sand filtering frame is accurately switched to the working position, and oil leakage or the influence on the filtering effect caused by inaccurate positioning is avoided.

Description

Technical Field

[0001] This utility model relates to the field of oil sand filtration technology, and in particular to an oil extraction sand filtration device. Background Technology

[0002] Sand filtration in oil extraction is an important step in the process. Its purpose is to remove solid impurities such as sand particles from the oil to protect extraction equipment, improve oil quality, and reduce environmental impact. Filtering out the sand particles can improve the quality of the oil.

[0003] Currently, sand particles are filtered through filter plates during the oil sand filtration process. However, after a certain period of time, the filter plates become clogged, requiring frequent manual shutdowns to replace them. This prolonged downtime reduces the efficiency of oil extraction sand filtration. Utility Model Content

[0004] The purpose of this invention is to provide an oil extraction sand filtering device that allows for easy replacement of the sand filter frame without requiring prolonged downtime, thus saving time and improving the efficiency of oil extraction sand filtering.

[0005] To achieve the above objectives, an oil extraction sand filtering device is provided, comprising: a sand filter box; a cylinder is fixedly connected to the lower surface of the sand filter box; a rack is fixedly connected to the output end of the cylinder; a fixed frame is fixedly connected to the lower surface of the sand filter box; a bearing is fixedly connected to the inner wall of the bottom of the fixed frame; a rotating shaft is fixedly connected to the inner surface of the bearing; the side surface of the rotating shaft is rotatably connected to the sand filter box; a gear is fixedly connected to the side surface of the rotating shaft; the side surface of the gear meshes with the rack; a fixed plate is fixedly connected to the upper surface of the rotating shaft; a turntable is fixedly connected to the upper surface of the fixed plate; the side surface of the turntable is rotatably connected to the sand filter box; a placement groove is provided inside the turntable; a sand filter frame is provided on the inner surface of the placement groove; a movable plate is fixedly connected to the rear surface of the rack; a first limiting block is fixedly connected to the lower surface of the sand filter box; and a second limiting block is fixedly connected to the lower surface of the sand filter box.

[0006] According to the oil extraction sand filtering device, an insertion block is fixedly connected to the side surface of the sand filtering frame, and an insertion groove is provided inside the turntable, with the inner surface of the insertion groove slidably connected to the insertion block.

[0007] According to the oil extraction sand filtering device, a handle is fixedly connected to the upper surface of the sand filtering frame, and sand filtering holes are provided inside the sand filtering frame.

[0008] According to the oil extraction sand filtering device, the number of sand filtering frames in the placement trough is two and they are distributed on the left and right, and the lower surface of the sand filtering box is fixedly connected to a support column.

[0009] According to the oil extraction sand filtering device, the sand filter box has an opening inside, and a feed pipe is fixedly connected to the inner surface of the opening, through which oil that needs to be filtered is introduced into the sand filter box.

[0010] According to the oil extraction sand filtering device, a discharge pipe is fixedly connected to the lower surface of the sand filter box, and a valve is installed inside the discharge pipe. By opening the valve, the filtered material is discharged from the sand filter box through the discharge pipe.

[0011] According to the oil extraction sand filtering device, the upper surface of the sand filter box is provided with a cover plate, the side surface of the cover plate is fixedly connected with a first connecting block, and the side surface of the sand filter box is fixedly connected with a second connecting block.

[0012] According to the oil extraction sand filtering device, the first connecting block is internally threaded with a bolt, and the side surface of the bolt is threadedly connected to the second connecting block. The cover plate can be easily connected to the sand filtering box by means of the bolt.

[0013] The above-mentioned solution has the following beneficial effects:

[0014] By setting up a sand filter box, cylinder, rack, fixing frame, bearing, rotating shaft, gear, turntable, placement groove, and sand filter frame, the sand filter frame can be easily replaced without long-term downtime, saving time on sand filter frame replacement and thus improving the efficiency of sand filtering in oil extraction.

[0015] By setting a movable plate, a first limit block, and a second limit block, the angle of rotation of the turntable can be kept constant each time, ensuring that the filter sand frame accurately switches to the working position and avoiding oil leakage or affecting the filtration effect due to inaccurate positioning.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a schematic diagram of the overall structure of an oil extraction sand filtering device according to the present invention;

[0019] Figure 2 This is a top view of an oil extraction sand filtering device according to the present invention;

[0020] Figure 3 for Figure 2 Sectional view of part of the structure at point AA;

[0021] Figure 4 This is a partially exploded view of an oil extraction sand filtering device according to the present invention;

[0022] Figure 5 This is a bottom view of a sand filtering device for oil extraction according to this utility model.

[0023] Legend:

[0024] 1. Filter box; 2. Cylinder; 3. Rack; 4. Fixing frame; 5. Bearing; 6. Shaft; 7. Gear; 8. Turntable; 9. Placement slot; 10. Filter frame; 11. Insertion block; 12. Insertion slot; 13. Handle; 14. Filter hole; 15. Fixing plate; 16. Moving plate; 17. First limiting block; 18. Second limiting block; 19. Opening; 20. Feed pipe; 21. Support column; 22. Discharge pipe; 23. Cover plate; 24. First connecting block; 25. Second connecting block; 26. Bolt. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] Reference Figure 1-5This utility model discloses an oil extraction sand filtering device, comprising: a sand filtering box 1, a cylinder 2 fixedly connected to the lower surface of the sand filtering box 1, a rack 3 fixedly connected to the output end of the cylinder 2, a fixing frame 4 fixedly connected to the lower surface of the sand filtering box 1, the fixing frame 4 supporting a rotating shaft 6, a bearing 5 fixedly connected to the inner wall of the bottom of the fixing frame 4, the bearing 5 being configured to make the rotation of the rotating shaft 6 more stable, a rotating shaft 6 fixedly connected to the inner surface of the bearing 5, a side surface of the rotating shaft 6 being rotatably connected to the sand filtering box 1, a gear 7 fixedly connected to the side surface of the rotating shaft 6, the side surface of the gear 7 meshing with the rack 3, a fixing plate 15 fixedly connected to the upper surface of the rotating shaft 6, a turntable 8 fixedly connected to the upper surface of the fixing plate 15, a side surface of the turntable 8 being rotatably connected to the sand filtering box 1, and a mechanism being provided inside the turntable 8. The placement tank 9 has two filter sand frames 10 on its inner surface, arranged left and right. When the cylinder 2 is activated, its output end extends to move the rack 3. The rack 3 meshes with the fixed frame 4. The movement of the rack 3 causes the gear 7, rotating shaft 6, filter sand frames 10, and turntable 8 to rotate. The second limit block 18 limits the movement of the rack 3, allowing the two filter sand frames 10 on the turntable 8 to interchange positions. Similarly, when the cylinder 2 is activated, its output end extends back to move the rack 3. The moving plate 16 contacts the first limit block 17, allowing the two filter sand frames 10 on the turntable 8 to interchange positions. This allows the operator to easily replace one set of filter sand frames 10 while the other set is filtering sand, reducing equipment downtime.

[0027] An insertion block 11 is fixedly connected to the side surface of the filter sand frame 10. An insertion groove 12 is provided inside the turntable 8. The inner surface of the insertion groove 12 is slidably connected to the insertion block 11. A handle 13 is fixedly connected to the upper surface of the filter sand frame 10. The handle 13 is designed to facilitate the removal of the filter sand frame 10. The filter sand frame 10 is provided with multiple filter sand holes 14 inside. A moving plate 16 is fixedly connected to the rear surface of the rack 3. A first limiting block 17 is fixedly connected to the lower surface of the filter sand box 1. A second limiting block 18 is fixedly connected to the lower surface of the filter sand box 1. The first limiting block 17 and the second limiting block 18 are designed to ensure that the angle of rotation of the turntable 8 is constant each time, ensuring that the filter sand frame 10 accurately switches to the working position and avoiding oil leakage or affecting the filtration effect due to inaccurate positioning.

[0028] A support column 21 is fixedly connected to the lower surface of the sand filter box 1, which supports the device. An opening 19 is provided inside the sand filter box 1, and a feed pipe 20 is fixedly connected to the inner surface of the opening 19. Petroleum raw materials are added into the sand filter box 1 through the feed pipe 20. A discharge pipe 22 is fixedly connected to the lower surface of the sand filter box 1, and a valve is provided inside the discharge pipe 22. The filtered oil is discharged from the sand filter box 1 through the discharge pipe 22 by opening the valve. A cover plate 23 is provided on the upper surface of the sand filter box 1. A first connecting block 24 is fixedly connected to the side surface of the cover plate 23, and a second connecting block 25 is fixedly connected to the side surface of the sand filter box 1. A bolt 26 is threaded inside the first connecting block 24, and the side surface of the bolt 26 is threaded to the second connecting block 25. The cover plate 23 can be easily connected to the sand filter box 1 through the bolt 26.

[0029] Working principle: During use, two sets of filter sand frames 10 are placed in the placement groove 9. Oil for filtering is added to the filter sand box 1 through the feed pipe 20. The oil falls onto the filter sand frames 10 for filtering. After a period of use, when filter sand accumulates on one side of the filter sand frames 10, affecting the filtering effect, the oil supply through the feed pipe 20 is stopped. The cover plate 23 on the side away from the feed pipe 20 is opened, and the cylinder 2 is started. The output end of the cylinder 2 extends, driving the rack 3 to move. The rack 3 meshes with the fixed frame 4. The movement of the rack 3 drives the gear 7, rotating shaft 6, filter sand frames 10, and turntable 8 to rotate. (Second limit...) Position block 18 limits the movement of rack 3, causing the positions of the two filter sand frames 10 on turntable 8 to be interchanged. The used filter sand frame 10 moves to the side away from feed pipe 20, and the filter sand frame 10 that has not been filtered moves to the side of feed pipe 20. Oil continues to be introduced into filter sand box 1 through feed pipe 20. At the same time, the operator can take out another set of filter sand frames 10 from placement slot 9 through handle 13 and replace them. After the replaced filter sand frame 10 is placed in placement slot 9, the cover plate 23 at the end away from feed pipe 20 is placed on filter sand box 1 and fixed. When another set of filter sand frames 10 needs to be replaced after a period of use, the cylinder 2 is activated in the same way. The output end of the cylinder 2 extends back to drive the rack 3 to move. The moving plate 16 contacts the first limit block 17, and the positions of the two filter sand frames 10 on the turntable 8 are interchanged. The above operation is repeated to replace the filter sand frames 10. This structure can replace another set of filter sand frames 10 while filtering sand, reducing the downtime of the equipment. This device can easily replace the filter sand frames 10 without long-term downtime operation, saving the time of replacing the filter sand frames 10, thereby improving the efficiency of oil extraction sand filtering. It can also ensure that the angle of rotation of the turntable 8 is constant each time, ensuring that the filter sand frames 10 are accurately switched to the working position, avoiding oil leakage or affecting the filtration effect due to inaccurate positioning.

[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A sand screen for oil recovery comprising: The sand filter box (1) is characterized in that the lower surface of the sand filter box (1) is fixedly connected with a gas cylinder (2), the output end of the gas cylinder (2) is fixedly connected with a rack (3), the lower surface of the sand filter box (1) is fixedly connected with a fixed frame (4), the bottom inner wall of the fixed frame (4) is fixedly connected with a bearing (5), the inner surface of the bearing (5) is fixedly connected with a rotating shaft (6), the side surface of the rotating shaft (6) is rotatably connected with the sand filter box (1), the side surface of the rotating shaft (6) is fixedly connected with a gear (7), the side surface of the gear (7) is meshedly connected with the rack (3), the upper surface of the rotating shaft (6) is fixedly connected with a fixed plate (15), the upper surface of the fixed plate (15) is fixedly connected with a rotating disc (8), the side surface of the rotating disc (8) is rotatably connected with the sand filter box (1), the inside of the rotating disc (8) is provided with a placing groove (9), the inner surface of the placing groove (9) is provided with a sand filtering frame (10), the rear surface of the rack (3) is fixedly connected with a moving plate (16), the lower surface of the sand filter box (1) is fixedly connected with a first limiting block (17), and the lower surface of the sand filter box (1) is fixedly connected with a second limiting block (18).

2. A sand filter for oil production according to claim 1, characterized in that The side surface of the sand filtering frame (10) is fixedly connected with an insertion block (11), the inside of the rotating disc (8) is provided with an insertion groove (12), and the inner surface of the insertion groove (12) is slidably connected with the insertion block (11).

3. The sand filter apparatus of claim 1, wherein: The upper surface of the sand filtering frame (10) is fixedly connected with a handle (13), and the inside of the sand filtering frame (10) is provided with a sand filtering hole (14).

4. The sand filter of claim 1, wherein, The number of the sand filtering frames (10) of the placing groove (9) is two and is distributed on the left and right, and the lower surface of the sand filter box (1) is fixedly connected with a supporting column (21).

5. The sand filter apparatus of claim 1, wherein, The inside of the sand filter box (1) is provided with an opening (19), and the inner surface of the opening (19) is fixedly connected with a feeding pipe (20).

6. The sand filter apparatus of claim 1, wherein, The lower surface of the sand filter box (1) is fixedly connected with a discharging pipe (22), and the inside of the discharging pipe (22) is provided with a valve.

7. The sand filter apparatus of claim 1, wherein, The upper surface of the sand filter box (1) is provided with a cover plate (23), the side surface of the cover plate (23) is fixedly connected with a first connecting block (24), and the side surface of the sand filter box (1) is fixedly connected with a second connecting block (25).

8. A sand filter apparatus for oil production according to claim 7, wherein, The inside of the first connecting block (24) is threadedly connected with a bolt (26), and the side surface of the bolt (26) is threadedly connected with the second connecting block (25).

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