Oil exploitation filter

Abstract

The utility model discloses an oil exploitation filter which comprises a filter barrel and further comprises a preceding-stage filter, the preceding-stage filter is arranged on the filter barrel in a communicated mode, the preceding-stage filter comprises an outer barrel, a first-stage filter structure, a second-stage filter structure and a third-stage filter structure, the first-stage filter structure is arranged on the outer barrel in a penetrating mode, and the second-stage filter structure is arranged on the third-stage filter structure in a penetrating mode. The second-stage filtering structure is arranged in the outer barrel and is close to the first-stage filtering structure, the third-stage filtering structure is arranged on the outer barrel and is close to the second-stage filtering structure, the first-stage filtering structure comprises a feeding pipe, a filtering cylinder and a collecting assembly, the feeding pipe is arranged on the outer barrel in a penetrating mode, the filtering cylinder is arranged on the outer barrel and is communicated with the feeding pipe, and the collecting assembly is arranged on the outer barrel. And the collecting assembly is arranged on the filter cartridge in a communicating manner. The utility model relates to the field of oil filter design, in particular to an oil exploitation filter.

Description

Technical Field

[0001] The utility model relates to the field of petroleum filter design, in particular to a petroleum mining filter. Background Art

[0002] Petroleum is a viscous, dark brown liquid. Petroleum is stored in some areas of the upper crust. Its main components are a mixture of various alkanes, cycloalkanes, and aromatic hydrocarbons. It is one of the main objects of geological exploration.

[0003] During the mining process, there will be a lot of impurities in crude oil that need to be processed. Most of them are gravel, clay, fine iron filings and salts. Due to different mining locations and machinery, some mining contains a lot of impurities. If you only use a formed filter barrel, the filter may be frequently blocked, or the location where the impurities are collected may accumulate and affect the filtration. You can consider filtering the impurities in a graded and layered manner to reduce the risk of blockage. Utility Model Content

[0004] The technical problem to be solved by the utility model is to solve the problem that a single filter barrel is easily blocked.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is as follows: The utility model is an oil extraction filter, including a filter barrel and a front-stage filter, the front-stage filter is connected and arranged on the filter barrel, the front-stage filter includes an outer barrel, a first-stage filter structure, a second-stage filter structure and a third-stage filter structure, the first-stage filter structure is arranged on the outer barrel, the second-stage filter structure is arranged in the outer barrel and close to the first-stage filter structure, the third-stage filter structure is arranged on the outer barrel and close to the second-stage filter structure, the first-stage filter structure includes a feed pipe, a filter cartridge and a collecting assembly, the feed pipe is arranged on the outer barrel, the filter cartridge is arranged on the outer barrel and connected with the feed pipe, and the collecting assembly is connected and arranged on the filter cartridge.

[0006] Furthermore, the outer barrel is arranged in a hexagonal column structure.

[0007] Furthermore, the collecting assembly includes a collecting hopper, a switch valve and a bottom cover. The collecting hopper is connected to the filter cartridge and passes through the bottom of the outer barrel. The switch valve is arranged at the lower part of the collecting hopper. The bottom cover is threadedly connected to the bottom of the collecting hopper.

[0008] Furthermore, the second-stage filtering structure includes a central filter screen, a central collecting tank, a central feed pipe and a central bottom cover, wherein the central filter screen is arranged on the outer barrel, the central collecting tank is arranged at the bottom of the outer barrel and is close to the central filter screen, the central feed pipe is arranged on the outer barrel and is connected with the central collecting tank, and the central bottom cover is threadedly connected to the central feed pipe.

[0009] Furthermore, the third-stage filtration structure includes a final-stage filter screen, a final-stage collecting tank, a final-stage discharge pipe and a final-stage bottom cover, the final-stage filter screen is arranged on the outer barrel, the final-stage collecting tank is arranged at the bottom of the outer barrel and close to the final-stage filter screen, the final-stage discharge pipe is arranged on the outer barrel and is connected with the final-stage collecting tank, and the final-stage bottom cover is threadedly connected to the final-stage discharge pipe.

[0010] Furthermore, the mesh diameter of the filter cartridge, the mesh diameter of the middle filter screen, and the mesh diameter of the final filter screen become smaller in sequence.

[0011] Furthermore, a plurality of mounting brackets are symmetrically arranged on the outer barrel.

[0012] The beneficial effects achieved by the utility model using the above structure are as follows:

[0013] 1. The pre-filter is combined with the filter barrel to complete the impurity filtration in stages and layers, which can disperse the filtration and collection positions of impurities and reduce the risk of frequent clogging of the filter.

[0014] 2. The design of the filtering structure at each level is combined with the change of the outer barrel shape to facilitate the collection and discharge of impurities, and the horizontal design reduces the risk of impurities clogging the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an oil production filter proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of a front filter in a petroleum extraction filter proposed by the utility model;

[0017] Figure 3 This is a cross-sectional view of an outer barrel of an oil production filter proposed by the utility model;

[0018] Figure 4 This is a cross-sectional view of the outer barrel of an oil production filter proposed by the utility model from another angle.

[0019] Among them, 1. filter barrel, 2. front filter, 3. outer barrel, 4. first-stage filter structure, 5. second-stage filter structure, 6. third-stage filter structure, 7. feed pipe, 8. filter cartridge, 9. collection assembly, 10. collection bucket, 11. switch valve, 12. bottom cover, 13. middle filter net, 14. middle collection tank, 15. middle discharge pipe, 16. middle bottom cover, 17. final filter net, 18. final collection tank, 19. final discharge pipe, 20. final bottom cover, 21. mounting frame. DETAILED DESCRIPTION

[0020] like Figure 1 to Figure 4As shown, the utility model is an oil production filter, including a filter barrel 1, and also including a front-stage filter 2, the front-stage filter 2 is connected and arranged on the filter barrel 1, the front-stage filter 2 includes an outer barrel 3, a first-stage filter structure 4, a second-stage filter structure 5 and a third-stage filter structure 6, the first-stage filter structure 4 is arranged on the outer barrel 3, the second-stage filter structure 5 is arranged in the outer barrel 3 and close to the first-stage filter structure 4, the third-stage filter structure 6 is arranged on the outer barrel 3 and close to the second-stage filter structure 5, the first-stage filter structure 4 includes a feed pipe 7, a filter cartridge 8 and a collecting component 9, the feed pipe 7 is arranged on the outer barrel 3, the filter cartridge 8 is arranged on the outer barrel 3 and is connected with the feed pipe 7, the collecting component 9 is connected and arranged on the filter cartridge 8, and the outer barrel 3 is arranged in a hexagonal column structure to facilitate impurity collection.

[0021] The collecting assembly 9 includes a collecting hopper 10, a switch valve 11 and a bottom cover 12. The collecting hopper 10 is connected to the filter cartridge 8 and passes through the bottom of the outer barrel 3. The switch valve 11 is arranged at the lower part of the collecting hopper 10. The bottom cover 12 is threadedly connected to the bottom of the collecting hopper 10.

[0022] The second-stage filtering structure 5 includes a middle filter screen 13, a middle collecting tank 14, a middle feed pipe 15 and a middle bottom cover 16. The middle filter screen 13 is arranged on the outer barrel 3, the middle collecting tank 14 is arranged at the bottom of the outer barrel 3 and is close to the middle filter screen 13, the middle feed pipe 15 is arranged on the outer barrel 3 and is connected with the middle collecting tank 14, and the middle bottom cover 16 is threadedly connected to the middle feed pipe 15.

[0023] The third-stage filtering structure 6 includes a final-stage filter screen 17, a final-stage collecting tank 18, a final-stage discharge pipe 19 and a final-stage bottom cover 20. The final-stage filter screen 17 is arranged on the outer barrel 3, the final-stage collecting tank 18 is arranged at the bottom of the outer barrel 3 and is close to the final-stage filter screen 17, the final-stage discharge pipe 19 is arranged on the outer barrel 3 and is connected with the final-stage collecting tank 18, and the final-stage bottom cover 20 is threadedly connected to the final-stage discharge pipe 19. Impurities can be discharged by opening each bottom cover.

[0024] The mesh diameters of the filter cartridge 8 , the mesh diameters of the middle filter screen 13 , and the mesh diameters of the final filter screen 17 become smaller in sequence to achieve graded and layered filtration. A plurality of mounting frames 21 are symmetrically provided on the outer barrel 3 .

[0025] When in use, crude oil is fed through the feed pipe 7, and larger impurities are blocked by the filter cartridge 8. Other crude oil and small impurities pass through the filter cartridge 8. Due to gravity, the impurities are gradually deposited at the bottom of the collecting bucket 10. Medium-sized impurities are blocked by the middle filter screen 13. Due to their own gravity, they fall and are gradually gathered in the middle discharge pipe 15 by the design of the hexagonal outer barrel 3. The final filter screen 17 and other components are also in the same steps. Then the crude oil enters the filter barrel 1 to filter micro impurities and is discharged after completion.

[0026] It should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A petroleum extraction filter, comprising a filter barrel, characterized in that: It also includes a front-stage filter, which is connected and arranged on the filter barrel. The front-stage filter includes an outer barrel, a first-stage filter structure, a second-stage filter structure and a third-stage filter structure. The first-stage filter structure is arranged on the outer barrel, the second-stage filter structure is arranged in the outer barrel and close to the first-stage filter structure, the third-stage filter structure is arranged on the outer barrel and close to the second-stage filter structure, the first-stage filter structure includes a feed pipe, a filter cartridge and a collection assembly, the feed pipe is arranged on the outer barrel, the filter cartridge is arranged on the outer barrel and connected with the feed pipe, and the collection assembly is connected and arranged on the filter cartridge.

2. The oil production filter according to claim 1, characterized in that: The outer barrel is arranged in a hexagonal column structure.

3. The oil production filter according to claim 1, characterized in that: The collecting assembly comprises a collecting hopper, a switch valve and a bottom cover. The collecting hopper is connected to the filter cartridge and passes through the bottom of the outer barrel. The switch valve is arranged at the lower part of the collecting hopper. The bottom cover is threadedly connected to the bottom of the collecting hopper.

4. The oil production filter according to claim 1, characterized in that: The second-stage filtering structure includes a central filter screen, a central collecting tank, a central feed pipe and a central bottom cover, wherein the central filter screen is arranged on the outer barrel, the central collecting tank is arranged at the bottom of the outer barrel and is close to the central filter screen, the central feed pipe is arranged on the outer barrel and is connected with the central collecting tank, and the central bottom cover is threadedly connected to the central feed pipe.

5. The oil production filter according to claim 1, characterized in that: The third-stage filtering structure includes a final-stage filter screen, a final-stage collecting tank, a final-stage discharge pipe and a final-stage bottom cover. The final-stage filter screen is arranged on the outer barrel, the final-stage collecting tank is arranged at the bottom of the outer barrel and is close to the final-stage filter screen, the final-stage discharge pipe is arranged on the outer barrel and is connected with the final-stage collecting tank, and the final-stage bottom cover is threadedly connected to the final-stage discharge pipe.

6. The oil production filter according to claim 1, characterized in that: The mesh diameter of the filter cartridge, the mesh diameter of the middle filter screen, and the mesh diameter of the final filter screen become smaller in sequence.

7. The oil production filter according to claim 2, characterized in that: A plurality of mounting frames are symmetrically arranged on the outer barrel.

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