An efficient filter for oil production

Abstract

This utility model discloses a high-efficiency filter for oil extraction, comprising an outer barrel, an inner barrel coaxial with the outer barrel, an annular plate fixedly mounted on the outer side of the bottom end of the inner barrel, the annular plate having several through holes penetrating its upper and lower ends, a settling groove inside the bottom end of the outer barrel, the through holes communicating with the settling groove, an annular cavity between the inner wall of the outer barrel and the outer wall of the inner barrel, several annular baffles inside the annular cavity, a filter ring mesh above the annular baffles inside the annular cavity, the filter ring mesh being fixedly connected to the inner barrel, a coalescing filter plate fixedly mounted inside the inner barrel, the coalescing filter plate dividing the interior of the inner barrel into a first chamber and a second chamber, several openings on one side of the top of the inner barrel communicating with the first chamber and located above the filter ring mesh, and an oil inlet communicating with the annular cavity on one side of the outer barrel, the oil inlet being located between the annular baffles and the annular plate. This invention can achieve high-efficiency filtration of oil.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a high-efficiency filter for oil extraction. Background Technology

[0002] Oil in oil wells contains a large number of impurities. During the extraction and transportation of oil, it is often necessary to filter out the solid impurities contained in the material to prevent them from entering the equipment and causing damage or blockage to the equipment and pipes, thereby protecting the safety and service life of the relevant equipment.

[0003] Most current filters allow oil to flow into the filter from the top, and the filter has an internal filter screen to filter solid impurities. However, under the pressure of the oil, some impurities are forced down through the gaps in the filter screen, reducing the filtration efficiency. Utility Model Content

[0004] The purpose of this application is to provide a high-efficiency filter for oil extraction to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: a high-efficiency oil extraction filter, comprising an outer barrel, an inner barrel coaxial with the outer barrel, an annular plate fixedly mounted on the outer side of the bottom end of the inner barrel, a plurality of through holes penetrating its upper and lower ends on the annular plate, a settling groove inside the bottom end of the outer barrel, the through holes communicating with the settling groove, an annular cavity between the inner wall of the outer barrel and the outer wall of the inner barrel, a plurality of alternately distributed annular baffles inside the annular cavity, a filter ring mesh above the annular baffles inside the annular cavity, the filter ring mesh being fixedly connected to the inner barrel, a coalescing filter plate fixedly mounted inside the inner barrel, the coalescing filter plate dividing the interior of the inner barrel into a first chamber and a second chamber, a plurality of openings on one side of the top end of the inner barrel, the openings communicating with the first chamber, the openings being above the filter ring mesh, an oil inlet communicating with the annular cavity on one side of the outer barrel, the oil inlet being located between the annular baffles and the annular plate.

[0006] Preferably, a first pipe is fixedly installed at the bottom end of the inner barrel, and the first pipe communicates with the first chamber. Preferably, a second pipe is fixedly installed at the bottom end of the inner barrel, and the second pipe communicates with the second chamber. Preferably, a third pipe is fixedly installed on one side of the bottom end of the outer barrel, and the third pipe communicates with the interior of the settling tank.

[0007] Preferably, the front side of the outer barrel is provided with a fourth pipe that leads into the annular cavity, and the fourth pipe is located between the filter ring and the annular plate.

[0008] In summary, the technical effects and advantages of this utility model are as follows:

[0009] In this invention, a bottom-up filtration method is adopted to reduce the impact of oil pressure on filtration. The oil enters the annular cavity from the inlet, and heavier silt settles at the annular plate. The silt settles into the settling tank through the through holes. Alternating annular baffles reduce the rise of impurities and silt. Large suspended particles are intercepted by the filter ring network. Then, the oil enters the first chamber of the inner barrel from the opening. The coalescing filter plate intercepts water and small suspended impurities in the first chamber, and the oil enters the second chamber, thus achieving reliable filtration. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of a high-efficiency filter for oil extraction in an embodiment of this application;

[0012] Figure 2 This is a schematic diagram of an annular baffle structure of a high-efficiency oil extraction filter according to an embodiment of this application.

[0013] In the diagram: 1. Outer barrel; 2. Inner barrel; 3. Annular plate; 4. Through hole; 5. Settling tank; 6. Oil inlet; 7. Annular baffle; 8. Filter ring; 9. Opening; 10. Coalescing filter plate; 11. First chamber; 12. Second chamber; 13. First pipe; 14. Second pipe; 15. Third pipe. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] It should also be noted that all standard parts used in this application are commercially available, and can be custom-made according to the description and drawings. Unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances, and unless explicitly limited, machinery, parts, and equipment can all adopt conventional models in the prior art.

[0017] In this document, the term "comprising" is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0018] Example: Reference Figure 1-2The diagram shows a high-efficiency oil extraction filter, comprising an outer barrel 1, an inner barrel 2 coaxial with the outer barrel 1, an annular plate 3 fixedly mounted on the outer side of the bottom end of the inner barrel 2, the annular plate 3 having several through holes 4 penetrating its upper and lower ends, a settling groove 5 inside the bottom end of the outer barrel 1, the through holes 4 communicating with the settling groove 5, an annular cavity between the inner wall of the outer barrel 1 and the outer wall of the inner barrel 2, a plurality of alternately distributed annular baffles 7 inside the annular cavity, a filter ring mesh 8 above the annular baffles 7 inside the annular cavity, the filter ring mesh 8 being fixedly connected to the inner barrel 2, and a coalescing filter plate 10 fixedly mounted inside the inner barrel 2, the coalescing filter plate 10 dividing the interior of the inner barrel 2 into a first chamber 11 and a second chamber 12. The inner barrel 2 has two chambers 12. Several openings 9 are provided on one side of the top of the inner barrel 2, and these openings 9 communicate with the first chamber 11. The openings 9 are located above the filter ring 8. An oil inlet 6, communicating with the annular cavity, is provided on one side of the outer barrel 1. The oil inlet 6 is located between the annular baffle 7 and the annular plate 3. A bottom-up filtration method is used to reduce the impact of oil pressure on filtration. Oil enters the annular cavity through the oil inlet. Heavier sediment settles at the annular plate and then settles into the settling tank through the through-holes. Alternating annular baffles reduce the rise of impurities and sediment. Large suspended particles are intercepted by the filter ring. Then, oil enters the first chamber of the inner barrel through the openings. The coalescing filter plate intercepts water and small suspended impurities in the first chamber, and the oil enters the second chamber, thus achieving reliable filtration.

[0019] With the above structure: a first pipe 13 is fixedly installed at the bottom of the inner barrel 2. The first pipe 13 is connected to the first chamber 11. A valve is installed on the first pipe to filter out the internal water and impurities.

[0020] With the above structure: a second pipe 14 is fixedly installed at the bottom of the inner barrel 2. The second pipe 14 is connected to the second chamber 12. A valve is installed on the second pipe to filter and discharge the oil.

[0021] With the above structure: a third pipe 15 is fixedly installed on one side of the bottom of the outer barrel 1. The third pipe 15 is internally connected to the settling tank 5. A valve is installed on the third pipe, and the third pipe discharges the sludge.

[0022] With the above structure: the front side of the outer barrel 1 is provided with a fourth pipe that enters into the annular cavity. The fourth pipe is located between the filter ring 8 and the annular plate 3, and large particulate suspended matter is discharged through the fourth pipe.

[0023] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency filter for oil extraction, comprising an outer barrel (1), characterized in that: The outer barrel (1) has an inner barrel (2) coaxial with it. An annular plate (3) is fixedly installed on the outer side of the bottom end of the inner barrel (2). The annular plate (3) has several through holes (4) penetrating its upper and lower ends. The bottom end of the outer barrel (1) has a settling groove (5). The through holes (4) are connected to the settling groove (5). An annular cavity is provided between the inner wall of the outer barrel (1) and the outer wall of the inner barrel (2). Several alternately distributed annular baffles (7) are provided in the annular cavity. A filter ring (8) is provided above the annular baffles (7) inside the annular cavity. The filter ring (8) is fixedly connected to the inner barrel (2). A coalescing filter plate (10) is fixedly installed inside the inner barrel (2). The coalescing filter plate (10) divides the inner barrel (2) into a first chamber (11) and a second chamber (12). A number of openings (9) are provided on one side of the top of the inner barrel (2). The openings (9) are connected to the first chamber (11). The openings (9) are located above the filter ring (8). An oil inlet (6) is provided on one side of the outer barrel (1) and is connected to the annular cavity. The oil inlet (6) is located between the annular baffle (7) and the annular plate (3).

2. The high-efficiency filter for oil extraction according to claim 1, characterized in that: The bottom end of the inner barrel (2) is fixedly installed with a first pipe (13), which is connected to the first chamber (11).

3. The high-efficiency filter for oil extraction according to claim 1, characterized in that: The bottom end of the inner barrel (2) is fixedly installed with a second pipe (14), which is connected to the second chamber (12).

4. The high-efficiency filter for oil extraction according to claim 1, characterized in that: A third pipe (15) is fixedly installed on one side of the bottom of the outer barrel (1), and the third pipe (15) is internally connected to the settling tank (5).

5. The high-efficiency filter for oil extraction according to claim 1, characterized in that: The front side of the outer barrel (1) is provided with a fourth pipe that leads into the annular cavity. The fourth pipe is located between the filter ring (8) and the annular plate (3).

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