Pressurizing and filtering device for oil production

Abstract

The utility model discloses a pressure filtering device for oil production, which comprises a hollow cuboid filter shell with an opening at the top and a top cover fixedly mounted at the top of the filter shell, a liquid inlet pipe is arranged on the upper surface of the top cover, and a liquid outlet pipe penetrating towards the front side is horizontally arranged at a position close to the bottom in the filter shell. Connecting nozzles located in the filter shell are vertically arranged above the liquid outlet pipe at equal intervals in the axial direction, filter elements are vertically installed on the connecting nozzles in an inserted mode, acute angles are formed between the filter elements and the inner side wall of the filter shell, the filter elements are movably sleeved with filter cloth, and buckles clamped to the connecting nozzles are arranged at the bottoms of the filter elements. By arranging the filter cloth and the filter element which form the acute angle with the inner side wall of the filter shell, the area of the filter cloth and the area of the filter element are greatly increased, so that the contact area of lubricating oil related materials with the filter element and the filter cloth is increased, and the purpose of improving the filtering efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a pressure filtering device for oil production. Background Art

[0002] In the process of lubricating oil production, a variety of raw materials, intermediate products and final products need to be filtered and purified to remove insoluble matter in the middle. In order to improve the filtration efficiency, pressurization is often used. Therefore, a pressurized filtration device is used instead of a normal pressure filtration device. The box-type pressurized filter is a commonly used pressurized filtration device for oil production.

[0003] The box-type pressure filter filters lubricating oil-related materials through the rectangular filter cloth and filter element in the filter housing. At present, the filter cloth and filter element in the filter housing of most box-type pressure filters are arranged vertically and parallel to each other, and perpendicular to the side of the filter housing. The filtration efficiency of lubricating oil-related materials is related to the area of ​​the filter cloth and the filter element. Affected by the volume of the box-type pressure filter, the contact area between the lubricating oil-related materials and the filter cloth and the filter element is relatively limited, resulting in general filtration efficiency. In order to improve the filtration efficiency of lubricating oil-related materials, a new type of pressurized filtration device for oil production is proposed. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a pressurized filtration device for oil production, which is used to solve the problem of low filtration efficiency caused by the limited contact area between lubricating oil-related materials and the rectangular filter cloth and filter element in most current box-type pressurized filters.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A pressurized filtering device for oil production comprises a hollow rectangular filter housing with an opening at the top and a top cover fixedly mounted on the top of the filter housing, wherein a liquid inlet pipe is arranged on the upper surface of the top cover, a liquid outlet pipe penetrating toward the front is horizontally arranged at a position near the bottom of the filter housing, connecting nozzles located inside the filter housing are arranged equidistantly and vertically along the axial direction above the liquid outlet pipe, a filter element is vertically plugged and mounted on the connecting nozzle, the filter element and the inner side wall of the filter housing are arranged at an acute angle, a filter cloth is provided on a movable sleeve outside the filter element, and a buckle that is clamped on the connecting nozzle is arranged at the bottom of the filter element.

[0007] Preferably, a base is provided at the bottom of the filter housing, the front height of the base is smaller than the back height, and the front-to-back height difference of the base does not exceed 3CM.

[0008] Preferably, the liquid inlet pipe is located on the top cover near the back side.

[0009] Preferably, a waste pipe is provided at the bottom of the front side of the filter housing, and the waste pipe is located below the liquid outlet pipe.

[0010] Preferably, valves are installed on the liquid inlet pipe, liquid outlet pipe and waste discharge pipe.

[0011] Preferably, the diameter of the liquid inlet pipe is not smaller than the diameter of the liquid outlet pipe.

[0012] Preferably, a clamping seat for movably clamping the filter element and the filter cloth is fixedly connected to the lower surface of the top cover.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model greatly increases the area of ​​the filter cloth and the filter element by arranging filter cloth and filter element at an acute angle with the inner side wall of the filter housing, thereby increasing the contact area between the lubricating oil-related materials and the filter element and the filter cloth, thereby achieving the purpose of improving the filtration efficiency and solving the problem of low filtration efficiency caused by the limited contact area between the lubricating oil-related materials and the rectangular filter cloth and filter element in most current box-type pressure filters. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the filter housing of the utility model;

[0017] Figure 3 This is a top view of the internal structure of the filter housing of the utility model;

[0018] Figure 4 This is a side view structural schematic diagram of the utility model when the filter cloth is removed from the filter element.

[0019] In the figure: 1. filter housing; 2. top cover; 3. liquid inlet pipe; 4. liquid outlet pipe; 5. connecting nozzle; 6. filter element; 7. filter cloth; 8. buckle; 9. base; 10. waste pipe; 11. valve; 12. snap-fit ​​seat. DETAILED DESCRIPTION

[0020] The bottom will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-4As shown, the utility model provides a technical solution: a pressure filtering device for oil production, comprising a hollow rectangular parallelepiped filter housing 1 with an opening at the top and a top cover 2 fixedly mounted on the top of the filter housing 1, a liquid inlet pipe 3 is arranged on the upper surface of the top cover 2, the liquid inlet pipe 3 is located on the top cover 2 near the back, a liquid outlet pipe 4 penetrating to the front is horizontally arranged at a position near the bottom of the filter housing 1, a waste pipe 10 is arranged at the bottom of the front of the filter housing 1, the waste pipe 10 is located below the liquid outlet pipe 4, valves 11 are installed on the liquid inlet pipe 3, the liquid outlet pipe 4 and the waste pipe 10, and the diameter of the liquid inlet pipe 3 is not less than the diameter of the liquid outlet pipe 4;

[0022] A connection nozzle 5 located inside the filter housing 1 is vertically and equidistantly arranged above the liquid outlet pipe 4 along the axial direction, and a filter element 6 is vertically inserted and installed on the connection nozzle 5. The filter element 6 and the inner wall of the filter housing 1 are arranged at an acute angle to increase the filtering area. A filter cloth 7 is movably sleeved outside the filter element 6, and a buckle 8 that is clamped on the connection nozzle 5 is arranged at the bottom of the filter element 6;

[0023] A base 9 is provided at the bottom of the filter housing 1. The front height of the base 9 is smaller than the back height, and the front and rear height difference of the base 9 does not exceed 3CM. A clamping seat 12 for movably clamping the filter element 6 and the filter cloth 7 is fixedly connected to the lower surface of the top cover 2 to ensure the stability of the filter element 6.

[0024] Working principle: by setting the filter cloth 7 and the filter element 6 which are set at an acute angle with the inner wall of the filter housing 1, the area of ​​the filter cloth 7 and the filter element 6 in the filter housing 1 is greatly increased, the contact area between the lubricating oil related materials and the filter element 6 and the filter cloth 7 is increased, and the filtering efficiency is improved; close the valve 11 on the waste pipe 10, open the valves 11 on the inlet pipe 3 and the outlet pipe 4, the lubricating oil related materials enter the filter housing 1 through the inlet pipe 3, the lubricating oil related materials pass through the filter cloth 7, the filter element 6 and the connecting nozzle 5 in turn to enter the outlet pipe 4, the caliber of the inlet pipe 3 is larger than the caliber of the outlet pipe 4, which has a pressurizing effect, the filtered lubricating oil related materials are discharged from the outlet pipe 4, and the filter cloth 7 and the filter element 6 intercept the insoluble matter; when cleaning the insoluble matter, close the valves 11 on the inlet pipe 3 and the outlet pipe 4, open the valve 11 on the waste pipe 10, and discharge the insoluble matter through the waste pipe 10. When replacing or cleaning the filter cloth 7 and the filter element 6, pull them upwards to disassemble.

[0025] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure filtering device for oil production, comprising a hollow rectangular parallelepiped filter housing (1) with an opening at the top and a top cover (2) fixedly mounted on the top of the filter housing (1), characterized in that: The upper surface of the top cover (2) is provided with a liquid inlet pipe (3); a liquid outlet pipe (4) penetrating toward the front is horizontally provided at a position near the bottom of the filter housing (1); a connecting nozzle (5) located inside the filter housing (1) is vertically provided equidistantly along the axial direction above the liquid outlet pipe (4); a filter element (6) is vertically plugged and installed on the connecting nozzle (5); the filter element (6) and the inner side wall of the filter housing (1) are arranged at an acute angle; a filter cloth (7) is movably sleeved outside the filter element (6); and a buckle (8) is provided at the bottom of the filter element (6) to be clamped on the connecting nozzle (5).

2. The pressure filtering device for oil production according to claim 1, characterized in that: A base (9) is provided at the bottom of the filter housing (1); the front height of the base (9) is smaller than the back height, and the front-to-back height difference of the base (9) does not exceed 3 cm.

3. The pressure filtering device for oil production according to claim 1, characterized in that: The liquid inlet pipe (3) is located on the top cover (2) at a position close to the back side.

4. The pressure filtering device for oil production according to claim 1, characterized in that: A waste discharge pipe (10) is provided at the bottom of the front side of the filter housing (1), and the waste discharge pipe (10) is located below the liquid outlet pipe (4).

5. The pressure filtering device for oil production according to claim 4, characterized in that: Valves (11) are installed on the liquid inlet pipe (3), the liquid outlet pipe (4) and the waste discharge pipe (10).

6. The pressure filtering device for oil production according to claim 5, characterized in that: The caliber of the liquid inlet pipe (3) is not less than the caliber of the liquid outlet pipe (4).

7. The pressure filtering device for oil production according to claim 1, characterized in that: A clamping seat (12) for movably clamping the filter element (6) and the filter cloth (7) is fixedly connected to the lower surface of the top cover (2).

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