A filtration system for a sump

Abstract

The utility model discloses a kind of circulating systems of filter oil groove, belong to filtration technical field.A kind of circulating systems of filter oil groove, including the outer tube with mesh, further including dismounting and setting top cover and bottom cover at the both ends of the outer tube, the filter screen of annular structure is arranged in the outer tube, filter membrane is sleeved on the outer wall of filter screen, the filter membrane is between outer tube and filter screen, and the both ends of filter screen and filter membrane are respectively abutted with the inner wall of top cover and bottom cover;The utility model is provided with filter screen in the outer tube, filter membrane is set between outer tube and filter screen, after oil liquid is primarily filtered, it can also be fine filtered, and filter membrane is coaxially arranged on the outside of filter screen, can reduce overall volume, reduce occupied space, improve use effect.

Description

Technical Field

[0001] This utility model relates to the field of filtration technology, and in particular to a circulation system for a filter oil tank. Background Technology

[0002] Oil filter tanks are key equipment in industrial lubrication and hydraulic systems, used to store, filter, and circulate fluids (such as lubricating oil and hydraulic oil). By removing contaminants such as metal particles, dust, and moisture, they maintain the cleanliness and performance of the oil, thereby extending equipment life. Their core circulation system combines filtration, cooling, and homogenization functions: multi-stage filter elements (coarse filter + fine filter) progressively intercept impurities, and combined with air-cooling or water-cooling devices, the oil temperature is controlled (typically 40-60℃) to prevent oil oxidation. Simultaneously, the circulating flow prevents oil sedimentation and stratification, reducing equipment friction and wear, and component jamming, significantly lowering oil change frequency and maintenance costs.

[0003] The main working process of the circulation system is as follows: the oil pump draws oil containing impurities from the oil tank. The oil first passes through the primary filter to remove larger particles, and then enters the fine filter for more detailed filtration to remove tiny particles, ensuring that the oil meets the usage requirements. If necessary, the oil temperature is adjusted to a suitable range by cooling or heating devices. The purified oil returns to the oil tank through the return oil pipe, completing one circulation cycle.

[0004] Filtration is a crucial step in the circulation process. Currently used filter cartridges are generally single-stage filters. To achieve multi-stage filtration, coarse and fine filters need to be connected in series, resulting in a larger overall size, occupying more space, and affecting its layout in the entire system. Utility Model Content

[0005] The purpose of this invention is to solve the problem that existing filter elements have a single function, usually single-stage filtration, and require coarse and fine filters to be connected in series in multi-stage filtration, resulting in a large overall size. Therefore, this invention proposes a circulation system for a filter oil tank.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A circulation system for a filter oil tank includes an outer cylinder with a mesh, and a top cover and a bottom cover that are detachably disposed at both ends of the outer cylinder. A filter screen with an annular structure is disposed inside the outer cylinder. A filter membrane is sleeved on the outer wall of the filter screen. The filter membrane is located between the outer cylinder and the filter screen, and both ends of the filter screen and the filter membrane abut against the inner walls of the top cover and the bottom cover, respectively.

[0007] To facilitate the disassembly and connection of the top cover and bottom cover with the outer cylinder, preferably, the top cover has a first annular groove, the bottom cover has a second annular groove, and the outer walls at both ends of the outer cylinder are threaded to the inner walls of one side of the first annular groove and the second annular groove, respectively.

[0008] In order to limit the position of the filter screen and filter membrane, the two ends of the filter screen and filter membrane extend into the first annular groove and the second annular groove respectively, and the inner wall of the filter screen abuts against the inner wall of the other side of the first annular groove and the second annular groove respectively.

[0009] In order to fix the filter membrane, a fixing plate is fixedly provided at both ends of the filter membrane. The end face of the fixing plate away from the filter membrane abuts against the bottom of the first annular groove and the second annular groove, respectively, and the ends of the outer cylinder and the filter screen abut against the inner wall of the fixing plate, respectively.

[0010] Preferably, an oil inlet pipe is coaxially fixedly provided on the top of the top cover, and the output end of the oil inlet pipe is connected to the inside of the filter screen.

[0011] Furthermore, a fixed cylinder is coaxially fixed inside the top cover. The fixed cylinder is located inside the filter screen. The side wall of the fixed cylinder has multiple through grooves that are evenly distributed in a circle. The output end of the oil inlet pipe is connected to the input end of the fixed cylinder.

[0012] Compared with the prior art, this utility model provides a circulation system for a filter oil tank, which has the following beneficial effects: 1. The circulation system of this oil filter tank, by setting a filter screen inside the outer cylinder and a filter membrane between the outer cylinder and the filter screen, can perform fine filtration on the oil after preliminary filtration. Moreover, the filter membrane is coaxially set on the outside of the filter screen, which can reduce the overall volume, reduce the space occupied, and improve the use effect. 2. The circulation system of this filter oil tank is easy to install and disassemble and is reliably fixed by connecting the top cover and bottom cover to the outer cylinder with threads. This facilitates the cleaning or replacement of the internal filter screen and filter membrane, improving the performance.

[0013] The parts of this device not mentioned herein are the same as or can be implemented using existing technologies. This utility model provides a filter screen inside the outer cylinder and a filter membrane between the outer cylinder and the filter screen. After the oil is initially filtered, it can also be finely filtered. Moreover, the filter membrane is coaxially arranged outside the filter screen, which can reduce the overall volume, reduce the space occupied, and improve the performance. Attached Figure Description

[0014] Figure 1 This invention provides a schematic diagram of the structure of a circulation system for a filter oil tank. Figure 1 ; Figure 2 This invention provides a schematic diagram of the structure of a circulation system for a filter oil tank. Figure 2 ; Figure 3 This is a cross-sectional view of a circulation system for a filter oil tank proposed in this utility model. Figure 4This is a schematic diagram of the structure of the filter membrane in the circulation system of the oil filtration tank proposed in this utility model.

[0015] In the diagram: 1. Outer cylinder; 101. Filter screen; 2. Top cover; 201. Oil inlet pipe; 202. Fixed cylinder; 203. Through groove; 204. First annular groove; 3. Bottom cover; 301. Second annular groove; 4. Filter membrane; 401. Fixed plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0018] Example: Reference Figures 1-4 A circulating system for a filtered oil tank includes an outer cylinder 1 with a mesh, the outer cylinder 1 having a rotating annular structure and open at both ends. It also includes a top cover 2 and a bottom cover 3, detachably installed at both ends of the outer cylinder 1. A ring-shaped filter screen 101, made of stainless steel, is installed inside the outer cylinder 1 for preliminary oil filtration. A filter membrane 4, preferably a PTFE membrane filter element, is fitted onto the outer wall of the filter screen 101 for fine filtration. The filter membrane 4 is located between the outer cylinder 1 and the filter screen 101, with both ends of the filter screen 101 and the filter membrane 4 abutting against the inner walls of the top cover 2 and the bottom cover 3, respectively, thus fixing the filter membrane 4 and the filter screen 101. In use, by installing the filter screen 101 inside the outer cylinder 1 and the filter membrane 4 between the outer cylinder 1 and the filter screen 101, fine filtration can be performed on the oil after preliminary filtration. Furthermore, the filter membrane 4 is coaxially positioned outside the filter screen 101, reducing the overall volume, minimizing space occupation, and improving the performance.

[0019] Reference Figure 2 and Figure 3A first annular groove 204 is provided in the top cover 2, and a second annular groove 301 is provided in the bottom cover 3. The outer walls of both ends of the outer cylinder 1 are threaded to the inner walls of one side of the first annular groove 204 and the second annular groove 301, respectively. In use, the top cover 2 and the bottom cover 3 are threaded onto the outer cylinder 1, which makes it easy to install and disassemble, and the fixing is reliable. This facilitates the cleaning or replacement of the internal filter screen 101 and filter membrane 4, thereby improving the performance.

[0020] Reference Figure 3 By extending both ends of the filter screen 101 and the filter membrane 4 into the first annular groove 204 and the second annular groove 301 respectively, and with the inner wall of the filter screen 101 abutting against the inner wall of the other side of the first annular groove 204 and the second annular groove 301 respectively, the filter screen 101 can be limited. In use, by extending both ends of the filter screen 101 and the filter membrane 4 into the first annular groove 204 and the second annular groove 301 respectively, the filter screen 101 and the filter membrane 4 can be limited and their movement can be reduced.

[0021] Reference Figures 2-4 Fixing plates 401 are fixedly installed at both ends of the filter membrane 4. The end faces of the fixing plates 401 away from the filter membrane 4 abut against the bottom of the first annular groove 204 and the second annular groove 301, respectively. The ends of the outer cylinder 1 and the filter screen 101 abut against the inner wall of the fixing plates 401, respectively. In use, by fixing the fixing plates 401 at both ends of the filter membrane 4, and with the fixing plates 401 located in the first annular groove 204 and the second annular groove 301, the filter membrane 4 can be limited. Furthermore, by having both ends of the outer cylinder 1 and the filter screen 101 abut against the fixing plates 401, the filter membrane 4 can be kept in an extended state, thus improving the performance.

[0022] Reference Figures 1-3 An oil inlet pipe 201 is coaxially fixed on the top of the top cover 2. The outer wall of the oil inlet pipe 201 is threaded to facilitate connection with the oil delivery pipe. The output end of the oil inlet pipe 201 is connected to the inside of the filter screen 101. In use, the oil can enter the filter screen 101 through the oil inlet pipe 201 fixed on the top cover 2. After being filtered and intercepted by the filter screen 101 and the filter membrane 4, it flows out from the mesh of the outer cylinder 1, thus achieving the filtration effect.

[0023] Reference Figure 2 and Figure 3A fixed cylinder 202 is coaxially fixed inside the top cover 2. The fixed cylinder 202 is located inside the filter screen 101. Multiple circumferentially distributed through grooves 203 are opened on the side wall of the fixed cylinder 202. There are two to ten through grooves 203. Here, we prefer eight. The output end of the oil inlet pipe 201 is connected to the input end of the fixed cylinder 202. In use, because the fixed cylinder 202 is fixedly installed inside the top cover 2, and a baffle is fixedly installed at the end of the fixed cylinder 202 away from the top cover 2, and through grooves 203 are opened on the side wall of the fixed cylinder 202, the oil can enter the fixed cylinder 202 through the oil inlet pipe 201 and then flow out from the through grooves 203. At this time, the impact of the oil on the bottom cover 3 can be reduced, the phenomenon of the bottom cover 3 falling off can be reduced, and the use effect can be improved.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A circulation system for a filtered oil tank, comprising an outer cylinder (1) with a mesh, characterized in that, It also includes the disassembly of the top cover (2) and bottom cover (3) located at both ends of the outer cylinder (1). The outer cylinder (1) is provided with a filter screen (101) in a ring structure. The outer wall of the filter screen (101) is fitted with a filter membrane (4). The filter membrane (4) is located between the outer cylinder (1) and the filter screen (101), and the two ends of the filter screen (101) and the filter membrane (4) abut against the inner walls of the top cover (2) and the bottom cover (3), respectively.

2. The circulation system for a filter oil tank according to claim 1, characterized in that, The top cover (2) has a first annular groove (204) and the bottom cover (3) has a second annular groove (301). The outer walls of both ends of the outer cylinder (1) are threaded to the inner walls of one side of the first annular groove (204) and the second annular groove (301), respectively.

3. The circulation system for a filter oil tank according to claim 2, characterized in that, The filter screen (101) and filter membrane (4) extend into the first annular groove (204) and the second annular groove (301) at both ends, respectively, and the inner wall of the filter screen (101) abuts against the inner wall of the other side of the first annular groove (204) and the second annular groove (301).

4. The circulation system for a filter oil tank according to claim 3, characterized in that, The filter membrane (4) is fixedly provided with a fixing plate (401) at both ends. The end face of the fixing plate (401) away from the filter membrane (4) abuts against the bottom of the first annular groove (204) and the second annular groove (301) respectively. The outer cylinder (1) and the filter screen (101) abut against the inner wall of the fixing plate (401) respectively.

5. The circulation system for a filter oil tank according to claim 1, characterized in that, The top cover (2) is coaxially fixed with an oil inlet pipe (201), and the output end of the oil inlet pipe (201) is connected to the inside of the filter screen (101).

6. The circulation system for a filter oil tank according to claim 5, characterized in that, A fixed cylinder (202) is coaxially fixed inside the top cover (2). The fixed cylinder (202) is located inside the filter screen (101). The side wall of the fixed cylinder (202) is provided with multiple through grooves (203) that are evenly distributed in a circle. The output end of the oil inlet pipe (201) is connected to the input end of the fixed cylinder (202).

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