Filtering device for filling equipment for industrial oil

Abstract

The utility model discloses a filter equipment of oil storage filling equipment for industrial oil, including hollow filter casing, filter casing is equipped with rough filter subassembly, fine filter subassembly and adsorption subassembly in order along the industrial oil flow direction, and fixed component includes the fixed shaft that passes through bearing seat and is connected with filter casing, and rough filter subassembly includes at least one metal braided filter screen and first locking portion that fixes metal braided filter screen on fixed shaft, fine filter subassembly includes at least one high molecular microporous filter membrane that sets up the annular direction of fixed shaft and second locking portion that fixes high molecular microporous filter membrane on fixed shaft, and adsorption subassembly includes at least one active carbon fiber layer that sets up the vertical direction of fixed shaft and third locking portion that fixes active carbon fiber layer on fixed shaft, the utility model discloses through rough filter subassembly, fine filter subassembly, adsorption subassembly reaches the technical effect of promotion filtration efficiency, reduces the damage of blockage, enhances filtration precision, guarantees the technical effect of oil liquid purity.

Description

Technical Field

[0001] This utility model relates to the technical field of industrial oil filtration devices, and specifically to a filtration device for industrial oil storage and filling equipment. Background Technology

[0002] Industrial oil filtration devices, as equipment to ensure the purity of oil products, are widely used in the connection between oil storage tanks and filling equipment in industries such as petrochemicals and machinery manufacturing. In existing technologies, common industrial oil filtration devices mostly adopt single-layer or multi-layer planar filter structures, combined with adsorption layers to achieve the functions of impurity interception and pollutant adsorption, ensuring the stable transportation and preliminary purification of industrial oil from storage tanks to filling equipment. They are an indispensable key component in the industrial oil storage and transportation system, and have significant value in improving production efficiency and extending equipment service life.

[0003] However, with the increasing demands for industrial oil quality and the refinement of production conditions, existing filtration devices have shortcomings. Single-layer planar filters are prone to rapid clogging due to the accumulation of large particles of impurities, and single-layer filter membranes are prone to filtration efficiency degradation. At the same time, single fine filtration cannot meet the requirements of high-precision filtration. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a filtration device for industrial oil storage and filling equipment. The coarse filter assembly uses a metal woven mesh to extend the filtration path and increase the filtration area. Combined with the impact force of the buffer solution at the top and bottom of the first locking part, it solves the problems of easy clogging and incomplete filtration of large particles in single-layer planar filters. The fine filter assembly uses a double-layer polymer microporous membrane arranged at intervals to form a buffer chamber to eliminate turbulence, and the gap between it and the first isolation layer forms a flow channel, solving the problem of filtration efficiency degradation in single-layer membranes. The activated carbon fiber layers in the adsorption assembly maintain consistent gaps to facilitate the adsorption of pollutants, and this, combined with the secondary adsorption mechanism below the second isolation layer... The fine filter assembly solves the problem that single-pass fine filtration cannot meet high-precision requirements, achieving the technical effects of improving filtration efficiency, reducing clogging damage, enhancing filtration accuracy, and ensuring oil purity. The fixing shaft of the fixing assembly, in conjunction with various locking parts, secures the coarse filter, fine filter, and adsorption components. The inspection cover and the edge of the filter housing's inspection port are sealed with a sealing ring to prevent leakage. The internal thread of the oil inlet pipe is fixed to the oil outlet pipe of the oil storage tank, and the external thread of the oil outlet pipe is fixed to the oil inlet pipe of the filling equipment, ensuring quick and reliable connection with upstream and downstream equipment. This improves maintenance convenience, prevents leakage, ensures reliable connection, and guarantees the purity and safety of industrial oil storage and transportation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A filtration device for an industrial oil storage and filling equipment includes a hollow filter housing. An oil inlet pipe is located at the top of the filter housing, and an oil outlet pipe is located at the bottom. A coarse filter assembly, a fine filter assembly, and an adsorption assembly are sequentially arranged inside the filter housing along the industrial oil flow direction. The coarse filter assembly, fine filter assembly, and adsorption assembly are all connected to the inner wall of the filter housing via a fixing assembly. The fixing assembly includes a fixing shaft connected to the filter housing via a bearing seat, a first isolation layer fixed to the fixing shaft, and a second isolation layer located below the first isolation layer. The coarse filter assembly includes at least one layer of metal woven filter mesh and a first locking part that fixes the metal woven filter mesh to the fixing shaft. The fine filter assembly includes at least one polymer microporous filter membrane arranged circumferentially around the fixing shaft and a second locking part that fixes the polymer microporous filter membrane to the fixing shaft. The adsorption assembly includes at least one activated carbon fiber layer arranged vertically around the fixing shaft and a third locking part that fixes the activated carbon fiber layer to the fixing shaft.

[0006] The coarse filter assembly is located above the first isolation layer, with its upper end close to the oil inlet pipe.

[0007] The fine filter assembly is located below the first isolation layer, and the industrial oil flows into the fine filter assembly after passing through the coarse filter assembly.

[0008] The adsorption component is located between the fine filtration component and the second isolation layer.

[0009] The filter housing is provided with an openable inspection cover on the top, and the inspection cover is provided with a handle on the top. The handle is integrally formed with the inspection cover, and the inspection cover is sealed to the edge of the inspection port on the top of the filter housing by a sealing ring.

[0010] The inner wall of the oil inlet pipe is provided with internal threads, which can be fixed to the oil outlet pipe of the oil storage tank through threaded connection.

[0011] The outer wall of the oil outlet pipe is provided with external threads, which can be used to fix it to the pipe at the oil inlet end of the filling equipment through threaded connection.

[0012] The outer surface of the fixed shaft is provided with several positioning grooves.

[0013] The first isolation layer has a first flow-through hole for industrial oil flow.

[0014] The second isolation layer has a second flow-through hole for industrial oil flow.

[0015] The beneficial effects of this utility model are as follows: 1. The coarse filter assembly extends the filtration path and increases the filtration area of ​​industrial oil through its metal woven mesh. Combined with the impact force of the buffer fluid locked in by the upper and lower locking parts of the first locking part, it solves the problems of easy clogging of single-layer planar filter screens and incomplete filtration of large particles. The fine filter assembly's double-layer polymer microporous filter membranes are arranged at intervals to form a buffer chamber to eliminate turbulence. The gap between the membrane and the first isolation layer forms a flow channel, solving the problem of filtration efficiency decay of single-layer filter membranes. The activated carbon fiber layers of the adsorption assembly maintain consistent gaps to facilitate the adsorption of pollutants. Combined with the secondary fine filter assembly below the second isolation layer, it solves the problem that single fine filtration cannot meet the high precision requirements. The overall technical effects of improving filtration efficiency, reducing clogging damage, enhancing filtration accuracy, and ensuring oil purity are achieved. 2. The fixing shaft of the fixing component cooperates with each locking part to fix the coarse filter, fine filter and adsorption components; the inspection cover and the edge of the inspection port of the filter housing are sealed with sealing rings to prevent leakage; the internal thread of the oil inlet pipe is fixed to the oil outlet pipe of the oil storage tank, and the external thread of the oil outlet pipe is fixed to the oil inlet pipe of the filling equipment, ensuring quick and reliable connection with upstream and downstream equipment, achieving the comprehensive effect of improving maintenance convenience, preventing leakage, ensuring reliable connection, and ensuring the purity and safety of industrial oil storage and transportation. Attached Figure Description

[0016] Figure 1 This is one of the perspective views of this utility model.

[0017] Figure 2 This is the second perspective view of this utility model.

[0018] Figure 3 This is a cross-sectional view of the present invention.

[0019] Figure 4 This is a perspective view of the fixing component of this utility model.

[0020] Explanation of icon numbers: 1-Filter housing, 10-Oil inlet pipe, 11-Inspection cover, 110-Handle, 111-Sealing ring, 12-Oil outlet pipe, 2-Coarse filter assembly, 20-Metal braided filter screen, 21-First locking part, 3-Fine filter assembly, 30-Polymer microporous filter membrane, 31-Second locking part, 4-Adsorption assembly, 40-Activated carbon fiber layer, 41-Third locking part, 5-Fixing assembly, 50-Bearing seat, 51-Fixing shaft, 510-Positioning groove, 52-First isolation layer, 520-First flow through hole, 53-Second isolation layer, 530-Second flow through hole, 6-Bolt. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings: like Figure 1-4As shown, this utility model relates to a filtration device for an industrial oil storage and filling equipment, comprising a hollow filter housing 1, an oil inlet pipe 10 at the top of the filter housing 1, and an internal thread on the inner wall of the oil inlet pipe 10, which can be fixed to the oil outlet pipe of the oil storage and filling equipment by threaded connection. Near the top of the filter housing 1 is an openable and closable inspection cover 11, with a handle 110 at the top of the inspection cover 11. The handle 110 is integrally formed with the inspection cover 11, and the inspection cover 11 is sealed to the edge of the inspection port at the top of the filter housing 1 by a sealing ring 111. After the inspection cover 11 and the filter housing 1 are closed, they are tightly closed by a latch. An oil outlet pipe 12 is provided at the bottom, with an external thread on the outer wall of the oil outlet pipe 12, which can be threaded to the oil inlet of the filling equipment. The pipeline is fixed; inside the filter housing 1, a coarse filter assembly 2, a fine filter assembly 3, and an adsorption assembly 4 are arranged sequentially along the direction of industrial oil flow. The coarse filter assembly 2, the fine filter assembly 3, and the adsorption assembly 4 are all connected to the inner wall of the filter housing 1 through a fixing assembly 5. The fixing assembly 5 includes a fixing shaft 51 connected to the filter housing 1 through a bearing seat 50, a first isolation layer 52 fixed on the fixing shaft 51, and a second isolation layer 53 located below the first isolation layer 52. The outer surface of the fixing shaft 51 is provided with several positioning grooves 510. The first isolation layer 52 has a first flow through hole 520 for industrial oil flow, and the second isolation layer 53 has a second flow through hole 533 for industrial oil flow. The coarse filter assembly 2 is located above the first isolation layer 52, with its upper end close to the oil inlet pipe. The outlet of channel 10; the coarse filter assembly 2 includes at least one layer of metal woven filter screen 20 and a first locking part 21 for fixing the metal woven filter screen 20 to the fixed shaft 51. The first locking part 21 is provided with a bolt 6 that cooperates with the positioning groove 510 on the fixed shaft 51. Tightening the bolt 6 and engaging it with the positioning groove 510 fixes the metal woven filter screen 20; the fine filter assembly 3 is located below the first isolation layer 52. Industrial oil flows into the fine filter assembly 3 after passing through the coarse filter assembly 2; the fine filter assembly 3 includes at least one polymer microporous filter membrane 30 arranged circumferentially around the fixed shaft 51 and a second locking part 31 for fixing the polymer microporous filter membrane 30 to the fixed shaft 51. The second locking part 31 is provided with a bolt 6 that cooperates with the positioning groove 510 on the fixed shaft 51. Tightening the bolt 6 and engaging it with the positioning groove 510 fixes the metal woven filter screen 20 to the fixed shaft 51. The polymer microporous filter membrane 30 is fixed by bolt 6 and inserted into the positioning groove 510; the adsorption component 4 is disposed between the fine filtration component 3 and the second isolation layer 53; the adsorption component 4 includes at least one activated carbon fiber layer 40 arranged vertically around the fixed shaft 51 and a third locking part 41 that fixes the activated carbon fiber layer 40 to the fixed shaft 51. The third locking part 41 is provided with bolt 6 that cooperates with the positioning groove 510 on the fixed shaft 51. Tightening the bolt 6 and inserting it into the positioning groove 510 fixes the activated carbon fiber layer 40. Further, the fine filtration component 3 is provided below the second isolation layer 53 to perform secondary fine filtration of industrial oil; the part of the bolt that extends into the positioning groove is a smooth section. The smooth section of each bolt 6 forms a tight and sealed connection with the positioning groove 510 to prevent oil from flowing down the groove.

[0022] like Figure 2-3 As shown, in this embodiment, the metal woven filter screen 20 is preferably configured as three layers, which are sequentially fitted and coaxially arranged to form a cylindrical shape with an opening at the top. The oil inlet pipe 10 passes through the opening and extends into the innermost metal woven filter screen 20. The fixing shaft 51 passes through the central circular hole in the middle and is fixed by two first locking parts 21 arranged at the top and bottom. The three-layer filter screen can intercept large particles of impurities through the stepped aperture distribution, avoiding the problems of easy clogging and incomplete filtration of large particles of impurities by single-layer filter screens. The three-dimensional structure of the cylindrical shape makes the industrial oil form a spiral path during axial flow, which extends the filtration path length and increases the effective filtration area. Compared with the planar filter screen, it can improve the filtration efficiency and reduce fluid resistance. The first locking parts 21 lock up and down to form a stress buffer to offset the vibration impact generated by the flow of industrial oil and ensure that the filter screen maintains a stable position under high pressure conditions.

[0023] like Figure 2-3 As shown, in this embodiment, the polymer microporous filter membrane 30 is preferably configured as a double layer, with a certain distance between them and fixed to the fixed shaft 51 by the second locking part 31. At the same time, a certain gap is maintained with the first isolation layer 52 to facilitate smooth oil flow. The double-layer filter membrane avoids the filtration efficiency reduction caused by local blockage of the single-layer filter membrane. The "buffer chamber" with a 5-10mm gap between the two filter membranes allows industrial oil to enter the chamber after flowing through the first filter membrane and form a uniform liquid film diffusion, effectively eliminating fluid turbulence, making the flow velocity distribution more uniform, and reducing the mechanical damage to the filter membrane caused by local high-speed scouring. The 3-5mm gap with the first isolation layer 52 forms a "guide channel", allowing industrial oil flowing out of the first flow passage 520 of the first isolation layer 52 to smoothly enter the filter membrane area, avoiding changes in the flow cross section caused by contact compression, and preventing the formation of a "dead zone" in the oil at the contact surface (if the two are in close contact, the oil remaining in the gap will remain for a long time and breed bacteria and other contaminants).

[0024] like Figure 2-3 As shown, in this embodiment, the activated carbon fiber layer 40 is preferably set to 12 groups. The activated carbon fiber layer 40 is wider on the outside and narrower on the inside. When installed around the fixed shaft 51, the gap distance between the activated carbon fiber layers 40 is kept consistent. The upper and lower ends are respectively fixed to the fixed shaft 51 by a third locking part 41.

[0025] The filter housing 1 is used to prevent leakage during industrial oil filtration. The oil inlet pipe 10 is fixed to the oil outlet pipe thread of the oil storage tank through the internal thread of the inner side wall and guides the industrial oil into the filter housing 1. The inspection cover 11 is used to achieve openable and closable operation through the integrally formed handle 110 on the top and is sealed to the edge of the inspection port on the top of the filter housing 1 through the sealing ring 111 to ensure convenient maintenance and sealing performance. The oil outlet pipe 12 is fixed to the oil inlet pipe thread of the filling equipment through the external thread of the outer side wall and guides the filtered industrial oil to flow out. The coarse filter assembly 2 is used to perform primary filtration of industrial oil to remove large particulate impurities through at least one layer of metal braided filter screen 20 above the first isolation layer 52 on the fixed shaft 51. It is fixed to the fixed shaft 51 by the bolts 6 of the first locking part 21. The positioning groove 510 is used to achieve a stable fixation. The fine filter assembly 3 is used to perform a first fine filtration of the coarsely filtered industrial oil by means of a polymer microporous filter membrane 30 arranged circumferentially around the fixed shaft 51 below the first isolation layer 52 to remove small particulate impurities. The bolt 6 of the second locking part 31 is used to cooperate with the positioning groove 510 of the fixed shaft 51 to achieve a stable fixation. The adsorption assembly 4 is used to adsorb industrial oil between the fine filter assembly 3 and the second isolation layer 53 by means of an activated carbon fiber layer 40 arranged vertically around the fixed shaft 51 to remove other pollutants. The bolt 6 of the third locking part 41 is used to cooperate with the positioning groove 510 of the fixed shaft 51 to achieve a stable fixation. At the same time, the fine filter assembly 3 below the second isolation layer 53 is also used to perform a second fine filtration of the industrial oil to further improve the filtration effect.

[0026] The working principle is as follows: After industrial oil enters the filter housing 1 through the oil inlet pipe 10, it first flows through the metal woven filter screen 20 of the coarse filter assembly 2 to remove large particulate impurities. Then, it enters the fine filter assembly 3 area through the first flow passage 520 of the first isolation layer 52, where it undergoes a first fine filtration by the polymer microporous filter membrane 30 to remove small particles. Next, it enters the adsorption assembly 4 area where the activated carbon fiber layer 40 adsorbs other pollutants. After that, it flows through the second flow passage 530 of the second isolation layer 53 to enter the secondary fine filter assembly 3 below for a second fine filtration. Finally, it is output to the filling equipment through the oil outlet pipe 12. Each filter assembly is detachably fixed by the positioning groove 510 on the fixed shaft 51 and the locking bolt 6, which facilitates regular replacement and maintenance. The sealing ring 111 of the inspection cover 11 effectively prevents industrial oil leakage during the filtration process. The threaded connection of the oil inlet pipe 10 and the oil outlet pipe 12 ensures quick and reliable connection with upstream and downstream equipment, guaranteeing the purity and safety of industrial oil in the oil storage and filling process.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. Therefore, without departing from the design spirit of the present utility model, any equivalent changes or modifications made by those skilled in the art to the structure, features and principles of the present utility model should fall within the protection scope of the patent application of the present utility model.

Claims

1. A filtration device for an industrial oil storage and filling equipment, comprising a hollow filter housing, an oil inlet pipe at the top of the filter housing, and an oil outlet pipe at the bottom, characterized in that: The filter housing contains a coarse filter assembly, a fine filter assembly, and an adsorption assembly arranged sequentially along the flow direction of the industrial oil. All three assemblies are connected to the inner wall of the filter housing via a fixing assembly. The fixing assembly includes a fixing shaft connected to the filter housing via a bearing seat, a first isolation layer fixed to the fixing shaft, and a second isolation layer located below the first isolation layer. The coarse filter assembly includes at least one layer of woven metal mesh and a first locking part that fixes the woven metal mesh to the fixing shaft. The fine filter assembly includes at least one polymer microporous filter membrane arranged circumferentially around the fixing shaft and a second locking part that fixes the polymer microporous filter membrane to the fixing shaft. The adsorption assembly includes at least one activated carbon fiber layer arranged vertically around the fixing shaft and a third locking part that fixes the activated carbon fiber layer to the fixing shaft.

2. The filtration device for industrial oil storage and filling equipment according to claim 1, characterized in that: The coarse filter assembly is located above the first isolation layer, with its upper end close to the oil inlet pipe.

3. The filtration device for industrial oil storage and filling equipment according to claim 1, characterized in that: The fine filter assembly is located below the first isolation layer, and the industrial oil flows into the fine filter assembly after passing through the coarse filter assembly.

4. The filtration device for industrial oil storage and filling equipment according to claim 1, characterized in that: The adsorption component is located between the fine filtration component and the second isolation layer.

5. The filtration device for industrial oil storage and filling equipment according to claim 1, characterized in that: The filter housing is provided with an openable inspection cover on the top, and the inspection cover is provided with a handle on the top. The handle is integrally formed with the inspection cover, and the inspection cover is sealed to the edge of the inspection port on the top of the filter housing by a sealing ring.

6. The filtration device for industrial oil storage and filling equipment according to claim 1, characterized in that: The inner wall of the oil inlet pipe is provided with internal threads, which can be fixed to the oil outlet pipe of the oil storage tank through threaded connection.

7. The filtration device for industrial oil storage and filling equipment according to claim 1, characterized in that: The outer wall of the oil outlet pipe is provided with external threads, which can be used to fix it to the pipe at the oil inlet end of the filling equipment through threaded connection.

8. The filtration device for industrial oil storage and filling equipment according to claim 1, characterized in that: The outer surface of the fixed shaft is provided with several positioning grooves.

9. The filtration device for industrial oil storage and filling equipment according to claim 1, characterized in that: The first isolation layer has a first flow-through hole for industrial oil flow.

10. The filtration device for industrial oil storage and filling equipment according to claim 1, characterized in that: The second isolation layer has a second flow-through hole for industrial oil flow.

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