Multi-layer oil filtering device

Abstract

The utility model relates to a multi-layer oil filtering device, and relates to the technical field of filtering equipment, the multi-layer oil filtering device comprises a box body, a box cover, a first oil filtering assembly used for filtering large particle substances in an oil product and a high-precision oil filtering assembly used for filtering colloidal substances in the oil product, the box cover is hinged to the box body, an oil inlet is formed in the box cover, and the first oil filtering assembly and the high-precision oil filtering assembly are hinged to the box body. An oil inlet is formed in the box body, an oil outlet is formed in the box body, the first oil filtering assembly comprises a filter screen, the filter screen is fixedly connected to the box cover and arranged on the side wall of an opening of the oil inlet, and the high-precision oil filtering assembly is fixedly connected into the box body and arranged on the side wall of an opening of the oil outlet. The high-precision filtering device has the effect of improving the situation that a large number of large-particle substances in an oil product are accumulated on the high-precision filtering device and block holes, so that the oil filtering efficiency is reduced.

Description

Technical Field

[0001] The present application relates to the field of filtering equipment technology, and in particular to a multi-layer oil filtering device. Background Art

[0002] Filtration is the operation of passing liquid (or gas) through a medium under the action of a driving force or other external force, while solid particles and other substances are retained by the filter medium, thereby separating the solids and other substances from the liquid (or gas).

[0003] In the related technology, colloid is a component in oil. When burning, colloid in oil products easily forms carbon slag, causing machine wear and blockage. Therefore, in the process of oil refining, degumming process is usually used to reduce the content of colloid in oil products. Among them, membrane filtration degumming method with high-precision filtering device (membrane material with specific pore size) is widely used. After pretreatment (such as heating, cooling or adding appropriate amount of water or other chemicals), the colloid substance is intercepted by high-precision filtering device.

[0004] The following problems still exist in the prior art: since the high-precision filter device is often in direct contact with the oil during use, a large amount of large particles in the oil are easily accumulated on the high-precision filter device, clogging the holes, thereby reducing the oil filtration efficiency, and there is still room for improvement. Utility Model Content

[0005] In order to improve the situation that a large amount of large particles in the oil are easily accumulated on the high-precision filtering device and block the holes, thereby reducing the oil filtering efficiency, since the high-precision filtering device often directly contacts the oil during use, the present application provides a multi-layer oil filtering device.

[0006] The multi-layer oil filter device provided in this application adopts the following technical solution:

[0007] A multi-layer oil filter device comprises a casing, a casing cover, a first oil filter assembly for filtering large particles in oil, and a high-precision oil filter assembly for filtering colloidal substances in oil, wherein the casing cover is hinged to the casing, an oil inlet is provided on the casing cover, and an oil outlet is provided on the casing, the first oil filter assembly comprises a filter screen, the filter screen is fixedly connected to the casing cover, the filter screen is arranged on the side wall at the opening of the oil inlet, and the high-precision oil filter assembly is fixedly connected to the casing and arranged on the side wall at the opening of the oil outlet.

[0008] By adopting the above technical solution, when the oil enters the casing from the oil inlet, the filter will preliminarily filter the large particles in the oil, reducing the probability of large particles entering the casing and causing large particles to clog the high-precision oil filter assembly, thereby enhancing the oil filtering effect and improving the oil filtering efficiency of the high-precision oil filter assembly.

[0009] Optionally, it also includes a second oil filter assembly for enhancing the filtering effect of the device, the second oil filter assembly includes a ring plate and a plurality of filter cloths arranged in the box body, the plurality of filter cloths are fixedly connected to the circumferential inner wall of the ring plate, and the plurality of filter cloths are evenly arranged on the ring plate in the vertical direction.

[0010] By adopting the above technical solution, when filtering operations are performed, the filter is subjected to a greater impact from the oil, and the continuous friction between the large particles and the filter will damage the filter, causing the filter to lose its filtering function. The second oil filter assembly reduces the risk of large particles clogging the high-precision oil filter assembly after the filter fails, thereby improving the oil filtering efficiency and greatly enhancing the stability of the oil filtering device.

[0011] Optionally, the apertures of the filter cloths decrease layer by layer along a side of the box cover close to the bottom wall of the box body.

[0012] By adopting the above technical solution, when the oil passes through the second oil filter assembly, a number of filter cloths filter the oil layer by layer, reducing the content of small particles in the oil, further reducing the risk of other small particles in the oil clogging the high-precision oil filter assembly, reducing the workload of the high-precision oil filter assembly, and increasing the service life of the high-precision oil filter assembly.

[0013] Optionally, a placement platform for placing the ring plate is provided on the circumferential inner wall of the box body, and the side of the ring plate away from the box cover abuts against the side of the placement platform close to the box cover, and the second oil filter assembly is slidably connected in the box body.

[0014] By adopting the above technical solution and setting up the placement table, it is convenient for operators to install and position the second oil filter assembly, thereby reducing the difficulty of installing the second oil filter assembly and improving the work efficiency of operators.

[0015] Optionally, the high-precision oil filter assembly includes a high-precision filter membrane, which is fixedly connected to a side of the casing away from the casing cover and is disposed inside the casing, and the high-precision filter membrane is disposed on a side wall at the oil outlet opening, and the pore size of the high-precision filter membrane is smaller than the pore size of the filter cloth on a side of the second oil filter assembly away from the casing cover.

[0016] By adopting the above technical solution, after the oil passes through the first oil filter assembly and the second oil filter assembly, the colloidal substance is filtered through the high-precision filter membrane, thereby avoiding direct contact between the high-precision oil filter assembly and unfiltered oil. The first oil filter assembly and the second oil filter assembly provide protection for the high-precision oil filter assembly, thereby increasing the service life of the high-precision oil filter assembly.

[0017] Optionally, the first filter assembly also includes a connecting piece, the filter screen is fixedly connected to the connecting piece, the connecting piece is provided with a filter screen sandwich for fixed connection of the filter screen, a first clamping ring and a second clamping ring sleeved on the circumferential outer wall of the oil pipeline, the first clamping ring is fixedly connected to a side of the filter screen sandwich close to the box cover, the circumferential outer wall of the first clamping ring is clamped on the hole wall of the oil outlet, the end of the first clamping ring away from the filter screen sandwich is penetrated into the oil inlet, and the second clamping ring is fixedly connected to a side of the filter screen sandwich away from the box cover.

[0018] By adopting the above technical solution, when the oil is controlled to enter the device, the oil is input along the second tightening ring, filtered through the filter and then enters the interior of the box along the first tightening ring, thereby reducing the probability of the box cover being contaminated with oil and difficult to clean, enhancing the cleanliness, and making it easier for operators to replace the filter, thereby reducing the impact of damaged filters on the device and reducing the failure rate.

[0019] Optionally, the filter mesh interlayer includes a top layer and a bottom layer, the bottom layer is arranged on a side of the filter mesh interlayer close to the box cover, the top layer is arranged on a side of the filter mesh interlayer away from the box cover, the filter is arranged between the top layer and the bottom layer, a sealing ring is arranged on the filter mesh interlayer, sealing grooves are arranged on two opposite sides of the top layer and the bottom layer, and the sealing ring is embedded in the two sealing grooves.

[0020] By adopting the above technical solution, the sealing ring seals the top layer and the bottom layer, thereby enhancing the sealing of the connecting piece. At the same time, by separating the top layer and the bottom layer, it is convenient for operators to install and replace the filter screen, thereby reducing the difficulty of filter screen replacement and improving the work efficiency of operators.

[0021] Optionally, a positioning column is provided on a side of the bottom layer away from the box cover, and a positioning groove is provided on a side of the top layer close to the bottom layer. The positioning column passes through the circumferential edge hole of the filter and is inserted into the positioning groove.

[0022] By adopting the above technical solution, when the operator installs the filter, the positioning column is inserted into the hole on the filter, which enhances the tension of the filter and reduces the probability of the filter being impacted by the oil during transportation and thus detaching from the filter interlayer, thereby losing the filter's oil filtering effect. This improves the stability of the first oil filter assembly, reduces the failure rate, and enhances convenience.

[0023] Optionally, a guide surface for guiding the oil in the box to slide to one side of the oil outlet is provided on the bottom wall of the box, and the oil inlet and the oil outlet are arranged non-coaxially.

[0024] By adopting the above technical scheme, when the oil is transported into the box along the oil inlet, the oil in the box automatically slides along the guide surface toward the oil outlet, thereby improving the oil filtering efficiency. At the same time, it avoids direct damage to the high-precision oil filter assembly by the filtered oil at the oil outlet, thereby improving the service life of the high-precision oil filter assembly.

[0025] Optionally, a driving groove for an operator to pull is provided on the circumferential inner side wall of the ring plate on the side close to the box cover.

[0026] By adopting the above technical solution, when the operator needs to take out the second oil filter assembly for maintenance and cleaning, the operator inserts his fingers into the drive groove and pulls out the second oil filter assembly, which reduces the difficulty of operation and improves the work efficiency of the operator.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The filter screen preliminarily filters the large particles in the oil, reducing the probability of large particles entering the box and blocking the high-precision oil filter components, thereby enhancing the oil filtering effect and improving the oil filtering efficiency of the high-precision oil filter components;

[0029] 2. Several filter cloths filter the oil layer by layer, further reducing the risk of other small particles in the oil clogging the high-precision oil filter components, reducing the workload of the high-precision oil filter components, and increasing the service life of the high-precision oil filter components;

[0030] 3. The positioning column enhances the tension of the filter, reduces the probability of the filter being impacted by oil during transportation and thus detaching from the filter interlayer, thus losing the filter's oil filtering effect, improves the stability of the first oil filter assembly, reduces the failure rate, and enhances convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a multi-layer oil filtering device in an embodiment of the present application.

[0032] Figure 2 It is a schematic diagram of an explosion of a multi-layer oil filter device in an embodiment of the present application.

[0033] Figure 3 It is a schematic diagram of an explosion of the first oil filter assembly in the embodiment of the present application.

[0034] Figure 4 It is a right side view of a multi-layer oil filter device in an embodiment of the present application.

[0035] Figure 5 yes Figure 4 Schematic diagram of the cross section along the AA direction.

[0036] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle.

[0037] Figure 7 It is a schematic diagram of an explosion of the second oil filter assembly in the embodiment of the present application.

[0038] Explanation of the accompanying drawings: 1. Box body; 11. Oil outlet; 12. Guide surface; 13. Placement table; 2. Box cover; 21. Oil inlet; 3. First oil filter assembly; 31. Connector; 311. Filter screen interlayer; 3111. Top layer; 3112. Bottom layer; 3113. Sealing ring; 3114. Fastening bolt; 3115. Positioning column; 3116. Sealing groove; 3117. Positioning groove; 312. First clamping ring; 313. Second clamping ring; 32. Filter screen; 4. Second oil filter assembly; 41. Ring plate; 411. Drive groove; 42. Filter cloth; 5. High-precision oil filter assembly; 51. High-precision filter membrane. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-7 This application is described in further detail.

[0040] The present application embodiment discloses a multi-layer oil filter device. Figure 1 and Figure 2 A multi-layer oil filter device includes a housing 1, a housing cover 2, a first oil filter assembly 3, a second oil filter assembly 4 and a high-precision oil filter assembly 5. The housing cover 2 is hinged on the housing 1 for filtering the oil. The first oil filter assembly 3 is fixedly connected to the housing cover 2 to preliminarily filter the oil into the housing 1. The second oil filter assembly 4 is fixedly connected to the housing 1 to further filter the oil. The high-precision oil filter assembly 5 is fixedly connected to the housing 1 and is located on the side of the second oil filter assembly 4 away from the first oil filter assembly 3 to filter the colloidal substances in the oil.

[0041] Reference Figure 1 and Figure 2 The box cover 2 has an oil inlet 21, and the box body 1 has an oil outlet 11 for oil circulation and filtration. The bottom wall of the box body 1 has a guide surface 12 opened toward the side wall of the opening of the oil outlet 11 to guide the oil in the box body 1 to be transported to the oil outlet 11.

[0042] Reference Figure 2 and Figure 3 The first oil filter assembly 3 includes a connector 31 and a filter 32. The connector 31 is fixedly connected to the tank cover 2 and is inserted into the oil inlet 21 to allow the oil to be transported into the tank body 1. The filter 32 is fixedly connected to the connector 31 to filter the oil passing through the connector 31. In the embodiment of the present application, the filter 32 has a larger aperture to preliminarily filter large particles.

[0043] Reference Figure 2 and Figure 3 , the connecting member 31 includes a filter sandwich 311, a first abutting ring 312 and a second abutting ring 313. The filter sandwich 311 includes a top layer 3111, a bottom layer 3112, a sealing ring 3113, a fastening bolt 3114 and a positioning column 3115. The bottom layer 3112 is located on the side of the filter sandwich 311 close to the box cover 2, the top layer 3111 is located on the side of the filter sandwich 311 away from the box cover 2, and the side of the top layer 3111 close to the box cover 2 abuts against the side of the bottom layer 3112 away from the box cover 2 to clamp the filter 32. The bottom layer 3112 has a groove opened in the direction away from the box cover 2, and the top layer 3111 has a groove opened in the direction close to the box cover 2. In the embodiment of the present application, the two grooves cooperate to form a sealing groove 3116 for the sealing ring 3113 to be placed, and the sealing ring 3113 is integrally embedded in the sealing groove 3116 to enhance the sealing performance of the connection between the top layer 3111 and the bottom layer 3112.

[0044] Reference Figure 3 and Figure 4 , the fastening bolts 3114 are sequentially inserted into the top layer 3111 and the bottom layer 3112 to fasten the filter screen interlayer 311. The bottom layer 3112 is fixedly connected to the side away from the box cover 2 with a positioning column 3115, and the top layer 3111 has a positioning groove 3117 on the side close to the box cover 2. The positioning column 3115 is inserted into the hole at the edge of the filter screen 32 and inserted into the positioning groove 3117, so that the operator can replace the filter screen 32. In the embodiment of the present application, the number of the positioning columns 3115 is several and they are located on the side wall of the opening of the bottom layer 3112, and the sealing ring 3113 is located on the outside of the positioning column 3115.

[0045] Reference Figure 5 and Figure 6 The first tightening ring 312 is fixedly connected to the side of the bottom layer 3112 close to the tank cover 2, and the circumferential outer side wall of the first tightening ring 312 is pressed against the hole wall of the oil inlet 21. The first tightening ring 312 is penetrated into the oil inlet 21 to reduce the oil pollution caused by the oil to the tank cover 2. The second tightening ring 313 is fixedly connected to the side of the top layer 3111 away from the tank cover 2, and the circumferential inner side wall of the second tightening ring 313 is pressed against the circumferential outer side wall of the oil pipeline to reduce the risk of oil overflowing the connector 31. In the embodiment of the present application, the bottom layer 3112 and the first tightening ring 312 are integrally arranged, and the top layer 3111 and the second tightening ring 313 are integrally arranged to reduce the difficulty of production.

[0046] Reference Figure 5 and Figure 7, the second oil filter assembly 4 includes a ring plate 41 and a filter cloth 42. The ring plate 41 is slidably connected to the circumferential inner wall of the housing 1 for fixing the filter cloth 42. The filter cloth 42 is fixedly connected to the circumferential inner wall of the ring plate 41 to further filter the oil. In the embodiment of the present application, the number of filter cloths 42 is several and they are evenly arranged on the ring plate 41 along the height direction of the ring plate 41. The apertures of several filter cloths 42 gradually decrease from the side close to the box cover 2 to the side away from the box cover 2 to filter fine particulate matter. A placement table 13 is fixedly connected to the circumferential inner wall of the housing 1, and the side of the ring plate 41 away from the box cover 2 abuts against the placement table 13 to facilitate installation and positioning by the operator. The side of the ring plate 41 close to the box cover 2 also has a driving groove 411 to facilitate the operator to take out the second oil filter assembly 4.

[0047] Reference Figure 2 , the high-precision oil filter assembly 5 includes a high-precision filter membrane 51. The high-precision filter membrane 51 is fixedly connected to the side wall at the opening of the oil outlet 11 and is located in the box body 1 to separate the colloidal substances in the oil. In the embodiment of the present application, the pore size of the high-precision filter membrane 51 is smaller than the pore size of the filter screen 32 and each layer of filter cloth 42. In the embodiment of the present application, the oil inlet 21 and the oil outlet 11 are located on different straight lines to avoid damage to the high-precision filter membrane 51 by the oil input from the oil inlet 21.

[0048] The implementation principle of a multi-layer oil filter device in an embodiment of the present application is as follows: the oil is input into the housing 1 from the connecting piece 31 along the conveying pipeline, the oil is initially filtered through the filter screen 32 in the connecting piece 31 to filter large particles, the oil then passes through the second oil filter assembly 4 layer by layer to filter small particles and other impurities, and the oil finally passes through the high-precision filter membrane 51 along the guide surface 12 to filter the colloidal substances to complete the oil filtering operation.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-layer oil filter device, characterized in that: The invention comprises a box body (1), a box cover (2), a first oil filter assembly (3) for filtering large particles in oil products, and a high-precision oil filter assembly (5) for filtering colloidal substances in oil products, wherein the box cover (2) is hingedly connected to the box body (1), the box cover (2) is provided with an oil inlet (21), the box body (1) is provided with an oil outlet (11), the first oil filter assembly (3) comprises a filter screen (32), the filter screen (32) is fixedly connected to the box cover (2), the filter screen (32) is arranged on the side wall at the opening of the oil inlet (21), and the high-precision oil filter assembly (5) is fixedly connected to the box body (1) and is arranged on the side wall at the opening of the oil outlet (11); The first oil filter assembly (3) further comprises a connecting member (31), the filter screen (32) being fixedly connected to the connecting member (31), the connecting member (31) being provided with a filter screen sandwich (311) to which the filter screen (32) is fixedly connected, a first abutting ring (312), and a second abutting ring (313) sleeved on the circumferential outer wall of the oil pipeline, the first abutting ring (312) being fixedly connected to a side of the filter screen sandwich (311) close to the tank cover (2), the circumferential outer wall of the first abutting ring (312) abuts against a hole wall of the oil outlet (11), an end of the first abutting ring (312) away from the filter screen sandwich (311) being inserted into the oil inlet (21), and the second abutting ring (313) being fixedly connected to a side of the filter screen sandwich (311) away from the tank cover (2).

2. A multi-layer oil filter device according to claim 1, characterized in that: It also comprises a second oil filter assembly (4) for enhancing the filtering effect of the device, the second oil filter assembly (4) comprising an annular plate (41) and a plurality of filter cloths (42) arranged in the housing (1), the plurality of filter cloths (42) being fixedly connected to the circumferential inner side wall of the annular plate (41), and the plurality of filter cloths (42) being evenly arranged on the annular plate (41) in the vertical direction.

3. A multi-layer oil filter device according to claim 2, characterized in that: The apertures of the plurality of filter cloths (42) decrease layer by layer along a side of the box cover (2) close to the bottom wall of the box body (1).

4. A multi-layer oil filter device according to claim 2, characterized in that: A placement platform (13) for placing the ring plate (41) is provided on the circumferential inner wall of the box body (1), and a side of the ring plate (41) away from the box cover (2) abuts against a side of the placement platform (13) close to the box cover (2), and the second oil filter assembly (4) is slidably connected in the box body (1).

5. A multi-layer oil filter device according to claim 3, characterized in that: The high-precision oil filter assembly (5) comprises a high-precision filter membrane (51), the high-precision filter membrane (51) being fixedly connected to a side of the housing (1) away from the housing cover (2) and being arranged in the housing (1), the high-precision filter membrane (51) being arranged on a side wall at the opening of the oil outlet (11), the pore size of the high-precision filter membrane (51) being smaller than the pore size of the filter cloth (42) on a side of the second oil filter assembly (4) away from the housing cover (2).

6. A multi-layer oil filter device according to claim 1, characterized in that: The filter screen interlayer (311) comprises a top layer (3111) and a bottom layer (3112); the bottom layer (3112) is arranged on a side of the filter screen interlayer (311) close to the box cover (2); the top layer (3111) is arranged on a side of the filter screen interlayer (311) away from the box cover (2); the filter screen (32) is arranged between the top layer (3111) and the bottom layer (3112); a sealing ring (3113) is arranged on the filter screen interlayer (311); sealing grooves (3116) are arranged on two opposite sides of the top layer (3111) and the bottom layer (3112); and the sealing ring (3113) is embedded in the two sealing grooves (3116).

7. A multi-layer oil filter device according to claim 6, characterized in that: A positioning column (3115) is provided on the side of the bottom layer (3112) away from the box cover (2), and a positioning groove (3117) is provided on the side of the top layer (3111) close to the bottom layer (3112). The positioning column (3115) is inserted into the circumferential edge hole of the filter screen (32) and inserted into the positioning groove (3117).

8. A multi-layer oil filter device according to claim 1, characterized in that: A guide surface (12) is provided on the bottom wall of the box body (1) for guiding the oil in the box body (1) to slide to one side of the oil outlet (11), and the oil inlet (21) and the oil outlet (11) are arranged on different axes.

9. A multi-layer oil filter device according to claim 2, characterized in that: A driving groove (411) for an operator to pull is provided on the circumferential inner side wall of the ring plate (41) on a side close to the box cover (2).

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