Fine filtration equipment for lubricating oil production

By introducing a cyclone separation zone and a fine filtration zone into the lubricating oil production equipment, and combining strong magnets, a clay adsorption layer, and a fine filter screen for filtration, the problem of removing impurities from lubricating oil has been solved, and the quality of lubricating oil has been improved.

CN224261426UActive Publication Date: 2026-05-19HEBEI FEITIAN PETROCHEMICAL GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI FEITIAN PETROCHEMICAL GRP CO LTD
Filing Date
2025-07-14
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing lubricating oil production equipment is unable to effectively remove impurities such as additive residues and metal shavings, which affects the quality of lubricating oil.

Method used

A fine filtration device for lubricating oil production was designed, comprising a cyclone separation zone and a fine filtration zone. It uses a combination of strong magnets, a clay adsorption layer, and a fine filter screen for filtration, and removes impurities by utilizing centrifugal force and adsorption.

Benefits of technology

It quickly and effectively removes impurities from lubricating oil, improving the quality of the lubricating oil.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224261426U_ABST
    Figure CN224261426U_ABST
Patent Text Reader

Abstract

The utility model discloses fine filtration equipment for lubricating oil production, which comprises a filter cartridge, a sealing cover is arranged at the top of the filter cartridge, and an oil outlet pipe communicated with the inside of the filter cartridge is arranged in the middle of the sealing cover; the filter cartridge comprises a lower cyclone separation area and an upper fine filtration area; the cyclone separation area is communicated with an oil inlet pipe, the oil inlet direction of the oil inlet pipe is tangent to the side wall of the fine filter cylinder, and the bottom of the cyclone separation area is provided with a conical hopper communicated with the slag discharge port; the fine filtration area is provided with a fine filtration assembly for performing fine filtration on the separated lubricating oil again, and the fine filtration assembly is mounted on the top end surface of the inner side of the sealing cover; according to the utility model, firstly, particulate matters with larger density in the lubricating oil are removed in the cyclone separation area, the lubricating oil subjected to preliminary separation flows upwards and is further filtered by the fine filtration assembly to obtain the lubricating oil with better quality, impurities in the lubricating oil are quickly and effectively removed, and the oil quality of the lubricating oil is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of lubricating oil filtration equipment, specifically to a fine filtration device for lubricating oil production. Background Technology

[0002] Lubricating oil is a liquid lubricant used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. Its main functions include lubrication, auxiliary cooling, rust prevention, cleaning, sealing, and buffering. Lubricating oil must be pure and free of impurities; otherwise, it will seriously damage the machine, causing issues such as roughening of friction surfaces, jamming, and clogging of lubrication channels. Lubricating oil often contains functional additives, but these additives are generally not completely miscible with the lubricating oil. During the mixing process, undissolved residues remain in the lubricating oil. Furthermore, some metal shavings inevitably flake off during the production equipment and transportation pipelines. If these residues and metal shavings are not filtered out, they will directly affect the quality of the lubricating oil. Therefore, filtration is necessary during the lubricating oil production process to ensure its quality. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a fine filtration device for lubricating oil production, which can quickly filter out impurities in lubricating oil and improve the quality of lubricating oil.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0005] A fine filtration device for lubricating oil production includes a filter cartridge with a sealing cover at the top and an oil outlet pipe communicating with the interior of the filter cartridge in the middle of the sealing cover. The filter cartridge includes a lower cyclone separation zone and an upper fine filtration zone. The cyclone separation zone is connected to an oil inlet pipe, and the oil inlet direction of the oil inlet pipe is tangent to the side wall of the filter cartridge. A conical hopper communicating with a slag discharge port is provided at the bottom of the cyclone separation zone. The fine filtration zone is provided with a fine filtration assembly for further fine filtration of the separated lubricating oil, and the fine filtration assembly is installed on the top surface of the inner side of the sealing cover.

[0006] The aforementioned fine filtration equipment for lubricating oil production includes a coarse filter screen, a clay adsorption layer, and a fine filter screen arranged sequentially from the outside to the inside. An annular groove is formed between the coarse filter screen and the fine filter screen located above the clay adsorption layer, and a locking block that matches the annular groove is provided inside the sealing cover.

[0007] The aforementioned fine filtration equipment for lubricating oil production includes a coarse filter screen, a clamping block, and a fine filter screen connected by bolts. The top of the fine filter screen is provided with a threaded groove that is threaded to the bolt, and a locking nut is installed on the bolt extending from the side of the coarse filter screen.

[0008] The aforementioned fine filtration equipment for lubricating oil production includes a strong magnet on the frame of the coarse filter screen for removing magnetic metallic impurities from the lubricating oil.

[0009] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0010] This invention provides a fine filtration device for lubricating oil production. First, denser particulate matter in the lubricating oil is removed in the cyclone separation zone. The lubricating oil after preliminary separation flows upward and is further filtered by the fine filtration component to obtain lubricating oil of better quality. A strong magnet is set on the frame of the coarse filter screen to remove magnetic metallic impurities in the lubricating oil. The bleaching clay adsorption layer can not only adsorb smaller particles, but also adsorb harmful polar substances produced by oil oxidation, small amounts of water, etc. Then, the remaining impurities are further filtered by the fine filter screen, which quickly and effectively removes impurities in the lubricating oil and improves the quality of the lubricating oil. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the specific structure of the present utility model;

[0012] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0013] Figure 3 for Figure 1 CC-direction sectional view.

[0014] The components are: 1. Filter cartridge, 2. Cyclone separation zone, 3. Fine filtration zone, 4. Conical hopper, 5. Slag discharge port, 6. Oil inlet pipe, 7. Sealing cover, 8. Fine filtration assembly, 9. Oil outlet pipe, 10. Coarse filter screen, 11. White clay adsorption layer, 12. Fine filter screen, 13. Clamping block, 14. Bolt, 15. Locking nut. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] A fine filtration device for lubricating oil production, such as Figures 1 to 3 As shown, the filter cartridge 1 includes a sealing cover 7 at the top of the filter cartridge 1 and an oil outlet pipe 9 communicating with the interior of the filter cartridge 1 in the middle of the sealing cover 7. The filter cartridge 1 includes a lower cyclone separation zone 2 and an upper fine filtration zone 3.

[0017] The cyclone separation zone 2 is connected to the oil inlet pipe 6 and the oil inlet direction of the oil inlet pipe 6 is tangent to the side wall of the filter cartridge 1, which facilitates the formation of cyclone in the fine filter cartridge. Using centrifugal force, solid particles with a density greater than that of oil are thrown towards the cartridge wall. The inner wall of the cartridge is smooth, which facilitates the falling of separated impurities. In the central area of ​​the cyclone separation zone 2, a low-pressure zone is formed, and relatively clean oil will gather towards the center and flow upward.

[0018] The bottom of the cyclone separation zone 2 is equipped with a conical hopper 4 that is connected to the slag discharge port 5, which facilitates the discharge of the separated impurities.

[0019] The fine filtration zone 3 is equipped with a fine filtration component 8 for further fine filtration of the separated lubricating oil. The fine filtration component 8 is installed on the top surface of the inner side of the sealing cover 7.

[0020] The fine filtration assembly 8 includes a coarse filter 10, a clay adsorption layer 11, and a fine filter 12 arranged sequentially from the outside to the inside. An annular groove is formed between the coarse filter 10 and the fine filter 12 located above the clay adsorption layer 11. A locking block 13 that matches the annular groove is provided inside the sealing cover 7.

[0021] The coarse filter screen 10, the locking block 13 and the fine filter screen 12 are connected by bolts 14. The top of the fine filter screen 12 is provided with a threaded groove that is threaded to the bolts 14. A locking nut 15 is installed on the bolts 14 that extend out of the coarse filter screen 10.

[0022] A strong magnet is installed on the frame of the coarse filter 10 to remove magnetic metallic impurities in the lubricating oil.

[0023] A sealing ring is provided between the sealing cover 7 and the fine filter cartridge 1 to ensure the airtightness of the fine filter cartridge.

[0024] During use, the lubricating oil enters the cyclone separation zone from the oil inlet pipe and forms a cyclone to remove the denser substances in the lubricating oil by means of centrifugal force. The initially separated lubricating oil flows upward and passes through three layers of filtration in the fine filter assembly: the coarse filter screen, the clay adsorption layer, and the fine filter screen, effectively removing impurities inside the lubricating oil. Then it is discharged through the oil outlet pipe.

[0025] If the fine filter assembly needs to be replaced, open the sealing cover and remove the bolts connecting the clips to the coarse and fine filter screens to replace the new fine filter assembly.

[0026] This invention provides a fine filtration device for lubricating oil production. First, denser particulate matter in the lubricating oil is removed in the cyclone separation zone. The lubricating oil after preliminary separation flows upward and is further filtered by the fine filtration component to obtain lubricating oil of better quality. A strong magnet is set on the frame of the coarse filter screen to remove magnetic metallic impurities in the lubricating oil. The bleaching clay adsorption layer can not only adsorb smaller particles, but also adsorb harmful polar substances produced by oil oxidation, small amounts of water, etc. Then, the remaining impurities are further filtered by the fine filter screen, which quickly and effectively removes impurities in the lubricating oil and improves the quality of the lubricating oil.

Claims

1. A fine filtration device for lubricating oil production, characterized in that: The filter includes a filter cartridge (1), a sealing cover (7) is provided on the top of the filter cartridge (1), and an oil outlet pipe (9) is provided in the middle of the sealing cover (7) and communicates with the inside of the filter cartridge (1); the filter cartridge (1) includes a lower cyclone separation zone (2) and an upper fine filtration zone (3); the cyclone separation zone (2) is connected to the oil inlet pipe (6) and the oil inlet direction of the oil inlet pipe (6) is tangent to the side wall of the filter cartridge (1); a conical bucket (4) is provided at the bottom of the cyclone separation zone (2) and communicates with the slag discharge port (5); the fine filtration zone (3) is provided with a fine filtration assembly (8) for further fine filtration of the separated lubricating oil, and the fine filtration assembly (8) is installed on the top surface of the inner side of the sealing cover (7).

2. The fine filtration equipment for lubricating oil production according to claim 1, characterized in that: The fine filtration assembly (8) includes a coarse filter (10), a clay adsorption layer (11), and a fine filter (12) arranged sequentially from the outside to the inside. An annular groove is formed between the coarse filter (10) and the fine filter (12) located above the clay adsorption layer (11). A locking block (13) matching the annular groove is provided inside the sealing cover (7).

3. The fine filtration equipment for lubricating oil production according to claim 2, characterized in that: The coarse filter (10), the locking block (13) and the fine filter (12) are connected by bolts (14). The top of the fine filter (12) is provided with a threaded groove that is threaded to the bolt (14). A locking nut (15) is installed on the bolt (14) that extends out of the coarse filter (10).

4. The fine filtration equipment for lubricating oil production according to claim 2, characterized in that: The frame of the coarse filter (10) is provided with a strong magnet for removing magnetic metal impurities in the lubricating oil.