Efficient centrifugal separator for lubricating oil production
By using a high-efficiency centrifugal separator to separate impurities and water from lubricating oil using centrifugal force, the problem of lubricating oil emulsification is solved, and the lubrication performance and equipment protection effect are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-29
- Publication Date
- 2026-03-17
AI Technical Summary
Existing lubricating oils may retain moisture after hydrotreating, forming emulsions that reduce lubrication performance and increase the risk of equipment wear.
A high-efficiency centrifugal separator for lubricant production was designed. By setting up a centrifugal separation component, the powerful centrifugal force is used to make impurities settle to the outer wall, separating the lubricating oil and preventing the negative impact of moisture on performance.
It effectively removes solid impurities and moisture from lubricating oil, keeps the oil clean, prevents wear, and improves lubrication and equipment operating efficiency.
Smart Images

Figure CN223996302U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lubricating oil production technology, specifically to a high-efficiency centrifugal separator for lubricating oil production. Background Technology
[0002] The production process of lubricating oil is a highly specialized industrial process, typically involving multiple steps to ensure product quality and performance. The main functions of lubricating oil are to reduce friction between mechanical parts, cool, clean, and prevent corrosion. The main components of lubricating oil include base oil and additives. Base oils are usually derived from petroleum refining or synthetic oils, while additives are used to enhance the performance of the lubricating oil. High-efficiency centrifugal separators are primarily used in the lubricating oil production process to remove solid impurities from the liquid, separate different components in the liquid, and improve the cleanliness and quality of the oil.
[0003] Existing lubricating oils may still contain a small amount of residual water after hydrotreating. When water mixes with lubricating oil, it forms an oil-in-water or water-in-oil emulsion. Emulsification reduces the lubricating performance of the oil. Furthermore, the presence of water in the emulsion increases the coefficient of friction, leading to poorer lubrication and increased risk of equipment wear. To address these issues, the inventors propose a high-efficiency centrifugal separator for lubricating oil production. Utility Model Content
[0004] To address the issue that existing lubricating oils may retain trace amounts of water after hydrotreating, which can form oil-in-water or water-in-oil emulsions when mixed with lubricating oil, emulsification reduces the oil's lubricating performance. Furthermore, the presence of water in the emulsion increases the oil's coefficient of friction, further worsening lubrication and increasing the risk of equipment wear. This invention aims to provide a high-efficiency centrifugal separator for lubricating oil production. By incorporating centrifugal separation components, strong centrifugal force is generated, causing impurities to settle onto the outer wall or outer layer of the centrifuge tank, separating the lubricating oil. The design of the outer and inner separation cylinders allows the lubricating oil to flow from the inner cylinder to the outer cylinder through rotation, preventing moisture from negatively impacting the lubricating oil's performance.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a high-efficiency centrifugal separator for lubricating oil production, comprising a separator housing, a separator base, a separator rotating device, and a separator inner barrel. The separator housing is fixedly installed on the outside of the separator base, and the separator housing is fixedly connected to the separator rotating device. The separator inner barrel is fixedly installed inside the separator housing. A centrifugal separation component is fixedly installed on the outside of the separator base. The centrifugal separation component includes a fitting fixing ring, a first gear, a first fixing rod, a fitting gear ring, and a second gear.
[0006] Preferably, a fixed rod is fixedly installed on the outside of the separator base, and a rotating shaft is rotatably connected to the outside of the fixed rod. A positioning ring is provided on the outside of the separation rotating device. The positioning ring is rotatably connected to the rotating shaft. A gear is fixedly installed on the outside of the rotating shaft. The meshing gear ring rotates outside of the separation rotating device, and the gear meshes with the meshing gear ring.
[0007] Preferably, a polygonal fixed column is rotatably connected to the outside of the first fixed rod, and a second gear is fixedly installed on the outside of the polygonal fixed column. The second gear meshes with the first gear. A second fixed ring is fixedly installed on the outside of the separating rotating device. A first motor is fixedly installed on the outside of the second fixed ring. A third rotating shaft is rotatably connected to the outside of the first motor. A rotating fitting block is fixedly installed on the outside of the third rotating shaft. A second fitting groove is opened on the outside of the rotating fitting block, and the second fitting groove can fit into the polygonal fixed column.
[0008] Preferably, the external part of the separating rotating device is fixedly installed with a fitting and fixing protrusion, and the external part of the first fixing rod is provided with a fitting and fixing groove, which can fit into the fitting and fixing protrusion.
[0009] Preferably, the outer surface of the meshing gear ring has a first meshing groove, a fixing ring is fixedly installed on the outer surface of the separator housing, a meshing protrusion is fixedly installed on the outer surface of the fixing ring, the meshing fixing ring is fixed on the outer surface of the separator housing, a second positioning groove is provided on the outer surface of the meshing fixing ring, the second positioning groove engages with the meshing protrusion, and a first positioning groove is provided on the outer surface of the meshing fixing ring, the first positioning groove engages with the first meshing groove.
[0010] Preferably, a first oil outlet hole is fixedly installed on the outside of the separator housing, a second oil outlet hole is fixedly installed on the outside of the separator housing, an outer separation cylinder is provided on the outside of the inner barrel of the separator, the outer separation cylinder communicates with the first oil outlet hole, and an inner separation cylinder is provided on the outside of the inner barrel of the separator, the inner separation cylinder communicates with the second oil outlet hole.
[0011] Preferably, the separator has a first separation hole on the outside of the inner barrel, a second hole on the outside of the inner barrel, a separation baffle fixedly installed on the outside of the inner barrel, and a circular fixing hole on the outside of the inner barrel, which communicates with the second hole.
[0012] Preferably, the number of the first gear is multiple sets arranged in a circular array.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] In this invention, by setting up a centrifugal separation component, centrifugal separation can generate strong centrifugal force to cause these impurities to settle to the outer wall or outer layer of the centrifugal tank, separating the lubricating oil, removing solid impurities from the lubricating oil, keeping the oil clean, preventing impurities from wearing and damaging mechanical parts, and removing water from the lubricating oil to prevent water from causing oil emulsification, oxidation or corrosion of equipment parts. By ensuring that the oil can evenly cover the mechanical parts, better lubrication effect can be provided, reducing friction and energy consumption.
[0015] In this invention, by designing an outer and inner separating cylinder, the lubricating oil can flow from the inner separating cylinder to the outer separating cylinder after separation due to the rotation of the inner cylinder. When the lubricating oil contains water, which typically has a higher density, the water is forced to separate and settle to the bottom of the outer cylinder during centrifugal separation, while the lighter oil concentrates in the inner cylinder. This helps remove water from the lubricating oil, preventing it from negatively impacting its performance. Furthermore, centrifugal separation efficiently removes fine particles, impurities, and other contaminants from the lubricating oil, resulting in purer oil, improved quality and performance, and better lubrication protection for the equipment during efficient and long-term operation. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0018] Figure 2 This is a schematic diagram of the separation and rotation device of this utility model.
[0019] Figure 3 This is a cross-sectional view of the separation and rotation device of this utility model.
[0020] Figure 4 This is a cross-sectional view of the outer shell structure of the separator equipment of this utility model.
[0021] Figure 5 This is a schematic diagram of the inner barrel structure of the separator of this utility model.
[0022] Figure 6 This is a cross-sectional view of the inner barrel structure of the separator of this utility model.
[0023] Figure 7 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.
[0024] Figure 8 This utility model Figure 4 Enlarged schematic diagram of the structure at point B.
[0025] In the diagram: 1. Separator housing; 101. Oil outlet hole 1; 102. Oil outlet hole 2; 103. Fitting protrusion; 104. Fixing ring; 2. Separator base; 201. Fixing rod 1; 202. Fitting gear ring; 203. Fitting groove 1; 204. Gear 1; 205. Shaft 1; 206. Fitting fixing ring; 207. Gear 2; 208. Polygonal fixing post; 209. Positioning groove 1; 210. 211. Positioning groove; 3. Fitting and fixing groove; 3. Separation rotating device; 301. Motor No. 1; 302. Fitting and fixing protrusion; 303. Positioning ring; 304. Rotating fitting block; 305. Fitting groove No. 2; 306. Fixing ring No. 2; 307. Rotating shaft No. 3; 4. Inner barrel of separator; 401. Separation hole No. 1; 402. Hole No. 2; 403. Outer cylinder of separator; 404. Separation baffle; 405. Ring fixing hole; 406. Inner cylinder of separator. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Example: Figure 1-8As shown, this utility model provides a high-efficiency centrifugal separator for lubricating oil production, including a separator housing 1, a separator base 2, a separator rotating device 3, and a separator inner barrel 4. The separator housing 1 is fixedly installed on the outside of the separator base 2, and the separator housing 1 is fixedly connected to the separator rotating device 3. The separator inner barrel 4 is fixedly installed inside the separator housing 1. A centrifugal separation component is fixedly installed on the outside of the separator base 2. The centrifugal separation component includes a fitting fixing ring 206, a first gear 204, a first fixing rod 201, a fitting gear ring 202, and a second gear 207.
[0028] A fixing rod 201 is fixedly installed on the outside of the separator base 2. A rotating shaft 205 is rotatably connected to the outside of the fixing rod 201. A positioning ring 303 is provided on the outside of the separation rotating device 3. The positioning ring 303 is rotatably connected to the rotating shaft 205. A gear 204 is fixedly installed on the outside of the rotating shaft 205. The meshing gear ring 202 rotates outside of the separation rotating device 3. The gear 204 meshes with the meshing gear ring 202.
[0029] By adopting the above technical solution, the engagement of the first gear 204 with the meshing gear ring 202 can drive the meshing gear ring 202 to rotate.
[0030] A polygonal fixed post 208 is rotatably connected to the first fixed rod 201. A second gear 207 is fixedly installed on the outside of the polygonal fixed post 208. The second gear 207 meshes with the first gear 204. A second fixed ring 306 is fixedly installed on the outside of the separation rotating device 3. A first motor 301 is fixedly installed on the outside of the second fixed ring 306. A third rotating shaft 307 is rotatably connected to the outside of the first motor 301. A rotating fitting block 304 is fixedly installed on the outside of the third rotating shaft 307. A second fitting groove 305 is opened on the outside of the rotating fitting block 304. The second fitting groove 305 can fit into the polygonal fixed post 208.
[0031] By adopting the above technical solution, the No. 2 gear 207 meshes with the No. 1 gear 204, and the No. 1 rotating shaft 205 can be driven to rotate by the rotation of the polygonal fixed column 208.
[0032] The external of the separation and rotation device 3 is fixedly installed with a fitting and fixing protrusion 302, and the external of the first fixing rod 201 is provided with a fitting and fixing groove 211, which can fit into the fitting and fixing protrusion 302.
[0033] By adopting the above technical solution, the fitting and fixing groove 211 and the fitting and fixing protrusion 302 can be fitted together, and the fitting and fixing protrusion 302 can be used to position and fit the separation and rotation device 3.
[0034] The outer side of the meshing gear ring 202 has a first meshing groove 203. A fixing ring 104 is fixedly installed on the outer side of the separator housing 1. A meshing protrusion 103 is fixedly installed on the outer side of the fixing ring 104. A meshing fixing ring 206 is fixed on the outer side of the separator housing 1. A second positioning groove 210 is opened on the outer side of the meshing fixing ring 206. The second positioning groove 210 meshes with the meshing protrusion 103. A first positioning groove 209 is opened on the outer side of the meshing fixing ring 206. The first positioning groove 209 meshes with the first meshing groove 203.
[0035] By adopting the above technical solution, the No. 2 positioning groove 210 is engaged with the No. 1 positioning groove 209 and the No. 1 engagement groove 203, and the engagement fixing ring 206 can be used to fix the engagement protrusion 103 and the engagement gear ring 202.
[0036] The separator housing 1 has a first oil outlet 101 fixedly installed on its exterior, and a second oil outlet 102 fixedly installed on its exterior. The separator inner barrel 4 has an outer separation cylinder 403 that communicates with the first oil outlet 101. The separator inner barrel 4 has an inner separation cylinder 406 that communicates with the second oil outlet 102.
[0037] By adopting the above technical solution, the lubricating oil in the separator can be discharged by connecting the outer cylinder 403 with the first oil outlet 101 and the inner cylinder 406 with the second oil outlet 102.
[0038] The separator inner barrel 4 has a first separation hole 401 on its outside, and a second hole 402 on its outside. A separation baffle 404 is fixedly installed on the outside of the separator inner barrel 406. A circular fixing hole 405 is provided on the outside of the separator inner barrel 406, and the circular fixing hole 405 is connected to the second hole 402.
[0039] By adopting the above technical solution, the lubricating oil can be separated by connecting the annular fixing hole 405 with the second hole 402.
[0040] The number of gears 204 is multiple and arranged in a circular array.
[0041] By adopting the above technical solution, the stability of the device can be improved by using multiple sets of No. 1 gears 204 arranged in a circular array.
[0042] Working principle: When a high-efficiency centrifugal separator for lubricating oil production is needed, the lubricating oil flows from the second oil outlet 102 into the inner separator cylinder 406. Further, the first motor 301 drives the third rotating shaft 307 to rotate. The rotation of the third rotating shaft 307 drives the rotating fitting block 304 to rotate, which in turn drives the polygonal fixed column 208 to rotate. The rotation of the rotating fitting block 304 then drives the second gear 207 to rotate. Further, the rotation of the second gear 207... The movement can drive the first gear 204 to rotate, which in turn drives the interlocking gear ring 202 to rotate, and the interlocking gear ring 202 to rotate, which in turn drives the interlocking fixed ring 206 to rotate. Finally, the rotation of the interlocking fixed ring 206 drives the inner barrel 4 of the separator fixed outside the separator housing 1 to rotate. By using centrifugal separation to generate strong centrifugal force, these impurities are made to settle to the outer wall or outer layer of the centrifugal barrel, separating the lubricating oil, removing solid impurities from the lubricating oil, and keeping the oil clean.
[0043] Meanwhile, by rotating the inner barrel 4 of the separator, the lubricating oil in the inner barrel 406 can pass through the inner wall of the separation baffle 404 under the action of centrifugal force, and flow through the second hole 402 and the first separation hole 401, and finally flow into the outer barrel 403, thus completing the separation of lubricating oil. The rotation of the inner barrel 4 in the inner barrel 406 allows the separated lubricating oil to flow into the outer barrel 403. When the lubricating oil contains water, the density of water is usually high. During the centrifugal separation process, the water will be forced to separate and settle to the bottom of the outer barrel, while the lighter oil will concentrate in the inner barrel. By helping to remove water from the lubricating oil, the water is prevented from having a negative impact on the performance of the lubricating oil. Centrifugal separation can efficiently remove fine particles, impurities and other contaminants from the lubricating oil, making the oil purer and improving the quality and performance of the lubricating oil.
[0044] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A high-efficiency centrifugal separator for lubricating oil production, comprising a separator device housing (1), a separator base (2), a separator rotating device (3) and a separator inner drum (4), characterized in that: The separator equipment shell (1) is fixedly installed outside the separator base (2), the separator equipment shell (1) is fixedly connected with the separator rotating device (3), the separator inner barrel (4) is fixedly installed inside the separator equipment shell (1), the separator base (2) is fixedly installed with a centrifugal separation assembly outside, the centrifugal separation assembly includes a fitting fixed ring (206), a first gear (204), a first fixed rod (201), a fitting gear ring (202) and a second gear (207).
2. A high-efficiency centrifugal separator for producing lubricating oil according to claim 1, characterized in that, The separator base (2) is fixedly installed with a first fixed rod (201) outside, the first fixed rod (201) is rotatably connected with a first rotating shaft (205) outside, the separator rotating device (3) is provided with a positioning ring (303) outside, the positioning ring (303) is rotatably connected with the first rotating shaft (205), the first rotating shaft (205) is fixedly installed with a first gear (204) outside, the fitting gear ring (202) is rotatable outside the separator rotating device (3), and the first gear (204) is engaged with the fitting gear ring (202).
3. A high efficiency centrifugal separator for producing lubricating oil as claimed in claim 2, characterized in that The first fixed rod (201) is rotatably connected with a polygonal fixed column (208) outside, the polygonal fixed column (208) is fixedly installed with a second gear (207) outside, the second gear (207) is engaged with the first gear (204), the separator rotating device (3) is fixedly installed with a second fixed ring (306) outside, the second fixed ring (306) is fixedly installed with a first motor (301) outside, the first motor (301) is rotatably connected with a third rotating shaft (307) outside, the third rotating shaft (307) is fixedly installed with a rotating fitting block (304) outside, the rotating fitting block (304) is provided with a second fitting groove (305) outside, and the second fitting groove (305) is fittable with the polygonal fixed column (208).
4. A high efficiency centrifugal separator for producing lubricating oil as claimed in claim 1, characterized in that, The separator rotating device (3) is fixedly installed with a fitting fixed protrusion (302) outside, the first fixed rod (201) is provided with a fitting fixed groove (211) outside, and the fitting fixed groove (211) is fittable with the fitting fixed protrusion (302).
5. A high efficiency centrifugal separator for producing lubricating oil as claimed in claim 1, characterized in that, The fitting gear ring (202) is provided with a first fitting recess (203) outside, the separator equipment shell (1) is fixedly installed with a fixed ring (104) outside, the fixed ring (104) is fixedly installed with a fitting protrusion block (103) outside, the fitting fixed ring (206) is fixed outside the separator equipment shell (1), the fitting fixed ring (206) is provided with a second positioning groove (210) outside, the second positioning groove (210) is fittable with the fitting protrusion block (103), the fitting fixed ring (206) is provided with a first positioning groove (209) outside, and the first positioning groove (209) is fittable with the first fitting recess (203).
6. A high efficiency centrifugal separator for producing lubricating oil as claimed in claim 1, characterized in that, The separator equipment shell (1) is externally fixedly installed with a first oil outlet hole (101), the separator equipment shell (1) is externally fixedly installed with a second oil outlet hole (102), the separator inner barrel (4) is externally provided with a separation outer cylinder (403), the separation outer cylinder (403) is in communication with the first oil outlet hole (101), the separator inner barrel (4) is externally provided with a separation inner cylinder (406), and the separation inner cylinder (406) is in communication with the second oil outlet hole (102).
7. A high efficiency centrifugal separator for producing lubricating oil as claimed in claim 6, characterized in that The separator inner barrel (4) is externally provided with a first separation hole (401), the separation inner cylinder (406) is externally provided with a second hole (402), the separation inner cylinder (406) is externally fixedly installed with a separation baffle (404), the separation inner cylinder (406) is externally provided with a circular ring fixed hole (405), and the circular ring fixed hole (405) is in communication with the second hole (402).
8. A high efficiency centrifugal separator for producing lubricating oil as claimed in claim 1, characterized in that, The number of the first gear (204) is multiple groups and is in a circumferential array.