CN115419816A - Large and medium-sized motor lubricating oil online purification device - Google Patents
Large and medium-sized motor lubricating oil online purification device Download PDFInfo
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- CN115419816A CN115419816A CN202210854400.3A CN202210854400A CN115419816A CN 115419816 A CN115419816 A CN 115419816A CN 202210854400 A CN202210854400 A CN 202210854400A CN 115419816 A CN115419816 A CN 115419816A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N2039/007—Using strainers
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- General Engineering & Computer Science (AREA)
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Abstract
An oil cylinder is installed inside the machine shell, a motor shaft is installed inside the oil cylinder, an oil outlet pipeline is fixedly installed at the bottom of a bottom plate of the oil cylinder, an oil inlet pipeline is fixedly installed on the right side of the oil cylinder, an oil filter is fixedly installed on the right side inside the machine shell, and the oil outlet pipeline and the oil inlet pipeline are respectively communicated with the oil filter; meanwhile, a cleaning mechanism is also arranged in the oil cylinder. After the online oil filtering function is realized through technical improvement measures, impurities such as oil sludge, metal particles and oxides thereof in the lubricating oil can be removed online when the main unit operates normally, the circulation utilization rate of the lubricating oil is improved, the generation of waste oil is reduced, resources are saved, the annual maintenance workload can be greatly reduced, and the service life of the lubricating oil is ensured.
Description
Technical Field
The invention relates to the technical field of large and medium-sized vertical motors, in particular to an online purification device for lubricating oil of a large and medium-sized motor.
Background
Lubricating oil of a common large and medium vertical motor is contained in the oil cylinder and is lubricated by the lubricating oil, so that the service life of equipment is prolonged; meanwhile, heat dissipation is carried out, and safe operation of equipment is guaranteed.
However, the existing motor lubricating oil has the following problems in the use process:
1. deterioration of oil quality
Lubricating oil in upper and lower oil cylinders of a synchronous motor can slowly change physical and chemical properties with the increase of service time no matter in a starting operation state or a stopping state, so that the lubricating oil is called as an oil degradation process, and the main reasons are as follows: firstly, the oil is oxidized due to the contact with air, so that moisture, dust and impurities in the oil are increased, the oil is emulsified due to the moisture, and the oxidation of the oil is further promoted; secondly, the oxidation of oil can be accelerated by the temperature rise in the operation process; thirdly, ultraviolet rays in light rays and shaft current in operation decompose oil and accelerate degradation; metal and nonmetal particles generated by bearing abrasion increase mechanical impurities in the oil, and due to the reasons, the lubricating oil can be continuously degraded in the using process to cause color deepening and viscosity increasing, and meanwhile, colloid and oil sludge precipitates are separated out;
therefore, measures such as ensuring the installation quality, reducing the contact between lubricating oil and air through a respirator, normal load operation of the unit, ensuring the supply of cooling water, preventing shaft current and the like are taken, and meanwhile, the oil color and the oil quality of the lubricating oil of the unit are checked before and after flood every year, but impurities in the oil are increased year by year, the impurities are difficult to clean even if the oil is changed, and the oil cylinder can be cleaned up and filled with new oil only when the general unit is overhauled.
2. The maintenance workload is large
When a common motor is used for oiling or oil changing, lubricating oil is injected or pumped out by an oil filter or an oil pump through opening an observation hole on an oil cylinder cover, so that time and labor are wasted, and the workload is large;
the tile frame, thrust bearing etc. in the hydro-cylinder can not be dismantled at will, consequently, the part in the hydro-cylinder can't be taken out, and this brings very big difficulty to clearance hydro-cylinder bottom colloid form, fatlute precipitate etc. because of original impurity can't clear up totally, often leads to after the new oil of change, and oil still can not satisfy the requirement.
3. Influence the continuity of unit operation
The oil change or oil purification of the motor can only be carried out when the unit stops running, and great influence is generated on the unit running for a long time.
Disclosure of Invention
Aiming at the problems, the invention provides the large and medium-sized motor lubricating oil on-line purification device which is convenient to operate, saves manpower and improves the purification reliability.
The invention provides the following technical scheme: the oil filter comprises a shell, wherein an oil cylinder is arranged in the shell, a motor shaft is arranged in the oil cylinder, an oil outlet pipeline is fixedly arranged at the bottom of a bottom plate of the oil cylinder, an oil inlet pipeline is fixedly arranged on the right side of the oil cylinder, switch valves are fixedly arranged on the outer surfaces of the oil outlet pipeline and the oil inlet pipeline, an oil filter is fixedly arranged on the right side in the shell, and the oil outlet pipeline and the oil inlet pipeline are respectively communicated with the oil filter;
a cleaning mechanism is arranged in the oil cylinder and below the motor shaft, the cleaning mechanism comprises a base, a base is arranged in the oil cylinder and on the outer surface of the motor shaft, a supporting box is fixedly arranged at the top of the base, a cleaning plate is arranged at the bottom of the supporting box, a cleaning roller is rotatably connected at the top of the supporting box,
the top of the base is provided with an annular sliding chute and an annular groove which are arranged inside and outside, the inner wall of the groove is fixedly provided with transmission teeth which are arranged at equal intervals, the outer surface of the motor shaft is fixedly provided with a linkage gear, the top of the base and above the sliding chute are provided with a transmission gear in a sliding way,
the linkage gear is meshed with the transmission gear, the transmission gear is meshed with the transmission gear on the inner wall of the groove,
the supporting box is fixedly arranged on a middle shaft of the transmission gear.
The bottom of cleaning plate is used for laminating with the surface of bottom plate, the surface of cleaning roller is used for laminating with the inner wall of hydro-cylinder.
The cleaning roller comprises a roller and a supporting shaft, the supporting shaft is arranged at the top of the supporting box, and the roller is rotatably connected to the supporting shaft.
The cleaning roller comprises a push plate, an inner plate and an outer plate, the push plate is rotatably connected on the supporting box,
the inner plate is movably arranged on the supporting box and is positioned at one side of the push plate, two push blocks are fixedly arranged at one side of the inner plate far away from the push plate,
the outer plate is fixedly arranged on the supporting box and positioned at the outer side of the inner plate,
a rotating shaft is arranged in the outer plate, a pair of scraping plates is movably arranged on the rotating shaft, and the pushing blocks correspond to the scraping plates one by one and are used for pushing the scraping plates;
one side of the inner plate, which is close to the push plate, is an inclined surface and is used for driving the inner plate to act when the push plate contacts the inclined surface;
the inner plate is movably arranged on the outer plate.
The outer plate is provided with a jack on one side close to the inner plate, an inserting rod is fixedly mounted on one side of the inner plate close to the outer plate, and the inserting rod is arranged in the jack in a matched mode.
The bottom of bottom plate is equipped with two at least oil drain holes, oil outlet pipeline and oil drain hole intercommunication.
The invention has the following beneficial effects:
1. this large and medium-sized motor lubricating oil online purification device, through setting up clearance mechanism, when carrying out the inside lubricating oil filtration of motor, through clearance mechanism with the inside lubricating oil of casing, impurity etc. can all discharge and purify, drive linkage gear through the motor shaft and rotate, linkage gear and transmission gear meshing, thereby drive and support box and cleaning roller and be circular motion, remaining lubricating oil with the hydro-cylinder inner wall, impurity etc. scrape off, and push the inside of oil drain hole with it through the clearance board, carry to the inside of oil filter through oil outlet pipeline and purify.
2. After the online oil filtering function of the large and medium-sized motor lubricating oil is realized through technical improvement measures, impurities such as oil sludge, metal particles and oxides thereof in the lubricating oil can be removed online when a main unit operates normally, the circulation utilization rate of the lubricating oil is improved, the generation of waste oil is reduced, resources are saved, the annual maintenance workload can be greatly reduced, the service life of the lubricating oil is ensured, the safety and the reliability of the main unit are effectively improved, the shutdown maintenance frequency is reduced, the maintenance period of the unit is prolonged, the fine management level is further improved, and the economic benefit is very obvious.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the cylinder;
FIG. 3 is a schematic view of a connection structure of the base and the support box;
FIG. 4 is a schematic view of a cleaning roll;
in the figure: 1. a housing; 2. an oil cylinder; 3. a motor shaft; 4. a base plate; 5. an oil outlet pipeline; 6. an oil inlet pipeline; 7. an on-off valve; 8. an oil filter; 9. an oil discharge hole;
10. a cleaning mechanism; 1001. a base; 1002. a support box; 1003. cleaning the plate; 1004. cleaning the roller; 1005. a chute; 1006. a groove; 1007. a transmission gear; 1008. a linkage gear; 1009. a transmission gear; 1010. an intermediate shaft; 1011. pushing the plate; 1012. an inner plate; 1013. a push block; 1014. an outer plate; 1015. a rotating shaft; 1016. a squeegee; 1017. a jack; 1018. and (4) inserting a rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-4, the present invention includes a casing 1, an oil cylinder 2 is fixedly installed inside the casing 1, a motor shaft 3 is rotatably installed inside the oil cylinder 2, an oil outlet pipe 5 is fixedly installed at the bottom of a bottom plate 4 of the oil cylinder 2, an oil inlet pipe 6 is fixedly installed at the right side of the oil cylinder 2, switch valves 7 are fixedly installed on the outer surfaces of the oil outlet pipe 5 and the oil inlet pipe 6, an oil filter 8 is fixedly installed at the right side inside the casing 1, and the oil outlet pipe 5 and the oil inlet pipe 6 are respectively communicated with the oil filter 8;
a cleaning mechanism 10 is arranged in the oil cylinder 2 and below the motor shaft 3, the cleaning mechanism 10 comprises a base 1001, the base 1001 is arranged on the outer surface of the motor shaft 3, a supporting box 1002 is fixedly arranged at the top of the base 1001, a cleaning plate 1003 is arranged at the bottom of the supporting box 1002, a cleaning roller 1004 is rotatably connected to the outer side of the top of the supporting box 1002,
the top of the base 1001 is provided with an annular chute 1005 and an annular groove 1006 which are arranged inside and outside, the center lines of the chute and the groove are positioned on the same straight line, the inner wall of the groove 1006 is fixedly provided with driving teeth 1007 which are arranged at equal intervals,
a linkage gear 1008 is mounted on the outer surface of the motor shaft 3, a transmission gear 1009 is slidably mounted on the top of the base 1001 above the chute 1005,
the linkage gear 1008 is meshed with the transmission gear 1009, and the transmission gear 1009 is meshed with the transmission gear 1007 on the inner wall of the groove 1006, so that the action reliability is ensured.
In the working process of the invention, the oil filter 8 is arranged, so that the oil outlet pipeline 5 and the oil inlet pipeline 6 can be conveniently connected, and the oil in the oil cylinder can be filtered in time.
Through setting up clearance mechanism, when carrying out the inside lubricating oil of motor and filtering, through clearance mechanism with the inside lubricating oil of casing, impurity etc. can all discharge and purify, drive linkage gear through the motor shaft and rotate, linkage gear and transmission gear meshing, thereby drive supporting box and cleaning roller and be circular motion, with remaining lubricating oil of hydro-cylinder inner wall, scraping impurity etc. and falling, and push the inside of oil drain hole with it through the clearance board, purify to the inside of oil filter through oil outlet pipeline transport.
The bottom of the cleaning plate 1003 is used for being attached to the surface of the bottom plate 4, and the outer surface of the cleaning roller 1004 is used for being attached to the inner wall of the oil cylinder 2.
Therefore, lubricating oil and impurities can be conveniently and reliably discharged from the oil cylinder.
The first embodiment of the cleaning roller in the invention is as follows:
the cleaning roller 1004 includes a roller and a support shaft (not shown) provided at the top of the support case 1002, and the roller is rotatably connected to the support shaft.
Therefore, the inner wall of the oil cylinder is directly cleaned through the rotation of the roller on the supporting shaft, and the processing is convenient.
The second embodiment of the cleaning roller in the invention is as follows:
the cleaning roller 1004 comprises a push plate 1011, an inner plate 1012 and an outer plate 1014, the push plate 1011 is rotatably connected to the support box 1002,
the inner plate 1012 is movably arranged on the support box 1002 and is positioned at one side of the push plate 1011, two push blocks 1013 are fixedly arranged at one side of the inner plate 1012 far away from the push plate 1011,
the outer plate 1014 is fixedly provided on the support case 1002 and positioned outside the inner plate 1012,
a rotating shaft 1015 is installed inside the outer plate 1014, a pair of scrapers 1016 are movably installed on the rotating shaft 1015, and the push blocks 1013 are in one-to-one correspondence with the scrapers 1016 and are used for pushing the corresponding scrapers;
the scraper is pushed to act through the push block, and the scraper can reset through setting of a spring, a torsion spring and the like, so that the scraper is convenient and reliable.
One side of the inner plate 1012 close to the push plate 1011 is an inclined surface, and when the push plate 1011 contacts the inclined surface, the inner plate 1012 is driven to act;
the inner plate 1012 is movably mounted to the outer plate 1014.
The flexible cleaning action is as follows: support the box and rotate the in-process, the rotation will take place for the push pedal to promote the inner panel, make the ejector pad promote the scraper blade and rotate to the outside, thereby scrape better to hydro-cylinder inner wall, be convenient for discharge lubricating oil and impurity reach purifying effect better. In application, the inner plate and the outer plate can be respectively provided with two plates.
An insertion hole 1017 is formed in one side, close to the inner plate 1012, of the outer plate 1014, an insertion rod 1018 is fixedly mounted on one side, close to the outer plate 1014, of the inner plate 1012, and the insertion rod 1018 is fittingly arranged in the insertion hole 1017. Therefore, the inner plate can move relative to the outer plate conveniently, and the pushing block is ensured to drive the scraper to carry out flexible scraping action.
The bottom of bottom plate 4 is equipped with two at least oil drain holes 9, oil outlet pipe 5 and oil drain hole 9 intercommunication improve drainage efficiency. The surface of the bottom plate can be arranged to be conical, so that the oil can be collected to the oil discharge hole conveniently, and the subsequent discharge is facilitated.
This big-and-middle-sized motor lubricating oil online purification device, through setting up clearance mechanism 10, when carrying out the inside lubricating oil filtration of motor, can all discharge through clearance mechanism 10 with the inside lubricating oil of casing 1 and purify, it rotates to drive linkage gear 1008 through motor shaft 3, linkage gear and transmission gear meshing, thereby, it is circular motion to leisurely drive support box 1002, with the remaining lubricating oil of hydro-cylinder 2 inner wall, impurity etc. scrape off, and push it into the inside of oil drain hole 9 through clearance board 1003, carry to the inside of oil filter 8 through oil outlet pipe 5 and purify, and rotate at pivoted process push pedal 1011, thereby promote inner panel 1012, make ejector pad 1013 promote scraper blade 1016 to rotate to the outside, thereby better scrape off hydro-cylinder 2 inner wall, so that strike off lubricating oil better, impurity etc., better reach purifying effect.
The invention has the following advantages:
1) Oil filtering (on-line oil filtering) without stopping the machine set during operation is realized;
2) The operation time is shortened, and the original shutdown oil filtering time is shortened to half an hour per unit from 4 hours per unit;
3) The workload of oil filtering and oil cylinder cleaning is greatly reduced, the original oil filtering needs to disassemble an oil cylinder cover, pump oil to other containers, clean the oil and pump the oil back into the oil cylinder, the workload is large, after modification, the oil inlet and outlet of the oil filter 8 are directly connected through a quick connector, and then the circular oil filtering is realized;
4) The oil filtering is more thorough, the oil in the oil cylinder can be completely pumped out, and meanwhile, the filtered clean oil is utilized to wash the internal parts of the oil cylinder, so that impurities which cannot be cleaned originally can be cleaned out, and the oil filtering effect is greatly improved;
5) According to actual needs, closed-loop oil filtering during operation, closed-loop oil filtering after shutdown and open-loop oil filtering after shutdown can be realized, and different oil filtering effects are achieved;
6) The motor running service life is prolonged, online closed-loop oil filtering can be performed on a unit irregularly for a long-term running motor, moisture, impurities and the like in lubricating oil are removed in time, the degradation of the lubricating oil is delayed, the lubricating effect of a motor bearing is improved, the running service life of the motor is prolonged, and the problems that the motor lubricating oil purification efficiency is low and the degradation of the oil is accelerated due to the decomposition of the oil by a running shaft current in the prior art are solved; and fourthly, the lubricating oil is continuously degraded in the using process to cause the color to become dark and the viscosity to increase, and simultaneously, the lubricating oil has the problems of colloid and oil sludge sediment precipitation.
It should be noted that although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a large and medium-sized motor lubricating oil online purification device, includes casing (1), hydro-cylinder (2) are installed to the centre of casing (1), the internally mounted of hydro-cylinder (2) has motor shaft (3), its characterized in that: an oil outlet pipeline (5) is fixedly installed at the bottom of a bottom plate (4) of the oil cylinder (2), an oil inlet pipeline (6) is fixedly installed on the right side of the oil cylinder (2), switch valves (7) are fixedly installed on the outer surfaces of the oil outlet pipeline (5) and the oil inlet pipeline (6), an oil filter (8) is fixedly installed on the right side inside the shell (1), and the oil outlet pipeline (5) and the oil inlet pipeline (6) are respectively communicated with the oil filter (8);
a cleaning mechanism (10) is arranged in the oil cylinder (2) and below the motor shaft (3), the cleaning mechanism (10) comprises a base (1001), the base (1001) is positioned on the outer surface of the motor shaft (3), a supporting box (1002) is fixedly arranged at the top of the base (1001), a cleaning plate (1003) is arranged at the bottom of the supporting box (1002), a cleaning roller (1004) is rotatably connected to the outer side of the top of the supporting box (1002),
the top of the base (1001) is provided with an annular sliding chute (1005) and an annular groove (1006) which are arranged inside and outside, the inner wall of the groove (1006) is fixedly provided with transmission teeth (1007) which are arranged at equal intervals,
a linkage gear (1008) is installed on the outer surface of the motor shaft (3), a transmission gear (1009) is installed on the top of the base (1001) and above the sliding groove (1005) in a sliding manner,
the linkage gear (1008) is meshed with the transmission gear (1009), the transmission gear (1009) is meshed with the transmission teeth (1007) on the inner wall of the groove (1006),
the supporting box (1002) is fixedly arranged on an intermediate shaft (1010) of the transmission gear (1009).
2. The on-line purification device for the lubricating oil of the large and medium-sized motor as claimed in claim 1, wherein: the bottom of the cleaning plate (1003) is used for being attached to the surface of the bottom plate (4), and the outer surface of the cleaning roller (1004) is used for being attached to the inner wall of the oil cylinder (2).
3. The on-line purification device for lubricating oil of large and medium-sized motors as claimed in claim 1 or 2, wherein: the cleaning roller (1004) comprises a roller and a supporting shaft, the supporting shaft is arranged at the top of the supporting box (1002), and the roller is rotatably connected to the supporting shaft.
4. The on-line purification device for the lubricating oil of the large and medium-sized motor according to claim 1 or 2, characterized in that: the cleaning roller (1004) comprises a push plate (1011), an inner plate (1012) and an outer plate (1014), the push plate (1011) is rotatably connected to the support box (1002),
the inner plate (1012) is movably arranged on the support box (1002) and is positioned at one side of the push plate (1011), two push blocks (1013) are fixedly arranged at one side of the inner plate (1012) far away from the push plate (1011),
the outer plate (1014) is fixedly arranged on the support box (1002) and is positioned at the outer side of the inner plate (1012),
a rotating shaft (1015) is installed inside the outer plate (1014), a pair of scraping plates (1016) are movably installed on the rotating shaft (1015), and the push blocks (1013) correspond to the scraping plates (1016) one by one and are used for pushing the scraping plates;
one side of the inner plate (1012) close to the push plate (1011) is an inclined plane, and when the push plate (1011) contacts the inclined plane, the inner plate (1012) is driven to act;
the inner plate (1012) is movably arranged on the outer plate (1014).
5. The on-line purification device for the lubricating oil of the large and medium-sized motor according to claim 4, characterized in that:
one side of the outer plate (1014) close to the inner plate (1012) is provided with a jack (1017), one side of the inner plate (1012) close to the outer plate (1014) is fixedly provided with a plug rod (1018), and the plug rod (1018) is fittingly arranged in the jack (1017).
6. The on-line purification device for the lubricating oil of the large and medium-sized motor as claimed in claim 1, wherein: the bottom of bottom plate (4) is equipped with two at least oil drain holes (9), oil outlet pipeline (5) and oil drain hole (9) intercommunication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210854400.3A CN115419816A (en) | 2022-07-20 | 2022-07-20 | Large and medium-sized motor lubricating oil online purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210854400.3A CN115419816A (en) | 2022-07-20 | 2022-07-20 | Large and medium-sized motor lubricating oil online purification device |
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| Publication Number | Publication Date |
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| CN115419816A true CN115419816A (en) | 2022-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210854400.3A Pending CN115419816A (en) | 2022-07-20 | 2022-07-20 | Large and medium-sized motor lubricating oil online purification device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3477689D1 (en) * | 1983-12-21 | 1989-05-18 | Meulen Alfred V D | Device for removing water and/or other volatile impurities from lubrication oil |
| CA2317086A1 (en) * | 2000-08-28 | 2002-02-28 | Michael Mazzuca | Centrifugal cleaner for industrial lubricants |
| CN200954651Y (en) * | 2006-09-26 | 2007-10-03 | 陈龙 | Improved disc-rotating type brick compression machine |
| CN106239330A (en) * | 2016-07-16 | 2016-12-21 | 张�浩 | A kind of energy automatic scraping deimpurity petroleum pipeline inwall rust removalling equipment |
| CN207986756U (en) * | 2018-01-15 | 2018-10-19 | 天津科洁环保科技有限公司 | A kind of sanitary sewage water-oil separating filter device |
| CN213576751U (en) * | 2020-10-28 | 2021-06-29 | 广东中南昆仑润滑油有限公司 | Anti-leakage high-efficiency impurity-removing lubricating oil filter |
| CN215711933U (en) * | 2021-04-29 | 2022-02-01 | 上海毅帆环保科技有限公司 | Oil-water purification device for pollution prevention and treatment of ship |
-
2022
- 2022-07-20 CN CN202210854400.3A patent/CN115419816A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3477689D1 (en) * | 1983-12-21 | 1989-05-18 | Meulen Alfred V D | Device for removing water and/or other volatile impurities from lubrication oil |
| CA2317086A1 (en) * | 2000-08-28 | 2002-02-28 | Michael Mazzuca | Centrifugal cleaner for industrial lubricants |
| CN200954651Y (en) * | 2006-09-26 | 2007-10-03 | 陈龙 | Improved disc-rotating type brick compression machine |
| CN106239330A (en) * | 2016-07-16 | 2016-12-21 | 张�浩 | A kind of energy automatic scraping deimpurity petroleum pipeline inwall rust removalling equipment |
| CN207986756U (en) * | 2018-01-15 | 2018-10-19 | 天津科洁环保科技有限公司 | A kind of sanitary sewage water-oil separating filter device |
| CN213576751U (en) * | 2020-10-28 | 2021-06-29 | 广东中南昆仑润滑油有限公司 | Anti-leakage high-efficiency impurity-removing lubricating oil filter |
| CN215711933U (en) * | 2021-04-29 | 2022-02-01 | 上海毅帆环保科技有限公司 | Oil-water purification device for pollution prevention and treatment of ship |
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