CN111097226B - Vacuum oil filter - Google Patents
Vacuum oil filter Download PDFInfo
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- CN111097226B CN111097226B CN201911152114.7A CN201911152114A CN111097226B CN 111097226 B CN111097226 B CN 111097226B CN 201911152114 A CN201911152114 A CN 201911152114A CN 111097226 B CN111097226 B CN 111097226B
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- oil
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- oil mist
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
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- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to the technical field of filtering equipment and discloses a vacuum oil filter which comprises an oil inlet pipe, wherein an oil inlet valve is fixedly installed in the middle of the oil inlet pipe, a prefilter is fixedly installed at one end of the oil inlet pipe, a heater is connected to the upper part of the prefilter through a pipe, a vacuum cylinder is connected to one side of the heater through a pipe, and an oil mist spray head is fixedly installed on the pipe on one side of the heater. Compared with the prior art, this application technical scheme adopts the mode that sets up the activity from top to bottom of piston needle in the nozzle of oil mist shower nozzle, get through the nozzle of oil mist shower nozzle, the spun oil mist can promote the piston needle upwards in the follow oil mist shower nozzle, when the nozzle blocks up, the oil mist blowout is less, the motive force to the piston needle reduces, can't promote spring compression, receive spring elastic's influence, make piston needle downstream, pass the nozzle, reach the mediation effect to the oil mist shower nozzle, the formation of oil mist has been guaranteed, the result of use of oil mist shower nozzle has been promoted.
Description
Technical Field
The invention relates to the technical field of filtering equipment, in particular to a vacuum oil filter.
Background
The vacuum oil filter is a product for performing on-site oil filtering and oil supplementing aiming at various oil immersed transformers, oil immersed current and voltage transformers and high-voltage less-oil circuit breakers, can perform on-site hot oil circulating drying on the equipment, and is particularly more effective in the on-site hot oil circulating drying of the oil immersed current and voltage transformers and the high-voltage less-oil circuit breakers.
Referring to the attached drawings 1-2 of the specification, a vacuum oil filter is designed according to the principle that water and oil have different boiling points, firstly, a vacuum pump 12 is started to pump out air in a vacuum cylinder 5, so that a vacuum environment is formed in the vacuum cylinder 5, an oil inlet valve 2 is opened, oil is injected into a primary filter 3 through an oil inlet pipe 1 for primary filtration, the filtered oil is injected into a heater 4 for heating, so that the temperature of the oil reaches about 75 ℃, the oil mist is formed by the action of the oil mist spray head 6 and sprayed into the vacuum cylinder 5, the boiling point of water is lowered under the vacuum environment, the water becomes water vapor at the moment and is separated from oil, the water vapor enters the condenser 10 from the top of the vacuum cylinder 5 to be condensed, stored in the storage tank 13, the liquid oil is pumped from the bottom of the vacuum cylinder 5 by the action of the oil discharge pump 14, and the oil enters the fine filter 16 for final fine filtration and is discharged from the oil outlet pipe 18.
The existing vacuum oil filter has the following defects:
firstly, the nozzle hole of oil mist shower nozzle 6 is less, and oil only has more impurity through simple filtration, and itself still has, and in long-time use, the nozzle hole can be stopped up by impurity, influences oil mist shower nozzle 6 and to the spraying effect of oil to influence the separation effect of water and oil, cause the unable problem of working of oil mist shower nozzle 6 even.
Secondly, block up the back at oil mist shower nozzle 6, need stop equipment and wash oil mist shower nozzle 6, influence the filtration efficiency of equipment to oil, and only 6 oil mist shower nozzles spray to the heater 4 in, the equipment is relatively poor to the oil spraying efficiency in the heater 4 for the poor problem of equipment water oil separating efficiency.
Disclosure of Invention
The invention provides a vacuum oil filter which has the advantages of preventing an oil mist spray head from being blocked and enhancing the oil-water separation efficiency, and solves the problems that the oil mist spray head is easy to block and the water-oil separation effect is poor.
The invention provides the following technical scheme: a vacuum oil filter comprises an oil inlet pipe 1, wherein an oil inlet valve is fixedly installed in the middle of the oil inlet pipe 1, a primary filter is fixedly installed at one end of the oil inlet pipe 1, a heater is connected to the upper portion of the primary filter through a pipe, a vacuum cylinder is connected to one side of the heater through a pipe, an oil mist spray head is fixedly installed on the pipe on one side of the heater, an observation window is arranged on the front surface of the vacuum cylinder, a vacuum meter is fixedly installed at the top of the vacuum cylinder, a vacuum valve is fixedly installed at the top of the vacuum cylinder through the vacuum meter, a condenser is installed at one side of the vacuum cylinder through a vacuum valve pipe, a check valve is fixedly installed at the bottom of the condenser, a vacuum pump is fixedly installed below the condenser through the check valve, a water storage tank is connected to one side of the condenser through a pipe, an oil discharge pump is fixedly installed at the bottom of the vacuum cylinder through a pipe, and a pressure gauge is fixedly installed at one side of the oil discharge pump, one side fixed mounting of manometer has the secondary filter, one side fixed mounting of secondary filter has an oil pipe, the middle part fixed mounting who goes out the oil pipe has the check valve, the nozzle inclination has been seted up at the top of oil mist shower nozzle, the bottom fixed mounting of oil mist shower nozzle has four corners oil pipe, the top fixed mounting of oil mist shower nozzle has the support column, the top fixed mounting of support column has the fixed plate, the lower fixed surface of fixed plate installs fixed cover, the inside fixed mounting of fixed cover has the spring, the bottom fixed mounting of fixed cover has the seal cover, the bottom fixed mounting of spring has the piston needle.
Preferably, the inclination angle of the nozzle inclination angle is small.
Preferably, the mounting position of the oil mist spray head is shifted downwards and is positioned on the lower half part of the vacuum cylinder.
Preferably, the four-corner oil pipe is cross-shaped, and the diameter of the four-corner oil pipe is two thirds of the diameter of the inner cylinder of the vacuum cylinder.
Preferably, the piston needle is in a spring-relaxed state, and the bottom end of the piston needle just penetrates through the spray hole of the oil mist spray head.
Preferably, the length of the support column is controlled above the oil mist spray shape, and the length of the fixing plate is matched with the inclination angle of the nozzle.
The invention has the following beneficial effects:
compared with the prior art, this application technical scheme adopts the mode that sets up the activity from top to bottom of piston needle in the nozzle of oil mist shower nozzle, get through the nozzle of oil mist shower nozzle, the spun oil mist can promote the piston needle upwards in the follow oil mist shower nozzle, when the nozzle blocks up, the oil mist blowout is less, the motive force to the piston needle reduces, can't promote spring compression, receive spring elastic's influence, make piston needle downstream, pass the nozzle, reach the mediation effect to the oil mist shower nozzle, the formation of oil mist has been guaranteed, the result of use of oil mist shower nozzle has been promoted.
Compared with the prior art, this application technical scheme adopts four corners oil pipe to oil mist shower nozzle distribution installation, reduce the angle of inclination at nozzle inclination, make the oil mist injection scope reduce, it is too big to prevent the crisscross scope of oil mist shower nozzle spraying oil mist that distributes, influence water oil separation effect, a plurality of oil mist shower nozzles of installation reinforcing equipment's water oil separation efficiency, and when an oil mist shower nozzle damages, other oil mist shower nozzle still can use, need not stop equipment at once and maintain after the oil mist shower nozzle is plugged up, treat and wash this separation afterwards, and work efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic view of a prior art mist sprayer;
FIG. 3 is a schematic structural view of the present invention;
FIG. 4 is a schematic top view of the vacuum cylinder of the present invention;
fig. 5 is a schematic view of the oil mist spray head of the present invention.
In the figure: 1. an oil inlet pipe; 2. an oil inlet valve; 3. primary filtering; 4. a heater; 5. a vacuum cylinder; 6. an oil mist spray head; 7. an observation window; 8. a vacuum gauge; 9. a vacuum valve; 10. a condenser; 11. a one-way valve; 12. a vacuum pump; 13. a water storage tank; 14. an oil discharge pump; 15. a pressure gauge; 16. a fine filter; 17. a check valve; 18. an oil outlet pipe; 19. the inclination angle of the nozzle; 20. a four-corner oil pipe; 21. a support pillar; 22. a fixing plate; 23. fixing a sleeve; 24. a spring; 25. sealing sleeves; 26. a piston needle.
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.
Referring to fig. 3-5, a vacuum oil filter comprises an oil inlet pipe 1, an oil inlet valve 2 is fixedly installed in the middle of the oil inlet pipe 1, a prefilter 3 is fixedly installed at one end of the oil inlet pipe 1, a heater 4 is connected to the upper portion of the prefilter 3, a vacuum cylinder 5 is connected to one side of the heater 4, an oil mist spray head 6 is fixedly installed on the pipe at one side of the heater 4, an observation window 7 is opened on the front side of the vacuum cylinder 5, a vacuum gauge 8 is fixedly installed at the top of the vacuum cylinder 5, a vacuum valve 9 is fixedly installed at the top of the vacuum cylinder 5 through the vacuum gauge 8, a condenser 10 is installed at one side of the vacuum cylinder 5 through the vacuum valve 9, a check valve 11 is fixedly installed at the bottom of the condenser 10, a vacuum pump 12 is fixedly installed below the condenser 10 through the check valve 11, a water storage tank 13 is connected to one side of the condenser 10, an oil discharge pump 14 is fixedly installed at the bottom of the vacuum cylinder 5 through a pipe, one side fixed mounting of oil extraction pump 14 has manometer 15, one side fixed mounting of manometer 15 has secondary filter 16, one side fixed mounting of secondary filter 16 has an oil outlet pipe 18, the middle part fixed mounting of oil outlet pipe 18 has check valve 17, nozzle inclination 19 has been seted up at the top of oil mist shower nozzle 6, the bottom fixed mounting of oil mist shower nozzle 6 has four corners oil pipe 20, the top fixed mounting of oil mist shower nozzle 6 has support column 21, the top fixed mounting of support column 21 has fixed plate 22, the lower fixed surface of fixed plate 22 installs fixed cover 23, the inside fixed mounting of fixed cover 23 has spring 24, the bottom fixed mounting of fixed cover 23 has seal cover 25, the bottom fixed mounting of spring 24 has piston needle 26.
The inclination angle of the nozzle inclination angle 19 is small, and the four oil mist spray heads 6 which are distributed and installed are enabled to spray oil mist upwards through the small nozzle inclination angle 19 in the oil mist spraying process, so that the oil mist staggering range is small, the problem that the staggering oil mist and the water and oil separation effect are poor is solved, and the separation effect is improved.
Wherein, the mounted position of oil mist shower nozzle 6 squints downwards, is located the latter half of vacuum cylinder 5, through the affirmation to 6 mounted positions of oil mist shower nozzle for oil mist shower nozzle 6 is at the in-process of upwards spraying, can not directly spout the top of vacuum cylinder 5, has solved the oil mist and has jetted the top of vacuum cylinder 5, and oil glues the problem that the top of vacuum cylinder 5 can enter into condenser 10, has promoted the oil-gas separation effect.
Wherein, four corners oil pipe 20 is cross, and the diameter of four corners oil pipe 20 is two-thirds of the diameter of the 5 inner tube of vacuum cylinder, through the affirmation to 20 shapes of four corners oil pipe and diameter, can install four oil mist shower nozzles 6, and the oil mist that the oil mist shower nozzle 6 of installation sprays can not directly spout on the inner wall of vacuum cylinder 5, the oil mist shower nozzle 6 of having solved a plurality of installations can cause the oil mist to directly spout the inner wall of vacuum cylinder 5, influence oil-gas separation's problem, oil mist shower nozzle 6's injection effect has been promoted, and separation efficiency.
Wherein, piston needle 26 is under the state that spring 24 relaxs, and piston needle 26's bottom just passes the jet orifice of oil mist shower nozzle 6, through the control to piston needle 26 length for piston needle 26 can dredge the jet orifice under the condition that the jet orifice blockked up, has solved piston needle 26 length inadequately, can't reach the mediation to the jet orifice, and piston needle 26 length is longer, the problem of easy rupture, has promoted piston needle 26 to the mediation effect of jet orifice.
The length of the supporting columns 21 is controlled above the oil mist spraying shape, the length of the fixing plate 22 is matched with the nozzle inclination angle 19, the supporting columns 21 and the fixing plate 22 are determined in size, the oil mist spraying process cannot be shielded by the fixing plate 22, the problem that the supporting columns 21 are too short and the oil mist can be sprayed to the bottom of the fixing plate 22 under the condition that the fixing plate 22 is too long is solved, and the oil-gas separation effect is improved.
The working principle of the invention is as follows:
firstly, starting a vacuum pump 12, pumping out air in a vacuum cylinder 5 to form a vacuum environment in the vacuum cylinder 5, opening an oil inlet valve 2, injecting oil into a primary filter 3 through an oil inlet pipe 1 to carry out primary filtration, injecting the filtered oil into a heater 4 to be heated to enable the temperature of the oil to reach about 75 ℃, injecting the oil into an oil mist spray head 6 through a four-corner oil pipe 20, forming oil mist through the oil mist spray head 6 to be sprayed into the vacuum cylinder 5, generating upward thrust on a piston needle 26 by the oil mist at the moment, so that a spring 24 is compressed, reducing the oil mist after the oil mist spray head 6 is blocked, reducing the thrust on the piston needle 26, moving the piston needle 26 downwards through a nozzle through the elastic action of the spring 24 to dredge the nozzle, reducing the boiling point of water under the vacuum environment, and at the moment, changing the water into water vapor to be separated from the oil, and enabling the water vapor to enter a condenser 10 from the top of the vacuum cylinder 5 to be condensed, stored in the storage tank 13, the liquid oil is pumped from the bottom of the vacuum cylinder 5 by the action of the oil discharge pump 14, and the oil enters the fine filter 16 for final fine filtration and is discharged from the oil outlet pipe 18.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 (4)
1. The vacuum oil filter comprises an oil inlet pipe (1), wherein an oil inlet valve (2) is fixedly installed in the middle of the oil inlet pipe (1), a primary filter (3) is fixedly installed at one end of the oil inlet pipe (1), a heater (4) is connected to the upper portion of the primary filter (3), a vacuum cylinder (5) is connected to one side of the heater (4) through a pipe, an oil mist spray head (6) is fixedly installed on the pipe on one side of the heater (4), an observation window (7) is formed in the front of the vacuum cylinder (5), a vacuum gauge (8) is fixedly installed at the top of the vacuum cylinder (5), a vacuum valve (9) is fixedly installed at the top of the vacuum cylinder (5) through the vacuum gauge (8), a condenser (10) is installed at one side of the vacuum cylinder (5) through a pipe of the vacuum valve (9), and a one-way valve (11) is fixedly installed at the bottom of the condenser (10), the below of condenser (10) and through check valve (11) fixed mounting have vacuum pump (12), one side union coupling of condenser (10) has storage water tank (13), there is oil extraction pump (14) bottom of vacuum cylinder (5) through pipe fixed mounting, one side fixed mounting of oil extraction pump (14) has manometer (15), one side fixed mounting of manometer (15) has fine filter (16), one side fixed mounting of fine filter (16) has oil pipe (18), the middle part fixed mounting of oil pipe (18) has check valve (17), nozzle inclination (19), its characterized in that have been seted up at the top of oil mist shower nozzle (6): the bottom fixed mounting of oil mist shower nozzle (6) has four corners oil pipe (20), the angle of inclination of nozzle inclination (19) is little, the top fixed mounting of oil mist shower nozzle (6) has support column (21), the top fixed mounting of support column (21) has fixed plate (22), the lower fixed surface of fixed plate (22) installs fixed cover (23), the inside fixed mounting of fixed cover (23) has spring (24), the bottom fixed mounting of fixed cover (23) has seal cover (25), the bottom fixed mounting of spring (24) has piston needle (26), piston needle (26) are under spring (24) relaxed state, and the bottom of piston needle (26) just passes the jet orifice of oil mist shower nozzle (6).
2. A vacuum oil filter according to claim 1, characterized in that: the installation position of the oil mist spray head (6) is deviated downwards and is positioned at the lower half part of the vacuum cylinder (5).
3. A vacuum oil filter according to claim 1, characterized in that: the four-corner oil pipe (20) is cross-shaped, and the diameter of the four-corner oil pipe (20) is two thirds of the diameter of the inner cylinder of the vacuum cylinder (5).
4. A vacuum oil filter according to claim 1, characterized in that: the length of the supporting column (21) is controlled above the oil mist spraying shape, and the length of the fixing plate (22) is matched with the nozzle inclination angle (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911152114.7A CN111097226B (en) | 2019-11-22 | 2019-11-22 | Vacuum oil filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911152114.7A CN111097226B (en) | 2019-11-22 | 2019-11-22 | Vacuum oil filter |
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| Publication Number | Publication Date |
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| CN111097226A CN111097226A (en) | 2020-05-05 |
| CN111097226B true CN111097226B (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911152114.7A Active CN111097226B (en) | 2019-11-22 | 2019-11-22 | Vacuum oil filter |
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| CN (1) | CN111097226B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62262756A (en) * | 1986-05-09 | 1987-11-14 | Zeotetsuku L R C Kk | Method for controlling liquid filter |
| JPH1054514A (en) * | 1996-08-07 | 1998-02-24 | Mitsubishi Heavy Ind Ltd | Cleaning needle built in type gas nozzle for cutting gas |
| CN200980962Y (en) * | 2006-10-10 | 2007-11-28 | 重庆工商大学 | Double-effect spraying vacuum separating device |
| CN104624426A (en) * | 2015-02-12 | 2015-05-20 | 天津成科自动化工程技术有限公司 | Atomizer with automatic blockage clearing function |
| CN105521901A (en) * | 2016-01-28 | 2016-04-27 | 厦门大学嘉庚学院 | On-line automatic blockage-clearing device for nozzle and blockage clearing method thereof |
| CN106268007A (en) * | 2015-06-10 | 2017-01-04 | 哈尔滨宏万智科技开发有限公司 | A kind of effective vacuum oil-filtering machine |
| CN106479660A (en) * | 2016-12-25 | 2017-03-08 | 重庆海国科技有限公司 | Three-level fine vacuum oil filtering system |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3910496A (en) * | 1974-01-11 | 1975-10-07 | Longwood Machine Works Inc | Atomizer |
| DE2810954C3 (en) * | 1978-03-14 | 1985-07-18 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | steam iron |
| DE8806694U1 (en) * | 1988-05-21 | 1989-09-21 | Robert Bosch Gmbh, 7000 Stuttgart | Drain plug for fuel filter |
| DE19850810B4 (en) * | 1998-11-04 | 2004-03-25 | F.W. Oventrop Gmbh & Co. Kg | Connection fitting with a heating oil filter for heating systems |
| CN200957379Y (en) * | 2006-10-18 | 2007-10-10 | 中国石油化工股份有限公司 | Automatic dredging nozzle |
| CN200988004Y (en) * | 2006-11-20 | 2007-12-12 | 斯普瑞喷雾系统(上海)有限公司 | Spray nozzle with cleaning mechanism |
| DE102009054523A1 (en) * | 2009-12-10 | 2011-06-16 | Hengst Gmbh & Co. Kg | liquid filters |
| CN102462978A (en) * | 2011-07-12 | 2012-05-23 | 常州贺斯特电气有限公司 | Combined degassing technology for vacuum oil filtering device |
| CN202199458U (en) * | 2011-08-03 | 2012-04-25 | 周国富 | Novel intelligent atomizer |
| CN202427252U (en) * | 2011-11-28 | 2012-09-12 | 昆山威胜达环保设备有限公司 | Vacuum electrostatic oil filter |
| CN103285657A (en) * | 2013-07-01 | 2013-09-11 | 昆山威胜达环保设备有限公司 | Electric-charge-type vacuum oil filter |
| US9604239B2 (en) * | 2014-08-01 | 2017-03-28 | Bodygard Llc | Self cleaning water nozzle |
| US20160030963A1 (en) * | 2014-08-01 | 2016-02-04 | Bodygard Llc | Self cleaning water nozzle |
| CN105126524A (en) * | 2015-09-16 | 2015-12-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Filter unit for condensate volatile matters in titanium sponge vacuum distillation pipeline |
| CN106076678B (en) * | 2016-07-22 | 2018-06-12 | 九牧厨卫股份有限公司 | A kind of automatic descaling shower head and shower are from descaling method |
| CN106807565B (en) * | 2016-08-31 | 2022-04-12 | 昆山开拓者喷雾系统科技有限公司 | Anti-clogging two-fluid spray rod |
-
2019
- 2019-11-22 CN CN201911152114.7A patent/CN111097226B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62262756A (en) * | 1986-05-09 | 1987-11-14 | Zeotetsuku L R C Kk | Method for controlling liquid filter |
| JPH1054514A (en) * | 1996-08-07 | 1998-02-24 | Mitsubishi Heavy Ind Ltd | Cleaning needle built in type gas nozzle for cutting gas |
| CN200980962Y (en) * | 2006-10-10 | 2007-11-28 | 重庆工商大学 | Double-effect spraying vacuum separating device |
| CN104624426A (en) * | 2015-02-12 | 2015-05-20 | 天津成科自动化工程技术有限公司 | Atomizer with automatic blockage clearing function |
| CN106268007A (en) * | 2015-06-10 | 2017-01-04 | 哈尔滨宏万智科技开发有限公司 | A kind of effective vacuum oil-filtering machine |
| CN105521901A (en) * | 2016-01-28 | 2016-04-27 | 厦门大学嘉庚学院 | On-line automatic blockage-clearing device for nozzle and blockage clearing method thereof |
| CN106479660A (en) * | 2016-12-25 | 2017-03-08 | 重庆海国科技有限公司 | Three-level fine vacuum oil filtering system |
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| CN111097226A (en) | 2020-05-05 |
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Effective date of registration: 20211020 Address after: 201900 room u103, building 1, 266 luochun Road, Baoshan District, Shanghai Applicant after: SHANGHAI WEIHANG EQUIPMENT TECHNOLOGY Co.,Ltd. Address before: 430000, NO.67, Wubei 1st Village, Wuchang District, Wuhan City, Hubei Province Applicant before: Ding Liang |
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Denomination of invention: A vacuum oil filter Effective date of registration: 20230419 Granted publication date: 20211109 Pledgee: Bank of Communications Co.,Ltd. Shanghai Baoshan Branch Pledgor: SHANGHAI WEIHANG EQUIPMENT TECHNOLOGY Co.,Ltd. Registration number: Y2023310000129 |
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