CN105697426B - A kind of filter device of sewage Pump Suction Nozzle - Google Patents
A kind of filter device of sewage Pump Suction Nozzle Download PDFInfo
- Publication number
- CN105697426B CN105697426B CN201610059975.0A CN201610059975A CN105697426B CN 105697426 B CN105697426 B CN 105697426B CN 201610059975 A CN201610059975 A CN 201610059975A CN 105697426 B CN105697426 B CN 105697426B
- Authority
- CN
- China
- Prior art keywords
- valve
- filter screen
- sewage
- suction line
- impurity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtration Of Liquid (AREA)
Abstract
Filter device the invention belongs to a kind of sewage Pump Suction Nozzle in sewage pump field includes at least Liang Tao contaminant filters mechanism, and the contaminant filter mechanism includes sewage suction line, impurity cleaning pipe, impurity exhaust conduit, filter screen, valve and controller；One end of the sewage suction line can be connect with Pump Suction Nozzle；Filter screen is equipped in the sewage suction line；One end of impurity cleaning pipe can be connect with pumping out the mouth of a river, and the other end is connect with the sewage suction line；Impurity exhaust conduit is connect with the sewage suction line.Controller is electrically connected respectively with valve, and the automation of Liang Tao contaminant filters mechanism alternation is realized by controller.The configuration of the present invention is simple, it is easy to operate, sewage is continuously filtered, it can avoid sewage pump or pipeline that plugging fault occurs, without frequently dismantling the pump housing, reduce the harm to the pump housing, while improving the pump housing service life, ensure the enough service life of sewage pump, while improve the working efficiency of pump.
Description
Technical field
The invention belongs to sewage pump fields, and in particular to a kind of filter device of sewage Pump Suction Nozzle.
Background technology
Sewage pump belongs to one kind of centrifugal impurities pump, due to containing the easily fiber of winding or pack in transported medium
Object, therefore this kind pump runner is easy to block, pump, which is once blocked, can make pump cisco unity malfunction or even burn motor, so as to cause
Blowdown is not smooth.Serious influence is brought to urban life and environmental protection.Therefore, anti-blocking and reliability are the important of sewage pump quality
Factor.
After plugging fault occurs for sewage pump, it is necessary to after water pump is disintegrated, can just remove, not only need consumption a large amount of in this way
Manpower and materials, and the stable operation of whole system can be affected greatly.At present, existing method, is pumped into sewage
Filter screen at mouthful is set, but after operation a period of time, a large amount of impurity will be accumulated before filter screen, and then block filter screen, this
Shi Bixu dismantles pipeline, can just clear up, very inconvenient, and influences the service life of pump.ZL201220728281.9 is public
A kind of sewage Pump Suction Nozzle filter mantle is opened, is filtered including aperture filter mantle, mesoporous filter mantle and macropore, aperture filter mantle, mesoporous
Filter mantle and macropore filter mantle are sequentially fixed at together by buckle, are formed flared structure, are facilitated the processing of sundries, still
It is also required to frequently to dismantle filter mantle and dismantles cleaning, it is inconvenient for operation, and during cleaning, sewage pump must be stopped, drop
The low working efficiency of sewage pump.
Invention content
The purpose of the present invention is providing a kind of filter device of sewage Pump Suction Nozzle regarding to the issue above, which passes through two
It covers contaminant filter mechanism to work alternatively, sewage is continuously filtered, using the water in impurity cleaning pipe 2 come washing filter screen, and is led to
It crosses impurity exhaust conduit 2 to discharge, sewage pump or pipeline is avoided plugging fault to occur, while improve the working efficiency of pump.
The technical scheme is that：A kind of sewage pump inlet filtering apparatus, including at least Liang Tao contaminant filters mechanism, institute
It states contaminant filter mechanism and includes sewage suction line, impurity cleaning pipe, impurity exhaust conduit and filter screen A；
One end of the sewage suction line can be connect with Pump Suction Nozzle；Filter screen A is equipped in the sewage suction line；It is described
Valve A and valve B are respectively equipped with before and after filter screen A；
One end of impurity cleaning pipe can be connect with pumping out the mouth of a river, and the other end connect and was located at the sewage suction line
Between strainer A and valve B；The impurity cleaning pipe is equipped with valve C；
One end of impurity exhaust conduit is free end, and the other end connect with the sewage suction line and positioned at filter screen A and valve
Between door A；The impurity exhaust conduit is equipped with valve D.
In said program, filter screen B is additionally provided in the sewage suction line；The filter screen B be located at impurity exhaust conduit with
It is slidably connected between filter screen A and with the sewage suction line.
Further, the both sides of the filter screen B are respectively equipped with supporting block；Supporting block is equipped with cylindrical roller；It is described
Sewage sucking inside pipe wall is equipped with slot accordingly, and the supporting block is stretched into slot and slided in slot by the ball.
Further, the internal diameter of the filter screen A and the filter screen B are equal.
Further, the reticulate pattern on the filter screen A and filter screen B is orthogonal.
In said program, the sewage suction line is divided into water absorbing section and filter screen construction section；The internal diameter of the water absorbing section is small
In the internal diameter of filter screen construction section.
Further, the water absorbing section passes through flanged joint with filter screen construction section.
In said program, controller is further included；The controller respectively in contaminant filter mechanism valve A, valve B,
Valve C is connected with valve D；
The controller control controls two sets of impurity mistakes by the switch of control valve A, valve B, valve C and valve D
Filter structure works alternatively.
Further, timer is further included, the timer is electrically connected with the controller, and the timer can be according to water
The concentration of middle impurity sets the time of runs, and the controller is according to the switch of the time control valve of setting.
The beneficial effects of the invention are as follows：
1st, for the present invention by designing at least Liang Tao contaminant filters mechanism, the sewage including carrying filter screen sucks water pipe, when
During a wherein sewage sucking water pipe job, another sewage sucking water pipe closes water inlet pipe with valve, it is made to be stopped.Profit
With pumping out the water at the mouth of a river by impurity cleaning pipe come washing filter screen, and pass through impurity exhaust conduit and discharge.Present invention employs two
Root sewage suction line work alternatively mode, it is simple in structure, it is easy to operate, sewage is continuously filtered, can avoid sewage pump or
Plugging fault occurs for pipeline, without frequently dismantling the pump housing, reduces the harm to the pump housing, while improving the pump housing service life, ensures
The enough service life of sewage pump, while improve the working efficiency of pump.
2nd, the present invention realizes the automation that two sewage suction lines work alternatively by the opening and closing of controller control valve door.
3rd, the present invention is electrically connected with the controller by timer, can design runs according to the concentration of impurities in water
Time, further improve the degree of automation that two sewage suction lines work alternatively.
4th, filter screen of the present invention includes filter screen A and filter screen B, and filter screen B can be slided in sewage suction line, work as sewage
When sucking water pipe water suction, filter screen A and filter screen B overlap the effect that can reach double filtration, when impurity cleaning pipe works, water
Stream causes filter screen A and filter screen B to separate, and can remove the impurity being wrapped on filter screen.On the filter screen A and strainer B mono-
Reticulate pattern it is orthogonal, filtering can be improved and go deimpurity effect.
5th, the filter screen construction section on sewage suction line of the present invention can be easy to clean with regular dismounting.
Description of the drawings
Fig. 1 is the structure chart of an embodiment of the present invention.
Fig. 2 is the structure diagram of the filter screen A of an embodiment of the present invention.
Fig. 3 is the structure diagram of the filter screen B of an embodiment of the present invention.
Fig. 4 is the slot sectional view of an embodiment of the present invention.
Fig. 5 is the control circuit simple diagram of an embodiment of the present invention.
In figure：1st, sewage suction line；101st, water absorbing section；102nd, filter screen construction section；2nd, impurity cleaning pipe；3rd, impurity is discharged
Pipe；4th, Pump Suction Nozzle；5th, valve A；6th, valve B；7th, valve C；8th, valve D；9th, filter screen A；10th, filter screen B；11st, water is pumped out
Mouthful；12nd, supporting block；13rd, ball；14th, slot；15th, timer；16th, flange；17th, one is switched；18th, two are switched；19th, three are switched；
20th, power supply；21st, resistance.
Specific embodiment
Specific embodiment is described in further detail the present invention below in conjunction with the accompanying drawings, but protection scope of the present invention is simultaneously
It is without being limited thereto.
A kind of embodiments of the Fig. 1 for the filter device of sewage Pump Suction Nozzle of the present invention, the sewage Pump Suction Nozzle
Filter device include at least Liang Tao contaminant filters mechanism, the contaminant filter mechanism includes sewage suction line 1, impurity cleaning pipe
2nd, impurity exhaust conduit 3, filter screen A9 and controller.One end of the sewage suction line 1 is free end, and the other end can enter with pumping
Mouth 4 connects；Filter screen A9 is equipped in the sewage suction line 1；Valve A5 and valve B6 are respectively equipped with before and after the filter screen A9.
One end of impurity cleaning pipe 2 can be connect with pumping out the mouth of a river 11, and the other end connect with the sewage suction line 1 and positioned at filter screen
Between A9 and valve B6；The impurity cleaning pipe 2 is equipped with valve C7.One end of impurity exhaust conduit 3 be free end, the other end with
The sewage suction line 1 connects and between filter screen A9 and valve A5；The impurity exhaust conduit 3 is equipped with valve D8.It is miscellaneous
Matter discharge pipe 3 is mounted on the front of filter screen, impurity can be made smoothly to discharge.
As shown in Figures 2 and 3, it is additionally provided with filter screen B10 in the sewage suction line 1；The filter screen B10 is located at impurity row
It is slidably connected between outlet pipe 3 and filter screen A9 and with the sewage suction line 1.Preferably, the both sides of the filter screen B10 point
It She You not supporting block 12；Supporting block 12 is equipped with cylindrical roller 13；1 inner wall of sewage suction line is equipped with slot 14 accordingly,
As shown in Figure 4.The supporting block 12 is stretched into slot 14 and is slided by the ball 13 in slot 14, and impurity is avoided to pass through.Institute
Stating strainer B10 can move back and forth under the action of flow along sewage suction line 1.The filter screen A9's and filter screen B10
Internal diameter is equal, and the reticulate pattern on the filter screen A9 and filter screen B10 is orthogonal.When sewage sucking water pipe 1 absorbs water, filter screen
B10 forward movements are overlapped with the strainer A9, not only can reach the effect of double filtration in this way, and when 2 work of impurity cleaning pipe
When making, flow makes filter screen B10 move backward and filter screen A9 difference, the removable impurity being wrapped on filter screen.
The sewage suction line 1 divides for water absorbing section 101 and filter screen construction section 102；The internal diameter of the water absorbing section 101 is less than
The internal diameter of filter screen construction section 102.The motion range of the filter screen B10 can be limited, after keeping it in impurity exhaust conduit 3
Side.
The water absorbing section 101 is connect with filter screen construction section 102 by flange 16, can be easy to clean with regular dismounting.
The controller is connect respectively with valve A5, valve B6, valve C7 and the valve D8 in Liang Tao contaminant filters mechanism；
The controller controls Liang Tao contaminant filters mechanism to hand over by the switch of control valve A5, valve B6, valve C7 and valve D8
Temporary substitute is made.
Fig. 5 show the control circuit of the controller, and the control circuit includes branch one and branch two；The branch
One includes the switch 1, the valve A5 in first set contaminant filter mechanism and the valve B6 that are sequentially connected in series and second set of contaminant filter
Valve C7 and valve D8 in mechanism；The branch two is included in 2 18, the second sets of contaminant filter mechanisms of switch being sequentially connected in series
Valve A5 and valve B6 and valve C7 and valve D8 in first set contaminant filter mechanism；The branch one and branch two are simultaneously
Connection, the branch one and branch two after parallel connection are connected successively with switch 3 19, power supply 20 and resistance 21.
The switch 1 and switch 2 18 are interlock switch, and when the switch 1 disconnects, switch 2 18 is closed, when
When the switch 1 is closed, switch 2 18 disconnects.
The invention also includes two timers 15, the timer 15 is electrically connected respectively with the controller, in control electricity
Timer 15 described in road is in parallel with the switch 1 and switch 2 18 respectively, and the timer 15 can be according to impurities in water
Concentration sets the time of runs, and the controller is according to the switch of the time control valve of setting, so as to fulfill two
Cover the automation that contaminant filter mechanism works alternatively.
The operation principle of the present invention：When the sewage suction line 1 of wherein a set of contaminant filter mechanism carries out contaminant filter work
When, controller controls the valve A5 and valve B6 openings above it at this time, and valve C7 and valve D8 are closed, and pass through the work of flow
With so that filter screen B10 is moved forward and filter screen A9 is overlapped, and achievees the purpose that filtering.And another set of contaminant filter mechanism
Sewage suction line 1 carries out impurity cleaning, and controller controls valve A5 above it and valve B6 to close at this time, valve C7 and
Valve D8 is opened, and the water for pumping out the mouth of a river 11 cleans filter screen B10 and filter screen A9 by impurity cleaning pipe 2, at this moment filter screen
B10 is moved backward under the flushing of flow to be separated with filter screen A9, and the impurity of flushing is discharged by impurity exhaust conduit 23.
According to the size of impurity concentration in medium, be set, the time one arrives the working time of timer 15 so that original to carry out
The valve A5 and valve B6 of the contaminant filter mechanism of contaminant filter work are closed, and valve C7 and valve D8 are opened, stopping absorb water into
Enter impurity cleaning process.And the valve A5 and valve B6 for originally carrying out the contaminant filter mechanism of impurity cleaning are opened, valve
C7 and valve D8 is closed, and is stopped impurity cleaning and is entered water absorption course.
The present invention continuously filters sewage, by contaminant filter and the alternation of cleaning using in impurity cleaning pipe 2
Water carrys out washing filter screen, and passes through impurity exhaust conduit 2 and discharge.Avoid sewage pump or pipeline that plugging fault occurs, without frequent
The pump housing is dismantled, reduces the harm to the pump housing, while improving the pump housing service life, ensures the enough service life of sewage pump, carries simultaneously
The working efficiency of height pump.
The embodiment is the preferred embodiments of the present invention, but present invention is not limited to the embodiments described above, not
Away from the present invention substantive content in the case of, those skilled in the art can make it is any it is conspicuously improved, replace
Or modification all belongs to the scope of protection of the present invention.
Claims (6)
1. a kind of sewage pump inlet filtering apparatus, which is characterized in that including at least Liang Tao contaminant filters mechanism, the contaminant filter
Mechanism includes sewage suction line (1), impurity cleaning pipe (2), impurity exhaust conduit (3) and filter screen A (9)；
One end of the sewage suction line (1) is connect with Pump Suction Nozzle (4)；Filter screen A is equipped in the sewage suction line (1)
(9)；The filter screen A (9) is front and rear to be respectively equipped with valve A (5) and valve B (6)；
One end of impurity cleaning pipe (2) is connect with pumping out the mouth of a river (11), and the other end is connect with the sewage suction line (1) and position
Between filter screen A (9) and valve B (6)；The impurity cleaning pipe (2) is equipped with valve C (7)；
One end of impurity exhaust conduit (3) is free end, and the other end connect with the sewage suction line (1) and positioned at filter screen A
(9) between valve A (5)；The impurity exhaust conduit (3) is equipped with valve D (8)；
Filter screen B (10) is additionally provided in the sewage suction line (1)；The filter screen B (10) is positioned at impurity exhaust conduit (3) and mistake
It is slidably connected between strainer A (9) and with the sewage suction line (1)；
Further include controller；The controller respectively in contaminant filter mechanism valve A (5), valve B (6), valve C (7) and
Valve D (8) connections；
The controller by the switch of control valve A (5), valve B (6), valve C (7) and valve D (8) come control two sets it is miscellaneous
Matter filter mechanism works alternatively；
Timer (15) is further included, the timer (15) is electrically connected with the controller, and the timer (15) is according in water
The concentration of impurity sets the time of runs, and the controller is according to the switch of the time control valve of setting.
2. sewage pump inlet filtering apparatus according to claim 1, which is characterized in that the both sides of the filter screen B (10)
It is respectively equipped with supporting block (12)；Supporting block (12) is equipped with cylindrical roller (13)；Sewage suction line (1) inner wall is corresponding
Equipped with slot (14), the supporting block (12) is stretched into slot (14) and is slided by the ball (13) in slot (14).
3. sewage pump inlet filtering apparatus according to claim 1, which is characterized in that the filter screen A (9) and the mistake
The internal diameter of strainer B (10) is equal.
4. sewage pump inlet filtering apparatus according to claim 1, which is characterized in that the filter screen A (9) and filter screen
Reticulate pattern on B (10) is orthogonal.
5. sewage pump inlet filtering apparatus according to claim 1, which is characterized in that the sewage suction line (1) is divided into
Water absorbing section (101) and filter screen construction section (102)；The internal diameter of the water absorbing section (101) is less than the interior of filter screen construction section (102)
Diameter.
6. sewage pump inlet filtering apparatus according to claim 5, which is characterized in that the water absorbing section (101) and filtering
Net construction section (102) passes through flanged joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610059975.0A CN105697426B (en) | 2016-01-28 | 2016-01-28 | A kind of filter device of sewage Pump Suction Nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610059975.0A CN105697426B (en) | 2016-01-28 | 2016-01-28 | A kind of filter device of sewage Pump Suction Nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105697426A CN105697426A (en) | 2016-06-22 |
| CN105697426B true CN105697426B (en) | 2018-06-12 |
Family
ID=56228667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610059975.0A Active CN105697426B (en) | 2016-01-28 | 2016-01-28 | A kind of filter device of sewage Pump Suction Nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105697426B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221369B (en) * | 2017-06-08 | 2019-06-04 | 安徽科创智慧知识产权服务有限公司 | One kind being used for nuclear power station underwater foreign matter suction method |
| CN109210020B (en) * | 2018-11-29 | 2020-06-05 | 台州强威泵业股份有限公司 | Water pump for flood control and emergency rescue |
| CN113266548B (en) * | 2021-07-19 | 2021-10-08 | 山东高原油气装备有限公司 | Hydraulic bidirectional slurry pump for preventing blockage in oil exploitation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203081869U (en) * | 2012-12-26 | 2013-07-24 | 辽宁石油机械制造有限公司 | Sewage pump suction inlet filter screen |
| CN203394892U (en) * | 2013-08-20 | 2014-01-15 | 北京环宇宏业科技开发有限公司 | Pump self-washing sucker device |
| CN203730335U (en) * | 2014-01-25 | 2014-07-23 | 台州斯莱特机电设备有限公司 | Sewage pump |
| CN204099296U (en) * | 2014-09-03 | 2015-01-14 | 天津慧舟科技发展有限公司 | A kind of anti-blockage structure of sewage pump |
| CN204436889U (en) * | 2014-11-28 | 2015-07-01 | 大连环友屏蔽泵有限公司 | Circulation pipe is with the canned motorpump of filter |
| CN204458558U (en) * | 2014-12-12 | 2015-07-08 | 四川三台剑门泵业有限公司 | A kind of self-cleaning submersible pump |
| EP2960375A1 (en) * | 2014-06-26 | 2015-12-30 | Dragflow S.r.l. | Submersible pump |
-
2016
- 2016-01-28 CN CN201610059975.0A patent/CN105697426B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203081869U (en) * | 2012-12-26 | 2013-07-24 | 辽宁石油机械制造有限公司 | Sewage pump suction inlet filter screen |
| CN203394892U (en) * | 2013-08-20 | 2014-01-15 | 北京环宇宏业科技开发有限公司 | Pump self-washing sucker device |
| CN203730335U (en) * | 2014-01-25 | 2014-07-23 | 台州斯莱特机电设备有限公司 | Sewage pump |
| EP2960375A1 (en) * | 2014-06-26 | 2015-12-30 | Dragflow S.r.l. | Submersible pump |
| CN204099296U (en) * | 2014-09-03 | 2015-01-14 | 天津慧舟科技发展有限公司 | A kind of anti-blockage structure of sewage pump |
| CN204436889U (en) * | 2014-11-28 | 2015-07-01 | 大连环友屏蔽泵有限公司 | Circulation pipe is with the canned motorpump of filter |
| CN204458558U (en) * | 2014-12-12 | 2015-07-08 | 四川三台剑门泵业有限公司 | A kind of self-cleaning submersible pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105697426A (en) | 2016-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105697426B (en) | A kind of filter device of sewage Pump Suction Nozzle | |
| CN108126396A (en) | Suction type self-cleaning filter | |
| CN102679806A (en) | Energy-saving ball-loading and ball-serving device for condenser glue ball cleaning system | |
| CN218924070U (en) | Sewage treatment device convenient to clearance filter screen plate | |
| CN105056600A (en) | Device and method for removing floating objects in sewage through spiral-flow type automatic cleaning and filtration | |
| CN208049509U (en) | Suction type self-cleaning filter | |
| CN104841221B (en) | A kind of air cleaner | |
| CN105948148B (en) | A kind of sewage water treatment method crushing sewage-treatment plant with multistage more partial size circulations | |
| CN208599268U (en) | A kind of sewage-treatment plant | |
| CN209429195U (en) | Green building rainwater-collecting storage device | |
| CN203678071U (en) | Backwashing filter | |
| CN209011201U (en) | A kind of rainwater recycle reuse means | |
| CN104548686A (en) | Filter with adjustable inner space for filter pool | |
| CN203886306U (en) | Full-automatic sediment filtering all-in-one machine | |
| CN103611351A (en) | Full-automatic water purification drum filter | |
| CN108245979A (en) | It is a kind of can inherent filtration sewage extraction pump | |
| CN209501035U (en) | A kind of automatic cleaning strainer | |
| CN209243425U (en) | A kind of roller washing machine cylindric washer filter device free of cleaning | |
| CN107082471B (en) | A kind of sewage ultrafiltration membrane filter device | |
| CN207445764U (en) | A kind of water body impurity remove device | |
| CN207356758U (en) | A kind of dust-extraction unit of filter bag capable of washing | |
| CN207435178U (en) | A kind of purifier with sewage pre-treatment device | |
| CN107998714B (en) | A kind of sewage treatment contaminant filter system | |
| CN207445758U (en) | A kind of building sewage disposal device of the environmental protection of building field | |
| CN207654816U (en) | A kind of restoration of the ecosystem liquid production exclusion device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Xiaofei Inventor after: Liu Dong Inventor after: Fu Binhao Inventor before: Liu Dong Inventor before: Fu Binhao Inventor before: Yang Wei Inventor before: Chao Changqing |
|
| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180425 Address after: 211504 Yang Shan village, Cheng Qiao Town, Liuhe District, Nanjing, Jiangsu Applicant after: NANJING BEST ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTD. Address before: No. 301, Xuefu Road, Jingkou District, Zhenjiang, Jiangsu Province Applicant before: Jiangsu University |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |