CN206584239U - Integrated prefabricated pumping plant and its compound liquid level detection device - Google Patents
Integrated prefabricated pumping plant and its compound liquid level detection device Download PDFInfo
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- CN206584239U CN206584239U CN201720062863.0U CN201720062863U CN206584239U CN 206584239 U CN206584239 U CN 206584239U CN 201720062863 U CN201720062863 U CN 201720062863U CN 206584239 U CN206584239 U CN 206584239U
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Abstract
The utility model is related to integrated prefabricated pumping plant and its compound liquid level detection device; including cylinder and pumping plant base; the cylinder is fixedly installed on the pumping plant base; the cylinder upper end is provided with opening; well lid is provided with the opening; the well lid is arranged in the safety grids, and the inner barrel is provided with water pump, pressure pipeline, cat ladder, support frame, safety grids, the first guide rail, the second guide rail and pressure sensor protection pipe；Mechanical float ball switch is added to carry out Liquid level using supersonic liquid level inductor, supersonic liquid level inductor is due to using cordless, will not occur the existing picture of dirt blocking, also without mechanical contact, Reliability comparotive is high, is usually mainly worked by ultrasonic wave, when ultrasound examination is broken down, mechanical float ball switch can play last safety effect, and Liquid level reliability is improved to greatest extent.
Description
Technical field
The utility model belongs to pumping plant technical field, and in particular to integrated prefabricated pumping plant and its compound level sensing dress
Put.
Background technology
With industrial expansion, the amount of trade effluent is more and more, therefore occurs in that various sewage disposal devices,
Pumping plant is one of them.Traditional pumping plant is to be built to form at the scene by concrete etc., and construction period is usually 2-3 months,
Take a substantial amount of time, material resources, financial resources；For this problem, prefabricated pumping plant (PPS, PrefabricatedPumpStation)
Arise at the historic moment.In the prior art, the small volume of prefabricated pumping plant, the flow of trandfer fluid is also smaller in the unit interval.Therefore, one
Fluid flow state in aspect, pumping plant is little to the normal influence on system operation of water pump；In terms of the opposing party, due to installed in pumping plant bottom
Immersible pump weight is smaller, so, although it is that, by being vacantly installed on pumping plant bottom from lotus root mounting seat, but will not produce larger
Pulling force.Simultaneously because immersible pump deadweight and power are smaller, the vibration produced during operation is also smaller.
The domestic demand to prefabricated pumping plant is very big at present, as the quickening of national Development of China's Urbanization, and the whole nation are various
Waste water in infrastructure construction, increasing field can not flow automatically to discharge tube, and this is accomplished by pumping plant and goes lifting and defeated
Send.And traditional concrete pumping plant is due to big, the long construction period by floor space, investment height, the easy burn into pump of concrete-pool-wall
The factor influence such as impurity deposition, can not increasingly be received by everybody in hole.And the prefabricated pumping plant of intelligent integral is due to notable
Advantage and good matching performance, increasingly by everybody recognition and acceptance.It is widely used in newly-built and reorganization and expansion municipal administration
The fields such as facility, house, tunnel, bridge, people's air defense.With the irreplaceable advantage of other pumping plants.
Existing intelligent integral pumping plant, is frequently found the existing picture of Liquid level failure when operation maintenance, produce event
, typically there are following two modes the reason for barrier, and a kind of pumping plant is mainly what is controlled with float switch, and this mode is due to inside
Mechanical contact, it may occur that touch bad existing picture, sometimes internal electrical losses cause to control failure, another is soaking type electronic level sense
Device is answered, because level sensor sensing hole is often blocked by dirt, always occurs the existing picture in dirt blockage sensing hole, causes liquid
The existing picture of position control failure.
For above-mentioned technical problem, therefore need to be improved.
Utility model content
The utility model be in order to overcome above-mentioned defect of the prior art there is provided one kind it is simple in construction, it is easy to use, adopt
With two kinds of level sensors, supersonic liquid level inductor adds float switch, learnt from other's strong points to offset one's weaknesses, can more preferable integration using reliability
Prefabricated pumping plant and its compound liquid level detection device.
To achieve the above object, the technical scheme that the utility model is used is：Integrated prefabricated pumping plant and its complex liquid
Level detecting apparatus, including cylinder and pumping plant base, the cylinder are fixedly installed on the pumping plant base, and the cylinder upper end is set
It is equipped with opening, the opening and is provided with well lid, the well lid is arranged in the safety grids, and the inner barrel is provided with
Water pump, pressure pipeline, cat ladder, support frame, safety grids, the first guide rail, the second guide rail and pressure sensor protection pipe；Support frame
Positioned at cylinder middle and upper part, safety grids are arranged on support frame, and the cat ladder is arranged in the cylinder, and cat ladder lower end is fixed and set
Put on support frame and upper end is fixed on the inwall of cylinder upper end open；The upper end of the pressure pipeline is described with being arranged on
The outlet pipe of cylinder side is connected, and the side on the pressure pipeline close to the outlet pipe is provided with check-valves and gate valve,
The side relative with the outlet pipe is provided with water inlet pipe on the cylinder, and the position of the water inlet pipe is less than the outlet pipe
Position, the water inlet pipe is provided with crushing grid in the pipeline positioned at the water inlet end of the inner barrel, and described first leads
Rail is arranged on the inner barrel, and its lower end is fixedly installed on pumping plant base and upper end is fixed on support frame bottom, institute
State the second guide rail and be arranged on inner barrel and close to the side of water inlet pipe, the upper end of second guide rail is arranged on the cylinder
End face of on the inwall of end opening and its lower end with the water inlet pipe in inner barrel is fixedly connected;The cylinder top side is set
It is equipped with switch board；Float switch, supersonic liquid level inductor and pressure sensor are provided with the cylinder；The supersonic liquid level
Inductor and float switch are located at the lower end of support frame；The pressure sensor is arranged on the lower end of support frame as described above, described floating
Ball switch be arranged on the pressure sensor protection pipe on, the float switch, supersonic liquid level inductor, pressure sensor and
Water pump is connected with switch board respectively.
As a kind of preferred scheme of the present utility model, the float switch is provided with two, and respectively termination of pumping liquid level is floated
Ball switch and startup liquid-level floater switch；Termination of pumping liquid-level floater switchs and started liquid-level floater switch and is connected with switch board.
As a kind of preferred scheme of the present utility model, ventilation duct is provided with the cylinder top, the ventilation duct and institute
Inner barrel is stated to be connected.
As a kind of preferred scheme of the present utility model, the cylindrical circumferential direction in top of the cylinder is provided with multiple hangers,
The hanger is fixedly connected with cylinder, is integrally formed.
As a kind of preferred scheme of the present utility model, the supersonic liquid level inductor is located at the centre position of cylinder.
As a kind of preferred scheme of the present utility model, the exterior side wall of the cylinder is provided with delivery port, and delivery port is with going out
Water pipe is connected, corresponding, and the outside opposite side wall of the cylinder is provided with the water inlet corresponding with delivery port, water inlet
Mouth is connected with water inlet pipe.
As a kind of preferred scheme of the present utility model, the water pump is provided with 1~4.
As a kind of preferred scheme of the present utility model, the pumping plant base is arc, and its middle part is entered provided with cylinder
Slag chute, for collecting slag.
As a kind of preferred scheme of the present utility model, support frame as described above is horizontally disposed with the middle and upper part of cylinder, and described the
Two guide rails pass perpendicularly through support frame, and the second guide rail is provided with valve in support frame with lower end.
Compared with prior art, the beneficial effects of the utility model are：
1. by setting some water pumps in cylinder body bottom, and by setting float switch and supersonic liquid level sense in cylinder
Answer device；Float switch and supersonic liquid level inductor are done for liquid level accurately measures and feeds back to switch board, true by switch board
Determining particular moment needs to start several water pumps and is operated, on the premise of not being wasted ensureing the energy, water pump energy more efficient
Ground completes the operation of water-pumping/draining, extends the service life of water pump；
2. using supersonic liquid level inductor add mechanical float ball switch carry out Liquid level, supersonic liquid level inductor by
In using cordless, will not occur the existing picture of dirt blocking, also without mechanical contact, Reliability comparotive is high, usually mainly
It is to be worked by ultrasonic wave, when ultrasound examination is broken down, mechanical float ball switch can play last safety effect,
Liquid level reliability is improved to greatest extent.
3. installation period is short, no capital construction, most of expense is saved, is safeguarded time saving and energy saving, excellent using safety, long lifespan etc.
Point.
Brief description of the drawings
Fig. 1 is the utility model example structure schematic diagram；
Fig. 2 is the utility model embodiment float switch and supersonic liquid level sensor structure schematic diagram；
Reference in figure：Cylinder 1, pumping plant base 2 enters slag chute 2-1, well lid 3, water pump 4, pressure pipeline 5, cat ladder 6,
Support frame 7, safety grids 8, outlet pipe 9, check-valves 10, gate valve 11, water inlet pipe 12 crushes grid 13, the first guide rail 14, second
Guide rail 15, switch board 16, supersonic liquid level inductor 17, float switch 19, pressure sensor protection pipe 20, ventilation duct 21 is hung
Ear 22, delivery port 23, water inlet 24, valve 25.
Embodiment
The utility model embodiment is elaborated below in conjunction with the accompanying drawings.
Embodiment：As shown in Figure 1-2, integrated prefabricated pumping plant and its compound liquid level detection device, including cylinder 1 and pumping plant
Base 2, the cylinder 1 is fixedly installed on the pumping plant base 2, and the upper end of cylinder 1 is provided with opening, the opening and set
Well lid 3 is equipped with, the well lid 3 is arranged in the safety grids, the cylinder 1 is internally provided with water pump 4, pressure pipeline 5, climbed
Ladder 6, support frame 7, safety grids 8, the first guide rail 14, the second guide rail 15 and pressure sensor protection pipe 20；Support frame 7 is located at cylinder
The middle and upper part of body 1, safety grids 8 are arranged on support frame 7, due to employing safety grids 8 in the utility model, therefore the nothing of cat ladder 6
What need to be set is very long, it is only necessary to meets staff and reaches safety grids 8, production cost is reduced, while cat ladder 6 itself
It need not be immersed in the water in cylinder 1, it is ensured that overall water quality.
Cat ladder 6 is arranged in the cylinder 1, is set cat ladder 6 to be used to meet under staff to the inside of cylinder 1 and is repaired
Or exclude the work requirements of dirt；The lower end of cat ladder 6 is fixedly installed on support frame 7 and upper end is fixed on the upper end of cylinder 1 and opened
On the inwall of mouth；The upper end of the pressure pipeline 5 is connected with being arranged on the outlet pipe 9 of the side of cylinder 1, the pressure pipe
The side of the close outlet pipe 9 is provided with relative with the outlet pipe 9 on check-valves 10 and gate valve 11, the cylinder 1 on road 5
Side be provided with water inlet pipe 12, and the position of the water inlet pipe 12 is less than the position of the outlet pipe 9, and the water inlet pipe 12 exists
Crushing grid 13 is provided with the pipeline of water inlet end inside the cylinder 1, first guide rail 14 is arranged on the cylinder
Inside body 1, and its lower end is fixedly installed on pumping plant base 2 and upper end is fixed on the bottom of support frame 7, second guide rail 15
It is arranged on the inside of cylinder 1 and close to the side of water inlet pipe 12, the upper end of second guide rail 15 is arranged on the upper end of cylinder 1 and opened
Mouthful inwall on and end face of its lower end with the water inlet pipe 12 inside cylinder 1 be fixedly connected；The top side of cylinder 1 is set
It is equipped with switch board 16；Float switch 19, supersonic liquid level inductor 17 and pressure sensor are provided with the cylinder 1；It is described super
Sound wave liquid level inductor 17 and float switch 19 are located at the lower end of support frame 7；The pressure sensor is arranged on support frame as described above 7
Lower end, the float switch 19 be arranged on the pressure sensor protection pipe 20 on, the float switch 19, supersonic liquid level
Inductor 17, pressure sensor and water pump 4 are connected with switch board 16 respectively, and switch board 16 is placed on cylinder 1 by the utility model
Top.Even if ensureing that accident occurs in cylinder 1, switch board 16 is also safe.
In the utility model, float switch 19, supersonic liquid level inductor 17 are provided with the cylinder 1, its using regardless of
Sequentially, it also can simultaneously use, but when one of sensor failure, can then select another, it is ensured that prefabricated
What pumping plant worked is normally carried out；Float switch 19 is provided with two, respectively termination of pumping liquid-level floater switch and startup liquid-level floater
Switch；Termination of pumping liquid-level floater switchs and started liquid-level floater switch and is connected with switch board 16；Carried out when using float switch 19
During level detection, i.e., it can make to set in pressure sensor protection pipe 20 with the lifting of liquid level using the magnetic float of float switch 19
The tongue tube chip activity put is positioned, contact is sent and opens（Close）The principle of conversion signal, by being opened for contact（Close）Conversion letter
Number triggering, complete water pump 4 and enable the control of quantity, the benefit for opening/cutting off the water pump 4 using float switch 19, which is also resided in, to be carried out
Overflow prevention alarm, it is ensured that liquid level is relatively normal in cylinder 1, and float switch 19 is located at the lower end of support frame 7, can be faster
Perceive the fluctuation of liquid level.
When carrying out level detection using supersonic liquid level inductor 17, it is higher than sound it makes use of the vibration frequency of ultrasonic wave
Ripple and very big to the penetrating power of liquid, solid, especially in the opaque solid of sunlight, it can penetrate tens meters of depth
Degree, it, which encounters impurity or interface, can be produced significantly to reflect to form and be reflected into echo, and Doppler's effect can be produced by encountering mobiles
The real-time height of liquid level in the principle answered, detection cylinder 1, and switch board 16 is fed back to according to height value so that switch board 16 enters
Row analytic operation, with frequency is high, wavelength is short, diffraction phenomenon is small, particularly good directionality, ray can be turned into and direction propagation
The characteristics of, supersonic liquid level inductor 17 is located at the lower end of support frame 7, and positioned at the centre position of cylinder 1；Can be more accurate
Measure current level, it is ensured that the progress working properly of prefabricated pumping plant.
In the utility model, float switch 19 and supersonic liquid level inductor 17 can measure the actual height of liquid level in real time
Degree, the quantitative value of water pump 4 for obtaining actually opening according to liquid level, water pump 4 is provided with 1~4；When water level is higher,
Then start multiple water pumps 4 to be operated, when water level is relatively low, or even 1 water pump 4 of startup can complete water-pumping/draining operation, this knot
On the premise of structure can not be wasted ensureing the energy so that prefabricated pumping plant is more efficiently completed the operation of water-pumping/draining, energy-conservation, green
Environmental protection.
Liquid level, supersonic liquid level inductor are carried out using supersonic liquid level inductor 17 plus mechanical float ball switch 19
17 due to using cordless, the existing picture that will not occur dirt blocking, also without mechanical contact, and Reliability comparotive is high, usually
Mainly worked by ultrasonic wave, under conditions of ultrasound examination damage or sensitivity be not high, mechanical float ball switch 19
Last safety effect can be played, to greatest extent improve Liquid level reliability, it is ensured that prefabricated pumping plant it is working properly enter
OK.
Cylinder 1 is provided with ventilation duct 21 on top, and the ventilation duct 21 improves the cylinder with being connected inside the cylinder 1
The inner air circulation of body 1；The cylindrical circumferential direction in top of cylinder 1 is provided with multiple hangers 22；It is convenient for lifting the cylinder 1
The installation in later stage and the convenience of debugging, the hanger 22 are fixedly connected with cylinder 1, are integrally formed, it is ensured that the prefabricated pumping plant it is whole
Body intensity and firmness, extend service life.
The exterior side wall of cylinder 1 is provided with delivery port 23, and delivery port 23 is connected with outlet pipe 9, corresponding, described
The outside opposite side wall of cylinder 1 is provided with the water inlet 24 corresponding with delivery port 23, and water inlet 24 is connected with water inlet pipe 12.
Pumping plant base 2 is arc, and slag chute 2-1 is entered in its middle part provided with cylinder, for collecting slag；So as to avoid because larger
Infringement of the particulate matter dregs to immersible pump, so as to be greatly enhanced the service life of immersible pump.
Support frame 7 is horizontally disposed with the middle and upper part of cylinder 1, and second guide rail 15 passes perpendicularly through support frame 7, the second guide rail
15 are provided with valve 25 in support frame 7 with lower end.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can in other embodiments be realized in the case where not departing from spirit or scope of the present utility model；Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Although more having used reference in figure herein：Cylinder 1, pumping plant base 2 enters slag chute 2-1, well lid 3, water pump
4, pressure pipeline 5, cat ladder 6, support frame 7, safety grids 8, outlet pipe 9, check-valves 10, gate valve 11, water inlet pipe 12 crushes lattice
Grid 13, the first guide rail 14, the second guide rail 15, switch board 16, supersonic liquid level inductor 17, float switch 19, pressure sensor
Protection pipe 20, ventilation duct 21, hanger 22, delivery port 23, water inlet 24, the grade term of valve 25, but be not precluded from using other arts
The possibility of language.It is used for the purpose of more easily describing and explaining essence of the present utility model using these terms；They are solved
Any additional limitation is interpreted into all to disagree with the utility model spirit.
Claims (9)
1. integrated prefabricated pumping plant and its compound liquid level detection device, it is characterised in that：Including cylinder（1）With pumping plant base（2）,
The cylinder（1）It is fixedly installed on the pumping plant base（2）On, the cylinder（1）Upper end is provided with opening, the opening and set
It is equipped with well lid（3）, the well lid（3）It is arranged in safety grids, the cylinder（1）It is internally provided with water pump（4）, pressure pipeline
（5）, cat ladder（6）, support frame（7）, safety grids（8）, the first guide rail（14）, the second guide rail（15）With pressure sensor protection pipe
（20）；Support frame（7）Positioned at cylinder（1）Middle and upper part, safety grids（8）It is arranged on support frame（7）On, the cat ladder（6）Set
In the cylinder（1）It is interior, cat ladder（6）Lower end is fixedly installed on support frame（7）Upper and upper end is fixed on cylinder（1）Upper end open
Inwall on；The pressure pipeline（5）Upper end and be arranged on the cylinder（1）The outlet pipe of side（9）It is connected, the pressure
Hydraulic piping（5）The upper close outlet pipe（9）Side be provided with check-valves（10）And gate valve（11）, the cylinder（1）It is upper with
The outlet pipe（9）Relative side is provided with water inlet pipe（12）, and the water inlet pipe（12）Position be less than the outlet pipe
（9）Position, the water inlet pipe（12）Positioned at the cylinder（1）Crushing grid is provided with the pipeline of internal water inlet end
（13）, first guide rail（14）It is arranged on the cylinder（1）Inside, and its lower end is fixedly installed on pumping plant base（2）On with
And upper end is fixed on support frame（7）Bottom, second guide rail（15）It is arranged on cylinder（1）Internal and close water inlet pipe（12）'s
Side, second guide rail（15）Upper end be arranged on the cylinder（1）On the inwall of upper end open and its lower end and it is described enter
Water pipe（12）In cylinder（1）Internal end face is fixedly connected；The cylinder（1）Top side is provided with switch board（16）；It is described
Cylinder（1）It is interior to be provided with float switch（19）, supersonic liquid level inductor（17）And pressure sensor；The supersonic liquid level sensing
Device（17）And float switch（19）Located at support frame（7）Lower end；The pressure sensor is arranged on support frame as described above（7）Under
End, the float switch（19）Installed in the pressure sensor protection pipe（20）On, the float switch（19）, ultrasonic solution
Position inductor（17）, pressure sensor and water pump（4）Respectively with switch board（16）Connection.
2. integrated prefabricated pumping plant according to claim 1 and its compound liquid level detection device, it is characterised in that：It is described floating
Ball switch（19）It is provided with two, respectively termination of pumping liquid-level floater switch and startup liquid-level floater switch；Termination of pumping liquid-level floater is opened
Close and start liquid-level floater switch and switch board（16）Connection.
3. integrated prefabricated pumping plant according to claim 1 and its compound liquid level detection device, it is characterised in that：The cylinder
Body（1）Ventilation duct is provided with top（21）, the ventilation duct（21）With the cylinder（1）Inside is connected.
4. integrated prefabricated pumping plant according to claim 3 and its compound liquid level detection device, it is characterised in that：The cylinder
Body（1）The cylindrical circumferential direction in top be provided with multiple hangers（22）, the hanger（22）With cylinder（1）It is fixedly connected, is integrally formed.
5. integrated prefabricated pumping plant according to claim 1 and its compound liquid level detection device, it is characterised in that：It is described super
Sound wave liquid level inductor（17）Positioned at cylinder（1）Centre position.
6. integrated prefabricated pumping plant according to claim 5 and its compound liquid level detection device, it is characterised in that：The cylinder
Body（1）Exterior side wall be provided with delivery port（23）, delivery port（23）With outlet pipe（9）It is connected, corresponding, the cylinder
Body（1）Outside opposite side wall be provided with and delivery port（23）Corresponding water inlet（24）, water inlet（24）With water inlet pipe（12）
It is connected.
7. integrated prefabricated pumping plant according to claim 1 and its compound liquid level detection device, it is characterised in that：The water
Pump（4）It is provided with 1~4.
8. integrated prefabricated pumping plant according to claim 1 and its compound liquid level detection device, it is characterised in that：The pump
Station base（2）For arc, and slag chute is entered in its middle part provided with cylinder（2-1）, for collecting slag.
9. integrated prefabricated pumping plant according to claim 1 and its compound liquid level detection device, it is characterised in that：The branch
Support（7）In cylinder（1）Middle and upper part be horizontally disposed with, second guide rail（15）Pass perpendicularly through support frame（7）, the second guide rail
（15）In support frame（7）Valve is provided with lower end（25）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720062863.0U CN206584239U (en) | 2017-01-19 | 2017-01-19 | Integrated prefabricated pumping plant and its compound liquid level detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720062863.0U CN206584239U (en) | 2017-01-19 | 2017-01-19 | Integrated prefabricated pumping plant and its compound liquid level detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206584239U true CN206584239U (en) | 2017-10-24 |
Family
ID=60109917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720062863.0U Active CN206584239U (en) | 2017-01-19 | 2017-01-19 | Integrated prefabricated pumping plant and its compound liquid level detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206584239U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240012A (en) * | 2018-03-09 | 2018-07-03 | 浙江鸿道环保有限公司 | A kind of fiberglass integrated pump station |
| CN110966226A (en) * | 2019-12-25 | 2020-04-07 | 北京享云智汇科技有限公司 | Movable integrated pump station |
-
2017
- 2017-01-19 CN CN201720062863.0U patent/CN206584239U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240012A (en) * | 2018-03-09 | 2018-07-03 | 浙江鸿道环保有限公司 | A kind of fiberglass integrated pump station |
| CN110966226A (en) * | 2019-12-25 | 2020-04-07 | 北京享云智汇科技有限公司 | Movable integrated pump station |
| CN110966226B (en) * | 2019-12-25 | 2021-07-09 | 江苏亚太水务集团股份有限公司 | Movable integrated pump station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Weihuan Inventor before: Yang Weihuan |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180910 Address after: 311504 383 the Fuchun River Town Road, Tonglu, Hangzhou, Zhejiang Patentee after: Zhejiang run Cheng Environmental Protection Technology Co., Ltd. Address before: 311504 206, two floor, 66 Li seven long street, the Fuchun River Town, Tonglu, Hangzhou, Zhejiang. Patentee before: Zhejiang Link Technology Co., Ltd. |
|
| TR01 | Transfer of patent right |