CN216512940U - Double-water-inlet main pipe and cleaning system - Google Patents

Double-water-inlet main pipe and cleaning system Download PDF

Info

Publication number
CN216512940U
CN216512940U CN202123438482.3U CN202123438482U CN216512940U CN 216512940 U CN216512940 U CN 216512940U CN 202123438482 U CN202123438482 U CN 202123438482U CN 216512940 U CN216512940 U CN 216512940U
Authority
CN
China
Prior art keywords
cleaning
main pipe
inlet
pipe
pipes
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
Application number
CN202123438482.3U
Other languages
Chinese (zh)
Inventor
周海明
陈静
刘天永
严知银
吴健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Film (Zhejiang) Environmental Protection Technology Co.,Ltd.
Original Assignee
Sinochem Zhejiang Membrane Industry Development Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sinochem Zhejiang Membrane Industry Development Co Ltd filed Critical Sinochem Zhejiang Membrane Industry Development Co Ltd
Priority to CN202123438482.3U priority Critical patent/CN216512940U/en
Application granted granted Critical
Publication of CN216512940U publication Critical patent/CN216512940U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Cleaning In General (AREA)

Abstract

The utility model provides a double-water-inlet main pipe and a cleaning system, which comprises a first main pipe, a second main pipe and a cleaning system, wherein the double main pipes are mutually connected in parallel and are sequentially connected with a wastewater supply device and a wastewater treatment device to be treated along the flow direction of wastewater; the wastewater to be treated supply device is provided with two branch pipes which are respectively communicated with the double main pipes; the wastewater treatment device is provided with two feeding pipes which are respectively communicated with the double main pipes; the cleaning system is also provided with two cleaning inlet/outlet pipes which are respectively communicated with the double main pipes. The design of two female pipes of intaking each other is reserve, and the female pipe of backup is launched promptly during pipeline cleaning, guarantees device continuous operation, sets up cleaning system simultaneously, can carry out online washing and chemical cleaning to female pipe, has reduced artifical cleaning strength to the required cost of change pipeline has been reduced.

Description

Double-water-inlet main pipe and cleaning system
Technical Field
The utility model relates to a double-water-inlet main pipe and a cleaning system.
Background
The iron phosphate wastewater is complex in water quality, generally contains high-concentration ammonia nitrogen and total phosphorus, and contains heavy metal ions, including calcium, magnesium, manganese, iron and the like, before entering a filter for treatment, the wastewater needs to be pretreated, the heavy metal ions are precipitated by adjusting pH, but the concentration of pollutants is high, and the water quality fluctuates, the iron phosphate wastewater pretreated according to actual operation experience is always subjected to pollution blockage or scaling in a filter water inlet main pipe, and is accompanied with microorganism breeding, the cross section of a pipeline is reduced, so that the water flow is reduced, the flow rate is increased, and the resistance is increased. In the existing ferric phosphate wastewater treatment project, a filter working section is designed to feed water into a single main pipe, and once the sewage blockage is serious, the water supply flow and the water supply pressure cannot be ensured, namely, the normal operation cannot be realized, and the machine needs to be stopped for maintenance.
SUMMERY OF THE UTILITY MODEL
The utility model provides a double-water inlet main pipe and a cleaning system, aiming at overcoming the defect that the filter water inlet main pipe in the prior art cannot work when being overhauled after being polluted and blocked and solving the problem that the water inlet main pipe cannot be self-cleaned.
The utility model solves the technical problems through the following technical scheme: a double-water-inlet main pipe and a cleaning system comprise a first main pipe, a second main pipe and a cleaning system, wherein the first main pipe and the second main pipe are connected in parallel, and the first main pipe and the second main pipe are sequentially connected with a wastewater supply device to be treated and a wastewater treatment device along the wastewater flowing direction; the wastewater to be treated providing device is provided with two branch pipes which are respectively communicated with the first main pipe and the second main pipe; the wastewater treatment device is provided with two feeding pipes which are respectively communicated with the first main pipe and the second main pipe; the cleaning system is also provided with two cleaning feeding pipes and two cleaning discharging pipes, the two cleaning feeding pipes are respectively communicated with the first mother pipe and the second mother pipe, the connecting points are arranged on the upstream of the connecting points of the device for providing the wastewater to be treated, the first mother pipe and the second mother pipe, the two cleaning discharging pipes are respectively communicated with the first mother pipe and the second mother pipe, and the connecting points are arranged on the downstream of the connecting points of the wastewater treatment device, the first mother pipe and the second mother pipe.
In the technical scheme, the design of double main pipes is adopted, the double main pipes are mutually standby, when the pipeline is cleaned, the standby main pipes are started, the continuous operation of the device is ensured, and the cleaning system can be connected with any main pipe to achieve the cleaning function.
Preferably, the two branch pipes, the two feed pipes, the two cleaning feed pipes and the two cleaning discharge pipes are provided with valves.
In this technical scheme, reach the purpose of accurate control rivers through set up the valve on each pipeline.
Preferably, both ends of the first main pipe and the second main pipe are provided with flanges and main pipe blind plates.
In this technical scheme, female pipe both ends set up flange and blind plate, and female pipe all adopts the flange with branch connection, and the pipeline of being convenient for is dismantled and later stage is changed.
Preferably, the wastewater to be treated supply device comprises a feed pump for conveying wastewater to be treated; the wastewater treatment device is a filter.
In the technical scheme, the wastewater to be treated is provided with a feed pump and a wastewater treatment device which is a filter, so that the wastewater treatment process is realized.
Preferably, a main pipe end pressure switch and a main pipe automatic exhaust valve are further respectively arranged in the first main pipe and the second main pipe and at the downstream of the connection point of the wastewater treatment device and the first main pipe and the second main pipe.
In the technical scheme, the alarm is given when the pressure switch at the tail end of the main pipe is lower than a set value, so that the blockage of the pipeline can be found in time, and the pipeline system can be cleaned in time; the automatic exhaust valve for the main pipe is convenient for exhausting air in the standby main pipe in the using process, and prevents the occurrence of accidents caused by overhigh pressure of air in the main pipe.
Preferably, the cleaning system is further provided with a cleaning device, the two cleaning feeding pipes are combined and then connected with a liquid inlet of the cleaning device, and the two cleaning discharging pipes are combined and then connected with a liquid outlet of the cleaning device.
In the technical scheme, the cost of pipeline materials is effectively saved by combining two cleaning feeding pipes and two cleaning discharging pipes.
Preferably, the cleaning device comprises a cleaning water tank and a cleaning pump, the liquid inlet is formed in the cleaning water tank, the cleaning water tank is connected with the cleaning pump, and the cleaning pump is used for reversely leading cleaning water into the first main pipe and/or the second main pipe through the liquid outlet.
In this technical scheme, through the washing pump with the water-washed of wasing the water tank in the female pipe, realize abluent function.
Preferably, the cleaning system further comprises a dosing loop, one end of the dosing loop is connected with the cleaning water tank, and the other end of the dosing loop is arranged between the cleaning pump and the liquid outlet.
In the technical scheme, the cleaning water tank is connected, the medicament is added into the cleaning water tank, and the corresponding chemical medicament is added according to the requirement.
Preferably, the dosing loop is further provided with an ejector, and the ejector is further externally connected with a medicament barrel.
In the technical scheme, the medicament in the medicament barrel can be better added into the cleaning water tank through the ejector.
Preferably, the cleaning water tank is provided with a tap water inlet, a sewage outlet and a cleaning water tank liquid level switch.
In this technical scheme, through wasing water tank liquid level switch, can monitor the water level of wasing liquid in the water tank, make the action of moisturizing or drainage, prevent effectively that water tank empty water or water tank liquid are too much, connect running water inlet and sewage outlet, can supply clean water to water tank in, also can discharge sewage, play the function of blowdown and moisturizing.
Preferably, the cleaning device further comprises a cleaning pump feeding filter, and the cleaning pump feeding filter is arranged between the cleaning water tank and the cleaning pump.
In this technical scheme, the scavenging pump feeding filter can filter the impurity in the washing pipe, prevents to damage the scavenging pump.
Preferably, the cleaning device further comprises a cleaning pump outlet pressure gauge and a water inlet pressure gauge, and the cleaning pump outlet pressure gauge is arranged between the cleaning pump and the liquid outlet; the water inlet pressure gauge is arranged between the two cleaning feeding pipes and the liquid inlet.
In this technical scheme, through the pressure differential of contrast scavenging pump export manometer and intake pressure gauge, judge the cleaning performance, reach predetermined difference and accomplish the washing promptly, can judge the cleaning performance according to the pressure differential, need not to dismantle the pipeline and look over, can monitor the cleaning process effectively.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the utility model.
The positive progress effects of the utility model are as follows:
1. the double water inlet main pipes are arranged for standby, and the device can be kept online through valve switching in the cleaning process.
2. In preferred scheme, the female end of pipe sets up pressure switch, can in time discover the pipeline jam condition, avoids can only abandoning the pipeline after the dirty stifled serious of pipeline, reduces device running cost, guarantees follow-up filter normal operating simultaneously.
3. Set up cleaning system, carry out online cleaning to the female pipe, reduced manual cleaning operation intensity.
4. In preferred scheme, supporting ejector that sets up, with the leading-in washing water tank of medicament to carry out chemical cleaning to female pipe, strengthen washing strength.
5. In preferred scheme, through the pressure differential of contrast scavenging pump export manometer and intake pressure gauge, judge the cleaning performance, reach predetermined difference and accomplish the washing promptly, can judge the cleaning performance according to the pressure differential, need not to dismantle the pipeline and look over, can monitor the cleaning process effectively.
Drawings
FIG. 1 is a schematic diagram of a dual inlet header and cleaning system according to an embodiment of the present invention.
Description of reference numerals: 1. a feed pump; 2. a branch pipe; 3. a feed pipe; 4. cleaning the feeding pipe; 5. cleaning the discharge pipe; 6. automatic exhaust valve of the main pipe; 7. a pressure switch at the tail end of the main pipe; 8. a first main pipe; 9. a second main pipe; 10. a wastewater treatment device; 11. cleaning the water tank; 12. a liquid level switch of the cleaning water tank; 13. cleaning a pump feeding filter; 14. cleaning the pump; 15. cleaning a pump outlet pressure gauge; 16. an ejector; 17. a hose; 18. a medicament barrel; 19. a flange and a mother pipe blind plate; 20. a water inlet pressure gauge; 21. a sewage outlet; 22. valve gate
Detailed Description
In the description of the present invention, it should be noted that the terms "upstream", "downstream", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be more clearly and completely described in the following description of preferred embodiments, taken in conjunction with the accompanying drawings.
As shown in fig. 1, a double-water-inlet main pipe and cleaning system comprises a first main pipe 8, a second main pipe 9 and a cleaning system, wherein the first main pipe 8 and the second main pipe 9 are connected in parallel, and a wastewater supply device to be treated and a wastewater treatment device 10 are sequentially arranged in the first main pipe 8 and the second main pipe 9 along the wastewater flowing direction; the wastewater to be treated providing device is provided with two branch pipes 2, and the two branch pipes 2 are respectively communicated with a first main pipe 8 and a second main pipe 9; the wastewater treatment device 10 is provided with two feeding pipes 3, and the two feeding pipes 3 are respectively communicated with a first main pipe 8 and a second main pipe 9; the cleaning system still is equipped with two and washs inlet pipe 4 and two and washs discharging pipe 5, two wash inlet pipe 4 respectively with the female pipe 9 intercommunication of first female pipe 8 and second, and the tie point all sets up in pending waste water provides device and first female pipe 8, the upper reaches of the tie point of the female pipe 9 of second, two wash discharging pipe 5 respectively with the female pipe 9 intercommunication of first female pipe 8 and second, and the tie point all sets up in waste water treatment device 10 and first female pipe 8, the low reaches of the tie point of the female pipe 9 of second.
When one main pipe is blocked, the main pipe is connected with a cleaning system, and the cleaning system washes the blocked main pipe. While the other mother tube is put into use. Ensuring that a main pipe always keeps working. The expression "a certain mother tube" and "another mother tube" is used herein only to express that the first mother tube 8 and the second mother tube 9 may be spare tubes for each other.
As shown in fig. 1, two branch pipes 2, two feed pipes 3, two purge feed pipes 4 and two purge discharge pipes 5 are provided with valves 22.
In this embodiment, valves 22 are provided on each line, and are opened and closed as needed during the cleaning process or the use process.
As shown in fig. 1, flanges and mother pipe blank plates 19 are arranged at both ends of the first mother pipe 8 and the second mother pipe 9.
In this embodiment, the flange and the mother pipe blind plate 19 are detachable, which is convenient for introducing the device into other systems.
As shown in fig. 1, the apparatus for supplying wastewater to be treated comprises a feed pump 1 for transporting wastewater to be treated; the wastewater treatment device 10 is a filter.
In this example, a feed pump 1 introduces wastewater into the apparatus and a filter is used to treat the wastewater.
As shown in fig. 1, a main pipe end pressure switch 7 and a main pipe automatic exhaust valve 6 are respectively arranged in the first main pipe 8 and the second main pipe 9 at the downstream of the connection point of the wastewater treatment device 10 and the first main pipe 8 and the second main pipe 9.
In the embodiment, whether cleaning is needed or not can be judged by observing the pressure switch 7 at the tail end of the main pipe, and the purpose of alarming when the preset value is not met can be achieved by setting the preset value for the pressure switch 7 at the tail end of the main pipe; when the standby main pipe is put into use, the automatic exhaust valve 6 of the main pipe needs to be opened to exhaust the main pipe.
As shown in fig. 1, the cleaning system is further provided with a cleaning device, two cleaning feed pipes 4 are combined and then connected with a liquid inlet of the cleaning device, and two cleaning discharge pipes 5 are combined and then connected with a liquid outlet of the cleaning device. In this embodiment, the cleaning system need not use a dual tube design, and the two cleaning feed tubes 4 and the two cleaning discharge tubes 5 connected to the dual mother tubes can be merged and connected to the cleaning device, respectively.
As shown in fig. 1, the cleaning device includes a cleaning water tank 11 and a cleaning pump 14, wherein the liquid inlet is disposed on the cleaning water tank 11, the cleaning water tank 11 is connected to the cleaning pump 14, and the cleaning pump 14 is configured to reversely introduce cleaning water into the first main pipe 8 and/or the second main pipe 9 through the liquid outlet. The cleaning water tank 11 is provided with a tap water inlet, a sewage outlet 21 and a cleaning water tank liquid level switch 12. The cleaning device further comprises a cleaning pump feeding filter 13, and the cleaning pump feeding filter 13 is arranged between the cleaning water tank 11 and the cleaning pump 14.
In this embodiment, need not to dismantle the pipeline, can carry out abundant washing to the female pipe. In the cleaning process, introduce washing water tank 11 with the running water, reach and set for the liquid level, can open scavenging pump 14 and wash, the washing liquid washs discharging pipe 5 through the female pipe of low reaches of female pipe normal flow direction and gets into, through abundant washing, soaking, washs inlet pipe 4 discharge by female pipe, gets back to and washs water tank 11, and reciprocating cycle is many times, ensures that the pipeline obtains abundant washing, guarantees good operating condition.
The cleaning system further comprises a dosing loop, one end of the dosing loop is connected with the cleaning water tank 11, and the other end of the dosing loop is arranged between the cleaning pump 14 and the liquid outlet. An ejector 16 is also arranged on the dosing loop, and a medicament barrel 18 is also externally connected to the ejector 16.
In this embodiment, in order to strengthen the cleaning effect, cleaning system has set up ejector 16, can additionally join in marriage chemical agent to external medicament bucket 18, is connected to through hose 17 and adds in the medicine return circuit, utilizes the unique structure of ejector 16, sends into the medicament through ejector 16 and washs water tank 11 to beat the circulation of backflowing through the pump, mix medicament and running water, so that the washing liquid of configuration suitable concentration carries out chemical cleaning to the female pipe. According to the pollution blockage situation, different medicaments are selected, such as citric acid, non-oxidizing bactericides and the like.
As shown in fig. 1, the cleaning device further comprises a cleaning pump outlet pressure gauge 15 and a water inlet pressure gauge 20, wherein the cleaning pump outlet pressure gauge 15 is arranged between the cleaning pump 14 and the liquid outlet; the water inlet pressure gauge 20 is arranged between the two cleaning feed pipes 4 and the liquid inlet.
In this embodiment, the cleaning effect is determined by comparing the pressure of the outlet pressure gauge 15 of the cleaning pump with the pressure difference of the inlet pressure gauge 20, and the cleaning is completed when a predetermined difference is reached.
The use method of the utility model is as follows with the attached drawings: set up pressure switch and show that to report to the police when being less than the setting value when female pipe end, show that first female pipe 8 or the female pipe 9 of second jam condition appears, close the valve 22 that corresponds with this female union coupling this moment, and open cleaning pump 14, wash the water in the water tank 11 from cleaning system to this female pipe in, form the cleaning cycle, can open the medicine circuit in the cleaning process, different medicaments are selected according to different conditions, the medicament passes through ejector 16 and adds to the washing water tank 11, carry out the cleaning cycle, carry out actions such as repeated washing, soak, disinfect, scale removal to the female pipe that blocks up, set up cleaning pump export manometer 15 and washing intake pressure gauge 20, through contrast washing water supply and return water pressure difference, judge the cleaning performance, reach the predetermined difference and accomplish the washing. After the cleaning is completed, the cleaning liquid in the main pipe is emptied, and all the valves 22 in the main pipe are closed for standby.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (10)

1. A double-water-inlet main pipe and a cleaning system are characterized by comprising a first main pipe, a second main pipe and a cleaning system, wherein the first main pipe and the second main pipe are connected in parallel, and the first main pipe and the second main pipe are sequentially connected with a wastewater supply device and a wastewater treatment device to be treated along the wastewater flowing direction; the device for providing the wastewater to be treated is provided with two branch pipes, and the two branch pipes are respectively communicated with the first main pipe and the second main pipe; the wastewater treatment device is provided with two feeding pipes which are respectively communicated with the first main pipe and the second main pipe; cleaning system still is equipped with two and washs the inlet pipe and two washs the discharging pipe, two wash the inlet pipe respectively with first female pipe with the female pipe intercommunication of second, and the tie point all set up in pending waste water provide device with first female pipe the upper reaches of the tie point of the female pipe of second, two wash the discharging pipe respectively with first female pipe with the female pipe intercommunication of second, and the tie point all set up in waste water treatment device with first female pipe the low reaches of the tie point of the female pipe of second.
2. The dual inlet header and purge system of claim 1, wherein two of said branch pipes, two of said inlet pipes, two of said purge inlet pipes, and two of said purge outlet pipes are valved.
3. The dual inlet header and cleaning system of claim 1, wherein flanges and header blanking panels are provided at both ends of the first header and the second header.
4. The dual inlet manifold and cleaning system of claim 1, wherein the waste water to be treated providing means comprises a feed pump for delivering waste water to be treated; the wastewater treatment device is a filter.
5. The dual inlet header and purge system of claim 1, further comprising a header end pressure switch and a header automatic vent valve respectively disposed in said first header and said second header downstream of a connection point of said wastewater treatment device with said first header and said second header.
6. The dual inlet header and cleaning system of claim 1, further comprising a cleaning device, wherein the two cleaning inlet pipes are combined and connected to an inlet of the cleaning device, and the two cleaning outlet pipes are combined and connected to an outlet of the cleaning device.
7. The dual-inlet main pipe and cleaning system according to claim 6, wherein the cleaning device comprises a cleaning water tank and a cleaning pump, the liquid inlet is disposed on the cleaning water tank, the cleaning water tank is connected to the cleaning pump, and the cleaning pump is used for reversely introducing cleaning water into the first main pipe and/or the second main pipe through the liquid outlet.
8. The dual-inlet header and cleaning system of claim 7, further comprising a dosing loop, wherein one end of the dosing loop is connected to the cleaning water tank, and the other end of the dosing loop is disposed between the cleaning pump and the liquid outlet.
9. The dual inlet manifold and purge system of claim 7, wherein said purge apparatus further comprises a purge pump feed filter disposed between said purge tank and said purge pump.
10. The dual inlet manifold and cleaning system of claim 7, wherein said cleaning apparatus further comprises a cleaning pump outlet pressure gauge and a water inlet pressure gauge, said cleaning pump outlet pressure gauge being disposed between said cleaning pump and said liquid outlet; the inlet water pressure gauge is arranged between the two cleaning inlet pipes and the liquid inlet.
CN202123438482.3U 2021-12-30 2021-12-30 Double-water-inlet main pipe and cleaning system Active CN216512940U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123438482.3U CN216512940U (en) 2021-12-30 2021-12-30 Double-water-inlet main pipe and cleaning system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123438482.3U CN216512940U (en) 2021-12-30 2021-12-30 Double-water-inlet main pipe and cleaning system

Publications (1)

Publication Number Publication Date
CN216512940U true CN216512940U (en) 2022-05-13

Family

ID=81514694

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202123438482.3U Active CN216512940U (en) 2021-12-30 2021-12-30 Double-water-inlet main pipe and cleaning system

Country Status (1)

Country Link
CN (1) CN216512940U (en)

Similar Documents

Publication Publication Date Title
KR20170112470A (en) Pipe cleaning apparatus and pipe cleaning method
CN202876653U (en) Ceramic film filter device
CN216512940U (en) Double-water-inlet main pipe and cleaning system
CN210934996U (en) Automatic regenerating unit of resin column
CN217570004U (en) Pipeline cleaning device
CN214990326U (en) Multi-concentration ozone water preparation device
CN216630355U (en) Reverse osmosis membrane cleaning device
CN213984758U (en) Full-automatic self-cleaning plate type heat exchange device
CN114440135A (en) Lime slurry pipeline conveying system of waste incineration plant
CN206902243U (en) A kind of acid dip pickle applied to oil field filter tank
CN207076732U (en) A kind of percolate conveyance conduit descaling rinsing device
CN110841100A (en) Spray deodorization system and method
CN219297186U (en) Dosing system with cleaning function
CN205873966U (en) Waste water recycle system with test fixture
CN201592065U (en) Cleaning system for inorganic membrane water treating device
CN112665449B (en) Full-automatic self-cleaning plate type heat exchange device and cleaning control method
CN111889463B (en) Long-distance pipeline cleaning system
CN220845650U (en) Cleaning device and reverse osmosis sewage treatment system
CN213885177U (en) Filtering device
CN208104545U (en) A kind of cleaning device of aluminium ring formula ion-exchanger
CN216737872U (en) Direct drinking water system with circulating water channel
CN220016575U (en) Fluid conveying pipeline structure capable of automatically cleaning scale
CN212356844U (en) Ozone water treatment device with jet device and static mixer
CN215114173U (en) Cleaning equipment for catalytic wet oxidation heat exchanger
CN213221240U (en) Automatic online cleaning filter device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 315700 no.929 Binhai Avenue, Danxi street, Xiangshan County, Ningbo City, Zhejiang Province (main building) 1802-01

Patentee after: China Film (Zhejiang) Environmental Protection Technology Co.,Ltd.

Address before: 315700 no.929 Binhai Avenue, Danxi street, Xiangshan County, Ningbo City, Zhejiang Province (main building) 1802-01

Patentee before: Sinochem (Zhejiang) Membrane Industry Development Co.,Ltd.