CN210065455U - Intelligent sewage treatment system - Google Patents
Intelligent sewage treatment system Download PDFInfo
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- CN210065455U CN210065455U CN201920495338.7U CN201920495338U CN210065455U CN 210065455 U CN210065455 U CN 210065455U CN 201920495338 U CN201920495338 U CN 201920495338U CN 210065455 U CN210065455 U CN 210065455U
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Abstract
The utility model relates to a sewage purification technical field, concretely relates to intelligence sewage treatment system, still include water quality monitoring ware, two three way solenoid valves, the level gauge, automatically controlled valve and sludge discharge pump, the level gauge is installed in the equalizing basin, water pump outlet and good oxygen pond intercommunication, the delivery outlet of fan inserts good oxygen bottom of the pool portion, good oxygen bottom of the pool portion is through the pipeline and the one side intercommunication of sedimentation tank, sludge discharge pump and sedimentation tank bottom intercommunication, the lift pump exports and the lift pit intercommunication, the first delivery outlet of two three way solenoid valves and equalizing basin intercommunication, two three way solenoid valve second delivery outlet and discharge port intercommunication. The utility model discloses a substantive effect is: the running state of the water pump is adjusted according to the liquid level meter to adapt to the change of the sewage flow, the running power of the fan is adjusted according to the detection result of the dissolved oxygen concentration monitor to adapt to the change of the sewage pollution degree, and the sewage is discharged or reflows to the regulating tank for retreatment according to the monitoring result of the water quality monitor.
Description
Technical Field
The utility model relates to a sewage purification technical field, concretely relates to intelligence sewage treatment system.
Background
Along with the continuous promotion and development of the urbanization process, the living standard of residents is improved, the discharge of domestic sewage and various industrial wastewater is increasingly aggravated while the water consumption is increased, the discharge amount is continuously increased, the water body environment is continuously worsened due to the increasingly complex sewage components, and the living quality and the urban development of people are seriously influenced. When the quality of sewage changes, the traditional sewage treatment equipment has no corresponding self-regulation mechanism, and can not ensure the requirement of discharging/recycling the effluent of the equipment for a long time. At present, the operation states of all power equipment can be manually controlled on the control site of most sewage treatment equipment or the intermittent operation of the equipment can be controlled only through a time relay, the power equipment is easy to operate in a full-load state, the fault cannot be timely and efficiently fed back, and operation and maintenance managers cannot efficiently and rapidly maintain and manage. Therefore, the development of an intelligent sewage treatment system capable of automatically adapting to the sewage flow and the pollution degree is urgently needed.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the current sewage treatment system is lack of the technical problems of self-adaptive sewage flow and pollution degree. Provides an intelligent sewage treatment system capable of adaptively adjusting purification parameters.
In order to solve the technical problem, the utility model discloses the technical scheme who takes does: an intelligent sewage treatment system comprises a PLC (programmable logic controller), a sewage inlet, a discharge port, an adjusting tank, an aerobic tank, a sedimentation tank, a lifting tank, a water pump, a fan and a lifting pump, and further comprises a water quality monitor, a two-position three-way electromagnetic valve, a liquid level meter, an electric control valve and a sludge discharge pump, wherein the sewage inlet inputs sewage into the adjusting tank, the liquid level meter is installed in the adjusting tank, the liquid level meter monitors the water level in the adjusting tank, the input port of the water pump is communicated with the adjusting tank, the output port of the water pump is communicated with the aerobic tank, the output port of the fan is inserted into the bottom of the aerobic tank, the bottom of the aerobic tank is communicated with one side of the sedimentation tank through a pipeline, the electric control valve is installed on the pipeline, the sludge discharge pump is communicated with the bottom of the sedimentation tank, the input port of the lifting pump is communicated with the sedimentation tank, the output port, two three way solenoid valves install in the water quality monitoring ware rear, two three way solenoid valve input ports and lift pit intercommunication, the first delivery outlet of two three way solenoid valves and equalizing basin intercommunication, two three way solenoid valve second delivery outlet and discharge port intercommunication, level gauge, water pump, fan, automatically controlled valve, two three way solenoid valves and water quality monitoring ware all are connected with the PLC controller, the mud concentration meter is equipped with to the sedimentation tank liam, and the mud concentration meter detects the concentration of mud in the sedimentation tank, and the mud concentration meter is connected with the PLC controller. The level gauge detects the water level in the equalizing basin, and the PLC controller is the pin from the PLC controller of taking analog-to-digital conversion as the water level, or uses the level gauge from taking digital-to-analog conversion, and the PLC controller contrasts the level gauge testing result and the minimum liquid level of predetermineeing and the highest liquid level contrast, if be less than minimum liquid level then close the water pump, if be higher than the highest liquid level then open the water pump and draw water. The sludge concentration meter detects the concentration of sludge in the sedimentation tank, and if the concentration of the sludge exceeds a set threshold value, the sludge discharge pump is started. The water quality monitor detects the water quality discharged from the lifting tank, if the water quality is qualified, the two-position three-way electromagnetic valve is controlled to discharge the treated sewage through the discharge port, and if the water quality is unqualified, the two-position three-way electromagnetic valve is controlled to return the sewage to the regulating tank for purification treatment again. The application only records improved sewage treatment equipment and links, and other sewage treatment links can be added according to the prior art according to the sewage quality.
Preferably, the level gauge includes top cap, urceolus, support ring, collar, jib, pressure sensor and cushion valve, the top cap is installed at the urceolus top, collar fixed mounting is in the urceolus, jib top and collar fixed connection, the collar is placed in the support ring top, installs between collar and the support ring pressure sensor, pressure sensor is connected with control PLC, the cushion valve is installed in urceolus bottom, the cushion valve is the only passageway of the inside and outside water of urceolus, urceolus top and atmosphere intercommunication, the jib is the cylinder, jib top height is higher than the height of highest water level. The jib need select for use the material preparation that density is greater than sewage for use, and the jib and the weight that the mount ring equals jib and mount ring to pressure sensor subtract the buoyancy that the jib received, and the jib is cylindrically, and the buoyancy that it received is determined by the degree of depth that the jib submerged in sewage, therefore only need detect pressure sensor's detected value and jib bottom height, both can obtain the current water level of equalizing basin. The buffer valve can buffer the flowing speed of liquid between the outer barrel and the regulating reservoir, so that the frequent change of a liquid level detection result caused by the ripple of the liquid level is avoided, and the detection result is more stable.
Preferably, the buffer valve is a layer of rubber film, the rubber film seals the bottom of the outer cylinder, and the rubber film is provided with a cut penetrating through the rubber film. The rubber membrane has certain resistance, just can open when the liquid level in the urceolus differs more than the take-up pit liquid level by a certain height, makes the water flow through and then makes the urceolus the liquid level height of equalizing pit the same basically, has the ripple when the take-up pit liquid level, as long as the ripple range is less than the required difference in height of opening the rubber membrane, just can avoid the ripple to arouse the frequent change of testing result of level gauge.
Preferably, the buffer valve comprises a cylinder, a hollow ball and a blocking fence, two ends of the cylinder are open, the blocking fence is installed at two ends of the cylinder, the density of the hollow ball is equal to that of sewage, the outer diameter of the hollow ball is abutted to the inner wall of the cylinder, the blocking fence allows the outer edge of the hollow ball to be separated from the inner wall of the sleeve, and the blocking fence enables part of the ball of the hollow ball to be located in the cylinder all the time. When there is the difference in height between the liquid level in the urceolus and the regulation pond liquid level, the clean shot atress removes, and when the drum both ends that the hollow ball removed, the drum just can switch on for rivers pass through and reduce the liquid level difference. If the water surface of the adjusting tank has ripples, the change frequency of the height difference caused by the ripples is high, the height of the ripples changes when the hollow ball cannot move to one end of the cylinder, so that the hollow ball can only move in the cylinder, and the hollow ball does not have enough time to reach the two ends of the cylinder, so that the liquid level in the outer cylinder is almost unchanged, and the detection result of the liquid level meter cannot change frequently.
Preferably, the liquid level meter is arranged in the sedimentation tank and is connected with the control PLC. When the liquid level in the sedimentation tank is lower than a set value, the PLC controls the lifting pump to stop working, and the lifting pump is prevented from no-load operation.
Preferably, the system also comprises a pressurizing pump and a water pressure meter, wherein the pressurizing pump and the water pressure meter are both arranged at the outlet of the lifting pool, the pressurizing pump is arranged in front of the water quality monitor, the water pressure meter is arranged behind the pressurizing pump, and the pressurizing pump and the water pressure are both connected with the control PLC.
Preferably, the system also comprises a dissolved oxygen concentration monitor, wherein the dissolved oxygen concentration monitor is arranged on the aerobic tank, the monitoring end of the dissolved oxygen concentration monitor is inserted into the aerobic tank, the concentration of the dissolved oxygen in the water body in the aerobic tank is monitored, and the dissolved oxygen concentration monitor is connected with the control PLC.
Preferably, the intelligent control system further comprises a communication module and an interaction module, wherein the communication module is in communication connection with the control PLC, the interaction module comprises display equipment and data input equipment, and the display equipment and the data input equipment are both connected with the communication module. The operating state of the control PLC can be checked through the interaction module, and the operating parameters of the control PLC are changed on line.
The utility model discloses a substantive effect is: the running state of the water pump is adjusted according to the liquid level meter to adapt to the change of the sewage flow, the running power of the fan is adjusted according to the detection result of the dissolved oxygen concentration monitor to adapt to the change of the sewage pollution degree, and the sewage is discharged or reflows to the regulating tank for retreatment according to the monitoring result of the water quality monitor.
Drawings
FIG. 1 is a schematic view of a sewage treatment system according to an embodiment.
FIG. 2 is a schematic diagram of a two-level meter according to an embodiment.
FIG. 3 is a three-dimensional cross-sectional view of a trim valve according to an embodiment.
Wherein: 1. sewage inlet, 2, a liquid level meter, 3, a regulating tank, 4, a recycling pipeline, 5, a water pump, 6, an aerobic tank, 7, a pipeline, 8, a sludge discharge pump, 9, a sedimentation tank, 10, a lift pump, 11, a lift tank, 12, a pressure pump, 13, a dissolved oxygen concentration monitor, 14, a fan, 15, a water quality monitor, 16, a water pressure meter, 17, a two-position three-way electromagnetic valve, 18, a discharge port, 19, an electric control valve, 201, a top cover, 202, a mounting ring, 203, a support ring, 204, a suspender, 205, a cylinder, 206, an outer cylinder, 207, a pressure sensor, 208, a hollow ball, 209 and a barrier.
Detailed Description
The following provides a more detailed description of the present invention, with reference to the accompanying drawings.
The first embodiment is as follows:
an intelligent sewage treatment system, as shown in figure 1, a sewage inlet 1 inputs sewage into a regulating tank 3, a liquid level meter 2 is arranged in the regulating tank 3, the liquid level meter 2 monitors the water level in the regulating tank 3, an input port of a water pump 5 is communicated with the regulating tank 3, an output port of the water pump 5 is communicated with an aerobic tank 6, an output port of a fan 14 is inserted into the bottom of the aerobic tank 6, a dissolved oxygen concentration monitor 13 is arranged on the aerobic tank 6, a monitoring end of the dissolved oxygen concentration monitor 13 is inserted into the aerobic tank 6, the concentration of dissolved oxygen in water in the aerobic tank 6 is monitored, the dissolved oxygen concentration monitor 13 is connected with a control PLC, the bottom of the aerobic tank 6 is communicated with one side of a sedimentation tank 9 through a pipeline 7, an electric control valve 19 is arranged on the pipeline 7, a sludge discharge pump 8 is communicated with the bottom of the sedimentation tank 9, the liquid level meter 2 is arranged in the sedimentation tank 9, the, the delivery outlet of the lift pump 10 is communicated with the lift pool 11, the booster pump 12 and the water pressure meter 16 are both installed at the outlet of the lift pool 11, the booster pump 12 is installed in front of the water quality monitor 15, the water pressure meter 16 is installed behind the booster pump 12, and the booster pump 12 and the water pressure are both connected with the control PLC. Water quality monitoring ware 15 and two three way solenoid valve 17 are all installed in 11 exits in the lift pit, two three way solenoid valve 17 is installed in 15 backs of water quality monitoring ware, two three way solenoid valve 17 input ports are through retrieval and utilization pipeline 4 and 11 intercommunications of lift pit, two three way solenoid valve 17 first delivery outlet and equalizing basin 3 intercommunication, two three way solenoid valve 17 second delivery outlet and discharge port 18 intercommunication, level gauge 2, water pump 5, fan 14, electrical control valve 19, two three way solenoid valve 17 and water quality monitoring ware 15 all are connected with the PLC controller, the mud concentration meter is equipped with to sedimentation tank 9 liam, the mud concentration meter detects the concentration of mud in sedimentation tank 9, the mud concentration meter is connected with the PLC controller. The communication module is in communication connection with the control PLC, the interaction module comprises a display device and a data input device, and the display device and the data input device are both connected with the communication module.
The working method of the embodiment comprises the following steps: the level gauge 2 detects the water level in the equalizing basin 3, and the PLC controller is the pin from the PLC controller of taking analog-to-digital conversion as the water level, or uses the level gauge 2 from taking digital-to-analog conversion, and the 2 testing results of PLC controller contrast level gauge and the minimum liquid level of presetting and the highest liquid level contrast, if be less than minimum liquid level then close water pump 5, if be higher than the highest liquid level then open water pump 5 and draw water. The sludge concentration meter detects the concentration of the sludge in the sedimentation tank 9, and if the concentration of the sludge exceeds a set threshold value, the sludge discharge pump 8 is started. The water quality monitor 15 detects the water quality discharged from the lifting tank 11, controls the two-position three-way electromagnetic valve 17 to discharge the treated sewage through the discharge port 18 if the water quality is qualified, and controls the two-position three-way electromagnetic valve 17 to return the sewage to the regulating tank 3 for purification treatment again if the water quality is unqualified. The application only records improved sewage treatment equipment and links, and other sewage treatment links can be added according to the prior art according to the sewage quality. The operating state of the control PLC can be checked through the interaction module, and the operating parameters of the control PLC are changed on line. When the liquid level in the sedimentation tank 9 is lower than a set value, the PLC controls the lift pump 10 to stop working, and the no-load operation of the lift pump 10 is avoided. The water pressure gauge 16 detects the pressure at the water outlet of the pressure pump 12, and the PLC automatically adjusts the power of the pressure pump 12 according to the detection result of the water pressure gauge 16, so that the pressure pump 12 outputs constant water pressure.
Example two:
an intelligent sewage treatment system, a liquid level meter 2 is specifically modified in the embodiment, as shown in fig. 2, the liquid level meter 2 includes a top cover 201, an outer cylinder 206, a support ring 203, a mounting ring 202, a suspender 204, a pressure sensor 207 and a buffer valve, the top cover 201 is installed at the top of the outer cylinder 206, the support ring 203 is fixedly installed in the outer cylinder 206, the top end of the suspender 204 is fixedly connected with the mounting ring 202, the mounting ring 202 is placed above the support ring 203, the pressure sensor 207 is installed between the mounting ring 202 and the support ring 203, the pressure sensor 207 is connected with a control PLC, the buffer valve is installed at the bottom of the outer cylinder 206, the buffer valve is a unique channel between the inside of the outer cylinder 206 and an external water body, the top of the outer cylinder 206 is communicated with the atmosphere, the suspender. As shown in fig. 3, the cushion valve comprises a cylinder 205, hollow spheres 208 and a barrier 209, wherein two ends of the cylinder 205 are open, the barrier 209 is installed at two ends of the cylinder 205, the density of the hollow spheres 208 is equivalent to that of sewage, the outer diameter of the hollow spheres 208 is abutted against the inner wall of the cylinder 205, the barrier 209 allows the outer edges of the hollow spheres 208 to be separated from the inner wall of the sleeve, and the barrier 209 enables part of the spheres of the hollow spheres 208 to be located in the cylinder 205. The hanger bar 204 is made of a material having a density greater than that of the sewage.
The working principle of the embodiment is as follows: the pressure of the suspension rod 204 and the mounting ring 202 on the pressure sensor 207 is equal to the weight of the suspension rod 204 and the mounting ring 202 minus the buoyancy force of the suspension rod 204, the suspension rod 204 is cylindrical, and the buoyancy force is determined by the depth of the suspension rod 204 submerged in the sewage, so that only the detection value of the pressure sensor 207 and the bottom end height of the suspension rod 204 need to be detected, and the current water level of the regulating reservoir 3 can be obtained. The buffer valve can buffer the flowing speed of the liquid between the outer cylinder 206 and the regulating reservoir 3, and avoid frequent change of the liquid level detection result due to the ripple of the liquid level, so that the detection result is more stable. When the liquid level in the outer cylinder 206 is different from the liquid level in the regulating reservoir 3, the hollow ball 208 is forced to move, and when the hollow ball 208 moves to two ends of the cylinder 205, the cylinder 205 is conducted, so that water flows through and the liquid level difference is reduced. If the water surface of the adjusting tank 3 has ripples, the change frequency of the height difference caused by the ripples is high, and the height of the ripples changes when the hollow ball 208 does not move to one end of the cylinder 205, so that the hollow ball 208 can only move in the cylinder 205, and insufficient time is available for reaching the two ends of the cylinder 205, so that the liquid level in the outer cylinder 206 is almost unchanged, and the detection result of the liquid level meter 2 is not changed frequently. The rest of the structure is the same as the first embodiment.
Example three:
an intelligent sewage treatment system is provided in the embodiment on the basis of the second embodiment, and another implementation mode of a buffer valve on a liquid level meter 2 is provided. In this embodiment, the cushion valve is a rubber film that seals the bottom of the outer cylinder 206 and is cut with cuts through the rubber film.
The working principle of the embodiment is as follows: the rubber membrane has certain resistance, just will open when the liquid level difference exceeds certain height with equalizing basin 3 liquid level in the urceolus 206, makes the water flow through and then makes the urceolus 206 the same basically with the liquid level height of equalizing basin 3, has the ripple when equalizing basin 3 liquid level, as long as the range of ripple is less than the required difference in height of opening the rubber membrane, just can avoid the ripple to arouse that the measuring result of level gauge 2 frequently changes. The rest of the structure is the same as the second embodiment.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.
Claims (8)
1. An intelligent sewage treatment system comprises a PLC controller, a sewage inlet, a discharge outlet, an adjusting tank, an aerobic tank, a sedimentation tank, a lifting tank, a water pump, a fan and a lifting pump,
the sewage treatment device also comprises a water quality monitor, a two-position three-way electromagnetic valve, a liquid level meter, an electric control valve and a sludge discharge pump, wherein the sewage inlet inputs sewage into the regulating reservoir, the liquid level meter is arranged in the regulating reservoir, the liquid level meter monitors the water level in the regulating reservoir, the water pump input port is communicated with the regulating reservoir, the water pump output port is communicated with the aerobic reservoir, the output port of the fan is inserted into the bottom of the aerobic reservoir, the bottom of the aerobic reservoir is communicated with one side of the sedimentation reservoir through a pipeline, the electric control valve is arranged on the pipeline, the sludge discharge pump is communicated with the bottom of the sedimentation reservoir, the lifting pump input port is communicated with the sedimentation reservoir, the lifting pump output port is communicated with the lifting reservoir, the water quality monitor and the two-position three-way electromagnetic valve are both arranged at the lifting reservoir outlet, the two-, the first delivery outlet of two three-way solenoid valve communicates with the equalizing basin, and two three-way solenoid valve second delivery outlet communicates with the discharge port, level gauge, water pump, fan, automatically controlled valve, two three-way solenoid valve and water quality monitor all are connected with the PLC controller.
2. The intelligent sewage treatment system of claim 1,
the liquid level meter comprises a top cover, an outer barrel, a support ring, a mounting ring, a hanging rod, a pressure sensor and a buffer valve, wherein the top cover is installed at the top of the outer barrel, the support ring is fixedly installed in the outer barrel, the top end of the hanging rod is fixedly connected with the mounting ring, the mounting ring is arranged above the support ring, the pressure sensor is installed between the mounting ring and the support ring, the pressure sensor is connected with a control PLC, the buffer valve is installed at the bottom of the outer barrel, the buffer valve is the only channel between the inner part of the outer barrel and the outer water body, the top of the outer barrel is communicated with the atmosphere, the hanging rod is a cylinder, and the top end.
3. The intelligent sewage treatment system of claim 2,
the buffer valve is a layer of rubber film, the rubber film seals the bottom of the outer barrel, and an incision penetrating through the rubber film is carved on the rubber film.
4. The intelligent sewage treatment system of claim 2,
the buffer valve comprises a cylinder, hollow balls and a blocking fence, the two ends of the cylinder are open, the blocking fence is installed at the two ends of the cylinder, the density of the hollow balls is equal to that of sewage, the outer diameter of the hollow balls is abutted to the inner wall of the cylinder, the blocking fence allows the outer edges of the hollow balls to be separated from the inner wall of the sleeve, and the blocking fence enables part of balls of the hollow balls to be located in the cylinder all the time.
5. The intelligent sewage treatment system of claim 1, 2, 3 or 4,
still include force (forcing) pump and hydrostatic meter, force (forcing) pump and hydrostatic meter are all installed in the lifting basin exit, the force (forcing) pump is installed water quality monitor the place ahead, the hydrostatic meter is installed the force (forcing) pump rear, force (forcing) pump and water pressure all are connected with control PLC.
6. The intelligent sewage treatment system of claim 1, 2, 3 or 4,
still include dissolved oxygen concentration monitor, dissolved oxygen concentration monitor installs on good oxygen pond, dissolved oxygen concentration monitor monitoring end inserts good oxygen pond, the concentration of monitoring good oxygen pond water dissolved oxygen, dissolved oxygen concentration monitor and control PLC are connected.
7. The intelligent sewage treatment system of claim 5,
still include dissolved oxygen concentration monitor, dissolved oxygen concentration monitor installs on good oxygen pond, dissolved oxygen concentration monitor monitoring end inserts good oxygen pond, the concentration of monitoring good oxygen pond water dissolved oxygen, dissolved oxygen concentration monitor and control PLC are connected.
8. The intelligent sewage treatment system of claim 1, 2, 3 or 4,
the sedimentation tank is internally provided with the liquid level meter which is connected with a control PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920495338.7U CN210065455U (en) | 2019-04-12 | 2019-04-12 | Intelligent sewage treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920495338.7U CN210065455U (en) | 2019-04-12 | 2019-04-12 | Intelligent sewage treatment system |
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| Publication Number | Publication Date |
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| CN210065455U true CN210065455U (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920495338.7U Active CN210065455U (en) | 2019-04-12 | 2019-04-12 | Intelligent sewage treatment system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111908705A (en) * | 2020-06-18 | 2020-11-10 | 北京绿都浩天环保科技有限公司 | Nitrogen and phosphorus removal process based on multi-effect medical sewage treatment |
| CN112978822A (en) * | 2021-03-11 | 2021-06-18 | 广东新一代工业互联网创新技术有限公司 | Tail end processing device with water quality monitoring function and using method |
| CN114837287A (en) * | 2022-03-30 | 2022-08-02 | 中徽生态环境有限公司 | Bury formula sewage treatment plant suitable for rural single household type human settlements |
-
2019
- 2019-04-12 CN CN201920495338.7U patent/CN210065455U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111908705A (en) * | 2020-06-18 | 2020-11-10 | 北京绿都浩天环保科技有限公司 | Nitrogen and phosphorus removal process based on multi-effect medical sewage treatment |
| CN112978822A (en) * | 2021-03-11 | 2021-06-18 | 广东新一代工业互联网创新技术有限公司 | Tail end processing device with water quality monitoring function and using method |
| CN114837287A (en) * | 2022-03-30 | 2022-08-02 | 中徽生态环境有限公司 | Bury formula sewage treatment plant suitable for rural single household type human settlements |
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Address after: 311100 Building 2, No.20 Hengyi street, Yuhang Economic and Technological Development Zone, Yuhang District, Hangzhou City, Zhejiang Province Patentee after: Nanfang Zhishui Technology Co.,Ltd. Address before: 311100 Building 2, No.20 Hengyi street, Yuhang Economic and Technological Development Zone, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: NANFANG PUMP ZHISHUI (HANGZHOU) TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20210420 Address after: 311100 1st floor, building 5, No.20 Hengyi street, Yuhang Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee after: Southern Environmental Technology (Hangzhou) Co.,Ltd. Address before: 311100 No. 20 Hengyi Street, Yuhang Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee before: Nanfang Zhishui Technology Co.,Ltd. |
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