CN212450981U - Treatment system of rain and sewage mixed flow water - Google Patents
Treatment system of rain and sewage mixed flow water Download PDFInfo
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- CN212450981U CN212450981U CN202021147219.1U CN202021147219U CN212450981U CN 212450981 U CN212450981 U CN 212450981U CN 202021147219 U CN202021147219 U CN 202021147219U CN 212450981 U CN212450981 U CN 212450981U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 127
- 239000010865 sewage Substances 0.000 title claims abstract description 80
- 238000006243 chemical reaction Methods 0.000 claims abstract description 32
- 239000010802 sludge Substances 0.000 claims abstract description 30
- 238000000746 purification Methods 0.000 claims abstract description 22
- 230000033228 biological regulation Effects 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims abstract description 13
- 239000003814 drug Substances 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 13
- 230000004913 activation Effects 0.000 claims description 12
- 238000012806 monitoring device Methods 0.000 claims description 8
- 239000002893 slag Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 7
- 239000008213 purified water Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 10
- 230000002265 prevention Effects 0.000 abstract description 2
- 238000003911 water pollution Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000007689 inspection Methods 0.000 description 7
- 229940079593 drug Drugs 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 239000010813 municipal solid waste Substances 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
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- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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Abstract
The utility model relates to a water pollution prevention and cure field provides a processing system of dirty mixed flow water of rain, include: the system comprises a rain measuring cylinder (3), a flowmeter (2), a storage regulation pool (12), a purification system and a control device (8); a first water level meter is arranged in the rain gauge; the flowmeter is arranged at the water inlet of the cutoff well (4); the water inlet of the regulating and storing pool is connected with the water outlet of the intercepting well and used for receiving the mixed rainwater and sewage flow overflowing from the intercepting well, and a second water level meter is arranged in the regulating and storing pool and connected with the purification system to convey the mixed rainwater and sewage flow to the purification system; the purification system comprises a water pump (16), a dispensing room (13), a reaction tank (15), a sludge settling tank (18) and a sludge pump (19); the control device is connected with the first water level gauge, the flowmeter, the second water level gauge, the water pump of the purification system and the dispensing room in a communication mode. Adopt the utility model discloses a system can handle rain sewage mixed flow water fast, high-efficiently, reduces sewage treatment plant's load simultaneously.
Description
Technical Field
The utility model relates to a water pollution prevention and cure field, concretely relates to processing system of dirty mixed flow water of rain.
Background
In recent years, in the urban development and construction process of China, although a newly-built drainage system adopts a split system, due to the reasons of lack of scientific method guidance, insufficient construction supervision and the like, phenomena of mixed connection, misconnection and the like of pipe networks in different degrees generally exist in practice, and due to the complex conditions of mixed connection and misconnection of the pipe networks, the complete distribution of rain and sewage is difficult to achieve in a short time. The mixed connection and the misconnection of the pipe network easily cause the direct drainage of the sewage in dry weather at the discharge port, and the rainwater mixed with a large amount of sewage overflows into the river channel when raining, so that the rainwater becomes an important pollution source of the urban water body and the water environment quality faces serious threats.
The application number 201621271119.3 is a Chinese patent application, which provides a rain and sewage mixed flow wastewater treatment system, the system discharges rain and sewage mixed flow wastewater into an ecological oxidation pond after anaerobic reaction, and the ecological oxidation pond is degraded by microorganisms and then discharged into a river channel. When rainfall is excessive, the mixed rain and sewage flow of the system can be discharged into a municipal sewage pipe well, and the treatment capacity of a sewage treatment plant can be increased. Moreover, the system adopts a biological treatment process for treatment, and has the defects of long hydraulic retention time and limited treatment capacity when the water quantity is large in rainy days.
Chinese patent application 201810359824.6 discloses an intelligent control method for a multifunctional rainwater storage tank, which comprises the steps of discharging water in the storage tank in advance according to the forecasted rainfall amount to accommodate the sufficient volume of the rainstorm peak value flowing out in advance, closing a water inlet valve of the storage tank and beginning to precipitate when the liquid level in the storage tank reaches a high limit, detecting the water quality of the liquid level at the uppermost layer in the storage tank after a certain time (generally about 8 hours) of precipitation, and selecting to discharge the water into a sewage pipeline or supply the water to a user according to the detection result. The treatment time by the method is long, and the rainwater cannot be quickly treated if continuous rainstorm occurs.
The application number is 201910800825.4's chinese patent application provides a rain sewage confluence pipeline sewage collection processing apparatus, when this processing apparatus purified sewage, earlier the rubbish in the interception sewage, discharge sewage treatment pond with sewage again, sewage treatment pond handles sewage through the coagulating sedimentation, get rid of mud from the bottom of the pool, the pond bed deep purification district is discharged into to the clear solution, through the absorption of plant, the filtration of filler and the degradation of microorganism, further purification water quality, discharge the river course at last. The adoption of the processing device has the following disadvantages: (1) the treatment device adopts a sewage treatment mode, and basically has no function of quickly treating rainwater when the rainfall is large; (2) the preparation of the reagent for coagulation needs long activation time and short shelf life, rainfall has uncertainty, the reagent needs to be prepared in advance according to the rainfall condition of weather forecast, and the whole process needs manual work to adjust the preparation of the reagent according to the rainfall condition, if a quantitative reagent is prepared in advance but the rainfall is insufficient, waste is easy to cause, and when the rainfall is too large, the requirement of water quality treatment cannot be met.
Therefore, in order to reduce the occupied volume of the storage tank, reduce the load of the sewage treatment plant, and rapidly treat the mixed rainwater and sewage water, the development of a treatment system for the mixed rainwater and sewage water is urgently needed.
SUMMERY OF THE UTILITY MODEL
A plurality of problems to prior art existence, the utility model provides a processing system of dirty mixed flow water of rain, include: the system comprises a rain measuring cylinder, a flowmeter, a regulation and storage tank, a purification system and a control device; wherein,
a first water level meter is arranged in the rain gauge;
the flowmeter is arranged at the water inlet of the cutoff well;
the water inlet of the regulating and storing pool is connected with the water outlet of the intercepting well and receives the mixed rain and sewage flow overflowing from the intercepting well, and a second water level meter is arranged in the regulating and storing pool and connected with the purification system to convey the mixed rain and sewage flow to the purification system;
the purification system comprises a water pump, a dispensing room, a reaction tank, a sludge settling tank and a sludge pump, the water pump conveys the rain and sewage mixed flow water in the regulation and storage tank to the reaction tank, the dispensing room supplies medicines to the reaction tank, a purified water discharge port is arranged in the reaction tank, the sludge settling tank is positioned at the downstream of the reaction tank, and the sludge pump is arranged in the sludge settling tank and discharges sludge to a downstream sludge collection device;
the control device is connected with the first water level gauge, the flowmeter, the second water level gauge, the water pump of the purification system and the dispensing room in a communication mode.
The rain and sewage mixed water is a mixture of rain water and domestic sewage. In rainy days, the proportion of rainwater in the rainwater-sewage mixed flow water is large; when the rain and sewage mixed flow does not rain, the sewage in the rain and sewage mixed flow occupies a larger amount or only has sewage. The sewage comprises domestic sewage and water outside the pipeline. The external water of the pipeline refers to external water entering the drainage pipeline from the position not tight in the pipeline, and comprises municipal general water, water poured back from rivers and infiltrated underground water.
According to the utility model discloses an example embodiment, the regulation pond is equipped with the overflow mouth, and the overflow mouth is not lower than the pump water level that opens of regulation pond.
According to the utility model discloses an example embodiment, including two dispensing barrels between dispensing, respectively first dispensing barrel and second dispensing barrel, first dispensing barrel with the second dispensing barrel all includes dispensing groove, activation pond and medicine outlet, and the dispensing groove provides quantitative medicament to the activation pond, and the activation pond is connected with the medicine outlet, the medicine outlet to the reaction tank supplies medicine, and first dispensing barrel and second dispensing barrel all are connected with controlling means communication ground.
According to an exemplary embodiment of the invention, the control device comprises a display and/or a plurality of signal lights, which display and/or plurality of signal lights show the operating state of the processing system.
According to an example embodiment of the present invention, the first and second water level gauges each comprise a vertical bar type float valve and/or an electronic level gauge.
According to the utility model discloses an example embodiment, still include between the grid, water inlet between the grid with the delivery port of vatch basin is connected, and the delivery port between the grid is connected with the water inlet of regulation pond, is equipped with the grid machine between the grid, the grid machine with controlling means connects with communicating, and the grid machine is equipped with the bars sediment bucket in the one end with solid separation.
According to an example embodiment of the present invention, the apparatus further comprises an alarm device.
According to an exemplary embodiment of the present invention, the alarm device is communicatively connected to the grid slag bucket.
According to the utility model discloses an example embodiment, be equipped with jam rate monitoring devices in between the grid, jam rate monitoring devices with alarm device connects with the communication, and jam rate monitoring devices is used for monitoring the rivers condition of flowing around the dirty mixed flow rivers of rain through the grid machine.
According to the utility model discloses an example embodiment is equipped with the third fluviograph in the mud basin, the third fluviograph with alarm device connects with the communication.
According to an example embodiment of the present invention, the third water level gauge comprises a vertical rod type float valve and/or an electronic liquid level gauge.
According to an exemplary embodiment of the present invention, a separation device is disposed in the reaction tank, and the separation device is used for separating concrete and liquid after reaction. The concrete after reaction is sludge, and the liquid after reaction is clear water.
The utility model discloses a have beneficial effect to be:
the utility model discloses be equipped with the flowmeter in the upper reaches of rain and sewage mixed flow water, combine opening and closing of the water level control clean system of rain graduated flask measuring rainfall and regulation pond, through the utility model discloses a processing system can just begin to dispense when the rain and sewage mixed flow water has not yet reachd the regulation pond to adopt two dispensing barrels to dispense in turn, when making rain and sewage mixed flow water reachd the reaction tank, the medicament of dispensing barrel preparation reaches the best effect, can handle rain and sewage mixed flow water fast, high-efficiently, reduces sewage treatment plant's load simultaneously.
Drawings
FIG. 1 is a schematic view of a system for treating mixed rainwater and sewage.
The system comprises an inspection well at the upstream of the intercepting well, a flowmeter, a rain measuring cylinder, a 4 intercepting well, an overflow weir, a 6 intercepting port, a 7 duty room, a control device, a 9 grid room, a 10 grid machine, a 11 grid slag barrel, a 12 regulating and storing tank, a 13 dispensing room, a 14 medicine barrel, a 15 reaction tank, a 16 water pump, a 17 overflowing port, an 18 sludge settling tank, a 19 sludge pump, a 20 tail end inspection well and a 21 purified water discharge port.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present invention, which are not necessarily drawn to scale.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, steps, and so forth. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the invention.
According to an aspect of the present invention, there is provided a system for treating mixed flow of rain and sewage, as shown in fig. 1, comprising: the device comprises a rain measuring cylinder 3, a flowmeter 2, a blockage rate monitoring device, a grid room 9, a regulation and storage tank 12, a purification system, a control device 8 and an alarm device.
The rain gauge 3 is arranged on the ground to receive rainwater, a first water level meter for measuring rainfall is arranged in the rain gauge 3, and the first water level meter adopts a vertical rod type ball float valve and/or an electronic liquid level meter.
The flowmeter 2 is arranged in a pipeline between the inspection well 1 at the upper part of the intercepting well 4 and a water inlet of the intercepting well 4 and is used for measuring the flow of rain and sewage mixed flowing water entering the intercepting well 4, and the rain and sewage mixed flowing water is a mixture of rainwater and domestic sewage.
The blockage rate monitoring device is arranged in the grid room 9 and used for monitoring the blockage condition of the rain and sewage mixed flow water in the grid room 9 and monitoring the water flow condition of the rain and sewage mixed flow water flowing through the front and the back of the grid machine 10. The clogging rate monitoring means includes a flow meter or a water level meter disposed upstream and downstream of the grille machine 10.
The water inlet of the grid room 9 is connected with the water outlet of the intercepting well 4, the water outlet of the grid room 9 is connected with the water inlet of the regulating and storing pool 12, a grid machine 10 for intercepting and conveying solid in the rain and sewage mixed flow water is arranged in the grid room 9, a grid slag barrel 11 is arranged at one end, separated from the solid, of the grid machine 10, and the grid slag barrel 11 is used for collecting the solid conveyed by the grid machine 10. Wherein the solid comprises garbage, large-particle suspended matters and large-particle floating matters.
The regulation reservoir 12 receives the rain and sewage mixed water overflowing from the intercepting well 4 and flowing through the grating space 9. The regulation pond 12 is established in the low reaches of vatch basin 4, and when rain sewage mixed flow water yield is too big, the damming mouth 6 of vatch basin 4 can not be with all rain sewage mixed flow water discharge to sewage treatment plant, and the rain sewage mixed flow water that exceeds overflow weir 5 this moment overflows, passes through between 9 inflow regulation pond 12 in the grid from the delivery port of vatch basin 4. The regulation pool 12 is also connected to a purification system to which the rain and sewage mixed flow is delivered. The regulation and storage tank 12 has the following three functions: (1) a distribution tank as a reaction tank 15 of the purification system; (2) storing the coagulation medicament to prepare the rain and sewage mixed flow water during the activation period; (3) regulating and storing the rain and sewage mixed flow water which exceeds the treatment capacity of the reaction tank 15. A second water level meter and an overflow port 17 are arranged in the regulating and storing tank 12, the second water level meter adopts a vertical rod type ball float valve and/or an electronic liquid level meter and is used for detecting the water level in the regulating and storing tank 12; the overflow port 17 is not lower than the pump-starting water level of the regulation and storage tank 12, the downstream of the overflow port 17 is provided with a tail end inspection well 20, and the tail end inspection well 20 discharges water into a river channel through a discharge port.
The purification system comprises a water pump 16, a dispensing room 13, a reaction tank 15, a sludge settling tank 18 and a sludge pump 19. The water pump 16 conveys the mixed flow of rain and sewage in the storage tank 12 to the reaction tank 15. The dispensing room 13 supplies the medicines to the reaction tank 15, and the dispensing room 13 comprises two dispensing barrels 14, namely a dispensing barrel A and a dispensing barrel B. The A dispensing barrel and the B dispensing barrel respectively comprise a dispensing groove, an activation tank and a medicine outlet, the dispensing groove provides quantitative medicines for the activation tank, the medicines are activated in the activation tank, the activation tank is connected with the medicine outlet, and the medicine outlet supplies medicines for the reaction tank 15. The dispensing barrel A and the dispensing barrel B are both connected with the control device 8 in a communication mode and used for receiving dispensing instructions sent by the control device 8. When the A dispensing barrel adds the medicine to the reaction tank 15, the B dispensing barrel can dispense the medicine, and when the medicine of the A dispensing barrel is completely added with the medicine, the B dispensing barrel then adds the medicine to the reaction tank 15, so that the medicine can be continuously provided between the dispensing chamber 13. A separation device and a purified water discharge port 21 are arranged in the reaction tank 15, the separation device is used for separating concrete and liquid after reaction, a tail end inspection well 20 is arranged at the downstream of the purified water discharge port 21, and the tail end inspection well 20 discharges the liquid, namely the clean water, into a river channel through the discharge port. A sludge basin 18 is located downstream of the reaction basin 15 for recovering the concrete. And a third water level meter is arranged in the mud basin 18 and used for monitoring the water level of liquid mixed in the concrete, and the third water level meter adopts a vertical rod type ball float valve and/or an electronic liquid level meter. A sludge pump 19 is provided in the sedimentation tank 18 and discharges sludge to a downstream sludge collection device.
The control device 8 and the alarm device are arranged in the duty room 7, and the control device 8 is in communication connection with the first water level gauge, the flowmeter, the grating machine 10, the second water level gauge, the water pump 16 of the purification system and the dispensing room 13 and is used for controlling the operation of the dispensing barrel 14 in the grating machine 10, the water pump 16 and the dispensing room 13 according to the measurement results of the first water level gauge, the second water level gauge and the flowmeter. The control device 8 also comprises a display and/or a signal light which indicates the operating state of the processing system, for example: starting the grid machine 10, the dispensing room 13 for preparing the medicines, starting the water pump 16, starting the sludge pump 19 and the like.
The alarm device is in communication connection with the blockage rate monitoring device, the grid slag barrel 11 and the third water level meter, and prompts manual treatment when the mixed rainwater and sewage blockage exceeds a preset value, such as 40-60%, and the grid slag barrel 11 is filled with solid garbage or sludge in the sludge settling tank 18 exceeds a sludge removal water level.
Adopt the processing system of rain and sewage mixed flow, flowmeter 2 and rain graduated flask 3 last detection flow, control device 8 just sends the instruction for dispensing 13 and begins dispensing when the rain and sewage mixed flow has not yet arrived regulation pond 12 time, and adopt two dispensing barrels 14 to dispense in turn, when making the rain and sewage mixed flow arrive reaction tank 15 under the transport of water pump 16, the medicament of dispensing barrel 14 preparation reaches the best effect, can handle rain and sewage mixed flow fast, high-efficiently, reduce sewage treatment plant's load simultaneously.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. A system for treating mixed rainwater and sewage, which is characterized by comprising: the system comprises a rain measuring cylinder (3), a flowmeter (2), a storage regulation pool (12), a purification system and a control device (8); wherein,
a first water level meter is arranged in the rain gauge;
the flowmeter is arranged at the water inlet of the cutoff well (4);
the water inlet of the regulating and storing pool is connected with the water outlet of the intercepting well and receives the mixed rain and sewage flow overflowing from the intercepting well, and a second water level meter is arranged in the regulating and storing pool and connected with the purification system to convey the mixed rain and sewage flow to the purification system;
the purification system comprises a water pump (16), a dispensing room (13), a reaction tank (15), a sludge settling tank (18) and a sludge pump (19), the water pump conveys the rain and sewage mixed flow water in the regulation and storage tank to the reaction tank, the dispensing room supplies chemicals to the reaction tank, a purified water discharge port (21) is formed in the reaction tank, the sludge settling tank is positioned at the downstream of the reaction tank, and the sludge pump is arranged in the sludge settling tank and discharges sludge to a downstream sludge collection device;
and the control device (8) is in communication connection with the first water level gauge, the flowmeter, the second water level gauge, a water pump of the purification system and the dispensing room.
2. The system for treating mixed flow of rain and sewage as claimed in claim 1, wherein the regulating reservoir is provided with an overflow port (17), and the overflow port is not lower than the pump starting water level of the regulating reservoir.
3. The system for treating mixed rainwater and sewage according to claim 1, wherein the dispensing room comprises two dispensing barrels (14) which are a first dispensing barrel and a second dispensing barrel respectively, each of the first dispensing barrel and the second dispensing barrel comprises a dispensing groove, an activation tank and a dispensing port, the dispensing groove provides quantitative medicament for the activation tank, the activation tank is connected with the dispensing port, the dispensing port provides medicament for the reaction tank, and the first dispensing barrel and the second dispensing barrel are both connected with the control device in a communication manner.
4. A system for treating mixed flow of rain and sewage as claimed in claim 1 wherein the control means includes a display and/or a plurality of signal lights which indicate the operating status of the treatment system.
5. The mixed rainwater and sewage flow treatment system according to claim 1, wherein the first water level gauge and the second water level gauge each comprise a vertical rod type ball float valve and/or an electronic liquid level gauge.
6. The system for treating mixed rainwater and sewage as recited in claim 1, further comprising a grid room (9), wherein a water inlet of the grid room is connected with a water outlet of the intercepting well, a water outlet of the grid room is connected with a water inlet of the storage tank, a grating machine (10) is arranged in the grid room and is connected with the control device in a communication way, and a grating slag barrel (11) is arranged at one end of the grating machine, which is separated from the solid.
7. The system for treating mixed rainwater and sewage water as claimed in claim 6, further comprising an alarm device, wherein the alarm device is connected with the grid slag bucket in a communication mode.
8. The system for treating mixed rainwater and sewage as claimed in claim 7, wherein a blockage rate monitoring device is arranged in the grid spaces, and the blockage rate monitoring device is connected with the alarm device in a communication mode.
9. The system for treating mixed rainwater and sewage as claimed in claim 7, wherein a third water level meter is arranged in the sludge settling tank, and the third water level meter is connected with the alarm device in a communication manner.
10. The system for treating mixed rainwater and sewage according to claim 9, wherein the third water level meter comprises a vertical rod type ball float valve and/or an electronic liquid level meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021147219.1U CN212450981U (en) | 2020-06-19 | 2020-06-19 | Treatment system of rain and sewage mixed flow water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021147219.1U CN212450981U (en) | 2020-06-19 | 2020-06-19 | Treatment system of rain and sewage mixed flow water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982616A (en) * | 2021-02-24 | 2021-06-18 | 珠海市规划设计研究院 | Rain and sewage converging system |
| CN114855965A (en) * | 2022-05-28 | 2022-08-05 | 宁波仲江环保科技有限公司 | Digital pipe network and pump station management and control system |
-
2020
- 2020-06-19 CN CN202021147219.1U patent/CN212450981U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982616A (en) * | 2021-02-24 | 2021-06-18 | 珠海市规划设计研究院 | Rain and sewage converging system |
| CN114855965A (en) * | 2022-05-28 | 2022-08-05 | 宁波仲江环保科技有限公司 | Digital pipe network and pump station management and control system |
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