CN112250222A - Water age renewal station - Google Patents
Water age renewal station Download PDFInfo
- Publication number
- CN112250222A CN112250222A CN202011191476.XA CN202011191476A CN112250222A CN 112250222 A CN112250222 A CN 112250222A CN 202011191476 A CN202011191476 A CN 202011191476A CN 112250222 A CN112250222 A CN 112250222A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 297
- 238000000746 purification Methods 0.000 claims abstract description 24
- 239000008213 purified water Substances 0.000 claims abstract description 8
- 238000011282 treatment Methods 0.000 claims description 16
- 239000000645 desinfectant Substances 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 238000001471 micro-filtration Methods 0.000 claims description 4
- 238000001728 nano-filtration Methods 0.000 claims description 4
- 238000009287 sand filtration Methods 0.000 claims description 4
- 238000000108 ultra-filtration Methods 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000002203 pretreatment Methods 0.000 claims 2
- 238000011221 initial treatment Methods 0.000 claims 1
- 238000004659 sterilization and disinfection Methods 0.000 description 11
- 238000012544 monitoring process Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 238000011001 backwashing Methods 0.000 description 5
- 239000006227 byproduct Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- QDHHCQZDFGDHMP-UHFFFAOYSA-N Chloramine Chemical compound ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 239000005708 Sodium hypochlorite Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000013440 design planning Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/074—Arrangement of water treatment devices
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a water age updating station, which comprises a water collecting tank, a water purifying system and a water producing tank. The water collecting tank is communicated with the pipe network tip or the high-age low-flow-rate pipe section, and water in the pipe network tip or the high-age low-flow-rate pipe section flows into the water collecting tank; the water purification system is communicated with the water collecting tank, and water in the water collecting tank flows into the water purification system to be purified; the water producing pool is communicated with the water purifying system and is also communicated with the pipe network; the purified water flows into the water producing tank and then is conveyed into the pipe network. The water age updating station is arranged near the water supply network tip or the water age and flow rate high-risk pipe section which needs to be improved urgently, the water supply network tip or the water quality high-risk pipe section is pumped in a proper amount in the water consumption valley period, and the water age updating station purifies the water and re-enters the pipe network, so that the water age of the node is reset at the water age updating station, the water age of a subsequent water supply node is shortened, and the water quality of the pipe network is guaranteed.
Description
Technical Field
The invention relates to the technical field of municipal water supply, in particular to a water age updating station.
Background
With the development of national economy and the increase of the demand of people for good life, high-quality water supply or direct drinking water has become an inaudible water supply trend in the municipal water supply field. In four municipal water supply links of water sources, water plants, water delivery and water distribution, the water delivery of a pipe network is a weak link. The process of urbanization makes the continuous expansion of water supply network, but the pipe network faces risk such as high age, quality of water decline, chlorine residue are not enough simultaneously, especially at water supply network tip, has influenced the guarantee of water supply network quality of water. Wherein, the (node) age refers to the time of water from the water treatment plant node to each pipe network node, and the maximum age usually occurs at the end of the pipe network and the node with smaller water consumption.
At present, the method for optimizing the water quality of a water supply network generally comprises a link front end and a design planning stage, such as upgrading and reconstructing the process of a water plant, adopting excellent pipe networks and pipes, optimizing the design of the pipe networks and the like. At present, no specific engineering measures or solutions for the pipe network tip or the water quality high-risk pipe section are available in practice, and the control means for the water age, the biological risk and the chemical risk (such as disinfection byproducts) of the pipe network is insufficient.
Disclosure of Invention
The invention aims to overcome the defect that the control means for the water age, the biological risk and the chemical risk of a pipe network in the prior art is insufficient, and provides a water age updating station.
The invention solves the technical problems through the following technical scheme:
a water age renewal site, comprising:
the water collecting tank is communicated with the pipe network tip or the high-age low-flow-rate pipe section, and water in the pipe network tip or the high-age low-flow-rate pipe section flows into the water collecting tank;
the water purification system is communicated with the water collecting tank, and water in the water collecting tank flows into the water purification system to be purified;
the water producing tank is communicated with the water purifying system and is also communicated with the pipe network; the purified water flows into the water producing tank and then is conveyed into the pipe network.
In the scheme, the water age updating station is arranged near the water supply network tip or the water age and flow rate high-risk pipe section which needs to be improved urgently, the pipe network tip or the water quality high-risk pipe section is pumped in a proper amount in a water consumption valley period or at night, and the water enters the pipe network again after being purified by the water age updating station, so that the water age of the node is reset at the water age updating station, the water age of a subsequent water supply node is shortened, and the water quality of the pipe network is guaranteed. The technical means can be used for accelerating the water age updating of the weak point of water quality in the water supply network in a targeted manner, and the water supply network has the advantages of flexible layout, land conservation, high technical economy, high implementability, high intelligent degree and the like.
The water supply network tip or the high water age low flow rate pipe section of which the water age updating station is required to be arranged can be distinguished and selected according to the hydraulic model, the water quality model and the measured data.
The water purification capacity of the water age updating station can be calculated and reserved according to the range, the diameter and the length of the high-risk pipe sections, and the running time of the water age updating station can be calculated and reserved according to the duration of the municipal water valley period.
Preferably, the water purification system comprises a pretreatment unit and a main treatment unit which are communicated with each other, the pretreatment unit is communicated with the water collecting tank, and the main treatment unit is communicated with the water producing tank. The water in the water collecting tank flows into the water producing tank after being purified through two-stage treatment, so that the water age is reset in the water producing tank, and the water age of a subsequent water supply node is shortened.
Preferably, the pretreatment unit is a sand filtration unit, a microfiltration unit or an ultrafiltration unit.
Preferably, the main treatment unit is a nanofiltration unit.
Preferably, the main treatment unit is an activated carbon adsorption unit.
Preferably, the catch basin is provided with water quality testing device, can realize automatic sample and water quality monitoring function to realize the real-time supervision to quality of water. Furthermore, the monitoring of the disinfection by-products and the disinfection by-product precursors can be increased according to the requirements, and the chemical safety guarantee of the water quality is realized.
Preferably, the water producing pond is provided with a disinfectant supplementing device. When the disinfectant of the municipal water supply network is seriously lost (such as insufficient residual chlorine), the disinfectant is supplemented and added, so that the safety of microorganisms in the water body is guaranteed. The selected disinfection mode can adopt the disinfection modes of sodium hypochlorite, chloramine, ozone, ultraviolet and the like which are consistent with or different from the disinfection process of a water plant, and the microbial safety guarantee on water quality is realized. Further, the replenishment of the disinfectant should be accurately metered.
Preferably, the water age updating station further comprises a control system, an opening time period and a closing time period are configured in the control system, and the control system automatically controls the opening or the closing of the water age updating station according to the opening time period or the closing time period.
In the scheme, the starting time period is a water consumption valley time period, the closing time period is before the water quality purification and the water consumption peak time period are completed, the water consumption valley time period and the water consumption peak time period can be determined through specific statistics, and the calculation can also be carried out through establishing a model.
Preferably, a constant-pressure water supply pump is connected between the water production tank and the pipe network, so that the purified water is re-conveyed to the original pipe network or is conveyed nearby to a water consumption point with higher requirement on water quality.
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 invention.
The positive progress effects of the invention are as follows: according to the water age updating station, the water age updating station is arranged at the tail end of a water supply network or near a water quality high-risk pipe section which needs to be improved urgently in water age and flow speed, the tail end of the water supply network or the water quality high-risk pipe section is pumped in a proper amount in a water consumption valley period, and the water is purified by the water age updating station and then enters the pipe network again, so that the water age of a node is reset at the water age updating station, the water age of a subsequent water supply node is shortened, and the water quality of the pipe network is guaranteed. The water age updating station can have the composite functions of water quality purification, disinfectant supplement, water quality monitoring and the like. The technical means can be used for accelerating the water age updating of the weak point of water quality in the water supply network in a targeted manner, and the water supply network has the advantages of flexible layout, land conservation, high technical economy, high implementability, high intelligent degree and the like.
Drawings
Fig. 1 is a simplified schematic diagram of the specific locations of water age update stations according to a preferred embodiment of the present invention.
Fig. 2 is a flow chart of the operation of the water age updating station according to the preferred embodiment of the present invention.
Fig. 3 is a flow chart showing operation of the water purification system in the water age renewal station in fig. 2 after being embodied.
Fig. 4 is another operation flowchart after the water purification system in the water age renewal station in fig. 2 is embodied.
Description of reference numerals:
Water age renewal site 2
Collecting basin 21
Preprocessing unit 221
Water-producing tank 23
Constant pressure water supply pump 24
Water purification plant 3
Pipe network 4
Detailed Description
The present invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings, but the present invention is not limited thereto.
As shown in fig. 1 to 4, the present embodiment provides a water age renewal station 2, and the water age renewal station 2 includes a collecting tank 21, a water purification system 22, and a water producing tank 23. Wherein, the water collecting tank 21 is communicated with the pipe network end 1 or the high age low flow rate pipe section, and the water in the pipe network end 1 or the high age low flow rate pipe section flows into the water collecting tank 21; the water purification system 22 is communicated with the water collecting tank 21, and water in the water collecting tank 21 flows into the water purification system 22 to be purified; the water producing tank 23 is communicated with the water purifying system 22, and the water producing tank 23 is also communicated with the pipe network 4; the purified water flows into the water producing tank 23 and is then conveyed into the pipe network 4.
Wherein, the pipe network tip is the pipe network far away from the water treatment plant 3, and the high-age low-flow-rate pipe section is the high-risk pipe section of water quality with the municipal water supply from the water treatment plant node to each pipe network node for more than 24 hours and the flow rate of less than 0.2 m/s. It should be noted that the water supply network tip or the high water age low flow rate pipeline of the water age updating station 2 needs to be set for distinguishing and selecting according to the hydraulic model, the water quality model and the measured data. The pipe network water with substandard water quality is purified by arranging a water age updating station 2 on the pipe network tip or the high water age low-flow-rate pipe section, and then flows into the pipe network, so that the water age is updated. According to the water age updating station 2 provided by the embodiment, a proper amount of water is pumped from the pipe network tip 1 or the high water age low-flow-rate pipe section in the valley period or at night, and the water enters the pipe network 4 again after being purified by the water age updating station 2, so that the water age of the node is reset at the water age updating station 2, the water age of the subsequent water supply node is shortened, and the water quality of the pipe network 4 is guaranteed. The size and run time of the water age renewal station 2 can be calculated and reserved based on the range, diameter, length of the high water age low flow rate pipe sections and the duration of the municipal water use trough period.
The water purification system 22 comprises a pretreatment unit 221 and a main treatment unit 222 which are communicated with each other, wherein the pretreatment unit 221 is communicated with the water collecting tank 21, and the main treatment unit 222 is communicated with the water producing tank 23. The water in the water collecting tank 21 is purified through two-stage treatment and then flows into the water producing tank 23, so that the water age is cleared in the water producing tank 23, and the water age of a subsequent water supply node is shortened. The pretreatment unit 221 is a sand filtration, microfiltration, or ultrafiltration unit. The main treatment unit 222 is a nanofiltration unit. Of course, the main processing unit 222 may also select other processes such as an activated carbon adsorption unit to improve the applicability of the water age renewal station 2.
The water collecting tank 21 is provided with a water quality detection device, and can realize automatic sampling and water quality monitoring functions so as to realize real-time monitoring of water quality. The water quality monitoring indexes can include indexes such as temperature, residual chlorine, turbidity, particulate matters and the like, and the selected commercially available monitoring equipment can realize unmanned on-line monitoring. In addition, the monitoring of the disinfection by-products and the disinfection by-product precursors can be increased according to the requirements, and the chemical safety guarantee of the water quality is realized.
The disinfectant can be supplemented to the water producing pool 23 according to the requirement, so that a disinfectant supplementing device is arranged on the water producing pool 23. When the disinfectant of the municipal water supply network is excessively consumed (if the residual chlorine is insufficient), the disinfectant is supplemented and added, so that the biological safety of the water body is guaranteed. The selected disinfection mode can adopt the disinfection modes of sodium hypochlorite, chloramine, ozone, ultraviolet and the like which are consistent with or different from the disinfection process of a water plant, and the microbial safety guarantee on water quality is realized. Further, the replenishment of the disinfectant should be accurately metered.
In this embodiment, the water age updating station 2 further includes a control system, an on-time period and an off-time period are configured in the control system, and the control system automatically controls the on-time or the off-time of the water age updating station 2 according to the on-time period or the off-time period. The starting time period is a water consumption valley time period, the closing time period is before the water quality purification and the water consumption peak time period are completed, the water consumption valley time period and the water consumption peak time period can be determined through specific statistics, and the calculation can also be carried out through establishing a model. For example, the time period from zero point to five points in the morning is a water consumption valley time period, the control system automatically starts and operates the water age updating station 2 in the time period, and the water age updating station 2 updates the water age of the pipe network tip or the high water age low flow rate pipe section; after five am, the control system automatically closes the age update station 2.
The water age updating station 2 further comprises a backwashing system, one end of the backwashing system is communicated with the water producing pool 23, and the other end of the backwashing system is communicated with the water purifying system 22. And the backwashing system is used for backwashing the water purification system so as to enable the water purification unit to always keep the water purification capacity. A constant pressure water supply pump 24 is connected between the water producing tank 23 and the pipe network 4 to re-deliver the purified water to the pipe network 4 or to a water consumption point having a higher requirement for water quality.
In the water age renewal station 2 provided by the embodiment, a proper amount of water is pumped to the pipe network tip or the water quality high-risk pipe section 1 in the water use valley period, and the pumped water enters the water collecting tank 21 for regulation and storage. Sand filtration, microfiltration or ultrafiltration units are used as pretreatment, and nanofiltration units or active carbon are used as main treatment processes. The purified water then enters the water producing tank 23, and the purified water is made to reenter the pipe network 4 by adopting a water supply pump, so that the updating of the water age and the guarantee of the water quality are realized. The intelligent degree of the water age updating station 2 can realize remote operation, monitoring and unattended operation. The water purification capacity of the water age update station 2 can be calculated and reserved according to the range, diameter and length of the high-risk pipe sections, and the running time of the water age update station 2 can be calculated and reserved according to the duration of the municipal water valley period. The technical means can be used for pointedly accelerating the water age updating of the water quality weak points (such as the pipe network tips or the water quality high-risk pipe sections 1) of the water supply pipe network, and has the advantages of flexible layout, land conservation, high technical economy, high implementability, high intelligent degree and the like.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (9)
1. A water age renewal site, comprising:
the water collecting tank is communicated with the pipe network tip or the high-age low-flow-rate pipe section, and water in the pipe network tip or the high-age low-flow-rate pipe section flows into the water collecting tank;
the water purification system is communicated with the water collecting tank, and water in the water collecting tank flows into the water purification system to be purified;
the water producing tank is communicated with the water purifying system and is also communicated with a pipe network; the purified water flows into the water producing tank and then is conveyed into the pipe network.
2. The water age renewal station of claim 1, wherein the water purification system comprises a pre-treatment unit and a main treatment unit in communication with each other, the pre-treatment unit being in communication with the water collection basin, the main treatment unit being in communication with the water production basin.
3. The water age renewal station of claim 2, wherein the pretreatment unit is a sand filtration, microfiltration, or ultrafiltration unit.
4. The water age renewal station of claim 3, wherein the primary treatment unit is a nanofiltration unit.
5. The water age renewal station of claim 3, wherein the main treatment unit is an activated carbon adsorption unit.
6. The water age renewal station according to any of claims 1-5, wherein the catch basin is provided with water quality detection means.
7. The water age renewal station of any one of claims 1-5, wherein the product water basin is provided with disinfectant replenishment means.
8. The water age updating station as claimed in any one of claims 1 to 5, further comprising a control system, wherein an on period and an off period are configured in the control system, and the control system automatically controls the on or off of the water age updating station according to the on period or the off period, respectively.
9. The water age renewal station according to any one of claims 1 to 5, wherein a constant pressure water supply pump is connected between the water producing tank and the pipe network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011191476.XA CN112250222A (en) | 2020-10-30 | 2020-10-30 | Water age renewal station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011191476.XA CN112250222A (en) | 2020-10-30 | 2020-10-30 | Water age renewal station |
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| Publication Number | Publication Date |
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| CN112250222A true CN112250222A (en) | 2021-01-22 |
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| CN202011191476.XA Pending CN112250222A (en) | 2020-10-30 | 2020-10-30 | Water age renewal station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112949221A (en) * | 2021-03-04 | 2021-06-11 | 熊猫智慧水务有限公司 | Faucet water age analysis method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112949221A (en) * | 2021-03-04 | 2021-06-11 | 熊猫智慧水务有限公司 | Faucet water age analysis method |
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