CN113914420A - Drinking water terminal backwater system - Google Patents
Drinking water terminal backwater system Download PDFInfo
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- CN113914420A CN113914420A CN202111050168.XA CN202111050168A CN113914420A CN 113914420 A CN113914420 A CN 113914420A CN 202111050168 A CN202111050168 A CN 202111050168A CN 113914420 A CN113914420 A CN 113914420A
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- water
- branch pipeline
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- 239000003651 drinking water Substances 0.000 title claims abstract description 122
- 235000020188 drinking water Nutrition 0.000 title claims abstract description 122
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 113
- 238000010992 reflux Methods 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- 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
- E03B7/02—Public or like main pipe systems
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B5/00—Use of pumping plants or installations; Layouts thereof
-
- 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
- E03B7/078—Combined units with different devices; Arrangement of different devices with respect to each other
-
- 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
- E03B7/09—Component parts or accessories
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/14—Treatment of water in water supply networks, e.g. to prevent bacterial growth
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- 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)
- Domestic Plumbing Installations (AREA)
Abstract
The invention provides a drinking water terminal backwater system, which comprises a municipal administration main water pipeline, a drinking water supply dry pipeline, a drinking water backwater dry pipeline and a household water meter group; the drinking water supply dry pipeline and the drinking water return dry pipeline are communicated to form a drinking water circulating pipeline; the household water meter group is connected with the drinking water main pipeline through a drinking water supply branch pipeline, and also comprises a backwater access branch pipeline, a pressure relief mechanism and a pressure compensator; one end of the backwater access branch pipeline is connected with the backwater main pipeline of the drinking water, and the other end of the backwater access branch pipeline is connected with the household access branch pipeline of the household water meter group; the backwater access branch pipeline is also respectively connected with the drinking water supply branch pipeline and the pressure relief mechanism; the backwater access branch pipeline is provided with a terminal reflux pump; the pressure compensator is connected with the household access branch pipeline of the household water meter group. The drinking water terminal water return system carries out backflow treatment on the water flow accumulated in the drinking water supply branch pipeline from the user terminal home-entry access branch pipeline, and improves the quality of the drinking water.
Description
Technical Field
The invention particularly relates to a drinking water terminal backwater system.
Background
Along with the higher and higher requirements of people on the quality of drinking water, high-quality drinking water or direct drinking water supply systems appear in more and more living communities. At present, most of the traditional design methods of direct drinking water engineering and quality-divided water supply engineering in China adopt a water supply vertical pipe and main pipe circulation mode (see figure 1) according to the design methods of relevant national specifications such as building and community pipeline direct drinking water system technical regulation (CJJ/T110-2017), building pipeline direct drinking water engineering (national building standard design atlas set 07SS604) and the like, and the mode is characterized in that circulation is carried out only on stored water of the vertical pipe and the buried main pipe, only the water quality of the part of pipelines can be ensured to meet the national or local specification requirement, the retention time of direct drinking water or high-quality drinking water in a pipe network of a water supply and return system cannot exceed the regulation of twelve hours (part of local standard is eight hours), but the water meter group connected from the vertical pipe and the main pipe and the stored water of household branch pipes (namely the vertical pipe, the opening of the main pipe and the branch pipes in front of the partition walls of the household residence cannot be realized (or called as circulation), because the user cannot realize the circulation when the user does not use water and return the water The hydrostatic pressure at the joint of the main pipe and the branch pipe is equal, that is, the quality of the water stored in the branch pipe is probably not in accordance with the technical requirements of the relevant specifications on the water retention time, because we cannot guarantee that the user can use up the part of the water stored in the branch pipe within the specified water retention time range every day.
Based on this, it is necessary to provide a drinking water terminal return system, which can perform backflow treatment on the water flow accumulated in the drinking water supply branch pipe to the household access branch pipe, and has a short backflow period, thereby ensuring the quality of the drinking water.
Disclosure of Invention
The invention aims to provide a drinking water terminal backwater system, which solves the defect that in the prior art, the water quality is reduced because the water flow is easily accumulated from a drinking water supply branch pipe to a household access branch pipe in a direct drinking water supply system pipeline.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a drinking water terminal backwater system comprises a municipal administration main water pipeline, a drinking water supply dry pipeline, a drinking water backwater dry pipeline and a household water meter group; the drinking water supply dry pipeline is sequentially connected with a filtering system, a reservoir and a pressure water pump, and the drinking water return dry pipeline is provided with a main pipe reflux pump; the drinking water supply dry pipeline and the drinking water return dry pipeline are communicated to form a drinking water circulating pipeline; the household water meter group is connected with the drinking water main pipeline through a drinking water supply branch pipeline and is characterized by also comprising a backwater access branch pipeline, a pressure relief mechanism and a pressure compensator; one end of the backwater access branch pipeline is connected with the backwater main pipeline of the drinking water, and the other end of the backwater access branch pipeline is connected with the household access branch pipeline of the household water meter group; the backwater access branch pipeline is also respectively connected with the drinking water supply branch pipeline and the pressure relief mechanism; the backwater access branch pipeline is provided with a terminal reflux pump; and the pressure compensator is connected with the household access branch pipeline of the household water meter group.
In the invention, the drinking water return main pipeline is provided with an electric control valve, and the drinking water supply branch pipeline is provided with an electric control valve.
Furthermore, the drinking water return main pipeline is provided with a check valve, and the drinking water supply branch pipeline is provided with a check valve.
In the invention, the backwater access branch pipeline is provided with an electric control valve.
Furthermore, a check valve is arranged on the backwater access branch pipeline.
In the invention, the backwater access branch pipeline is connected with the drinking water supply branch pipeline through a first connecting pipeline, and the first connecting pipeline is provided with an electric control valve.
In the invention, the pressure relief mechanism is a pressure relief pipeline, one end of the pressure relief pipeline is connected with the backwater access branch pipeline, and the other end of the pressure relief pipeline is connected with the drinking water backwater main pipeline.
Further, an exhaust valve is installed on the pressure relief pipeline.
Furthermore, an electric control valve and a check valve are arranged on the pressure relief pipeline.
In some embodiments of the present invention, the pressure relief mechanism is a pressure storage tank, and the pressure storage tank is connected to the return water inlet branch pipe.
The drinking water terminal backwater system can be improved as follows, and the drinking water terminal backwater system further comprises a second connecting pipeline, wherein one end of the second connecting pipeline is connected with the pressure relief pipeline, and the other end of the second connecting pipeline is connected with the backwater access branch pipeline. Through setting up the second connecting tube as pressure release drainage pipe, can flow back the return water with the water in the pressure release pipeline and insert a pipeline, reentrant drinking water return water dry pipe says, realizes the return water treatment to the water in the pressure release pipeline.
Further, an electric control valve and a check valve are arranged on the second connecting pipeline.
In the invention, the pressure compensator comprises a first branch pipeline and a second branch pipeline; an electric control valve is arranged on the first branch pipeline, the first branch pipeline is communicated with the outside, and the end part of the second branch pipeline is connected with an exhaust valve. Through the arrangement, the first branch pipeline is used for pressure compensation, and the second branch pipeline is used for exhausting when the water returns to the normal state again after the water returning is completed.
In some embodiments of the invention, the end of the first branch pipe is arranged in an inverted U-shaped pipe. The end part adopts an inverted U-shaped pipe structure to ensure the sanitation of the air inlet.
In some embodiments of the invention, the end of the first branch conduit is connected to a micro air respirator.
The invention can be further improved, the water meter is arranged on the household access branch pipeline of the household water meter group, and the two ends of the water meter are provided with electric control valves. The electric control valves are arranged at the two ends of the water meter, and can be closed when the return water system of the drinking water terminal is opened, so that the return water treatment is ensured not to influence the actual water meter reading of a user.
The drinking water terminal backwater system can be further improved, and the drinking water terminal backwater system also comprises a central controller, wherein the central controller is respectively electrically connected with each electric control valve and is also electrically connected with the terminal reflux pump.
The invention has the following beneficial effects:
(1) according to the drinking water terminal water return system, the return water access branch pipeline, the pressure relief mechanism and the pressure compensator are arranged, so that the backflow treatment is performed on the water flow which is accumulated in the drinking water supply branch pipeline to the user terminal home access branch pipeline, the terminal water circulation is realized, and the quality of the drinking water is improved.
(2) The drinking water terminal backwater system adopts a timing backwater technology for the drinking water supply branch pipeline terminal, and the backwater treatment period is within six to eight hours and is far lower than the national technical standard that the water age of the drinking water is not more than twelve hours (eight hours in partial regions). And the water quality of the drinking water is higher by combining with the same-return type water return technology adopted by the vertical pipe and the main pipe.
Drawings
The invention is described in further detail below with reference to the figures and specific embodiments.
FIG. 1 is a schematic structural diagram of a direct drinking water supply system in the prior art;
FIG. 2 is a schematic structural diagram of a drinking water terminal water return system (on the same floor) according to the invention;
FIG. 3 is a schematic diagram of a single-layer structure of a drinking water terminal backwater system according to the present invention;
the drawings are numbered as follows: 1. municipal main water piping; 2. a drinking water supply dry pipe; 3. a drinking water return dry pipe; 4. a drinking water supply branch conduit; 5. a household water meter group; 6. the return water is connected into a branch pipeline; 7. a pressure relief duct; 8. a pressure compensator; 9. a first connecting pipe; 10. a second connecting pipe; 11. the branch pipeline is accessed to the home; 12. a first branch conduit; 13. a second branch conduit; 14. a filtration system; 15. a reservoir; 16. a pressurized water pump; 17. a main pipe reflux pump; 18. a terminal reflux pump; 19. an electrically controlled valve; 20. a gate valve; 21. a check valve; 22. a water meter; 23. an exhaust valve; 24. a central controller.
Detailed Description
The drinking water terminal backwater system shown in fig. 1-3 comprises a municipal administration main water pipeline 1, a drinking water supply dry pipeline 2, a drinking water backwater dry pipeline 3, a drinking water supply branch pipeline 4, a backwater access branch pipeline 6, a household water meter group 5, a pressure relief pipeline 7 and a pressure compensator 8.
The drinking water supply dry pipeline 2 is sequentially connected with a filtering system 14, a reservoir 15 and a pressure water pump 16, and the drinking water return dry pipeline 3 is provided with a main pipe reflux pump 17, an electric control valve 19 and a check valve 21; the drinking water supply dry pipeline 2 and the drinking water return dry pipeline 3 are communicated to form a drinking water circulating pipeline. The household water meter group 5 is connected with the drinking water supply dry pipeline 2 through the drinking water supply branch pipeline 4, and the drinking water supply branch pipeline 4 is provided with an electric control valve 19 and a check valve 21. The household access branch pipeline 11 of the household water meter group 5 is connected with the pressure compensator 8, and the pressure compensator 8 comprises a first branch pipeline 12 and a second branch pipeline 13; an electric control valve 19 is arranged on the first branch pipeline 12, the first branch pipeline 12 is communicated with the outside, the end part of the first branch pipeline 12 is arranged in an inverted U-shaped pipe, and the end part of the second branch pipeline 13 is connected with an exhaust valve 23. The water meter 22 is arranged on the household access branch pipeline 11 of the household water meter group 5, and the two ends of the water meter 22 are provided with the electric control valves 19; the service access branch pipe 11 is also provided with a gate valve 20 and a check valve 21.
One end of the backwater access branch pipeline 6 is connected with the drinking water backwater dry pipeline 3, and the other end is connected with each household access branch pipeline 11 of the household water meter group 5; the return water inlet branch pipe 6 is provided with a terminal return pump 18, an electric control valve 19 and a check valve 21. The backwater access branch pipeline 6 is connected with the drinking water supply branch pipeline 4 through a first connecting pipeline 9, and an electric control valve 19 is arranged on the first connecting pipeline 9. The backwater access branch pipeline 6 is also connected with the pressure relief pipeline 7 through a second connecting pipeline 10, and an electric control valve 19 and a check valve 21 are arranged on the second connecting pipeline 10. One end of the pressure relief pipeline 7 is connected with the backwater access branch pipeline 6, and the other end is connected with the drinking water backwater dry pipeline 3. An exhaust valve 23 is arranged on the pressure relief pipeline 7, and an electric control valve 19 and a check valve 21 are further arranged on the pipeline.
The drinking water terminal water return system of the embodiment further comprises a central controller 24, and the central controller 24 is electrically connected with the return pump and each electronic control valve 19 respectively.
The working principle of the drinking water terminal backwater system is as follows:
firstly, the working time of the return water system of the drinking water terminal is set to be in the low valley period of water consumption, and the peak period of water consumption is avoided. When the terminal backwater time of a high-quality drinking water supply system or a direct drinking water supply system is reached, the whole drinking water terminal backwater system starts to work, wherein the 1#, 2#, 3#, 10# electric control valves adopt normally open type electric control valves, the 4#, 6#, 7#, 9#, 11# electric control valves adopt normally closed type electric control valves, and the 5# and 8# are backwater valves, and the specific process is as follows:
in the first step, when the terminal water return time is reached, the No. 10 electric control valve 19 on the roof is closed, and the No. 1, No. 2 and No. 3 electric control valves 19 are closed. At the moment, the drinking water backwater dry pipe 3 stops backwater in the same way, water is not supplied to the whole floor any more, and the closing of the electric control valves 19 in front of and behind the water meter 22 ensures that the stroke of the water meter 22 is not interfered in the whole backwater process;
and in the second step, the 7# electronic control valve 19 is opened for a plurality of seconds, namely, the pressure is released. Meanwhile, the district main pipe reflux pump 17 is started or continues to work, the water stored in the drinking water reflux dry pipeline 3 is pumped back to the reservoir 15 or enters the filtering system 14 again for filtering, and the drinking water reflux dry pipeline 3 is emptied at the moment (the time is calculated according to the length of the drinking water reflux dry pipeline 3 and the flow of the district reflux pump). In order to ensure that the pressure relief can be carried out smoothly but too much water cannot be discharged in advance, the height of the horizontal section of the backwater access branch pipeline 6 is not lower than that of the highest horizontal section of the elevation of each household access branch pipeline 11, otherwise, a communicating vessel cannot be formed effectively in the subsequent steps, and the operation of the terminal reflux pump 18 is influenced.
And thirdly, closing the 7# electric control valve 19, opening the 11# electric control valve 19, discharging the stored water in the pressure relief pipeline 7 to a backwater access branch pipeline 6 through a second connecting pipe by utilizing gravity, and then discharging the stored water into the drinking water backwater dry pipeline 3. The time is calculated according to the length of the pressure relief pipeline 7 in the whole process.
And fourthly, closing the 11# electronic control valve 19, opening the 4# and 9# electronic control valves 19 in the pressure compensator 8, and opening the terminal return pump 18 of the layer. Due to pressure relief, no water is ejected when the No. 4 electronic control valve 19 is opened; and as the No. 4 electric control valve 19 is opened, all the pressure compensators 8, the terminal return pump 18, the return water access branch pipeline 6 and the middle pipeline of the layer form a communicating vessel at the moment, and the terminal return pump 18 is at the lowest end, the water pump can continuously and effectively work at the moment, namely the water stored in the household access branch pipeline 11 is sent to the drinking water return water dry pipeline 3 through the return water access branch pipeline 6.
And step five, after pumping of the water stored in all the household access branch pipelines 11 of the same floor is finished (time is calculated according to the flow of the water pump and the length of the branch pipe with the least advantage), closing the terminal return pump 18 of the floor, closing the 4# and 9# electric control valves 19, and opening the 1# and 6# and 10# electric control valves 19. At this time, the high quality drinking water will reach each branch pipe through the 1# and 6# electronic control valves 19, but the 2# and 3# electronic control valves 19 are still closed, so the water meter 22 is not affected by the degree of the lines. Meanwhile, as the No. 10 electric control valve 19 is opened, the same-way water return function of the drinking water supply dry pipeline 2 is recovered.
Sixthly, when the branch pipe at the most unfavorable point is filled with water again (the time is calculated according to the pressure of the drinking water supply main pipeline 2 and the length of the branch pipe at the most unfavorable point), the pressure at two sides of the water meter 22 is basically balanced, the No. 6 electric control valve 19 is closed, and the No. 2 and No. 3 electric control valves 19 are opened to recover normal water supply.
The whole working process is about 2.5-4 minutes generally, water supply to a user is stopped in the working process, water return time is required to be set in the water use valley period although the time is short, and all water return working periods can be in the water use valley period through measures of increasing water return times and unevenly setting periods among water return.
The above-described embodiments of the present invention are not intended to limit the scope of the present invention, and the embodiments of the present invention are not limited thereto, and various other modifications, substitutions and alterations can be made to the above-described structure of the present invention without departing from the basic technical concept of the present invention as described above, according to the common technical knowledge and conventional means in the field of the present invention.
Claims (10)
1. A drinking water terminal backwater system comprises a municipal administration main water pipeline (1), a drinking water supply dry pipeline (2), a drinking water backwater dry pipeline (3) and a household water meter group (5); the drinking water supply dry pipeline (2) is sequentially connected with a filtering system (14), a water storage tank (15) and a pressure water pump (16), and the drinking water return dry pipeline (3) is provided with a main pipe reflux pump (17); the drinking water supply dry pipeline (2) is communicated with the drinking water return dry pipeline (3) to form a drinking water circulating pipeline; the household water meter group (5) is connected with the drinking water supply dry pipeline (2) through a drinking water supply branch pipeline (4), and is characterized by further comprising a backwater access branch pipeline (6), a pressure relief mechanism and a pressure compensator (8);
one end of the backwater access branch pipeline (6) is connected with the drinking water backwater dry pipeline (3), and the other end of the backwater access branch pipeline is connected with the household access branch pipeline (11) of the household water meter group (5); the backwater access branch pipeline (6) is also respectively connected with the drinking water supply branch pipeline (4) and the pressure relief mechanism; the backwater access branch pipeline (6) is provided with a terminal reflux pump (18); the pressure compensator (8) is connected with a branch pipeline (11) for connecting the water meters (5) of the individual households into the household.
2. The drinking water terminal backwater system according to claim 1, characterized in that the drinking water backwater main pipe (3) is provided with an electric control valve (19), and the drinking water supply branch pipe (4) is provided with an electric control valve (19); an electric control valve (19) is arranged on the backwater access branch pipeline (6).
3. The drinking water terminal backwater system according to claim 2, wherein the backwater access branch pipe (6) is connected with the drinking water supply branch pipe (4) through a first connecting pipe (9), and an electric control valve (19) is arranged on the first connecting pipe (9).
4. The drinking water terminal water return system according to claim 3, wherein the pressure relief mechanism is a pressure relief pipeline (7), one end of the pressure relief pipeline (7) is connected with the return water inlet branch pipeline (6), and the other end is connected with the drinking water return water dry pipeline (3).
5. The drinking water terminal water return system according to claim 4, wherein the pressure relief pipeline (7) is provided with an exhaust valve (23); an electric control valve (19) and a check valve (21) are arranged on the pressure relief pipeline (7).
6. The drinking water terminal water return system according to claim 5, further comprising a second connection pipeline (10), wherein one end of the second connection pipeline (10) is connected to the pressure relief pipeline (7), and the other end is connected to the return water inlet branch pipeline (6).
7. Drinking water terminal return system according to claim 6, characterized in that the second connecting duct (10) is provided with an electrically controlled valve (19) and a non-return valve (21).
8. Drinking water terminal return system according to any one of claims 1 to 7, characterized in that the pressure compensator (8) comprises a first branch conduit (12) and a second branch conduit (13); an electric control valve (19) is arranged on the first branch pipeline (12), the first branch pipeline (12) is communicated with the outside, and the end part of the second branch pipeline (13) is connected with an exhaust valve (23).
9. The drinking water terminal backwater system as claimed in claim 8, characterized in that a water meter (22) is arranged on the household access branch pipe (11) of the household water meter group (5), and two ends of the water meter (22) are provided with electric control valves (19).
10. The drinking water terminal return system of claim 9, further comprising a central controller (24), wherein the central controller (24) is electrically connected to each of the electrically controlled valves (19) and the terminal return pump (18), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111050168.XA CN113914420A (en) | 2021-09-08 | 2021-09-08 | Drinking water terminal backwater system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111050168.XA CN113914420A (en) | 2021-09-08 | 2021-09-08 | Drinking water terminal backwater system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113914420A true CN113914420A (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111050168.XA Withdrawn CN113914420A (en) | 2021-09-08 | 2021-09-08 | Drinking water terminal backwater system |
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| Country | Link |
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| CN (1) | CN113914420A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117783468A (en) * | 2024-01-10 | 2024-03-29 | 广东锋航建设有限公司 | Intelligent regional water quality management system |
-
2021
- 2021-09-08 CN CN202111050168.XA patent/CN113914420A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117783468A (en) * | 2024-01-10 | 2024-03-29 | 广东锋航建设有限公司 | Intelligent regional water quality management system |
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Application publication date: 20220111 |