CN104846934A - Intelligent emergency water supply system - Google Patents
Intelligent emergency water supply system Download PDFInfo
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- CN104846934A CN104846934A CN201510257071.4A CN201510257071A CN104846934A CN 104846934 A CN104846934 A CN 104846934A CN 201510257071 A CN201510257071 A CN 201510257071A CN 104846934 A CN104846934 A CN 104846934A
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- water
- water supply
- control module
- district
- variable frequency
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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
- E03B1/00—Methods or layout of installations for water supply
- E03B1/02—Methods or layout of installations for water supply for public or like main supply for industrial use
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B11/00—Arrangements or adaptations of tanks for water supply
- E03B11/10—Arrangements or adaptations of tanks for water supply for public or like main water supply
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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
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons, valves, in the pipe systems
- E03B7/078—Combined units with different devices; Arrangement of different devices with respect to each other
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Abstract
The invention relates to an intelligent emergency water supply system which comprises pressure sensors, a frequency conversion control module and a user terminal. The pressure sensors are arranged on the lateral wall of a main water supply pipe of a municipal administration water supply pipeline to monitor pressure information of the main water supply pipe in real time and transmit the pressure information to the frequency conversion control module. The frequency conversion control module judges water amount in the main water supply pipe according to the received pressure information. When the water amount is smaller than a preset value, the frequency conversion control module transmits warning information to the user terminal. The user terminal receives the warning information transmitted by the frequency control module and conducts corresponding treatment. The intelligent emergency water supply system ensures emergency water supply for the user in 6-60 minutes after accidental water supply cutting off and informs each user to make preparation and conducts temporary emergency water storage to further ensure humanized water supply. When water quality changes suddenly, the system can inform the user timely.
Description
Technical field
The present invention relates to a kind of intelligent emergent water system.
Background technology
The water supply pattern of the municipal direct-furnish (general 1-5 floor) in high district (second pressure water supply) and low district is generally divided in the secondary water-supply of present urban skyscraper.Several drawback is had under existing water supply pattern:
1, in pump house, switch board and main supply equipment are all at basement pump house, and property janitor's room personnel need to make an inspection tour to pump house just can know machine operation every day, occur abnormal can not knowing in time and delay emergency repair time when equipment.
2, when water meet accident municipal administration cut off the water suddenly time, low district user is just anhydrous available at once.Secondary water-supply as without negative pressure equipment supply water, high district water is also cut off the water supply immediately, is cutting off the water suddenly under state, can bring great inconvenience to user.
3, when municipal tap water is normal, user does not know the water quality condition of tap water all the time yet.The also ignorant situation when there is secondary pollution.As pipeline rupture suddenly repairing connect after, user does not know the situation of water pollution yet.
Summary of the invention
Technical problem to be solved by this invention is to provide one and monitors water quality in real time, occur cut off the water suddenly or water quality anomaly time, instant alarming notifies resident, and provides the intelligent emergent water system of Emergency water supply in short-term.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of intelligent emergent water system, comprises pressure sensor, variable frequency control module and user terminal;
Described pressure sensor is arranged on the main-supply sidewall of municipal water supply pipeline, the pressure information of Real-Time Monitoring main-supply, and pressure information is sent to variable frequency control module;
Described variable frequency control module is according to the pressure information received, and judge that the water yield in main-supply is how many, when occurring that the water yield is less than preset value, send a warning message user terminal;
Described user terminal receives the warning information that variable frequency control module sends, and makes respective handling.
The invention has the beneficial effects as follows: the present invention ensures user's emergency water in 6-60 minute after unexpected cutting off the water, and when municipal administration is surprisingly cut off the water, the very first time notifies that every user allows user carry out interim emergent water storage and prepares, and ensures that hommization is supplied water; When there is suddenly change of water quality, can realize notifying user in time; Property janitor's room personnel need not arrive the operating condition that basement just can view equipment and water quality in time in person, reduce the labour intensity of janitor's room personnel and the operation problem of energy Timeliness coverage water quality and equipment.
On the basis of technique scheme, the present invention can also do following improvement.
Further, also comprise server, warning information is sent to user terminal by server by described variable frequency control module.
Further, also comprise the water supply tank for storage of water, described main-supply is divided into two-way height district's water pipe and low district water pipe respectively to high district's water supply terminal and low district's water supply terminal water supplying, described high district water pipe by water supply tank to high district's water supply terminal water supplying;
Described water supply tank is connected with low district's water supply terminal by water pipe.
Further, described water supply tank is provided with motor operated valve and reducing valve by the water pipe between water pipe and low district's water supply terminal.
Further, when described variable frequency control module judges that the water yield in main-supply is less than preset value, while sending a warning message, send control signal and control motor operated valve and reducing valve and make water supply tank to low district's water supply terminal water supplying.
Further, the water sidewall between described water supply tank and high district's water supply terminal is provided with remote transmission sensor, and described remote transmission sensor is used for the current flowed out from water supply tank to monitor, and pressure data is sent to variable frequency control module.
Further, formula float valve is energetically provided with in described water supply tank.
Further, property monitoring water quality module and CSRC module is also comprised;
Described property monitoring water quality module installation is between variable frequency control module and server, property janitor's room personnel need not arrive the operating condition that basement just can view equipment and water quality in time in person, reduce the labour intensity of janitor's room personnel and the operation problem of energy Timeliness coverage water quality and equipment;
Described CSRC module is used for the information that reception server sends, and carries out central authorities' regulation and control.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of intelligent emergent water system described in the embodiment of the present invention 1;
Fig. 2 is the structural representation of a kind of intelligent emergent water system described in the embodiment of the present invention 2.
In accompanying drawing, the list of parts representated by each label is as follows:
1, pressure sensor, 2, variable frequency control module, 3, user terminal, 4, server, 5, water supply tank, 6, motor operated valve, 7, reducing valve, 8, remote transmission sensor, 9, property monitoring water quality module, 10, CSRC module, 11, energetically formula float valve.
Detailed description of the invention
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, be a kind of intelligent emergent water system described in the embodiment of the present invention 1, comprise pressure sensor 1, variable frequency control module 2 and user terminal 3;
Described pressure sensor 1 is arranged on the main-supply sidewall of municipal water supply pipeline, the pressure information of Real-Time Monitoring main-supply, and pressure information is sent to variable frequency control module 2;
Described variable frequency control module 2 is according to the pressure information received, and judge that the water yield in main-supply is how many, when occurring that the water yield is less than preset value, send a warning message user terminal 3;
Described user terminal 3 receives the warning information that variable frequency control module 2 sends, and makes respective handling.
Also comprise server 4, warning information is sent to user terminal 3 by server 4 by described variable frequency control module 3.
Also comprise the water supply tank 5 for storage of water, described main-supply is divided into two-way height district's water pipe and low district water pipe respectively to high district's water supply terminal and low district's water supply terminal water supplying, described high district water pipe by water supply tank 5 to high district's water supply terminal water supplying;
Described water supply tank 5 is connected with low district's water supply terminal by water pipe.
Described water supply tank 5 is provided with motor operated valve 6 and reducing valve 7 by the water pipe between water pipe and low district's water supply terminal.
When described variable frequency control module 2 judges that the water yield in main-supply is less than preset value, while sending a warning message, send control signal and control motor operated valve 6 and reducing valve 7 and make water supply tank to low district's water supply terminal water supplying.
Water sidewall between described water supply tank 5 and high district's water supply terminal is provided with remote transmission sensor 8, and pressure data for being monitored by the current flowed out from water supply tank, and is sent to variable frequency control module 2 by described remote transmission sensor 8.
Formula float valve 11 is energetically provided with in described water supply tank 5.
Also comprise property monitoring water quality module 9 and CSRC module 10;
Described property monitoring water quality module 9 is arranged between variable frequency control module 2 and server 4, property janitor's room personnel need not arrive the operating condition that basement just can view equipment and water quality in time in person, reduce the labour intensity of janitor's room personnel and the operation problem of energy Timeliness coverage water quality and equipment;
The information that described CSRC module 10 sends for reception server 4, carries out central authorities' regulation and control.
As shown in Figure 2, be a kind of intelligent emergent water system described in the embodiment of the present invention 2, embodiment 2 and embodiment 1 different value go out and are replacing wire signal transmission means with employing transmission of wireless signals mode.
Above embodiment 1 and the intelligent emergent water system described in embodiment 2 are as follows when embody rule:
Pressure information in the main-supply detected is sent in variable frequency control module 2 by pressure sensor 1;
Whether the water yield that variable frequency control module 2 judges in main-supply according to the pressure information received is normal, and if the water yield is lower than preset value, then judge to be about to cut off the water supply, send a warning message to user terminal 3, prompting user carries out water storage;
Variable frequency control module 2 controls motor operated valve 6 and reducing valve 7 simultaneously, makes the low district user of the current direction in water supply tank use water terminal, ensure that the demand of the short time water of low district user.
The present invention solves the following problem of secondary water-supply:
1, be transferred to property janitor's room large screen display by pump house to extraction holding wire (or wireless transmission) and the online hydraulic pressure of municipal water and supply equipment running status can be shown, property janitor's room personnel need not arrive the operating condition that basement just can view equipment in time in person, reduce the labour intensity of janitor's room personnel and the operation problem of energy Timeliness coverage equipment.
2., when municipal administration is surprisingly cut off the water, by WIFI terminal, the very first time notifies that every user allows user carry out interim emergent water storage and prepares, ensure that hommization is supplied water.
When a. adopting secondary water-supply equipment without negative pressure water distribution system flushing, Beijing Running-water Company requires that single complete equipment flow is less than 32m
3/ h.My corporate device is adopting the pot with no negative pressure without adapted diameter 1000*2100 in negative pressure equipment range of flow, when municipal administration is cut off the water suddenly, pot with no negative pressure is automatically converted into interim replenishing water tank of water and becomes water tank type variable frequency water supply, the water of 1.6 tons is had in diameter 1000*2100, user's emergency water in 6-60 minute after unexpected cutting off the water can be ensured, concrete Emergency water supply cardinal principle:
This equipment adds bypass pipe by the outlet of water supply pump water side, high district and adds motor operated valve, reducing valve 15, flap valve 16 to low district feed pipe, when normal water supply Shi Di district's direct-furnish part, it is normal and pass to pump house janitor's room that pressure sensor 2 shows pressure, water is through supplying 1-4 layer without the flap valve 16 after negative pressure vacuum tank, and high district escape hatch motor operated valve 15 is in closed condition.When municipal administration is surprisingly cut off the water, pressure sensor display transmission alarm signal to janitor's room, and sends alarm signal on owner's personal mobile phone or landline telephone by high in the clouds PC server, and prompting municipal administration is cut off the water and water storage of meeting an urgent need.High district water pump still normally runs simultaneously, and motor operated valve is opened, and in tank, emergency stock water is emergent for low district after decompression.When after unexpected time delay of cutting off the water, when emergent water does not have, water pump is out of service, and the water of the top section of tubing in high district can supplement low layer water.
B. when second pressure water supply amount is more than 32m
3during/h, employing laminates box supply equipment, equally also ensures the water requirements that municipal administration is cut off the water suddenly Shi Di district user 6-60 minute, and (principle is same a) to notify resident family to carry out the preparation of emergent water storage in time.
C. when secondary pressurized adopts box frequency-changing water supply device, equally also ensure the water requirements that municipal administration is cut off the water suddenly Shi Di district user 6-60 minute, and (principle is same a) to notify resident family to carry out the preparation of emergent water storage in time.
Municipal tap water is total water meter after entering valve, Ru Di district, a road pipeline, and tap water direct is for low district user.One tunnel enters high district and supplies water, enter after the pipeline supplied water in high district divides again two-way one road inlet water tank and enter user through frequency conversion forced feed height district outfall sewer, one tunnel supplies high district outfall sewer and enters user after directly entering pot with no negative pressure, non-negative pressure method of water supply pattern and case variable mode exchange-column shift use, when unexpected cutting off the water, water supply pattern originally, low district user anhydrous use at once, high district user is because there being cistern water supply pattern, water storage can also maintain a period of time water supply, but be finished and just cut off the water, who does not know situation.
When municipal administration occurring and surprisingly cutting off the water, generally, municipal tap water breakdown gang can rush to repair at short notice, resumes water supply.The technology of the application is a bit, first after water meter, running water pressure force snesor sends signal, by the central monitoring center Signal reception of property or enterprise, monitoring water quality instrument monitors municipal water water quality and the water quality condition after the close filter plant of crystal simultaneously, property janitor's room large screen display is transferred to by pump house, and signal by modes such as mobile phone A PP, be sent on the mobile phone of each household resident, once cut off the water, or water quality is abnormal, notify resident and alarm, and a small amount of water storage, to tackle cutting off the water or change of water quality of short time.
The technology 2 of the application is, when municipal water is surprisingly cut off the water, variable frequency pump outfall sewer Shang Xiangdi district user water supply line electrically operated valve is opened automatically, water outlet is supplied water to low district user after reducing valve decompression, Shi Di district user and Gao district user receive telephone automatic alarm of cutting off the water within the short time of cutting off the water, and have the time of emergent water storage.Recover normally in municipal water, motor operated valve cuts out automatically, still forms the municipal administration direct-furnish of low district, the situation of high district second pressure water supply.
Box frequency-changing water supply device hommization time delay feedwater and information transmission technology principle illustrate:
Patented technology water supply pattern: after municipal tap water enters total water meter valve, first have pressure sensor detection municipal administration to carry out water pressure and then add flap valve Hou Rudi district pipeline in a road, tap water direct is for low district user.One tunnel enters after water tank through frequency conversion forced feed height district user, when unexpected cutting off the water, first after water meter, running water pressure force snesor sends signal, be transferred to and control cabinet processed, and be transferred to property janitor's room display by pump house, and handle is cut off the water, signal is sent on user mobile phone APP 21 or on landline telephone by PC server and reports to the police, also be sent on the central monitoring center of enterprise, timely alert notice resident, and a small amount of water storage, to tackle cutting off the water of short time.Simultaneously, variable frequency pump outfall sewer Shang Xiangdi district water supply line electrically operated valve is opened automatically, water outlet is supplied water to low district user after reducing valve, allows low district user and Gao district user all receive telephone automatic alarm of cutting off the water within the short time of cutting off the water, has the time of emergent water storage.When after unexpected time delay of cutting off the water, when emergent water does not have, water pump is out of service, and the water of the top section of tubing in high district can supplement low layer water.Recover normally in municipal water, have pressure sensor to detect municipal administration and carry out water pressure, motor operated valve cuts out automatically, still forms the municipal administration direct-furnish of low district, the situation of high district second pressure water supply.
Intelligence drinking-water box (laminating) integral system equipment principle illustrates:
Municipal tap water enters total water meter late gate, and first have pressure sensor detection municipal administration to carry out water pressure and then add flap valve Hou Rudi district pipeline in a road, tap water direct is for low district user.One Ru Di district, road pipeline, tap water direct is for low district user.One tunnel enters high district and supplies water, enter the pipeline supplied water in high district and divide again water outlet after ultraviolet ray disinfector and flap valve after the inlet water tank of two-way one road, through pump variable frequency forced feed height district, outfall sewer enters user, one tunnel is after motor operated valve, directly enter pot with no negative pressure, then supply high district outfall sewer and enter user, non-negative pressure method of water supply pattern and water tank variable mode exchange-column shift use, when unexpected cutting off the water, first after water meter, running water pressure force snesor sends signal, be transferred to and control cabinet processed, and be transferred to property janitor's room display by pump house, and handle is cut off the water, signal is sent on user mobile phone APP or on landline telephone by PC server and reports to the police, also be sent on the central monitoring center of enterprise, timely alert notice resident, and a small amount of water storage, to tackle cutting off the water of short time.Simultaneously, water supply pattern is water tank variable mode, variable frequency pump outfall sewer Shang Xiangdi district water supply line electrically operated valve is opened automatically, water outlet is supplied water to low district user after reducing valve, allow low district user and Gao district user all receive telephone automatic alarm of cutting off the water within the short time of cutting off the water, have the time of emergent water storage.When after unexpected time delay of cutting off the water, when emergent water does not have, water pump is out of service, and the water of the top section of tubing in high district can supplement low layer water.Recover normally in municipal water, have pressure sensor 4 to detect municipal administration and carry out water pressure, motor operated valve cuts out automatically, and still form the municipal administration direct-furnish of low district, high district secondary pressurized non-negative pressure method of water supply and water tank frequency conversion switch the pattern supplied water.
(laminating) non-negative pressure water-supply installation principle illustrates:
When adopting secondary water-supply equipment without negative pressure water distribution system flushing, Beijing Running-water Company requires that single complete equipment flow is less than 32m
3/ h.My corporate device is adopting the pot with no negative pressure without adapted diameter 1000*2100 in negative pressure equipment range of flow, when municipal administration is cut off the water suddenly, pot with no negative pressure is automatically converted into interim replenishing water tank of water and becomes water tank type variable frequency water supply, the water of 1.6 tons is had in diameter 1000*2100, user's emergency water in 10-60 minute after unexpected cutting off the water can be ensured
Patented technology water supply pattern: after municipal tap water enters total water meter valve, first have pressure sensor, detection municipal administration carrys out water pressure and then adds flap valve Hou Rudi district pipeline in a road, and tap water direct is for low district user.One tunnel enters after voltage stabilizing compensator through frequency conversion forced feed height district user, when unexpected cutting off the water, first pressure sensor sends signal, be transferred to and control cabinet processed, and be transferred to property janitor's room display by pump house, and handle is cut off the water, signal is sent on user mobile phone APP or on landline telephone by PC server and reports to the police, also be sent on the central monitoring center of enterprise, timely alert notice resident, and a small amount of water storage, to tackle cutting off the water of short time.Simultaneously, variable frequency pump outfall sewer Shang Xiangdi district water supply line electrically operated valve is opened automatically, water outlet is supplied water to low district user after reducing valve, allows low district user and Gao district user all receive within the short time of cutting off the water to cut off the water telephone automatic alarm notice, has the time of emergent water storage.Allow user carry out interim emergent water storage prepare, ensure that hommization is supplied water.Recover normally in municipal water, motor operated valve cuts out automatically, still forms the municipal administration direct-furnish of low district, the situation of high district second pressure water supply.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. an intelligent emergent water system, is characterized in that, comprises pressure sensor, variable frequency control module and user terminal;
Described pressure sensor is arranged on the main-supply sidewall of municipal water supply pipeline, the pressure information of Real-Time Monitoring main-supply, and pressure information is sent to variable frequency control module;
Described variable frequency control module is according to the pressure information received, and judge that the water yield in main-supply is how many, when occurring that the water yield is less than preset value, send a warning message user terminal;
Described user terminal receives the warning information that variable frequency control module sends, and makes respective handling.
2. a kind of intelligent emergent water system according to claim 1, is characterized in that, also comprise server, and warning information is sent to user terminal by server by described variable frequency control module.
3. a kind of intelligent emergent water system according to claim 1, it is characterized in that, also comprise the water supply tank for storage of water, described main-supply is divided into two-way height district's water pipe and low district water pipe respectively to high district's water supply terminal and low district's water supply terminal water supplying, described high district water pipe by water supply tank to high district's water supply terminal water supplying;
Described water supply tank is connected with low district's water supply terminal by water pipe.
4. a kind of intelligent emergent water system according to claim 1, is characterized in that, described water supply tank is provided with motor operated valve and reducing valve by the water pipe between water pipe and low district's water supply terminal.
5. a kind of intelligent emergent water system according to claim 4, it is characterized in that, when described variable frequency control module judges that the water yield in main-supply is less than preset value, while sending a warning message, send control signal and control motor operated valve and reducing valve and make water supply tank to low district's water supply terminal water supplying.
6. a kind of intelligent emergent water system according to claim 3, it is characterized in that, water sidewall between described water supply tank and high district's water supply terminal is provided with remote transmission sensor, described remote transmission sensor is used for the current flowed out from water supply tank to monitor, and pressure data is sent to variable frequency control module.
7. a kind of intelligent emergent water system according to claim 3, is characterized in that, is provided with formula float valve energetically in described water supply tank.
8. a kind of intelligent emergent water system according to any one of claim 1-7, is characterized in that, also comprises property monitoring water quality module and CSRC module;
Described property monitoring water quality module installation is between variable frequency control module and server, property janitor's room personnel need not arrive the operating condition that basement just can view equipment and water quality in time in person, reduce the labour intensity of janitor's room personnel and the operation problem of energy Timeliness coverage water quality and equipment;
Described CSRC module is used for the information that reception server sends, and carries out central authorities' regulation and control.
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| CN201510257071.4A CN104846934A (en) | 2015-05-19 | 2015-05-19 | Intelligent emergency water supply system |
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| CN201510257071.4A CN104846934A (en) | 2015-05-19 | 2015-05-19 | Intelligent emergency water supply system |
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Cited By (12)
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| CN105137889A (en) * | 2015-09-29 | 2015-12-09 | 成都易信达科技股份有限公司 | Control method for intelligent water meter with pre-stored water capacity |
| CN105137888A (en) * | 2015-09-29 | 2015-12-09 | 成都易信达科技股份有限公司 | Control method for controlling pre-stored water capacity of intelligent water meter |
| CN106677249A (en) * | 2017-02-24 | 2017-05-17 | 北京华金浩环保供水设备有限公司 | Urban intelligent water supplying system |
| CN107698079A (en) * | 2017-11-22 | 2018-02-16 | 江门市蒲葵智能机器有限公司 | A kind of filtration system of storage tank |
| CN107761827A (en) * | 2017-09-23 | 2018-03-06 | 深圳市赛亿科技开发有限公司 | A kind of intelligent water supply system and control method |
| CN108918799A (en) * | 2018-04-04 | 2018-11-30 | 青岛理工大学 | One kind is monitored at regular time and quantity for water flow velocity source of early warning |
| CN109235545A (en) * | 2018-10-15 | 2019-01-18 | 上海凯泉泵业（集团）有限公司 | A kind of outdoor type movable type wisdom pump house can be used for emergency repair water supply |
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| CN112031074A (en) * | 2020-09-01 | 2020-12-04 | 蒋介中 | Integrated outdoor intelligent stabilization network pressure-superposed water supply device |
| CN112444298A (en) * | 2020-11-09 | 2021-03-05 | 湖南常德牌水表制造有限公司 | Water meter dismounting alarm device |
| CN112482499A (en) * | 2020-12-04 | 2021-03-12 | 平顶山自来水二次供水有限公司 | Secondary water supply water pressure early warning governing system |
| CN112947278A (en) * | 2021-02-26 | 2021-06-11 | 南京伯罗奔尼能源管理有限公司 | Secondary water supply automatic control system |
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| CN105137888A (en) * | 2015-09-29 | 2015-12-09 | 成都易信达科技股份有限公司 | Control method for controlling pre-stored water capacity of intelligent water meter |
| CN105137889B (en) * | 2015-09-29 | 2018-02-09 | 成都易信达科技股份有限公司 | A kind of control method of the intellectual water meter for the moisture storage capacity that prestores |
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Application publication date: 20150819 |