CN107119752A - A kind of Intelligence Stanza Water System and water-saving method for house - Google Patents
A kind of Intelligence Stanza Water System and water-saving method for house Download PDFInfo
- Publication number
- CN107119752A CN107119752A CN201710039717.0A CN201710039717A CN107119752A CN 107119752 A CN107119752 A CN 107119752A CN 201710039717 A CN201710039717 A CN 201710039717A CN 107119752 A CN107119752 A CN 107119752A
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- water
- controller
- house
- hydraulic pressure
- pressure sensor
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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
- E03B7/07—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
-
- 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
- E03B7/003—Arrangement for testing of watertightness of water supply conduits
-
- 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
- E03B7/072—Arrangement of flowmeters
-
- 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
- E03B7/075—Arrangement of devices for control of pressure or flow rate
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention provides a kind of Intelligence Stanza Water System and water-saving method for house, by setting forefront pressure sensor and terminal pressure sensor in the corresponding position in front end or end for being connected with the water pipe of water appliance, with reference to controller, flowmeter and valve of registering one's residence, house inner water tube is monitored and controlled in real time uses water state.The water-saving system of the present invention is simple in construction, and water-saving method is easy, reliable.
Description
Technical field
The present invention relates to intelligent water-saving technology, more particularly, to a kind of Intelligence Stanza Water System for house and water saving
Method.
Background technology
All there is serious water shortage in the problem of worsening shortages of clean water resources have been increasingly severe, the multiple places of China
Phenomenon.In daily life, domestic water proportion shared in total water consumption is very big, how more effective using water wisely,
The focus discussed as society.
The big defect of current China house water supply system generally existing two：One be each floor pressure design it is unreasonable, use water
Utensil is in overpressure o utflow state, causes energy dissipation；Two be that residential water supply pipeline leakage loss is serious, causes water resource waste.
For now, although house water supply system employs some water saving measures, although a part of water-saving system
Water saving purpose is technically reached, the common people both can't see or can't hear, cause the common people to lack sense of participation to water saving, it is impossible to promote the people
Many consciousnesss of saving water；A part of water-saving system lacks pipeline leakage control function, once occurring pipeline leakage, may cause water resource
Serious waste and user's property loss；A part of water-saving system is absorbed in Treated sewage reusing, but shortage pipeline hydraulic pressure monitoring function,
Cause house pressure of supply water unreasonable, add unnecessary water supply consumption, cause energy dissipation.
The content of the invention
The present invention provide it is a kind of overcome above mentioned problem or solve the above problems at least in part can monitor use in real time
Water pipe line state, the Intelligence Stanza Water System and water-saving method for house for avoiding leakage loss, improving popular participation sense.
According to an aspect of the present invention there is provided a kind of Intelligence Stanza Water System for house, it includes：It is connected with and uses water
The water pipe of utensil branch road, is connected with the valve and for monitoring hydraulic pressure of registering one's residence in turn between the front end of the water pipe and the branch road
The terminal pressure for monitoring hydraulic pressure is connected between the end of forefront pressure sensor, the branch road and the water pipe to sense
Device, the valve of registering one's residence, forefront pressure sensor and terminal pressure sensor are connected to controller, and the controller is before
Valve of being registered one's residence described in the hydraulic pressure data control of side pressure force snesor and the collection of terminal pressure sensor is opened/stopped.
According to another aspect of the present invention there is provided a kind of intelligent water-saving method for house, it comprises the following steps：
S1, the data on flows based on flowmeter, start leakage monitoring pattern；
Under S2, leakage monitoring pattern, controller obtains forefront pressure sensor and the detection of terminal pressure sensor obtains water
The front end hydraulic pressure data and end hydraulic pressure data of pipe；
S3, the controller confirmation front end hydraulic pressure data and end hydraulic pressure data ratio are held in abnormal ranges
Row emergency processing is acted.
A kind of Intelligence Stanza Water System and water-saving method for house that the application is proposed, its advantage is mainly as follows：
(1), can be right in the corresponding setting forefront pressure sensor in front end and end and terminal pressure sensor of water pipe
Hydraulic pressure in water pipe is effectively monitored；
(2) water valve of registering one's residence, forefront pressure sensor, flowmeter and terminal pressure sensor on water pipe with controller phase
Even, it is easy to monitor the service position of water pipe in real time, and effectively controlled；
(3) application terminal that information exchange is realized with controller is set, the convenience monitored in real time is not only improved, meanwhile,
Popular participation sense can also be improved, strengthens consciousness of saving water；
(4) controller can automatically control opening/stopping for water valve of registering one's residence according to the judgement with water lines leakage loss situation, and
When deal with, effectively avoid water resource waste；
(5) it can timely be fed back to the leakage loss situation of water lines on mobile phone, remind user to handle in time.
Brief description of the drawings
Fig. 1 is a kind of structural representation of Intelligence Stanza Water System for house according to the embodiment of the present invention；
Fig. 2 is a kind of the visual of the controller of the structure of Intelligence Stanza Water System for house according to the embodiment of the present invention
The schematic diagram of panel.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
Shown in Figure 1, a kind of Intelligence Stanza Water System for house includes respectively using in the water pipe 1 of access house, house
Hydrophone tool 5 is linked on water pipe 1, and water branch road is used in formation.Front end is in one end using water pipe 1 into house, and relative one end is end
End.It is connected with register one's residence valve 2 and forefront pressure sensor 3, forefront pressure sensor in turn between the front end of water pipe 1 and branch road
3 are used for the hydraulic pressure of the monitoring arrival end of water pipe 1 in real time.Terminal pressure sensor 7 is connected between the end of water pipe 1 and branch road,
Terminal pressure sensor 7 is used for the hydraulic pressure for monitoring terminal position in water pipe 1 in real time.Also, valve 2 of registering one's residence, forefront pressure are sensed
Device 3 and terminal pressure sensor 7 are connected to controller 6.
In the corresponding setting pressure sensor in the front end and end of water pipe 1, it is easy to supervise the Real-time Water pressure in water pipe
Survey.Controller 6 monitors the obtained arrival end of water pipe 1 and terminal position according to forefront pressure sensor 3 and terminal pressure sensor 7
The data of hydraulic pressure, perform corresponding action, and the state of water is conveyed in the water pipe 1 to control to access premises.Before only by water pipe 1
The hydraulic pressure data of end and end control the water delivery state of water pipe 1, simple in construction, and control mode is easy.
Controller 6 uses programmable logic controller (PLC), also, controller 6 has Bluetooth function.In addition, controller 6 also has
There is visual panel, for controlling mode of operation manually or consulting Monitoring Data.When occur abnormal conditions, it is long-term go out or exclude it is former
After barrier, instruction can be directly inputted by the visual panel of controller 6, switches different working modes, to change the water supply of water pipe 1
State.
Programmable logic controller (PLC) has the controller that easy to use, function is strong and cost performance is high, can effectively ensure that intelligence
The reliability that can be controlled, also, it is with low cost.In addition, controller 6 also has Bluetooth function, enable controller 6 and other equipment
Information exchange is enough realized, has both been easy to controller 6 to monitor the transmission of situation in real time, other equipment or terminal is also allowed for directly to control
Device 6 sends instruction, the interaction of enhancement information and shared.
The flowmeter 4 for water measurement amount is additionally provided with water pipe 1, flowmeter 4 is arranged on forefront pressure sensor 3
Between branch road.Before the branch road of connection water appliance 5 is entered, flowmeter is set, to entering the place branch road of water appliance 5
Water consumption is accurately measured, according to the water usage data measured, and can either carry out the data analysis on basis, by being capable of base
Other actions are carried out in the data.
The system also includes the application terminal that information exchange is carried out with controller 6.In a specific embodiment, it should answer
It is mobile phone with terminal, and corresponding application program is set on mobile phone.Controller 6 according to the forefront pressure sensor 3 received,
The data message that terminal pressure sensor 7 and flowmeter 4 are conveyed, is compared after calculating, can obtain real-time water consumption, saving
Water, water rate, house water supply system hydraulic pressure.In addition, controller 6 is according to forefront pressure sensor 3 and terminal pressure sensor 7
Hydraulic pressure data, are capable of deciding whether occur abnormal conditions, and show repair company's contact details.Referring to described in Fig. 2, being visible surface
The example of the information data of the display of plate.
Wherein, the calculating for saving water refers to Code for design of building water supply and sewerage, and its calculation formula is as follows：
QSave=QIt is theoretical-QIt is actual=qmt-QIt is actual
QSave- the water saved, unit is L；
QIt is theoretical- theory water consumption, unit is L；
QIt is actual- actual used water amount is the of that month reading of flowmeter, and unit is L；
Q- ordinary residence water consumption quotas, unit is the L/ man days；
M- house numbers；
T- uses the water time, and unit is day.
The information that controller 6 is obtained according to calculating or judging, is sent to mobile phone, mobile phone is received after information by bluetooth,
The information can be shown by corresponding application program, to consult at any time.When there are abnormal conditions, pass through mobile phone application journey
Sequence is sent to controller 6 and instructed, and controller 6 is acted accordingly according to the instruction.
Make to realize information exchange, information interchange between controller 6 and application program of mobile phone by the Bluetooth function of controller 6
Mode is easy, directly perceived.Meanwhile, this information interchange mode is associated with the mobile phone that daily people can use at any time, can either
The effective promptness for embodying monitoring, can effectively lift the effect monitored in real time again, and enhancing is interesting, and enhancing is gone to water saving
Dynamic sense of participation, lifts common people's consciousness of saving water.
A kind of intelligent water-saving method for house, it comprises the following steps：
S1, the data on flows based on flowmeter 4, start leakage monitoring pattern；
Under S2, leakage monitoring pattern, controller 6 obtains forefront pressure sensor 3 and the detection of terminal pressure sensor 7 is obtained
The front end hydraulic pressure data and end hydraulic pressure data of water pipe 1；
S3, the controller 6 confirm the ratio of the front end hydraulic pressure data and end hydraulic pressure data in abnormal ranges, and hold
Row emergency processing is acted.
In actual application, flowmeter monitors and records the data on flows of water pipe 1 in real time under any state.When
During in normal life water, i.e., under normal mode, only the water by water pipe 1 is measured.System is only in particular case
Lower startup leakage monitoring pattern, the feed status to the reclaimed water of water pipe 1 is monitored, to avoid waste, the loss of water.
Start after leakage monitoring pattern, the front end hydraulic pressure data collected according to forefront pressure sensor 3 are pressed with end
The ratio range for the end hydraulic pressure data that force snesor 7 is collected, judges whether occur the exception of leak in water pipe 1 or branch road
Situation.When controller 6 judges the abnormal conditions of leak occur, corresponding action is performed in time, to avoid the waste at water source.It is logical
Cross the ratio of front end hydraulic pressure data and end hydraulic pressure data, you can judge whether there is leakage loss situation, judgement side in water pipe 1 or branch road
Formula is simple, perform simplicity.Meanwhile, by the judgement to leakage loss situation, react in time, it is to avoid the waste at water source.
What the front end hydraulic pressure data collected by forefront pressure sensor 3 were collected with terminal pressure sensor 7
The judgement of the ratio of end hydraulic pressure data, i.e., can judge the water pipe 1 or branch road of premises with the presence or absence of leakage loss situation.
The judgment mode is simple and easy to apply, and control is easy.
Under leakage monitoring pattern, still further comprise step S4, perform emergency processing action after or flowmeter 4 measure
Unchanged in flow twenty four hours, controller 6 switches into off-line mode.
Into after off-line mode, the water supply of premises is completely severed, and premises stops supplying water.When needing to supply water again
When, it can be operated directly on the visual panel of controller 6 or instruction is sent to controller 6 by application terminal, switched to normal
Service position.When the control mode makes premises water supply generation leakage loss or long-term useless water state, house can be fully ensured that
Interior water supply security, it is to avoid water waste causes any property loss.
During leakage monitoring pattern is started, the particular content of the data on flows based on flowmeter 4 in step S1 is：
The flow that flowmeter 4 is measured is unchanged in two hours.
When the data on flows measured in flowmeter 4 is constant for a long time, shows to be not present and use water state, now, restart
Abnormal conditions in water pipe 1 or branch road with the presence or absence of leakage loss are monitored, can more accurately reflect the shape of water pipe 1 or branch road
State, it is to avoid the influence of the data fluctuations produced by normal domestic water process.Meanwhile, under leakage monitoring pattern, due to control
The end that the front end hydraulic pressure data that device 6 processed is collected according to forefront pressure sensor 3 are collected with terminal pressure sensor 7
After the ratio in judgement abnormal conditions of hydraulic pressure data, corresponding action can be performed, harmful effect can be produced to normal domestic water.
Therefore, under given conditions, just start leakage monitoring pattern, effective leakage loss exception monitoring can either be implemented, avoid aligning again
Often life brings inconvenience.
In above-mentioned steps S3, abnormal ranges are more than 1.5 for the ratio of front end hydraulic pressure data and end hydraulic pressure data.Due to
In the absence of just commonly using water and during in the absence of leakage loss situation, forefront pressure sensor 3 and terminal pressure sensor 7 are adopted in water pipe 1
The hydraulic pressure data of the water pipe 1 collected are identical or close, i.e. its difference is smaller.When occurring leakage loss situation in water pipe 1 or branch road,
The end hydraulic pressure data that the front end hydraulic pressure data and terminal pressure sensor 7 that forefront pressure sensor 3 is collected are collected it
Between obvious difference occurs.
Therefore, the front end hydraulic pressure data collected and end hydraulic pressure data are compared judgement, can in time, accurately
The leakage loss situation for judging water pipe 1 or branch road.Deterministic process is in time, accurately, intuitively.
In above-mentioned steps S3, when controller 6 judges the ratio of front end hydraulic pressure data and end hydraulic pressure data in abnormal ranges
When interior, determine that water pipe 1 or branch road have the abnormal conditions of leakage loss, carry out emergency processing action.Its act particular content be：It is vertical
That is control valve 2 of registering one's residence is closed, to cut off the water supply of water pipe 1.
After the closing of valve 2 is registered one's residence in the control of controller 6, i.e., into off-line state.Into after off-line state, the water of premises
Do not supplied water in pipe or branch road, it is ensured that leakage loss will not occur for premises, it is to avoid water waste causes any property loss.
In above-mentioned steps S3, the content that controller 6 performs emergency processing action also includes：Controller 6 is by the front end water
The ratio of pressure data and end hydraulic pressure data sends to application terminal to remind user leakage loss feelings occur in the situation of abnormal ranges
Condition.When occurring the abnormal conditions of leakage loss in water pipe 1 or branch road, the control closing of controller 6 register one's residence valve 2 while, by the leakage loss
Abnormal conditions sent by bluetooth to mobile phone, the application program on mobile phone receives the information, reminds user to there is leakage loss situation,
It is easy to user to know abnormal conditions in time, it is timely to be handled.
A kind of Intelligence Stanza Water System for house of the present invention, the front end of water pipe 1 is with being connected water appliance 5 on water pipe 1
Branch road between be sequentially connected valve 2 of registering one's residence, forefront pressure sensor 3 and flowmeter 4, between the end of water pipe 1 and branch road
Connect terminal pressure sensor 7, also, valve 2 of registering one's residence, forefront pressure sensor 3 and flowmeter 4 and terminal pressure sensor 7
It is connected with controller 6, controller 6 realizes information exchange by bluetooth and loading with application terminal.
The data that controller 6 is gathered according to forefront pressure sensor 3, flowmeter 4 and terminal pressure sensor 7, control into
Family valve 2 is opened/stopped, to avoid the waste at water source.Meanwhile, by the information exchange with application terminal, realize to the state of water pipe 1
Real-time monitoring, lifting water saving sense of participation.
A kind of intelligent water-saving method for house of the present invention, after leakage monitoring pattern is started, by preceding side pressure
The ratio of the end hydraulic pressure data that the front end hydraulic pressure data and terminal pressure sensor 7 that force snesor 3 is collected are collected is sentenced
It is disconnected, confirm leakage loss situation present on water pipe 1 or branch road.When there is leakage loss situation, it can react in time, automatically, and
Remind user.
Finally, the present processes are only preferably embodiment, are not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc. should be included in the protection of the present invention
Within the scope of.
Claims (10)
1. a kind of Intelligence Stanza Water System for house, it is characterised in that it includes：It is connected with the water of water appliance (5) branch road
Manage (1), be connected with valve of registering one's residence (2) between the front end of the water pipe (1) and the branch road in turn and for monitoring before hydraulic pressure
The terminal pressure for monitoring hydraulic pressure is connected between the end of side pressure force snesor (3), the branch road and the water pipe (1) to pass
Sensor (7), the valve of registering one's residence (2), forefront pressure sensor (3) and terminal pressure sensor (7) are connected to controller
(6) the hydraulic pressure data control that, the controller (6) gathers according to the forefront pressure sensor (3) and terminal pressure sensor (7)
Valve (2) of being registered one's residence described in system is opened/stopped.
2. a kind of Intelligence Stanza Water System for house as claimed in claim 1, it is characterised in that：The controller (6) be with
The programmable logic controller (PLC) of Bluetooth function.
3. a kind of Intelligence Stanza Water System for house as claimed in claim 1, it is characterised in that：The forefront pressure sensor
(3) flowmeter (4) for water measurement amount is connected between the branch road, the flowmeter (4) is connected to the control
Device (6).
4. a kind of Intelligence Stanza Water System for house as claimed in claim 1, it is characterised in that：Also include and the controller
(6) carry out information exchange application terminal, the application terminal be used for consult real-time water consumption, save water, calculating water rate, based on
Calculate house water supply system hydraulic pressure, abnormal conditions alarm and send control instruction to the controller (6).
5. a kind of intelligent water-saving method for house of Intelligence Stanza Water System based on claim 1, it is characterised in that it is wrapped
Include following steps：
S1, the data on flows based on flowmeter (4), start leakage monitoring pattern；
Under S2, leakage monitoring pattern, controller (6) obtains forefront pressure sensor (3) and terminal pressure sensor (7) is detected
To the front end hydraulic pressure data and end hydraulic pressure data of water pipe (1)；
S3, the controller (6) the confirmation front end hydraulic pressure data and end hydraulic pressure data ratio are performed in abnormal ranges
Emergency processing is acted.
6. a kind of intelligent water-saving method for house as claimed in claim 5, it is characterised in that：Also include step S4, perform and answer
It is unchanged after anxious processing action or in the flow twenty four hours of the flowmeter (4) metering, into off-line mode.
7. a kind of intelligent water-saving method for house as claimed in claim 5, it is characterised in that flowmeter is based in step S1
(4) particular content of data on flows is：The flow of flowmeter (4) metering is unchanged in two hours.
8. a kind of intelligent water-saving method for house as claimed in claim 5, it is characterised in that the abnormal ranges are：It is described
The ratio of front end hydraulic pressure data and end hydraulic pressure data is more than 1.5.
9. a kind of intelligent water-saving method for house as claimed in claim 5, it is characterised in that controller described in step S3
(6) particular content of execution emergency processing action is：Controller (6) control registers one's residence valve (2) closing to cut off water supply.
10. a kind of intelligent water-saving method for house as claimed in claim 9, it is characterised in that controller described in step S3
(6) particular content for performing emergency processing action further comprises：The controller (6) is by the front end hydraulic pressure data and end
The ratio of hydraulic pressure data sends to application terminal to remind user leakage loss situation occur in the situation of abnormal ranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039717.0A CN107119752B (en) | 2017-01-18 | 2017-01-18 | A kind of Intelligence Stanza Water System and water-saving method for house |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039717.0A CN107119752B (en) | 2017-01-18 | 2017-01-18 | A kind of Intelligence Stanza Water System and water-saving method for house |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107119752A true CN107119752A (en) | 2017-09-01 |
| CN107119752B CN107119752B (en) | 2018-04-06 |
Family
ID=59717923
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710039717.0A Expired - Fee Related CN107119752B (en) | 2017-01-18 | 2017-01-18 | A kind of Intelligence Stanza Water System and water-saving method for house |
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| Country | Link |
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| CN (1) | CN107119752B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023156611A1 (en) * | 2022-02-17 | 2023-08-24 | Wasserversorgung Rheinhessen-Pfalz GmbH | Shut-off device for connection to a water supply system, water supply system with shut-off device, and method for operating the shut-off device in the water supply system |
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| CN201756721U (en) * | 2010-03-23 | 2011-03-09 | 唐睿达 | Water leakage control system for family tap water in the absence of human monitoring |
| CN201991033U (en) * | 2011-03-29 | 2011-09-28 | 江洪 | Household water-leakage preventing system |
| US20120026004A1 (en) * | 2010-11-09 | 2012-02-02 | General Electric Company | Energy manager-water leak detection |
| DE102011055642A1 (en) * | 2011-11-23 | 2013-05-23 | Tobias Heckhausen | Method for preventing damages by leakages in e.g. gas pipelines in chemical industry, involves closing shut-off device when controller does not receive signal from secondary flowmeter during receiving signal from primary flowmeter |
| CN203096816U (en) * | 2013-01-28 | 2013-07-31 | 禹红 | Remote monitoring system based on constant pressure frequency converting control water supply network |
| CN103890284A (en) * | 2011-09-21 | 2014-06-25 | 管道系统有限公司 | Building water safety device |
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2017
- 2017-01-18 CN CN201710039717.0A patent/CN107119752B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201756721U (en) * | 2010-03-23 | 2011-03-09 | 唐睿达 | Water leakage control system for family tap water in the absence of human monitoring |
| US20120026004A1 (en) * | 2010-11-09 | 2012-02-02 | General Electric Company | Energy manager-water leak detection |
| CN201991033U (en) * | 2011-03-29 | 2011-09-28 | 江洪 | Household water-leakage preventing system |
| CN103890284A (en) * | 2011-09-21 | 2014-06-25 | 管道系统有限公司 | Building water safety device |
| DE102011055642A1 (en) * | 2011-11-23 | 2013-05-23 | Tobias Heckhausen | Method for preventing damages by leakages in e.g. gas pipelines in chemical industry, involves closing shut-off device when controller does not receive signal from secondary flowmeter during receiving signal from primary flowmeter |
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| WO2023156611A1 (en) * | 2022-02-17 | 2023-08-24 | Wasserversorgung Rheinhessen-Pfalz GmbH | Shut-off device for connection to a water supply system, water supply system with shut-off device, and method for operating the shut-off device in the water supply system |
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| Publication number | Publication date |
|---|---|
| CN107119752B (en) | 2018-04-06 |
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Granted publication date: 20180406 Termination date: 20220118 |