CN112032570A - Water leakage detection protection method - Google Patents
Water leakage detection protection method Download PDFInfo
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- CN112032570A CN112032570A CN202010854369.4A CN202010854369A CN112032570A CN 112032570 A CN112032570 A CN 112032570A CN 202010854369 A CN202010854369 A CN 202010854369A CN 112032570 A CN112032570 A CN 112032570A
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- water inlet
- valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/10—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with axial admission
- G01F1/115—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with axial admission with magnetic or electromagnetic coupling to the indicating device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Acoustics & Sound (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a water leakage detection protection method, which comprises the following steps: a moving part is arranged on the inner side of the water inlet pipeline, and a sensing device for detecting the movement of the moving part is arranged at a corresponding position; when the sensing device senses that the time of the continuous rotation of the moving part or the time of the continuous position deviation exceeds first preset time, controlling a valve on the water inlet pipeline to be closed; and after the valve is closed, detecting the pressure change of the water inlet pipeline within a second preset time, if the pressure continuously drops and/or the pressure drops beyond a preset value, keeping the valve closed, otherwise, controlling the valve to be opened. According to the water leakage detection protection method, whether the water inlet pipeline leaks or not is judged by detecting the liquid flowing time in the pipeline and the liquid pressure in the pipeline respectively, and the previous detection result is corrected by the subsequent detection result, so that the water leakage of the water inlet pipeline is effectively prevented from being judged by mistake due to overlong water using time of a user.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a water leakage detection protection method.
Background
Along with the improvement of people's standard of living, more and more people select to install the protector that leaks additional in the inlet channel at home for whether detect the inlet channel at home and leak. At present, a water leakage protector in the market judges whether a water inlet pipeline leaks or not by taking the time of continuous flowing of liquid in the pipeline as a basis, and a detection method of the water leakage protector comprises the following steps: when the liquid flowing time in the water inlet pipeline exceeds a preset value, the water leakage protector can judge that the water inlet pipeline leaks water and then close a valve in the water inlet pipeline. When a user needs to use water for a long time under the conditions of sanitation and hygiene or other conditions, the water leakage of the water inlet pipeline can be misjudged by taking the continuous flowing time of the liquid in the water inlet pipeline as a judgment basis, and then the normal water use of the user is influenced by closing the valve.
Disclosure of Invention
The present invention is directed to solving one of the technical problems of the prior art. Therefore, the invention provides a water leakage detection protection method which can detect water leakage of a water inlet pipeline twice in sequence and correct the previous detection result with the subsequent detection result, so as to prevent a user from misjudging that the water inlet pipeline leaks water when the water using time is too long.
The water leakage detection protection method according to the embodiment of the first aspect of the invention comprises the following steps: the induction device induces whether the continuous rotation time or the position deviation time of a moving part arranged in the water inlet pipeline exceeds a first preset time or not; when the continuous rotation time or the position deviation time of the moving part exceeds the first preset time, controlling a valve on the water inlet pipeline to be closed; and after the valve is closed, detecting the pressure change of the water inlet pipeline within a second preset time, if the pressure continuously drops and/or the pressure drops beyond a preset value, keeping the valve closed, otherwise, controlling the valve to be opened.
The water leakage detection protection method provided by the embodiment of the invention has the following technical effects: the method can detect whether the water inlet pipeline leaks or not in two different detection modes in sequence, and judges whether the water inlet pipeline leaks or not according to the subsequent detection result, thereby effectively preventing a user from misjudging that the water inlet pipeline leaks because of overlong water using time. Specifically, the method comprises the steps of firstly, carrying out first water leakage detection on the water inlet pipeline according to the time that liquid in the water inlet pipeline continuously flows, judging that water leakage possibly occurs in the water inlet pipeline when the sensing device senses that the time that the moving part continuously rotates or the time that the moving part generates position deviation exceeds first preset time when the liquid continuously flows through the water inlet pipeline, and then controlling a valve on the water inlet pipeline to be closed. After the valve is closed, the control module performs second water leakage detection on the water inlet pipeline according to the change value of the liquid pressure in the water inlet pipeline, if the liquid pressure in the water inlet pipeline continuously drops or drops beyond a preset value within second preset time, it is judged that water leakage really occurs in the water inlet pipeline, and the valve is kept in a closed state; if the liquid pressure in the water inlet pipeline does not continuously decrease or the decrease value does not exceed a preset value, the water inlet pipeline is judged to have no water leakage actually, the valve is opened, and the communication between the water inlet pipeline and the water supply pipeline is restored. Whether the water inlet pipeline leaks is judged by detecting twice successively, when the user uses water for a long time to lead the prior detection to misjudge that the water inlet pipeline leaks, the subsequent detection can also detect whether the water leakage occurs according to the change of the pressure in the water inlet pipeline, and the prior detection result is corrected, so that the water leakage caused by misjudgment of the water inlet pipeline when the user uses water for a long time is effectively prevented.
According to some embodiments of the invention, the moving part is an impeller made of a magnetic material and the induction means is a magnetic coil.
According to some embodiments of the invention, the moving part is an impeller made of a magnetic material, and the sensing device is a hall sensor.
According to some embodiments of the invention, the moving part is an impeller, the portion of the water inlet pipe where the impeller is provided is made of a light permeable material, and the sensing device is a photoelectric sensor.
According to some embodiments of the invention, the moving part is an impeller, the portion of the water inlet pipe where the impeller is provided is made of a light-permeable material, and the sensing device is a camera device.
According to some embodiments of the present invention, the moving part is a push plate, the push plate is provided with a resetting element for resetting, the portion of the water inlet pipe provided with the push plate is made of a light-permeable material, and the sensing device is a photoelectric sensor.
According to some embodiments of the present invention, the moving part is a push plate, the push plate is provided with a reset element for resetting, the portion of the water inlet pipe provided with the push plate is made of a light-permeable material, and the sensing device is a camera device.
According to some embodiments of the invention, the valve is then kept closed, in particular: the valve is kept closed, and information is sent to a user through the communication device or an alarm is sent out through the alarm device to remind the user of water leakage in the water inlet pipeline.
According to some embodiments of the present invention, the valve on the water inlet pipe is controlled to be closed, specifically: and firstly, controlling the valve to be partially closed, and when the time that the moving part still rotates or the time that the moving part generates position deviation exceeds a third preset time, controlling the valve on the water inlet pipeline to be completely closed, otherwise, controlling the valve on the water inlet pipeline to be completely opened.
According to some embodiments of the invention, there is further included the steps of: and controlling the valve to be closed every fourth preset time, detecting the pressure change of the water inlet pipeline in the second preset time, if the pressure continuously drops and/or the pressure drops to exceed a preset value, keeping the valve closed, and otherwise, controlling the valve to be opened.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a cross-sectional view of a pipe employing a water leak detection protection method according to an embodiment of the present invention;
fig. 2 is a sectional view of another pipe employing a water leakage detection protection method according to an embodiment of the present invention.
Reference numerals:
the valve 100, the impeller 200, the sensing device 300, the pressure sensor 400, the push plate 500 and the reset element 600.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
A water leakage detection protection method according to an embodiment of the present invention is described below with reference to fig. 1 to 2.
According to the water leakage detection protection method of the embodiment of the invention, the sensing device 300 senses whether the continuous rotation time or the position deviation time of the moving part arranged in the water inlet pipeline exceeds a first preset time; when the continuous rotation time or the position deviation time of the moving part exceeds a first preset time, controlling the valve 100 on the water inlet pipeline to be closed; and after the valve 100 is closed, detecting the pressure change of the water inlet pipeline within a second preset time, if the pressure continuously drops and/or the pressure drops beyond a preset value, keeping the valve 100 closed, otherwise, controlling the valve 100 to be opened.
As shown in fig. 1 and 2, the valve 100 is disposed at a communication position between the water inlet pipe and the water supply pipe, the moving part is disposed inside the water inlet pipe and behind the valve 100, the moving part is disposed behind the valve 100 or in front of the valve 100, the moving part may be the impeller 200 or the push plate 500, but is not limited to one of them, the sensing device 300 is disposed outside the water inlet pipe and corresponds to the position of the moving part, when the moving part is the impeller 200, the sensing device 300 senses a time when the impeller 200 continuously rotates, and when the moving part is the push plate 500, the sensing device 300 senses a time when the push plate 500 is displaced. Pressure sensor 400 sets up in valve 100 rear, and the control module group is connected with valve 100, induction system 300 and pressure sensor 400 electricity, and the control module group is equipped with first preset time and second preset time including timing device in the timing device. When the water inlet pipeline leaks water or a user uses water, the control module firstly detects the water leakage of the water inlet pipeline for the first time by taking the continuous flowing time of the liquid as a basis. Specifically, liquid continuously flows through the water inlet pipe, the moving part starts to rotate or generates position deviation under the driving of the liquid, after the sensing device 300 senses the rotation or the position deviation of the moving part, the control module controls the timing device to time the time when the sensing device 300 senses the continuous rotation or the position deviation of the moving part, and when the continuous rotation or the position deviation of the moving part exceeds a first preset time, the control module judges that the water inlet pipe leaks and controls the valve 100 to close; when the continuous rotation time of the moving part or the time of position deviation does not exceed the first preset time, the control module judges that no water leakage occurs in the water inlet pipeline. When the first water leakage detection result is water leakage and the valve 100 is closed, the control module performs second water leakage detection on the water inlet pipeline. Specifically, the control module controls the pressure sensor 400 to continuously detect the liquid pressure inside the water inlet pipe within a second preset time, and determines that water leakage does occur in the water inlet pipe and keeps the valve 100 closed if the liquid pressure continuously decreases or the pressure decreases beyond a preset value within the second preset time; if the liquid pressure does not continuously drop or the pressure drop does not exceed the preset value, it is determined that no water leakage occurs in the water inlet pipe, and the valve 100 is controlled to open.
According to the water leakage detection and protection method of the embodiment of the invention, the method firstly carries out first water leakage detection on the water inlet pipeline according to the time of the liquid flowing continuously, closes the valve 100 when the first water leakage detection result is water leakage, carries out second water leakage detection on the water inlet pipeline according to the change value of the liquid pressure within a certain time, and finally judges whether the water inlet pipeline leaks water or not according to the result of the second water leakage detection. Compared with the method for judging whether the water leakage occurs in the water inlet pipeline only by the time that the liquid in the water inlet pipeline continuously flows, the method can carry out the second water leakage detection on the water inlet pipeline after the first water leakage detection is finished and the valve 100 is closed, and the result of the second water leakage detection can correct the result of the first water leakage detection, thereby effectively preventing a user from mistakenly judging that the water leakage occurs in the water inlet pipeline when the water consumption time is too long and closing the valve 100, and improving the convenience of water consumption of the user.
In some embodiments of the present invention, the moving part is the impeller 200, the impeller 200 is made of a magnetic material, and the induction device 300 is a magnetic coil. For example, as shown in fig. 1, the magnetic coil is disposed outside the water inlet pipe and corresponds to the position of the impeller 200 made of a magnetic material, the magnetic coil is electrically connected to the control module, when the impeller 200 made of a magnetic material rotates, a current is generated inside the magnetic coil, the control module controls the timing device to time the time that the magnetic coil continuously generates the current, and compares the time with a first preset time, and when the time that the magnetic coil continuously generates the current exceeds the first preset time, the result of the first water leakage detection indicates that water leakage occurs in the water inlet pipe; when the time that the magnetic coil continuously generates the current does not exceed the first preset time, the result of the first water leakage detection indicates that no water leakage occurs in the water inlet pipeline.
In some embodiments of the present invention, the moving part is the impeller 200, the impeller 200 is made of a magnetic material, and the sensing device 300 is a hall sensor. For example, as shown in fig. 1, the hall sensor is disposed outside the water inlet pipe and corresponds to the position of the impeller 200 made of a magnetic material, the hall sensor is electrically connected to the control module, when the impeller 200 rotates, the hall sensor senses a change in the magnetic field, the control module controls the timing device to time the time when the magnetic field continuously changes, and compares the time with a first preset time, and when the hall sensor senses that the time when the magnetic field continuously changes exceeds the first preset time, the result of the first water leakage detection indicates that water leakage occurs in the water inlet pipe; when the time that the Hall sensor senses that the magnetic field continuously changes does not exceed the first preset time, the result of the first water leakage detection indicates that no water leakage occurs in the water inlet pipeline.
In some embodiments of the present invention, the moving part is the impeller 200, the portion of the water inlet pipe where the impeller 200 is disposed is made of a light-permeable material, and the sensing device 300 is a photoelectric sensor. For example, as shown in fig. 1, a portion of the water inlet pipe on which the impeller 200 is disposed is made of a light-permeable material, the photoelectric sensor includes a transmitting end and a receiving end, the transmitting end and the receiving end are disposed on two sides or the same side of the water inlet pipe, and correspond to the position of the impeller 200, when the impeller 200 is stationary, the impeller 200 may or may not block the photoelectric signal sent by the transmitting end, the impeller 200 may or may not reflect the photoelectric signal sent by the transmitting end, the receiving end may or may not continuously receive the photoelectric signal sent by the transmitting end, the photoelectric signal received by the receiving end may remain unchanged, when the impeller 200 rotates, the impeller 200 may intermittently block or reflect the photoelectric signal sent by the transmitting end along with the rotation, the photoelectric signal received by the receiving end may continuously change, and at this time, the control module controls the timing device to time when the photoelectric signal continuously changes, comparing the time with a first preset time, and when the time that the photoelectric signal continuously changes exceeds the first preset time, determining that water leakage occurs in the water inlet pipeline as a result of the first water leakage detection; when the time that the photoelectric signal continuously changes does not exceed the first preset time, the result of the first water leakage detection is that no water leakage occurs in the water inlet pipeline. The photosensor may be a reflective plate type photosensor, a correlation type photosensor, or a groove type photosensor, but is not limited to one of them.
In some embodiments of the present invention, the moving part is the impeller 200, the portion of the water inlet pipe where the impeller 200 is located is made of a light-permeable material, and the sensing device 300 is a camera device. For example, as shown in fig. 1, a portion of the water inlet pipe on which the impeller 200 is provided is made of a light-permeable material, and the image pickup device is provided outside the water inlet pipe at a position corresponding to the impeller 200. The image information of the impeller 200 is continuously acquired by the camera device, when the impeller 200 is static, the image information acquired by the camera device is kept unchanged, when the impeller 200 rotates, the image information acquired by the camera device can be continuously changed, at the moment, the control module can control the timing device to time the time that the image information acquired by the camera device is continuously changed, and compare the time with a first preset time, and when the time that the image information acquired by the camera device is continuously changed exceeds the first preset time, the first water leakage detection result is water leakage of the water inlet pipeline; when the time that the image information collected by the camera device continuously changes does not exceed the first preset time, the result of the first water leakage detection is that no water leakage occurs in the water inlet pipeline.
In some embodiments of the present invention, the moving part is a push plate 500, a reset element 600 for resetting is disposed on the push plate 500, a portion of the water inlet pipe where the push plate 500 is disposed is made of a light-permeable material, and the sensing device 300 is a photoelectric sensor. For example, as shown in fig. 2, the push plate 500 is disposed in the water inlet pipe, and a reset element 600 is disposed between the push plate 500 and the water inlet pipe, the reset element 600 may be a spring or a spring, but is not limited to one of the spring or the spring, a portion of the water inlet pipe on which the push plate 500 is disposed is made of a light-permeable material, the photoelectric sensor includes a transmitting end and a receiving end, and the transmitting end and the receiving end are disposed on two sides or the same side of the water inlet pipe, and correspond to the position of the push plate 500. When the push board 500 is at the initial position, the push board 500 may or may not block the optical-electrical signal sent by the sending end, the push board 500 may or may not reflect the optical-electrical signal sent by the sending end, the receiving end may or may not continuously receive the optical-electrical signal sent by the sending end, the optical-electrical signal received by the receiving end may remain unchanged, when the push plate 500 is pushed by water flow, the push plate 500 may or may not block the photoelectric signal sent by the sending end, the push plate 500 may or may not reflect the photoelectric signal sent by the sending end, the photoelectric signal received by the receiving end may change, at this time, the control module may control the timing device to time the time when the photoelectric signal changes and compare the time with a first preset time, when the time for the photoelectric signal to change exceeds a first preset time, the result of the first water leakage detection indicates that water leakage occurs in the water inlet pipeline; when the time for the photoelectric signal to change does not exceed the first preset time, the result of the first water leakage detection is that no water leakage occurs in the water inlet pipeline. When the flow of water stops after the outlet end of the inlet conduit or the valve 100 is closed, the push plate 500 returns to the original position by the restoring member 600. The photosensor may be a reflective plate type photosensor, a correlation type photosensor, or a groove type photosensor, but is not limited to one of them.
In some embodiments of the present invention, the moving part is a push plate 500, a reset element 600 for resetting is disposed on the push plate 500, a portion of the water inlet pipe where the push plate 500 is disposed is made of a light-permeable material, and the sensing device 300 is a camera device. For example, as shown in fig. 2, the push plate 500 is disposed in the water inlet pipe, and a reset element 600 is disposed between the push plate 500 and the water inlet pipe, the reset element 600 may be a spring or a spring, but is not limited to one of the two, a portion of the water inlet pipe on which the push plate 500 is disposed is made of a light-permeable material, and the image capturing device is disposed outside the pipe and corresponds to the position of the push plate 500. The image information of the push plate 500 is continuously acquired by the camera device, when the push plate 500 is static, the image information acquired by the camera device is kept unchanged, when the push plate 500 is pushed by liquid, the image information acquired by the camera device changes, at the moment, the control module can control the timing device to time the time when the image information acquired by the camera device changes, and compare the time with first preset time, and when the time when the image information acquired by the camera device changes exceeds the first preset time, the result of first water leakage detection is that the water inlet pipeline leaks water; when the time for the image information collected by the camera device to change does not exceed the first preset time, the result of the first water leakage detection is that no water leakage occurs in the water inlet pipeline. When the flow of water stops after the outlet end of the inlet conduit or the valve 100 is closed, the push plate 500 returns to the original position by the restoring member 600.
In some embodiments of the present invention, the valve 100 is kept closed, specifically: the valve 100 remains closed and sends a message to the user via the communication device or an alarm via the alarm device to alert the user that water leaks from the water inlet pipe. The control module group also comprises a communication device and an alarm device, when the second water leakage detection is completed and the detection result is that the water inlet pipeline leaks water, the control module group can send a signal of 'pipeline leakage' to the mobile terminal of the user through the communication device and control the alarm device to give an alarm sound to remind the user that the water inlet pipeline leaks water.
In some embodiments of the present invention, the valve 100 on the water inlet pipe is controlled to be closed, specifically: the valve 100 is controlled to be partially closed, when the time that the moving part still rotates or the time that the position deviation occurs exceeds a third preset time, the valve 100 on the water inlet pipeline is controlled to be completely closed, otherwise, the valve 100 on the water inlet pipeline is controlled to be completely opened. Through setting up as above, after the user's water used exceeded first preset time, valve 100 also can not be closed completely immediately and carry out the detection of leaking for the second time to the inlet pipe. The valve 100 can be partially closed under the control of the control module to reduce the water outlet flow, a user can obviously feel that the water outlet flow is reduced if the user uses water, and then the water outlet end of the water inlet pipeline is manually closed after the water using time is too long, the time of continuous rotation of the moving part or the time of position deviation does not exceed the third preset time, the result of first water leakage detection is that the water inlet pipeline does not leak water, the control module cannot control the valve 100 to be closed and perform second water leakage detection on the water inlet pipeline, and the convenience of water use for the user is further improved.
In a further embodiment of the present invention, the valve 100 is first controlled to partially close, specifically: the valve 100 is partially closed and a message is sent to the user via a communication device or an alarm is issued via an alarm device to alert the user that the water usage is over time. When the time for the continuous rotation of the moving part or the time for the position deviation exceeds the first preset time but does not exceed the third preset time, the control module controls the valve 100 to be partially closed to reduce the water outlet flow, and then sends a signal of 'too long water using time' to the mobile terminal of the user through the communication device and controls the alarm device to give an alarm sound so as to remind the user to close the water outlet end of the water inlet pipeline in time.
In some embodiments of the present invention, the method further comprises the following steps: and controlling the valve 100 to be closed every fourth preset time, detecting the pressure change of the water inlet pipeline in the second preset time, if the pressure continuously drops and/or the pressure drops to exceed a preset value, keeping the valve 100 closed, otherwise, controlling the valve 100 to be opened. When the moving part or the sensing device 300 fails and the water inlet pipe cannot be detected for the first time, the valve 100 cannot be triggered to close to detect the water inlet pipe for the second time. At this time, only the fourth preset time needs to be set in the timing device, and the control valve 100 is automatically closed every fourth preset time, even when the moving component or the sensing device 300 has a fault, the pressure sensor 400 can detect the liquid pressure in the water inlet pipe within the second preset time to determine whether the water inlet pipe leaks.
The water leakage detection protection method according to the embodiment of the present invention is described in detail with a specific embodiment according to fig. 1. It is to be understood that the following description is only exemplary, and not a specific limitation of the invention.
As shown in fig. 1, according to the water leakage detection protection method of the embodiment of the present invention, a valve 100, a pressure sensor 400, a moving part, a sensing device 300, and a control module are disposed on a pipe. The valve 100 is disposed at a communication position between the water inlet pipeline and the water supply pipeline, and is used for controlling the on-off of liquid between the water inlet pipeline and the water supply pipeline. The pressure sensor 400 is disposed behind the valve 100 to detect the pressure at the water inlet pipe. The moving part, which may be the impeller 200, is disposed behind the valve 100. The push plate 500 may be, but not limited to, one of the push plate 500 and the impeller 200 may rotate along with the flow of the liquid, and the push plate 500 may be pushed a distance along the flow direction of the liquid and reset by the reset element 600 when the liquid is stationary. The moving parts may be disposed in front of the valve 100 in addition to behind the valve 100. The sensing device 300 is disposed outside the water inlet pipe and corresponds to a position of the moving part for sensing a rotation or a position deviation of the moving part, and the sensing device 300 may be a magnetic coil, a hall sensor, a photoelectric sensor, or a camera device, but is not limited to one of them. The control module comprises a timing device and a communication device, wherein the timing device is provided with first preset time, second preset time, third preset time and fourth preset time, the first preset time, the second preset time, the third preset time and the fourth preset time are all adjustable through the control module, the communication device is used for receiving or sending signals, and the control module is further electrically connected with the pressure sensor 400, the valve 100 and the sensing device 300.
The water leakage detection protection method comprises the following specific implementation processes: whether induction system 300 continuously detects moving part and rotates or whether take place the offset, when user's water or inlet channel take place to leak water, liquid constantly flows through inlet channel drive moving part and rotates or removes, induction system 300 just can sense moving part and rotate or take place the offset, induction system 300 senses moving part and rotates or take place the offset back, control module group just can control timing device and continuously rotates or take place the offset time to induction system 300 to moving part and time, and compare this time and first preset time. When the time that the sensing device 300 senses that the moving part rotates continuously or the position deviation occurs exceeds a first preset time, the control module controls the valve 100 to be partially closed to reduce the water outlet flow at the water outlet end of the water inlet pipeline, meanwhile, a signal of 'too long water using time' is sent to a user through the communication device, the timing device continues to time the time that the sensing device 300 senses that the moving part rotates continuously or the position deviation occurs, and the time is compared with a third preset time; when the time that the sensing device 300 senses that the moving part continuously rotates or the position deviation occurs does not exceed a first preset time, the control module may determine that the water inlet pipe does not leak water and keep the valve 100 open. When the time that the sensing device 300 senses that the moving part continuously rotates or the position deviation occurs exceeds a third preset time, the control module controls the valve 100 to be completely closed so as to cut off the communication between the water inlet pipeline and the water supply pipeline, and then controls the pressure sensor 400 behind the valve 100 to continuously detect the liquid pressure in the water inlet pipeline within a second preset time; when the sensing device 300 senses that the time for the moving part to continuously rotate or the moving part to generate the position deviation does not exceed a third preset time, the control module may determine that the water inlet pipe does not leak water and control the valve 100 to open. When the liquid pressure in the water inlet pipe continuously drops within the second preset time or the pressure value drops to exceed the preset value, the control module can judge that the water inlet pipe leaks, so that the valve 100 is kept closed, and meanwhile, a signal of 'water leakage occurs in the pipe' is sent to a user through the communication device, otherwise, the control module can judge that the water inlet pipe does not leak, and the valve 100 is controlled to be opened. When the moving part or the sensing device 300 breaks down, the control module controls the valve 100 to close every fourth preset time when the moving part continuously rotates or the time of position deviation cannot be detected to judge whether the pipeline leaks, and the pressure sensor 400 behind the control valve 100 detects the liquid pressure in the water inlet pipeline in the second preset time to detect whether the water inlet pipeline leaks, keeps the valve 100 closed when the water leakage occurs, and sends a signal of 'water leakage occurs in the pipeline' to a user through the communication device.
According to the water leakage detection and protection method provided by the embodiment of the invention, at least the following effects can be achieved, the method firstly judges whether the water inlet pipeline leaks or not by detecting the continuous flowing time of the liquid in the water inlet pipeline, then judges whether the water inlet pipeline leaks or not by detecting the change of the pressure in the water inlet pipeline, and corrects the previous detection result by the subsequent detection result, so that the phenomenon that the water inlet pipeline leaks due to misjudgment of a user caused by overlong water using time is effectively prevented. When the water using time of the user exceeds the first preset time of the timing device and does not exceed the third preset time, the valve 100 can be partially closed to reduce the water outlet flow of the water inlet pipe, the user is reminded of the overtime of the water using, as long as the user actively closes the water outlet end of the water inlet pipe within the third preset time to stop rotating or resetting the moving part, the control module group cannot control the valve 100 to close and then control the pressure sensor 400 to perform the second water leakage detection on the water inlet pipe, and the convenience of the user in the water using process is improved. When the moving part or the sensing device 300 has a fault and whether the water inlet pipe leaks cannot be judged by detecting the continuous flowing time of the liquid, the control module controls the valve 100 to be periodically closed and detects the water leakage of the water inlet pipe. The communication device in the control module can send a signal to a user when the water consumption of the user is over time or the water inlet pipeline leaks water so as to remind the user of abnormal conditions in the water inlet pipeline.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A water leakage detection protection method is characterized by comprising the following steps:
the sensing device (300) senses whether the continuous rotation time or the position deviation time of the moving part arranged in the water inlet pipeline exceeds a first preset time or not;
when the continuous rotation time or the position deviation time of the moving part exceeds the first preset time, controlling a valve (100) on the water inlet pipeline to be closed;
and after the valve (100) is closed, detecting the pressure change of the water inlet pipeline within a second preset time, if the pressure continuously drops and/or the pressure drops beyond a preset value, keeping the valve (100) closed, otherwise, controlling the valve (100) to be opened.
2. The water leak detection protection method according to claim 1, wherein the moving component is an impeller (200), the impeller (200) is made of a magnetic material, and the induction device (300) is a magnetic coil.
3. The water leakage detection protection method according to claim 1, wherein said moving component is an impeller (200), said impeller (200) is made of magnetic material, and said induction device (300) is a hall sensor.
4. The water leakage detection protection method according to claim 1, wherein said moving component is an impeller (200), the portion of said water inlet pipe where said impeller (200) is located is made of light permeable material, and said sensing device (300) is a photoelectric sensor.
5. The water leakage detection and protection method according to claim 1, wherein said moving component is an impeller (200), a portion of said water inlet pipe where said impeller (200) is located is made of a light-permeable material, and said sensing device (300) is a camera device.
6. The water leakage detection protection method according to claim 1, wherein the moving component is a push plate (500), the push plate (500) is provided with a reset element (600) for resetting, the portion of the water inlet pipe provided with the push plate (500) is made of a light-permeable material, and the sensing device (300) is a photoelectric sensor.
7. The water leakage detection protection method according to claim 1, wherein the moving component is a push plate (500), the push plate (500) is provided with a reset element (600) for resetting, the portion of the water inlet pipe provided with the push plate (500) is made of a light-permeable material, and the sensing device (300) is a camera device.
8. The water leak detection protection method according to claim 1, wherein the valve (100) is kept closed, specifically: the valve (100) is kept closed, and information is sent to a user through a communication device or an alarm is given through an alarm device to remind the user of water leakage in the water inlet pipeline.
9. The water leakage detection protection method according to claim 1, wherein the valve (100) on the water inlet pipe is controlled to be closed, specifically: and firstly, controlling the valve (100) to be partially closed, and when the time that the moving part still rotates continuously or the time that the position deviation occurs exceeds a third preset time, controlling the valve (100) on the water inlet pipeline to be completely closed, otherwise, controlling the valve (100) on the water inlet pipeline to be completely opened.
10. The water leakage detection and protection method according to claim 1, further comprising the steps of: and controlling the valve (100) to be closed every fourth preset time, detecting the pressure change of the water inlet pipeline in the second preset time, if the pressure continuously drops and/or the pressure drops to exceed a preset value, keeping the valve (100) closed, and otherwise, controlling the valve (100) to be opened.
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