CN104990675A - Detection method of fluid leakage and water leakage protector with application of detection method - Google Patents
Detection method of fluid leakage and water leakage protector with application of detection method Download PDFInfo
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Abstract
The present invention discloses a detection method of fluid leakage and a water leakage protector with the application of the detection method, belonging to the field of fluid leakage detection. According to the method, the velocity of a fluid is detected, and when the fluid has a speed and the velocity is constant and reaches a set time, fluid leakage is judged. The invention also discloses the water leakage protector with the application of the detection method. According to the invention, the velocity of the fluid is not related with the reliability and correctness of leakage judgment, according to the detection method, the fluid leakage with various reasons and various states can be timely found, the method is safe and reliable to use, and especially a small flow leakage can be effectively found and solved. According to the water leakage protector with the application of the detection method, the technical problem that an existing leakage protector can not detect small flow leakage is solved, the problem of water resource waste caused by forgetting to turn off a faucet can be effectively solved, and the water leakage protector can be widely applied to a household water pipeline, a water meter, a water purifier and the like.
Description
Technical field
The present invention relates to a kind of leak hunting method of fluid, more particularly, relate to the detection method that a kind of fluid leaks and the leak stop applying this detection method.
Background technology
In recent years, along with the raising day by day of living standard, domestic water, more and more universal with gas, and in the conveyance conduit of these fluids such as water, gas, the leakage of fluid happens occasionally, if this leakage by Timeliness coverage, not only can not be made troubles to life, but also resource can be wasted and bring property loss, serious even can cause security incident, such as, indoor water-leakage easily soaks furniture and floor, also can cause circuit safety problem; Gas leakage, to indoor, easily causes safety problem on fire especially.The leakage of these fluids is the most common with the leakage of domestic water, also occurred that some detect the protection product leaked on the market, generally be divided into electrical type and mechanical two series products, the feature of electronic product detects " leak source ", but it is less to detect the scope of leaking; And machinery product is when detecting, when there is the situation of leaking in a small amount, just cannot detect.
And; existing these detect the protection product leaked; its general detection method is: the restriction flow velocity adopting detection flow rate of water flow whether to exceed setting judges whether to leak; namely existing detection method generally believes; there is a maximum flow velocity during just conventional water, when occurring to leak, flow rate of water flow can be greater than just conventional water flow velocity; therefore detect that flow velocity exceedes the flow velocity just commonly using water and namely thinks to leak, this just conventional water flow velocity is exactly the restriction flow velocity determined according to normal water habits.But, the shortcoming of this method is, when current are less than the restriction flow velocity of setting, just cannot judge whether to leak, therefore leaking of low discharge cannot be detected, such as forget that the flow velocity of this just conventional water of closed tap just cannot judge in time to leak and take measures, reminding user closes water source in time; And, if the restriction flow velocity arranged is too low, will daily water consumption be affected; Also have, the flow velocity of just conventional water is not fixed, sometimes need to use multiple water swivel simultaneously, sometimes use water swivel is only needed, therefore, the restriction velocity ratio that needs are arranged is more difficult to be determined, and varies with each individual, cause adopting the water leakage situation judged in this way and just there will be comparatively big error, poor accuracy.
Such as, Chinese Patent Application No. 201410573949.0, Shen Qing Publication day is on March 25th, 2015, invention and created name is: a kind of intelligent waterproof leakage device, this application case relates to a kind of intelligent waterproof leakage device, comprise water source tube, water intaking valve, water source tube front end is provided with signal detection unit, signal detection unit comprises the rotating shaft be vertically installed in water source tube and the waterleaf be fixed in rotating shaft, the touch device that can play rotation with one is provided with above rotating shaft, this waterproof leakage device also comprises control system unit and valve actuator unit, wherein control system unit is connected with signal detection unit induction type by detecting point, valve actuator cellular installation is above water intaking valve, it can make the action of On/Off water valve according to the instruction of control system unit.The intelligent waterproof leakage device of this application case judges that the method for leaking is, the restriction flow velocity of water in water source tube described in each special time period is provided with in control system unit, when the flow velocity that control system unit detects Duan Shui sometime exceedes restriction flow velocity, namely send and close water valve instruction to described valve actuator unit.The method that the detection of this application case is leaked remains detection and " exceedes and limit flow velocity ", it is the contribution of prior art, foundation user daily water consumption rule will be several specific time periods with moisture, again restriction flow velocity is set respectively according to different time sections, reaches and effectively detect and the problem of automatic control water valve leakage.Although this way can make the formulation of restriction flow velocity more meet watering law, but still existence detection " exceedes and limits flow velocity " defect existed, and especially cannot detect low discharge and leak.
And for example, Chinese Patent Application No. 201010534091.9, Shen Qing Publication day is on May 23rd, 2012, invention and created name is: a kind of with the matching used water Leak Detection of water purifier and control system and method thereof, the detection method of this application case is, judge whether the flow of water in water inlet pipe, pressure or change in flow rule meet the discharge of setting, pressure or change in flow rule, remain and utilize flow or flow velocity to exceed flow of its setting or flow velocity to carry out leaking and judge, also cannot realize the detection that low discharge leaks.
Summary of the invention
1. invent the technical matters that will solve
The object of the invention is to the above-mentioned deficiency overcoming prior art; the detection method providing a kind of fluid to leak and the leak stop applying this detection method; adopt technical scheme of the present invention; when fluid has flow velocity and flow velocity continued for constant; and reach setting-up time; then be judged as leaking; the flow velocity size of fluid and the reliability of judgement, correctness have nothing to do; this detection method can the fluid of Timeliness coverage a variety of causes and various state be leaked; safe and reliable; especially for the leakage of low discharge, also can effectively find and solve.
2. technical scheme
For achieving the above object, technical scheme provided by the invention is:
The detection method that a kind of fluid of the present invention leaks, the flow velocity of test fluid, when fluid has flow velocity and flow velocity continued for constant reach setting-up time, is then judged as that fluid leaks.
Further, described setting-up time is according to maximum normal setting service time of fluid.
Further, specifically comprise the following steps:
(a) flow rate detection: the flow velocity utilizing flow rate detection element Real-time Collection fluid, and the flow rate information of fluid is fed back to microprocessor carry out data processing;
(b) constant speed timing: when flow rate detection element testing has flow velocity to fluid, and when the constant flow rate of fluid is constant, microprocessor starts timing, if during timing, the flow velocity of fluid changes, then microprocessor timing resets;
C () is leaked and is judged: when the timing time of microprocessor reaches setting-up time, be then judged as that fluid leaks;
(d) action executing: after being judged as that fluid leaks, Microprocessor S3C44B0X executive component closes the transfer passage of fluid.
Further, also comprise executive component and reset and user model switch step, specific as follows:
(I) microprocessor detects the signal pressed with or without button in real time;
(II) if microprocessor detects the signal that button is pressed, then microprocessor calculates the duration that button is pressed;
(III) equals or exceeds t second when the duration that button is pressed, then Microprocessor S3C44B0X executive component resets; Be no more than t second when the duration that button is pressed, then Microprocessor S3C44B0X user model changes.
Further, the duration t=3s that described button is pressed.
A kind of leak stop of the present invention, this leak stop applies the detection method that above-mentioned fluid leaks.
Further, comprising power supply, microprocessor, being located at the flow rate detection element in current and the electrically operated valve for cutting off water stream channel, described flow rate detection element is electrically connected with microprocessor, for the flow rate of water flow detected in real time is fed back to microprocessor; Described microprocessor is electrically connected with electrically operated valve by driver, for have flow velocity at current and flow velocity continued for constant and reach setting-up time time control electrically operated valve cut off water stream channel; Described power supply is electrically connected with microprocessor and electrically operated valve, for providing electric power for microprocessor and electrically operated valve.
Further, described flow rate detection element comprises is located at impeller in current and hall device, and described hall device is electrically connected with microprocessor, for detecting the rotating speed that impeller rotates with current, and the rotary speed information of impeller is fed back to microprocessor.
Further, also comprise button and pilot lamp, described button and pilot lamp are electrically connected with microprocessor respectively, and described button resets and user model switching for controlling electrically operated valve, and described pilot lamp is for showing the duty of leak stop.
Further, described power supply, microprocessor, flow rate detection element, electrically operated valve, button and pilot lamp are all integrated in a shell, and described shell has water inlet for access water lines and water delivering orifice.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with existing known technology, there is following remarkable result:
(1) detection method of a kind of fluid leakage of the present invention, the flow velocity of its test fluid, when fluid has flow velocity and flow velocity continued for constant reach setting-up time, then be judged as that fluid leaks, the flow velocity size of fluid and the reliability of judgement, correctness have nothing to do, this detection method can the fluid of Timeliness coverage a variety of causes and various state be leaked, safe and reliable, especially for the leakage of low discharge, also can effectively find and solve, the leak detection of water, oil and combustion gas etc. can be widely used in;
(2) detection method of a kind of fluid leakage of the present invention, its setting-up time, according to maximum normal setting service time of fluid, based on the laws of use of fluid, can prevent the normal use affecting fluid;
(3) a kind of fluid of the present invention detection method of leaking, it utilizes the flow velocity of flow rate detection element Real-time Collection fluid, and the flow rate information of fluid is fed back to microprocessor carries out data processing; When flow rate detection element testing has flow velocity to fluid, and when the constant flow rate of fluid is constant, microprocessor starts timing, if during timing, the flow velocity of fluid changes, then microprocessor timing resets; When the timing time of microprocessor reaches setting-up time, be then judged as that fluid leaks; After being judged as that fluid leaks, Microprocessor S3C44B0X executive component closes the transfer passage of fluid; Utilize microprocessor to realize data acquisition, analysis and control, intelligent automatic decision leakage situation, and close the transfer passage of fluid in time, avoid fluid to continue to leak, reduce the wasting of resources, reduce property loss and accident risk;
(4) detection method of a kind of fluid leakage of the present invention, it also comprises executive component and resets and user model switch step, is specially: microprocessor detects the signal pressed with or without button in real time; If microprocessor detects the signal that button is pressed, then microprocessor calculates the duration that button is pressed; Equal or exceed t second when the duration that button is pressed, then Microprocessor S3C44B0X executive component resets; Be no more than t second when the duration that button is pressed, then Microprocessor S3C44B0X user model changes; Utilize executive component reset operation, can fast quick-recovery fluid supply after leakage is got rid of, do not affect normal use, also can quick-recovery supply interruption of causing because exceeding the normal use of setting-up time soon; According to user habit, multiple user model can be set, select different user pattern according to the situation such as Different periods or season, use convenient;
(5) a kind of leak stop of the present invention, it applies the detection method that above-mentioned fluid leaks, solve existing leak stop and cannot detect the technical barrier that low discharge leaks, and effectively can solve and forget closed tap and the problem of the water waste caused, domestic water pipeline, water meter and water purifier etc. can be widely used in;
(6) a kind of leak stop of the present invention, it comprising power supply, microprocessor, being located at the flow rate detection element in current and the electrically operated valve for cutting off water stream channel, flow rate detection element is electrically connected with microprocessor, for the flow rate of water flow detected in real time is fed back to microprocessor; Microprocessor is electrically connected with electrically operated valve by driver, for have flow velocity at current and flow velocity continued for constant and reach setting-up time time control electrically operated valve cut off water stream channel; Power supply is electrically connected with microprocessor and electrically operated valve, for providing electric power for microprocessor and electrically operated valve; Flow rate detection element testing constant flow rate, leaks and judges to have nothing to do with flow rate of water flow, therefore also can sensitively judge for leaking of low discharge, the leakage inconspicuous of Timeliness coverage human eye, simple and reliable for structure, easy to make, with low cost;
(7) a kind of leak stop of the present invention, its flow rate detection element comprises is located at impeller in current and hall device, hall device is electrically connected with microprocessor, for detecting the rotating speed that impeller rotates with current, and the rotary speed information of impeller is fed back to microprocessor, utilize the rotating speed of the impeller rotated with current indirectly to reflect the flow condition of water outlet, reduce difficulty and the cost of flow rate detection;
(8) a kind of leak stop of the present invention, it also comprises button and pilot lamp, button and pilot lamp are electrically connected with microprocessor respectively, and button resets and user model switching for controlling electrically operated valve, and pilot lamp is for showing the duty of leak stop; Power supply, microprocessor, flow rate detection element, electrically operated valve, button and pilot lamp are all integrated in a shell, and shell has water inlet for access water lines and water delivering orifice; Leak stop can be made into independent product, is convenient to upgrade to the improvement of existing grid, water meter and water purifier etc., is convenient to promote the use of.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the detection method that a kind of fluid of the present invention leaks;
Fig. 2 is the process flow diagram of executive component reset and user model switch step in the detection method of a kind of fluid leakage of the present invention;
Fig. 3 is the system chart of a kind of leak stop of the present invention;
Fig. 4 is that the one of a kind of leak stop of the present invention specifically implements structural representation.
Label declaration in schematic diagram:
1, power supply; 2, microprocessor; 3, flow rate detection element; 31, impeller; 32, hall device; 4, driver; 5, electrically operated valve; 6, button; 7, pilot lamp; 8, shell.
Embodiment
Before detailed description content of the present invention, first brief description is done to the principle of institute of the present invention foundation:
It is considered herein that, in the use procedure of fluid, the flow velocity of fluid generally has different changes, and fluid withdraw from service situation (namely the flow velocity of fluid is zero), and when fluid occurs to leak, fluid can flow down with a constant flow velocity always.The detection method that a kind of fluid of the present invention leaks, realize convection cell according to this principle whether to leak and judge, the flow velocity of convection cell detects, if find that fluid has flow velocity and flow velocity continued for constant reach user's setting-up time, then can judge to leak.
For understanding content of the present invention further, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
The detection method that a kind of fluid of the present embodiment leaks, the flow velocity of test fluid, when fluid has flow velocity and flow velocity continued for constant reach setting-up time, is then judged as that fluid leaks.Adopt this detection method, the reliability that the flow velocity size of fluid and detection judge and correctness have nothing to do, this detection method can the fluid of Timeliness coverage a variety of causes and various state be leaked, sensing range is wide, safe and reliable, especially for the leakage of low discharge, also can effectively find and solve, the leak detection of water, oil and combustion gas etc. can be widely used in.Above-mentioned setting-up time is according to maximum normal setting service time of fluid, for with water, suppose that user is 20 minutes at the longest daily water time, then setting-up time can be set as 20 minutes, when current detected and flow rate of water flow constant and reach 20 minutes time, then be judged as leaking, perform and further operate; This setting-up time, based on the laws of use of fluid, can prevent the normal use affecting fluid.
Shown in composition graphs 1 and Fig. 3, the detection method of a kind of fluid leakage of the present embodiment, specifically comprises the following steps:
(a) flow rate detection: the flow velocity utilizing flow rate detection element Real-time Collection fluid, and the flow rate information of fluid is fed back to microprocessor carry out data processing and inversion;
(b) constant speed timing: when flow rate detection element testing has flow velocity (namely flow velocity is non-vanishing) to fluid, and the constant flow rate of fluid constant time, microprocessor starts timing, if during timing, the flow velocity of fluid changes, then microprocessor timing resets, because normally fluid may be being used at this moment, in order to not affect the normal use of fluid, prevent system misoperation, therefore this change in flow not reaching setting-up time is not considered to fluid leakage, and microprocessor can continue test fluid flow velocity;
C () is leaked and is judged: when the timing time of microprocessor reaches setting-up time, then illustrate that fluid has reached the time of user's setting with a constant flow velocity, because this time has exceeded the normal service time of fluid, therefore very likely occur leaking, now microprocessor judges is that fluid leaks;
(d) action executing: microprocessor judges is that after fluid leaks, Microprocessor S3C44B0X executive component closes the transfer passage of fluid, and anti-fluid continues to leak.The present embodiment utilizes microprocessor to realize data acquisition, analysis and control, intelligent automatic decision leakage situation, and closes the transfer passage of fluid in time, avoids fluid to continue to leak, reduces the wasting of resources, reduce property loss and accident risk.
Shown in Figure 2, the detection method of a kind of fluid leakage of the present embodiment, also comprise executive component to reset and user model switch step, this process completes by the button that is electrically connected with microprocessor, and this step can perform (as shown in the flowchart of fig.1) before judging the whether constant and timing of rate of flow of fluid, specific as follows:
(I) microprocessor detects the signal pressed with or without button in real time;
(II) if microprocessor detects the signal that button is pressed, then microprocessor calculates the duration that button is pressed;
(III) equals or exceeds t second when the duration that button is pressed, then Microprocessor S3C44B0X executive component resets, and recovers fluid and normally uses; Be no more than t second when the duration that button is pressed, then Microprocessor S3C44B0X user model changes.The duration t that above-mentioned button is pressed can be set to 3s.
In the present embodiment, utilize executive component reset operation, can fast quick-recovery fluid supply after leakage is got rid of, do not affect normal use, also can quick-recovery supply interruption of causing because exceeding the normal use of setting-up time soon, simple to operation.According to user habit, multiple user model can be set, select different user pattern according to the situation such as Different periods or season, use convenient; For the leak detection of daily water consumption, user model can be divided into following third gear: one grade: economizing type water, the longest 10 minutes lasting water time; Second gear: plain edition water, the longest 20 minutes lasting water time; Third gear: luxury water, the longest 30 minutes lasting water time; According to the longest lasting water time, setting-up time is divided into multiple grade, can gives user's multiple choices, certainly, setting-up time also can be arranged voluntarily by user and adjust, and also has applicability widely for different environment for use.In addition, after user model changes, can be shown by the pilot lamp of correspondence, make user know pattern residing at present more intuitively.
The detection method of a kind of fluid leakage of the present embodiment, data acquisition, the analysis and control of microprocessor realize by computer programming program, and its program circuit as depicted in figs. 1 and 2, specifically programs as prior art, just repeats no more at this.
Embodiment 2
This gives a kind of leak stop; the detection method that fluid in this leak stop Application Example 1 leaks; solve existing leak stop and cannot detect the technical barrier that low discharge leaks; and effectively can solve and forget closed tap and the problem of the water waste caused, domestic water pipeline, water meter and water purifier etc. can be widely used in.
Shown in concrete composition graphs 3 and Fig. 4, a kind of leak stop of the present embodiment, comprising power supply 1, microprocessor 2, being located at the flow rate detection element 3 in current and the electrically operated valve 5 for cutting off water stream channel, flow rate detection element 3 is electrically connected with microprocessor 2, for the flow rate of water flow detected in real time is fed back to microprocessor 2, microprocessor 2 pairs of flow rate of water flow carry out Treatment Analysis; Microprocessor 2 is electrically connected with electrically operated valve 5 by driver 4, for detect at microprocessor 2 current have flow velocity and flow velocity continued for constant and reach setting-up time time control electrically operated valve 5 cut off water stream channel; Above-mentioned judge constant flow rate whether reach setting-up time can by microprocessor 2 timer circuit timing realize; Power supply 1 is electrically connected with microprocessor 2 and electrically operated valve 5, for providing electric power for microprocessor 2 and electrically operated valve 5.A kind of leak stop of the present embodiment, flow rate detection element testing be constant flow rate, leak judge with flow rate of water flow size have nothing to do; therefore leaking of low discharge also can sensitively be judged, the leakage inconspicuous of Timeliness coverage human eye, simple and reliable for structure; easy to make, with low cost.In addition; a kind of leak stop of the present embodiment; also comprise button 6 and pilot lamp 7, button 6 and pilot lamp 7 are electrically connected with microprocessor 2 respectively, and button 6 resets and user model switching for controlling electrically operated valve 5; pilot lamp 7 is for showing the duty of leak stop; this duty is specifically as follows duty residing for electrically operated valve 5 and the display of corresponding user model, and such as electrically operated valve 5 is closed, and pilot lamp 7 sparkling is reminded; user model changes, corresponding pilot lamp 7 Chang Liang etc.
Because the flow velocity detected in the present embodiment is constant flow rate, therefore without the need to accurately measuring the size of flow velocity, only need to reflect that flow velocity has unchanged.Shown in hookup 4, flow rate detection element 3 in the present embodiment comprises is located at impeller 31 in current and hall device 32, hall device 32 is electrically connected with microprocessor 2, for detecting the rotating speed that impeller 31 rotates with current, and the rotary speed information of impeller 31 is fed back to microprocessor 2, utilize the rotating speed of the impeller 31 rotated with current indirectly to reflect the flow condition of water outlet, reduce difficulty and the cost of flow rate detection, and current detection is highly sensitive.
In addition, power supply 1 in the present embodiment can adopt direct current or AC power, electrically operated valve 5 can adopt solenoid valve, power supply 1 in the present embodiment, microprocessor 2, flow rate detection element 3, electrically operated valve 5, button 6 and pilot lamp 7 are all integrated in a shell 8, and shell 8 has water inlet for access water lines and water delivering orifice.Particularly, shell 8 can be divided into two cavitys, cavity be sealing without water cavity, another cavity is for there being water cavity, and power supply 1, microprocessor 2, button 6 and pilot lamp 7 can be located at without in water cavity, and flow rate detection element 3 and electrically operated valve 5 have been located in water cavity.Like this, leak stop can be made into independent product, is convenient to, to the transformation and upgrade of existing grid, water meter and water purifier etc., be convenient to promote the use of.By the water inlet of leak stop and water delivering orifice access grid; water inlet is connected with water source tube; water delivering orifice is connected with user's water nozzle; when there being current to flow; impeller 31 can rotate with current; the hall device 32 be installed in impeller 31 rotating shaft induces the rotation of impeller 31, thus is indirectly reflected by flow rate of water flow.
The detection method that a kind of fluid of the present invention leaks and the leak stop applying this detection method; when fluid has flow velocity and flow velocity continued for constant; and reach setting-up time; then be judged as leaking; the flow velocity size of fluid and the reliability of judgement, correctness have nothing to do, and this detection method can the fluid of Timeliness coverage a variety of causes and various state be leaked, safe and reliable; especially for the leakage of low discharge, also can effectively find and solve.Apply the leak stop of this detection method; solve existing leak stop and cannot detect the technical barrier that low discharge leaks; and effectively can solve and forget closed tap and the problem of the water waste caused, domestic water pipeline, water meter and water purifier etc. can be widely used in.
Below be schematically described the present invention and embodiment thereof, this description does not have restricted, and shown in accompanying drawing is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the invention aim, without creatively designing the frame mode similar to this technical scheme and embodiment, all should protection scope of the present invention be belonged to.
Claims (10)
1. a fluid detection method of leaking, is characterized in that: the flow velocity of test fluid, when fluid has flow velocity and flow velocity continued for constant reach setting-up time, is then judged as that fluid leaks.
2. the detection method of a kind of fluid leakage according to claim 1, is characterized in that: described setting-up time is according to maximum normal setting service time of fluid.
3. the detection method of a kind of fluid leakage according to claim 1 and 2, is characterized in that: specifically comprise the following steps:
(a) flow rate detection: the flow velocity utilizing flow rate detection element Real-time Collection fluid, and the flow rate information of fluid is fed back to microprocessor carry out data processing;
(b) constant speed timing: when flow rate detection element testing has flow velocity to fluid, and when the constant flow rate of fluid is constant, microprocessor starts timing, if during timing, the flow velocity of fluid changes, then microprocessor timing resets;
C () is leaked and is judged: when the timing time of microprocessor reaches setting-up time, be then judged as that fluid leaks;
(d) action executing: after being judged as that fluid leaks, Microprocessor S3C44B0X executive component closes the transfer passage of fluid.
4. the detection method of a kind of fluid leakage according to claim 3, is characterized in that: also comprise executive component and reset and user model switch step, specific as follows:
(I) microprocessor detects the signal pressed with or without button in real time;
(II) if microprocessor detects the signal that button is pressed, then microprocessor calculates the duration that button is pressed;
(III) equals or exceeds t second when the duration that button is pressed, then Microprocessor S3C44B0X executive component resets; Be no more than t second when the duration that button is pressed, then Microprocessor S3C44B0X user model changes.
5. the detection method of a kind of fluid leakage according to claim 4, is characterized in that: the duration t=3s that described button is pressed.
6. a leak stop, is characterized in that: this leak stop application rights requires the detection method that the fluid described in 1 to 5 any one leaks.
7. a kind of leak stop according to claim 6, it is characterized in that: comprising power supply (1), microprocessor (2), being located at the flow rate detection element (3) in current and the electrically operated valve (5) for cutting off water stream channel, described flow rate detection element (3) is electrically connected with microprocessor (2), for the flow rate of water flow detected in real time is fed back to microprocessor (2); Described microprocessor (2) is electrically connected with electrically operated valve (5) by driver (4), for have flow velocity at current and flow velocity continued for constant and reach setting-up time time control electrically operated valve (5) cut off water stream channel; Described power supply (1) is electrically connected with microprocessor (2) and electrically operated valve (5), for providing electric power for microprocessor (2) and electrically operated valve (5).
8. a kind of leak stop according to claim 7; it is characterized in that: described flow rate detection element (3) comprises is located at impeller (31) in current and hall device (32); described hall device (32) is electrically connected with microprocessor (2); for detecting the rotating speed that impeller (31) rotates with current, and the rotary speed information of impeller (31) is fed back to microprocessor (2).
9. a kind of leak stop according to claim 7 or 8; it is characterized in that: also comprise button (6) and pilot lamp (7); described button (6) and pilot lamp (7) are electrically connected with microprocessor (2) respectively; described button (6) resets and user model switching for controlling electrically operated valve (5), and described pilot lamp (7) is for showing the duty of leak stop.
10. a kind of leak stop according to claim 9; it is characterized in that: described power supply (1), microprocessor (2), flow rate detection element (3), electrically operated valve (5), button (6) and pilot lamp (7) are all integrated in a shell (8), described shell (8) has water inlet for access water lines and water delivering orifice.
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| CN107387843A (en) * | 2017-07-04 | 2017-11-24 | 常州机电职业技术学院 | Water saving device and water saving method thereof |
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| CN107387843A (en) * | 2017-07-04 | 2017-11-24 | 常州机电职业技术学院 | Water saving device and water saving method thereof |
| CN110686738A (en) * | 2018-07-05 | 2020-01-14 | 卡姆鲁普股份有限公司 | Water meter with water management capability |
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| CN113390583A (en) * | 2021-06-18 | 2021-09-14 | 谷泽竑 | Water leakage detection method for water meter, water supply system and application method |
| CN113390583B (en) * | 2021-06-18 | 2024-02-09 | 谷泽竑 | Water leakage detection method for water meter, water supply system and application method |
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