A water pipe burst and water leakage alarm device
An alarm device and water pipe technology, applied in pipeline systems, gas/liquid distribution and storage, mechanical equipment, etc., can solve problems such as failure to automatically block water flow in time, low voltage, and inability to trigger alarms.
Inactive Publication Date: 2020-08-25
HANGZHOU DIANZI UNIV
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Problems solved by technology
The utility model CN201621365172.X proposes a reminder device for water pipe burst by using a water flow generator to generate electricity. , the alarm cannot be triggered
Method used
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[0014] The present invention will be further described below in conjunction with accompanying drawing.
[0015] like figure 1 As shown, a water pipe burst and water leakage alarm device includes a micro flow generator 1, a solenoid valve 2, a 12V voltage regulator 3, an overvoltage judging unit 4, a duration judging unit 5, a 12V DC power supply unit 6, an audible and visual alarm Control unit 7, relay 8, wireless alarm signal sending unit 9, 220 / 24V AC isolation step-down transformer 10.
[0016] The micro-current generator 1 is installed on the water pipe behind the household water meter, and the solenoid valve 2 is installed on the water pipe behind the micro-current generator.
[0017] The input end of the 12V voltage stabilizer 3, the input end of the overvoltage judging unit 4, and the input end of the duration judging unit 5 are connected in parallel to the output end of the micro-current generator.
[0018] The positive output terminal of the 12V voltage stabilizer 3...
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The invention relates to a water pipe burst and water leakage alarm device. The device comprises a miniature water flow generator, an electromagnetic valve, a 12V voltage regulator, an overvoltage judgment unit, a duration judgment unit, a 12V direct-current power supply unit, a sound-light alarm control unit, a relay, a wireless alarm signal sending unit, and a 220 / 24V alternating-current isolation step-down transformer, wherein the miniature water flow generator and the electromagnetic valve are installed on a water pipe behind an inlet water meter; the 12V voltage regulator, the overvoltagejudgment unit and the duration judgment unit are connected on the miniature water flow generator in parallel; the overvoltage judgment unit and the duration judgment unit are connected with the sound-light alarm control unit and the relay respectively; and the power input end of the relay is connected with a mains supply, and the power output end of the relay is connected with the electromagneticvalve through the 220 / 24V alternating-current isolation step-down transformer. According to the water pipe burst and water leakage alarm device, an alarm can be given for water pipe burst, and an alarm can be given for continuous small-flow water leakage; and when the mains supply fails, an alarm circuit can still work normally once the water pipe burst or leaks water.
Description
technical field [0001] The invention belongs to the technical field of automatic control, and in particular relates to a water pipe burst and water leakage alarm device. Background technique [0002] Water pipe bursts and long-term water leakage often cause huge economic losses to citizens, and sometimes even cause personal injury accidents. Therefore, it is very important to detect the state of the water pipes in the home and find out whether the water pipes burst or leak in time. Invention patent CN201811170970.0 proposes a water pipe burst alarm, which can detect whether the water pipe has burst by detecting whether there is water on the ground through the water immersion sensor, or judge whether the water pipe has burst by sensing the sudden change of the water pressure in the water pipe through the water pressure sensor. The former requires the ground to be flooded to a certain extent, and the water sensor will trigger an alarm, while the latter is not sensitive to lon...
Claims
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IPC IPC(8): F17D5/06
CPCF17D5/06
Inventor 季振国李阳阳席俊华
Owner HANGZHOU DIANZI UNIV