| 摘要 |
PROBLEM TO BE SOLVED: To provide a water leak detection device and a method of a water supply system capable of detecting simultaneously generation of water leak at the earthquake generation time, and coping quickly with the water leak. SOLUTION: This device is constituted of a flowmeter 4 and an emergency shutdown valve 5 installed on a water supply pipe 3, a seismo-sensor 6 installed in a building, a detection device 8 for detecting the water leak by receiving an output from the flowmeter 4 and the seismo-sensor 6, and a shutdown control device 7 for controlling the emergency shutdown valve 5 by the output from the detection device 8. When determined as the water leak by the detection device 8, a valve shut signal is outputted from the shutdown control device 7 to the emergency shutdown valve 5, and the water supply pipe is shut down. COPYRIGHT: (C)2005,JPO&NCIPI
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