| 摘要 |
PROBLEM TO BE SOLVED: To provide a water tank system capable of surely securing water after the occurrence of an earthquake. SOLUTION: The water tank system comprises a water tank 3, to which piping P2 is connected, for supplying stored water to a service destination through the piping P2; a pump 2 for supplying water to the water tank 3; a shut-off valve 4 controlling the quantity of water flowing from the water tank 3 to the piping P2; a water level sensor 3a detecting the full water state of the water tank 3; an earthquake information acquiring part 5 for acquiring earthquake information generated by detecting preliminary tremors; and a control part 1 for controlling the operation of the pump 2 and shut-off valve 4. The control part 1 has, as operation modes, a normal control mode of operating when earthquake information is not acquired by the earthquake information acquiring part 5, and a full water control mode of operating when earthquake information is acquired by the earthquake information acquiring part 5. In the full water control mode, the shut-off valve 4 is controlled to intercept water flowing from the water tank 3 to the piping P2, and the pump 2 is operated to supply water to the water tank 3. When the water level sensor 3a detects a full water state, the operation of the pump 2 is stopped. COPYRIGHT: (C)2009,JPO&INPIT
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