| abstract |
(57) [Summary] [PROBLEMS] To reduce the size, control the pressure of the water supply tank of each level equally, and suppress the rapid fluctuation of the water pressure. Provide a high-altitude water distribution system. SOLUTION: A plurality of water supply tanks 2 arranged in a hierarchy. a, 2b,..., the lowermost water supply tank 2 in the connecting pipe line 4 A water supply pump 6 and a check valve 5 are provided in a connection pipe line 4 between the water supply pipe 1 and the water supply pipe 1, a damper 9 having an air chamber 8 is provided in the water supply tanks 2a, 2b,. Is detected, and the operation of the water supply pump 6 is controlled according to the water pressure. Thereby, the water pressures of all the water supply tanks 2a, 2b,... Are equalized, and the fluctuation of the water pressure of the water supply tanks 2a, 2b,. Thus, even if the water pressure fluctuates greatly, the water supply pump 6 does not repeatedly stop driving, so that it is possible to accurately and easily control the water pressure. |