| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hot water supply system capable of responding to unpredictable disturbance factors and minimizing rise in the temperature of supplied hot water. <P>SOLUTION: The hot water supply system 1 is provided with a hot water storage tank 2 for storing supplied water and hot water; a heating source 3 for heating water sent out from a bottom part of the hot water storage tank 2; a high temperature hot water supply piping 52a serving as hot water supply piping for supplying high temperature hot water stored in the hot water supply tank 2; a mixing valve 6e for mixing hot water from the high temperature hot water supply piping 52a or medium temperature hot water supply piping 52b serving as hot water supply piping with water from a water supply pipe 5; a mixed hot water sending piping 54 connected to the mixing valve 6e and sending mixed hot water; a temperature sensor 8 arranged in the mixed hot water sending piping 54 and measuring the temperature of the mixed hot water; and a control part 4 acquiring information from the temperature sensor 8 and controlling the mixing valve 6e. The control part 4 performs control so as to drive the mixing valve 6e to a direction to raise a mixing ratio of water until decline speed of the hot water temperature becomes a predetermined value, when the temperature of the mixed hot water is increased by a predetermined value. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
