| 摘要 |
PURPOSE:To reduce registance against the flow of mixed water in a mixing section by a method wherein a flow rate detecting means having the function of agitating the mixed water is provided between a mixing valve and a temperature detecting means arranged on the downstream side of the valve in the hot water feeder which is adopted to feed hot water by mixing high temperature water and ordinary temperature water to a desired set temperature. CONSTITUTION:When a faucet 109 is opened after setting the required temperature by a setting knob, an impeller 13 having a magnet 112 fixed thereto begins to rotate and the rotation of the impeller is detected by a magnetic detecting element 114. At the same time, a burner 117 begins to burn and the high temperature water from a hot water pipe 106 and the ordinary temperature water from a feed water pipe 103 flow into the mixing valve 105 so that both waters are mixed and supplied. When the mixed water flows out from the mixing valve and passes an impeller type flow rate switch 111, it is further mixed uniformly by the rotation of the impeller 113. When the mixed water is supplied, the temperature sensor 110 detects the temperature of the mixed water at all times and when the temperature of the mixed water is lower than the value value set by the setting knob, a motor 107 is operated so as to increase the flow rate ratio of the hot water temperature flowing into the mixing valve 105 from a hot water pipe 116, to thereby increase the temperature of the mixed water. On the other hand, when the condition is reversed, the motor 107 is operated so as to reduce the flow rate ratio of the high temperature water to the mixing valve 105 from the pipe 116, to thereby lower the temperature of the mixed water to be supplied and as a result, the mixed water is always supplied at a desired temperature. |
