| 摘要 |
<p>PURPOSE:To always secure a set temperature for hot water and to improve the efficiency of a hot water supply system by mixing selectively the hot water and water at the side of an auxiliary heat source after detecting the temperature of hot water at the side of a main heat source. CONSTITUTION:A main heat source uses a heat collector A utilizing solar energy and a regenerative tank B. The temperature of the hot water of the main heat source is detected TS, and at the same time the temperature of the hot water is detected TM on a hot water supply path 14. These detected temperature are supplied to a controller 16 together with a desired set temperature of hot water, and the hot water or water is selectively supplied from an auxiliary heat source C based on the hot water temperature of the controller 16. Then the hot water of a desired temperature is supplied to the path 14. In the case of the selective mixture of hot water and water, the hot water of the source C is supplied when the hot water temperature of the main heat source is lower than the set temperature. While the water F is supplied vice versa via a changeover valve SV3. In this case, changeover valves SV1-SV3 are controlled by a controller 16 to carry out the mixture of hot water and water as shown by the dotted line arrows (mixture with the hot water of the source C) and solid line arrows (mixture with water), respectively.</p> |
