| 摘要 |
PURPOSE:To constitute the hot-water supplier utilizing solar heat, capable of supplying high-temperature heat medium by reheating it by an auxiliary heat source machine in case the heat source is insufficient by utilizing the solar heat only by a method wherein a control unit, for controlling the operations of a switching valve for mixing and a flow path switching valve by detecting the temperature of the heat medium in a hot- water reserving tank, is provided in the device. CONSTITUTION:In case hot-water supplying temperature TH is higher than a set temperature TS, the flow path switching valve 26 opens a path (d)-(h) and closes the path (d)-(e) while the switching valve 24 for mixing is switched to a mixing mode I . In this case, the path (a)-(c) of the first switching valve 24 for mixing is closed gradually and the path (b)-(c) of the same valve is opened to regulate the temperature of hot-water to the set temperature TS to discharge the hot-water. In case the hot-water supplying temperature TH is lower than the set temperature TS, the siwtching valve 24 is switched to the mixing mode II and the flow path switching valve 26 closes the path (d)-(f) and opens the path (d)-(e). In this case, the temperature of feeding water for the auxiliary heat source machine 12 is regulated by the switching valve 24 to the upper limit temperature TA and the temperature of the heat medium C is increased by the auxiliary heat source machine 12 to discharge it. |
