| 摘要 |
PURPOSE:To improve the heat collecting efficiency of a solar heat collector by exchanging directly the heat of refrigerant of an evaporator for a heat pump for the heat of circulating liquid in a circulating path for collecting solar heat. CONSTITUTION:The high-temperature circulating liquid, flowed out of the heat collector 2, releases the heat thereof directly to hot-water in a hot-water reserving tank 1 through a heat exchanger 15 in the tank 1 and becomes low temperature by providing the refrigerant of the heat pump 16 with the heat thereof through the evaporator 17, thereafaer, returns to the heat collector 2 again. Therefore, high-temperature hot-water may be obtained in the upper part of the tank 1. In this case, a condenser 18, the heat exchanger 15 and the evaporator 17 are located at the upper part, middle part and the lower part of the tank 1 respectively, therefore, layers are readily formed in accordance with the difference of temperatures and the supply of high-temperature hot-water may be obtained stably. The heat of circulating liquid of the heat collector 2 is exchanged directly with the heat of refrigerant of the heat pump 16 through the evaporator 17 and whereby the temperature decrease of the circulating liquid is large. Accordingly, heat is collected in the heat collector 2 at a low temperature and the heat collecting efficiency may be improved. |
