摘要 |
<p>PROBLEM TO BE SOLVED: To hold a definite temperature of supply hot water constantly irrespective of the intensity and time of sunshine by performing exchange between a heat storage material stored in a heat regenerator and hot water from a hot water storage tank and supplying the hot water to a faucet. SOLUTION: A heat storage material, a heat exchanger 12 and a dispersing plate 18 are provided in a heat storage tank 11 which from an outer shell of a heat storage type heat exchanger 10. A boiler 15 heats a heat storage material of the heat storage type heat exchanger 10 to a proper hot water supply temperature (for example, 50 to 55 deg.C). In the case in which the temperature of the hot water storage tank 4 rises to about 50 deg.C, the hot water is guided to a hot water supply pipeline 19 by way of a heat exchanger 12 of the heat storage type heat exchanger 10 from the hot water storage tank by way of a hot water supply take-out pipeline 9. Since the temperature between the heat storage material and hot supply water is substantially balanced, the hot water can be supplied without heat exchange. In the case when the sunshine is intensified and the temperature in the hot water storage tank 4 is raised to around 70 deg.C by heat collection, the heat is given to the heat storage material and the temperature is lowered to the hot water supply temperature and supplied. On one hand, when the sunshine is weak, the temperature in the hot water storage tank 4 remains around 30 deg.C, the hot water is heated with the heat storage type heat exchanger 12 and supplied at a specified temperature.</p> |