| 摘要 |
PURPOSE:To eliminate the need for a circulating pump and the trouble of freezing and at the same time enable to effectively collect the solar heat by a method wherein the cycle in which a collector is emptied by letting the water in the collector fall in a hot water storage tank when the temperature of the absorber plate in the collector reaches the second temperature or the temperature a little lower than the first temperature, is repeated. CONSTITUTION:When a temperature sensor T, for example, detects the predetermined temperature beyond 100 deg.C of a collector 1 produced by the solar heat, the signal issued from the sensor T is sent to a controller 17 in order to make the city water in a cistern 12 enter a piping unit in high temperature state, resulting in rapidly generating steam and consequently raising the internal pressure of the piping unit so as to jet high temperature steam through a nozzle 7 into the hot water in a hot water storage tank 2 for heating it. When the temperature of an absorber plate in the collector 1 lowers below the predetermined temperature to below 100 deg.C, the sensor T issues the signal so as to actuate the controller 17 in order to let the hot water in the collector 1 fall in the hot water storage tank 2. The above-mentioned cycle is repeated, resulting in enabling to obtain the hot water with nearly the constant temperature throughout the year. |
