| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem, in a conventional waterfall type solar hot water heating device, that a hot water-water mixing faucet cannot be used for mixing hot water in a hot water storage tank with water to obtain proper temperature when a user uses the hot water. <P>SOLUTION: In the waterfall type solar hot water heating device 1, an upper connection port 31 is provided at an upper part of a hot water storage tank 30, a lower connection port 32 is provided on a lower part of the hot water storage tank 30, a flow path is formed which connects the lower connection port 32 to a collector 20 via a pump 41 during water pumping from the hot water storage tank 30 to the collector 20, and a flow path switching means is included by which a flow path is formed which connects the collector 20 to the upper connection port 31 during water-falling from the collector 20 to the hot water storage tank 30, and a flow path is formed through which hot water in the hot water storage tank 30 is taken out from the upper connection port 31 via the pump 41 during supply of hot water when clean water is used for supplying hot water by exchanging heat with hot water in the hot water storage tank 30, is passed through a primary side 51 of the heat exchanger 50, and is returned to the lower connection port 32 of the hot water storage tank 30. <P>COPYRIGHT: (C)2012,JPO&INPIT |
