| 摘要 |
<p>PURPOSE:To permit to retrieve waste heat without consuming electric power by exchanging heat arbitrarily between a hot-water reserving tank and a bathtub. CONSTITUTION:When first three-way valve 19 is opened to a side connecting a liquid reserving tank 10 to second heat exchanger 3 and the second three-way valve 24 is opened to a side connecting a branch pipe 25, the waste heat in the bathtub 4 is retrieved by the third heat exchanger 5 and is accumulated in a low temperature portion at the lower part of the hot-water reserving tank 1 by dissipating it through the second heat exchanger 3. Operating liquid 11 circulates through the liquid reserving tank 10, third sending pipe 22, the third heat exchanger 5, third return pipe 23 and a branch pipe 24 and also circulates through the liquid reserving tank 10, first sending pipe 17, second sending pipe 21, the second heat exchanger 3, second return pipe 20, a liquid chamber 14, a return pipe 27 and a non-return valve 26, therefore, the transfer of heat may be effected without consuming external energy such as the electric power or the like.</p> |
