| 摘要 |
<p>PROBLEM TO BE SOLVED: To reuse waste energy and save energy by recovering heat discharged outside from a range hood by a heat exchanger and heating the water fed from a city water and using it for other existent equipment. SOLUTION: When the control means 25 of a washer 9 enters an automatic washing mode, a water feed stop valve 24 opens and water fed from a water feed pipe 17 is heat-exchanged with an exhaust gas flowing in an exhaust passage 11 in the heat exchanger 15 of a range hood 8, heated and enters a hot water supply pipe 20. Then, hot water is stored in the washing tank 26 of the washer 19 through the water feed stop valve 24. The exhaust gas is sucked to the exhaust passage 11 from the indoor air feed port 9 of the range hood 8 by an exhaust air blower 12 and reaches a heat exchanger 15. Then, the heat of the exhaust gas is taken by water flowing through the heat exchanger 15 and the exhaust gas is exhausted outside 14 from the indoor discharge port 10 of the exhaust passage 11. In this way, heat energy exhausted outside 14 from the range hood 8 can be recovered and reused as hot water so that energy can be saved.</p> |
