| 摘要 |
<p>PURPOSE:To realize efficient hot water supply even when the outside temperature is low by a method wherein a heat medium circuit and a water circuit are provided and the radiator of the heat medium circuit transfer its heat to the main heat transfer section of the water circuit and at the same time the heat absorber of the heat medium circuit is heated at the heating section of the water circuit. CONSTITUTION:The heat medium forms a refrigerating cycle comprising being discharged from a compressor 13 and then past through a radiator 14 and further past through an expander 15 and a heat absorber 17 successively and sent back to the compressor 13. On the other hand, water forms a water cycle comprising being sucked up from a hot water storage tank 10 by means of a pump 18 and then past through the radiator 14 and further past through a heater 19 and sent back to the hot water storage tank 10. Under the conditions as mentioned above, heat is transfered from the outside air to the heat medium at the heat absorber 17, while heat is transfered from the heat medium to the water at the main heat exchange section 12a. Consequently, the water is heated to high temperature by passing through the radiator 14 and, after giving a part of its heat to the absorber 17, stored in the hot water storage tank 10.</p> |
