| 摘要 |
PURPOSE:To enhance the heating function of a refrigerating cycle heat- exchanging mechanism for marine cooling devices, by dividing a radiator into two sections so that a heat-exchanger is held therebetween within a box in which external cooling water is forced to circulate. CONSTITUTION:During heating coolant discharged from a coolant compressor 3 circulates through a first heat-exchanger 24, a check valve, a receiving container 8, a super cooler 9, a dryer 10 and an expansion valve 12 and then by way of a second heat-exchanger 7, and returns into the compressor 3. During this circulation the coolant raises temperature of air blown out from a blower 25 for heating, and absorbs heat stored in sea water fed from a pump 38 so that it expands and again returns into the second heat-exchanger 7 to carry out heat-exchange with the sea water. During this period the sea water fed from the pump 28 enters into a box 5 through an inlet port 22, in which the sea water makes in contact with a first circulating section of a radiator 16 and a heat exchanger 7, successively, for heat-exchanging them, respectively. With this arrangement, it is possible to increase the amount of gaseous phase coolant, and therefore, the performance of the cooling may be enhanced. |
