| 摘要 |
PURPOSE:To provide an energy-saving solar heat pump device by assigning a refrigerant pump set in the liquid phase to circulate the refrigerant in the refrigerating cycle during time in which sunshine is available. CONSTITUTION:During the air heat source operating mode, a compressor 1 and a blower 9 are operated. At this time, a solenoid valve 11 remains closed. The refrigerant gas out of the compressor 1 turns into the liquid as it release the latent heat of condensation in a condensor 2, and, after being gathered in a liquid storage 14, is transfered to an expansion valve 3 via a check valve 12. The refrigerant is decompressed therein to enter into a vaporizer 8 of a collector 4 to take the heat away from the outside air fed into an air draft passage in a casing 7 by the blower 9 to be returned to the compressor 1 as it has vaporized. During the solar heat source operating mode, the solenoid valve 11 remains opened, and the compressor 1 and the blower 9 remains inoperative. The refrigerant in the liquid form out of a circulation pump 10 is vaporized by the solar heat in the vaporizer 8 of the collector 8. The refrigerant gas passes through the check valve 13 and bypasses the compressor 1. It is liquefied by the condensor 2, and, after being gathered in the liquid storage 14, is again taken into the circulation pump 10 through the solenoid valve 11. |
