| 摘要 |
PURPOSE:To restrain temperature increasing of a compressor itself and improve heat exchanging efficiency with regard to the refrigeration cycle by a method wherein heat exchanger other than a heat exchanger in which cold water is heated, is provided in a hot-water supplier and refrigerant gas discharged out of a compressor is passed through this heat exchanger to be introduced to the compressor again. CONSTITUTION:The refrigerant gas under high temperature condition discharged from the compressor cylinder chamber through a discharge valve 7 radiates for cold water at the first step condensation heat exchanger 10 and becomes low temperature condition, thereafter, it returns to the compressor 1 and effects the cooling for the electric motor located the inside of the compressor 1 and the other machine parts. The refrigerant gas of the high temperature absorbed the heat radiated from the respective parts at the compressor 1 is exchanged the heat with the cold water 9 to condense in the hot-water supplier 2 at the second step condensation heat exchanger 3, thereafter, it is introduced to a decompression device and becomes the refrigerant gas having the low temperature and the low pressure, further, it may be absorbed by a condenser 5 to return to the compressor 1. |
