Method and apparatus for integrating a supplemental heat source with staged compressors in a heat pump

摘要

Apparatus and a method for operating a series compression refrigeration circuit with supplemental heating means are disclosed. The supplemental heat source is arranged to supply heat energy to the refrigerant being supplied to the high stage compressor suction line. A quench conduit is provided for effectively regulating the temperature of the refrigerant entering the high stage compressor. This arrangement allows for the simultaneous heating of the refrigerant for supplying supplemental heat energy and for continued utilization of the outdoor heat exchanger for absorbing heat energy from the outdoor ambient air for transfer to a space to be conditioned.