Patent ID: 9016083
Filing Date: 2015-04-28
Classification: F24D,F25B

Abstract:
1. An air refrigerant type freezing and heating apparatus comprising: a compressing mechanism which compresses an air refrigerant; a first heating unit which heats a first object by said air refrigerant outputted from said compressing mechanism; a first heat exchanger which cools said air refrigerant outputted from said first heating unit; a turbine which expands said air refrigerant outputted from said first heat exchanger; a cooler which cools a second object different from said first object by said air refrigerant outputted from said turbine; a heater which heats said air refrigerant flowing in said first heating unit; and a heat recovery unit which recovers heat of said air refrigerant outputted from said first heating unit and heats said air refrigerant flowing from said compressing mechanism to said first heating unit, wherein said heat recovery unit comprises: