Heat pump for warm water heater, has refrigerant storage provided behind refrigerant evaporator, where refrigerant steam leaving refrigerant evaporator is in phase contact with liquid refrigerant provided in refrigerant storage

摘要

The pump has a refrigerant circuit comprising a refrigeration compressor (1), a refrigerant condenser (2) and a refrigerant evaporator (6). A pressure control valve (4) and a gauge (3) maintain constant pressure in the refrigerant condenser, where pressure in the refrigerant evaporator is adjusted in an independent manner. A refrigerant storage (7) is provided behind the refrigerant evaporator in a flow direction, where refrigerant steam leaving the refrigerant evaporator is in phase contact with liquid refrigerant provided in the refrigerant storage. An independent claim is also included for a method for operating a heat pump of a warm water heater.