Heat pump type water heating apparatus

A heat pump type water heating apparatus is disclosed. The water heating apparatus includes a refrigeration cycle circuit (2) including a compressor (12), a dual heat exchanger (14), an expansion device (16), and an outdoor heat exchanger (18), via which a first refrigerant is circulated, the dual h...

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Bibliographische Detailangaben
Hauptverfasser:	Ha, Jongchul, Lee, Donghyuk
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS DOMESTIC HOT-WATER SUPPLY SYSTEMS DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATINGSYSTEMS ELEMENTS OR COMPONENTS THEREFOR FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING RANGES REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	A heat pump type water heating apparatus is disclosed. The water heating apparatus includes a refrigeration cycle circuit (2) including a compressor (12), a dual heat exchanger (14), an expansion device (16), and an outdoor heat exchanger (18), via which a first refrigerant is circulated, the dual heat exchanger (14) including a first refrigerant and water heat exchanger (40) and a first refrigerant and second refrigerant heat exchanger (50), a cascade compressor (82) to compress the second refrigerant having passed through the first refrigerant and second refrigerant heat exchanger (50), a second refrigerant and water heat exchanger (84) to perform heat exchange between the second refrigerant compressed by the cascade compressor (82) and water, a cascade expansion device (86) to expand the second refrigerant having passed through the second refrigerant and water heat exchanger (84), and a water heating channel (8) connected to the first refrigerant and water heat exchanger (40) and the second refrigerant and water heat exchanger (84).