REFRIGERATION CYCLE DEVICE AND METHOD FOR CONTROLLING THE SAME

PROBLEM TO BE SOLVED: To prevent a drastic increase in a temperature difference between a scroll center and a circumference edge while increasing a starting speed of a scroll compressor.SOLUTION: A refrigeration cycle device is provided, including a scroll type compressor (10) compressing and discha...

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Bibliographische Detailangaben
1. Verfasser:	OYA NAOHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To prevent a drastic increase in a temperature difference between a scroll center and a circumference edge while increasing a starting speed of a scroll compressor.SOLUTION: A refrigeration cycle device is provided, including a scroll type compressor (10) compressing and discharging a refrigerant, a water-refrigerant heat exchanger (20), an expansion valve (30) with a controllable opening, and an air-refrigerant heat exchanger (40). A first temperature sensor (51, 53) detects a temperature corresponding to the temperature in the scroll center, while a second temperature sensor (52, 54) detects a temperature corresponding to the temperature in a circumference edge of the scroll. A control part (60) controls the opening of the expansion valve to prevent a temperature difference between the scroll center and the circumference edge of the scroll perimeter from exceeding a reference value.