REFRIGERANT LOADING METHOD FOR REFRIGERATION DEVICE USING CARBON DIOXIDE AS REFRIGERANT

When a refrigeration device in which CO 2 is used as a refrigerant is to be charged with a refrigerant, the time required for charging and the time that elapses after charging until operation can recommence can be reduced. A refrigerant charging method for an air conditioning device (10) in which ca...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUOKA, Hiromune, KURIHARA, Toshiyuki
Format:	Patent
Sprache:	eng ; fre ; ger
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:	When a refrigeration device in which CO 2 is used as a refrigerant is to be charged with a refrigerant, the time required for charging and the time that elapses after charging until operation can recommence can be reduced. A refrigerant charging method for an air conditioning device (10) in which carbon dioxide is used as a refrigerant comprises a connecting step and a refrigerant charging step. In the connecting step, a cylinder (81) containing the refrigerant is connected to a space in the air conditioning device 10 intended to be charged by the refrigerant, a heater (83) being interposed therebetween. In the refrigerant charging step, the refrigerant is moved to the intended charging space from the cylinder (81), via the heater (83). In the refrigerant charging step, further, the refrigerant that has exited the cylinder (81) is heated by the heater (83) so that a specific enthalpy of the refrigerant when it enters the intended charging space will be 430 kJ/kg or higher.