The method refrigerant recovery apparatus and refrigerant recovery

PROBLEM TO BE SOLVED: To provide a refrigerant recovery device that can reduce deterioration of a situation that might occur at recovery of a combustible refrigerant and can continuously recover the refrigerant.SOLUTION: A refrigerant recovery device includes: a gas liquid separation container 14 to which mixed fluid of a refrigerant and refrigeration machine oil is supplied in the vacuum state and that separates the refrigeration machine oil and the refrigerant from each other; a compressor 18 for recovering and compressing the separated refrigerant; a heat exchange device 100 for cooling the compressed refrigerant to liquefy it; a refrigerant storage container 111 for storing the liquefied refrigerant; a refrigeration machine oil discharge port 16 capable of discharging the refrigeration machine oil from which at least part of the refrigerant is separated to outside of the gas liquid separation container 14; a dry air supply section for sending dry air into the gas liquid separation container 14 and discharging the refrigeration machine oil from which at least part of the refrigerant is separated to outside of the gas liquid separation container 14 via the refrigeration machine oil discharge port 16; and a vacuum pump 17 for discharging the dry air in the gas liquid separation container 14 to cause inside of the gas liquid separation container 14 to become a vacuum state.SELECTED DRAWING: Figure 1