| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a refrigerant recovery method that can recover the refrigerant of recovery target equipment in a short period of time. <P>SOLUTION: The refrigerant recovery method includes: a container cooling step of making phase change into a liquid refrigerant by a condenser 5 after taking a gas refrigerant filled in a recovery container 3 in advance in a compressor 4 and compressing the gas refrigerant, reducing the pressure by a first capillary tube 6 to lower the temperature, and taking the low temperature refrigerant in to cool the recovery container 3; and a direct liquid recovery step of bypassing the liquid refrigerant of recovery target equipment 2 from a refrigerant recovery port M1 to a high-pressure system circuit P2 via a low pressure system circuit P1 while the compressor 4 and a cooling fan 52 are stopped, and directly recovering the refrigerant in the recovery container 3 by utilizing a pressure difference between the recovery target equipment 2 and recovery container 3. <P>COPYRIGHT: (C)2013,JPO&INPIT |
