REFRIGERANT RECOVERY MACHINE CORRESPONDING TO REFRIGERATOR AND METHOD FOR RECOVERING REFRIGERANT

摘要

PURPOSE: To prevent different refrigerant from being mixed into recovered refrigerant only by exchanging recovery tanks, wherein the recovered gaseous refrigerant is prevented from leaking into the atmosphere. ;CONSTITUTION: A compressor 1 is operated to draw refrigerant from a connecting part 8a through a suction pipe 9a thereby delivering it into a delivery pipe 5a. The delivered refrigerant is passed through the pipe 5a to be cooled and liquefied at a condenser 2 and passed through a pipe 5b into a liquid recovery vessel 4a, where it is recovered. Thereafter, the compressor 1 is stopped and an on/off valve 16 provided in the pipe 9a is closed and a channel switching valve 17 provided in the pipe 5b is changed over so as to communicate with a branch pipe 18 connected to a gas recovery vessel 19 so that high pressure gaseous refrigerant remaining in the pipe 5a, condenser 2, and pipe 5b is led into the vessel 19 so as to be adsorbed on adsorbents 20 loaded in the vessel 19, thereby recovering it.;COPYRIGHT: (C)1995,JPO