REFRIGERANT RECYCLE AND RECLAIM SYSTEM

摘要

A refrigerant recycle and reclaim system includes two liquid refrigerant receivers (40, 42); a low (30) and a high (34) pressure compressor in fluid communication with each other, each having their own oil separator (32, 36); a condenser (28); filter driers (14, 50); a particular arrangement of check and block valves (44, 46) and a high pressure float (48) proximate the receivers; suction gas cooling components; and auxiliary devices. The suction gas cooling components include an expansion valve (18), a filter drier (20), a solenoid valve (22), and a mixer with sensor (24). The auxiliary devices include level switches (58, 62), relief valves (60, 64), purity sensors (76-80), and solenoids (301-308). The check and block valves, in combination with the high pressure float, automatically select which liquid receiver the refrigerant will therein be contained. The cooling components serve to lower the temperature of heat-intensive suction gases before entering into the low pressure compressor. The auxiliary devices help serve to continuously recycle refrigerants up to 275 PSIG.