| 摘要 |
PCT No. PCT/US96/15483 Sec. 371 Date Dec. 20, 1996 Sec. 102(e) Date Dec. 20, 1996 PCT Filed Sep. 27, 1996 PCT Pub. No. WO98/13654 PCT Pub. Date Apr. 2, 1998A purge processor for purging air and other noncondensibles from refrigeration systems or refrigeration handling systems includes: an inlet gas connector for receiving a gaseous mixture of noncondensibles and refrigerant; a first and second refrigerant receiver; a compressor; a condenser; and a differential pressure switch connected to a solenoid valve for automatically purging a predetermined percentage by volume of refrigerant. For low pressure refrigerant, a back pressure regulator maintains the second refrigerant receiver at a colder temperature than the first. For high pressure refrigerant, an additional compressor and condenser maintains the second refrigerant receiver at a colder temperature than the first. The present invention can continuously separate refrigerant and automatically purge an exhaust known to have less than 1% by volume of refrigerant.
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