Automatic purge supplement after chamber with adsorbent

Details Automatic purge supplement after chamber with adsorbent Automatic purge supplement after chamber with adsorbent

1995-02-13

1996-05-14

Sollecito, John M.

Refrigeration

Processes

Separating or preventing formation of undesirables

62195, 62475, 62231, 62158, F25B 4700

Patent

active

055156908

ABSTRACT:
A purge supplement includes a vessel that attaches to a gas discharge line of a purge system. Adsorbent material is disposed within the vessel. In a Vent Mode the purge system vents into the vessel and the vessel vents to the atmosphere, whereby the purge system effectively vents through the vessel and the adsorbent material in the vessel adsorbs refrigerant. The purge supplement senses, by employing a weight scale or a refrigerant detection monitor, when the adsorbent material has adsorbed a certain amount of refrigerant, and at that time operation of the purge supplement switches from the Vent Mode to a Recycle Mode. When the transition is made to the Recycle Mode the vessel is isolated from the purge system and, after a slight delay, the atmosphere. After the slight time delay, the vessel is placed in fluid communication with an evaporator of a refrigeration system that the purge supplement is associated with. Refrigerant is drawn out of the adsorbent material and into the evaporator. Then, operation of the purge supplement switches back to the Vent Mode until such time as the purge supplement senses that the adsorbent material has adsorbed the certain amount of refrigerant, at which time operation switches again to the Recycle Mode.

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