Refrigeration – Refrigeration producer – With refrigerant treater
Patent
1995-09-28
1997-06-10
Doerrler, William
Refrigeration
Refrigeration producer
With refrigerant treater
62476, F25B 4304, F25B 1500
Patent
active
056365268
ABSTRACT:
A purge apparatus and method are disclosed for automatically purging an absorption cooling system. Noncondensible gas is drawn out of the absorber of the absorption cooling system by an eductor. The eductor entrains the gas in the fluid flow to the high pressure side of the system. The gas is drawn out of the high pressure side by a separate purge refrigeration system. The evaporator of the purge refrigeration system is located in a purge tank that is in free flow communication with the condenser of the absorption cooling system. Refrigerant vapor and intermixed noncondensible gas flow into the purge tank and the refrigerant vapor condenses on the purge refrigeration system evaporator. The condensed absorption refrigerant is returned to the absorption cooling system. The noncondensible gas collects in the purge tank and blankets the evaporator of the purge refrigeration system, causing the temperature of the purge refrigerant to decrease. At a specified temperature, a temperature sensor initiates a pump out of the noncondensible gas in the purge tank.
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"Purge needs in absorption chillers," ASHRAE Journal, Oct. 1993, pp. 40-42, 44, 46, 47.
Jandal Daoud A.
Plzak William J.
Seewald Jeffrey S.
Doerrler William
Gas Research Institute
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