Refrigeration – Processes – Treating an article
Patent
1994-09-08
1995-09-26
Kilner, Christopher
Refrigeration
Processes
Treating an article
62 78, 62265, 62322, 65434, 65510, F25D 1306, C03B 2500, F24F 316
Patent
active
054525837
ABSTRACT:
A system and process for recovering high purity coolant gas from at least one fiber optic heat exchanger, characterized by controlling a flow of coolant gas into and out of the heat exchanger using a pressure, impurity and/or flow rate monitoring or transmitting means in conjunction with a flow adjusting or controlling device to limit air or other gas infiltration into at least one fiber optic passageway of the heat exchanger. A sealing means may also be used at at least one end of the fiber optic passageway to further reduce air or other gas infiltration into the passageway. The resulting high purity coolant gas from the outlet of the heat exchanger is delivered to the inlet of the heat exchanger. Optionally, the resulting coolant gas from the outlet of the heat exchanger may be cooled, filtered and/or purified before being delivered to the inlet of the heat exchanger.
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Denninger Douglas E.
Kilner Christopher
Pak Chung K.
Praxair Technology Inc.
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