Low dew point gas generator cooling system
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United States of America Patent
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Sep 10, 1996
Grant Date -
N/A
app pub date -
Jun 1, 1995
filing date -
Jun 1, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
A drying system is disclosed for drying wet gases, typically produced by a gas generator to dew points less than 32.degree. F. The system uses a refrigeration cycle having a single compressor to dry the wet gas in a first evaporator while simultaneously defrosting the ice buildup on a second evaporator. The cycle then switches from the first evaporator to the second evaporator after the second evaporator is defrosted. The switching is preceded by a changeover phase in which cooled refrigerant is pulsed to the defrosted evaporator and both evaporators go on line for a short time before the system phase change occurs thus assuring control of the dried gas temperature while avoiding shock to the refrigeration system.
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