Refrigeration – Refrigeration producer – With refrigerant treater
Patent
1991-11-19
1993-09-07
Sollecito, John M.
Refrigeration
Refrigeration producer
With refrigerant treater
62 85, 62195, F25B 4304
Patent
active
052418375
ABSTRACT:
An auxiliary purge unit to be retrofitted to the existing purge unit of a low pressure refrigeration system includes a double-walled condenser portion, a pneumatic pressure chamber and a discharged-refrigerant tank. The double-walled condenser portion includes inner and outer walls with a chilled condensing coil disposed between the two walls, a stand pipe to create a reservoir of condensed refrigerant between the stand pipe and the inner wall, and an exhaust port for exhausting non-condensibles from the system. The pneumatic pressure chamber pressurizes the gas to be purged from the refrigeration system and delivers it to the chilled condensing coil. The discharged-refrigerant tank includes a float valve to prevent fluids from exiting the tank unless the valve is in the open position, and allows the elevated pressure of the system to be maintained. In operation, the gas to be purged from the system is pressurized, directed through the chilled condensing coil, and bubbled through the reservoir of liquid refrigerant.
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Redi Controls, Inc.
Sollecito John M.
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