Purger for refrigeration system

Details Purger for refrigeration system Purger for refrigeration system

1993-11-19

1995-03-28

Sollecito, John M.

Refrigeration

Automatic control

Refrigeration producer

62475, F25B 4500

Patent

active

054006139

ABSTRACT:
A portable purging apparatus that automatically removes air and non-condensable gases from an operating refrigeration system wherein refrigerant gas condenses at a cooling coil disposed in the upper portion of a purge vessel, the condensate falling to the bottom of the vessel where a pickup tube conveys the condensate out of the vessel and to a thermal expansion valve that meters refrigerant into the cooling coil, the outlet of the coil connecting to the suction line of the operating refrigeration system. Non-condensable gases collect in the top of the purge vessel and displace condensable gas around the cooling coil causing less heat load at the coil and a lower suction line temperature whereby a thermostat actuates a purging solenoid valve to discharge non-condensable gases from the purge vessel through a flow restricting orfice to the atmosphere.

REFERENCES:
patent: 2577598 (1951-10-01), Zwicki
patent: 2920458 (1960-10-01), Watkins
patent: 3664147 (1972-05-01), Blackmon
patent: 4169356 (1979-10-01), Kingham
patent: 4776175 (1988-10-01), Romijn
patent: 5031410 (1991-07-01), Pizak et al.
patent: 5187953 (1993-02-01), Mount

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