Refrigeration purging system

Details Refrigeration purging system Refrigeration purging system

1979-09-12

1981-05-19

Capossela, Ronald C.

Refrigeration

Automatic control

Refrigeration producer

62475, F25B 4304

Patent

active

042677050

ABSTRACT:
A purge system for use in a refrigeration system utilizing more than one condenser, each of which operates at different pressures. The purge system includes a purge chamber having a cooling coil connected to the evaporator and adapted to condense refrigerant vapor. The purge chamber is connected to a main purge refrigerant line which includes a pressure reducing device. Either condenser in the refrigeration system is provided with a secondary purge refrigerant line connected to the main purge refrigerant line and having a one-way valve to prevent refrigerant flow from one condenser to another condenser. A pump is mounted in the system to remove the non-condensibles from the purge system. The pump is operatively connected to a pressure switch arranged between two sampling pressure lines, one of which is extending to the purge chamber and another one is extending to the main purge refrigerant line at a point ahead of the pressure reducing device. The pump is actuated when the pressure differential between the purge chamber and the main purge refrigerant line drops below a preset amount.

REFERENCES:
patent: 2450707 (1948-10-01), Zwickl
patent: 3620038 (1971-11-01), Muench
patent: 3710585 (1973-01-01), Dillenbeck et al.

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