Refrigeration system

Details Refrigeration system Refrigeration system

1976-04-05

1977-11-29

Wayner, William E.

Refrigeration

Automatic control

Trapping and discharging refrigerant batches

62197, 62510, F25B 4100

Patent

active

040599680

ABSTRACT:
A recirculating refrigeration system wherein a screw compressor receives vaporized refrigerant from the evaporators at its low pressure inlet and from a flash tank or receiver at an intermediate pressure inlet. Refrigerant which is not vaporized in the evaporators is trapped in a suction line accumulator from which it flows by gravity into a dump tank. The dump tank has a gas pressure connection to the compressor outlet or to the receiver or flash tank and a control valve is effective to introduce gas under pressure to the dump tank and force the liquid accumulated therein back into a receiver when it has risen to a predetermined level in the dump tank.

REFERENCES:
patent: 2655008 (1953-10-01), Sloan et al.
patent: 2871673 (1959-02-01), Richards et al.
patent: 2966043 (1960-12-01), Ross
patent: 3568466 (1971-03-01), Brandin et al.

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