Refrigeration – Processes – Circulating external gas
Patent
1994-05-12
1995-07-04
Kilner, Christopher
Refrigeration
Processes
Circulating external gas
62272, 62 11, B01D 800, F25J 308, F25D 1706, F25D 2100
Patent
active
054289637
ABSTRACT:
A compressed air system to deliver dry and clean air whereby the compressed air supplied by the air compressor is passed through a primary circuit of a heat exchanger and a liquid separator where it is cooled down close to the freezing point of the water so that the majority of the water vapor in the air will condense. The condensate as well as majority of the oil in the air is removed from the air stream with a centrifugal action inside the liquid separator which consists of a precooling chamber, cooling lines, conical centrifugal separator section, vertical center cavity and exit passage. The superheated air leaving the liquid separator unit can be dried further by passing the air through the freezer dryer units where its temperature is lowered below the freezing point of the water so that the remaining water forms into ice crystals and will get attached to the inside walls of the freezer dryer. The returning air from the liquid separator is guided through the secondary circuit of the heat exchanger before it enters the air reservoir tank. The remaining oil particles as well as rust and dust in the air stream can be removed with an oil filter unit placed downstream from the storage tank.
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Korycka Barbara M.
Korycki Leszek S.
Lehtovaara Jorma J.
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