Method and device for compression of gases

Refrigeration – Processes – Defrosting or frost inhibiting

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62 82, 62152, 62156, 62278, F25D 2106

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active

049284983

ABSTRACT:
The invention relates to a method and a device for compression of gases, in particular of air, within a compressed air piping system. The air drawn in for the compressor is cooled below 0.degree. C. within a freeze-dehumidifer in a cooling channel. The supply of undercooled refrigerant into the freeze-dehumidifier is interrupted during the defrosting of the freeze-dehumidifier situated within the cooling channel for the air drawn in towards the compressor. The condensate appearing in the form of ice on the freeze-dehumidifer is separated thereby. The defrosting operation is terminated after a pressure of the refrigerant corresponding to a positive temperature of the freeze-dehumidifier is exceeded, or after a presettable period has elapsed. The pressure of the refrigerant is monitored in the suction pipe and if appropriate in the delivery or pressure pipe of the refrigerant compressor.

REFERENCES:
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patent: 2763132 (1956-09-01), Jue
patent: 2879976 (1959-03-01), Rose, Sr.
patent: 3273635 (1966-09-01), Jobes
patent: 3453837 (1969-07-01), Sandstrom et al.
patent: 3453838 (1969-07-01), Decker et al.
patent: 3572052 (1971-03-01), Toth
patent: 3623334 (1971-11-01), Heidorn
patent: 3732703 (1973-05-01), Nordstrom et al.
patent: 4237696 (1980-12-01), Coblentz

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