Abstract: Apparatus for cold drying or cold-condensing of gas comprises a heat exchange device and drying device through which a cold-carrying medium flows and which is cooled to such an extent that moisture contained in the gas under treatment is condensed out, frosted out, frozen out and/or liquefied. The heat exchange device and the drying device comprise an integral unit. At least one discharge pipe drains away the liquid condensate, the frost or ice and/or the liquid which are separated from the gas flow.

Abstract: An apparatus for the refrigerated drying of gases, more particularly of compressed air, has at least one gas supply system, with a refrigerating device which has a heat exchanger unit through which a refrigerant carrier is passed, a cooling assembly for cooling down the refrigerant to such a temperature that the liquid contained in the gas or the vapour contained in the gas is deposited in ice form, and a de-icing unit. In addition to a main gas supply system there is a further gas supply system which comprises the de-icing unit and to which hot refrigerant can be supplied from the main gas supply system wherein at least two de-icers are provided for the de-icing unit of which at least one can selectively undergo regeneration, and that downstream of the de-icer in the second gas supply system there is a collecting container which is connected to each of the de-icers and from which the refrigerant consumers can be supplied straightaway.