STRUCTURE OF COOLING TYPE COMPRESSED AIR DEHUMIDIFYING APPARATUS

摘要

PURPOSE:To perform the heat exchange with the heat of condensation of the freezing cycle of a cooling type compressed air dehumidifying apparatus while reducing the size of the apparatus as a whole. CONSTITUTION:A compressor, a primary heat exchanger 14 having a double piping structure, a pressure reducing means and the evaporator of a freezing cycle connected to an evaporator in a circulative manner are arranged in a secondary heat exchanger 18 having an air outlet and an air inlet through a cooling medium pipe. The cooling medium pipe is connected to the outer pipe 14b of the primary heat exchanger 14 so that a cooling medium flows to the outer periphery of the inner pipe 14a of the primary heat exchanger 14. The air outlet of the secondary heat exchanger 18 is allowed to communicate with the inner pipe 14a of the primary heat exchanger 14 and the open air is sent to the outer periphery of the primary heat exchanger 14 from a blow fan.