HEAT EXCHANGER FOR A DRIER, CONDENSING TYPE DRIER UTILIZING THE SAME, MANUFACTURING METHOD THEREOF

摘要

A heat exchanger for a dryer, a manufacturing method of the same, and a condensation-type dryer using the same are provided to increase the heat transfer property and reduce the production cost according to the formation of plural air paths at the fin structures. A heat exchanger for a dryer is composed of plural tubes(32) shaped like a duct where the wet air is circulated and flowed; and plural fin structures(34) alternately laminated with the plural tubes so as to flow the outer air. At least a part of the tubes and the fin structures is jointed through the medium of a clad material. Both ends of the tube are opened, and the section of the tube is shaped like a rectangle. The fin structure contains plural air paths where the outer air is flowed, and plural fins are formed at the surface of the air path.