TURN-FIN TUBE, MANUFACTURING APPARATUS OF THE TURN-FIN TUBE, MANUFACTURING METHOD OF THE TURN-FIN TUBE AND TURN-FIN TYPE HEAT EXCHANGER USING THE TURN-FIN TUBE.

摘要

A turn-fin tube, a turn-fin type heat exchanger using the same, and an apparatus and method for manufacturing the same are provided. The turn-fin tube includes a tube in which a fluid flows, and a fin wound on an outer surface of the tube in a helical shape. The fin includes a base section wound on an outer surface in contact with the tube, and an extension section extending from the base section in an outward direction of the tube at a predetermined angle.