FROST REMOVAL DEVICE FOR HEAT EXCHANGER

摘要

A defrosting unit for a heat exchanger is provided to prevent the increase of frost from a heat exchanger without stopping operation or using any defrosting heaters. A blocking unit(120) is mounted to an inner or outer surface of a main body(110) of a heat exchanger and has an air path(121) for supplying air to the main body partially. A conveying unit(130) moves the blocking unit along with the main body for making the air path to face the main body in sequence.