HEAT TRANSFER PIPE FOR HEAT EXCHANGER

摘要

PURPOSE: To prevent a capability of a heat exchanger of an air conditioner using nonazeotropic mixture refrigerant from decreasing, and prevent its condensing function from reducing. CONSTITUTION: Two bottom anglesα1 andα2 of a mountain-shaped part 7 in which a shape of a sectional surface 3 forming a groove at an inner surface of a main body is a trapezoid are set to be different from each other, thereby a pressure loss of nonazeotropic mixture refrigerant is increased during an evaporation flowing toward an arrow B and in turn when the condensing is carried out to flow in a direction of an arrow A, it is restricted to prevent icing at a part near the inlet port of the evaporator and then a high performance in operation can be attained.