HEAT EXCHANGER

摘要

A heat exchanger (10) for exchanging heat between a refrigerant that experiences a phase change during heat exchange and another heating medium, wherein the heat exchanger (10) is provided with a refrigerant header (50), a plurality of flat multi-hole tubes (40), and a plurality of flat tubes (20). The refrigerant header (50) has the refrigerant flowing through the interior thereof. The flat multi-hole tubes (40) extend in a direction that intersects the longitudinal direction of the refrigerant header (50). The flat multi-hole tubes (40) have formed in the interior thereof a plurality of refrigerant flow paths through which the refrigerant flows. The flat tubes (20) are stacked alternately with the plurality of multi-hole tubes (40). The flat tubes (20) have the other heating medium flowing through the interior thereof. Furthermore, the refrigerant header (50) is disposed so as to extend along the horizontal direction.