PLATE HEAT EXCHANGER AND REFRIGERATION CYCLE APPARATUS INCLUDING THE SAME

摘要

A plate heat exchanger reduces the cross-sectional diameter of channels and suppresses clogging of the channels with a brazing material. First heat transfer plates each include a plurality of rows of inverse V-shaped waves formed on its surface, and second heat transfer plates each include a plurality of rows of V-shaped waves formed on its surface are alternately stacked. The intersections of the waves are joined by brazing. Further, a distance (L) between joint points in the short-axis direction of the heat transfer plates and a fillet dimension (f) in the short-axis direction of the heat transfer plates satisfy a relation 0≦((L−f)/L)×100≦40.

主权项

1. A plate heat exchanger configured such that heat transfer plates each having a plurality of rows of wavy channel forming patterns formed on a surface thereof and heat transfer plates each having wavy patterns obtained by inverting the channel forming patterns are alternately stacked, and intersections of the channel forming patterns are joined,
wherein the intersections of the channel forming patterns are joined by brazing, and a distance (L) between joint points in a short-axis direction of the heat transfer plates and a fillet dimension (f) in the short-axis direction of the heat transfer plates satisfy a relation 0≦((L−f)/L)×100≦40.