PLATE FIN HEAT EXCHANGER AND MANUFACTURING METHOD FOR HEAT EXCHANGER CORRUGATED FINS

摘要

It solves the problems, such as: in the heat exchanger to improve the corrugated fin of bonding strength. ;SOLUTION: plate wing heat exchanger 1 includes corrugated fin 3 and tube sheet 2. Plural projection part 34 protrudes past external waviness alignment, and the peak value of the part 31 between middle section 33 and the ripple of valley portions 32 terminate the peak value on surface in a first direction and valley portions contact composition contact surface 310,320 on tube sheet and do not provide projection part. The peak value between the contact surface of projection part and the lowest point part that a kind of gradual change portion 341 gradually projects from the surface are located substantially farther from contact surface. ;COPYRIGHT:(C) 2015, JPO& INPIT