| 摘要 |
PROBLEM TO BE SOLVED: To provide a finned heat exchanger capable of discharging condensate water quickly and acquiring high heat exchange performance. ! SOLUTION: The finned heat exchanger includes fins 1 and heat transfer pipes 2 provided by penetrating the fins, and is configured in such a manner that the fin has a bent shape having a mountain ridge line and a valley ridge line with respect to an airflow direction, and at a lower end part of the fin, a substantially triangular inclined surface 6 is provided configured by three points, which are an arbitrary point on the mountain ridge line, an upwind side lower end point or a downwind side lower end point of the fin, and a lower end point of the valley ridge line. Thereby, each ridge line configuring the inclined surface provided at the fin lower end part works as a drain water recovery passage, condensate water flowing down from a fin upper part is made to flow quickly, and a satisfactory gravitational effect can be exerted by collecting the condensate |
