TH94582B - Fin-and-tube heat exchanger - Google Patents

Abstract

The invention provided a fin-and-tube heat exchanger. That has the ability to bend to sufficient curves and dimensions and reduced weight But has the ability to demonstrate transferability Required heat The heat exchanger consists of groups of straight tubes arranged in parallel rows. The size of the reverse bend tubes is linked to the ends of each straight tube, and the groups of flanges. Arranged in parallel rows at equal distances On the outer surface, the straight tubes, the refrigerant is fed to the straight tubes and the reverse bends. The end of each straight pipe The pipe is expanded. So that the outer surface of the reverse bend pipe is linked with the inner surface Of the extended tip The first pipe wall thickness (T1) and the second pipe wall thickness (T2) correspond to the relationship (T2)> (T1) ratio of the bending radius (R2) of the reverse bend pipe when Compare with the outer diameter (D2) of this pipe (R2 / D2) no smaller than 1.0 and no larger than 3.0.

Claims (1)

1.Fin-and-tube heat exchanger Consisting of groups of straight pipes arranged in parallel rows; A group of back-bent pipes linked to the apex of each straight pipe; And various groups of fins Arranged in parallel rows at equal distances Each other on the outer surface of those straight pipes; All straight pipes and back-bend tubes provided for the refrigerant to be fed there; Where all the ends of each straight pipe are extended. So that the outer surface Of the pipe bending backward to rub