公开(公告)号：US5564497A

公开(公告)日：1996-10-15

申请号：US552979

申请日：1995-11-03

申请人： Mikio Fukuoka ,  Yoshifumi Aki

发明人： Mikio Fukuoka ,  Yoshifumi Aki

IPC分类号： F28F1/30 ,  B60H1/08 ,  F28D1/053 ,  F28F1/12 ,  F28D1/04

CPC分类号： F28F1/126 ,  F28D1/05366 ,  F28F21/084 ,  Y10S165/487 ,  Y10S165/505

摘要： According to the present invention, in a corrugated fin type heat exchanger including a core portion having a plurality of flat tubes disposed in parallel relation with regard to a flow direction of air and at least one corrugated fin disposed between each pair of the flat tubes, a height of a flow space within the flat tube is in a range of 0.6-1.2 mm, a height of the corrugated fin is in a range of 3-6 mm, and a ratio (St/W.times.D) of the cross-sectional area (W.times.D) expressed by an overall width dimension (W) and a thickness dimension (D) of the core portion to a total cross-sectional flow passage area (St) of the plurality of flat tubes is set to a range of 0.07-0.24 according to the height of the flow space of the flat tube and the height of the corrugated fin. In this way, it is possible to reduce the Reynold's number of the flow passages within the flat tubes to maintain a constant region irrespective of the variation in the hot water flow quantity, thereby reducing the variation in the water side heat transfer rate.

摘要翻译： 根据本发明，在波纹翅片式热交换器中，包括具有多个扁平管的核心部分的芯部，所述多个扁平管相对于空气的流动方向平行地设置，并且至少一个波纹翅片设置在每对扁平管之间， 扁平管内的流动空间的高度在0.6-1.2mm的范围内，波纹状翅片的高度在3-6mm的范围内，横截面积的比（St / WxD） 由多个扁平管的芯部的总宽度尺寸（W）和厚度尺寸（D）与总横截面流路面积（St）表示的（WxD）设定为0.07〜0.24的范围 根据扁平管的流动空间的高度和波纹状翅片的高度。 以这种方式，可以减小平管内的流动通道的雷诺数，以保持恒定区域，而与热水流量的变化无关，从而减少水侧传热速率的变化。