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公开(公告)号:US4300629A
公开(公告)日:1981-11-17
申请号:US50455
申请日:1979-06-20
申请人: Toshio Hatada , Takao Senshu , Akira Arai , Fumio Harada , Atsushi Matsuzaki , Hajime Futawatari , Yutaka Imaizumi , Sumiyoshi Takeda
发明人: Toshio Hatada , Takao Senshu , Akira Arai , Fumio Harada , Atsushi Matsuzaki , Hajime Futawatari , Yutaka Imaizumi , Sumiyoshi Takeda
CPC分类号: F28F1/325 , F28F2250/02 , Y10S165/503
摘要: A cross-fin tube type heat exchanger having a large number of parallel fins and a plurality of heat transfer tubes extended through and fixed to the fins, so that heat may be exchanged between a first heat exchanging medium flowing through the heat transfer tubes and a second heat exchanging medium flowing along the surfaces of the fin, across the walls of the heat transfer tubes and through the fins. In the portions of each fin between adjacent heat transfer tubes of the same row, formed are a number of slits perpendicular to the direction of flow of the second heat exchanging medium. Each elongated section defined between each pair of adjacent slits is bent along its breadthwise bisector line and is raised in the form of a bridge to constitute an upwardly convexed louver element. The upwardly convexed louver element may have a cross section with an obtuse apex angle, or may have an arcuate cross section. The successive louver elements are arrayed in the direction of flow of the second heat exchanging medium in a manner of corrugation, or alternately staggered in the heightwise direction so that the edges of adjacent louver elements may be staggered in the heightwise direction. The fins having louver elements thus constructed cause a turbulency of the flow of the second heat exchanging medium to effectively prevent boundary layers of the latter from growing, thereby to ensure a higher efficiency of the heat exchange. Also increased stiffness or rigidity of the fin is obtained thanks to the provision of upwardly convexed louver elements.
摘要翻译: 一种具有大量平行翅片和多个传热管的交叉翅片管型热交换器,其延伸并固定在翅片上,使得热量可以在流过传热管的第一热交换介质和 第二热交换介质沿着翅片的表面流动,穿过传热管的壁并且通过翅片。 在相邻行的相邻传热管之间的每个翅片的部分形成有垂直于第二热交换介质的流动方向的多个狭缝。 限定在每对相邻狭缝之间的每个细长部分沿着其宽度方向的平分线弯曲并且以桥的形式被升高以构成向上凸起的百叶窗元件。 向上凸起的百叶窗元件可以具有钝角顶角的横截面,或者可以具有弓形横截面。 连续的百叶窗元件以波纹的方式在第二热交换介质的流动方向上排列,或者在高度方向上交错排列,使得相邻百叶窗元件的边缘可能在高度方向上交错。 具有如此构造的百叶窗元件的翅片导致第二热交换介质的流动的湍流,以有效地防止后者的边界层生长,从而确保更高的热交换效率。 由于提供了向上凸起的百叶窗元件,还获得了翅片的增加的刚度或刚度。
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公开(公告)号:US4285385A
公开(公告)日:1981-08-25
申请号:US51141
申请日:1979-06-22
申请人: Masakatsu Hayashi , Takeo Tanaka , Tatsuo Natori , Tatsushi Aizawa , Shigeru Kojima , Takao Senshu
发明人: Masakatsu Hayashi , Takeo Tanaka , Tatsuo Natori , Tatsushi Aizawa , Shigeru Kojima , Takao Senshu
IPC分类号: B22D25/02 , B22C7/02 , B22C9/04 , B22D18/04 , B22D19/00 , F28D1/047 , F28F1/10 , F28F1/12 , F28F13/00
CPC分类号: F28F13/003 , B22C9/26 , B22D18/04 , B22D19/0063 , B22D19/0072 , B22D25/005 , F28D1/0477 , B22C9/04 , Y10S165/907 , Y10T29/4935
摘要: A method of producing a heat exchanger in which a fin block of porous metal and fin plates connected to the fin block are unitarily secured to a serpentine heat-transmitting pipe. A plurality of fin molds produced with the use of plastic patterns formed therein with continuous, three-dimensional cavities are assembled with the heat-transmitting pipe shaped beforehand into a serpentine form in such a manner that the fin molds enclose the heat-transmitting pipe with suitable spacing intervals defined between the fin molds themselves and between the fin molds and the heat-transmitting pipe. Molten metal of high thermal conductivity is cast into continuous cavities in the fin molds and into the spacing intervals, and the material of the fin molds is removed after the molten metal has solidified.
摘要翻译: 一种制造热交换器的方法,其中连接到翅片块的多孔金属和翅片板的翅片块整体地固定到蛇形传热管。 使用其中形成有连续的三维空腔的塑料图案制造的多个翅片模具与预先成形为蛇形的传热管组装,使得翅片模具将传热管与 限定在翅片模具本身之间以及翅片模具和传热管之间的合适的间隔间隔。 具有高导热性的熔融金属被铸造成翅片模具中的连续空腔并进入间隔间隔,并且在熔融金属固化后去除翅片模具的材料。
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