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    • 8. 发明授权
    • Fin-tube heat exchanger
    • 翅片管换热器
    • US5207270A
    • 1993-05-04
    • US776776
    • 1991-10-17
    • Shoichi YokoyamaHitoshi MotegiOsamu AoyagiToshiaki Andoh
    • Shoichi YokoyamaHitoshi MotegiOsamu AoyagiToshiaki Andoh
    • F28F1/32
    • F28F1/325
    • The fin-tube heat exchanger includes a group of fins arranged parallel to one another at predetermined intervals; cylindrical fin collars formed on each fin at a predetermined column pitch and a predetermined row pitch; and heat transfer tubes extending through the respective fin collars and secured thereto in intimate contact therewith. Seat portions are formed on each fin around the fin collars. A curved protuberance of a generally angular cross-section is formed on the fin adjacent to an outer periphery of each of the seat portions, which has a ridge line of an arcuate or circular shape arranged in concentric relation to the associated fin collar. A plurality of straight protuberances of a generally angular cross-section are formed on each fin adjacent to outer peripheries of the respective seat portions between any two adjacent rows of the fin collars. With this structure, heat transfer performance is improved by a turbulence promoting effect of the straight protuberances. Also an air flow is guided into slip streams behind the heat transfer tubes by the curved protuberances, thereby reducing stagnation zones and increasing the effectively used heat transfer area to improve heat transfer performance.
    • 翅片管热交换器包括以预定间隔彼此平行布置的一组翅片; 在每个翅片上以预定的柱间距和预定的行间距形成圆柱形的翅片环; 以及延伸穿过相应的翅片套环并与之紧密接合的传热管。 在翅片周围的每个翅片上形成座部。 在与每个座部的外周相邻的翼片上形成有大致角度的横截面的弯曲突起,该座部具有与相关联的翼片颈圈同心的弓形或圆形的脊线。 在相邻的座部分的外周边的每个翅片上形成有大致角度的横截面的多个直的突起,在任何两相邻的翅片套环之间。 通过这种结构,通过直凸部的湍流促进作用提高了传热性能。 此外,空气流通过弯曲的突起被引导到传热管后面的滑动流中,从而减少停滞区域并增加有效使用的传热面积以改善传热性能。
    • 10. 发明授权
    • Finned heat exchanger
    • 翅片换热器
    • US6142220A
    • 2000-11-07
    • US941390
    • 1997-09-30
    • Hitoshi MotegiShoichi YokoyamaOsamu Aoyagi
    • Hitoshi MotegiShoichi YokoyamaOsamu Aoyagi
    • F28F1/32F28F27/02F28F13/00F28D1/053
    • F28F9/0275F28F1/325F28F2270/00
    • A finned heat exchanger includes a plurality of elongated fins which are arranged at a predetermined interval in parallel with one another such that air flows between neighboring ones of the fins in a predetermined direction. A plurality of heat transfer tubes which contain refrigerant passing therethrough are orthogonally inserted through the fins so as to be arranged in a plurality of columns on the fins. When the finned heat exchanger is operated for condensation, the heat transfer tubes are provided in two paths in the vicinity of an inlet for the refrigerant and are provided in one path in the vicinity of an outlet for the refrigerant, such that the heat transfer tubes of the one path occupy about 5 to 30% of all the heat transfer tubes.
    • 翅片式热交换器包括多个细长翅片,它们以预定的间隔彼此平行地布置,使得空气在预定方向上在相邻翅片之间流动。 包含通过其中的制冷剂的多个传热管通过翅片正交地插入,以便布置在翅片上的多个列中。 当翅片式热交换器运行冷凝时,传热管在制冷剂入口附近的两条路径上设置,并且设置在用于制冷剂的出口附近的一个路径中,使得传热管 的一个路径占据所有传热管的约5至30%。