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    • 9. 发明授权
    • Heat exchanger and water heater
    • 热交换器和热水器
    • US07934538B2
    • 2011-05-03
    • US11882794
    • 2007-08-06
    • Toshihiko ObayashiSatoshi KawaguchiHidefumi KodaKohei Yamada
    • Toshihiko ObayashiSatoshi KawaguchiHidefumi KodaKohei Yamada
    • F28F9/12
    • F24H1/40F24H9/0089F28D7/16F28F9/12F28F2230/00
    • A plurality of first joint tubes 40 connected to a plurality of heat transfer tubes 3 and a plurality of second joint tubes 50 provided at a header 5B are connected to each other at joints J. The joints J include at least one slide joint Ja at which respective ends of the first and the second joint tubes 40 and 50 are fitted to each other slidably in a predetermined direction. The joints J further include at least one butt joint Jb at which an end of either one of the first and the second joint tubes butts against a sealing surface provided at the other one of the first and the second joint tubes. The butt position of the sealing surface and the end is variable in a direction crossing the predetermined direction. With this arrangement, the influence of an error in the arrangement of the first and the second joint tubes 40 and 50 is reduced, so that the header 5B is properly connected to the heat transfer tubes 3 detachably, and the maintenance of the heat exchanger HE is facilitated.
    • 连接到多个传热管3的多个第一接合管40和设置在集管5B处的多个第二接头管50在接头J处彼此连接。接头J包括至少一个滑动接头Ja,其中 第一和第二接头管40和50的相应端部沿预定方向可滑动地彼此嵌合。 接头J还包括至少一个对接接头Jb,其中第一和第二接头管中的任一个的端部抵靠设置在第一和第二接头管中的另一个上的密封表面。 密封面和端部的对接位置在与规定方向交叉的方向上是可变的。 利用这种布置,减小了第一和第二接头管40和50的布置中的误差的影响,使得集管5B可拆卸地适当地连接到传热管3,并且热交换器HE的维护 方便了