A method for manufacturing a heat exchanger
    2.
    发明公开
    A method for manufacturing a heat exchanger 失效
    HerstellungsverfahrenfüreinenWärmeaustauscher。

    公开(公告)号:EP0237761A1

    公开(公告)日:1987-09-23

    申请号:EP87101724.0

    申请日:1987-02-08

    申请人: ABB FLÄKT AB

    IPC分类号: F28F1/32 B21D53/08 F28F19/02

    摘要: The invention relates to a heat-exchanger (10) incorporating circulation tubes (16) for conducting a first heat-transfer medium, end plates (12), and surface-enlarging plate-like fins (14) secured to the outer peripheral surfaces of the circulation tubes (16) and arranged to be contacted with a second heat-transfer medium, the fins (14) being firmly secured to the circulation tubes (16), which extend through holes (18) formed in the fins (14). The fins (14) are secured to the tubes (16) by expanding the tubes (16) so as to enlarge the periphery thereof. In the region of their contact with each circulation tube (16), the fins (14) are substantially planar and oriented in a plane extending at right angles to the long- i tudinal axis of the circulation tube (16) and are constructed of a single plate-thickness, i.e. with the absence of any collar-like bent portion or any other bent portion of the fin plate (14) adjacent the contact surface against the circulation tube (16). The contact surfaces of the fins (14) about the inside periphery of the holes (18) which engage against the circulation tubes (16) extend parallel to the longitudinal axis of the circulation tubes (16) over at least a greater part of the axial extent of the holes, which affords stable ttachment and good heat-transfer properties. The whole of the heat-exchanger (10) can be coated with an impervious, protective surface layer (26), for example enamel.

    摘要翻译: 热交换器由具有附接到外表面的板状翅片(14)的循环管(16)组成。 与管接触的翅片的区域是平面的并且与管的轴线成直角。 设置在翅片中的用于容纳管并固定它们的孔(18)通过精细冲压形成。 相对于管的孔的接触表面沿着孔的轴向延伸与管轴线平行。