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    • 6. 发明公开
    • DOUBLE PIPE HEAT EXCHANGER AND METHOD OF MANUFACTURING THE SAME
    • 双管热交换器及其制造方法
    • EP3282214A1
    • 2018-02-14
    • EP17152027.3
    • 2017-01-18
    • HS R & A Co., Ltd.
    • LEE, JongkangKANG, ByeongkiLIM, DeokhyunKIM, YoungjunSIM, Jaewon
    • F28D7/10F28F1/42F28F1/36F28F1/06F28F1/08
    • A double pipe heat exchanger and a method of manufacturing the same are provided. The double pipe heat exchanger including an outer pipe and an inner pipe having a first flow channel therein and having an outer diameter smaller than an inner diameter of the outer pipe and inserted into the outer pipe to form a second flow channel between the inner pipe and the outer pipe includes a plurality of first grooves formed in a spiral shape in a lengthwise direction at an outer circumferential surface of the inner pipe to enable the second flow channel to have at least partially a spiral shape and at least one second groove each formed in a portion between two first grooves adjacent to an outer circumferential surface of the inner pipe and formed along the first groove.
    • 提供双管热交换器及其制造方法。 所述双层管热交换器包括外管和内管,所述内管具有在其中的第一流动通道并且具有小于所述外管的内径的外径并且插入所述外管中以在所述内管和所述内管之间形成第二流动通道, 所述外管包括多个第一凹槽,所述多个第一凹槽在所述内管的外周表面处沿长度方向以螺旋形状形成,以使得所述第二流动通道能够具有至少部分螺旋形状和至少一个第二凹槽, 位于两个第一凹槽之间的部分,所述两个第一凹槽与内管的外周表面相邻并且沿着第一凹槽形成。