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    • 4. 发明申请
    • WELDING METHOD FOR SHELL AND TUBE
    • 壳和管的焊接方法
    • US20160288240A1
    • 2016-10-06
    • US15082099
    • 2016-03-28
    • SEWON CELLONTECH CO.,LTD.
    • Yong Hyun YooKang Jun LeeShin Ghu ParkJeong Cheol JuJeong Seok OhYou Jin Park
    • B23K11/093
    • B23K11/0935B23K9/0284B23K9/0288B23K2101/14F28D7/16F28F9/18F28F9/185
    • A method for welding tubes to tube insertion holes formed through tube sheets of a shell and tube heat exchanger, including forming ring-shaped tube sheet grooves, spaced from the tube insertion holes by a designated distance in the outer circumferential direction, on one surface of the tube sheet at the shell side, inserting tube joint members, having a cylindrical shape with the same diameter as that of the tubes, into the tube insertion holes of the tube sheet, manufacturing ring wires by cutting a welding wire having a long length into pieces having a designated length and bending the pieces into a ring shape so as to be inserted into the outer circumferences of the tubes, inserting the ring wire into the outer circumference of one end of the tube, inserting the one end of the tube into the tube sheet in one direction such that the one end of the tube contacts one end of the tube joint member facing the one end of the tube and is located within the recessed distance range of the tube sheet groove, performing tube side welding by welding the other end of the tube joint member to the other surface of the tube sheet at the tube side, and performing shell side welding by inserting a welding torch into the tube joint member and thus welding the one end of the tube joint member, the one end of the tube and the joint part to the one surface of the tube sheet at the shell side using the ring wire as a filler metal.
    • 一种用于将管道焊接到管状插管孔的方法,该插管孔通过管壳式热交换器的管板形成,包括在管的一个表面上形成与管插入孔间隔一定距离的环形管板槽 在壳侧的管板,将具有与管直径相同的圆筒形的管接头部件插入管板的管插入孔中,通过将具有长长度的焊丝切割成制造环形线 具有指定长度并将片弯曲成环形以便插入管的外周的片,将环线插入管的一端的外周,将管的一端插入 管板在一个方向上使得管的一端接触管接头构件的面向管的一端的一端,并且位于管的凹入距离范围内 通过将管接头构件的另一端焊接到管侧的管板的另一个表面进行管侧焊接,并通过将焊炬插入管接头构件中进行壳侧焊接,从而焊接 管接头构件的一端,管的一端和接头部分使用环形线作为填充金属而在壳侧的一个表面。