发明名称 |
METHOD OF JOINING TUBE AND TUBE SHEET IN SHELL &TUBE HEAT EXCHANGER AND SHELL & TUBE HEAT EXCHANGER PRODUCED BY THE METHOD |
摘要 |
A method of joining tubes that are regularly arranged in a shell & tube heat exchanger to tube sheets placed at opposite ends of the tubes and a shell & tube heat exchanger produced by the method. The method of joining the tubes to the tube sheets includes: forming a tube sheet groove in a surface of the tube sheet at a location spaced apart from a tube insert hole of the tube sheet by a predetermined distance, and forming a tube holding groove in an inner surface of the tube insert hole; inserting the tube into the tube insert hole of the tube sheet and expanding the tube; and performing both tube side welding and shell side welding so as to join the tube to the tube sheet, wherein the shell side welding is performed by inserting a welding torch into the tube.
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申请公布号 |
US2013175014(A1) |
申请公布日期 |
2013.07.11 |
申请号 |
US201213369386 |
申请日期 |
2012.02.09 |
申请人 |
HONG SEONGHUI;KIM CHANGSU;BAE CHANHYO;DONGHWA ENTEC CO., LTD. |
发明人 |
HONG SEONGHUI;KIM CHANGSU;BAE CHANHYO |
分类号 |
F28D7/00;B23K31/02 |
主分类号 |
F28D7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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