METHOD OF JOINING TUBE AND TUBE SHEET IN SHELL amp; TUBE HEAT EXCHANGER

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.