JPS58128395U - Joint structure of tube and tube sheet - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来の管と管板の接合構造の部分断面図、第２
図は本考案の第一段階の耐食性の薄い板材と管とのシー
ル溶接の部分断面図、第３図は更に管板に取りつけた後
の構造の断面図である。 １・・・伝熱管、２・・・管板、３・・・シール溶接、
４・・・肉盛溶接、５・・・すき間、６・・・耐食性の
薄い板材、７・・・シール溶接、８・・・シール溶接７
の反対側、９・・・管大の切欠き。Figure 1 is a partial cross-sectional view of a conventional joint structure between a tube and a tube sheet.
The figure is a partial sectional view of seal welding between a corrosion-resistant thin plate and a tube in the first stage of the present invention, and FIG. 3 is a sectional view of the structure after being attached to a tube sheet. 1... Heat exchanger tube, 2... Tube sheet, 3... Seal welding,
4... Overlay welding, 5... Gap, 6... Corrosion resistant thin plate material, 7... Seal welding, 8... Seal welding 7
On the opposite side, 9... pipe-sized notch.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] あらかじめ管板と同じ管穴をあけた耐食性の薄い板材に
管を適当長挿入して両者をシール溶接し、管板の管穴の
管側には切欠加工をした後これら管群と耐食性薄板の組
合せの管群を管穴に挿入し、拡管接合してできる管と管
板の接合構造。Insert the appropriate length of tubes into a thin corrosion-resistant plate material with the same tube holes as the tube sheet in advance, and seal-weld the two.After making a notch on the tube side of the tube hole in the tube sheet, these tubes and the corrosion-resistant thin plate are connected. A joint structure between tubes and tube sheets that is created by inserting a group of tubes into tube holes and expanding and joining them.