JPH0379063U

JPH0379063U -

Info

Publication number: JPH0379063U
Application number: JP13705289U
Authority: JP
Priority date: 1989-11-27
Filing date: 1989-11-27
Publication date: 1991-08-12

Description

[Brief explanation of the drawing]

第１図は本考案の二重管型熱交換器の一実施例
を示す一部縦断面図である。第２図は第１図のシ
ート部材およびその近傍を拡大して示す縦断面図
である。第３図は外管の端部を内管の端部にかし
めた状態を示す縦断面図である。第４図は本考案
の二重管型熱交換器の他の実施例を示す一部縦断
面図である。第５図は第４図のシート部材および
その近傍を拡大して示す縦断面図である。第６図
は支持部の内面と内管との間に第２シール材を介
装した状態で内管の端部を固定部の他側にかしめ
た状態を示す縦断面図である。第７図は従来の二
重管型熱交換器が取り付けられたラジエータを示
す側面図である。第８図は従来の二重管型熱交換
器を示す縦断面図である。主要な部分の符号の説明、３５，６１…二重管
型熱交換器、３７，５９，６９…外管、３９，５
５，６７，８３…内管、４１，７７…二重管、４
３，７９…流体流通通路、４７，６３…シート部
材、５３，５７…シール材、６５，８７…固定部
、７１…第１シール材、７５，８５…第２シール
材。 FIG. 1 is a partial vertical sectional view showing an embodiment of the double tube heat exchanger of the present invention. FIG. 2 is an enlarged vertical sectional view showing the sheet member shown in FIG. 1 and its vicinity. FIG. 3 is a longitudinal sectional view showing a state in which the end of the outer tube is caulked to the end of the inner tube. FIG. 4 is a partial vertical sectional view showing another embodiment of the double tube heat exchanger of the present invention. FIG. 5 is an enlarged vertical sectional view showing the sheet member of FIG. 4 and its vicinity. FIG. 6 is a longitudinal cross-sectional view showing a state in which the end of the inner tube is caulked to the other side of the fixed portion with the second sealing material interposed between the inner surface of the support portion and the inner tube. FIG. 7 is a side view showing a radiator equipped with a conventional double-tube heat exchanger. FIG. 8 is a longitudinal sectional view showing a conventional double-tube heat exchanger. Explanation of symbols of main parts, 35, 61...Double tube heat exchanger, 37, 59, 69...Outer tube, 39, 5
5,67,83...inner pipe, 41,77...double pipe, 4
3, 79... Fluid distribution passage, 47, 63... Sheet member, 53, 57... Seal material, 65, 87... Fixing part, 71... First seal material, 75, 85... Second seal material.

Claims

[Claims for Utility Model Registration] (1) An inner tube is inserted inside an outer tube to form a double tube, and a fluid circulation passage whose both ends are closed is provided between the outer tube and the inner tube. In the double tube heat exchanger, in which a sheet member is fixed to the double tube and opens into the fluid circulation passage and through which fluid flows, the ends of the outer tube and the inner tube are sealed together with a sealing material. A double-tube heat exchanger characterized in that both ends of the fluid circulation passage are closed by caulking each other through the double-tube heat exchanger. (2) Inserting an inner tube inside the outer tube to form a double tube, and forming a fluid circulation passage with both ends closed between the outer tube and the inner tube, and forming a fluid circulation passage in the double tube. , in a double pipe heat exchanger in which a sheet member that opens into the fluid circulation passage and through which fluid flows is fixed, the fixed part of the sheet member is formed in an annular shape, and the fixed part of this sheet member is formed in the inner part. Fitted onto the tube, the end of the outer tube is caulked to one side of the fixing part via a first sealing material, and a second sealing material is interposed between the fixing part and the inner tube. A double pipe heat exchanger, characterized in that the sheet member is fixed to the double pipe by caulking an end of the inner pipe to the other side of the fixing part.