JPH0319186U

JPH0319186U -

Info

Publication number: JPH0319186U
Application number: JP7953789U
Authority: JP
Priority date: 1989-07-07
Filing date: 1989-07-07
Publication date: 1991-02-25

Description

[Brief explanation of the drawing]

第１図は本考案に係る二重管の一実施例の軸方
向に垂直な断面図、第２図は一実施例の支持装置
の斜視図、第３図は他の実施例の斜視図、第４図
は他の実施例の支持装置の斜視図、第５図から第
７図は従来の二重管を示し、第５図は軸方向に垂
直な断面図、第６図は支持装置の斜視図、第７図
は第５図のＡ−Ａ方向から見た模式的に示す断面
図である。１０……内部配管、１１，１１ａ……外被配管
、１２，１２ａ……挿入孔、１３，１３ａ……支
持装置、１４……溶着金属。 FIG. 1 is a sectional view perpendicular to the axial direction of an embodiment of a double pipe according to the present invention, FIG. 2 is a perspective view of a support device of one embodiment, and FIG. 3 is a perspective view of another embodiment. FIG. 4 is a perspective view of another embodiment of the support device, FIGS. 5 to 7 show a conventional double pipe, FIG. 5 is a sectional view perpendicular to the axial direction, and FIG. 6 is a perspective view of the support device. The perspective view and FIG. 7 are schematic cross-sectional views seen from the direction AA in FIG. 5. DESCRIPTION OF SYMBOLS 10... Internal piping, 11, 11a... Exterior piping, 12, 12a... Insertion hole, 13, 13a... Supporting device, 14... Welding metal.

Claims

[Scope of utility model registration request]

An internal pipe, an outer pipe having an inner diameter larger than the outer diameter of the inner pipe and installed outside the inner pipe, an insertion hole drilled in the outer pipe, and an outside of the outer pipe. A double pipe comprising: a support device that is inserted into the insertion hole and fixed to the jacket piping, and supports the internal pipe so that a gap is maintained between the internal pipe and the jacket pipe.