JPH02145356U

JPH02145356U -

Info

Publication number: JPH02145356U
Application number: JP5338589U
Authority: JP
Priority date: 1989-05-11
Filing date: 1989-05-11
Publication date: 1990-12-10

Description

[Brief explanation of the drawing]

第１図は本考案による圧力容器の一実施例を示
す説明図、第２図は第１図に示される容器を内側
から展開した状態を示す展開図、第３図は従来の
耐蝕ライニングが施された圧力容器を示す説明図
、第４図は第３図の“”部分断面拡大図である
。第１図及び第２図において、４……層成部、５
……内筒、６……外筒、７，７′及び７″……耐
蝕ライニング、８，８′……肉盛溶接、９，９′
……ライニング溶接線（周継手）、１０，１０′
……検知穴、１１，１１′……ライニング溶接線
（長手継手）、１２，１２′……溝、１３，１３
′……連通穴。 Fig. 1 is an explanatory view showing an embodiment of the pressure vessel according to the present invention, Fig. 2 is an exploded view showing the container shown in Fig. 1 opened from the inside, and Fig. 3 is a conventional corrosion-resistant lining. FIG. 4 is an enlarged partial sectional view of FIG. 3. In Fig. 1 and Fig. 2, 4... layered part, 5
... Inner cylinder, 6 ... Outer cylinder, 7, 7' and 7'' ... Corrosion-resistant lining, 8, 8' ... Overlay welding, 9, 9'
...Lining weld line (circumferential joint), 10,10'
...Detection hole, 11,11'...Lining weld line (longitudinal joint), 12,12'...Groove, 13,13
'...Communication hole.

Claims

[Scope of Claim for Utility Model Registration] In a multilayer pressure vessel, (1) the vessel body is composed of an inner cylinder made of carbon steel, a stratified part formed in contact with the outer surface of the inner cylinder, and an outer cylinder; (2) A corrosion-resistant lining is provided on the inner surface of the inner cylinder, (3) a detection hole penetrating to the outer surface is provided near the seam weld of the lining, (4) on the back surface of the seam weld of the lining, Overlay welding made of a material equal to or higher than the corrosion-resistant lining is applied to the inner surface of the inner cylinder over a range exceeding the position occupied by the detection hole, and (5) the overlay welding and the lining are in contact with each other. A pressure vessel provided with a corrosion-resistant lining, characterized in that a surface thereof has a groove substantially parallel to the weld line of the seam weld and a hole through which the groove communicates with the detection hole.