| 摘要 |
(57) A double-walled pressure vessel comprises a thin-walled inner vessel (5, 6, 7, 8) mode or a dense, corrosion-resistant material, in particular special steel, and a pressuretight outer vessel (1) which has a shell (11), a transition part (12), a neck part (13) and a base part (12). The base part (2) and/or the transition part (12) with the neck part (13) are/is arranged inside a cylindrical or slightly conical end region of the shell (11) The base part (2) or the transition part (12) has an outer collar (4) which runs, at least in sections, approximately parallel to the end region of the shell (11), to which it Is collected by a structural connection (9). It is particularly advantageous if the structural connection is a welded (9) or hard-soldered joint and the joint is located at a distance (a) from the inner base (5) considerably greater than the wall thickness (d) of the shell (1), preferably greater than twice the wall thickness (d). The outer vessel (1) can be made of highly tempered steel, e g, 34CrMo4, without sustaining damage. The invention makes it pos-sible to manufacture comparatively light pressure vessels, e g, for high-purity gases
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