Construction of Pressure Vessel Using Thin Inner Shell Wound Cross-Helically by Interlocking Strips

This paper describes the construction of a new type pressure vessel using thin shell cross-helically wound interlocking steel strip, based on the technologies of interlocking strip-wound developed by Germany and flat steel ribbon wound by China which are code cases listed in ASME BPVC. Analysis and comparison between the new and the traditional structure types, and discussion on issues such as their stress characteristics, operation safety and manufacturing methods etc. are presented. It shows this new method of pressure vessel construction is feasible, cost effective, and well deserved of further studies.