Analysis of Sealing Performance of Metal B-ring Self-Tightening Structure

Process industries often use B-ring self-tightening sealing structures and rely on interference assembly to meet the initial requirements. Therefore, determining reasonable material, size is crucial ensure performance of structure. In this paper, based elastic deformation analysis, co-ordination equation a structure was established, contact pressure calculation formula obtained, with discussion main factors affecting performance. With finite element method, transient temperature field analysis carried out for startup shutdown load cases, assembly, shutdown. Based evaluation criteria proposed rate leakage parameters, effects material properties, interference, size, etc., were investigated, revealing that although high yield stress can requirements, both surface reactor body will plastic deformation. B-rings low exhibit obvious during leak However, parameters be minimized by smaller moderate wave radius.