Finite Element Analysis of Sealing Performance of Rubber D-Ring Seal in High-Pressure Hydrogen Storage Vessel

被引：45

作者：

Zhou C. ^{[1
]}

Chen G. ^{[1
]}

Liu P. ^{[2
]}

机构：

[1] School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou

[2] Institute of Chemical Machinery and Process Equipment, School of Energy Engineering, Zhejiang University, Hangzhou

来源：

Journal of Failure Analysis and Prevention | 2018年 / 18卷 / 04期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Finite element analysis (FEA); High-pressure sealing; Hydrogen storage vessel; Rubber ring; Swelling;

D O I：

10.1007/s11668-018-0472-y

中图分类号：

学科分类号：

摘要：

Sealing structures of high-pressure hydrogen storage vessel are always considered as one of the significant components. This paper aims to study the sealing performance of the combined sealing structure composed of a rubber D-ring and a wedge-ring used in high-pressure hydrogen storage vessel by elucidating the swelling mechanisms due to dissolved hydrogen. Comparisons of the sealing performance between the D-ring and the O-ring are made in terms of the effects of some important factors including the wedge-ring, hydrogen pressure and swelling. Three aspects of conclusions are obtained by FEA: (1) The wedge-ring with a wedge angle 45° is the most suitable, compared with the angles 30° and 60°, irrespective of the shape of rubber rings. (2) The peak contact stress for the D-ring seal is larger than that for the O-ring seal under hydrogen pressure range 0–100 MPa. (3) The O-ring seal could be replaced well by the D-ring seal, whereas the design height of the seal groove should be larger for the D-ring seal than for the O-ring seal due to swelling effect, in order to prevent the D-ring seal from extrusion through the upper side of the seal groove. © 2018, ASM International.

引用

页码：846 / 855

页数：9

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