Session: OAC-01-02 Risk Management and Hazard Analysis

Paper Number: 106697

106697 - A Survey of Failure Rate of In-Service Pressure Vessels in China's Non-Nuclear Industry 

Failure rate is very important for the reliability and risk assessment of in-service pressure vessels. As early as in the 1970s and 1980s, the failure rate data of in-service pressure vessels was collected in various countries, such as Europe and the United States, and in great detail. These data was incorporated into the relevant reliability database such as OREDA, CEMHD5, etc. However, the failure rate data of pressure vessels in China is rarely reported so far, which limits the development of reliability and risk assessment technology for the pressure vessels in non-nuclear and nuclear industries. In this paper, there were about fifty thousand of in-service pressure vessels data in China's non-nuclear industry was collected. The potential and catastrophic failure rate was counted based on exponential distribution model. The statistical results were compared and analyzed with those of other countries such as the United States, Britian and Germany. The analysis results showed that the thickness thinning and cracking caused by corrosive medium were two main factors which influenced the reliability of in-service pressure vessels. The failure rate of in-service pressure vessels in China is higher than that in the Europe and the United States countries, which may be caused by the high sulfur and acid crude oil, and construction quality in China’s refining industry.

Presenting Author: Libin Song China Special Equipment Inspection and Research Institute

Presenting Author Biography: Li-Bin Song, born in 1989, is currently a senior engineer at China Special Equipment Inspection and Research Institute. his master degree from Dalian University of Technology, China, in 2014. His research interests include safety assessment and failure analysis of pressure equipment. Tel: +86-10-59068951; E-mail: songlibin.917@163.com

Authors:

Libin Song China Special Equipment Inspection and Research Institute
Jun Li China Special Equipment Inspection and Research Institute
Zhiyuan Han China Special Equipment Inspection and Research Institute
Guoshan Xie China Special Equipment Inspection and Research Institute
Guide Deng China Special Equipment Inspection and Research Institute
Zhifeng Li China Special Equipment Inspection and Research Institute