Vulnerability analysis of storage tank considering protective layer under impact of blast fragment

被引：0

作者：

Chen, Guohua ^{[1
,2
]}

Zhao, Yixin ^{[1
,2
]}

Zhou, Lixing ^{[1
,2
]}

Yang, Peng ^{[1
,2
]}

Zeng, Tao ^{[1
,2
]}

Zhao, Yuanfei ^{[3
]}

机构：

[1] Institute of Safety Science & Engineering, South China University of Technology, Guangzhou,510641, China

[2] Guangdong Provincial Science and Technology Collaborative Innovation Center for Work Safety, Guangzhou,510641, China

[3] Guangdong Academy of Safety Science and Technology, Guangzhou,510060, China

来源：

Huagong Jinzhan/Chemical Industry and Engineering Progress | 2020年 / 39卷 / 11期

关键词：

The protective layer of the storage tank is one key safety barrier technology that reduces the risk of domino effect accident of blast fragments in chemical industry parks. The limit state equation and probability model of chemical storage tank under the protection of Al and ultra-high molecular weight polyethylene (UHMWPE) fiber protective layer were established for the exploration on the reduction degree of failure probability caused by explosion debris with the different protective layer. Monte-Carlo simulation method was used to plot the vulnerability curves of the target tank under these influences. The influence of the protective layer with different thickness; material; layering number and coupling mode on accident effects of blast fragment was analyzed. The results showed that the protective layer of these two materials could significantly reduce the failure probability of the target tank with over 80%. The thickness of the protective layer was the key factor associated to reduction degree. Additionally the vulnerability of the storage tank showed a higher sensitivity to thickness change under the protection of the Al protective layer compared to the UHMWPE fiber protective layer. The failure probability of the tank gradually decreases with the increase of the number of layers when the total thickness of Al protective layers was same. A higher reduction degree of the failure probability was observed by multi-layered protective layer coupled with two materials than single Al. This study can provide an important guidance for rational material selection and structure design of the protective layer for chemical storage tanks in actual working conditions; improving the resilience of chemical process equipment. © 2020; Chemical Industry Press Co; Ltd. All right reserved;

D O I：

10.16085/j.issn.1000-6613.2020-0209

中图分类号：

学科分类号：

摘要：

引用

页码：4749 / 4756