According to the statistics and analysis of international and domestic oilcan accident,the trouble rate of the dome oilcan keeps highest.It is thus clear that the risk of dome oilcan is great.

• 据国际国内关于油品储罐的事故统计和分析,拱顶储油罐的事故率最高,可见该类型储罐风险大,由于影响储罐安全运行的因素很多,任何一个环节出问题,都可能引发重大事故。