摘要
对一座20000m^3外浮顶罐浮盘及支柱的失效进行了理论分析,认为支柱减薄是引起浮盘失效的直接原因。同时指出,若在油罐支柱无意外减薄情况下仍然采用现行的支柱设计原则,在单盘及两个浮舱进油后不采取合理措施,此时停罐落盘,则浮盘和支柱仍要发生事故。因此,进行支柱及浮船的稳定性枝核,细化储罐的操作规程并采取相应措施,此类事故是可以避免的。
An analysis on the failures of floating roof and supporting legs in a 20 000 m3 tank has been made. It is considered that the thinning of the leg-wail is a major cause of the floating roof's failure. Meanwhile,it is pointed out that if the current design principle for supporting-leg is still to be adopted,the failures of floating roof and supporting-legs will not be avoided as yet when a large quantity of oil is unexpectely stored on the floating roof and any 2 pontoons. Therefore)conducting stability checking for the supporting-leg and floating roof and taking effective countermea-sures against the failures,this kind of accident can be avoided.
出处
《油气储运》
CAS
北大核心
1999年第5期8-11,共4页
Oil & Gas Storage and Transportation
关键词
外浮顶罐
浮顶
支柱
失效原因
计算
油罐
outer floating roof tank,floating roof,supporting leg,failure,cause,analysis,calculation
