高压聚乙烯装置超高压反应管内腐蚀缺陷有限元分析  

Finite Element Analysis of Corrosion Defects in Ultrahigh Pressure Polythene Reaction Tube

作　　者：任世科[1] 刘雪梅[1] 张振杰[1] 

机构地区：[1]中国石油兰州石化公司研究院

出　　处：《化工机械》2015年第2期245-248,共4页Chemical Engineering & Machinery

摘　　要：基于Von Mises屈服准则,采用有限元弹塑性分析方法对含腐蚀缺陷的高压聚乙烯装置超高压反应管道的应力分布进行有限元分析,研究腐蚀缺陷的长度、宽度和深度对压力管道极限载荷的影响,把分析得到的临界失效状态下的壁厚作为超高压管道爆破的安全阈值。Based on Von Mises yield criterion,making use of the finite element method to analyze stress distributions in LDPE ultrahigh pressure reaction tube with corrosion defects inside was implemented,including having the length,width and depth influence of corrosion defects on the limit load of pressure pipeline discussed. The wall thickness from the analysis in the critical failure conditions can be taken as the safety threshold.

关 键 词：管道 超高压管式反应器 腐蚀缺陷 极限载荷 有限元分析 

分 类 号：TQ055.81[化学工程]