采油树输油管道三通应力分析与结构优化  

Stress Analysis and Structural Optimization of Oil Pipeline T-joint of Christmas Tree

作　　者：刘昌领[1] 罗晓兰[1] 叶道辉[2] 段梦兰[1] 

机构地区：[1]中国石油大学(北京)海洋油气研究中心,北京102249 [2]江汉钻头股份公司,武汉430000

出　　处：《机械制造》2013年第7期5-9,共5页Machinery

基　　金：国家863高新技术发展项目(编号:2012AA09A205)

摘　　要：针对某1 500 m水深油田采油树管道上的三通,用有限元分析三通上有无温度载荷作用的影响,结果表明,考虑温度后的三通应力增大了33.85倍。对影响三通整体应力的因素进行了分析,结果表明,支管壁厚是影响三通承载能力最主要的因素,其次是主管壁厚、主管外径和支管外径。在此基础上对三通结构进行了优化,使三通最大等效应力减小了9.19%。Aiming at the T-joint on Christmas tree pipeline at a oil field with 1500m water depth,the finite element analysis is adopted to check if the T-joint is impacted by temperature loading.The results show that the stress on the T-joint is increased by 33.85 times when the temperature is taken into account.The results gained by the analysis of the factors that affect the overall stress of the T-joint show that the wall thickness of the branched pipeline is the most important factor,followed are the wall thickness of the main pipe,O.D.of the main pipe and O.D.of the branched pipe.After optimization of the T-joint structure on this basis,the maximum equivalent stress of the T-joint is reduced by 9.19%.

关 键 词：异径三通 有限元分析 结构优化 

分 类 号：TH123[机械工程—机械设计及理论] TQ055.8[化学工程]