高温烟气管道膨胀节稳定失效分析与设计优化  

Stability failure analysis and design optimization of expansion joint of high temperature flue gas pipeline

作　　者：刘广厦 何海科 王佳博 李世乾 LIU Guangsha;HE Haike;WANG Jiabo;LI Shiqian(CHN Energy Xinjiang Chemical Co.,Ltd.,Urumqi 831400,China;CNPC east China design Institute,Qingdao 266000,China;Luoyang Sunrui Special Equipment Co.,Ltd.,Luoyang 471000,China)

机构地区：[1]国能新疆化工有限公司,乌鲁木齐831400 [2]中石油华东设计院,山东青岛266000 [3]洛阳双瑞特种装备有限公司,河南洛阳471000

出　　处：《压力容器》2024年第2期66-71,共6页Pressure Vessel Technology

摘　　要：针对某甲醇制烯烃(MTO)装置再生烟气管道波纹管膨胀节稳定失效的故障,分析了管道支座布置和操作工况变化对膨胀节稳定性的影响,结合管道热位移、盲板力的计算,证明了管道支座的选型及合理布置是保证膨胀节安全、有效服役的关键。提出了膨胀节的改造应用方案和治理措施,为类似工况膨胀节的应用和失效预防提供了经验。For the stability failure of bellows expansion joint in the regenerated flue gas pipeline of a methanol to olefin(MTO)plant,the influences of pipeline support arrangement and the varying operating conditions on the stability of expansion joint were analyzed.Combined with the calculation of pipeline thermal displacement and blind plate force,it proves that the selection and reasonable arrangement of pipeline support are the key to ensure the safe and effective operation of the expansion joint.At the same time,the application scheme and treatment measures of the expansion joint were put forward,which provides experience for the application and failure prevention of expansion joint under similar working conditions.

关 键 词：膨胀节 盲板力 支座 稳定失效 

分 类 号：TH49[机械工程—机械制造及自动化] TQ055.8[化学工程]