气固输送尾气管道弯头结构的有限元应力分析
Finite Element Stress Analysis of Elbow Structure of Gas Solid Transportation Tail Gas Pipeline
张敬亮 1韩美帅 2吴肖文 2陈英华 2苗雯禹 2李海生2
作者信息
- 1. 江苏中能硅业科技发展有限公司
- 2. 中国矿业大学化工学院
- 折叠
摘要
为了准确评价气固输送尾气管道弯头的安全稳定性,分别选取了反应器出口尾气管道的高温段弯头和低温段弯头为研究对象,建立了三维几何结构模型并进行网格划分,在温度、压力载荷耦合作用下开展了管道弯头的有限元分析计算,研究了2个管道弯头的应力与应变的分布特征与规律,探索了结构模型变形量分布及形成机理,对管道弯头安全性和稳定性进行了合理评价.结果表明,在温度和压力载荷作用下,两段管道弯头结构安全性和稳定性较好,但高温段管道弯头的斜切喷射管H2、低温段管道弯头斜切接管L1,都存在应力集中、应变和变形明显增大的问题,这主要与外部载荷、接管位置、安装条件和管系结构等因素相关.
Abstract
In order to accurately evaluate the safety and stability of exhaust pipe elbows for gas-solid transportation,the high-temperature and low-temperature section elbows of the reactor outlet exhaust pipe were selected as the research objects,and a three-dimensional geometric structure model was established and mesh division was carried out.Finite element analysis and calculation of pipeline elbows were carried out under the coupling effect of temperature and pressure loads.The distribution characteristics and laws of stress and strain of two pipeline elbows were studied,and the distribution and formation mechanism of structural model deformation were explored.The safety and stability of pipeline elbows were reasonably evaluated.The results showed that under the action of temperature and pressure loads,the safety and stability of the structure of the two-section pipe elbow were good.However,the beveled jet pipe H2 of the high-temperature section pipe elbow and the beveled connection pipe L1 of the low-temperature section pipe elbow both had problems of stress concentration,significant increased in strain and deformation,which were mainly related to external loads,the location of the connection pipe,installation conditions,and the structure of the piping system.
关键词
尾气管道/弯头/有限元分析/应力/变形Key words
Tail gas pipeline/Elbow/Finite element analysis/Stress/Deformation引用本文复制引用
基金项目
徐州市重点研发计划项目(KC19217)
国家自然科学基金资助项目(51674259)
出版年
2024
NETL
NSTL
万方数据