压力容器2017，Vol.34Issue(6)：19-26,13,9.DOI:10.3969/j.issn.1001-4837.2017.06.004
大型脱轻塔整体热处理的应力分析
Stress Analysis of Entire Heat Treatment of Large Light Ends Column
张鹤词 1樊黎霞1
作者信息
- 1. 南京理工大学 机械工程学院,江苏 南京 210094
- 折叠
摘要
Abstract
The large pressure vessel is generally rolled in the workshop,assembly welded into the tube in the construction site and then block lifted and welded into a whole.For some pressure vessels,it is necessary to eliminate the residual stress after welding.In the technical standard,the entire heat treatment is the preferred heat-treatment process.However,in the condition of high temperature,the structural strength of the large vessel reduces and the crush perhaps happens during the process.The FEA software ABAQUS is used to analyse the stress of a light ends column in a chemical device during the process of heat preservationin all possibleworking conditions.The results show that during the process of heat preservation,the strength,rigidity and stability of the light ends column meet the requirements and the thermal stress is much larger than the that by the weight or the wind load.At present,the light ends column has been heat treated successfully.It can be used as reference for the strength,rigidity and stability analysis of large tower-type pressure vessel in the process of entire heat treatment.关键词
塔式压力容器/整体热处理/强度/稳定性/有限元Key words
tower-type pressure vessel/entire heat treatment/strength/stability/finite element分类
机械制造引用本文复制引用
张鹤词,樊黎霞..大型脱轻塔整体热处理的应力分析[J].压力容器,2017,34(6):19-26,13,9.
