焦炭塔裙座与简体连接区域应力分析

摘要

Taking skirt-to-shell attachment area as the object, the influence of four different attachment types like the butt-weld type, lap-weld type, overlay weld type and total forging type on the mechanical stress intensity were analyzed with ANSYS. The results show that the attachment type influences the maximal mechanical stress little; and compared to butt-weld type and lap-weld type, only forging type and overlay weld type can present a minimum stress concentration, and the stress value from lap-weld type is high.%以焦炭塔失效的敏感部位——筒体与裙座连接处附近区域为研究对象,采用大型有限元分析软件ANSYS,分析、比较了4种不同的连接形式(一般对焊型、搭接型、堆焊型和整体煅焊型)对机械应力强度的影响.结果表明,连接形式对最大机械应力的影响并不明显,从连接处的应力值来看,整体煅焊型和堆焊型结构明显比另外两种结构好,搭接型的应力值最高.