压力容器碟形封头内压下的弹性失稳的分析  

Analysis for Elastic Instability of Pressure Vessel Dished Head under Internal Pressure

作　　者：孙捷飞 黄月 Sun Jiefei;Huang Yue(Tieling CNPC Machinery Equipment Manufacturing Co.,Ltd.,Tieling 112000;Shenyang Shanmeng Petrochemical Equipment Manufacturing Co.,Ltd.,Shenyang 110141)

机构地区：[1]铁岭中油机械设备制造有限公司,铁岭112000 [2]沈阳山盟石化设备制造有限公司,沈阳110141

出　　处：《中国化工装备》2023年第1期45-48,共4页China Chemical Industry Equipment

摘　　要：压力容器封头,作为压力容器的主要部件之一,其结构形式已经十分成熟,以受力情况进行排序,最优的是球形封头,其次是椭圆形封头、然后是碟形封头,平盖封头受力最差,其中受力好的封头形式计算厚度相对较薄。然而在计算的过程中遇到了一些计算不合格的情况,通过查阅资料和标准对该情况进行理论分析,并采用解析解和应力分析的方法对封头最小厚度进行了详细的计算,最终可以节省材料40%。As one of the main components of the pressure vessel,the head of the pressure vessel has a very mature structure.According to the stress situation,the first is the spherical head,the second is the elliptical head,and the third is the dished head.The flat head is the worst one,and the calculated thickness of the well-stressed head is relatively thin.However,in the process of calculation,some unqualified cases were encountered.By consulting the data and standards,the situation was analyzed theoretically,and the minimum thickness of the head was calculated in detail by analytical solution and stress analysis.Finally,the material could be saved by 40%.

关 键 词：碟形封头 内压弹性失稳 应力分析计算 

分 类 号：TH49[机械工程—机械制造及自动化]