大直径薄壁卧式压力容器的设计  

DESIGN OF HORIZONTAL PRESSURE VESSELS WITH LARGE DIAMETER ANDTHIN WALL

作　　者：郭为民 

机构地区：[1]中石化洛阳工程有限公司,河南洛阳471003

出　　处：《石油化工设备技术》2013年第4期1-3,5,共3页Petrochemical Equipment Technology

摘　　要：卧式容器是压力容器中最常见的结构型式。大直径的薄壁卧式容器,其壳体的厚度往往不是由内压强度,而是由支座截面处的局部应力决定的。为解决这个问题,采用增加壳体厚度这种方法虽然最简单,但得到的壳体厚度较大。通过改变鞍座的型式,增大鞍座包角,可有效减小壳体厚度。最好的方案是设置加强圈,可最大限度地降低工程量,获得理想的结构设计方案。Horizontal vessels are the most common structure type of pressure vessels.For horizontal vessels with large diameter and thin wall,its wall thickness of shell is usually determined by local stress at saddle section instead of inner pressure intensity.To solve the problem,increasing the thickness is the simplest way,but the thickness needed is comparatively big.Modifying the style of saddle and enlarging the angle of saddle can effectively decrease the wall thickness of shell.And the best method is to setstiffening rings,which can reduce quantities as many as possible and achieve ideal structural design scheme.

关 键 词：薄壁 卧式容器 壳体厚度 局部应力 结构设计 加强圈 

分 类 号：TH49[机械工程—机械制造及自动化]