一种带焊接接管的换热器壳体静态有限元分析  

Static Finite Element Analysis of a Heat Exchanger Shell with Welded Pipes

作　　者：王旭鹏 徐学利[1] 张盟军[2] WANG Xupeng;XU Xueli;ZHANG Mengjun(School of Materials Science and Engineering,Xi＇an Shiyou University,Xi＇an 710065,China;Baoji Petroleum Steel Pipe Co.,Ltd.,Baoji 721008,Shoanxi,China)

机构地区：[1]西安石油大学材料科学与工程学院,西安710065 [2]宝鸡石油钢管有限责任公司,陕西宝鸡721008

出　　处：《焊管》2018年第9期30-33,共4页Welded Pipe and Tube

摘　　要：针对规则设计方法不能分析焊接接管后壳体的承压能力的问题,利用ANSYS有限元分析软件对焊接接管后的壳体进行结构静力计算,发现壳体最大位移发生在未连接外接管的封头部位,最大应力发生在壳体外表面焊接支座的连接部位,壳体各处均未出现塑性变形,且最大应力小于45钢的许用应力,根据第一强度理论,换热器壳体满足强度要求。说明ANSYS有限元分析软件能够有效对带有接管的管壳式换热器壳体进行强度验证,为壳体整体强度满足设计要求提供了技术支持。For the conventional design method, the problem of the bearing capacity of the shell after welding pipe could not be analyzed. The structural static calculation of the shell after welding pipe was carried out by ANSYS finite element analysis software. It was found that the maximum displacement of the shell occurs in the head of the unconnected outer tube. The maximum stress occurs at the joint of the welding support on the outer surface of the shell. No plastic deformation occurs in the shell, and the maximum stress was less than the admissible stress of 45 steel. According to the first strength theory, the heat exchanger shell meet the strength requirements. The calculation results show that ANSYS finite element analysis software can effectively verify the strength of the heat exchanger shell and provide technical support for the shell strength design requirements.

关 键 词：换热器 壳体 ANSYS 静力分析 

分 类 号：TG407[金属学及工艺—焊接]