甲醇合成塔的失效分析  

Failure Analysis on Methanol Converter

作　　者：周志祥[1] 施纯文[1] ZHOU Zhi-xiang;SHI Chun-wen(East China Engineering Science and Technology Co.,Ltd.,Hef ei Anhui 230024,China)

机构地区：[1]东华工程科技股份有限公司,安徽合肥230024

出　　处：《化肥设计》2018年第5期22-25,共4页Chemical Fertilizer Design

摘　　要：对在役管壳式甲醇合成塔壳程筒体与管板之间焊缝开裂进行了失效分析,对甲醇合成塔的壳程结构设计和选材进行了优化;同时,应用有限元软件ANSYS Workbench14.5对于大直径(DN4 200mm)甲醇合成塔的管束、管板及与其连接的壳体进行了稳态热分析与结构分析间接耦合的线弹性应力分析,并对计算结果进行了安全评定,保证了设备的本质安全性和运行的可靠性。This paper conducts failure analysis on the welding seam cracking between shell cylinder and tube plate o~ shell and tube methanol converter in service and optimizes the design and material selection of the shell structure of methanol converter. Besides, it employs finite software-ANSYS Workbench 14.5 to conduct steady thermal analysis, structural analysis and linear elastic stress analysis of indirect coupling on the tubebundle and tube plate of methanol converters with big diameters（DN 4200mm）and their connected shells. It also conducts safety evaluation onthe calculation result and guarantees the intrinsic safety and operation reliability of the equipment.

关 键 词：甲醇合成塔 稳态热分析 结构分析 安全评定 

分 类 号：TQ223.121[化学工程—有机化工]