出口集合管盲板腐蚀分析及优化结构影响研究  

Corrosion Analysis and Structural Optimization of Outlet Manifold Blind Plate

作　　者：郭福平[1] 陈文红 陈志静[1] 

机构地区：[1]广东石油化工学院机电工程学院,茂名525000 [2]中国石油化工股份有限公司茂名分公司,茂名525000

出　　处：《腐蚀与防护》2015年第6期582-585,共4页Corrosion & Protection

基　　金：广东省石化装备故障诊断重点实验室开放课题(GDUPTKLAB201324);广东省茂名市科技计划项目(201316)

摘　　要：针对某炼油企业重整装置四合一加热炉出口集合管盲板法兰腐蚀现象,进行了腐蚀机理分析,再利用FLUENT数值模拟软件,计算分析了出口集合管盲板改进结构前后的速度失量图和涡量图等,分别得出与腐蚀现状相吻合和优化后的结构可以有效避免出口集合管盲板法兰腐蚀的结论,最后对改进后盲板结构对炉管流量分布是否影响进行探究。Aiming at the corrosion status of a refinery reformer unit four-in-one furnace outlet collecting pipe blind flange, the corrosion mechanism was analyzed, and then a numerical simulation using FLUENt software was coducted, to analyze the velocity vector diagram and vorticity cloud diagram of the outlet manifold blind plate before and after the structure improvment, It is concluded that the structure after optimization and in conformity with the present situation of corrosion could effectively avoid the corrosion of outlet manifold blind flanges. Whether the improved blind plate struetrue has an effect on the furnace tube flow distribution was discussed.

关 键 词：重整加热炉 腐蚀机理 数值模拟 流量分布 集合管 

分 类 号：TG174[金属学及工艺—金属表面处理] TQ054[金属学及工艺—金属学]