高强轻质重整加热炉管板结构优选与优化分析  

Optimization and Optimization Analysis of Tubesheet Structure for High-strength Light-weight Reforming Heating Furnace

作　　者：丁宇奇[1] 成佳浩 芦烨 王学勇 叶碧涛 谢清 卢宏 DING Yu-qi;CHENG Jia-hao;LU Ye;WANG Xue-yong;YE Bi-tao;XIE Qing;LU Hong(College of Mechanical Science and Engineering,Northeast Petroleum University)

机构地区：[1]东北石油大学机械科学与工程学院

出　　处：《化工机械》2021年第2期218-223,250,共7页Chemical Engineering & Machinery

基　　金：黑龙江省博士后基金项目(LBH-Q20082);国家自然科学基金项目(51604080)。

摘　　要：对流段中间管板作为重整加热炉内对流盘管的关键支撑部件,高强度轻质量的管板结构对于重整加热炉装置大型化的发展具有重要意义。以直板形、波浪形和直板加筋肋形对流段中间管板为研究对象,建立管板结构的三维有限元模型,对管板结构在高温工况下的应力和变形进行分析并进行结构优选。结果表明:相同管排数目、相同开孔数目和相同管板结构尺寸时,采用波浪形对流段中间管板可获得余量最大的管板强度。另外,以管板质量为目标函数、管板厚度为设计变量、管板最大应力为状态变量对管板结构进行了优化设计,管板厚度由25mm减至20mm,质量由517.1kg降至413.6kg,减轻了20%,使之既满足了强度要求又满足了经济性要求。Acting as the key supporting component in convection section in reforming heating furnace,the tube-sheet structure boasting of high strength and light weight means great to the development of large-scale reforming heating furnace.In this paper,through taking the convection intermediate tube-sheet such as the straight plate type,wave type and straight plate reinforcement type as the objects of study,the tube-sheet structure's 3D finite element model was established to analyze its stress and deformation under hightemperature working conditions and to optimize its structure.The results showed that,for the same number of rows and openings and the same tube-sheet structure size,the tube-sheet's maximum strength at the greatest margin can be obtained while adopts a wave convection intermediate tube-sheet.In addition,through having the tube-sheet mass taken as the objective function,the thickness as the design variable and the maximum stress as the state variable,the tube-sheet structure was optimized,i.e.the tube-sheet thickness is reduced from 25mm to 20mm,and the mass is reduced from 517.1kg to 413.6kg,and the mass is reduced by 20%.In this way,both the strength and economy requirements towards the tube-sheet can be satisfied.

关 键 词：管板 重整加热炉 有限元模型 结构优选 优化分析 

分 类 号：TQ054.9[化学工程]