辊底式辐射管加热炉的建模与加热过程数值模拟  

Modeling and numerical simulation of heating process for roller hearth furnace with radiant tube heating

作　　者：孔浩然 庞玉华[1] 高强 李鹤 孙琦[1] Kong Haoran;Pang Yuhua;Gao Qiang;Li He;Sun Qi(School of Metallurgical Engineering,Xi'an University of Architecture and Technology,Xi'an Shaanxi 710055,China;School of Energy and Environment,Southeast University,Nanjing Jiangsu 210096,China)

机构地区：[1]西安建筑科技大学冶金工程学院,陕西西安710055 [2]东南大学能源与环境学院,江苏南京210096

出　　处：《金属热处理》2025年第1期250-254,共5页Heat Treatment of Metals

基　　金：陕西省重点研发计划(2020GY-253)。

摘　　要：为研究钢板加热过程中在加热炉内板坯的加热特性,基于辊底式辐射管加热炉,利用FLUENT建立了加热炉的计算流体力学(CFD)高精度模型,对钢板加热过程(加热温度873.5 K,加热时间135 min)进行数值模拟,并对模拟结果进行了试验验证。模拟结果表明,加热段板坯温度迅速上升,表面温度较高,但钢板整体温度未显示出较大差异,说明板坯整体热量传递较为均匀;经对比,CFD加热模型和试验钢板平均温度最大误差仅5 K,误差小于1%,表明试验与模拟具有很好的一致性。In order to study the heating characteristics of steel plate in the heating furnace during heating process,a high-precision computational fluid dynamics(CFD) model of the heating furnace was established by using FLUENT based on a roller hearth furnace with radiant tube heating.The heating process of the steel plate,heating temperature of 873.5 K and heating time of 135 min,was numerically simulated,and the simulation results were experimentally verified.The simulation results show that the temperature of the steel plate in heating stage rises rapidly,with a higher surface temperature,but the overall temperature of the steel plate does not show significant differences,indicating that the overall heat transfer of the steel plate is relatively uniform.The comparison between the CFD heating model results and the experimental results shows that the maximum error in the average temperature of the steel plate is only 5 K,with an error of less than 1%,indicating good consistency between the experiment and simulation.

关 键 词：辊底式辐射管加热炉 计算流体力学(CFD)模型 加热过程 数值模拟 

分 类 号：TG155.1[金属学及工艺—热处理]