全氢罩式退火炉CAE仿真

CAE simulation on bell-type annealing furnace with high performance hydrogen

为进行全氢罩式退火炉的研制和工艺优化,采用计算流体力学(Computational Fluid Dynamics,CFD)方法仿真计算其整个加热过程.根据全氢罩式退火炉加热机理建立CAE仿真模型,仿真计算其流场和温度场;采用标准k-ε模型计算炉内三维湍流流动过程的湍流脉动;采用FLUENT的组分输运与化学反应模型模拟炉内化学反应,其中湍流化学反应相互作用采用涡-耗散(Eddy Dissipation,ED)模型.将该CAE仿真模型用于某钢厂的全氢罩式退火炉,得到钢卷加热特性曲线,该曲线与理论退火曲线吻合良好,证明该CAE仿真模型的正确性.

As to the development and process optimization of bell-type annealing furnaces with high performance hydrogen,the heating process is simulated and calculated by Computational Fluid Dynamics（CFD） method.The CAE simulation model is established according to the heating mechanism of bell-type annealing furnaces with high performance hydrogen and its flow field and temperature field are simulated;the turbulent fluctuation in the 3D turbulence flow process of furnace is calculated by standard k-ε model;the chemical reaction in the furnace is simulated by the component transport and chemical reaction model of FLUENT,and the interaction of turbulent chemical reaction is based on Eddy Dissipation（ED） model.The CAE simulation model is applied to a bell-type annealing furnace with high performance hydrogen of a steel plant,the heating characteristic curve of steel roll is obtained,the curve is in good accordance with theoretical annealing curve,so the CAE simulation model is validated.