取向硅钢常化炉气体射流冷却传热特性研究  

Heat transfer characteristics investigation of gas jet cooling in an oriented silicon steel normalisation furnace

作　　者：刘向荣 刘婷[1] 郭小龙 骆新根 郭悦[1] 程朝阳[1] 戴方钦[1] 戴惠磊 Liu Xiangrong;Liu Ting;Guo Xiaolong;Luo Xingen;Guo Yue;Cheng Zhaoyang;Dai Fangqin;Dai Huilei(Wuhan University of Sinence and Technology;Central Research Institute(Qingshan),Baoshan Iron and Steel Co.,Ltd.;Hunan Hongwang New Material Technology Co.,Ltd.)

机构地区：[1]武汉科技大学省部共建耐火材料与冶金国家重点实验室 [2]宝山钢铁股份有限公司中央研究院(青山) [3]湖南宏旺新材料科技有限公司

出　　处：《冶金能源》2024年第5期23-27,共5页Energy For Metallurgical Industry

基　　金：国家自然科学基金资助项目(52274393);湖北省教育厅中青年人才资助项目(Q20211106)。

摘　　要：为改善取向硅钢常化冷却段带钢的冷却效果,利用数值模拟软件Fluent计算了不同进气压力、带钢厚度、带钢运动速度、喷射高度和喷嘴间距情况下气体射流冷却的传热特性。计算结果表明:冷却后带钢的平均温度随带钢厚度、运动速度、喷嘴间距和喷嘴高度增大而增加,与进气压力呈负相关;进气压力、带钢厚度及运动速度主要影响带钢的温降速率,带钢宽度方向温度分布取决于喷射高度和喷嘴间距,喷射高度300 mm及喷嘴间距75 mm时带钢温度均匀性较好。计算结果为带钢实际生产提供理论指导。In order to improve the cooling effect of the strip in the normalised cooling section of oriented silicon steel,the heat transfer characteristics of gas jet cooling under different inlet pressures,strip thickness,strip movement speed,jet height and nozzle spacing are calculated using the numerical simulation software Fluent.Calculations show that the average temperature of the strip after cooling increases with strip thickness,movement speed,nozzle spacing and nozzle height,and is negatively correlated with the value of the inlet pressure.The inlet pressure,the thickness of the strip and the speed of movement mainly affects the rate of temperature drop of the strip,strip temperature uniformity along the width depends on the height of the jet and the nozzle spacing,the temperature uniformity of the strip is better when the spray height is 300 mm and the nozzle spacing is 75 mm.The calculation results provide theoretical guidance for the actual production of strip steel.

关 键 词：取向硅钢 常化冷却 气体射流 传热特性 温度均匀性 

分 类 号：TG142.1[一般工业技术—材料科学与工程]