铝带材热处理气垫炉内流动漂浮过程数值模拟及结构优化
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摘要
基于洛阳某铝厂设计的气垫炉结构,建立了气垫炉整体的三维物理数学模型,运用流固耦合FSI分析方法,得到了铝带材热处理气垫炉内的流场分布和铝带材表面的压力分布,以及带材在气垫炉内漂浮换热过程中的变形量。以减小漂浮过程中铝带材的变形量为目的,对气垫炉内导流板和狭缝喷嘴宽度进行改造,结果表明,改造后铝带材最大形变量为13.2 mm,较改造前减少了22.2 mm。
Based on the air cushion furnace structure designed by an aluminum plant in Luoyang city,the three-dimensional physical and mathematical model of the air cushion furnace for aluminum strip heat treatment was established.The flow field distribution in the air cushion furnace and the pressure distribution on the surface of the aluminum strip were obtained by using the fluid solid coupling FSI analysis method,and the deformation amount of the strip during the heat transfer process in the air cushion furnace was also obtained.In order to reduce the deformation of the aluminum strip in the floating process,the width of the guide plate and the slit nozzle in the air cushion furnace was reformed.The results show that the maximum deformation amount of the aluminum strip is 13.2 mm after the reformation,and 22.2 mm is reduced compared with that before.
Based on the air cushion furnace structure designed by an aluminum plant in Luoyang city,the three-dimensional physical and mathematical model of the air cushion furnace for aluminum strip heat treatment was established.The flow field distribution in the air cushion furnace and the pressure distribution on the surface of the aluminum strip were obtained by using the fluid solid coupling FSI analysis method,and the deformation amount of the strip during the heat transfer process in the air cushion furnace was also obtained.In order to reduce the deformation of the aluminum strip in the floating process,the width of the guide plate and the slit nozzle in the air cushion furnace was reformed.The results show that the maximum deformation amount of the aluminum strip is 13.2 mm after the reformation,and 22.2 mm is reduced compared with that before.
引文
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[3]吉本弘,川手贤治,耿青方.气垫式连续热处理---大同方式[J].轻合金加工技术,1986(1):9-13.吉本弘,川手賢治,真青の方.Air cushion furnace-Datong method[J].Light Alloy Fabrication Technology,1986(1):9-13.
[4]Daborn P M,Ind P R,Ewins D J.Enhanced ground-based vibration testing for aerodynamic environments[J].Mechanical Systems and Signal Processing,2014,49(1/2):165-180.
[5]陈文修,何英和,刘非轼,等.气垫式金属板带材连续热处理炉内气体动力过程的研究[J].中南矿冶学院学报,1987(2):31-36.Chen Wenxiu,He Yinghe,Liu Feishi,et al.Study on gas dynamic process in air cushion furnace[J].Journal of Central South University,1987(2):31-36.
[6]侯帅,王超,王坤,等.气垫炉缝隙喷嘴传热特性研究[J].轻合金加工技术,2013,41(3):45-48.Hou Shuai,Wang Chao,Wang Kun,et al.Study on heat transfer characteristics of slot nozzle in air cushion furnace[J].Light Alloy Fabrication Technology,2013,41(3):45-48.
[7]侯帅,李勇,王昭东,等.气垫炉圆形喷嘴漂浮力及传热研究[J].工业炉,2013,35(1):1-4.Hou Shuai,Li Yong,Wang Zhaodong,et al.Study on floating force and heat transfer of circular nozzle in air cushion furnace[J].Industrial Furnace,2013,35(1):1-4.
[8]王占军,张笑宇,李贤君,等.气垫式退火炉内流场的数值模拟[J].金属热处理,2017,42(1):171-174.Wang Zhanjun,Zhang Xiaoyu,Li Xianjun,et al.Numerical simulation of flow field in air cushion furnace[J].Heat Treatment of Metals,2017,42(1):171-174.
[9]黄超,李明杰,胡姣.气垫炉成套配套自动化控制系统的设计与实现[J].自动化技术与应用,2012,31(9):55-58.Huang Chao,Li Mingjie,Hu Jiao.Design and implementation of complete automation control system for air cushion furnace[J].Techniques of Automation and Applications,2012,31(9):55-58.
[10]翟祥民.气垫炉退火过程控制系统分析[C]//中国计量协会冶金分会2012年会暨能源计量与节能降耗经验交流会论文集.2012:139-141.Zhai Xiangming.Analysis of control system for annealing process for air cushion furnace[C]//Papers Collection of the 2012 Meeting of Metallurgical Branch of China Metrology Association and the Exchange of Experiences on Energy Measurement and Energy Conservation and Consumption Reduction.2012:139-141.
[11]路振龙,贵广臣,谢晓燕.气垫式连续退火炉设计计算[J].热加工工艺,2012,41(14):186-187.Lu Zhenlong,Gui Guangchen,Xie Xiaoyan.Design and calculation of air cushion furnace[J].Hot Working Technology,2012,41(14):186-187.