摘要
针对径向加热退火炉内传热效率低的问题,分析了炉内铝卷的传热过程,提出了侧喷加热的改进方法。利用ANSYS软件,对径向加热和侧喷加热退火炉内铝卷的温度场进行对比仿真。仿真结果表明,与传统的径向加热退火炉相比,在同样边界条件下,侧喷加热方式下铝卷的温度场分布更均匀,退火结束时,卷内温差只有0.6℃,有利于提高铝卷的退火质量;在同一时刻铝卷芯部的温度要比传统径向加热时高30℃左右,且整个铝卷的退火周期缩短了4h,从而提高了铝卷退火效率。
Based on the analysis of the heat transfer in the aluminum coil, the side-blown annealing furnace is brought up to resolve the drawback of the inefficiency of the aluminum furnace which used radial convection heat transfer. Applying the ANSYS software, the numerical simulation of the transient temperature field of the aluminum coil is performed in the radial convection and side-blown aluminum annealing furnace separately. The results show that： comparing to the traditional radial convection aluminum annealing furnace, at the same botmdaries, the temperature field of the aluminum coil in the side-blown aluminum annealing furnace is better, and at the end of the annealing process, the temperature difference is only 0.6℃ ;within the same time, the temperature of the aluminum coil＇s core is 30℃ higher than the traditional furnace, and the whole annealing process is decreased by 4 h, the annealing efficiency is improved.
出处
《轻合金加工技术》
CAS
北大核心
2009年第5期19-23,共5页
Light Alloy Fabrication Technology
基金
国家“十一五”计划资助项目
国家“九七三”计划资助项目(2007CB613706)
国家教育部留学回国人员基金资助项目(76084)
关键词
铝材退火炉
侧喷
对流系数
温度场
aluminum coil annealing furnace
side-blown
convection heat transfer
temperature field
