| 罩式退火炉炉内气体流场的仿真研究 |
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| 引用本文： | 祁卫东,宋锦春.罩式退火炉炉内气体流场的仿真研究[J].冶金设备,2012(3):12-16. |
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| 作者姓名： | 祁卫东 宋锦春 |
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| 作者单位： | 1. 东北大学机械工程与自动化学院 辽宁沈阳110004;宝钢集团有限公司 上海201900
2. 东北大学机械工程与自动化学院 辽宁沈阳110004 |
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| 摘 要： | 由于外部气体渗入炉内易造成钢卷被氧化,为了寻求避免钢卷退火时发生表面氧化的方法,采用流体分析软件FLUENT对罩式退火炉炉内的流场进行分析,结果表明:分流板对气体的扰动作用是造成气体涡流场的直接原因;当钢卷外径过小时,分流板对气体的扰动作用较强,易于造成外部气体渗入;当钢卷外径大于分流板外径时,分流板对气体的扰动作用减弱;当钢卷外径大于2300mm时,钢卷周围不再出现涡流场;钢卷外径控制在2400±100mm范围内为最佳。
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| 关 键 词： | 罩式退火炉 流场 仿真研究 FLUENT软件 |
Simulation Study of Gas Flow Field in Bell -type Annealing Furnace |
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| Qi Weidong
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Song Jinchun.Simulation Study of Gas Flow Field in Bell -type Annealing Furnace[J].Metallurgical Equipment,2012(3):12-16. |
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| Authors: | Qi Weidong Song Jinchun |
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| Affiliation: | Qi Weidong SongJinchun (1 ：School of Mechanical Engineering and Automation,Northeastern University, Shenyang 110004; 2 ： Baosteel Group Co. , Ltd. , Shanghai 201900) |
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| Abstract: | The steel roll surface will be oxidated because external gas infiltrates furnace during annealing. To solve the problem, the gas flow field in bell - type annealing furnace is analysed by fluid analysis software FLU- ENT. The results show that ： the direct reason why gas eddy field forms is that the gas is disturbed by diftluent board ; the diffluent board is disturbed strong to make external gas infiltrate easily when the outer diameter of steel roll is too small ; the diffluent board is disturbed to be weaker when the outer diameter of steel roll is larger than its inner diameter; there is no eddy field around steel roll when the outer diameter is greater than 2300ram; it is optimum when the controlled outer diameter is between 2300mm and 2500mm. |
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| Keywords: | Bell - type annealing furnace Flow field Simulation study FLUENT software |
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