【作者】 温良英； 郭锐； 陈登福； 李军成； 黄其明； 王勇；

【Author】 WEN Liang-Ying~1,GUO Rui~1,CHEN Deng-fu~1,LI Jun-cheng~1,HUANG Qi-ming~2,WANG Yong~2 (1.College of Material Science and Engineering,Chongqing University,Chongqing 400030,China; 2.Steelmaking Department of CISDI Engineering Co.,Ltd.,Chongqing 400013,China)

【机构】 重庆大学材料科学与工程学院； 中冶赛迪工程股份有限公司炼钢事业部；

【摘要】 分析了转炉炉壳喷气冷却结构布置特点,建立了描述转炉炉壳喷气冷却热交换的控制方程和边界条件,利用FLUENT软件进行流动-传热耦合数值模拟求解.结果表明,在各空气喷射冷却条件下,喷射冷却模块内气体流动状态和炉壳表面温度分布相似;随着喷射空气流量增加,喷流速度增大,对流换冷却使炉壳表面温度降低效果明显;当喷射空气流量增加到一定程度后再继续增加,喷射流冲击强烈的上部区域温度可以持续降低,但对表面下部温度的降低变得不明显;在适宜喷流供气参数条件下,炉壳表面上、下最大温差的最小值约为180℃.更多还原

【Abstract】 According to the arrangement characteristics of air-jet cooling structure of converter shell,the governing equations and boundary conditions describing air-jet cooling and heat exchange of converter shell were established and used to solve them by a method of conduction and convection heat transfer coupling numerical simulation with software FLUENT.The results indicated that the flow patterns in air-jet cooling module and the surface temperature distributions of converter shell were similar in the case of various jet parameters.With the air flux increasing,the issuing velocity of air increased,leading to a clear effect of the surface temperature decreasing of converter shell because of air-jet cooling.The temperature of upper air-impinging zone could continuously decrease,but that of lower part decrease to become unconspicuous by increasing air flux as it rose up to a certain extent.Under the optimum conditions of jet gas supply parameters,the minimum of the maximum differences in temperature on converter shell surface was about 180℃.更多还原