摘要
钢锭内部温度分布是钢铁热处理过程中最重要的参数之一,但是常规的测量方法和手段不能保证高温环境下、长期测量的精度。针对某钢厂出现的钢锭过加热问题,采用流体力学计算方法建立钢锭的三维非稳态导热模型,并针对该钢厂此钢锭的少量现场测量数据确定模型参数,分析钢锭内部温度分布,修正和调节目前钢厂运行的一维钢锭温度预测模型,确保在线控制模型的预报精度。
Temperature field inside steel ingots is one of the most important parameters during heat-treating proces-ses.The conventional methods cannot make sure the accuracy of the temperature measurement in a long run due to the high temperature.Aiming to solve the problem of overheated steel ingots occurs in a certain steel plant,a three-dimensional heat transfer model for steel ingots was established in unsteady state by method of computational fluid dynamics.The parameters in the CFD model were determined with the operation conditions and some data in a cer-tain steel plant.With the model,temperature distribution inside the steel ingot was analyzed.The results provide a guidance for determination and rectification of the one-dimensional temperature predictive model that is in operation to satisfy the requirement of on-line control and higher accuracy.
出处
《中国冶金》
CAS
2015年第7期28-32,共5页
China Metallurgy
基金
上海市自然科学基金资助项目(13ZR1418900)
国家自然科学基金资助项目(61203110)
高等学校博士学科点专项科研基金资助项目(20123121110003)
上海市教育委员会科研创新项目资助项目(14YZ105)
关键词
钢锭
温度预测模型
计算流体力学方法(CFD)
温度分布
steel ingot
temperature predictive model
computational fluid dynamics （CFD）
temperature distribution
