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采用热流计和红外测温仪分别测定炉壁热流和温度分布,计算出电弧炉炉壁热点区热流,并且建立管式水冷炉壁的传热模型。采用最优化设计方法,综合考虑影响它的全部技术经济特性因素,建立传热模型的物理方程。确定以水冷炉壁年运行费用为目标函数,根据物理过程和技术条件确定约束条件,采用有约束的非线性规划的SUMT法求解,通过计算机计算得到水冷护壁最佳设计参数。
The heat flow and temperature distribution in the furnace wall were measured by using heat flow meter and infrared thermometer respectively. The heat flow in the hot zone of the furnace wall was calculated and the heat transfer model was established. Using the optimal design method, considering all the technical and economic characteristics affecting it, the physical equations of the heat transfer model are established. It is determined that the annual running cost of water-cooled furnace wall is the objective function, the constraints are determined according to the physical process and technical conditions, the SUMT method is adopted to solve the nonlinear programming with constraints, and the optimal design parameters of the water-cooled protective wall are calculated by computer.