摘要
以炉膛能量平衡方程和工件、炉围和台车的热传导方程为基础 ,建立了热处理炉数学模型 ,实现了热处理全过程 ,即空炉、加热、保温和冷却四个阶段的数学描述。模型的炉膛辐射热交换部分采用了全交换面积的概念 ,有效减少了重复计算。以炉子模型作为软件平台 ,研究了热处理炉的直接数字控制 ( DDC)系统 ,整定了各阶段的 PID参数 。
Based on the heat balance in furnace and heat-transfer between work piece and wall, the mathematical model of heat treatment has been built,for heating, holding and cooling. The repetition calculation was avoided by using the total exchange area to describe the radiant heat transfer in the furnace. Based on the model, the DDC system of the furnace was studied and PID parameters were debugged respectively, and then the off-line simulation of heat treatment process and its control system has been realized.
出处
《钢铁》
CAS
CSCD
北大核心
2003年第4期64-67,78,共5页
Iron and Steel
基金
国家自然科学基金资助项目 ( 5 99740 0 5 )
