蓄热式加热炉控制技术综述  

On Control Technologies of Regenerative Reheating Furnace

作　　者：周开峰[1] 吕立华[2] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海201900 [2]宝钢技术中心自动化所,上海201900

出　　处：《控制工程》2009年第S1期1-5,共5页Control Engineering of China

摘　　要：对蓄热式加热炉的诸多优势以及国内连续加热炉的蓄热式技术改造和十年应用情况做了简要介绍,将蓄热式加热炉的核心技术分成蓄热箱技术,自动燃烧控制技术,钢温预报和炉温优化技术四大部分,分别进行了介绍。为了研究解决蓄热箱废气温度过高的问题,通过微元法、能量平衡法以及传热学经典公式等手段对蓄热箱建模。模型对蓄热箱做了一些合理简化,并且用Matlab仿真来研究蓄热箱的各过程量的变化规律,得到了气体流量、换向时间、换向占空比的确定方法。仿真结果表明模型能使废气温度保持在设定值。Advantages of regenerative reheating furnace and domestic technical transformation of continuous reheating furnace together with ten years' applications are introduced.Four parts core technology of regenerative reheating furnace including thermal storage tank technology,automatic combustion control technology,slab temperature prediction model technology and temperature optimization model technology are described respectively.To solve the over-temperature of waste gas flowing out of thermal storage tank,differential element method,energy balance law and classical laws in heat transfer theory are used to build a model for thermal storage tank.Thermal storage tank is simplified for building its model and simplifications are reasonable at present.Through using Matlab for simulating,gas flow,switch cycle time and its duty ratio are calculated.The simulation results show that model can keep temperature of waste gas at its set-point.

关 键 词：蓄热式加热炉 数学模型 温度控制策略 

分 类 号：TG307[金属学及工艺—金属压力加工]