热处理加热炉温度检测控制分析
2015-07-21杨魏
杨魏


摘 要:热处理加热炉主要用于均匀钢材组织并控制其冷却过程,以保证材料有良好的力学性能,为钢材轧制做好生产准备。本文主要介绍用于钢管加热热处理加热炉在实际生产中的应用,通过对加热的热处理加热炉温度检测的检测设备和方法介绍,结合现场生产中加热过程几种问题类型,发现热处理过程中加热炉炉内热电偶检测、炉外红外线温度检测设备测量温度和工艺需要加热温度之间的关系,找出在实际生产过程中的容易产生的误区和提高钢管加热质量的方法。
关键字:加热炉;温度;检测;生产;加热质量;方法
中图分类号:TF33 文献标识码:A 文章编号:1672-3791(2015)06(a)-0000-00
Analysis of the detection and control of temperature for heat treatment furnace
Yang Wei
(Pangang Group ChengDu Steel&Vanadium Co.,LTD. ChengDu 610300,P.R.China)
Abstract:Heat treatment furnace is mainly used for controling cooling process of uniform steel organization , which can ensure the material has good mechanical properties to get production ready for steel rolling.This article mainly introduces the application of steel tubes for heat treatment furnace in practical production. Through the introduction of detection equipment and detection methods to heat treating furnace temperature, and several problems of heating process in production site, to find the relationships that detection of thermocouple inside the heating furnace, detection of infrared temperature outside the heating furnace and heating temperature needed by technology in the process of heat treatment. Finally, we find the errors which is prone to produce and the methods which can improve the heating quality of the steel pipes in the actual production process.
Keywords: heating furnace;temperature;detection;production;heating quality; method
随着我国国民经济的快速发展,热处理加热炉的运用越来越广泛,对温度的测量和控制水平都不断提高。对于热处理加热炉的金属加热质量,因为加热过程处于高温等恶劣环境,目前在加热过程中还没有用检测设备来直接测量的客观方法。国内外通用的判断热处理加热质量的方法是通过检测炉膛温度和出炉温度来反应加热质量的。温度的检测和控制都直接影响安全生产和产品质量。
1温度测量系统介绍
加热炉温度检测系统主要由PLC(可编程控制器)和传感器构成。温度检测系统实现的过程主要是传感器将温度转换为电信号,电信号通过PLC输入模块进入PLC,PLC的中央处理器(CPU)通过A/D转换将送进来的电信号转换为PLC可识别的数值,然后PLC通过系统设定温度(SP)和实际温度(PV)的差别通过PID运算进行自动控制,温度检测的数据可以通过历史曲线记录下来作为加热炉产品合格的依据。……
