基于能质平衡原理的加热炉控制系统  

Control System of Heating Furnace Based on Energy-Mass Balance Principle

作　　者：隋春杰 蒋胜文 张俊卿 姜婕妤 张江辉[1] SUI Chunjie;JIANG Shengwen;ZHANG Junqing;JIANG Jieyu;ZHANG Jianghui(School of Mechanical and Electrical Engineering,Qingdao University of Science and Technology,Qingdao 266061,China)

机构地区：[1]青岛科技大学机电工程学院,山东青岛266061

出　　处：《工业炉》2020年第3期7-12,共6页Industrial Furnace

基　　金：国家重点研发项目子课题(2017YFB0602901-4)。

摘　　要：加热炉是油田联合站主要耗能设备之一,传统的加热炉控制系统存在着出油温度波动大、能耗大、时间延迟度高等问题。本研究提出基于能质平衡原理的高精度低延迟(HPLD)加热炉控制系统,实现加热炉的自动化控制调节。控制系统由燃气流量控制和给风量控制两大模块构成。燃气流量控制模块首先对扰动工况进行预估判断,进而确定理论水套温度及燃气调节方式。给风量控制模块利用烟气含氧量获得实际过量空气系数作为负反馈回路的输入,维持过量空气系数恒定,降低加热炉能耗及污染排放。经模拟验证,该控制系统相比传统控制系统具备更优操作性能。Heating furnace is one of the important energy consuming equipment in the oil-filed united station.The traditional heating furnace control system is suffered large output temperature fluctuation,high energy consumption and high system delay.In this research,a high-precision and low delay(HPLD)control system based on energy-mass balance principle is proposed to realize automatic control and adjustment of the heating furnace.The system is composed of two modules:the gas flow and the air supply control.The gas flow control module estimates and judges the current disturbance conditions firstly,and then determines the theoretical water jacket temperature and gas regulation mode.The air supply control module uses the oxygen content of the flue gas to obtain the actual excess air coefficient as the input of the negative feedback loop,maintaining the constant excess air coefficient and reducing the energy consumption and pollution emissions of the heating furnace.It is further shown by numerical simulation that the HPLD control system has better performance than the traditional control system.

关 键 词：加热炉 过程控制 能质平衡原理 

分 类 号：TE08[石油与天然气工程]