Monitoring methods of radiative energy signal in a coal-fired boiler

被引：0
作者：
Liu Z. [1 ]
Zheng S. [2 ]
Luo Z. [1 ]
Zhou H. [2 ]
机构：
[1] State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan
[2] Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Thermal Engineering, Tsinghua University, Beijing
来源：
Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) | 2016年 / 44卷 / 08期
关键词：
Coal-fired boiler; Flame detecting system; Image processing techniques; Optimal control; Radiative energy signal;
D O I：
10.13245/j.hust.160801
中图分类号：
学科分类号：
摘要：
A systematic method to construct the RES (radiative energy signal) was proposed based on flame monitoring system and image processing techniques. The value of RES was directly calculated from the image gray scale and then dynamically modified by the load. In this method, the RES has high accuracy and it can calibrate the signal of monitoring system covered by slag and/or soot deposit. Its value and power units have the same scale range, and decrease the difference between the RES and the measured power output is the foundation of combustion adjusting. A verification experiment was carried out in subcritical coal-fired boiler. The results show that RES constructed by this method is more rapid and accurate than the heat value signal. On this basis, the application potential of RES to improve the boiler-turbine control systems was also discussed. © 2016, Editorial Board of Journal of Huazhong University of Science and Technology. All right reserved.
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页码：1 / 5
页数：4
相关论文
共 5 条
  • [1] Lu G., Yan Y., Colechin M., A digital imaging based multifunctional flame monitoring system, Instrumentation and Measurement, IEEE Transactions on, 53, 4, pp. 1152-1158, (2004)
  • [2] Zhou H., Tang Q., Yang L., Et al., Support vector machine based online coal identification through advanced flame monitoring, Fuel, 117, pp. 944-951, (2014)
  • [3] Luo Z., Zhou H.C., Wu L., Et al., RES introduced through flame image processing and visualization of 3-D temperature distribution in a coal-fired boiler furnace, Proc of ASME 2005 Power Conference, pp. 795-800, (2005)
  • [4] Huang B., Luo Z., Zhou H., Optimization of combustion based on introducing radiant energy signal in pulverized coal-fired boiler, Fuel Processing Technology, 91, 6, pp. 660-668, (2010)
  • [5] Luo Z., Wang F., Zhou H., Et al., Principles of optimization of combustion by radiant energy signal and its application in a 660 MWe down-and coal-fired boiler, Korean Journal of Chemical Engineering, 28, 12, pp. 2336-2343, (2011)
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