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《AUTOMATION OF ELECTRIC POWER SYSTEMS》 1996-10
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STUDY ON APPLICATION OF MONOCHROMATIC FLAME IMAGE PROCESSING TECHNIQUE IN COMBUSTION MONITORING AND CONTROL OF BOILERS

Zhou Huaichun, Lou Xinsheng, Yin Heling (Huazhong University of Science & Technology, 430074, Wuhan, China ) Deng Yuankai, Gu Yizhi, Sun Guojun (Gansu Electric Power Testing and Research Institute, 730050, Lanzhou, China)  
The advantage of monochromatic flame image processing is discussed first, then the experiments on the application of this technique in the measurement of two dimensional temperature distribution of a 200 MW utility boiler are described. The main results are (1) even if the combustion state in the furnace is very steady, the fluctuation of the combustion temperature reached up to 1800 K, (2) the combustion temperature varied with the fuel adjustment process, and (3) the temperatures on the surface of the superheaters and of the flue gases are associated closely with the combustion temperature. A measurement method of three dimensional temperature distribution in utility furnaces based on this technique and a new two loop fuel control strategy, which takes the average grey scale of the flame radiative images as an intermediate controlled parameter, are described briefly, and the application potential of these new methods are discussed.
【Fund】: 国家自然科学基金资助项目
【CateGory Index】: TP391.41
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