The application of CCD images and colorimetry temperature measure for combustion monitoring and control

摘要

In power stations, a CCD set is used to observe furnace flame images directly to distinguish the current combustion status of a boiler. Actually, more combustion information can be gained from flame images: the temperature distribution can be reconstructed inversely, and the furnace radiation can be described quantificationally. Colorimetry temperature measure and greyscale normalization is included in this technology. Moreover may important run-states such as flameout and flame center excursion can be caught by automation systems using the pattern recognition. Methods of combustion characteristic pattern recognition are discussed. And some applications for improving combustion control system are described.