The Study And Exploiture Of Digital Viedo Detection System Of Boiler

At present, industry television system is widely used in monitoring hearth flame and drum double color water level meter of boiler. Image information is mostly obtained by man's eyes, which is qualitatively observed. Along with the development of computer management capacity and video technique, multimedia computer is used for quantitative observation. The paper presents a set of boiler digital video detection system based on PC. On the one hand, the paper introduces the theory of video detection and the applications of combustion diagnosis based on flame image. According to the analysis and comparison of several methods, advantages and disadvantages are presented. Particularly, aiming at the problem of flame monitoring, the paper introduces combustion diagnosis based on flame temperature distribution and temperature calculating based on calibrating experiment. This system can calculate radiant energy by using temperature distribution, which can optimize combustion control. On the other hand, according to the actual situation of local water level meter, a method of pressure and temperature compensation has been given in this paper. Moreover, the edge-detecting method of image processing is used in detecting water level of boiler drums. The result shows this method is practicality for power plant. In addition, the paper presents hardware integral and software development of boiler video detection system. Finally, the paper brings up some proposal about the later work.