The Applied Research Of Boiler Operation Fault Diagnosis System

Fault diagnosis of boiler operation is an important tache of the power plant. It is active development direction to apply object oriented method and the technology of artificial intelligence in boiler fault diagnosis. Based on the existing theory and technology of fault diagnosis, firstly systematic frame of boiler fault diagnosis was presented according to the boiler system's construction and function and fault traits, which were combined with boiler operation characteristic. Models based on structure and function are adopted to construct the knowledge database. Field deep knowledge and experience shallow knowledge etc. are joined to be used and factual knowledge is expressed with database at the same time. Fault diagnosis knowledge is expressed effectively with regular knowledge, model knowledge, frame knowledge and nerve network knowledge. Through analysis and studying the existing fault diagnosis theories, it has designed reasoning control mechanism with mixing of deep and shallow knowledge. At the same time,nerve network diagnosis technology will be embedded . Finally, fault diagnosis system of boiler operation was preliminary developed used object oriented programming language (VC 6.0 ) and database language Access.