Use of Expert Systems for Recovery Boiler Tube Leak Detection, 1992 Process Control, Electrical & Info. Conference Proceedings
This paper describes an expert system for detecting major tube ruptures in Kraft black liquor recovery boilers. Distinguishing between the catastrophic boiler tube rupture and less critical, but often misleading, process upsets is a major focus of the computer software. The expandable expert system is used to augment the capabilities of the control system software by helping the boiler operator interpret process data and control system actions. Access to on-line, real-time process data from a Distributed Control System, the availability of historical process data, data conditioning, and numerical modeling all contribute to the successful identification of major tube ruptures.