Abnormality monitoring device and the abnormality monitoring method of circulating fluidized bed boiler

摘要

PROBLEM TO BE SOLVED: To provide an abnormality monitoring device of a circulating fluidized bed boiler capable of more surely specifying the cause of an abnormality.;SOLUTION: An abnormality monitoring device 1 of a circulating fluidized bed boiler 2 includes an operation data acquisition unit 21 for acquiring operation data consisting of sensor data x₁-x_k of the circulating fluidized bed boiler 2, an abnormality determination unit 34 for determining the presence or absence of an operation abnormality of the circulating fluidized bed boiler 2 based on a Mahalanobis distance D² of the operation data, an imaging data acquisition unit 22 for acquiring imaging data of prescribed imaging regions 16a-16e of the circulating fluidized bed boiler 2, and an operation data synchronizing and recording unit 36 for synchronizing the sensor data x₁-x_k and the imaging data of the imaging regions associated with the sensor data x₁-x_k to be stored when the presence of the operation abnormality is determined in the abnormality determination unit 34.;COPYRIGHT: (C)2014,JPO&INPIT