BOILER TUBE LEAK DETECTION DEVICE, BOILER TUBE LEAK DETECTION METHOD, DATA MONITORING CENTER USING THE DEVICE AND METHOD, INFORMATION PROVIDING SERVICE AND BOILER PLANT

摘要

PROBLEM TO BE SOLVED: To provide a boiler tube leak detection device which can early detect a boiler tube leak, and can early specify a leak position.;SOLUTION: A boiler tube leak detection device comprises: a measurement signal database which stores a measurement signal obtained by measuring a state amount of a boiler plant; a state change detection unit which detects a change in operation state of the boiler plant; and a detection content evaluation unit which evaluates whether or not the change detected by the state change detection unit is a leak. The state change detection unit includes: a monitoring data extraction unit which groups a first measurement signal data item of the measurement signal database as a monitoring group including metal temperatures of a plurality of heat exchangers in the boiler plant; an operation pattern evaluation unit which identifies an operation pattern of the boiler plant; a sorting unit which sorts first measurement signal data belonging to the grouped data item for each identified operation pattern and for each monitoring group to construct a diagnosis model; and a detection unit which detects that the operation state is changed, by comparing the diagnosis model with a second measurement signal.;COPYRIGHT: (C)2015,JPO&INPIT