ABNORMALITY DIAGNOSTIC METHOD OF ROTATING MACHINE

To provide an abnormality diagnostic technique which early detects abnormality of a rotating machine by using plant operation data so as to conduct causal diagnosis.SOLUTION: An abnormality diagnostic method of a rotating machine, which diagnoses abnormality of the rotating machine, includes: an ope...

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Bibliographic Details
Main Authors OKIDO SHINOBU, USHIO YUICHI
Format Patent
LanguageEnglish
Japanese
Published 24.12.2020
Subjects
MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES
MEASURING
PHYSICS
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Summary:To provide an abnormality diagnostic technique which early detects abnormality of a rotating machine by using plant operation data so as to conduct causal diagnosis.SOLUTION: An abnormality diagnostic method of a rotating machine, which diagnoses abnormality of the rotating machine, includes: an operation data acquisition step of acquiring operation data of the rotating machine; a change rate calculation step of calculating a change rate of the operation data; and an abnormality determination step of determining the abnormality when the change rate exceeds or underruns an abnormality determination value J.SELECTED DRAWING: Figure 1 【課題】 本発明の目的は、プラント運転データを用いて、回転機械の異常を早期に検知し、原因診断を行う異常診断手法を提供することにある。【解決手段】 上記課題を解決するために、回転機械の異常を診断する異常診断方法であって、前記回転機械の運転データを取得する運転データ取得ステップと、前記運転データの変化率を算出する変化率算出ステップと、前記変化率が異常判定値Ｊを上回ったとき、または、下回ったときに、異常と判定する異常判定ステップと、を有する回転機械の異常診断方法とした。【選択図】 図１
Bibliography:Application Number: JP20190112706