Shaft vibration monitoring system and rotary machine
AssigneeMitsubishi Heavy Industries, Ltd.
InventorSatoshi SABURI
Life of this patent
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Abstract
A shaft vibration monitoring system is equipped with a plurality of sensors, a sensor abnormality determination unit, and a shaft vibration monitoring unit. The plurality of sensors detect vibration of the rotary shaft. The sensor abnormality determination unit is configured to compare the detection signals to be output from the plurality of sensors and determine whether an abnormality occurs in at least one of the plurality of sensors. The shaft vibration monitoring unit is configured to monitor the vibration of the rotary shaft, on the basis of the detection signals to be output from the plurality of sensors and the determination result of the sensor abnormality determination unit.
Claims15
A shaft vibration monitoring system of a rotary machine equipped with a rotary shaft and a bearing rotatably supporting the rotary shaft around an axis of the rotary shaft, the shaft vibration monitoring system comprising:
- a plurality of sensors which are configured to detect vibration of the rotary shaft;
- a sensor abnormality determination unit which is configured to compare detection signals output from the plurality of sensors and determine whether an abnormality occurs in at least one of the plurality of sensors;
- and
- a shaft vibration monitoring unit which is configured to monitor vibration of the rotary shaft on the basis of detection signals output from the plurality of sensors and a determination result of the sensor abnormality determination unit.
A shaft vibration monitoring system of a rotary machine equipped with a rotary shaft and a bearing rotatably supporting the rotary shaft around an axis of the rotary shaft, the shaft vibration monitoring system comprising:
- a sensor unit having a sensor which are configured to detects vibration of the rotary shaft on each of a first side and a second side of the bearing in a direction of the axis;
- and
- a shaft vibration abnormality determination unit which is configured to determine whether an abnormal vibration occurs in the rotary shaft on the basis of a detection signal output from the sensor unit.
Dependencies are inferred from the claim text.