MONITORING OF AXIAL VIBRATION FOR DETECTION OF SHAFT DISPLACEMENT IN TURBOMACHINE UNITS Russian patent published in 2015 - IPC G01B7/31 

FIELD: measurement equipment.

SUBSTANCE: invention relates to measurement and axial vibration control equipment. The system to determine misalignment of shafts in a turbomachine unit (10), comprising multiple components (12, 14, 16) with serially connected rotating shafts (24, 26, 28), comprises a sensor (30A, 30B and 30C), attached to a component (12, 14, 16) of the turbomachine unit (10) near the rotary shaft (24, 26, 28), where this sensor (30A, 30B and 30C) collects data (50) on vibration along the axis of the rotary shaft (24, 26, 28). Also there is a frequency analyser (52) for generation of data in the frequency area from data on vibration, and the system (54) of analysis for analysis of the frequency component (12, 14, 16) of data in the frequency area at single frequency of rotation of a rotary shaft (24, 26, 28) to identify misalignment between the rotary shaft (24, 26, 28) and connected adjacent rotary shaft (24, 26, 28).

EFFECT: possibility to control misalignment of rotary shafts.

10 cl, 3 dwg