Analysis and Handling of Abnormal Vibration at the Coupling End of the Compressor after Maintenance
During startup of the Hydrogen cycle hydrogen compressor unit after maintenance,the vibration values of two measuring points of the radial bearing at the coupling end of the compressor were abnormal,and the non coupling end of the compressor and other operating parameters of the turbine were within the normal range.After analysis and diagnosis,it was determined that the imbalance at the coupling caused an abnormal increase in the vibration of the compressor coupling.After the shutdown,it was found that two bolts were not installed as required when the coupling bolts were installed back,causing the unit’s shafting to be unbalanced.After the coupling bolts were reinstalled as required,all parameters were normal when the machine was started again.
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万方数据
