Analysis of Shaft Breakage Fault and Solutions for Liquid Ring Vacuum Compressor
A series of analyses were conducted on the shaft breakage fault of a liquid ring vacuum compressor in the atmospheric and vacuum distillation unit of a refinery enterprise.These analyses encompassed macroscopic observation of the fractured shaft,chemical composition analysis,mechanical property testing,metallographic examination,and scanning electron microscope(SEM)scanning.The analysis results revealed that the primary cause of shaft breakage was stress concentration at the root of the keyway,combined with the compressor's continuous operation under high load conditions,leading to fatigue fracture of the shaft.Furthermore,the wet hydrogen sulfide working environment exacerbated the corrosion and fracture process of the shaft.Based on these findings,targeted improvement measures were proposed to ensure the long-term,safe,and stable operation of the compressor.
liquid ring vacuum compressorshaft breakagecorrosion-induced cracking
万方数据
维普
