Centrifugal pump spectrum anomaly analysis
Thread Content
This pump is a high-temperature oil pump that was recently overhauled. The vibration at the non-drive end is indirectly larger by about 4mm/s. Checking the frequency spectrum, the vibration is concentrated at 375 Hz. During normal operation, the vibration is 2mm/s. The peaks appear at the double peaks of 500 Hz and 625 Hz. It is really difficult to judge high multipliers. Please give me some guidance.
\ud83d\ude0a\ud83d\ude0a
What is the speed of the pump? What is the problem with high-speed general bearings?
Yes, but I can’t find strong theoretical support, so I don’t dare to change it rashly. After all, I just changed it.