Vibration fluctuations of ammonia compressors
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Gentlemen! In our plant, Hangqi turbines drive Shengyu centrifugal compressors; the vibration of these turbines fluctuates from time to time, with peaks of around 7 microns. What could be the reasons for this?
All other parameters are stable; only the vibration shows fluctuations, usually once a day, but without a regular pattern
Do those vibration detection parameters fluctuate at the same time?
Check whether there is liquid present, and whether there is self-excitation in the oil film.
The vibration curve is not visible; I think it’s better to look into oil film oscillations or check for any foreign objects