Large Vibrations on a Centrifugal Compressor Caused by High Windage Heating on a Flexible Coupling - Root Cause Analysis and Solutions - (PPT)

摘要

To eliminate both negative factors (heat + resonance) the original flexible disk coupling was replaced by a diaphragm type coupling which reduced the heat production and shifted the overhung resonance. Furthermore the installation of a ventilator allows a positive flow through the breather. Thus the vibrations could be considerably reduced. No balancing was necessary on site.