Seeking advice on hydraulic turbine shaft vibration issues
Thread Content
Our plant is an 800,000-ton diesel refining unit, with a high-temperature and high-pressure rating of 8.5 MPa； Low temperature rating: 1.4MPA. A portion of the oil from the heat exchanger is sent to the hydraulic turbine; when this turbine is in operation, the shaft vibration level is very high. The allowable shaft vibration level for this equipment is 85 ； But the actual value is 95 ； I would appreciate your guidance: what are the hazards of high shaft vibration for the equipment? ?
What causes shaft vibration, and how can it be eliminated?
There are many reasons for excessive shaft vibration; factors such as the dynamic balance of the impeller, the level of assembly precision, and the quality of bearing lubrication need to be checked one by one. Excessive vibration can easily damage the equipment, especially the rotating parts.
It is possible that the bearing clearance is too large. I need data to help you analyze it.