What are the reasons for high vibration in synthetic compressors?

1. Changes in unit load； 2. The change in rotational speed is close to the critical speed ； 3. Poor bearing performance, oil film oscillation, etc ； 4. Poor shaft alignment ； 5. Excessive shaft displacement or damaged thrust bearings cause the rotor to come into contact with the stator. 6. The rotor is unbalanced, leading to blade breakage during operation. There are many other factors as well; let’s continue the discussion. In any case, the causes of vibration are complex and need to be considered comprehensively.

1. Large shaft vibration during startup is likely due to the failure to turn the shaft after shutdown, or because the rotor is in a state of thermal bending. 2. An increase in vibration during acceleration may be due to too short a warm-up time or uneven heating of the cylinders. 3. The low-speed warm-up time is too long, resulting in excessively high exhaust temperature. 4. Poor alignment between the prime mover and the driven machine, or damaged coupling. 5. Rotor deformation, loss of dynamic balance, or loosening and detachment of rotor components. 6. Rotor scaling or foreign objects entering the cylinder. 7. The main steam temperature is too low, resulting in water hammer. 8. The oil temperature is too high or too low. 9. The bearing oil pressure is low and the oil volume is insufficient. 10. Bearing wear, excessive clearance in the bearing shells. 11. Deterioration of oil quality, oil emulsification. 12. Driving through a critical zone or operating in the vicinity of a critical zone. 13. Cracking and deformation of the unit foundation or loosening of the anchor bolts. 14. Compressor surge. 15. The compressor medium is contaminated with liquid.

The last edit to this post was made by 654262293 on 2010-11-3 at 08:29. Sometimes, during rotation, the vibration increases suddenly, but it returns to normal in a very short time, with no change in the load