80. What are the causes of vibration in the turbine unit?

2021-11-28View Original

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80. What are the causes of vibration in the turbine unit?

Reply #22021-11-28

The main issues include: 1) The unit operating at its critical speed. 2) Vibration in the inlet and outlet pipelines. 3) The lubricating oil temperature being too high or too low. 4) Shaft bending, or a loose connection between the impeller and the main shaft, as well as misalignment of the coupling or excessive clearance in the bearing shells. 5) Loss of dynamic balance of the unit’s rotor.

Reply #32021-11-29

There are many reasons that can cause vibration in the unit, mainly including: 1) The unit is operating at its critical speed. 2) Vibration in the inlet and outlet pipelines. 3) The lubricating oil temperature being too high or too low. 4) The shaft being bent, or the connection between the impeller and the main shaft being loose, as well as misalignment of the coupling or excessive clearance in the bearing shells. 5) Loss of dynamic balance of the unit’s rotor.

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