Characteristics and diagnosing essentials of turbine motion and rubbing

The dynamic and static rubbing of the steam turbine is caused by the friction between the moving parts and the stationary parts during the operation of the unit. During the operation of the large steam turbine,there is often a fault caused by rubbing. With the continuous improvement of the efficiency of large-scale steam turbine units in China,the increase of static and dynamic friction of the steam turbine is mainly due to the smaller static and dynamic gap. Starting from the causes and characteristics of steam turbine vibration and rubbing,the main points of the solution are introduced.