Development of the Change-Resisting Mechanical Seal in Changing Condition

Based on the experiment of the motion of mechanical seal face in changing work condition, the change of the phase-changing radius in mechanical seal in changing work condition is discussed. And the method to deal with the unstable mechanical seal caused by the change of the radius is shown. Based on the mechanical seal theory on vapor-liquid two phases in changing condition, the change-resisting mechanical seal is developed, which is applied to industry successfully.