Sealing assembly of nuclear power station hydrodynamic pressure type main pump mechanical seal

The invention belongs to the technical field of nuclear power maintenance, and particularly relates to a sealing assembly of a nuclear power station hydrodynamic pressure type main pump mechanical seal. According to the embodiment of the sealing assembly, the outer diameters of an O-shaped ring and a static ring guide sleeve can be better matched, so that the frictional resistance between the static ring guide sleeve and a static ring seat is greatly reduced compared with the prior art, the follow-up performance of the static ring is obviously improved, the O-shaped ring can still keep the original state after being used for a long time, the low-pressure leakage amount of the mechanical seal is effectively reduced, and the problem of high leakage amount is solved. The sealing structure ofthe nuclear power station hydrodynamic pressure type main pump mechanical equipment can solve the problem that a certain hydrodynamic pressure type main pump mechanical seal frequently breaks down, has very high practicabilit