Rotary Part Of AS-B285 Customized Metal Bellow Mechanical Seal

Background Knowledge:

What is the force deformation and thermal deformation of the mechanical seal sealing ring

The deformation of the sealing ring of the mechanical seal has stress deformation, thermal deformation and residual deformation. The relatively rotating sealing surfaces of the mechanical seal will generate frictional heat. When the relative speed of the rotary face and the stationary seat is high, the frictional heat will be larger, and the generated frictional heat will first be transmitted to the sealing ring, causing the temperature of the sealing ring to rise.

After a certain period of time, the heat transferred to the sealing ring is equal to the heat dissipated by the sealing ring to the surrounding medium, and a stable heat transfer state is achieved. At this time, a stable temperature field is established in the sealing ring. It has a different temperature than the original, thus causing thermal deformation of the sealing ring. At the same time, the sealing ring is affected by the medium pressure, oil film pressure, spring force, centrifugal force and other mechanical forces, which will also cause the surface deformation of the rotary face and the stationary seat, which is the force deformation of the sealing ring.