Thermal-mechanical Coupling Analysis of Split Mechanical Seals

Abstract

In order to study the effects of frictional heat and medium pressure on the deformation of split mechanical seals, thermal-mechanical coupling numerical analysis of split mechanical seals was carried out. The results show that: in the temperature field, the temperature on the outer diameter side of the seal ring is lower, the highest temperature of the end face of the split dynamic ring appears at the seal end face that is in contact with the split static ring, and the highest temperature of the end face of the split static ring appears at the inner diameter of the seal end face ;Under the action of heat and force coupling, the sealing end face forms a convergent gap from the deformation of the outer diameter to the inner diameter; as the medium pressure increases, the axial deformation of the sealing ring increases, and the radial deformation of the sealing ring parting surface decreases; The change of medium pressure leads to the difference of frictional heat generated between the end faces of the sealing ring, which causes the difference of the deformation of the sealing ring.