During the operation of the turbine compressor, the sealing strips of the dynamic and static vortex discs are compressed by the axial back pressure to make the dynamic and static vortex discs in close contact, and achieve good sealing effect with the help of refrigerant oil or air, so that the internal leakage is almost non-existent: when the flat surface of the end of the sealing strip is worn, it can be automatically compensated along the axial direction, To ensure that the end face of the moving vortex disk and the bottom face of the static vortex disk are always close, and the longer the working time of the air compressor, the better the coordination of these close relative moving surfaces and the better the sealing effect.