Dynamic-static pressure combined type asymmetrical waviness end face fluid mechanical sealing structure
A technology of fluid machinery and sealing structure, applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve the problems of increasing the risk of failure, weakening the hydrostatic pressure capacity, reducing the bearing capacity and stability of the sealing system, and achieving improvement Work efficiency, improve hydrodynamic pressure effect, prevent accumulation effect
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[0026] The present invention will be described in detail below in conjunction with accompanying drawings and examples.
[0027] refer to figure 1 (a), figure 1 (b), figure 2 (a), figure 2 (b) and figure 2 (c), a combination of dynamic and static pressure type asymmetric waviness end face liquid mechanical seal structure, including the main shaft 7, the moving ring 15 and the static ring 17 of the mechanical seal, the end faces of the moving ring 15 and the static ring 17 are the high pressure side, That is, the upstream, and the other side is the low-pressure side, that is, the downstream. At least one sealing end surface of the moving ring 15 and the static ring 17 has more than two three-dimensional asymmetric waviness shapes, and the asymmetric waviness is periodic on the sealing end surface. Arrangement, the asymmetric waviness sealing end face includes dam area 1, cone surface 4, wave crest 2, wave trough 3 and the formed wave peak height 5 and wave trough depth 6,...
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