Analysis of Sealing Characteristics of Lip Seal Rings for Deep-Sea Separable Pressure Vessels

Deep-sea pressure vessels are specialized designed for automatic deployment from underwater to the surface. These find extensive applications in life-saving and transportation. Their interiors furnished with a pair of sealing rings, one which is lip-shaped, other convex shape, ensure dependable seal. With increasing water depth, rings experience augmented pressure, resulting gradual pressing into groove. Using ANSYS workbench finite element software, two-dimensional axisymmetric lip seal model using forces overall constraint was established, complete process progressive groove simulated, deformation, contact stress, maximum shear von Mises stress distribution also simulated. We conducted comparative analysis seals under low high-water conditions. The findings study indicate that when subjected combined effect installation pre-tightening force working experiences compression at specific depth. When simultaneous influence on ring material friction surface, two extremes manifest primary zone have capacity elevate effective width, ultimately leading an improvement performance. Concurrently, as gradually increases, inner concave circle stretching, reduction concentration, equivalent considerable extent. This mechanism ensures lip-shaped retains sufficient strength. offers viable solution conducting studies deep-sea separable vessels.