Research on a sealing solution using O-rings in the design and manufacture of underwater observation devices

Abstract

This paper presents a comprehensive study on the design of pressure-resistant seals for underwater observation devices operating in seawater environments. The unique challenges posed by seawater, including its high salinity and corrosive elements, necessitate innovative material selection and precise engineering techniques to ensure the durability and efficiency of the seals. This research focuses on identifying corrosion-resistant elastomers and coatings suitable for withstanding high pressures and temperature fluctuations in the harsh marine environment. Additionally, the study delves into the impact of meticulous assembly practices on the long-term performance and reliability of the sealing components. The research team calculated and designed a prototype of the underwater observation device's shell and successfully conducted a water pressure test at a depth of up to 80 meters. The sealing limit primarily depends on the mechanical properties of the gasket material. When using metal gaskets, the sealing limit can reach up to 5000 psi, equivalent to a depth of 3400 meters, which is also the current testing equipment limit.