Full-sea deep self-balancing high-pressure sealing device

Abstract

The invention belongs to the technical field of deep sea sealing, and particularly relates to a full-sea-depth self-balancing type high-pressure sealing device. The full-sea-depth self-balancing type high-pressure sealing device comprises an upper adapter bowl, an elastic leather bag pipe and a lower adapter bowl. The extension-type covering skin in the elastic leather bag pipe is an elastic component with the cross section being of a corrugated structure, and the two ends of the extension-type covering skin and an upper end face flange and a lower end face flange are vulcanized into a whole. A spring skeleton is embedded into the inner surface of the extension-type covering skin to play a role in radial support, and the spring skeleton is in a natural extension state at the initial state. The elastic leather bag pipe is connected with the upper adapter bowl and the lower adapter bowl. After the upper adapter bowl, the elastic leather bag pipe and the lower adapter bowl are combined, a cavity capable of covering a kinematic pair is formed, transformer oil is injected into the cavity through an oil charge valve opening, and air inside the cavity is emitted through an exhaust valve opening. The full-sea-depth self-balancing type high-pressure sealing device can automatically balance external seawater pressure through the elastic transformation of the elastic leather bag pipe to meet the requirement of full-sea-depth high-pressure sealing.

Description

technical field [0001] The invention belongs to the technical field of deep-sea sealing, in particular to an all-sea deep high-pressure sealing device. Background technique [0002] The deep sea is rich in seabed resources, and submersibles are important marine engineering equipment to realize the development and utilization of the deep sea. In order to achieve accurate and stable seabed exploration and sampling operations, etc., submersibles are required to be equipped with mechanical legs or manipulators for close-range and accurate acquisition. Since the underwater crawling attitude adjustment of the submersible and the underwater operation of the manipulator need to be realized through the rotation / movement of the kinematic pair, ensuring the reliable sealing performance of the kinematic pair in the deep-sea high-pressure environment is the basis for the normal operation of the submersible. [0003] At present, the sealing of the kinematic pair is divided into static se...

AI Technical Summary

Problems solved by technology

The use of pressure-bearing dynamic seals will greatly increase the weight of the substrate, and there is no guarantee that there will be no leakage at all

The pressure-compensated dynamic seal achieves internal and external pressure equalization through pressure compensation. Although it can reduce the weight of the substrate, there must be a gap at the position where the dynamic seal is required to ensure relative movement, and the existence of the gap will definitely reduce the sealing performance. reliability

In addition, these two dynamic sealing methods are also difficult to solve the anti-corrosion and anti-fouling problems of the kinematic pair in the submersible, resulting in high maintenance costs for the kinematic pair, and there are problems caused by the "stuck" of the kinematic pair during the working process. Risk of mission failure in underwater operations

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