Pressure balance retainer for underwater oil charge system

Abstract

The invention relates to a pressure balance retainer for an underwater oil charge system, comprising a seawater pressure sensing transfer unit and an oil pressure rapid automatic compensation unit, wherein the seawater pressure sensing transfer unit comprises an upper shell, a lower shell, a spring, a rolling membrane, a piston, a piston rod and an oil pressure control rod which are coaxially arranged; the upper shell is fixedly connected with the lower shell, the lower shell is provided with through holes, the rolling membrane is arranged between the upper shell and the lower shell through the spring and a fixed plate, the piston is arranged above the rolling membrane, and the piston rod is lockedly connected with the oil pressure control rod; the top end of the lower shell is hermetically fixed on the oil pressure rapid automatic compensation unit; and the oil pressure rapid automatic compensation unit comprises an oil charge valve for realizing the open and close of an oil charge oil circuit by the movement of the oil pressure control rod. According to the invention, the pressure balance retainer disclosed herein can automatically compensate the oil charge system, and can guarantee the reliability of devices by the multi-layer watertight structure.

Description

technical field [0001] The invention relates to the technical field of underwater sonar electronic equipment, in particular to a pressure equalization retainer for underwater oil-filled systems, especially suitable for large-depth underwater sonar electronic equipment oil-filled systems, to achieve pressure maintenance with seawater balanced. Background technique [0002] The large-depth underwater sonar electronic equipment is loaded on the underwater towing platform, and the underwater equipment is towed by the towing mother ship through the oil-filled towing cable. In order to improve the pressure resistance of sonar equipment, the sonar matrix in the underwater towed platform is filled with oil, and the towed cables and interconnection cables are filled with oil, so that the entire underwater sonar electronic system can be kept in balance with seawater pressure. This pressure equalization device is called a pressure balance retainer. The function of the pressure balance...

AI Technical Summary

Problems solved by technology

[0004] However, there are some problems with this pressure retainer. For example, some pressure compensators are designed for pressure compensation of underwater hydraulic actuators, and high-precision pressure compensation must be ensured. The pressure sensing and compensation devices are too complicated; When the pressure retainer of the submersible is short of oil due to leakage, it cannot replenish oil during work, so it needs to float to the water surface for oil replenishment

For large-depth underwater towing equipment, it takes a long time for the towed platform to float from underwater to the sea surface, and the seawater in the environment will enter the underwater sonar electronic equipment. Aging occurs and leakage occurs. Once leakage occurs, seawater invades the oil-filled system, which will cause damage to underwater sonar electronic equipment

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