A buoyancy adjustment system and adjustment method for medium and shallow depth submersibles

Abstract

A buoyancy adjustment system and adjustment method for medium and shallow depth submersibles, including a water tank assembly, a drainage branch and an emergency drainage branch. There is a sea port at the bottom; the structure of the drainage branch is as follows: it includes a gas cylinder group, and its output end is connected in series with a manual switch valve, a throttle valve, a first air intake valve, a check valve, and a first seawater filter through the pipeline. , the first fixed orifice; the structure of the emergency drainage branch is as follows: it includes an emergency gas cylinder, and its output end is connected in series with an emergency switch valve, a second air intake valve, a third seawater filter, and a third fixed section through the pipeline. orifice; the top surface of the water tank is also connected in series with an air release valve, a second fixed orifice and a second seawater filter. The submersible function can also realize fine-tuning of the buoyancy of the submersible, and has low cost and high reliability.

Description

technical field [0001] The invention relates to the technical field of auxiliary equipment for submersibles, in particular to a buoyancy adjustment system and adjustment method for medium and shallow depth submersibles. Background technique [0002] In order to save energy, the manned submersible generally adopts the method of diving and surfacing without power. During the diving process, the weight of the submersible is greater than the underwater buoyancy, and the submersible relies on the negative buoyancy underwater to dive; when the submersible dives to a predetermined working depth, a set of ballast is discarded through the ballast jettisoning device. When the underwater weight and buoyancy of the submersible are basically balanced, the submersible can carry out underwater work; The buoyancy force is greater than gravity, and the submersible floats to the surface by relying on positive buoyancy underwater. [0003] After the submersible is sampled, due to the increas...

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Problems solved by technology

[0004] For submersibles in the prior art, a set of special devices is required for floating and diving, such as the "Deep Sea Suspension and Dumping Device for Heavy Objects", "Deep Sea Submersible Ballast Dumping Device", "Ballast Weight Block" that have been disclosed at present. Suspension, release mechanism" and so on; its buoyancy fine-tuning also requires a set of special devices, such as the current public "submersible buoyancy adjustment device and its control system", "a buoyancy adjustment system based on a two-way seawater pump", etc., Moreover, the current buoyancy fine-tuning methods of submersibles all use seawater pumps or oil pumps, which are relatively noisy.

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