Buoyancy adjusting system and method for medium-shallow depth submersible

Abstract

The invention provides a buoyancy adjusting system and method for a medium-shallow depth submersible. The system comprises a water tank assembly, a drainage branch and an emergency drainage branch, the water tank assembly structurally comprises a water tank, the water tank is a low-pressure-resistant component, and a sea opening is formed in the bottom of the water tank; the drainage branch structurally comprises a gas cylinder set, and the output end of the gas cylinder set is sequentially connected with a manual switching valve, a throttling valve, a first gas inlet valve, a check valve, a first seawater filter and a first fixed throttling hole in series through a pipeline; the emergency drainage branch structurally comprises an emergency gas cylinder, and the output end of the emergency gas cylinder is sequentially connected with an emergency switch valve, a second gas inlet valve, a third seawater filter and a third fixed throttling hole in series through a pipeline; a deflation valve, a second fixed throttling hole and a second seawater filter are further connected to the top face of the water tank in series, an output port of the second seawater filter is communicated with the external seawater environment, the floating and diving functions of the submersible can be achieved, buoyancy fine adjustment of the submersible can also be achieved, and the submersible has the advantages of being low in cost and high in 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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