Precise adjustable ballast device

Abstract

The invention discloses a precise adjustable ballast device. The device comprises ballast balls, a ballast tank, a pipeline, a shell body, a front end cover, a rotating shaft, an impeller and a rear end cover; the ballast balls are located in the ballast tank, and the top of the ballast tank is provided with an opening used for adding the ballast balls; the bottom of the ballast tank is in a funnel shape, and the bottom of the funnel is connected to the upper portion of the pipeline; the two end faces of the shell body are provided with the front end cover and the rear end cover respectively,the bottom of the rear end cover is provided with an opening used for being connected with the lower portion of the pipeline; the impeller is located in the shell body, is concentric with the shell body, and comprises a plurality of blades; the rotating shaft penetrates through the shell body, the front end cover, the impeller and the rear end cover, and the rotating shaft is used for driving theimpeller to rotate; the circumference of bottom of the shell body is provided with an opening used for rolling the ballast balls out. The precise adjustable ballast device has the advantages that thecomplexity of a system is reduced, the adjustment rate and the quality can be precisely controlled, pressure-proof design is not needed, and when autonomous underwater vehicles are arranged symmetrically at the left and right, the function of rolling attitude adjustment also can be achieved.

Description

technical field [0001] The invention belongs to the technical field of underwater vehicles, relates to a manned submersible, in particular to a precision adjustable ballast device. Background technique [0002] When a manned submersible is operating underwater, it is required to be in a state of zero buoyancy, that is, its own gravity is equal to the buoyancy. Due to different operating depths and different salinity in each sea area, there are differences in seawater density, and there is always a difference between the calculated buoyancy value and the actual value. In order to make up for this difference, the way of adjusting the ballast is usually adopted. In addition, when the manned submersible performs sampling operations, the original zero-buoyancy state will also be destroyed due to the increase in sample weight, and ballast needs to be adjusted at this time. [0003] In the prior art, the gravity of the submersible is usually adjusted by adjusting the amount of se...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the gravity of the submersible is usually adjusted by adjusting the amount of seawater in the ballast water tank, and then it is balanced with the buoyancy, but there are the following problems: due to the low density and low viscosity of seawater, serious internal leakage during deep sea operations, resulting in poor regulation efficiency. Not high, the adjustment range is small, and the system complexity is too high

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