A water hydraulic buoyancy adjustment device and method

Abstract

The invention discloses a water hydraulic buoyancy regulating device and method. The water hydraulic buoyancy regulating device comprises a housing, wherein the inside of the housing is charged with gas with certain pressure; an inner container for containing water, a first water hydraulic control check valve, a first container for containing water, a two-way acting water hydraulic pump-motor, a second container for containing water and a second water hydraulic control check valve are arranged in the housing, wherein the inner container is an elastic flexible container of which the volume changes with the changes of the volume of water contained in the inner container; and a motor connected with the two-way acting water hydraulic pump-motor is also arranged in the housing. According to the water hydraulic buoyancy regulating device and method disclosed by the invention, the structure is simple, submergence and floating upward of the housing can be regulated by changing the mass of the inner container, so that automatic submergence and floating upward as well as depth setting control of equipment, such as underwater robots, buoys, deep submergence vehicles and gliders, are realized. Through full utilization of water depth pressure energy, the working efficiency of the water hydraulic buoyancy regulating device is improved, and besides, the working pressure required by a water hydraulic pump and the pressure borne by the housing are reduced, the weight and the volume of the housing are decreased, and conditions for further increasing a submergence depth are created.

Description

technical field [0001] The invention belongs to the field of buoyancy regulating devices, and in particular relates to a water hydraulic buoyancy regulating device and method for realizing automatic submersion, floating and depth-fixing control of underwater robots, buoys, deep submersibles, gliders and other equipment in the field. Background technique [0002] The hydraulic drive buoyancy adjustment systems disclosed in the prior art include oil hydraulic buoyancy adjustment type and water hydraulic buoyancy adjustment type. [0003] Chinese invention patent CN102079375 A, master's thesis "Development of Oil Bag Type Buoyancy Adjustment Device" (Huazhong University of Science and Technology, Fang Xu) discloses oil-hydraulic buoyancy adjustment system such as figure 1 As shown, it mainly includes inner and outer containers, one-way valves, electromagnetic reversing valves, two-way hydraulic pumps, motors, etc., wherein the outer container is a sealed cavity and placed in th...

AI Technical Summary

Problems solved by technology

Although the water hydraulic technology is compatible with the marine environment, has the advantages of automatic compensation of sea depth pressure, low operating cost, and easy handling of the working medium, it requires multiple additional solenoid valves and one-way seawater pumps to complete the system's submersion and surfacing. , not only the system structure is complex, but also there are problems such as high pump working pressure, unused deep sea pressure energy, and large shell pressure

It should be noted that the solenoid valve used in this scheme needs a special control signal, and it needs to be powered on all the time during the floating and diving process, which wastes energy. Once the solenoid valve fails, the device will not work, which will affect the stability of the device.

Images