Hybrid driven buoyancy regulating device for underwater glider

An underwater glider and buoyancy adjustment technology, applied to motor vehicles, underwater ships, underwater operating equipment, etc., can solve the problems of insufficient technology, limited operating time, and no scale, so as to improve reliability and energy utilization efficiency and broaden the scope of work

Inactive Publication Date: 2018-02-16
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, the buoyancy adjustment device of an underwater glider is driven by loading lithium batteries or other alkaline batteries as an energy source. Restrictions make the operation time limited, it is difficult to operate for a long time, long voyage or enter a specific sea area, and the cost of replacing the battery is high; an

Method used

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  • Hybrid driven buoyancy regulating device for underwater glider
  • Hybrid driven buoyancy regulating device for underwater glider
  • Hybrid driven buoyancy regulating device for underwater glider

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Embodiment 1: The system of the present invention is designed to work in a water depth of 1500m, and to work in a sea area with sufficient temperature difference, and the temperature difference can cover the phase change temperature range of the temperature-sensitive phase change material (9).

[0036] The working process of the present invention in described example one is:

[0037] Stage 1: Floating state on the sea surface

[0038] In the underwater glider, the buoyancy adjustment cabin II and the inner skin bag (15) are pumped into negative pressure in advance, and the inner skin bag (15) is in a contracted state. In the floating state on the sea surface, the whole system floats on the surface water surface, the temperature is relatively high, and the temperature-sensitive phase change material (9) is in a state of liquid expansion when heated; the accumulator (14) is pre-filled with transport liquid, and the nitrogen in it is compressed; 17) Pre-filling with the t...

Embodiment 2

[0047] Embodiment 2: The system of the present invention is designed to work at a water depth of 1500m, and it operates in waters without sufficient temperature difference energy and in working conditions that require emergency flotation.

[0048] The working process of the system of the present invention is that when the underwater glider operates in waters without sufficient temperature difference energy or even inverse temperature difference waters, the two-position three-way valve (22) is connected to the inner skin bag (15) and the outer skin bag (15) through the oil passage D. Skin bag (17), this moment in the buoyancy adjustment cabin II spare oil circuit D starts to work. Due to the lack of temperature difference energy in the working sea area, the accumulator cannot be charged, so the underwater glider cannot use the temperature difference energy to convert enough mechanical energy to change the volume of the skin bag and complete the cycle of surfacing and diving. At...

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Abstract

The invention provides a hybrid driven buoyancy regulating device for an underwater glider. The hybrid driven buoyancy regulating device comprises a heat exchanger and a buoyancy regulating cabin. A heat exchanger pressure-proof shell is filled with a temperature-sensitive phase-change material. A heat exchanger hose is filled with transmission fluid and connected to a hose plug in a sealing way.The two ends of the heat exchanger pressure-proof shell are connected through a flat head and an oval head, and O-rings are adopted for sealing. The heat exchanger and the buoyancy regulating cabin are connected by adopting pipelines. The buoyancy regulating cabin comprises an accumulator, an internal skin, a bidirectional gear pump, an outer skin, a control circuit board and pipelines. The permeable outer skin and the heat exchanger are suspended outside the glider body to bear the sea water pressure, and the buoyancy regulating cabin is arranged in the glider main shell. The pipelines insidethe buoyancy regulating cabin cooperate with the heat exchanger outside the cabin and the outer skin, and thus the buoyancy is changed. The hybrid driven buoyancy regulating device utilizes the temperature difference energy of the working sea depth and the bidirectional gear pump for driving, the working range of underwater gliding is widened, the working hours are increased, and the reliabilityand the energy utilization rate are improved.

Description

technical field [0001] The invention relates to a buoyancy regulating device based on an underwater glider, in particular to a hybrid driving buoyancy regulating device utilizing ocean temperature difference energy and a bidirectional gear pump. Background technique [0002] The 21st century is the era of the ocean, and the development of marine economy and science and technology has become one of the important signs of the comprehensive strength of all countries in the world. Countries are increasingly conducting marine development activities in different sea areas. However, whether it is the exploration and development of marine resources, or scientific research, national defense and other activities are inseparable from underwater vehicles. And these vehicles with different shapes and functions have gradually become the main means of ocean development and military activities. [0003] There are many types of underwater vehicles, which can be roughly divided into underwat...

Claims

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Application Information

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IPC IPC(8): B63G8/14
CPCB63G8/14
Inventor 韩鹏黄桥高潘光曹永辉施瑶
Owner NORTHWESTERN POLYTECHNICAL UNIV
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