Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF6 Cites 21 Cited by
  • 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; and the temperature difference energy is a kind of renewable energy, which has a long-term development prospect and is the future development of underwater gliders. A new trend, but its technology is relatively imperfect, and due to the influence of working conditions (need sufficient temperature difference) and range, it has not formed a scale

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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
Comparison scheme
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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B63G8/14
CPCB63G8/14
Inventor 韩鹏黄桥高潘光曹永辉施瑶
Owner NORTHWESTERN POLYTECHNICAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com