A composite power underwater glider using battery electric energy and ocean temperature difference energy

Abstract

The invention discloses a composite power underwater glider using battery electric energy and ocean temperature difference energy. The main part of the composite power underwater glider is composed of the main body of the composite power underwater glider, and the cabin section is fixed in sequence along the axis of rotation of the cylinder. The heat exchanger is hung on the belly of the main body, and the horizontal wings are arranged horizontally on both sides of the rear pressure cabin. The battery pack of the composite power underwater glider has two degrees of freedom of translation and rotation, and can adjust the pitch angle and heading angle of the underwater glider. The hydraulic components and the heat exchanger in the main body constitute the hydraulic oil circuit. During the diving preparation stage of the composite power underwater glider, the oil return circuit works; during the diving gliding stage, the solidification oil circuit works; The pumping oil circuit works; in the floating gliding stage, the energy storage oil circuit works to realize the buoyancy driving process by combining energy in the form of battery electric energy and ocean temperature difference energy.

Description

technical field [0001] The invention belongs to the technical field of new marine unmanned vehicles, and in particular relates to a composite power underwater glider using two energy sources, the electric energy of a self-carrying battery and the ocean temperature difference energy in a natural environment. Background technique [0002] Underwater glider is a kind of ups and downs in seawater relying on the change of buoyancy state. It uses wings to convert buoyancy into horizontal driving force. The trajectory-moving unmanned underwater vehicle has the advantages of strong self-sustainability, long endurance, and high cost-effectiveness. It is suitable for carrying out large-scale, long-sequence three-dimensional continuous ocean observation activities, and has broad application prospects in the field of ocean observation. [0003] At present, commercial underwater gliders rely on their own battery power to meet the energy required for the gliding buoyancy drive process and...

AI Technical Summary

Problems solved by technology

[0004] However, the temperature difference energy underwater glider scheme still has many deficiencies: 1. The temperature difference energy drives the underwater glider. There is no other buoyancy driving energy except the temperature difference energy of the ocean environment. If the temperature difference energy conversion and utilization system fails, the temperature difference energy underwater glider will lose its continuous navigation. 2. The sea area and seaworthy time range of the thermoelectric energy glider are limited, and limited by the thermophysical properties of the phase change material that captures the ocean thermal energy, a temperature difference of more than 10°C must exist in the ocean to satisfy the thermal energy water. The continuous operation requirements of the glider are affected by the solar radiation intensity of the surface seawater and the latitude of the earth. The sea area that meets the temperature difference condition for the continuous operation of the underwater glider generally only exists between the earth's north and south latitudes of 35°, and some sea areas are only navigable in summer. ; 3. Unconventional temperature profile ocean phenomena such as weak temperature difference and inverse temperature difference randomly exist in the ocean. When encountering such ocean phenomena, the temperature difference can cause the glider to lose power underwater, and there is a risk of not being able to surface and being lost

Images