Marine vehicles harnessing wave energy

Abstract

A marine vehicle utilizing wave energy comprises a water surface platform, an underwater pusher and an umbilical cable connected between the water surface platform and the underwater pusher. The underwater pusher is hinged to a plurality of vibration wings, and each vibration wing is mounted on a rotary shaft and swings around the rotary shaft vertically in a reciprocating manner; the umbilical cable is provided with a rope, a storage battery is arranged on the water surface platform, the water surface platform and the underwater pusher are provided with a water surface wave energy generating device and an underwater wave energy generating device respectively, and the water surface wave energy generating device comprises a link mechanism connected to the rope; under the effect of waves, the rope drives a first rotor to perform reciprocating linear motion relative to a first stator of a first linear motor through the link mechanism; the underwater wave energy generating device comprises a chain connected to rotary wheels of the rotary shafts of the vibration wings in a wrapped manner, when the vibration wings swing around the rotary shafts vertically in a reciprocating manner, the chain drives a second rotor to perform reciprocating linear motion relative to a second stator of a second linear motor. The marine vehicle is capable of implementing pushing and power supplying functions on the basis of wave energy.

Description

technical field [0001] The invention relates to the technical field of devices utilizing ocean wave energy, in particular to an ocean vehicle capable of simultaneously converting wave energy into propulsion mechanical energy and electrical energy. Background technique [0002] Wave energy in the ocean has the characteristics of rich reserves, high energy density, wide distribution, and large-scale local energy recovery. The energy of a wave is proportional to the square of the wave height, the wave period, and the width of the wave-facing surface. The wave energy power per square kilometer of sea surface can reach 100,000 to 200,000 kW. If the wave energy in the ocean is used to convert it into the electrical energy required by marine vehicles, and to provide energy supplementary supply for the power system of marine vehicles, the endurance and continuous working time of marine vehicles will be greatly improved. Obtain nearly unlimited endurance, and if the wave energy in t...

AI Technical Summary

Problems solved by technology

At present, the wave glider is mainly divided into two directions in the aspect of utilizing wave energy. One is to convert wave energy into electric energy storage, and then supply energy for propellers. Underwater glider and its charging method", by adjusting the center of gravity and attitude of the underwater glider, and making full use of the shape characteristics of the underwater glider - the wide glider wing and the slender cylindrical hull, and the two differences The difference in the response of the hydrodynamic components in the wave tumbling motion generates electricity, using the relative motion of the two to generate mechanical energy, and directly converting the mechanical energy into electrical energy through the transmission mechanism and the power generation device, and storing it in the battery component. This energy conversion method has energy The problem of low conversion rate, and because the underwater glider often needs to change its attitude by greatly adjusting the center of gravity when charging with wave energy, it usually does not work properly when charging, and it is difficult for wave energy to continuously supply power to the propeller; the other is wave-driven gliding Propulsion technology, which is to directly convert wave energy into propulsion kinetic energy, such as the "wave energy" disclosed in Chinese patent CN102126546A, which specifically discloses a wave energy surface vehicle, including surface floats, underwater animals and ropes, when the animals move up and down When the fin interacts with the water, it generates a force that propels the vehicle forward. Because its energy conversion mechanism is relatively simple, it has high reliability and high conversion efficiency, but the patent document does not disclose The energy supply problem of the installed system and equipment is usually self-contained power supply or power supply through absorption and utilization of solar energy. However, in the event of severe weather, especially long-term rainy weather caused by climate factors, the solar power supply system will fail for a long time and automatically The power supply of the backup power supply is limited, and it is difficult for these two power supply methods to guarantee the long-term continuous power supply of the equipment of the observation and monitoring system.

It can be seen that the application of wave energy in propulsion and power generation and energy storage in the prior art is independent. Either use wave energy to generate electricity or use wave energy to propel, and the use of wave energy is limited.

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