Wave energy recovery device and energy recovery method based on electrochemical principle

Abstract

The invention discloses a wave energy recovery device and energy recovery method based on an electrochemical principle, and belongs to the technical field of ocean wave energy recovery. The wave energy recovery device comprises an energy recovery mechanism, wherein the energy recovery mechanism is used for converting wave energy of pressure generated by a seawater liquid level change into electric energy, and the energy recovery mechanism comprises a working electrode, a diaphragm and a counter electrode; the working electrode is made of a double-electric-layer structure material; the energy recovery mechanism converts the wave energy generated by the seawater liquid level change into the electric energy by adopting the pressure-induced potential variation characteristic of the double-electric-layer structure material; and the energy recovery mechanism obtains the current liquid level change according to the relation between the power corresponding to the electric energy obtained by wave energy conversion and the corresponding liquid level change and the current power, thereby achieving real-time recovery of the ocean wave energy. According to the wave energy recovery device, the wave energy can be converted into the electric energy at the low compression frequency, and the wave energy with the frequency lower than the lowest recovery frequency of an existing wave energy recovery device can be recovered, so that the recoverable wave frequency interval is widened.

Description

technical field [0001] The invention belongs to the technical field of marine wave energy recovery, and more specifically relates to a wave energy recovery device and an energy recovery method based on electrochemical principles. Background technique [0002] Due to the rapid consumption of non-renewable energy and the environmental pollution and global warming caused by the use of non-renewable resources, the development and application of renewable energy has attracted extensive attention and developed rapidly. It has broad application prospects for the recycling of renewable energy. [0003] Ocean energy is a renewable energy attached to seawater. The ocean receives, stores and emits energy through various physical processes. These energies exist in the ocean in the form of tides, waves, temperature differences, salinity gradients, and ocean currents. Among them, wave energy is a very good renewable energy source. According to the survey results of the World Energy Counc...

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Problems solved by technology

According to the data, the traditional wave energy generation device based on electromagnetic power generation technology is difficult to effectively generate power under the action of low-frequency and low-amplitude waves. At present, the triboelectric nanogenerator in the frontier field of wave energy recovery in my country recovers wave frequency The range is 0.5-2.5Hz, the maximum output power corresponds to a wave frequency of 1.5Hz, and there are still difficulties in recovering wave energy below 0.5Hz

[0006] The existing relatively stable and efficient wave energy recovery equipment, in order to solve the problem of low energy recovery efficiency, mostly adopts an integrated installation form, which has high maintenance costs and poor resistance to extreme weather. Damping, rectifying equipment, constant pressure equipment and other structures increase the cost and workload of equipment manufacturing, and limit the industrialization and standardized application of wave energy recovery

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