Wind-light-electricity-hydrogen storage integrated combined supply system for directly electrolyzing seawater to produce hydrogen and oxygen

Abstract

The invention provides a wind-light-electricity-hydrogen storage integrated combined supply system for directly electrolyzing seawater to produce hydrogen and oxygen. The system comprises a wind power generation unit, a photovoltaic power generation unit, a seawater electrolysis-to-produce hydrogen and oxygen unit, an electrolyte cooling and desalting unit and a seawater pump station; the wind power generation unit and the photovoltaic power generation unit are connected with the seawater electrolysis-to-produce hydrogen and oxygen unit; the seawater pump station is connected with an electrolytic water tank of the seawater electrolysis-to-produce hydrogen and oxygen unit; a negative electrode and a positive electrode are arranged in the electrolytic water tank; the positive electrode is coated with a conductive coating with negative charges; and the electrolyte cooling and desalting unit is circularly communicated with the seawater electrolysis-to-produce hydrogen and oxygen unit. According tot the wind-light-electricity-hydrogen storage integrated combined supply system for directly electrolyzing seawater to produce hydrogen and oxygen, wind energy and solar energy renewable energy sources are converted into electric energy, the electric energy is provided for the seawater electrolysis-to-produce hydrogen and oxygen unit, so that the power consumption cost is reduced, and environmental protection is achieved; the seawater electrolysis-to-produce hydrogen and oxygen unit takes seawater as electrolyte, so that the loss of fresh water resources is reduced, the hydrogen production cost is reduced, the hydrogen production efficiency is ensured, the service life of the positive electrode is prolonged, and the development of hydrogen production by electrolyzing water is promoted.

Description

technical field [0001] The invention relates to the field of new energy technology, in particular to a hydrogen-oxygen co-supply system for direct electrolysis of seawater for direct electrolysis of seawater with integrated hydrogen storage. Background technique [0002] Among the current methods of hydrogen production, only hydrogen production by electrolysis of water is the most environmentally friendly. Other hydrogen production methods are accompanied by the generation of a large amount of carbon dioxide. Generally speaking, the production of 1kg of hydrogen is accompanied by CO 2 The highest production amount reaches as much as 11kg, CO as a greenhouse gas 2 A small amount of emissions should also be subject to high carbon emissions taxes. Therefore, to make hydrogen economical and environmentally friendly is to use electrolysis of water to produce hydrogen. The electrolytic water hydrogen production process is simple, pollution-free, high-purity (up to 99.99%), and r...

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Problems solved by technology

[0006] The present invention provides a wind power hydrogen storage integrated system for direct electrolysis of seawater to produce hydrogen and oxygen co-supply system, which can be used to solve the problem of electrolyzing water to produce hydrogen in the prior art Excessive consumption of fresh water resources and high power consumption lead to high cost of hydrogen production from electrolyzed water. Realize the use of wind energy and solar power to directly electrolyze seawater to produce hydrogen, reducing the cost of electrolyzed water to produce hydrogen

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