Electrolyte flow and pressure control method and system for dynamic hydrogen production electrolytic bath

Abstract

The invention belongs to the field of renewable energy sources and hydrogen energy, and discloses an electrolyte flow and pressure control method and system for a dynamic hydrogen production electrolytic bath. The method comprises the following steps: S1, obtaining the external power supply input power of the electrolytic bath; and S2, comparing the input power of the external power supply with the preset power of the electrolytic bath; when the input power of the external power supply is greater than the preset power of the electrolytic bath, rising the electrolytic current, increasing the pressure of the electrolytic bath and increasing the electrolyte flow; and when the external power input power is smaller than the preset power of the electrolytic cell, reducing the electrolytic current, reducing the electrolytic bath pressure, and reducing the electrolyte flow. According to the invention, safe, stable and efficient operation of the electrolytic bath in the dynamic hydrogen production process is realized through automatic adjustment of the pressure and flow of the electrolyte, and absorption of renewable energy sources is realized through hydrogen production by using electrolyzed water.

Description

technical field [0001] The invention belongs to the field of renewable energy and hydrogen energy, and in particular relates to a method and system for controlling electrolyte flow and pressure of a dynamic hydrogen production electrolyzer. Background technique [0002] At present, renewable energy power generation accounts for an increasing proportion in the world, and its inherent volatility requires that renewable energy power generation must be equipped with a certain-capacity energy storage system to meet the needs of stable and safe energy output. Hydrogen production by electrolysis of water is currently the only technology capable of large-scale, long-term renewable energy storage. However, traditional water electrolysis hydrogen production technology and equipment are designed for stable power input, and they lack the matching of fluctuating power input, that is, the dynamic hydrogen production process. [0003] Under the input of fluctuating power supply, the worki...

AI Technical Summary

Problems solved by technology

However, traditional water electrolysis hydrogen production technology and equipment are designed for stable power input, and they lack the matching of fluctuating power input, that is, the dynamic hydrogen production process.

[0003] Under fluctuating power input, the working current of the electrolyzer fluctuates with the fluctuation of the input power, resulting in large fluctuations in the rate of gas generation

In addition, the distance between the electrode and the diaphragm of the current electrolytic cell is relatively small, which easily leads to the accumulation of gas in the electrolytic cell space, resulting in a large resistance, resulting in increased operating costs, and accelerated loss of equipment and materials

Images