High-safety and high-efficiency peak shaving and frequency modulation system using urea wastewater for wind power hydrogen production

Abstract

The invention discloses a high-safety and high-efficiency peak shaving and frequency modulation system using urea wastewater for wind power hydrogen production. An output end of a wind power generation system is connected with an input end of a power distributor; two output ends of a power divider are respectively connected with an input end of a transformer and a charging interface of a storage battery; a discharge interface of the storage battery is connected with a power interface of an electrolytic cell; a urea wastewater input pipe is communicated with a liquid inlet of the electrolytic cell sequentially through a filtering device and a wastewater storage tank; a cathode product outlet of the electrolytic cell is communicated with a hydrogen inlet of a fuel cell sequentially through ahydrogen buffer tank, a hydrogen compressor and a hydrogen storage tank; an output end of the fuel cell is connected with an input end of the transformer, and an anode product outlet of the electrolytic cell is communicated with an inlet of the oxygen storage tank sequentially through the oxygen buffer tank and an oxygen compressor; and an output end of the transformer is connected with a power grid. According to the invention, the system can achieve the electrolysis hydrogen production of urea in urea waste water through wind abandoning and electricity abandoning, and the hydrogen productionamount and the service life of the electrolytic cell are better.

Description

technical field [0001] The invention belongs to the technical field of hydrogen production and environmental protection, and relates to a high-safety and high-efficiency wind power hydrogen production peak-shaving and frequency-regulating system for urea wastewater. Background technique [0002] With the rapid development of hydrogen fuel cells, hydrogen, as the cleanest and most efficient energy source, has received extensive attention in recent years. The current large-scale hydrogen production methods are mainly steam reforming of natural gas (including naphtha, heavy oil, refinery gas, coke oven gas, etc.), coal (including coke and petroleum coke, etc.) hydrogen production, and urea or ammonia cracking hydrogen production. , water electrolysis and other hydrogen production technologies, but the conversion of fossil energy cannot completely avoid zero carbon emissions. Water electrolysis hydrogen production obtains high-purity hydrogen through electrolysis of water, and ...

AI Technical Summary

Problems solved by technology

[0009] However, due to the randomness, intermittentness and volatility of wind power output, when the excess wind power is directly connected to the electrolyzer, it will affect the hydrogen production and the service life of the electrolyzer

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