On-line hydrogen supply fuel cell system based on water self-circulation

Abstract

The invention discloses an on-line hydrogen supply fuel cell system based on water self-circulation. The fuel cell system comprises an on-line hydrogen supply unit which is used for contacting reactant blocks to be hydrolyzed for hydrogen production with water to carry out hydrolysis hydrogen production reaction to provide hydrogen; a fuel cell unit which is used for using the hydrogen from the on-line hydrogen supply unit as fuel and converting chemical energy of hydrogen and oxygen reaction into electric energy; and a water circulation unit which is used for recovering at least part of the water in the gas-water mixture discharged after the fuel cell unit generates electricity and sending the water as hydrolysis hydrogen production reaction water to the on-line hydrogen supply unit for recycling. According to the fuel cell system, the product water generated after electricity generation of the fuel cell through the hydrogen is recovered by the water circulation system and can participate in the hydrogen supply reaction again, thus reducing the raw water demand of the on-line hydrogen supply technology, reducing the volume and weight of the device and greatly improving the practicability and the portability of the on-line hydrogen supply power supply power system.

Description

technical field [0001] The invention relates to a fuel cell system for applying online hydrogen supply based on water self-circulation. Background technique [0002] As an efficient and pollution-free clean energy, hydrogen energy has been widely used in transportation, national defense industry, metal cutting and other fields. Hydrogen energy has the advantages of good combustion performance, high calorific value, non-toxic and non-polluting combustion products, high utilization rate, and can reduce the greenhouse effect. It is an efficient and clean energy that needs to be promoted and used in the world in the 21st century. [0003] The use of online hydrogen supply can avoid the storage and transportation of hydrogen, which is an effective solution. Among them, various metal powders represented by aluminum powder and sodium borohydride are the most common online hydrogen supply materials at present, but these materials have a fast hydrogen release reaction rate and are v...

AI Technical Summary

Problems solved by technology

However, this kind of material needs to react with water to generate hydrogen, and the introduction of a large amount of water increases the volume and quality of the raw material at the same time. There are many inconveniences in the actual application process, which has a great adverse effect on the popularization and application.

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