Natural gas and hydrogen dual-fuel combustion system

• Main Authors: LIU XIAOCHUAN, CHEN LINGQING, LIU GANG, YAN KE, LIU YONGCAI, ZHOU JIAN
• Format: Patent
• Language: Chinese; English
• Published: 12.07.2024
• Subjects: AIR; BLASTING; BURNERS; COMBUSTION APPARATUS; COMBUSTION PROCESSES; FEEDING FUEL TO COMBUSTION APPARATUS; HEATING; LIGHTING; MECHANICAL ENGINEERING; METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN; WEAPONS

The utility model discloses a natural gas and hydrogen dual-fuel combustion system which comprises a combustor, a main combustion chamber and an auxiliary combustion chamber. A natural gas and hydrogen segmented feeding and segmented combustion mode is adopted. Natural gas is supplied to the upstream, mixed with all combustion air and combusted in the main combustion chamber, and lean-burn premixed combustion is achieved. And hydrogen is supplied into the auxiliary combustion chamber for combustion, and inert flue gas participates in the hydrogen, so that the combustion temperature can be greatly reduced, and the effect of inhibiting generation of NOx is achieved. 本实用新型公开一种天然气氢气双燃料燃烧系统，包括：燃烧器、主燃烧室及辅燃烧室。采用天然气、氢气分段供入，分段燃烧的方式。天然气供入上游与全部助燃空气混合并在主燃烧室中进行燃烧，为贫燃预混燃烧；氢气供入辅燃烧室进行燃烧，由于有惰性烟气参与其中，可极大降低燃烧温度，从而达到抑制NOx的生成的效果。