化工进展2024，Vol.43Issue(z1)：77-84,8.DOI:10.16085/j.issn.1000-6613.2024-0820
全预混水冷低氮沼气燃烧器的燃烧特性
Combustion characteristics of fully premixed water-cooled low-NOx biogas burner
摘要
Abstract
Biogas is a kind of gas transformed by biomass fermentation.At present,the biogas burners are mainly diffused burners and atmospheric burners,which generally have low thermal strength and are easy to blow out.Based on fully premixed water-cooled combustion technology,a kind of water-cooled biogas burner was designed.Then,the effects of CO2 content,excess air coefficient,heat load and cooling water temperature in simulated biogas on combustion characteristics of burners were explored.The results showed that the designed burner had good adaptability for biogas with methane concentration from 55％-80％.As the CO2 content increased,the combustion temperature decreased,the NOx and CO content at the outlet decreased,but the flame length increased.As the excess air coefficient decreased,the combustion heat intensity improved,however,the NOx and CO content in the flue gas increased.The result showed that the heat load of burner had a great influence on the maximum combustion temperature.The burner could still operate stably under the minimum load of 35％.关键词
水冷/全预混/低氮/燃烧特性Key words
water cooled/fully premixed/low NOx/combustion characteristics分类
能源科技引用本文复制引用
张兴邦,薛艳芳,王云刚,焦健,刘羽飞,张益嘉..全预混水冷低氮沼气燃烧器的燃烧特性[J].化工进展,2024,43(z1):77-84,8.基金项目
国家重点研发计划(2021YFC3001803) （2021YFC3001803）
西安市科技计划(20KYPT0001-11-2). （20KYPT0001-11-2）
