摘要
具有超低氮氧化物排放特性的表面燃烧技术是日后工业燃烧器的主流技术。搭建有限空间的金属纤维表面燃烧器的实验台,以天然气为燃料,通过实验的方法模拟表面燃烧器的燃烧状况,对有限空间金属纤维表面燃烧器的火焰形态、火焰高度、火焰传播速度、燃烧产物等燃烧特性进行了实验研究。实验结果表明,过量空气系数对于有限空间金属燃烧器的燃烧特性尤为重要,在表面燃烧器应用于锅炉等有限空间时,过量空气系数应控制在最佳值范围内,才能保证燃烧的充分、稳定、安全和低氮排放。
Surface burners with ultra-low nitrogen oxide emissions are the mainstream technology for industrial burners in the future.It simulates the combustion conditions of a surface burner and builds an experimental platform for a limited space metal fiber surface burner.Using natural gas as fuel,the combustion characteristics of the flame shape,flame height,flame propagation speed,and combustion products of the limited space metal fiber surface burner were experimentally studied through experimental methods.The experimental results indicate that the excess air coefficient is particularly important for the combustion characteristics of metal burners in confined spaces.When surface burners are applied in limited spaces such as boilers,there is an optimal value for the excess air coeficient to ensure sufficient,stable,safe,and low nitrogen emissions during combustion.
作者
程静
甘云华
李东晖
徐艳
CHENG Jing;GAN Yunhua;LI Donghui;XU Yan(Shenzhen Institute of Quality and Safety Inspection and Testing,Shenzhen 518109,China;Electric Power School,South China University of Technology,Guangzhou 510640,China)
出处
《工业加热》
2025年第11期12-16,共5页
Industrial Heating
基金
国家市场监管总局科技计划项目(2023MK142)。
关键词
表面燃烧器
燃烧特性
过量空气系数
surface burner
combustion characteristics
excess air coefficient
