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无焰燃烧技术有设备简单、温度均匀、燃烧稳定、效率高和排放低等特点,被称为21世纪最有发展前景的燃烧技术之一。本文结合多篇国内外研究文献,总结了他们各自无焰燃烧方式的特点及其判定方法。接着列举了几种实现无焰燃烧的技术手段,包括充入氮气、高速射流和特殊燃烧室结构等。最后分别对气体燃料和固体燃料的无焰燃烧机理进行分析,从基元反应的角度说明了无焰燃烧排放低的原因,并列举了无焰燃烧技术在工业中的应用实例。
Flameless combustion technology with simple equipment, uniform temperature, stable combustion, high efficiency and low emissions, known as the 21st century, one of the most promising combustion technology. This article combines many domestic and foreign research literature, summarizes the characteristics of their respective flameless combustion method and its determination method. Then, several technical measures to realize flameless combustion are listed, including filling nitrogen, high-speed jet and special combustion chamber structure. Finally, the flameless combustion mechanism of gaseous fuels and solid fuels were analyzed respectively. The reason of low emission of flameless combustion was described from the perspective of elementary reaction, and the application example of flameless combustion technology in industry was listed.