新型缝隙式直流燃烧器的研究与应用

Research and application on new type split direct flow burner in W-flame boiler

针对缝隙式燃烧器"W"型火焰锅炉存在的燃烧稳定性差、燃烧效率低、结渣严重等问题,通过燃烧机理分析和数值模拟试验,设计了一种新型缝隙式直流燃烧器。其主要特点是将乏气风火嘴布置于炉膛中心侧相邻的2条二次风处,一次风喷口背火侧布置1个二次风喷口。实践证明,新型缝隙式直流燃烧器使锅炉燃烧稳定性和锅炉燃烧效率得到提高,炉膛结渣现象得到有效控制。

For the problems of the poor combustion stability,low combustion efficiency and severely slagging in W flame boiler split burner,based on the analysis of combustion principle and the numerical simulation experiment,a new type split direct flow burner was designed.The exhaust gas fire nozzle was laid in two secodary air areas next to the furnace center.A secondary air nozzle was laid in a primary air nozzle next to water wall.The results show that new type split burner enhance the combustion stability and combustion efficiency of the boiler,and slagging can be effectively controlled.