三通道煤粉燃烧器湍流场热线测试研究

The Defection of Turbulent flow Pattern of Three Channel Pulverized Coal Burner

采用双通道热线风速仪对典型三通道煤粉燃烧器形成的等温湍流场进行了测试研究，给出了轴向、切向平均速度的分布规律，探讨了相应的湍流强度分布曲线，分析了回流区、回流量的变化规律.所得结果对指导煤粉燃烧器的操作，开发新型三通道煤粉燃烧器及加深理解燃烧机理均有一定帮助。

The turbulence flow field produced by a typical threechannel burner model has been surveyed with the two-sensorhot-film probe The axial and tangential velocities,turbulenceintensity and the recirculating length,mass flow rate in the recirculation zone are discussed.The results are very useful to guideoperating the kiln,to develop the new type three channel burners and to understand the burning mechanism It can be used as basisfor carrying out further theoretical research.