旋流浓淡煤粉燃烧器出口区域气固两相流动特性的实验研究

采用三维相位多普勒颗粒分析仪（ＰＤＡ）对旋流浓淡燃烧器出口区域两相流动特性进行了实验研究，获得了该燃烧器在不同旋流叶片开度、旋流二次风和直流二次风配比下的气固两仃流场和浓度场的分布规律，并且对这些分布规律进行了分析。

Experimental Study of Gas-Solid Dual-phase Flow Characteristics at the Outlet Zone of a Dense-dilute Pulverized Coal-fired Swirl Burner

With the help of a three dimensional phase Doppler particle analyzer an experimental study was conducted of the dual phase flow characteristics at the outlet zone of a dense dilute swirl burner. As a result, obtained are the distribution relationship of gas solid dual phase flow field and concentration field of the said burner under various degrees of openness of swirl blades and at different ratios of swirl secondary air and direct flow secondary air. In addition, an analysis is also conducted of the above distribution relationship.