为了研究轴流旋风分离器性能的结构影响因素，采用Fluent软件对装有不同内径端盖和不同种类旋流子的旋风分离器的流场进行了数值模拟，同时用Fluent中的DPM模型分析了不同尺寸及种类的旋风分离器对水颗粒的分离效果。结果表明：较小的端盖内径可以提高旋风分离器的分离效率，但是带来更大的阻力；旋流子叶片的螺旋角度是影响分离效率的主要因素，螺旋角度越大则分离效率越高，但是阻力也会随之增加；叶片数量不是影响阻力的主要因素。

In order to study the structural factors affecting the performance of the axial flow cyclone separator, Fluent software was used to numerically simulate the flow field in cyclone separator with end covers of different inner diameters and different types of cyclones. Meanwhile, DPM model in Fluent was used to analyze the separation effect of each cyclone separator of different sizes and types on water particles. The result shows that the smaller inner diameter of the end cover can improve the separation efficiency, but bring more resistance. The helical angle of the cyclone blade is the main factor affecting the separation efficiency. Larger helical angle can bring higher separation efficiency, but resistance will increase accordingly; the number of blades is not the main factor affecting the resistance.

TH237.5

国家科技重大专项(J2019-I-0007-0007)