中文摘要：

综述了近年来关于入口结构包括入口结构类型、入口截面形状以及入口下倾角度等对旋风分离器性能影响的研究。认为不同的入口结构参数设计对旋风分离器的性能及能耗有较大影响;随着入口数量增多,分离器压降降低,分离效率先升高后减少,双进口分离器的性能较优。入口截面形状采用倒三角形有利于提高分离效率,但压力损失增加;对于矩形入口旋风分离器,增大高宽比有利于提高分离效率,但也会增大压力损失。随着入口截面角的增加,压力损失降低,分离效率先升高后减小,存在有最优的入口截面角;螺旋下倾角能够改善旋风分离器的分离性能,降低压力损失并有效减少上灰环现象的发生。

英文摘要：

The researches on effect of inlet structure on the performance of cyclone separator were reviewed in this paper. The inlet geometry included inlet structure type, inlet section shape and inlet declination angle, etc. It was regarded that different inlet parameters affected the performance and energy consumption of cyclone separator greatly. With the increase of inlet number, the pressure drop of cyclone reduced and separation efficiency decreased after rising first, the double inlet cyclone was the optimal choice. Adopting inverted triangle as inlet section shape was conducive to improve the separation efficiency, but the pressure loss increased. For rectangular inlet cyclone separator, increasing the ratio of height to width was beneficial to improve the separation efficiency, but also increased the pressure loss. With the increase of inlet section angle, the pressure drop reduced and separation efficiency decreased after rising first, there was an optimal inlet section angle. Helix declination angle could improve the separation performance of cyclone separator, reduced pressure loss and alleviated effectively the ash ring existing at the roof of cyclone.