不同进口形式方形分离器的试验研究  

Experimental Study of a Square-shaped Separator with Different Inlet Forms

作　　者：郑安桥[1] 苏亚欣[1] 万鑫[1] 

机构地区：[1]东华大学环境科学与工程学院,上海201620

出　　处：《热能动力工程》2008年第3期293-297,共5页Journal of Engineering for Thermal Energy and Power

摘　　要：通过改变分离器进气形式,对方形分离器的性能进行了试验研究。结果表明:各分离器的切割粒径,随进口风速的增大而减小(见图5),随进口颗粒浓度的增大先减小后增大(见图7、图9);各分离器的阻力,随进口风速的增大而增大(见图6),随进口颗粒浓度的增大而减小(见图8、图10)。在分离特性方面,正切向单进口形式优于正切向双进口,在斜切向双进口形式优于斜切向单进口,正切向进气形式优于斜切向进气。在阻力方面,正切向双进口形式优于正切向单进口,斜切向单进口形式优于斜切向双进口,斜切向进气形式优于正切向进气。研究结果为方形分离器结构的优化设计提供了依据。By changing the steam inlet forms of a separator,an experimental study has been conducted of the performance of a square-shaped separator.The results of the study indicate that the cut particle diameter of various separators decreases with an increase of inlet air speed (see Fig.5) and with an increase of the particle concentration at the inlet,the particle diameter first decreases and then increases (see Fig.7 and 9).The drag forces of various separators increase with an increase of the inlet air speed (see Fig.6) and decrease with an increase of the inlet particle concentration (see Fig.8 and 10).With respect to separation characteristics,the single inlet form of tangential direction is better than the double inlet form of the said direction; the double inlet form of oblique tangential direction is superior to the single inlet form of the said direction.The inlet form of the tangential direction is better than the inlet of the oblique tangential direction.As for the drag forces,the double inlet form of the tangential direction is better than the single inlet form of the aforementioned direction; the single inlet form of the oblique tangential direction is superior to the double inlet form of the said direction and the gas inlet form of the oblique tangential direction is better than that of the tangential direction.The research results can provide an underlying basis for the structural optimization design of square-shaped separators.

关 键 词：循环流化床 分离器 方形旋风分离器 分离机理 分离效率 

分 类 号：TK223.2[动力工程及工程热物理—动力机械及工程]