关键词: 双出风型旋风筒;下出风口;阻力损失;分离效率

Abstract: The effect of pipe size and height of lower air outlet on pressure loss and separation efficiency of double outlet cyclone was studied by means of cold modeling test .The results indicate that the pressure loss decreased as pipe size of lower air outlet increased , the drag coefficient (ζ) of the system decreased by 10.64％when diameter of lower outlet ( d) added 0.2D, although separation efficiency of cyclone has decreased slightly , it is still at a high level .On the other hands , the pressure loss increased as height of lower air outlet increased, the lower outlet height(h) added 0.1d , drag coefficient(ζ) increased by 6.62％.

Key words: double outlet cyclone separator;lower air outlet;pressure loss;separation efficiency