摘要：设计了一种新型旋风分离器。相对于PV型旋风分离器,新型旋风分离器采用弧形导流板分隔进气的入口结构、分流型排气的出口结构、加长型的筒体和锥体的结构,有锥顶过渡段的灰斗结构,并匹配了合理的尺寸。为了验证新型分离器的性能,设计并搭建新型结构和基准PV型旋风分离器的冷模对比实验装置,在入口气速为14. 4～26. 1 m/s、入口含尘质量浓度为0. 01 kg/m³时,同时测量2种分离器的效率和压降。对比实验结果表明:相对于基准PV型分离器,新型旋风分离器能够减小压降约32. 36%,同时保证新型分离器的效率与基准效率相当。

Abstract: A new cyclone separator is designed．Compared with the base of model PV cyclone separator，the new cyclone separator adopts a new inlet structure with arc guide plate separating the intake，a diverged vortex finder，a lengthened cylinder and cone，and a new dust hopper structure with cone transition section，which match the appropriate size．To verify the separation performance of the new separator，a comparative experimental facility including the two kinds of cyclone separators is designed and established．The experiments measuring efficiencies and pressure drop are conducted at the inlet velocity of 14．4 ～ 26．1 m/s under a fixed dust concentration of 0．01 kg /m³ ．The results show that the new cyclone separator can reduce the pressure drop by 32．36% compared with the model PV cyclone separator，while the efficiency of both the separators are approximately equal．

Keywords: cyclone separator; structure optimization; diverged vortex finder; pressure drop; separation efficiency