排尘管结构对旋风分离器性能影响的数值模拟研究

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中图分类号：TP391.9 文献标志码：A 文章编号：1671-5276（2025）06-0164-05

Abstract：Aseriesofcycloneseparatorswithdiferentdustchimneystructure wereobtainedbyadjusting theratioofthetopand botomdiametersofthe Swiftcycloneseparator.Theimpactofdustchimneystructureontheflowfieldandgas-solidseparation performanceof cyclone separator were investigatedusing the Reynolds Stress Model andthe Discrete Phase Model.The numerical simulation results show that when the ratio of the top and botom diameters of the dust chimney is 2：1 ，the tangential velocity in cyclone barrlincreasesandthepressuredropdecreases，whichalleviatestheflapping motionofvortexcone.Compared withthe standardswiftcyclone separator，theseparation eficiencyof theconicalcyclone separator forparticleswith diametersof 5μm and 10μm increases by 31.6percent and 12.88percent respectively.

Keywords：cyclone separator;numerical simulation；dustchimney structure；flow field feature；separation efficiency

0 引言

旋风分离器因其能耗低、结构简单、适应性强等优点，被广泛应用于石油化工、建筑、机械和环保等领域的气固分离[1-2]。（剩余5852字）