流体机械2023，Vol.51Issue(11)：51-56,6.DOI:10.3969/j.issn.1005-0329.2023.11.008
双给料口结构对旋流器流场特性和分级性能的影响
Effects of double inlets on flow field patterns and classification performance of hydrocyclone
摘要
Abstract
For the problems of unstable inner flow field and poor classification sharpness of the traditional hydrocyclone with single inlet,the effects of symmetrical double inlets on the inner flow field patterns and classification performance of the hydrocyclone were investigated.The inner flow field results show that,compared with the traditional single inlet,when the symmetrical double inlet is adopted,the tangential velocity,axial velocity and pressure of the flow field all increase,the diameter of the air core increases,and the symmetry of the air core is enhanced.The interface between the inner vortex flow and the outer vortex flow,that is,the LZVV,has a more regular shape.The turbulence intensity is reduced,and the stability of the inner flow field is enhanced.The classification results show that when the symmetrical double inlet is adopted,the recovery to underflow of fine particles decreases,while the recovery to underflow of 12.5μm coarse particles increases by 7.87%,the solid particles are regularly distributed along the radial direction,the misplacement phenomenon is alleviated,and the classification sharpness is improved.The research results can provide theoretical guidance for the geometrical optimization of the hydrocyclone.关键词
水力旋流器/双给料口/流场特性/分级性能/数值模拟Key words
hydrocyclone/double inlets/flow field pattern/classification performance/numerical simulation分类
机械制造引用本文复制引用
张彩娥,潘程尧,冉金城,陆帅帅,王丽娟,孙伟,董鸿良,宋宝旭..双给料口结构对旋流器流场特性和分级性能的影响[J].流体机械,2023,51(11):51-56,6.基金项目
国家自然科学基金项目(52004153) （52004153）
山东省自然科学基金项目(ZR2020QE139、ZR2020QE143) （ZR2020QE139、ZR2020QE143）
