基于边界层理论的旋流除砂器分离模型构建

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中图分类号：TE95 文献标志码：A DOI：10.3969/j.issn.1003-9015.2025.03.005

文章编号：1003-9015（2025）03-0422-10

Abstract：This study aimed to develop a predictive model for the separation eficiencyof a hydrocyclone-based sand separator basedonboundary layer theory.Numerical simulations were first employed tocalibrate the efective flow rateand efective retention volume of the hydrocyclone，resulting ina formula for calculating residence time.The study thenanalyzed theforces acting on solid particles inthe boundary layer，considering the influence of velocity gradients on particle forces，and derived a radial motion diferential equation suitable for the hydrocyclone.Based on theseadjustments，a refined separation model forthe hydrocyclone was established.Experimental validation results indicate that，for particles larger than 13μm ，the model achieves a relative error of 12%，significantly lower than the 46.5% error predicted by traditional boundary layer theory.This outcome demonstrates a closer alignment with experimental data，offering more precise parameter support for engineering design.

Key words：cyclone desander；separation model；natural cyclone length；numerical simulation；solid-liquid separation

1前言

随着海洋石油资源开采规模的不断扩大，海洋石油资源在能源战略中的地位愈发突出[1]。（剩余11921字）