筒体直径对旋风分离器性能的影响

发布时间：2018-03-30 22:19

本文选题：旋风分离器　切入点：筒体直径　出处：《石油学报(石油加工)》2017年04期

【摘要】：筒体直径是影响旋风分离器效率和压降的重要结构参数。以硅微粉为原料,在保证几何结构相似的基础上,对筒体直径分别为200、300、400mm的Stairmand型旋风分离器进行冷态对比实验,考察了不同情形下筒径对旋风分离器分离性能的影响。结果表明,旋风分离器按几何相似放大,筒径增大,在同一入口气速下,分离效率下降而压降升高;在同一处理气量下,分离效率和压降都下降。如将入口尺寸与处理气量固定,其它尺寸按几何相似放大,筒径增大则旋风分离器的分离效率增加、压降降低。进而又用几个较新的分离模型对实验进行了计算比较,发现模型计算结果与实验结果的趋势大体一致,基本上能预测筒径变化对旋风分离器分离效率与压降的影响趋势,但都不能定量计算筒径对其分离性能的影响。
[Abstract]:The diameter of cylinder is an important structural parameter affecting the efficiency and pressure drop of cyclone separator.Using silicon powder as raw material, on the basis of ensuring the similarity of geometric structure, the cold contrast experiment of Stairmand cyclone separator with cylinder diameter of 200300400mm was carried out, and the influence of tube diameter on the separation performance of cyclone separator was investigated under different conditions.The results show that the separation efficiency decreases and the pressure drop increases under the same inlet gas velocity, and the separation efficiency and pressure drop decrease at the same gas rate.If the inlet size is fixed with the treated gas quantity, the other dimensions are enlarged according to geometric similarity, and the cylinder diameter increases, the separation efficiency of the cyclone separator increases and the pressure drop decreases.Furthermore, several new separation models are used to calculate and compare the experimental results. It is found that the calculated results of the model are consistent with the experimental results, and the influence of the diameter variation on the separation efficiency and pressure drop of the cyclone separator can be predicted.However, the influence of cylinder diameter on its separation performance can not be calculated quantitatively.
【作者单位】：中国石油大学化学工程学院过程流体过滤与分离北京市重点实验室;
【基金】：国家自然科学基金(21276274) 国家重点基础研究发展计划“973”项目(2014CB744304)资助
【分类号】：TQ051.8

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