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为了探索整体式进气粒子分离器(IPS)分离效率的变化规律,针对两种具有不同型面曲率的整体式粒子分离器的三维结构模型开展试验,重点研究了主流路流量、扫气比(SCR)、进口马赫数、进口砂粒浓度和分离器间距对粒子分离器性能的影响规律。实验结果表明:(1)对于不同粒径砂粒,两种模型分离效率均出现随着主流路流量增大而减小的趋势,其中在主流路流量相同的情况下,型面变化平缓的模型分离性能要优于型面变化剧烈的模型;(2)两种整体式粒子分离器模型的分离效率均随扫气比的增大呈现先增大后减小的变化,且这种规律与砂粒粒径无关;(3)随着进口马赫数的增大,两种整体式粒子分离器模型分离效率均仅出现小幅度减小,但在同一进口马赫数下,两种模型分离效率差异显著,最大达到6.54%;(4)采用C级砂时,可以认为粒子浓度对粒子分离器的分离效率没有影响;(5)当分离器轴向间距减小或径向偏离轴线间距减小时,粒子分离器模型的分离效率将出现不同幅度增大。
In order to explore the variation law of integral separation particle separator (IPS) separation efficiency, two kinds of three-dimensional structural model of integral particle separator with different profile curvature were tested. The main flow, scavenging ratio SCR), Mach number of inlet, influence of inlet grit concentration and separator spacing on particle separator performance. The experimental results show that: (1) The separation efficiency of the two models tends to decrease with the increase of the main flow rate for sand particles with different particle sizes. In the case of the same mainstream flow rate, the model with gradual change of profile separation (2) The separation efficiencies of the two monolithic particle separators models increase first and then decrease with the increase of the scavenging ratio, (3) With the increase of inlet Mach number, the separation efficiencies of the two kinds of integral particle separators decrease only slightly, but under the same inlet Mach number, the separation efficiencies of the two models are significantly different, the maximum (5) When the separator axial spacing decreases or the radial deviation from the axis spacing decreases, the particle separator The separation efficiency of the model will show different amplitude increases.