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为了研究航空发动机滑油系统中的关键部件动压式油气分离器的分离性能,采用气泡轨迹模型研究了滑油流量、进口处滑油的切向速度和分离器直径对滑油区内气泡分离效率的影响。结果表明:增大进口处滑油的切向速度能够提高分离性能;当滑油流量在420L/min变化时,筒径为15mm的分离器的分离性能最佳;滑油沿分离器筒体方向的平均轴向速度小于0.35m/s时,分离器的分离效率随滑油流量增大而增大;滑油沿分离器筒体方向的平均轴向速度大于0.35m/s时,分离器的分离效率随滑油流量增大而减小。
In order to study the separation performance of the dynamic pressure type oil-gas separator, which is the key component in the aeroengine oil system, the bubble flow model was used to study the flow rate of the oil, the tangential velocity of the oil inlet and the diameter of the separator, The impact of efficiency. The results show that increasing the tangential velocity at the inlet can improve the separation performance. When the oil flow rate is 420L / min, the separator with the cylinder diameter of 15mm has the best separation performance. When the average axial velocity of the separator is less than 0.35m / s, the separation efficiency of the separator increases with the increase of the oil flow rate; when the average axial velocity of the lubricant in the direction of the separator cylinder is more than 0.35m / s, Separation efficiency decreases with increasing oil flow.