交变配流泵的旋转配流盘减振结构设计与参数影响研究

Structural Design and Parameter Influence Study on Vibration Damping of Rotating Distributor Disk for Alternating Flow Distribution Pump

为解决交变配流泵在连续旋转时柱塞与旋转配流盘的相对相位持续变化引起的输出流量脉动较大而导致的泵剧烈振动的问题,课题组设计了三角阻尼槽式的旋转配流盘减振结构。建立了减振结构过流面积模型,利用AMESim搭建了包含旋转配流盘减振结构的交变配流泵仿真模型;基于仿真模型,分析了三角阻尼槽的圆周角、宽度角和深度角等结构参数对流量脉动的影响规律,形成了交变配流泵的旋转配流盘减振结构优化设计方案。结果表明:在旋转配流盘过渡区域增设三角阻尼槽可以显著降低流量脉动,当三角阻尼槽结构参数为圆周角21°、宽度角100°、深度角16°时交变配流泵流量脉动率为31.4%。该研究为交变配流泵旋转配流盘的减振结构设计及其参数选取提供了参考。

In order to solve the problem of severe vibration of the pump due to the larger pulsations of the output flow caused by the continuous change of the relative phase between the plunger and the rotating disk,a triangular damping groove-type rotatingdistributor disk vibration damping structure was designed.The vibration damping structure overflow area model was established,and the simulation model of the alternating flow distribution pump containing the rotating distributor disk vibration damping structure was built by using AMESim.Based on the simulation model,the influence of structural parameters such as depth angle,width angle and circumferentialangle ofthe triangular groove on the flow pulsation was analyzed,and the optimal scheme of the rotating distributor disk vibration damping structure of the alternating flow distribution pump was formed.The results show that the addition of a triangular damping groove in the transition region of the rotating distributor disk can significantly reduce the flow pulsation,and the pulsation rate of the alternating flow distribution pumpis 31.4%with the triangular groove circumferential angle of 21°,the width angle of 100°,and the depth angle of 16°.The study provides a reference for the design and parameter selection of the vibration damping structure of the rotating distributor disk of the alternating flow distribution pump.