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在原有旋流技术研究实验装置基础上, 增加一套脉动信号发生系统, 开展了脉动流条件下气体对水力旋流器分离特性影响的实验研究。研究结果表明: (1) 在一定条件下, 脉动流对提高水力旋流器的分离效率是有利的; (2) 在雷诺数Re=17 000、旋数S=9、脉动幅值比RQ=4%的条件下, 气液比Rgl=1左右时溢流颗粒相对净化率达到最大; (3) 在脉动流条件下, 气体的存在对水力旋流器分离效果的影响相对于稳定流要弱一些; (4) 随着含气量的上升, 流量脉动幅值增加比逐渐加大, 其变化趋势大体呈抛物线形。
Based on the original experimental device of cyclone technology, a set of pulsation signal generation system is added to carry out experimental research on the influence of gas on the separation characteristics of hydrocyclones under pulsating flow conditions. The results show that: (1) Under certain conditions, pulsating flow is beneficial to improve the hydrocyclone separation efficiency; (2) Reynolds number Re = 17 000, swirl number S = 9, pulsation amplitude ratio RQ = 4%, the relative purification rate of overflow particles reaches the maximum when the gas-liquid ratio is about Rgl = 1; (3) Under the condition of pulsating flow, the influence of gas on the hydrocyclone separation effect is weaker than that of the steady flow Some; (4) With the increase of gas content, the increasing ratio of flow pulse amplitude gradually increases, and its changing trend is generally parabolic.