混输泵动静叶间距对混输泵性能的影响

摘要

以自主研制的第3代YQH-100气液混输泵为研究对象,利用FLUENT软件中的多体坐标系、标准κ-ε模型、Mixture模型及SIMPLE算法,对混输泵动静叶间距分别为0.05D,0.075D,0.1D,气体体积含气率(％)分别为0,10,20,30,40,50,60,70,80,90的工况下进行三维流场数值模拟,并绘制了混输泵相对扬程、效率随含气率变化的曲线.结果表明,动静叶间距对混输泵性能影响不大,当混输泵动静叶间隙为0.1D时混输泵性能稍最优于其他两种情况.%The third generation YQH-100 multiphase pump independently developed is taken as an object. The gas-liquid mixing pump is researched and analyzed when the spacing between movable and static vanes is 0. 05D.0. 075D,0. ID and ten kinds of volume of gas rate is 0,10,20,30,40,50,60,70,80,90. Multi-body coordinate system,standard k-e model,mixture model and simple algorithm are adopted in FLUENT software. The three-dimensional numerical simulation is conducted, and the efficiency curve relative to head multiphase pump with the gas rate is plotted. The results show that the spacing between movable and static vanes has little effect on the pump,when the spacing between movable and static vanes is 0. ID, the performance of multiphase pump is much better than other two cases.