基于数值模拟的迷宫螺旋泵性能研究

应用Fluent软件对迷宫螺旋泵进行模拟分析,并对迷宫螺旋泵的性能和结构参数之间的关系进行定性分析。结果表明:迷宫螺旋泵扬程系数最大值随流量的增大而减小;螺旋角增大,流量范围明显下降,相同流量下的效率值相应增大,最大扬程系数的螺旋角大约为60;°径向间隙减小,流量范围有所减小,相同流量下的效率相应增大;螺纹棱宽增大,流量范围稍微下降,相同流量下的效率有所增大;螺纹槽宽减小,流量范围明显下降,相同流量下的效率有所增大;螺纹槽深减小,流量范围急剧减小,相同流量下的效率明显增大。

Analysis of Labyrinth Screw Pump Capability with Numerical Simulation

CFD software Fluent was applied to simulate the labyrinth screw pump,and the relation was analyzed between the capability and the structural parameters of the labyrinth screw pump.The analysis results show that the maximal value of the pump head coefficient declines when the flow rate increases;the range of flow rate declines obviously and the efficiency under same flow rate increases when the helix angle increases,and the maximal head coefficient is gotten with 60 degree helix angle;when the radial clearance reduces,the flow rate range declines too,and the efficiency under same flow rate enhances;when the width of thread ridge increases,the flow rate range declines little;and the efficiency under same flow rate enhances;when the thread groove width reduces,the flow rate range declines obviously,and the efficiency under same flow rate enhances;when thread depth reduces,the flow rate range declines rapidly,and the efficiency under same flow rate enhances obviously.