【摘要】 在简要介绍环形射流泵工作原理的基础上,定义了环形射流泵试验常用的一些技术参数;通过试验所得到的试验数据及引入相关的技术参数绘制了环形射流泵的特性曲线。根据环形射流泵的特性曲线,论述了临界空化数σc、收敛角α、吸入头的面积A1、喉管长径比L2/D2和射流涡旋强度J对环形射流泵空化性能的影响;通过分析这些影响,得到了一些有用的结论和公式,从而提出改善环形射流泵空化特性的一些建议,为高效环形射流泵的设计提供了理论依据。更多还原

【Abstract】 On the basis of brief introduction of the operating principle of annular jet pump,some common technical parameters used in the experiment are defined.The performance curve of annular jet pump is drawn based on the experimental data and some correlative technical parameters.According to the performance curve,the influence of critical cavitation factor σc,convergent angleα,area of suction nozzle A1,ratio of length to diameter of throat L2/D2 and jet vortex intensity J on the cavitation performance of annular jet pump is discussed.By analyzing the influence,some useful conclusions and formulas are obtained and suggestions about improving the cavitation performance of the jet pump are put forward,thus providing the theoretical basis for designing high-efficiency annular jet pump.更多还原