叶片式气液混输泵扬程的一种估算方法

Estimation of hoisting height of vane gas liquid pump.

根据一维控制体模型， 在合理假设的基础上， 考虑泵的几何参数、含气率的变化和两相速度滑差， 推导出叶片式气液两相混输泵扬程的计算公式。将该公式计算的扬程与混输泵实际测量的扬程进行了对比分析， 结果说明， 随着泵入口含气率的增加， 泵的计算扬程与实测扬程总体变化趋势是减小， 且计算值与实测值符合情况较好。这说明推导的扬程计算公式可以用来估算混输泵的实际扬程， 具有一定的实用价值。

According the one dimensional control body model, based on rational assumption, and in consideration of the variation of pump geometric dimensions and gas void fraction and velocity slip between two phases, the equation for calculating the hoisting height of vane gas liquid pump is derived. The value of hoisting height calculated is compared with that measured, and the result shows the two values have little difference, this means the equation can be used to estimated the actual hoisting height of the pump.