气固喷射器的理论和实验研究

Thoeriotical and experimental studies on gas—solid ejectors

根据气固两相流流体力学推导了计算公式,并通过改变其几何参数和操作参数,对它的性能进行了实验研究,给出它的特性曲线和最佳工况,特别是研究了高背压情况下的影响。结果证明:正确选择气固喷射器的几何参数和操作参数,就能大大改善它的性能。

The calculation formula is conducted according to gas—solid 2—phase hydromechanics and the experiments on performances of ejectors are carried out by changing their geometrical and operation parameters. The characteristic curve and optimum working condition are described. Especially the influence of high backpresure is studied. It is proved by the results that the performances of ejectors can be dramatically improved by properly selecting the geometrical and operation parameters of gas—solid ejectors.