In order to meet the requirements of aluminum tapping in large-amperage electrolytic cells and reduce heat dissipation,it is necessary to im-prove the vacuum degree of ejector.This paper designs the internal structure of ejector with reference to the latest theoretical research results and empirical data.According to the principle of reducing kinetic energy loss and improving vacuum degree,the method of adjusting three main parameters,namely compressed air pressure,the distance from nozzle to the shrinking section and nozzle diameter,is put forward.The ejector designed according to these op-timum parameters has been tested by experiments,and the vacuum degree reaches-0.068 MPa at the inlet compressed air pressure of 0.65 MPa.
关键词
引射器/真空度/动能损失/喷嘴/混合段
Key words
ejector/vacuum degree/kinetic energy losses/nozzle/mixing section
维普
万方数据