The dual function demands to aeration devices for oxidation ditch are clarified and the mechanism of both stirring and flow driving of self primingjet aerator are described.
阐明了氧化沟对曝气设备双重功能的要求； 论述了自吸式射流曝气器发挥搅拌推流作用的机理；
2
When the pump starts working, the self-priming process can be achieved, and the valve of water-ejecting will be shut off automatically to stop the working of jet flow system simultaneously.
泵运转时，不仅可以完成自吸过程，而且可以将自循环射流器上的阀门关闭，射流器同时停止工作。
3
The air-jet exhauster is a compressed air-operated device for pump priming, provided that the pump has no foot valve. Water is induced into the pump by vacuum created by the exhauster.