In this paper, two structures, an aerated baffle on one side wall of the overflow weir and a booster baffle at the intake of the swirling device, are developed to eliminate cavitation.

• 为了防止发生空蚀,在溢流堰的一侧墙设掺气折流坎,产生旋涡气囊进入竖井,向升坎处补气,同时在起旋洞的进口设增压折流坎,缩短螺距,使旋转流经过升坎,在离心力的作用下消除负压。