具有灌排结合的轴流泵站,一般是用节制闸来改变水的流向,达到抽灌或抽排两用的目的,这种形式不仅占地大,投资多,而且水头损失也比较大,能耗增加。另一种是采用双向流道的泵站来改变水的流向,但试验证实装置效率一般比单向流道泵站低2～ Irrigation and drainage with a combination of axial pumping station, the general is to use a control gate to change the water flow to achieve the purpose of pumping or pumping two purposes, this form is not only large, more investment, but also head loss is relatively large, Increased energy consumption. The other is the use of two-way flow of pumping stations to change the flow of water, but the test proved that the efficiency of the device is generally lower than the unidirectional runner pumping station 2 ~