水力机械的气蚀和泥沙磨损是影响水电站高效、安全和经济运行的关键问题之一,尤其建造在多泥沙河流上的水电站,其磨蚀破坏更为严重。水力机械遭受磨蚀破坏后,其运行效率下降,使用寿命缩短,检修费用增加,因此,对水力机械磨蚀破坏的防护措施进行试验研究很有必要。 Cavitation and sediment loss of hydraulic machinery are one of the key issues that affect the efficiency, safety and economy of hydropower stations. In particular, hydropower stations built on multi-silt rivers have more severe erosion damage. After the abrasion damage of hydraulic machinery, its operating efficiency is reduced, the service life is shortened, and the maintenance cost is increased. Therefore, it is necessary to conduct experimental research on the protective measures against the abrasion of hydraulic machinery.