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永久水电站采用的是明槽定桨式水轮机,其水导瓦始终在水下运行,水轮机主轴与水导瓦磨损严重,究其原因是设计上不合理和涨水时河流泥沙太多所致。采取对水轮机轴领下轴径部分和水导瓦进行技术改造,提高了机组的设备利用率。图1幅。
The permanent hydropower station uses a fixed-slot fixed-blade turbine. The water-guiding tile is always under water and the main shaft and the water-guiding tile of the turbine are seriously worn out. The reason for this is that the design is irrational and the sediment in the river is too much . Adopting the technical transformation on the shaft diameter under the turbine shaft and the water guide tile to improve the equipment utilization rate of the unit. Figure 1 picture.