轴流转桨式水轮发电机组增容改造分析及应用

Capacity Expansion Renovation of an Axial Flow Kaplan Hydro-turbine Generator Unit

针对某电厂轴流转桨式机组增容改造,通过对其必要性、方案和范围、改造前后状态等分析表明,经优化水轮机选型、改善汛期低水头段机组出力和效率等措施,既提升了机组机械性能的稳定性,又增加了电厂预期发电量,经济效益显著。

The capacity expansion renovation of an axial flow Kaplan hydro-turbine generator unit is introduced,including the necessity,detailed scheme and scope of the renovation.Comparison of the states of the unit before and after the renovation shows that the measures of the optimized type selection of the hydro-turbine and improvement of the output and efficiency of the unit in the low head section in flood season not only improve the stability of the mechanical performance of the unit,but also increase the expected power generation of the power plant with remarkable economic benefits.