农村小水电站增效扩容水能复核及技术改造方案

Research on Hydropower-Checking and Technical Transformation Scheme for Efficiency-Improving and Capacity-Expanding Engineering of Rural Hydropower Station

为准确掌握农村小水电增效扩容潜力,优化改造后机组运行组合,采用有径流资料的水力发电要素关联性函数,联合发电量反算引用流量,对峡口水电站水能进行详细复核,并确定与工程相匹配的装机容量和机型。设计应用表明,通过山岔河鹦鸽站径流资料及电站多年运行发电量统计数据的核算与反算,可获得能真实反映电站水能指标的准确数据,确保增效扩容改造设计方案具有较高技术可行性和经济优越性。通过合理改造,峡口水电站水能利用率及转换效率得到全面提高,弃水量减小,运行能耗降低,在增效扩容的同时实现了节能降耗的目的。

In order to accurately master the efficiency-improving and capacity-expanding potential of rural hydropower station and optimize the transformed unit operation combination,based on correlation function of hydraulic factors with runoff data and combined the mean annual power generation to back calculate the runoff,the hydropower-checking,installed capacity and turbine type of Xiakou Hydropower Station has been confirmed. Designing application shows that through the calculation and back-calculation of Yingge Station runoff data of Shancha River and statistical data of power station＇s years of running power generation,the accurate data of water energy index which can truly reflect the operation characteristic of power station and ensured the designing scheme with technical feasibility and economy has been obtained. After reasonable technological transformation,the water utilization and conversion efficiency have been improved,the abandoned water and operating energy consumption have been reduced. The station can realize the aims of energy conservation and consumption reduction at the same time of efficiency-improving and capacity-expanding and it has no need for additional measures.