白云峡水电站增效扩容水能复核及技改方案研究

为准确掌握白云峡水电站增效扩容潜力,确保技改方案具有较高安全可靠性和节能经济性,采用参证站径流资料分析与发电量反算引用流量相互验证的设计思路,对电站扩容潜力进行了水能复核。考虑 “引红济石”调水流量和小水电技改技术要求,合理确定了与工程实际相匹配的最佳装机容量、方案和机组型号。研究表明：通过鹦鸽水文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,可获得反映电站水能指标的准确数据。进行机型优化比选与合理技术改造,可确保机组长期运行在高效工况区,增加出力和防止空蚀,在增效扩容的同时实现了节能降耗。

Hydropower-checking and technical transformation scheme for efficiency-improving and capacity-expanding engineering of Baiyunxia Hydropower Station

In order to accurately master the efficiency-improving and capacity-expanding potential of Baiyunxia hydropower station, and ensure that the technical transformation scheme has high safety, reliability , and economics of energy saving, based on the design ideas of mutual verification between analyzing the runoff data of reference station and back-calculation of the power generation, the hydropower-checking of the power station for mining the potential expansion has been done. The optimal installed capacity, scheme and turbine type of Baiyunxia hydropower station have been confirmed after considering the water flow of "Hongyanhe-to-Shitouhe Water Transfer Project" and reformed technical requirement of small hydropower. The research results show that through the calculation and back-calculation of Yingge station runoff data in Shanchahe and statistical data of years of running power generation, the accurate data of water energy index which can reflect the operation characteristic of power station has been obtained. And the optimizing selection and reasonable technological reform of the hydro-turbine can ensure the generator unit long-term operating in high efficiency operating area. After feasible technical reform the design objective of increasing the output and preventing the cavitations has been achieved, the power station can realize the aims of energy conservation and consumption reduction at the same time of efficiency-improving and capacity-expanding.