几内亚苏阿皮蒂水电站技术供水温度与供水方式

Design of the Technical Water Supply System in Souapiti Hydropwoer Station of Guinea

针对苏阿皮蒂电站技术供水温度与方式,统计分析当地气候特征,参考流域已运行电站的实测参数和运用效果,对比分析了压力钢管自流减压供水和二次循环冷却供水方式的优缺点、适用必要条件。结合流域水质、水温、电站工作水头等因素,从实际出发,论证了取消原二次循环冷却供水方式的原因,分析了采取28℃设计冷却水温、两套相对独立的压力钢管自流减压供水方式的可行性,并增加四通阀定期切换水流方向的充分、必要性。

Design of the technical water supply system in Souapiti Hydropwer Station of Guinea is introduced.Considering the local climate conditions, and the measured parameters and practical operation performance of the existing power stations in the river basin, two different technical water supply modes are compared, including the self-flow decompression water supply mode with steel pipeline and the secondary-cycled cooling water supply mode.The reasons for cancelling the originally required secondary-cycled cooling water supply mode are presented.Then, the feasibility of adopting 28℃ cooling water temperature and two sets of relatively independent self-flow decompression water supply modes with steel pipeline is analyzed.Also, it is necessary to add four-way valves and change the flow direction periodically.