电厂引水箱涵水力特性的试验研究——以福建可门电厂为例

Model Experiment on Hydraulic Characteristics of Diversion Culvert Box in Power Station Engineering——A Case Study of Fujian Kemen Power Station

结合福建可门发电厂冷却水取排水系统的工程实际,通过物理模型试验的方法,分析了不同工况下电厂取水口和前池间引水箱涵的管线阻力特性,以及水泵启停时前池水位变化规律。试验表明,同潮位下,水头损失随引水流量增大而增加;前池扩散段中间边墙高度降低1.5 m为宜。此研究为保证电厂在不同潮位下的经济和可靠运行提供了理论依据,同时对类似工程具有一定的参考价值。

Taking the construction of power station in Kemen,Fujian Province as example,a model experiment was conducted on duct resistance characteristics of diversion culvert box from intake water connection to pump room transition fore bay in power station in different operating modes,and the water level variation regularities of transition fore bay in transient start-up modes and transient turnoff modes of the water pump were investigated.The experiment showed that headloss increased with the augment of diversion discharge in the same tide level.It was suggested that the middle of cheek in the fore bay be better to reduce 1.5 m.The results can provide theoretical basis and references for the economical and credible operation of power station in different modes.