潮流区电厂取排水口泥沙试验方法及输运规律研究

Physical Model Study Method on Sediment Transportation for Intake and Outfall of Power Plants in Tidal Areas

为研究潮流区泥沙运动对电厂冷却水取排水影响,提供电厂取排水口防沙设计依据,基于潮流物理模型及泥沙模型相似关键条件,结合程序控制生潮系统,构建物理模型对电厂取排水进行泥沙试验研究。试验研究了在典型潮流、典型洪水及频率洪水3种工况下,某电厂取排水口附近水域及床面泥沙运动规律,分析泥沙运动对电厂取排水的影响,并依此对电厂取排水口形式进行优化。成果及方法可为在潮流区复杂流态下泥沙规律研究提供参考。

This paper presents an experimental research method for sediment transportation around intake and outfall of power plants in tidal areas and then provides a reference for sand-protecting design of power plants. Based on crucial conditions of similarity theory for tide sediment movable bed physical model, program controlled tide generating system is used, the sediment movable bed model is established. Under typical tide and flood operating models,a test on intake and outfall of a plant in tidal area is carried out, and the sediment influent to intake and outfall are analyzed. Based on the above works, optimal structure of intake and outfall is obtained. The test coutd provide a reference for sediment transportation in intake and outfall of power plants in tide areas.