蒸发冷却技术在李家峡水电站水轮发电机组的应用

Application of evaporation cooling technique in generating units of Lijiaxia Hydropower Station

主要从设计、制造、安装、试验等一系列重要环节进行分析，论证了李家峡水电站大型水轮发电机组在保留有空冷基础，保持机组基本结构尺寸不变的情况下，初次在400MW水轮发电机组中进行蒸发冷却技术的可行性，并结合李家峡4＃机组近两年的运行情况，对蒸发冷却技术在水电站大型机组的设计与应用方面提出了一些设想。

Based on a series of analysis including design, manufacture, installation and test, it demonstrates that it is feasible to use the evaporation cooling technique for 400MW hydroturbine generating units under the condition of keeping the original size and air cooling equipment. In conjoint with the operation of No.4 generating unit, some suggestions for the application of the evaporation cooling technique in design and operation of large size generating unit of hydropower stations are put forward.