隔水幕墙在水电站低温水治理中的应用

Application of Water Retaining Curtain Wall to Solve the Problem Caused by Released Water Low Temperature for Hydroelectric Stations

已建调节性能好的水库普遍存在下泄低温水问题,影响下游生态环境。传统治理措施需大幅降低水库水位或放空水库以修建分层取水建筑物,影响电站正常发电。隔水幕墙取水是改善电站下泄低温水的新措施,不仅适用于已建水库工程,也适用于拟建水库工程。通过介绍其工作原理,并对隔水幕墙的工程应用效果进行数值分析,证明隔水幕墙取水技术能够有效改善下泄水温,可为我国今后类似水电工程低温水治理提供借鉴。

The problem caused by the released water low temperature was ubiquitous in large existing reservoirs,and had impact on downstream ecological environment. The traditional control measures were dramatically lowering the water level or emptying the reservoir in order to build water intake structure,but these measures were not conducive for the power plant to generate electricity. This paper put forward a new measure of water retaining curtain wall to solve the problem caused by the released water low temperature for the existing hydroelectric stations. This curtain wall applies not only to the existing reservoirs,but also to the unbuilt reservoirs. By introducing its operational principle and implementing numerical analysis,it demonstrated that the application of water retaining curtain wall can effectively improve the temperature of the released water. It can provide a reference for similar hydropower projects in the future.