水电站拦污栅水头损失和清污机械研究现状和趋势

Present situation and trends of research on head loss at the trash racks of hydropower stations and raking equipment

分析了水电站拦污栅水头损失的机理 ,拦污栅水头损失与发电水头的关系 ;介绍了国内外水电站清污机械的种类、特点及应用情况。建议开展对已建大中型水电站拦污栅锈蚀、堵塞状况的调查研究 ,为清污机的制造和适时清污提供水力学依据 。

This paper analyses the principle of head loss at the trash racks of hydropower stations and the relationship of head loss at the trash racks and productive head,introduces the categories,characteristics and application of raking equipment used in China and abroad.In addition,the paper poses a suggestion that a survey should be launched concerning corrosion and blockage of trash racks of large and medium size water power stations,in order to offer hydraulic data for the manufacturing and real time cleaning of raking equipment and garentee the safety and high operation efficiency of hydroelectric stations.