Abstract: At present, there had been no application case of automatic hoisting trashrack used in stations at which water head is high and water level changes in wide range. Some special structures have been used in trashrack design in Hunanzhen Reservoir such as wire cable slip ring, straight track in equidistance dip and stiff pins connection interval,which make it come true to lift automatically as water level goes up and down at normal level of 205-229m and have got good effect.?

摘要： 目前我国高水头、水库水位变幅大的水电站尚未有自动升降拦污排的应用实例，湖南镇水库拦污排采用钢丝绳滑环机构、等距异面倾斜直线轨道、节间刚性插销联接等独特结构，成功实现在正常库水位205~229m 内拦污排随库水位自动升降，拦污效果理想。