堰顶掺气孔复氧能力的实验研究  

Experiment on Oxygen Recovery of Aeration Hole in Weir Top

作　　者：何文学[1] 李茶青[1] 

机构地区：[1]浙江水利水电专科学校,浙江杭州310018

出　　处：《浙江水利水电专科学校学报》2009年第4期100-102,共3页Journal of Zhejiang Water Conservancy and Hydropower College

基　　金：浙江省水利厅科研基金资助项目(RB0823)

摘　　要：借助水力学实验水槽,在流量、堰上水头、下游水深等水力条件保持不变的情况下,实测了同一温度、不同掺气孔开闭组合工况时的曲线堰上、下游断面溶解氧浓度值,并得到了表征复氧能力大小的相对复氧率,旨在探索曲线型实用堰堰顶掺气孔布设位置及其开、闭方式对复氧能力的影响,为进一步探索利用过水建筑物掺气复氧特性改善水环境的技术措施奠定了基础.The data of oxygen recovery ratio is obtained in the upper and the lower section of curvilinear weir with aeration holes shut or opened under the same temperature and the constant hydraulic conditions such as flow, hydraulic head, water depth based on laboratory flume. The location of aeration holes and the operation of hole shifts are tested to understand the influence of curvilinear practice weir upon oxygen recovery, which improves the technique research on water environment rebuilding through ＇the capacity of oxygen recovery in overflow buildings.

关 键 词：水环境修复 曲线型实用堰 复氧能力 

分 类 号：TV132.22[水利工程—水力学及河流动力学]