摘要
为减少排沙漏斗的漏斗室淤沙量,提出一种在漏斗室底板布置环形导片的改进方案,探究环形导片布置位置及数量对排沙漏斗的排沙耗水率、漏斗室淤沙量以及泥沙截除率的影响。试验结果表明:在排沙漏斗锥底板布置一定数量的导流片可增大锥底板处的旋转流速,经过对G1、G2、G3(不同导流片布置下的排沙耗水率相较于传统排沙漏斗的变化率G1、不同导片布置下的底板泥沙淤积量相较于传统排沙漏斗的变化率G2、不同导片布置下的泥沙截除率相较于传统排沙漏斗的变化率G3)三个指标的评价比选,得出在锥底板最外环位置处布置三层导片可使得漏斗式内的淤积量最小。该方案与传统排沙漏斗相比排沙耗水率降低了4.56%、锥底板泥沙淤积量降低了10.24%、泥沙截除率提高了0.65%。研究结果可为导片在排沙漏斗工程中的导片优化设计提供依据。
In order to reduce the amount of silt in the funnel chamber of the sand discharge funnel,an improved scheme of arranging annular guide plates on the bottom plate of the funnel chamber is proposed.The effects of the arrangement position and number of annular guide plates on the water consumption rate of sediment discharge,the amount of silt in the funnel chamber and the sediment interception rate are investigated.The experimental results show that the arrangement of a certain number of guide plates on the bottom plate of the cone of the sand discharge funnel can increase the rotational velocity at the bottom plate of the cone.Through the evaluation and comparison of three indexes of G1,G2 and G3(the change rate of sediment discharge water consumption rate under different guide vane arrangement compared with the traditional sediment discharge funnel G1,the change rate of sediment deposition under different guide vane arrangement compared with the traditional sediment discharge funnel G2,and the sediment interception rate under different guide vane arrangement compared with the traditional sediment discharge funnel G3),it is concluded that the arrangement of three layers of guide vanes at the outermost ring position of the cone bottom plate can minimize the deposition amount in the funnel type.Compared with the traditional desilting funnel,the desilting water consumption rate of the scheme is reduced by 4.56%,the sediment deposition of the cone bottom plate is reduced by 10.24%,and the sediment removal rate is increased by 0.65%.The research results can provide a basis for the optimal design of the guide vane in the desilting funnel project.
作者
刘文昊
史家泽
王元
张小莹
王振恒
段亚涛
赵乔乔
Liu Wenhao;Shi Jiaze;Wang Yuan;Zhang Xiaoying;Wang Zhenheng;Duan Yatao;Zhao Qiaoqiao(College of Hydraulic and Civil Engineering,Xinjiang Agricultural University,Urumqi 830052,Xinjiang;Xinjang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention,Urumqi 830052,Xinjiang)
出处
《陕西水利》
2024年第11期1-5,共5页
Shaanxi Water Resources
基金
新疆农业大学大学生创新创业训练计划项目
新疆水利工程安全与水灾害防止自治区重点实验室2022年开放课题(ZDSYS-JS-2022-01)。
关键词
排沙漏斗
导片
底板淤沙量
排沙耗水率
泥沙截除率
Sand funnel
guide plate
floor silting amount
water consumption rate of sediment discharge
sediment removal rate
