不同导叶参数对箱涵式轴流泵装置水力性能的影响  

Influence of different guide vane parameters on hydraulic performance of box culvert axial-flow pump

作　　者：王欣宇 翟林鹏 汤方平[1] 石丽建 孙壮壮 张文鹏 刘海宇 WANG Xinyu;ZHAI Linpeng;TANG Fangping;SHI Lijian;SUN Zhuangzhuang;ZHANG Wenpeng;LIU Haiyu(College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225000, China;Jiangsu Rural Water Conservancy Technology Development Center, Nanjing, Jiangsu 210000, China)

机构地区：[1]扬州大学水利科学与工程学院,江苏扬州225000 [2]江苏省农村水利科技发展中心,江苏南京210000

出　　处：《排灌机械工程学报》2022年第5期440-446,共7页Journal of Drainage and Irrigation Machinery Engineering

基　　金：江苏省自然科学基金资助项目(BK20190914);江苏省高校自然科学研究项目(19KJB570002);中国博士后科学基金面上资助项目(2019M661946);扬州市自然科学基金资助项目(YZ2018103);江苏省水利科技项目(2017031)。

摘　　要：为了研究不同导叶参数对箱涵式轴流泵装置水力性能的影响,采用正交设计的方法,选取导叶叶片数、相对位置及扫掠角作为设计因素,每个因素选取3个水平进行组合,应用数值模拟方法研究3个因素对泵装置效率、出水流道轴向均匀度、导叶体水力损失及出口处平均涡角的影响规律,最终综合确定最优的设计方案.研究结果表明:如果只改变导叶的参数,导叶叶片数对导叶出口处的平均涡角和出水流道轴向均匀度影响较大;导叶相对位置在对泵装置的效率和导叶体水力损失影响因素中占主导地位;随着导叶扫掠角增大,泵装置效率、出水流道轴向均匀度、导叶体水力损失先增大后减小,平均涡角影响较小;对比数值计算和模型试验的结果,在设计工况附近效率基本吻合,扬程在误差允许范围内.研究结果可为箱涵式轴流泵装置优化设计提供一定的理论依据.In order to study the influence of different guide vane parameters on the hydraulic perfor-mance of box culvert axial-flow pumps,the orthogonal design method was adopted,and the number,relative positions and sweep angles of guide vanes were selected as design factors.Three levels of factors were selected for combination,and numerical simulation was used to study the influence of the above factors on the pump device efficiency,the axial uniformity of the outlet flow channel,the hydraulic loss of the guide vane body and the average vortex angle at the outlet,and finally the optimal design scheme was determined comprehensively.The results show that when only the parameters of the guide vane are changed,the number of guide vanes has a greater influence on the average vortex angle at the outlet of the guide vane and the axial uniformity of the outlet flow channel.The relative position of the guide vane plays a dominant role in the influence of the efficiency of the pump device and the hydraulic loss of the guide vane body.With the increase of the sweep angle of the guide vane,the pump device efficiency,the axial uniformity of the outlet flow channel,and the hydraulic loss of the guide vane first increase and then decrease,but the average vortex angle is less affected.Comparing the results of numerical analysis and model test,the efficiency is basically consistent with the design conditions,and the head is within the allowable range of error range.The research results provide a theoretical basis for the optimal design of box culvert axial-pump.

关 键 词：箱涵式轴流泵装置 水力性能 导叶参数 正交设计 水力损失 

分 类 号：S277.9[农业科学—农业水土工程] TH311[农业科学—农业工程]