长距离有压输水管道排气阀过滤结构最优模拟与试验研究  

Simulation and Experimental Study on Filter Structure Optimization of Air Exhaust Valve in Long-distance Pressurized Water Pipeline

作　　者：曲涛 毕莹 宋世亮 许国栋 宋阳[3] 高金花[2] QU Tao;BI Ying;SONG Shi-liang;XU Guo-dong;SONG Yang;GAO Jin-hua(Yantai Branch Center,Water Transfer Project Operation and Maintenance Center,Yantai 264000,Shangdong Province,China;School of Hydraulic and Environmental Engineering,Changchun Institute of Technology,Changchun 130012,China;Jilin Provincial Institute of Water Conservancy Science,Changchun 130000,China)

机构地区：[1]山东省调水工程运行维护中心烟台分中心,山东烟台264000 [2]长春工程学院,长春130012 [3]吉林省水利科学研究院,长春130000

出　　处：《节水灌溉》2022年第6期100-106,共7页Water Saving Irrigation

基　　金：国家重点研发计划专题项目“长白山区水资源适应性调整研究”(2019YFC0409104-4);吉林省科技发展计划项目“基于盐碱土生态固化技术的渠道结构优化及应用技术研究”(20210202010NC)。

摘　　要：引黄调水工程是南水北调工程的东线工程中重要组成部分,是山东省境内一项将黄河水引向青岛、威海、烟台等地的水利工程。由于引水水源中生物复杂,泡沫等柔性杂质常使排气阀锈蚀堵塞,造成长距离输水工程无法正常运行。采用数值模拟与试验观测两种方法相结合,利用Fluent通过模拟过滤孔经、滤层厚度以及过滤网型,分析过滤装置的处理效果,通过物模试验进行验证,选择最优过滤结构。结果表明:当过滤装置的过滤孔径为10 mm,滤层厚度为5 mm,过滤网型为弧形式过滤网时,过滤效果为100%,堵塞程度为19%,过滤时装置内部最大压强为0.9 MPa,物模试验与数值模拟结果一致,具有最佳的处理效果。The Yellow River water diversion project is an important part of the East Route of the South-to-North Water Diversion Project. It is a water conservancy project in Shandong Province to divert the Yellow River water to Qingdao, Weihai, Yantai and other places. Because of the complexity of the source water, the flexible impurities such as foam often make the exhaust valve corroded and blocked, resulting in long distance water delivery projects can not run normally. In this paper, two methods of numerical simulation and experimental observation were combined. The Fluent software was used to simulate the filter hole meridian, filter layer thickness and filter mesh type to analyze the treatment effect of the filter device. The simulation results were verified by physical model test, and the optimal filter structure was selected.The results show that when the filter aperture is 10 mm, the filter layer thickness is 5 mm, and the filter type is arc filter, the filtering effect is100%, the blockage degree is 19%, and the maximum pressure inside the filter is 0.9 MPa. The results of physical model test are consistent with those of numerical simulation, and the treatment effect is the best.

关 键 词：引黄调水工程 长距离有压输水 过滤装置 气液两相流 数值模拟 

分 类 号：S273.2[农业科学—农业水土工程] TV134.1[农业科学—农业工程]