摘要
为提升过滤器的综合过滤性能、保障微灌系统的高效运转,搭建了微压过滤系统开展过滤性能试验.基于多目标均衡优化的思想方法,探究滤网结构和悬浮液杂质对微压过滤下过滤性能的综合影响.该方法以水头损失率、过滤效率和滤饼再生速率为评价指标,应用响应面法建立各评价指标目标模型,结合主客观组合赋权法与基于TOPSIS的Pareto前沿法实现多指标综合性能评价与滤网结构类型寻优.结果表明:滤网分形维数与微压过滤系统工作过程产生了较强关联性,可作为后续试验变量;评价指标对过滤性能影响排序由大到小为滤饼再生速率、水头损失率、过滤效率,所得目标函数模型均具有较高的可靠性;得到了不同悬浮液杂质条件下的滤网选型参考,滤网选型推荐分形维数较小的楔形滤网为综合最优滤网.研究结果可为微压网式过滤器的滤网选型和工程应用提供均衡决策参考.
To improve the comprehensive filtration performance and ensure the efficient operation of micro-irrigation systems,a micro-pressure filtration platform was established for filtration performance tests.Based on multi-objective balanced optimization approach,the combined effects of filter mesh structure and suspended impurities on filtration performance under micro-pressure conditions was explored.Evaluation criteria included head loss rate,filtration efficiency,and cake regeneration rate.Response surface methodology was employed to construct objective models for each index.A hybrid weighting method,integrating subjective and objective approaches,together with the TOPSIS-based Pareto frontier method,enabled comprehensive performance evaluation and structural optimization of filter meshes.The results reveal a strong correlation between the fractal dimension of the mesh and filtration system performance,indicating its potential as a variable for subsequent experiments.The eva-luation indicators are ranked in descending order as follows:cake regeneration rate,head loss rate,and filtration efficiency.The obtained objective function models demonstrate high reliability.Reference schemes for filter mesh selection under various impurity conditions in the suspension are established.Wedge-shaped meshes with lower fractal dimensions are recommended as the overall optimal choice,offering superior performance in terms of both cleaning effectiveness and hydraulic behavior.These findings provide a valuable decision-making reference for the selection and engineering application of micro-pressure mesh filters.
作者
陆辰
刘贞姬
姜波
龙洋娟
雷辰宇
LU Chen;LIU Zhenji;JIANG Bo;LONG Yangjuan;LEI Chenyu(College of Water Conservancy&Architectural Engineering,Shihezi University,Shihezi,Xinjiang 832003,China;Key Laboratory of Cold and Arid Regions Eco-hydraulic Engineering of Xinjiang Production&Construction Corps,Shihezi University,Shihezi,Xinjiang 832003,China;Shihezi Water Conservancy Project Management and Service Center,the 8th Division of Xinjiang Production and Construction Corps,Shihezi,Xinjiang 832000,China)
出处
《排灌机械工程学报》
北大核心
2025年第11期1176-1188,共13页
Journal of Drainage and Irrigation Machinery Engineering
基金
国家自然科学基金资助项目(12162030)。
关键词
微压网式过滤器
悬浮液杂质种类
响应面试验
综合评价法
滤网选型
micro-pressure mesh filter
impurity types in the suspension
response surface methodology
comprehensive evaluation method
filter screen selection
