Page 222 - 《水资源与水工程学报》2022年第3期
P. 222
!33 " ! 3 # & ' ( ) & * + , - Vol.33No.3
2022 $ 6 % JournalofWaterResources&WaterEngineering Jun.,2022
DOI:10.11705/j.issn.1672-643X.2022.03.28
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8IBJK:TV93;S275.6 LMNOP:A LQRK:1672643X(2022)03021807
Experimentalstudyonperformanceofdiscfilterwith
discreteflowchannelstructure
WANGQin 1,2,3 ,XUXin 1,2,3 ,WANGZhenhua 1,2,3 ,ZHANGJinzhu 1,2,3
(1.CollegeofWaterandArchitecturalEngineering,ShiheziUniversity,Shihezi832000,China;2.KeyLaboratoryofModernWater
SavingIrrigationCorps ,Shihezi832000,China;3.CorpsInstituteofIndustry,Shihezi832000,China)
Abstract:Discflowchannelstructureisanimportantfactoraffectingtheperformanceofdiscfilters.To
improvethehydraulicpropertyandworkingperformanceofthediscfilters ,anewtypeofdiscfilterwith
adiscretechannelstructurewasdesignedanditsperformancewasthencomparedwiththatoftheconven
tionallineardiscfilter.Theheadloss ,sedimentinterceptionrate,sedimentremovalrate,sedimentparti
clesizedistributionofthesetwotypesoffiltersweremonitoredvialaboratoryphysicalmodeltest.There
sultsshowedthatundertheconditionofclearwater ,themaximumheadlossofthenoveldiscfilterand
conventionaldiscfilterwas2.34mand3.46mrespectively,theformerwas32.3% ~50.0% lowerthan
thelatter.Undertheconditionofsandywater ,theperformanceofsedimentinterceptionofthesetwo
typesoffilterswerenegativelycorrelatedwiththeflowrater,i.e.,thelargertheflowrate,thelessthe
sedimentinterceptionofthefilters ;theaveragesedimentremovalrateofthenovelfilterwas18.94%,
whereasthatoftheconventionalfilterwas15.15%.Furthermorethenoveldiscfilterperformedbetterat
finegrainedsedimentinterceptionwithalongereffectivefilteringcycleandlowerpeakwaterheadloss.
Overall ,thehydraulicpropertyandfiltrationperformanceofthediscretediscfilterarebettercompared
withtheconventionallineardiscfilter.
Keywords:dripirrigation;discfilter;discreteflowchannel;waterheadloss;filtrationperformance
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