地埋式滴灌管的设计及安装

Sub-SurfaceDripIrrigationDesign,InstallationandMaintenanceGuideXF-SDIDriplinewithCopperShield™TechnologyRainBirdXF-SDIDriplineusesourleadingXFdriplineandaddspatent-pendingCopperShield™Technologytoprotecttheemitteragainstrootintrusioninsub-surfaceapplicationsSub-SurfaceDesign,Installation,MaintenanceRecommendationsSub-SurfaceDripIrrigationDesign,InstallationandMaintenanceGuide™ProductDescriptionRainBirdXF-SDIDriplinewithCopperShield™isareliableanddurabledripsolutionforturfgrassandbedapplications.Thetubingismadeofhighqualitypolyethylenethatisunmatchedintoughnessandflexibility.ThetubingcontainsemitterswithCopperShield™anon-toxicprotectionfromrootintrusionthatrequiresnoon-goingmaintenance.CopperShield™EmitterXF-SDISeriesDriplineEmitterinuseOnceinstalled,watercomesoutofthedriplineatdiscreetpoints,thenmovesinthesoilthroughcapillaryactiontospreadevenlyacrosstheentireareairrigatedbythegridofsubsurfacedripline.Thegridismadeupofburiedrowsofdriplinewithpre-installedemittersthatareeither12”,18”or24”apart.Theselectedspacingbetweenrowsandbetweenemittersdependsonthesoiltypeandisdiscussedonpages6and7.Designstepsfortrees,slopesandcurvededgesarefoundstartingonpage12.Supplyandflushmanifoldsareshownonpages15and17.Precipitationratesandruntimesareshownonpage19.Equipmentselection,installationandmaintenancetipsareonpages22-25.Oncethesystemisdesignedandinstalled,successfuloperationandmaintenancecomesfromstandardpracticefordripirrigation,includingregularfiltermaintenanceandperiodiclineflushing.•Emitterspacing,distancebetweendriplinerows•Maximumrunlengthandmaximumzonearea•Adjustmentsfortrees,slopes,andcurvesintheturfarea•Supplyandflushmanifolddesign•Calculationofapplicationratesandruntimes•Recommendedinstallationpractices•Definitionsforallunderlinedwordsinthismanualarefoundintheglossaryonpage27ThismanualiswrittenforIrrigationSpecifiersandLandscapeArchitects.IncludedherearethedetaileddesignstepstospecifyagridofRainBirdXF-SDIDriplinewithCopperShield™Technology,completewithinformationon:Sub-SurfaceDripIrrigationDesign,InstallationandMaintenanceGuide•Increasedefficiency•Useslesswater•Avoidsoverspray•Lesspronetovandalism•Healthyplantgrowth•Increasedwateringuniformity•Nodamagetofencesortrees•Lesswaterrun-offintosewers&drains•Lowermaintenance•Increasedtimeforfieldorturfusage•Nowindissues•LessevaporativelossItisachallengetoavoidoversprayinnarrowturfareasalongaroadway,narrowparkingstrip,orcardealership.Theseexamplesshowhowsubsurfacedripirrigationcanavoidoverspraybyirrigatingfrombelowgrade.BESTAPPLICATIONSSOMEBENEFITSOFSUB-SURFACEDRIPIRRIGATION•Curvesandedges•Narrowturfareas•Largeturfareas•Sub-surfaceshrub&groundcoverareas•Nearbuildings•Adjacenttoparkinglots•Smallconfinedarea•AthleticFieldsNarrowstripsornexttoroadwaysAdjacenttobuildingsorhardscapesCarDealershipsorparkinglotsSub-SurfaceDripIrrigationDesign,InstallationandMaintenanceGuide•ManifoldorSupplyLine•ControlZone•XF-SDISeriesDripline•AirReliefValve•ManualFlushValve•RainBirdControllerInstallAir/VacuumReliefValvesatthehighestpoint(s)ofthedriplinezoneLowVolumeControlZone(RefertoControlZonePyramidforsizing)Burieddripline2”frompavededgeManualFlushPointinstalledatthelowpointofexhaustXF-SDIDriplinewithCopperShield™TechnologyXF-SDIDriplinewithCopperShield™TechnologyTopofvalveboxConnecttoflushmanifoldCoilsofflexibletubingtodirectflushwaterWhatisthepointofconnectioninformationfortheoverallprojectsite;size,flowrate,staticanddynamicpressure?Whatisthepredominantsoilandsubsoiltype(sand,loam,orclay)?Isthewatersupplyadequateforonezone?Ifnot,howmanyzonesareneeded?Shouldtreesbeirrigatedwithaseparatezone?Isthereaslopeandshouldthebottomoftheslopebeonaseparatezone?Arethereunusualshapesorcurvesaroundtheedges?Isitasmallzonethatcanusepolyethylenemanifolds,oralargezonethatrequireslargerdiametermanifolds?Whatistheprecipitationrateandwhatistheruntimetoapplytherequiredwater?Sub-SurfaceDripIrrigationDesign,InstallationandMaintenanceGuide™UNDERTURFGRASSDeterminetheavailableflowrateoftheirrigationwaterChoosetheemitterflowrate,spacingbetweenemitters,andspacingbetweenrows;thenseparatetheprojectintozonesMakeaninitialdecisionaboutthenumberandsizeofeachzoneAdjustfortrees,slopes,andirregularedgesandaddmorezonesifnecessaryLayoutthefinalgridpatternanddesignthesupplyandflushmanifoldsDeterminetheprecipitationrate,runtimeandschedulingEASYSOILTYPETEST1009010802070306050403020101009080706050403040506070809010020100PercentageofClayPercentageofSiltPercentageofSandClaySiltyClaySandyClaySandyClayLoamSandyLoamLoamSandSandLoamySiltSiltLoamClayLoamSiltyClayLoam1.Remove1to2cupsofsoilfromthezonetobeirrigated.2.Placeintoaglassjar,likeamasonjar.3.Fillthejarhalfwaywithwater.Shakeandletsitfor2hourssotheparticlescansettle.Theheaviersandparticleswillsettletothebottom,thensilt,thenclayontop.4.Measur