ISO 046792023.docx

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1、INTERNATIONA1.STANDARDISO4679editionFirst2O23-O6Shipsandmarinetechno1.ogy一Hydrau1.icperformancetestsforwaterjetpropu1.sionsystemNaviresettechno1.ogicmaritimeEssaisdeperformancehydrau1.iquepourIeSySmmedepropu1.sionhydrojetCOPYRIGHTPROTECTEDDOCUMENTISO2023IUirhM*hedbdi1.iUedotherwiseupdhi.o啪InyM1.tta0

2、DmkfifiU81.andonnet8CH-1214Vernier,GenevaPhone：M1.227490111觥ftte:丽丽BQrgPub1.ishedinSwitzer1.andContentsforeword一IV2Scope一13Normativereferences1.Terms,definitions,svnbkandabbreviatedterms1Measurementandaccentancecriteria34.1Genera1.34.2Mcjsurcrncntrange44.3Sb1.cationop1.f1.CmMiibUetidrufmeasuringsyst

3、ems44.5Eva1.uationofefficiencyorpower5Measurementuncertainty6S.IGenera1.65.2Statistica1.eva1.uationofovera1.1.measurementuncertainty65.2.1random5.2.2Eva1.uationoftheSystematicuncertainty65.2.3Overa1.1.uncertainty75.2.4Determinationofovera1.1.uncertaintyofefficiency75.3.Conversion,853.1Conversiontoth

4、eguaranteeconditions65.3.2Trans1.ationofthetestresu1.tsHTestmethod96.1Testcondition96.1.1Test1.ocation96.1.3Test96.1.4Testout1.ine96.1.5Environmentandwaterqua1.ity9g4estdeU牌S106.3.1Genera1.106.3.2Performancetest107Testreporti.11AnnexA(informative)Testreport12AnnexB1111fortnativc1.Workingsectionofthe

5、testdevice15Bib1.iography18ForewordISO(theInternationa1.OrganizationforStandardization)isawor1.dwidefederationofnationa1.standardsttiugh(ISObiftbniK盟RucekuWPfff1.QbbGgbodyIHtf1.r三dtiJMtbtandrtdftnowhRmitteehasbeenestab1.ishedhastherighttoberepresentedonthatcommittee.Internationa1.organizations,gover

6、nmenta1.andnon-governmenta1.,in1.iaisonwithISO,a1.sotakepartinthework.ISOco1.1.aboratesc1.ose1.ywiththee1.ectrotechnica1.standardization.Internationa1.E1.ectrotechnica1.Commission(IEC)ona1.1.mattersofTheproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermaintenancearedyiFFHSOfISo雇etW1.

7、kes,s姗抬”n3c；yktyw1.物心间tc嚓CordanCeJ精theeditoria1.ru1.esoftheISO/IECDirectives.Part2(seewwwjso.org/dircc1.ives).曲曲谶en1.a隧H%ntakes般福舐岫)瓢oncf1.部隔隔配8砒HH野ntm解If醐课梅乐,daimcdpatentrightsinrespectthereof.Asofthedateofpub1.icationofthisdocumentISOhadnotreceivednoticeof（八）patent(三)whichmayberequiredtoimp1.ement

8、thisdocument.However,imp1.ementorsare懈怖翻琳躺/mj，wWjSOQFg/眸IentS洗蝮油那ion,扁MMSPOn赖岫油嬲部铀解Orasuchpatentrights.Anytradeusedinthisconstitutenameendorsenent.documentisinformationgivenfortheconvenienceofusersanddoesnotForanexp1.anationofthevo1.untarynatureofstandards,themeaningofISOSPeCifiCtermsand幽幽蛔豳酒侬遮W即辆O)

9、assEif1.眦聚inwe帼1.吼。nBar池帆四deadPNccs现u11uisobrgiso/foreword.htmI.Anyfeedbackorquestionsonthisdocumentshou1.dbedirectedtotheuser,snationa1.standardsbody.Acomp1.ete1.istingofthesebodiescanbefoundatwwwGF7embe4um1.Shipsandmarinetechno1.ogyHydrau1.icperformancetestsforwaterjetpropu1.sionsystem1 Scopeperfo

10、11nancetestsforwaterjetpropu1.sionsystemofC1.assAandC1.assB.Specifiedwaterconditions.Thisdocumentforacceptanceprecisiongradeofmidd1.e-sizedintermediateandrequirementsdocumentequipmenttheensureconditionstestC1.assbecarriedoutUnderrecommendationsgear,documentSystcmnotandinc1.udemisce1.1.aneouspartsofw

11、aterjetunit,suchassteeringandreversing2 Normativereferences3 Terms,denitions,symbo1.sandabbreviatedtermsISOandIECmaintaintermino1.ogydatabasesforuseinstandardizationatthefo1.1.owingaddresses:3.1 IECE1.ectropedia:avai1.ab1.eathttpsWWW,e3Hopedia,org/waterjetunit3.2waterjetpropu1.sionsystem3.3waterjetp

12、umpNOteimPeuer,entry:Vane,waterjetpumpshaft(hereinaftercounter-actingforcepump).Thethemaintypesmixed-f1.owconsists0o(rpe.Theaxia1.f1.owwaterjetpumpisoneinwhichthe1.iquidisdischargedaxia1.1.yfromtheimpe1.1.er.Themixed-owwaterjetpumpIsoneinwhichthe1.iquidIsdischargedfromimpe1.1.erwithanang1.ea(3.4 f1.

13、owrateQ3.5pumptota1.headHNoteHtoentrr:Pumptota1.headisgivenbyFormuIa(I):whereNote2toentry:Un1.essotherwisespecified,thebase1.ineoftheheadisthewaterjetpropu1.sionshaft1.ine.3.6pumppowerinputP(SOURCE:ISO17769-1:2012,2.1.11.2,modifiednote1toentyhasbeende1.eted.)pumpefficiencyPubyFormu1.amechanica1.powe

14、rtransferredtothe1.iquidduringitspassagethroughthepump,givenPggQHbeenexp1.ained.typenumberKK=3=3vo1.umeOf1.iquiddischargedbywaterjetpump(3.3)perunittimea1.gebraicdifferencebetweentheout1.ettota1.head,H2,andthein1.ettota1.head,H=Hi1WH1.isthein1.ettota1.head,expressedinPa;Hzistheout1.ettota1.head,expr

15、essedinPa.SOURCE:ISO9906:2012,3.2.15,modifiednotes1and2toentryhavebeenmodified.powertransmittedtothepumpbyitsdriverproportionofthepumppowerinput(3.6),P1de1.iveredaspumppoweroutput,Pu,atgivenoperatingconditionsNote1toentry:PumpefficiencyisgivenbyFormu1.a(2)：77whereisusefu1.(3);(SOURCE:ISO17769-1:2012

16、2.1.12.1.modifiedFormu1.a(3)hasbeenaddedandthesymbo1.shave3.8dimensionIeSSyIantity/efinedbyFormu1.a(4):,川/where,isheadofthefirststage,expressedinm；Note1tocntr):TpositivesuctionheadNPSHNOteNPS/entry:Netpositivesuctionheadisca1.cu1.atedhyFormti1.a(三):gPVISOURCErand17769-1:2012,2.1.5.5,modifieddefinit

17、ionhasbeenmodified;thesymbo1.shavebeen-503.10guaranteepointMeasurementandacceptanceCriterianote1toentryhasbeende1.eted.4.1Genera1.measurementparameterspressure,torquejwerspeedefficiency.A1.1.ThederivedparametersSha1.1.ca1.cu1.atedcriteriagivesexpressedacceptancepercentagesguaranteeva1.ues.Theshafteq

18、uipmentefficiency.Iheacccptancerequirementsbemutua1.1.yagreedapp1.icab1.e,purchaseragreementsmanufacturer.thecceptanceCriteriamanufacturentheISO2023-A1.1.rightsreservedXisvo1.umef1.owratepereye,expressedinnn/s;isexpressedintime,1.ikes-randnisexpressedin60min-form.3.9pumpin1.ettota1.headabovethehead,

19、equiva1.enttothevapourpressureperunitvo1.ume1.iquid,i.e.pumpin1.ettota1.headaddsheadequiva1.enttoatnwsphericpressureandsubtractsheadequiva1.enttothevapourpressurebVOPIe=H1.D+0z(5)wherePbis(abso1.ute)atmosphericpressure,expressedinPa;is(abso1.ute)vapourpressure,expressedinPa；ZDisheighto11mpe1.1.erin1

20、et,expressedinm.modifiedISOthenotes3and4toentryhavebeende1.eted.operatingperformanceofthepumpwhichthesupp1.ierguaranteestobeachievedunderspecifiedconditions4S0URCE:ISO17769-1:2012,2.1.13.2,modifiedThebasicparametersofthewaterjethydrau1.icperformancetestsdirect1.yobtainedfromthefromthebasicowrate,ar

21、ehead,shaftandandofrotation.Ofthesemeettheacceptancecriteriaspecifiedinthisc1.ause.Tab1.e1aretheas1.eve1.ofofpumphead,f1.owrate,testpowerandsha1.1.meetA1.1.measuringprecisionrequirements.Themeasuringapparatusandtheirca1.ibrationshou1.dbeconfirmed.Boththepurchaserandmanufacturersha1.1.beentit1.edtoha

22、verepresentativespresentata1.1.tests.Thedateofthesha1.1.inTab1.e1andifbytheanyandbetweenpurchaserandsha1.1.Tab1.e1AcceptancecriteriaforC1.assAandC1.assB%Pumppowerinput11,5guaranteesimi1.arwrittenanddetai1.edspecificdocumentation,customer-specificwaterjetperformancea)Theacceptancegradeshou1.dbeinacco

23、rdancewithUIegradesgiveninTab1.e.c) connection,performanceshou1.dbeguaranteedbetweenthewaterjetsin1.etconnectionandout1.etCombinationtestedmanufacturingto1.eranccsmeasurenicntto1.eranccsintopracticemanufacturingandTheperformancetowaterjetrequirementsandguide1.inesnaturewhich1.iquidbeingpumped.A1.tho

24、ughandmanufacturer,thenumberofwaterjetswhicharetestedshou1.dbeagreedbetweenthepurchaser3.2 Measurementrangeidentica1.speedofrotation.3.3 Stab1.eoperatingconditionsofmeasuringsystemstestStandmanUfaCtUrer.manufacturersgradeworks,Ortesttestequipmentmutua1.1.ydecidedbymeasuringpurchaseraccumu1.ate.There

25、adingsofde1.iveredsigna1.sshou1.dsatisfythestab1.econdition.capi1.1.aries,whichshou1.dprovidemeasurement.BuffercontainatShou1.donesymmetrica1.uctuationperiod.4QuantityCIassAC1.assBPumpefficiency2,252,9Acurve,orpointmaybeprojectinawrittencontract.Ifnototherwiseagreeduponbetweenthepurchaserandthemanuf

26、acturer,thefo1.1.owingshou1.dapp1.y.b)Testsshou1.dhecarriedoutontheteststandofthemanufacturersworkswithc1.eanrco1.dwater,usingthemethodsandtestarrangementsspecifiedinthisdocument.Thewaterjetd) Pipeandfittings(bends,reducers,andva1.ves)outsidethewaterjetarenotapartoftheguarantee.Theto1.erancesofva1.u

27、es.TheandgiveninTab1.e1takeaccountbothnecessitatestheusageofmeasurementto1.erances.itisnotpossib1.eofagivegenera1.variessubstantia1.1.ywiththeinofthec1.ean,co1.dwatercanbeusedpredictperformancewithother1.iquids,itisdesirab1.eforthepartiestoagreeonempirica1.ru1.estosuittheparticu1.arcircumstances.For

28、batchproducts.Thef1.owrateismeasuredwithintherangeof80%to110%ofthebestefficiencypointordutypointatThevariationbetweenthemeasuredspeedofrotationandspecifiedspeedofmtationshou1.dbewithin20%forC1.assAandtherangefrom60%to120%forC1.assB.Thetestshou1.dbecarriedoutontheteststandwhichmeetsthecorrespondingpr

29、ecisiongrade.TheandthemaybetheTheprecisiontestoftheastandisagreedthebetweenthesystem.Thef1.owrate,in1.etandout1.etpressure,speedofrotation,torque,whicharenatura1.1.yf1.uctuatingwhenmeasuredinthetests,aswe1.1.asthesigna1.s,areautomatica1.1.yrecordedorthestatistica1.recordsIfthedesignoroperationofthep

30、umpcausesa1.argef1.uctuationinthemeasuredva1.ue,abufferdevicemaybeinsta1.1.edinthe-meaMringinstnmentoritsconnectingpipe1.ine,toreducethef1.uctuationtotherangegiveninTab1.e2forintegra1.va1.uesthatdevices1.eastbecomp1.eteand1.inear,1.ikeTab1.e2Permissib1.eamp1.itudeoff1.uctuationasapercentageofmeanva1

31、ueofquantitiesbeingmeasuredMeasuredquantityPermissib1.eamp1.itudeofuctuationsC1.assAC1.assBTorque23Nun%SRf1.FSeF1.owrate,pumptotAed,torqueandpumppowerinput3SeedofrotationofreadingsTT11TTT11T11OIInrccrq11d1111TJrCa!ngScTYCciTCyuc11vcuu11ctJT1111V3V11intCSTCa11gSCnusunpThevariationofquantitiessha1.1.

32、meettherequirementofTab1.e3(seeISO5198；Tab1.e31.imitsofvariationbetweenrepeatedmeanva1.uesofthesamequantity(basedon95%confidence1.imits)311r1111tccpointcNumherofsetstd11t11tdepr1111ft11theatdowrate,pumptotaTnead,torqueandppprpowerRputIS1peeSckSsrotJ(nPermissib1.eamp1.itudeoff1.uctuationsMeasuredquan

33、tityC1.assA%C1.assB%72f2920.91.4Eva1.uationoff1.owandheadtotontfcjDdfsitedca1.DtrtteBtaia1.whichI1.ttfiAtBfitusrcMdtteoakhdsptedPtationaIspeed,eahtestPointShOUIdbereca1.cu1.atedtotheratedrotationa1.S1.eed,usingtheaffinityaws.FgWEtanceCriteriaoff1.owrateshou1.dbeapp1.iedtoitsguaranteepointattIeguaran

34、teehead,andIfthereisnospecia1.requirement,theguaranteepumptota1.head,Hg,isusua1.1.ymeasuredundertheconditionofguaranteef1.owrateofQG.Itsha1.1.meettheacceptancerequirementsthattheabso1.uteva1.ueoftheeviationbetweentheheadandtheguaranteepumptota1.headHGisnotgreaterthantheheadto1.eranceva1.ue.Ifthepurc

35、haserandthemanufactureragree,themethodOfdeterminingIrSranteeEVa加ati1.ftfSffWjft纱itf?洸WerPUmPtota1.head,Hg,maya1.sobeused.咫3Rfyfac母itinHi)u1.f()1.1.owin11f1.fifitedagainsttheapp1.icab1.eacceptanceISO2023-A1.1.rightsreservedAfterabest-fittestcurve(QHjQI/orPcurves)isdrawnandSmOOth1.yfittedthroughthemea

36、suredtestpoints,anadditiona1.straight1.ineshou1.dbedrawnbetweentheorigin(Orateoff1.ow,Ohead)andtheguaranteepoint(rateof11owhead).ifnecessary,this1.ineshou1.dbeextendedunti1.itsess曲fi(1.f三UhRRSM工和M似忸曲岫吼而聆旧脑甜即相图盘ion用职厢噩阳Xrs1.raightThemeasuredinputpowerorca1.cu1.atedefficiencyatthispointshou1.dbecompar

37、edagainsttheguaranteeva1.ueandtheapp1.icab1.epowerorefficiencyto1.erancefactors.NMWhm的肺NiW助etth3卸墟图翱比胤MUSq由帼的强皿惬锹谯the唾SftaMeeAddttuH*yWRBf1.囱怖孙幽segivesonesing1.epointofreferenceforeva1.uation.NOTE2Theto1.erance1.imitsforf1.owandheadcanbereducedasaresu1.tofaddingapowerguarantee.5Measurementuncertaint

38、y5.1 Genera1.Everymeasurementisinevitab1.ysubjecttosomeuncertainty,evenifthemeasuringproceduresandtheinstruments,aswe1.1.astherequirementsofthisdocument,methodsofana1.ysis,fu1.1.ycomp1.ywiththerecommendationsand5.2 Statistica1.eva1.uationofovera1.1.measurementuncertainty5.2.1 Eva1.uationoftherandomuncertaintyTherandomuncertaintydueeithertothecharacteristicsofthemeasuringsystemortovariationsofthemBasURbAytn1.ity,ran(1.oaniiMMt1.1.yas1.ace(i9Fatte.2.3Overa1.1.unierVaty09C1.assAi1.assBt11CVdU