1、BRITISH STANDARD BS EN 12952-15:2003 Water-tube boilers and auxiliary installations Part 15: Acceptance tests The European Standard EN 12952-15:2003 has the status of a British Standard ICS 27.040 BS EN 12952-15:2003 This British Standard, was published under the authority of the Standards Policy an
2、d Strategy Committee on 14 October 2003 BSI 14 October 2003 ISBN 0 580 42757 9 National foreword This British Standard is the official English language version of EN 12952-15:2003. It supersedes BS 2885:1974 which is withdrawn. The UK participation in its preparation was entrusted to Technical Commi
3、ttee PVE/2, Water-tube boilers, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found
4、in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are respons
5、ible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the
6、 UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 89 and a back cover. The BSI copyright notice displayed in this document indicat
7、es when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN1295215 September2003 ICS27.040 Englishversion WatertubeboilersandauxiliaryinstallationsPart15: Acceptancetests ChaudirestubesdeauettubesdefumePartie15: Es
8、saisderception WasserrohrkesselundAnlagenkomponentenTeil15: Abnahmeversuche ThisEuropeanStandardwasapprovedbyCENon12June2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Upto
9、datelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlan
10、guageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandU
11、n ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN1295215:2003EEN1295215:2003(E) 2 Contents
12、Page Foreword3 1 Scopeandfieldofapplication 4 1.1 Fieldofapplication 4 1.2 Scope 4 1.3 Generalinformation. 5 2 Normativereferences 5 3 Termsanddefinitions. .6 4 Symbolsandabbreviationsandcoefficients 6 4.1 Symbolsandabbreviations . .6 4.2 Coefficients.10 5 Guaranteedparameters. 11 5.1 Basisfordeterm
13、iningguaranteedparameters. 11 5.2 Parameterssubjecttoguarantee . 12 5.3 Additionalmeasurements. 12 5.4 Supplyofsteamgeneratorcomponentsbyseveralmanufacturers 12 6 Basictestconditions. 13 6.1 Methodsofdeterminingefficiency. 13 6.2 Generalconditions 13 6.3 Preliminarytestruns . 13 6.4 Conditionofsteam
14、generator .13 6.5 Steadystateconditions . .13 6.6 Performanceoftest . 14 6.7 Otherinformation. 17 7 Instrumentationandmethodsofmeasurement .17 7.1 General17 7.2 Pressuremeasurements . 18 7.3 Temperaturemeasurements .18 7.4 Massandmassflow 18 7.5 Calorificvalues .19 7.6 Chemicalcomposition .20 7.7 El
15、ectricpower .21 8 Heatbalanceandthermalefficiency. .21 8.1 Heatbalanceandenvelopeboundary .21 8.2 Referencetemperature. .27 8.3 Heatinput,heatoutputandlosses 27 8.4 Thermalefficiency 53 9 Correctionstoguaranteeconditions. 59 9.1 General59 9.2 Correctionfordeviationsofwater/steamsideinletparameters.6
16、 1 9.3 Correctionofefficiencybyinputoutputmethodtoguaranteeconditions .61 9.4 Correctionofefficiencybyheatlossmethodtoguaranteeconditionsviaheatbalance62 9.5 Correctionofefficiencybyheatlossmethodtoguaranteeconditionswithchangeinfluegas temperature 65 9.6 Efficiencyunderguaranteeconditions . 69 10 A
17、veraginganduncertaintyofmeasurement. 70 10.1 General70 10.2 Averagingandcorrections .70 10.3 Fundamentalsofcalculatinguncertainty 71 10.4 Guidevaluesformeasurementuncertainties. 73 10.5 Calculationofuncertainty. 82 AnnexA (normative) StatisticalCombustionCalculation.85 Bibliography 87EN1295215:2003(
18、E) 3 Foreword ThisdocumentEN1295215:2003hasbeenpreparedbyTechnicalCommitteeCEN/TC269“Shellandwatertube boilers”,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestby March2004 ,andconflictingn
19、ationalstandardsshallbewithdrawnatthelatestby March2004 . ThisdocumenthasbeenpreparedunderamandategiventoCENbytheEuropeanCommissionandtheEuropean FreeTradeAssociation.ThisEuropeanStandardisconsideredasasupportingstandardtootherapplicationand productstandardswhichinthemselvessupportanessentialsafetyr
20、equirementofaNewApproachDirectiveand shouldappearasanormativereferenceinthem. TheEuropeanStandardseriesEN12952concerningwatertubeboilersandauxiliaryinstallationsconsistsofthe followingparts: Part1: General. Part2: Materialsforpressurepartsofboilersandaccessories. Part3: Designandcalculationforpressu
21、reparts. Part4: Inserviceboilerlifeexpectancycalculations. Part5: Workmanshipandconstructionofpressurepartsoftheboiler. Part6: Inspectionduringconstruction,documentationandmarkingofpressurepartsoftheboiler. Part7: Requirementsforequipmentfortheboiler. Part8: Requirementsforfiringsystemsforliquidandg
22、aseousfuelsfortheboiler. Part9: Requirementsforfiringsystemsforpulverizedsolidfuelsfortheboiler. Part10: Requirementsforsafeguardsagainstexcessivepressure. Part11: Requirementsforlimitingdevicesoftheboilerandaccessories. Part12: Requirementsforboilerfeedwaterandboilerwaterquality. Part13: Requiremen
23、tsforfluegascleaningsystems. Part14: RequirementsforfluegasDENOXsystems. Part15: Acceptancetests. Part16: Requirementsforgrateandfluidizedbedfiringsystemsforsolidfuelsfortheboiler. CR12952Part17:Guidelinefortheinvolvementofaninspectionbodyindependentofthemanufacturer. AlthoughthesePartsmaybeobtained
24、separately,itshouldberecognizedthatthePartsareinterdependent.Assuch, thedesignandmanufactureofwatertubeboilersrequirestheapplicationofmorethanonePartinorderforthe requirementsoftheStandardtobesatisfactorilyfulfilled. NOTE Part4and15arenotapplicableduringthedesign,constructionandinstallationstages. A
25、nnexAisnormative. ThisdocumentincludesaBibliography. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowingcoun triesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxemb
26、ourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN1295215:2003(E) 4 1 Scopeandfieldofapplication 1.1 Fieldofapplication ThisEuropeanStandardcoversdirectfiredsteamboilersandhotwatergenerators,includingtheauxiliaries.Forthe purposesofthisstandard,steamboile
27、rsandhotwatergeneratorsarevesselsandpipeworksystemsinwhich: steamatapressurehigherthanatmosphericpressureisgeneratedforuseexternaltothesystem; waterisheatedtoatemperaturehigherthanthesaturationtemperatureatatmosphericpressureforuseex ternaltothesystem. Asteamgeneratornormallyconsistsofthefluegasheat
28、edevaporator,thesuperheater,thereheater,thefeedwater heater,theairheater,thefuelheater,ifany,andthefuelburningequipment. Thetermdirectfiredrelatestoequipmentbymeansofwhichthechemicalheatinthefuelofknowncompositionis convertedtosensibleheat.Suchequipmentcaninvolvestokerfiring,fluidizedbedcombustionor
29、burnersystems. Theauxiliariesincludethefuelfeeders,thepulverizer,theFD(forceddraught)fan,theID(induceddraught)fan,the facilitiesforremovaloftherefuse(combustionresidues),thesteamairheater,themainairheater,thefuelheater,if any,andthedustcollector. Thisstandarddoesnotcover: unitsfiredwithspecialfuels(
30、e.g.refuse); pressurizedsteamgenerators(e.g.pressurizedfluidizedbedcombustion(PFBC)boilers); steamgeneratorsincombinedcyclesystems. Thisstandardcanbeappliedbyanalogytotheacceptancetestingof: indirectfiredunits(e.g.wasteheatboilers); unitsoperatedusingotherheatcarriers(e.g.gases,thermaloils,sodium).
31、Wherethisstandardistoserveasthebasisfortheacceptancetestingofheattransfersystems,anagreementshould havebeenreachedbythetimethecontracthasbeenconcludedwithregardtoanyspecialfeatureswhichmayhave aneffectonthemeasurementsandinterpretationoftestresults. 1.2Scope Thisstandardisintendedasthebasisforthethe
32、rmalperformance(acceptance)testingofdirectfiredsteamboilers andhotwatergenerators.Suchtestsaredesignedtodemonstratethattheguaranteeswithrespecttoefficiencyand outputorotherparametershavebeenmet. Thisstandardincludes(amongotherthings): recommendationsfortheperformanceofacceptancetests(seeclause6); ad
33、efinitionoftheenvelopeboundaryofthesteamgeneratingunitandoftheefficiency(seeclause8); detailsontheuncertaintyofmeasurement(seeclause10).EN1295215:2003(E) 5 1.3General information Thestandardprovidesinformationonagreementsrelatingtothetypeandscopeofacceptancetests.Suchagree mentsshouldbemadepriortote
34、stingoratthetimewhenthesteamorhotwatergeneratorisordered. Theagreementscanrefertothefollowing: scopeofsupply,envelopeboundary,referencetemperature; methodofdeterminingthermalefficiency,direct(inputoutput)methodorindirect(heatloss)method; additional measurements; testconditions,suchasdegreeofcleanlin
35、ess,timetoreachsteadystateconditionandtestduration; anydeviatingtestconditions; blowdownandsootblowing; functionaluseofinstrumentationotherthanspecifiedinclause6; steamtableandtablesforotherthermodynamicpropertiestobeused; anyspecialcorrectionmethods; locationandpositionofmeasuringpoints. 2 Normativ
36、ereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean
37、Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN8371, PressuregaugesPart1:BourdontubepressuregaugesDimensions,metrology,requirementsand testing. EN129521:2001, Watertubeboilersandauxiliaryinstallatio
38、nsPart1:General. EN26801, RubberorplasticshosesDeterminationofvolumetricexpansion(ISO6801:1983). EN605841, ThermocouplesPart1:Referencetables(IEC605841:1995). EN605842, ThermocouplesPart2:Tolerances(IEC605842:1982+A1:1989). EN60751, Industrialplatinumresistancethermometersensors(IEC60751:1983+A1:198
39、6). ENISO3170, PetroleumliquidsManualsampling(ISO3170:1988,includingAmendment1:1998). ENISO3993, LiquefiedpetroleumgasandlighthydrocarbonsDeterminationofdensityorrelativedensity Pressurehydrometermethod(ISO3993:1984). ENISO51671, MeasurementoffluidflowbymeansofpressuredifferentialdevicesPart1:Orific
40、eplates, nozzlesandVenturitubesinsertedincircularcrosssectionconduitsrunningfull(ISO51671:1991). ISO157, CoalDeterminationofformsofsulfur. ISO334, SolidmineralfuelsDeterminationoftotalsulfurEschkamethod.EN1295215:2003(E) 6 ISO589, HardcoalDeterminationoftotalmoisture. ISO609, SolidmineralfuelsDeterm
41、inationofcarbonandhydrogenHightemperaturecombustionmethod. ISO625, SolidmineralfuelsDeterminationofcarbonandhydrogenLiebigmethod. ISO1217, DisplacementcompressorsAcceptancetests. ISO1928, SolidmineralfuelsDeterminationofgrosscalorificvaluebythebombcalorimetricmethod,andcalcula tionofnetcalorificvalu
42、e. ISO1988, HardcoalSampling. ISO5389, TurbocompressorsPerformancetestcode. 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thetermsanddefinitionsgiveninEN129521andthefollowingapply. 3.1 directmethod inputoutputmethod efficiencyisdeterminedastheratioofheatabsorbedbytheworkingfluids(watera
43、ndsteam)totheheatinput (chemicalheatplusheatcreditsaddedtothesteamgenerator) 3.2 indirectmethod heatlossmethod determinationofallaccountableheatlosses,heatcreditsandtheheatinthefuel.Theefficiencyisthenequalto 100minustheratioofthesumofallheatlossestothesumofheatinthefuelplusheatcredits 3.3 standardcondition embracestheconditionat p n =1,01325barand t n =0C 3.4 refuse combustionresiduesthatareobtainedintheformoffluedustorinthemoltenand/oragglomeratedsolidstate (slag),includingthe
