1、BRITISH STANDARD BS EN 12952-16:2002 Water-tube boilers and auxiliary installations Part 16: Requirements for grate and fluidized-bed firing systems for solid fuels for the boiler The European Standard EN 12952-16:2002 has the status of a British Standard ICS 27.040 BS EN 12952-16:2002 This British
2、Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 7 January 2003 BSI 7 January 2003 ISBN 0 580 41074 9 National foreword This British Standard is the official
3、 English language version of EN 12952-16:2002. When reference to this European Standard has been published in the Official Journal (OJ) of the European Communities, compliance with it will confer a presumption of conformity with the essential requirements covered by the standard in respect of the Pr
4、essure Equipment Directive. The UK participation in its preparation was entrusted to Technical Committee 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 Standar
5、ds which implement international or European publications referred to in this document may be found 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 p
6、ublication does not purport to include all the necessary provisions of a contract. Users are responsible 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 interna
7、tional/European committee any enquiries on the interpretation, or proposals for change, and keep the 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 tit
8、le page, pages 2 to 19 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN1295216 December2002 ICS27.040 Englishversion Watertubebo
9、ilersandauxiliaryinstallationsPart16: Requirementsforgrateandfluidizedbedfiringsystemsforsolid fuelsfortheboiler ChaudirestubesdeauetinstallationsauxiliairesPartie 16:Exigencespourlesquipementsdechauffelitfluidis etgrillepourcombustiblessolidesdelachaudire WasserrohrkesselundAnlagenkomponentenTeil16
10、: AnforderungenanRostund WirbelschichtfeuerungsanlagenfrfesteBrennstoffefr denKessel ThisEuropeanStandardwasapprovedbyCENon4November2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalt
11、eration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberi
12、ntoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnited
13、Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN1295216:2002EEN1295216:2002(E) 2 Contents page Fo
14、reword3 1 Scope 4 1.1 Firingsystems 4 1.2 Fuels4 1.3 Operation 4 2 Normativereferences 5 3 Termsanddefinitions. .5 4 Fuelstoragefacilitieswithconveyingplant .7 4.1 General7 4.2 Conveyingplant . 7 4.3 Fuelbunkers .8 4.4 Fuelbins . 8 5 Fueltreatment 8 5.1 General8 5.2 Sizereductionofthefuel 9 5.3 Dryi
15、ngofthefuel 9 6 Fuelfeeding 9 7 Explosionpreventionmeasures. 10 8 Equipmentforcombustionairsupplyandfluegasdischarge.10 8.1 Airsupply 10 8.2 Combustionair/fuelratio . .11 8.3 Fluegasdischarge 11 9 Firingsystem. .12 9.1 General12 9.2 Monitoringandcontrol 12 9.3 Electricalequipment 12 9.4 Safetyprecau
16、tions .12 9.5 Commonstackforseveralfiringsystems . .14 10 Ashhandlingandextraction .14 11 Operatingmanual . .15 AnnexA (informative) Operationalrequirementsforpermanentlysupervisedfiringsystemsforsolid fuelsforfluidizedbedandgratefiringsystems. 16 AnnexZA (informative) ClausesofthisEuropeanStandarda
17、ddressingessentialrequirementsor otherprovisionsofEUDirectives 18 Bibliography 19EN1295216:2002(E) 3 Foreword Thisdocument(EN1295216:2002)hasbeenpreparedbyTechnicalCommitteeCEN/TC269“Shellandwater tubeboilers“,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstan
18、dard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyJune2003,andconflictingnationalstandardsshallbewithdrawnatthelatestby June2003. ThisEuropeanStandardhasbeenpreparedunderamandategiventoCENbytheEuropeanCommissionandthe EuropeanFreeTradeAssociation,andsupportsessentialrequirements
19、EUDirective97/23/EC1. ForrelationshipwithEUDirective97/23/EC,seeinformativeAnnexZA,whichisanintegralpartofthisdocument. TheEuropeanStandardEN12952concerningwatertubeboilersandauxiliaryinstallationsconsistsofthefollowing parts: Part1:General Part2:Materialsforpressurepartsofboilersandaccessories Part
20、3:Designandcalculationforpressureparts Part4:Inserviceboilerlifeexpectancycalculations Part5:Workmanshipandconstructionofpressurepartsoftheboiler Part6:Inspectionduringconstruction,documentationandmarkingofpressurepartsoftheboiler Part7:Requirementsforequipmentfortheboiler Part8:Requirementsforfirin
21、gsystemsforliquidandgaseousfuelsfortheboiler Part9:Requirementsforfiringsystemsforpulverizedsolidfuelsfortheboiler Part10:Requirementsforsafeguardsagainstexcessivepressure Part11:Requirementsforlimitingdevicesoftheboilerandaccessories Part12:Requirementsforfeedwaterandboilerwaterquality Part13:Requi
22、rementsforfluegascleaningsystems Part14:RequirementsforfluegasDENOXsystems Part15:Acceptancetests Part16:Requirementsforgrateandfluidizedbedfiringsystemsforsolidfuelsfortheboiler CR1295217, WatertubeboilersandauxiliaryinstallationsPart17:Guidelinefortheinvolvementofaninspec tionbodyindependentofthem
23、anufacturer. Althoughthesepartsmaybeobtainedseparately,itshouldberecognizedthatthepartsareinterdependent.As such,thedesignandmanufactureofwatertubeboilersrequirestheapplicationofmorethanonepartinorderfor therequirementsoftheEuropeanStandardtobesatisfactorilyfulfilled. NOTE Parts4and15arenotapplicabl
24、eduringthedesign,constructionandinstallationstages. AnnexAofthisEuropeanStandardisinformative. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowingcoun triesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,G
25、reece,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Swe den,SwitzerlandandtheUnitedKingdom.EN1295216:2002(E) 4 1Scope 1.1 Firingsystems ThisPartofthisEuropeanStandardappliestoatmosphericfluidizedbedandgratefiringsystemsofsteamboilers andhotwatergenerators.Thesesystemscomme
26、nceatthefuelbunkersandendattheashextractionplant.For combinationofvariousfiringsystems,theindividualrequirementsofeachsystemapply,especiallythoseincluded inEN129528andEN129529. Ifseveralfuelsareburntsimultaneouslyorifafuelqualityvariesconsiderably(e.g.moisturecontent),additional safetymeasuresmayben
27、ecessary,especiallywithrespecttolimitationofthefuelflowintothefiringsystemand ensuringproperairsupplytotheindividualfuels. Pressurizedfiringsystemsmayrequireenhancedsafetymeasures,whicharenotgiveninthisEuropeanStandard. 1.2Fuels ThisEuropeanStandardcoverstheuseofsolidfuels.Pulverizedfuelfiredinanent
28、rainedairflow(burner)system iscoveredbyEN129529. Solidfuelscoveredare: allcoalqualities,e.g.ligniteorbrowncoal,subbituminousorhardbrowncoal,bituminouscoalorhardcoal, pitchcoal,anthracite,coke,coalculm,coalsludge; otherfossilsolidfuels(e.g.peat,oilshale); biomasssolidfuels(e.g.wood,woodwastesbark,pel
29、lets,energyplantsmiscanthus,harvestwastesstraw andbriquettes); municipalwastesolidfuels(e.g.garbage,sewagesludge,refusederivedfuelsRDF); industrialwastesolidfuels(e.g.petrolcoke,soot,tyres,paperwastes,coatedwoodchips,spentwood,animal productwastes). Fuelblendsfromtwoormoregroups,orfuelsofunconventio
30、nalorunknownqualitymayrequirespecialsafety measureswhichcanbeprovedeitherbypracticalexperiencegainedfromcomparablefuels,orbysuitabletests, e.g.inaccordancewithEN 261841.Suchmeasuresspecifiedanddocumentedbythemanufacturer. Fuelsonwhichthedesignisdocumentedintheoperatinginstructions(see11.2).Thisinclu
31、dethefueldatafor 100%inputofthebasicfuelandthedataforanysupplementaryfuelstogetherwiththeirmaximumthermalinput percentage. 1.3Operation Therequirementsforoperationalequipmentinclauses4to11applytosteamboilersandhotwatergeneratorswith permanentsupervisionbyproperlytrainedpersonnelfamiliarwiththespecia
32、lconditionsofthefiringsystemsand thetypeoffuel.EN1295216:2002(E) 5 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences
33、,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN129528:2002, WatertubeboilersandauxiliaryinstallationsPart8:Requirementsf
34、orfiringsystemsforliquid andgaseousfuelsfortheboiler. EN129529:2002, WatertubeboilersandauxiliaryinstallationsPart9:Requirementsforfiringsystemsforpul verizedsolidfuelfortheboiler. prEN501561, ElectricalequipmentforfurnacesandancillaryequipmentPart1:Requirementsforapplication, designandinstallation.
35、 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thefollowingtermsanddefinitionsapply. 3.1 annunciator devicetosenseanonstandardorabnormalconditionandinitiateavisualand/oraudiblesignal 3.2 backupfiringsystem separatefiringsystemtomaintainsafeignitionandstablecombustion 3.3 basicfire inthe
36、caseofgratefiringsystemsthelayerofglowingfuel,firebed,orflameofthefedfuel NOTE Thebasicfireensuressafeignition. 3.4 carriergas transportmediumforpneumaticconveying 3.5 combustionair totalairsuppliedtothefiringsystemforcombustion 3.6 combustionprocessmonitoringdevice devicewhichdetectsthepresenceofth
37、efire,ortheconditionsrequiredforastablecombustionprocess 3.7 firingsystemheatinput heatinputintothecombustionchamber.Thisnormallyiscalculatedasthemassflowofthefuelmultipliedbyitsnet calorificvalue 3.8 firingsystems thetotalequipmentrequiredforthecombustionoffuels,includingtheinstallationsforthestora
38、geintheboiler house,preparationandsupplyoffuels,thecombustionairsupply,thegrateorfluidizedbed,thefluegasdis charge,andallrelatedcontrolandmonitoringdevicesEN1295216:2002(E) 6 3.9 fluidizedbedcombustionfiringsystems(FBC) fuelisburntinitsfluidizedstatetogetherwithaninertcomponent 3.10 fuelbin silo dus
39、ttightandairtightcontainerforstorageoffuels 3.11 fuelbunker containerforthestorageofsolidfuel 3.12 fuelfeedingsystem devicetotransportfuelintothecombustionchamber NOTE Thiscanbeeffectede.g.byfeedersthroughportsinthefurnacewalls,bymeansofchutesorlances,throughthe bottomgrateorfluidizinggasdistributor
40、,orindirectlyintotheashrecirculationorcombustionairsupply. 3.13 fuelhandlingplant installationforconveying,mixinganddistributingsolidfuelstotheindividualfuelbunkersorfuelbins 3.14 gratefiringsystem fuelisburntinalayersupportedbyasysteme.g.firebars,whichcanhaveacoolingsystem 3.15 indicator measuringi
41、nstrumentwhichindicatesavariablevalue(e.g.pressure,temperature,flow,level) NOTE Itcanbeequippedwithanannunciator. 3.16 lightingupequipment facilitytoachievesafeignitionofthefeedfuel 3.17 limiter transducer,which,onreachingafixedlimitvalue(e.g.pressure,temperature,flow,level)isusedtointerruptand lock
42、outtheenergysupply.Itrequiresmanualunlockingbeforerestart 3.18 lockout interruptionoftheenergysupply.Manualunlockingisrequiredbeforerestart 3.19 minimumfluidizedbedtemperature lowesttemperatureofthefluidizedmaterialatwhichitcanbesafelyburnt 3.20 minimumheatinputofthefiringsystem minimumheatinputatwh
43、ichthefiringsystemcanbesafelyoperated 3.21 monitor transducerwhichonreachingofafixedlimitvalueandinitiatesanalarmand/oracutout.Theoutputsignalonly reversesifthecausingvaluehaschangedatadefinedrangeEN1295216:2002(E) 7 3.22 purgingofthefluegaspasses flowincludingairthroughthecombustionchamber,fluegaspasses,treatmentsystemsandassociatedductswhich effectivelyremovesanygaseouscombustibles 3.23 coldstartupcondition plantstartedwhenthetemperatureofceramicliningandbedmaterialisatambientvalue 4 Fuelstoragefacilitieswithconveyingplant
