1、BRITISH STANDARD BS EN 14197-1:2003 Cryogenic vessels Static non-vacuum insulated vessels Part 1: Fundamental requirements The European Standard EN 14197-1:2003 has the status of a British Standard ICS 23.020.40 BS EN 14197-1:2003 This British Standard, was published under the authority of the Stand
2、ards Policy and Strategy Committee on 2 September 2003 BSI 2 September 2003 ISBN 0 580 42561 4 National foreword This British Standard is the official English language version of EN 14197-1:2003. The UK participation in its preparation was entrusted to Technical Committee PVE/18, Cryogenic vessels,
3、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 in the BSI Catalogue under the s
4、ection 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 responsible for its correct application
5、. 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 UK interests informed; monitor
6、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 11 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last is
7、sued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN141971 August2003 ICS23.020.40 Englishversion CryogenicvesselsStaticnonvacuuminsulatedvesselsPart 1:Fundamentalrequirements ProduitscryogniquesRcipientsfixes,nonisolssous videPartie1:Exig
8、encesfondamentales KryoBehlterOrtsfestenichtvakuumisolierteBehlter Teil1:Grundanforderungen ThisEuropeanStandardwasapprovedbyCENon2July2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutany
9、alteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemb
10、erintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,
11、SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN141971:2003EEN141971:2003(E
12、) 2 Contents page Foreword3 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions. .4 4 Generalrequirements 7 5 Mechanicalloads .7 5.1 General7 5.2 Loadduringthepressuretest . .7 5.3 Othermechanicalloads 7 6 Corrosioneffects . 8 7 Thermalloads. 8 8 Material8 8.1 General8 8.2 Selectionofmaterials 8
13、 8.3 Inspectioncertificate .8 8.4 Materialsforequipment . .9 9 Design,fabrication,inspectionandtesting . .9 10 Marking .9 11 Finalacceptancetest .10 12 Periodicinspection 10 AnnexZA (informative) ClausesofthisEuropeanStandardadressingessentialrequirementsorother provisionsofEUdirectives .11EN141971:
14、2003(E) 3 Foreword Thisdocument(EN141971:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC268“Cryogenicvessels”, thesecretariatofwhichisheldbyAFNOR. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyFebruary2004,andconflicting
15、nationalstandardsshallbewithdrawnatthelatest byFebruary2004. ThisdocumenthasbeenpreparedunderamandategiventoCENbytheEuropeanCommissionandtheEuropean FreeTradeAssociation,andsupportsessentialrequirementsofECDirective(s). ForrelationshipwithECDirective(s),seeinformativeannexZA,whichisanintegralpartoft
16、hisdocument. EN14197consistsofthefollowingpartsunderthegeneraltitle“ CryogenicvesselsStaticnonvacuuminsulated vessels”: Part1:Fundamentalrequirements ; Part2:Design,fabrication,inspectionandtesting ; Part3:Operationalrequirements. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorga
17、nizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN141971:2003(E) 4 1Scope Thi
18、sEuropeanStandardspecifiesthefundamentalrequirementsforstaticnonvacuuminsulatedcryogenicvessels designedforamaximumallowablepressuregreaterthan0,5bar. ThisEuropeanStandardappliestostaticnonvacuuminsulatedcryogenicvesselsforfluidsasspecifiedin3.1. Forstaticnonvacuuminsulatedcryogenicvesselsdesignedfo
19、ramaximumallowablepressureofnotmorethan 0,5bar,thisEuropeanStandardcanbeusedasaguide. ThisEuropeanStandardisnotapplicabletovesselsbuiltonsite. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropr
20、iateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments).
21、 EN12521, CryogenicvesselsMaterialsPart1:Toughnessrequirementsfortemperaturesbelow80 C. EN12522, Cryogenicvessels MaterialsPart2:Toughnessrequirementsfortemperaturesbetween80 Cand 20 C. EN1626, Cryogenicvessels Valvesforcryogenicservice. EN1797, Cryogenicvessels Gas/Materialcompatibility . EN10204:1
22、991, MetallicproductsTypesofinspectiondocuments. EN12213, CryogenicvesselsMethodsforperformanceevaluationofthermalInsulation. EN13275, CryogenicvesselsPumpsforcryogenicservice. EN136481:, CryogenicvesselsSafetydevicesforprotectionagainstexcessivepressurePart1:Safetyvalvesfor cryogenicservice. EN1364
23、82, CryogenicvesselsSafetydevicesforprotectionagainstexcessivepressurePart2:Burstingdiscsafety devicesforcryogenicservice. prEN141972, CryogenicvesselsStaticnonvacuuminsulatedvesselsPart2:Design,fabrication,inspection andtesting. prEN141973, CryogenicvesselsStaticnonvacuuminsulatedvesselPart3:Operat
24、ionalrequirements. 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thefollowingtermsanddefinitionsapply: 3.1 cryogenicfluid(refrigeratedliquefiedgas) agaswhichispartiallyliquidbecauseofitslowtemperature.EN141971:2003(E) 5 Inthecontextofallpartsofthisstandardthefollowing(refrigeratedbut)no
25、ntoxicgasesandmixturesofthemare referredtoascryogenicfluidsasgivenintable1: Table1 Classification code Identificationnumber,nameanddescription a 3A Asphyxiantgases 2187 Carbondioxide,refrigeratedliquid 3158 Gas,refrigeratedliquid,N.O.S. b 3O Oxidizinggases 2201 Nitrousoxide,refrigeratedliquid 3311 G
26、as,refrigeratedliquid,oxidizing,N.O.S 3F Flammablegases 1038 Ethylene,refrigeratedliquid 3312 Gas,refrigeratedliquid,N.O.S. b a Itemgroup,identificationnumber,nameanddescriptionaccordingtoADR b N.O.S.=nototherwisespecified Theflammablegasesandmixturesofthemmaybemixedwith:Carbondioxideorotherasphyxia
27、ntgases. NOTE Mixturesofoxidizingandflammablegasesarenotacceptable. 3.2 staticcryogenicvessel athermallyinsulatedvesselintendedforusebyoneorbothcryogenicfluidsatastationaryplace,consistingofan insulatedvessel,allofthevalvesandequipment 1 )togetherwithanyadditionalsupportingfacilities. Thisstaticcryo
28、genicvesselisintendedtobetransportedemptyorcontainingmarginalresiduesofgas.Thisstatic cryogenicvesselrepresentsacompleteassemblyreadyforputtingintoservice. 3.3 thermalinsulation aninsulatinglayeraroundthevessel.Thelayerisnormallycoveredbycladding(e.g.ofsteel,aluminiumorplastic). 3.4 vessel vesselint
29、endedtocontainthecryogenicfluid. 3.5 normaloperation theintendedoperationofthevesseluptothemaximumallowablepressurewithinthedesignedtemperaturerange whenitislocatedatasite. Itmeansalsothetransportofthevesselwhenemptyorcontainingmarginalresiduesofgasesincludingthe handlingloadsdefinedin3.6. 1 ) inPED
30、accessoriesEN141971:2003(E) 6 3.6 handlingloads theloadsexertedonthestaticcryogenicvesselinallexpectedsituationsduringoperationincludingloading, unloading,installationetc. 3.7 puttingintoservice theoperationbywhichavesselispreparedtobeusedforthefirsttime.Itappliestoeitheranewvesselusedfor thefirstti
31、meoravesselwhichhasbeentakenoutofserviceandwillbebroughtintoservice 3.8 documentation technicaldocumentsdeliveredbythemanufacturertotheownerconsistingof: allcertificatesestablishingtheconformitywiththisstandard; ashortdescriptionofthevessel(includingcharacteristicdataetc.); alistoffluidsandtheirnetm
32、assforwhichthecryogenicvesselisdesigned; anoperatingmanual(fortheuser)whichconsistsof ashortdescriptionofthevessel(includingcharacteristicdataetc.), astatementthatthevesselisinconformitywiththisstandard; theinstructionsfornormaloperation. 3.9 pipingsystem allpipeswhichcancomeincontactwithcryogenicfl
33、uidsincludingtheirvalves,fittings,pressurereliefdevicesas wellastheirsupports. 3.10 safetyaccessories deviceswhichhaveasafetyrelatedfunctionwithrespecttopressurecontainmentand/orcontrol(e.g.protectiveor limitingdevices,regulatingandmonitoringdevices,valves,indicators). 3.11 manufacturerofthestaticcr
34、yogenicvessel 2 ) thecompanywhocarriesoutthefinalassemblyandtestingofthestaticcryogenicvessel. 3.12 volumeofthevessel volumeoftheshell,excludingnozzles,pipesetc.determinedatminimumdesigntemperatureandatmospheric pressure. 3.13 pressure pressurerelativetoatmosphericpressure,i.e.gaugepressure.Vapourpr
35、essureisalwaysexpressedinabsolute pressure. 3.14 maximumallowablepressure( p s ) themaximumoperatingpressureatnormaloperatingconditionsnormallymeasuredatthetopofequipment, specifiedforsafetyreasons 2 )inthesenseofPEDEN141971:2003(E) 7 NOTE p s isequivalentto PS usedinarticle1,2.3ofthePED. 3.15 filli
36、ngfactor themaximumquantityofgasinkgwhichmaybefilledinonelitreofthecryogenicvessel. 4 Generalrequirements Thestaticcryogenicvesselshallsafelywithstandthemechanicalandthermalloadsandthechemicaleffects encounteredduringpressuretest,normaloperationandrepressurizationofthevesselfollowingafallin temperat
37、urebelowtheminimumdesignlevel.(seealso7.3)Theserequirementsaredeemedtobesatisfiedif clauses5to9arefulfilled.Thevesselshallbemarkedinaccordancewithclause10,testedinaccordancewith clauses11and12andoperatedinaccordancewithprEN141973. 5 Mechanicalloads NOTE ThroughoutthisEuropeanStandard p s isequivalen
38、ttoPS usedinarticle1,2.3ofthePEDand p T isequivalentto PT usedinannexIofthePED 5.1General Thecryogenicvesselshallresistthemechanicalloadsmentionedinclause4withoutsuchdeformationwhichcould affectsafetyandwhichcouldleadtoleakage.Thisrequirementcanbevalidatedby calculation; bycalculationandpressurestre
39、ngthening; calculationandexperimentalmethod. Themechanicalloadstobeconsideredaregivenin5.2and5.3. 5.2 Loadduringthepressuretest Theloadsexertedduringthepressuretestis s T p p 43 , 1 where p T isthetestpressure,inbar; p s isthemaximumallowablepressure(=reliefdevicesetpressure),inbar. 5.3 Othermechani
40、calloads Thefollowingloadsshallbeconsideredtoactincombinationwhererelevant: apressureequaltothemaximumallowablepressureintheinnervesselandpipework; thepressureexertedbytheliquidwhenfilledtocapacity; loadsproducedbythethermalmovementoftheinnervessel,outerjacketandinterspacepiping; loadsimposedduringi
41、nstallationandremovaloftheemptyvessel;EN141971:2003(E) 8 windloadsandothersideconditions(e.g.seismicloads,thermalloads)tothevesselwhenfilledtocapacity. 6Corrosion effects Duetothenatureofcryogenicfluids,theirtemperatures,andthefactthatthe(inner)vesselisinsideaclad insulation,noexternalorinternaldegr
42、adationmechanismsisreasonableforeseeableonthecryogenicvessel. Thereforenocorrosionallowanceisrequiredonsurfacesincontactwiththeoperatingfluidorsurfacesoftheinner vesselcoveredbythecladinsulation.Additionally,noinspectionopeningsarerequired. 7 Thermalloads Thefollowingthermalconditionsshallbetakenint
43、oaccount: 7.1 Forthevesselanditsassociatedequipmentthefullrangeoftemperatureexpected;e.g.forCO 2 : aminimumtemperatureof40Cor60C(dependingonkindofmaterialincontactwiththecryogenic fluid); amaximumtemperatureof+50C 7.2 Forotherequipmentthanthatcoveredin7.1: aminimumambienttemperatureof20C; amaximumambienttemperatureof+50C. 7.3 Specialconsiderationshallbegiv
