ImageVerifierCode 换一换
格式:PDF , 页数:16 ,大小:179.93KB ,
资源ID:708840      下载积分:10000 积分
快捷下载
登录下载
邮箱/手机:
温馨提示:
如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
如填写123,账号就是123,密码也是123。
特别说明:
请自助下载,系统不会自动发送文件的哦; 如果您已付费,想二次下载,请登录后访问:我的下载记录
支付方式: 支付宝扫码支付 微信扫码支付   
注意:如需开发票,请勿充值!
验证码:   换一换

加入VIP,免费下载
 

温馨提示:由于个人手机设置不同,如果发现不能下载,请复制以下地址【http://www.mydoc123.com/d-708840.html】到电脑端继续下载(重复下载不扣费)。

已注册用户请登录:
账号:
密码:
验证码:   换一换
  忘记密码?
三方登录: 微信登录  

下载须知

1: 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。
2: 试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。
3: 文件的所有权益归上传用户所有。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 本站仅提供交流平台,并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。

版权提示 | 免责声明

本文(EN 14222-2003 en Stainless steel shell boilers《不锈钢外壳的锅炉》.pdf)为本站会员(appealoxygen216)主动上传,麦多课文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文库(发送邮件至master@mydoc123.com或直接QQ联系客服),我们立即给予删除!

EN 14222-2003 en Stainless steel shell boilers《不锈钢外壳的锅炉》.pdf

1、BRITISH STANDARD BS EN 14222:2003 Stainless steel shell boilers The European Standard EN 14222:2003 has the status of a British Standard ICS 27.060.30 BS EN 14222:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 14 May 2003 BSI 14 May 200

2、3 ISBN 0 580 41804 9 National foreword This British Standard is the official English language version of EN 14222:2003. The UK participation in its preparation was entrusted to Technical Committee PVE/16, Shell boilers, which has the responsibility to: A list of organizations represented on this com

3、mittee 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 section entitled “International Standards Correspondence Index”, or by using the

4、“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. Compliance with a British Standard does not of itself confer immunity from leg

5、al 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 related international and European developments and promulgate them in the UK. S

6、ummary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 12, an inside back cover 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 Comm

7、entsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN14222 April2003 ICS27.060.30 Englishversion Stainlesssteelshellboilers Chaudirestubesdefumeenacierinoxydable EdelstahlGrowasserraumkessel ThisEuropeanStandardwasapprovedbyCENon21February2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalReg

8、ulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversi

9、ons(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,G

10、reece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploit

11、ationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN14222:2003EEN14222:2003(E) 2 Contents page Foreword3 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions. .4 4 Materials5 5 Design .5 6 Manufacture5 7 Inspectionandtesting .5 8 Marking .5 9 Requirementsforequipment 5 9.

12、1 General5 9.2 Safeguardsagainstexcessivepressure . 5 9.3 Materialsforvalves,fittings,flangesandbolting . .5 9.4 Limitingdevicesandsafetycircuits 6 9.5 Boilerheatsupply 6 9.6 Waterlevelindication 6 9.7 Steampressureindication. .7 9.8 Drainandblowdowndevices 8 9.9 Valvesforconnections 8 9.10 Feedwate

13、rsupply 8 9.11 Feedwatercontrol . 8 9.12 Limitingdevices. 9 10 Operationalaspectsofsteamboilers. .9 11 Smallsteamboilers .9 AnnexA (informative) Operationalaspectsofsteamboilers 10 AnnexZA (informative) ClausesofthisEuropeanStandardaddressingessentialsafetyrequirements ofthePressureEquipmentDirectiv

14、e .11 Bibliography 12EN14222:2003(E) 3 Foreword Thisdocument(EN14222:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC269“Shellandwatertube boilers“,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthel

15、atestbyOctober2003,andconflictingnationalstandardsshallbewithdrawnatthelatest byOctober2003. ThisdocumenthasbeenpreparedunderamandategiventoCENbytheEuropeanCommissionandtheEuropean FreeTradeAssociation,andsupportsessentialrequirementsofEUDirective(s)PressureEquipmentDirective (PED)97/23/EC1. Forrela

16、tionshipwithEUDirective(s),seeinformativeannexZA,whichisanintegralpartofthisdocument. ThisEuropeanStandardreferstoEN 12953:ShellboilersandEN13445:Unfiredpressurevessels. AnnexAisinformative. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboun

17、dtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN14222:2003(E) 4 1Scope ThisEuropeanStandardspecifiesrequirementsfor

18、electricallyheatedshellboilersmanufacturedfromstainless steelspecificallydedicatedforgeneratingsteamforsterilizersanddisinfectors. ThisEuropeanStandardcoversonlyboilersthatareheatedbyimmersionheatersandwhichhaveamaximum allowablepressure(PS)of6bar,amaximumvolume(V)of1000litresandaproductofPSxVnotgre

19、aterthan 3000barxl. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesep

20、ublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN285:1996, SterilisationSteamsterilizersLargesterilizers . EN129531, ShellboilersPart1:General . EN129535, ShellboilersPa

21、rt5:Inspectionduringconstruction,documentationandmarkingofpressureparts oftheboiler. EN129536, ShellboilersPart6:Requirementsforequipmentfortheboiler. EN129538, ShellboilersPart8:Requirementsforsafeguardsagainstexcessivepressure. prEN129539:1999, ShellboilersPart9:Requirementsforlimitingdevicesandsa

22、fetycircuitsoftheboilerand accessories. EN134452:2002, UnfiredpressurevesselsPart2:Materials. EN134453, UnfiredpressurevesselsPart3:Design. EN134454, UnfiredpressurevesselsPart4:Fabrication. EN134455, UnfiredpressurevesselsPart5:Inspectionandtesting. EN602041, SafetyofmachineryElectricalequipmentofm

23、achinesPart 1:Generalrequirements (IEC602041:1997). 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thetermsanddefinitionsgiveninEN129531andEN129536and thefollowingapply: 3.1 controls devicesusedformaintainingthevariabletobecontrolled(e.g.waterlevel,pressure,temperature)ataspecific value(

24、setpoint) 3.2 limiters devicethat,onreachingafixedvalue(e.g.pressure,temperature,flow,waterlevel)isusedtointerruptandlock outtheheatingenergysupplyandlockoutrequiresmanualunlockingbeforerestartEN14222:2003(E) 5 3.3 lockout isolationofenergysupplywhichrequiresamanualinterventiontoreinstate 3.4 functi

25、onalcheck testingofthesafetydevicetoensureitperformsitsintendedfunction 4Materials Eachsteamboilershallbemanufacturedfrommaterialsinsteelgroup 8or10inaccordancewith EN134452:2002,annexA. 5Design EachsteamboilershallbedesignedinaccordancewithEN134453. 6Manufacture Eachsteamboilershallbemanufacturedin

26、accordancewithEN134454. 7 Inspectionandtesting Eachsteamboilershallbeinspected,testedanddocumentedinaccordancewithEN134455. 8Marking TherequirementsformarkingshallbeinaccordancewithEN1 29535. 9Requirements for equipment 9.1General Thefollowingrequirementsforequipmentforelectricallyheatedstainlessste

27、elshellboilersareworkedoutonthe basisofEN129536. 9.2 Safeguardsagainstexcessivepressure EachsteamboilershallbeequippedwithsafeguardsagainstexcessivepressureinaccordancewithEN129538. InadeviationfromEN129538theminimuminsidediameterofthesafetyvalveseatcouldbereducedto8mm. 9.3 Materialsforvalves,fittin

28、gs,flangesandbolting Steelmaterialsforvalves,fittings,flangesandboltingshallbeinaccordancewithEN134452.EN14222:2003(E) 6 9.4 Limitingdevicesandsafetycircuits 9.4.1 LimitersshallbedesignedinadditiontoprEN129539.InaccordancewithprEN1 29539:1999,5.4.2level electrodeinclinationsbetween45and90fromthevert

29、icalshallbeallowedprovidedthatfunctionalcapability examinationshaveprovensuccessful.TheelectricalsafetycircuitsshallbeinaccordancewithEN602041. 9.4.2 Functionalcheckingofalllimitersshallbepossibleatanytimeduringoperatione.g.bysimulationwhere appropriate. 9.4.3 Ifalimiterresponds,theboilershallautoma

30、ticallygotoasafeconditionandasignalshallbegivento indicateboilermalfunction. 9.4.4 Aftermanualresettingofalimiterlockout,theboilershallbeputbackintooperationbymanual interventiononly. 9.5 Boilerheatsupply 9.5.1 Thepressureofeachboilershallbecontrolledautomaticallybyregulatingtheheatingenergyinput. 9

31、.5.2 Automaticstartupoftheboilerandthesystemispermittedprovidedthatequipmentisinstalledtoensure thatstartupisconductedsafely.Automaticrestartingafternormalshutdownshallnotbeconsideredastartup. 9.5.3 Ahightemperaturealarmdeviceforshuttingofftheheatingenergysupplyshallbeprovided.Thealarm temperaturesh

32、allbedeterminedbythemanufacturer. 9.5.4 TheelectricalsupplycircuitsandthesafetyofthecontrolequipmentshallconformtoEN602041. 9.6 Waterlevelindication 9.6.1 Eachsteamboilershallhaveatleastoneindependentmeans(independentfromotherequipment)of indicatingthewaterlevel,whichshallbeagaugeoftransparentmateri

33、aldirectlyconnectedtotheboilershell. 9.6.2 Thegauge(s)shallbemountedsothatthewaterlevelisvisiblethroughthetransparentmaterialatthe lowestalarmlevel,i.e.atthelowestpermissiblewaterlevel(LWL),whichshallbemarked.Themaximum permissiblewaterlevel,whichshallbespecifiedbytheboilermanufacturer,shallbevisibl

34、e.Thegaugeshallbe capableofshowingameasurementof“15mmbelowLWL“. 9.6.3 Thelowestpermissiblewaterlevel(LWL)oftheboiler(seeFigure1),whichshallbepermanentlyand legiblymarkedontheboilershellandidentifiedbytheletters“LWL“,shallbeatleast30mmabovetheuppermost surfaceoftheimmersionheaters“HHS“.EN14222:2003(E

35、) 7 Key 1 Controlledwaterlevel 2L W L 3 HHS Figure1Waterlevelindication 9.6.4 Pipesandfittingsconnectingawaterlevelgaugetoaboilershallbeasshortaspossibleandconstructed sothatnoundrainedpocketisformedbetweentheboilerandthegauge.Thereshallbenooutlettherefromexcept forregulators,steampressuregaugesandd

36、rainsorothersimilarapparatus,whichdoesnotpermittheescapeofa significantamountofsteam. Pipesconnectingawaterlevelgaugetotheboilershallnotbelessthan8mmbore.Whereachamberofasafety controloralarmdeviceisfittedtothewatergaugeoritspiping,theconnectingpipesbetweentheboilerandthe waterlevelgaugeshallhaveabo

37、renotlessthan15mm. 9.6.5 Wherethewaterlevelgaugeisapartoftheboilershell,therequirementsof9.6.4shallnotapply. 9.7 Steampressureindication 9.7.1 EachboilershallhaveasteampressuregaugeinaccordancewithEN285:1996,6.1.1.2,connectedtothe steamspaceeitherdirectlyorthroughthewaterlevelgaugecolumnoritssteamco

38、nnection. 9.7.2 Thesteampressuregaugeshallbeconnectedtoasiphonorsimilardeviceofsufficientcapacitytokeep thegaugetubefilledwithwater.Thepipeshallbeofsufficientsizeandshallhaveprovisionforblowingthroughif possible.Alternativelythepressurelineshallbefittedwithanisolatingmembraneclosetotheboiler.Thepres

39、sure linebetweenthemembraneandthegaugeshallcontainanoncompressiblefluid. 9.7.3 Steampressuregaugeconnectionsshallbemadesuitableforthedesignworkingpressureoftheboiler. 9.7.4 Pressuregaugesshallbegraduatedtoindicatethepressureinbars.Themaximumallowablepressure shallbeindicatedbyafixedandreadilyvisible

40、redmarkonthepressuregauge. NOTE Inaddition,theoperatingpressureandthesafetyvalvesetpressuremayalsobeindicated. 9.7.5 Eachboilershallbeprovidedwithavalveconnectionforthespecialpurposeofconnectingatestgauge whentheboilerisinservicesothattheaccuracyoftheboilersteamgaugecanbeascertained.EN14222:2003(E)

41、8 9.8 Drainandblowdowndevices 9.8.1 Eachboilershallbefittedwithdrainvalvesplacedat,orasnearaspracticableto,thelowestpointofthe apparatus. NOTE Onsomeboilers,drainvalvesmaybeusedforblowdownpurposes. 9.8.2 Wheredrainvalvesfromtwoormoreboilersareconnectedtoacommondischarge,twovalvesshallbe fittedtoeach

42、drainline,onebeingofanonreturntypetopreventthecontentsofoneboilerpassingtoanother.As analternativetothenonreturnvalvesaninterlocksystem,enablingonlyonevalvetobeopenatatimeshallbe allowed. 9.8.3 Taperplugvalveswherefitted,shallbeoftheboltedcovertypewithseparatelypackedglands. 9.8.4 Wheredrainvalvesar

43、enotselfclosingorcapableofbeinglockedintheclosedposition,afurthershutoff deviceshallbeinstalledintheline. NOTE Havingthedrainvalveenclosedbyacabinetoraninspectiondoorisincludedintheterm“beinglockedinaclosedpositi on“. 9.9 Valvesforconnections 9.9.1 Steamoutlets Thestopvalveconnectingtheboilertothesteampipeshallbeattacheddirectlytotheboilerorshallbeasnearto itaspracticable.Thevalveshouldpreferablybeofatype,whichpositivelyindicateswhetheritisopenorclosed. Where

copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
备案/许可证编号:苏ICP备17064731号-1