【英文标准名称】:Hydraulicturbines,storagepumpsandpump-turbines-Caviatationpittingevaltuation-Evalutioninreactionturbines,storagepumpsandpumps-turbines
【原文标准名称】:水轮机,蓄能泵和水泵水轮机.气蚀损坏的评定.反击式水轮机,蓄能泵和水泵水轮机的评定
【标准号】:BSEN60609-1-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-02-10
【实施或试行日期】:2005-02-10
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:气蚀;定义;定义(术语);电气工程;评估;水压机;冲击式涡轮机;水泵水轮机;泵;蓄水泵;测试;涡轮机;水轮机
【英文主题词】:Cavitationcorrosion;Definition;Definitions;Electricalengineering;Evaluations;Hydraulicmachines;Impulseturbines;Pumpturbines;Pumps;Storagepumps;Testing;Turbines;Waterturbines
【摘要】:ThispartofIEC60609servesasabasisfortheformulationofguaranteesappliedtocavitationpittingforreactionhydraulicturbines,storagepumpsandpump-turbines.Itaddressesthemeasurementandevaluationoftheamountofcavitationpittingoncertainspecifiedmachinecomponentsforgivenconditions,whicharedefinedinthecontractbyoutput,specifichydraulicenergy(E),speed,material,operation,etc.Thecavitation-pittingevaluationisbasedonthelossofmaterialduringagiventimeandunderaccuratelydefinedoperatingconditions.Allwettedsurfacesareconsidered.Thecontractdocumentsshallstatewhethercavitationpittingonthehydraulicmachineshouldorshouldnotbeanticipatedinallorinsomeoperatingranges.Guaranteesthatrestricttheextentofcavitationpittingarenecessaryinthecontractwhethercavitationpittingisanticipatedornot.1ExcludedtopicsandlimitationsThisstandarddoesnotcoverothereffectswhichcavitationmaypossiblyhaveonthemachinesuchas:-output,efficiency,vibration,mechanicalintegrity,andnoise;and-materialdefectsrevealedduringoperation.Materialdefectsrevealedbywearonthemachinesurfacesduringoperationarenotincludedinaguaranteeagainstcavitationpitting.2ConsiderationsconcerningchemicalcompositionofwaterItisassumedinthisstandardthatthewaterisnotchemicallyaggressive.Incaseswherethewaterisconsideredtobechemicallyaggressive,thecavitation-pittingguaranteeshallbegivenonthebasisofanagreedwateranalysis.Sincechemicalaggressivenessisdependentuponsomanypossiblechemicalcompositions,andthematerialsofthemachine,itisbeyondthescopeofthisstandardtosetparticularlimits.Ifitbecomesapparentinthecourseoflateranalysisthatthewaterisinfactmoreaggressivethantheagreedanalysisindicated,thismustbetakenintoconsiderationwhenevaluatingwhetherthecavitation-pittingguaranteeshavebeenmet.Ifcavitationpittingoccursinzoneswheredamagecanbeseparatelyattributabletochemicalorelectrochemicalcorrosion,suchdamageshallbeexcludedfromtheevaluationofcavitationpitting.Ifcavitationpittingoccursinzoneswheredamagecanbeproventohavebeenincreasedbychemicalorelectrochemicaleffectsadditionaltothosenormaltocavitationinwateroftheagreedanalysis,thensuchzonesshallbeexcludedfromtheevaluationofcavitationpitting.3ConsiderationsconcerningwatercontainingsolidsAbrasionduetowatercontaminatedwithsolids(forexample,sand)cannotbeconsideredascavitation-pittingdamage.Whenamachineoperatesinwatercontainingasignificantamountofsolids,theweightlossofmaterialwillbeintensifiedduetothejointactionofbothcavitationpitting(ifitexists)andabrasion.Thedegreeofintensifyingdestructiondependsonvariousaspects,suchassedimentconcentration,mineralcomposition,sizegradationandimpactparameters(i.e.relativevelocityandincidenceangle)aswellasthematerialcharacteristicsandhydraulicmachineoperationconditions.Whenasurfaceisalteredbyabrasionerosion,cavitation-pittingdamagecanbeinitiatedandacceleratedbecauseofthehydraulicshapechange.Withrespecttomeasurementofdamage,itisimportanttorealizethat,forcavitationerosiondamageandabrasionerosiondamage,theappearance,positionandmechanismofdestructionisnotsimilar.Ifcavitationpittingoccursinzoneswheredamagecanbeseparatelyattributedtoabrasion,suchdamageshallbeexcludedfromtheevaluationofcavitationpitting.Whiletheexamplesofamountsofcavitationpittingandmeasurementmethodsgiveninthisstandardcovercavitation-pittingdamageonly,itmustberecognizedthatsomehydrositesoperateinwaterthatcontainssignificantamountsofsolidsforatleastsomeportionoftheyear.Sinceerosionduetoabrasionissodependento
【中国标准分类号】:J71
【国际标准分类号】:23_080;27_140
【页数】:24P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 石油气体管道阻火器阻火性能和试验方法 |
| 英文名称： | The quenching ability of flame arrester and its test method for petroleum gas piping systems |
| 中标分类： |
医药、卫生、劳动保护 >>
消防 >>
防火技术 |
| ICS分类： |
环保、保健与安全 >>
消防 >>
防火
|
| 替代情况： | 被GB/T 13347-2010代替 |
| 发布部门： | 国家技术监督局 |
| 发布日期： | 1992-01-05 |
| 实施日期： | 1992-10-01 |
| 首发日期： | 1992-01-05 |
| 作废日期： | 2011-06-01 |
| 主管部门： | 公安部 |
| 归口单位： | 全国消防标准化技术委员会 |
| 起草单位： | 中国石化总公司北京设计院 |
| 出版社： | 中国标准出版社 |
| 出版日期： | 1900-01-01 |
| 页数： | 平装16开， 页数：5， 字数：6000 |
适用范围
本标准规定了石油气体管道阻火器的技术要求和阻火性能试验方法。本标准规定的阻火器适用于防止管端回火火焰通过阻火器向管道来气方向传播。根据阻止回火火焰的传播速度范围可分：a.阻爆燃型阻火器；b.阻爆轰型阻火器。
前言
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目录
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引用标准
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所属分类： 医药 卫生 劳动保护 消防 防火技术 环保 保健与安全 消防 防火