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Procedure NumberHY-WP-M-005程序编号C需黑山东核电设备制造有限公司Rev.No1版本1of7页码Page瓣震饕Status区PRE/准备口CFC/执行参考程序编号/版本不合用Reference procedureNo./Rev./Not applicable/(惟独当程序编号规则发生This columnis modifiedonly whenthe numberingrule of the Procedureis changed变化时才修订此栏)文件名称:Document TitleVacuum Test Procedure真空试验程序文件类型工作程序Document Type/Working Procedure姓名及职务鎏名及日期批准*w NameTitle Signature/Date ApprovedbyPrepared by职务杨照东Yang Zhaodong/编制Title签名及时期Signature/DateReviewed by赵海丽Zhao Haili/审核QA Reviewer审核QA翻Translator译Translation译审reviewer版权声明Copyright Declaration:This documentis theproperty of the SNPEMC.It mustnot be used,reproduced,transmitted ordisclosed withoutthe priorwrittenpermission ofSNPEMCo本程序未经山东核电设备创造有限公司书面批准不得外用、复制和泄露Revision:1修改历史记录Historical Recordsof Modification版本发布日期修改范围及依据Rev.Issue dateScope andBasis of the Modification第一次发布1The firstissuanceRevision:1Table ofContents目录目的
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1.Purpose本程序合用于海阳型压水堆安全壳下封头焊缝的真空试验,为真空试验的具体操作提供理论AP1000依据,并为质量检查和控制提供依据QCThis Procedureapplies toVacuumTestoftheweld seamson bottomhead ofAP1000Pressurized WaterReactorPWR,providing theoreticalevidence to the vacuum test operationas wellas regulatingthe qualityinspection andcontrolof QC.范围
2.Scope本程序只合用于海阳核电现场组装和安装项目涵盖了安全壳下封头对接焊缝的真空AP1000CV CV试验方法及具体要求等This procedureonly appliesto CVSite Assemblyand ErectionProject ofHaiyang NuclearPower anddescribesthe methodand detailedrequirements ofthe vacuum test to the BHweld joints.工程概况
3.Project GeneralSurvey安全壳下封头在拼装车间完成拼装,之后运输到核岛现场进行安装,由于下封头安装时一部份要埋CV于混凝土之下,所以组装时就要完成对不能直接进行加压试验的底封头的真空试验检测,以便定位焊缝的泄露缺陷位置,及时进行返修处理CV BHwill beassembled at the workshopand thenbe transferredtotheNuclear Islandfor installation,completethe vacuumtest tothe BHwhich cannotafford directpressure testwhile assemblysince apart ofthe BHshall beimbeddedunder theconcrete duringinstallation operation,so that the defectsshall belocated andrepaired intime.参考
4.References含无损检测ASME V20012002ASME VEdition2001,including2002Addenda Non-destructive Test海阳项目质量保证手册HY-QAMQuality AssuranceManual forHaiyang ProjectHY-QAM参考文件为其发布的最新有效版本All referencedocuments arethe latesteffective revision/详细描述
5.Detail Description真空盒选择
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1.Selection ofVacuum Box真空盒选择长约宽约上部有清晰视镜的真空盒进行试验在真空盒底部与焊缝接连处750mm,150mm,要有合适的密封衬垫,保证真空盒内形成实验所需的真空度真空表的压力范围在之间示意0kpa-100kpa图如下Select avacuum boxof about750x150mm witha clearviewing glassat thetop.There shouldbe suitablecushionbetween thebottom ofthe vacuum box and the seam,which cangenerate therequired vacuity.Pressure scopeof thevacuumgauge shall be Okpa-10Okpa.Please seethe sketchbelow:Procedure No.:HY-WP-M-005Revision:1阀门真空表一,空压机LNO胶皮管\真空箱试验条件52Test Condition试件表面温度
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1.Surface Temperatureof Test-piece在真空检验整个过程中,被检验焊缝的金属表面温度应不低于不高于只要焊缝金属温度保持在5°,50%上述范围内,对焊缝金属的加热或者冷却是允许的当前述温度条件在不可能实现的情况下,如果程序证明可行的前提下,其它温度条件也可以采用Metal surfacetemperature oftested seamshall be5050°during theentire testprocedure.Cooling orheating oftheseams metalshall beallowed ifthe temperatureis maintainedwithin thisscope.Other temperaturecondition mayalsobe adoptedprovided thatit beapproved applicableby theprocedure ifthe abovetemperature cannotbe achieved.起泡溶液
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2.Bubbly Solution起泡溶液应该保证产生一层附着在被测件表面的薄膜,并且在空气风干及表面低张力的情况下气泡1不会轻易脱离起泡溶液本身所含的泡泡应该保持最低,以避免在试验时要区别起泡溶液本身的气泡以及因缺陷产生的气泡同时起泡溶液的使用条件应该与试验条件相一致The bubbly solution shouldbe ableto generate a filmcovering the surface being tested andthe bubbleshall notdivorceeasily undera conditionof airdry andlow surfacetensity.The bubblescontained by the solutionitself shallbe atalowest level,so asto distinguishthem fromthe bubblesgenerated bythe defectswhile testing.At themeantime,theapplication conditionofthebubblysolutionshallbethe sameas the test condition.在覆盖上真空盒之前,可通过喷、刷和洒的方式将起泡溶液作用于被测表面2The bubblysolution can be sprayed,brushed orsplashed onto the surface being testedbefore theapplication ofthe vacuum box.试验操作
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3.Test Operation真空盒放置
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1.Placement ofthe VacuumBox将真空盒放置于涂满起泡溶液的试件表面,将真空盒抽成试验所需的部份真空Put the vacuumboxontothe surface beingcovered withsolution;evacuate thebox togenerateapartial vacuityrequiredbythetest.底封头检验部位
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2.BH TestLocation为便于进行真空试验,选择底封头内表面焊缝进行真空试验Select theweld seamon theinner surfaceof BHto attendthe vacuumtest.真空来源
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3.Vacuum Source实验所需的真空可通过任何一种方便实用的方法得到(比如空气注射机,真空泵等),真空表到时需要记录至少的负压15KpaThe vacuitycan beformed byany ofthe practicaland convenientmethods suchas airinjector,suction pump...,thevacuumgauge needto recordat leasta negativepressure of15Kpa试验压力
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4.Test Pressure依据标准,试验时应保持真空盒内压力为
一、一的压力API62021Kpa35KpaThe pressureinside thebox shallbe keptas—21Kpa〜-35Kpa duringthetestaccording toAPI620requirements.压力保持
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5.Pressure Maintenance在试验时,真空盒要保持真空状态负压至少秒钟10The vacuumcondition negativepressure shallbe maintainedat least10sec.whilst testing.真空盒重叠检查
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6.Overlap ofVacuumBox对同一长度连续焊缝的真空试验,为保证试验范围及检测结果的准确,对真空盒的重叠长度应保100%持50mmoThe overlaplength shallbe kept50mm tomake sureof100%testing scopeandtheaccuracy oftest resultwhendoing avacuumtesttothecontinuous weldofthesame length.灯光和视觉观察
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7.Lighting andVisual Observation当观察者眼睛距离被测试表面在内,视线与被测表面角度在度以内的情况下,可直接进1600mm30行视觉检测可以使用镜子来改善视觉角度或者使用放大镜来辅助检查其中对某些特殊部位、部件、容器等的检测,合适的照明自然的或者外加的白光是必要的被测表面的最低光照强度可以是光照强WOluXo度、所用技术、光线等级证明等需要一次性记录在档案上Direct visualinspection isdoable whenthe testerseye is within adistance of600mm fromthesurfacebeingtested andthe lookangle ofeye andthesurfaceiswithin30°.Mirror canbeused to improvethe sightangle oruse loupetoassist theinspection.Suitable lightingnatural oradscititious whitelight isnecessary forthe testingof speciallocations,parts andcontainers...the lowestlighting intensityon thesurface maybe WOlux.The lightingintensity,technique used,light gradecertificate shallbe recordedin thefile one-off.在某些情况下,远距离视觉观察要替代近距离视觉观察远距离视觉检查要用到比如镜子、望远镜2等辅助设备Close visual observation shallbe replacedby distancevisual observationin somecases.Supplementaryappliances beingusedtothe closevisualobservationare mirror,telescope...and soon.泄露指示
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8.Leakage Indication检测区域若是有连续气泡冒出,说明被检区域表面或者焊缝有孔道缺陷There aredrill-way defectson thesurfacebeingtested orattheweld seamif bubblesgenerated continuouslyfromthe areabeingtested.清洁
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9.Cleaning检测完毕后要按要求将检测部位清洁使达到使用要求Clean thetested areaaccording to relative requirementsafter thetesting.评价
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10.Evaluation泄露缺陷1Leakage Defects如相关规范无专门说明,则检验部位若观察无连续气泡产生,就认为产品真空检验合格It willbe consideredqualified ifthere isno continuousbubble formingatthetested locationwhen thereis nospecificinstruction inrelative codes.返修/重新检测2Repair/Re-test若焊缝观察到有泄露部位,则应在此部位做上记号,真空盒排空,缺陷部位按相关规范要求进行返修,返修后按要求进行重新真空检验Mark thoseleakage locationsand evacuatethevacuumbox,repair thosedefects accordingtorelativecodes7requirements,-atodtin geof vacuumis requiredafter repair.操作人员资质
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4.Operator Qualification真空试验操作人员的资质依照的要求执行ASME III NE-5500Qualification ofvacuumtestoperator shallbe consistentwith therelative requirementsof ASMEIIINE-
5500.附录55AppendixThe formofVacuumTest Recordcanbefound inForm ControlProcedure.真空试验记录表可以在表格控制程序中找到。