无损检验工艺（压力管道）(doc 3)

中管网通用业频道HTTP/MADE21ASKCOM2009版制造业企业管理大全内容更丰富、查看更轻松、利用更便利、价格更实惠、购买更放心电话02568698690,68698693手Q961531377376977591616843241OFFSHOREPIONEERNDTPLANPRESSUREPIPEWORK无损检验工艺（压力管道）YTRS3069103B2/4中管网通用业频道HTTP/MADE21ASKCOM2009版制造业企业管理大全内容更丰富、查看更轻松、利用更便利、价格更实惠、购买更放心电话02568698690,68698693手Q961531377376977591616843241档案号入库日期制造管加工详细设计计划中心合计曲明明放样涂装焊接铁舾装船体木舾装电气轮机OWNERCLAS切割机加工TILE管理船体舾装涂装轮机SHIPREVEPCM计划DNV生产部质检船东项目组发图MODIFCATIONDATEBYDRAWNCHEKAPROVDDRAWINGOYTS3069103BHEFREV0SCALENOYTRS3069103BSHREPER无损检验工艺压力管道NDTPLANRESUPIEWORKOFSHREIGSERVICS1ACOLUMNSTABILSEDUNIT,DRLINGOPS,DYNPOSAUTRO,PSMORAT中管网通用业频道HTTP/MADE21ASKCOM2009版制造业企业管理大全内容更丰富、查看更轻松、利用更便利、价格更实惠、购买更放心电话02568698690,68698693手Q961531377376977591616843241OFFSHOREPIONEERNDTPLANPRESSUREPIPEWORK无损检验工艺（压力管道）YTRS3069103B3/4中管网通用业频道HTTP/MADE21ASKCOM2009版制造业企业管理大全内容更丰富、查看更轻松、利用更便利、价格更实惠、购买更放心电话02568698690,68698693手Q9615313773769775916168432410SCOPE适用范围THISPROCEDUREISTOBEUSEDFORPRESSUREPIPEWORKOFOFFSHOREPIONEERPROJECT本要求适用于OFFSHOREPIONEER钻井平台项目压力管道工程。ALLNDTOFTHEPRESSUREPIPEWORKSHALLBEASPERTHEFOLLOWINGREQUIREMENTS本项目所有压力管道的探伤应严格按照下述要求进行。1EXTENTOFNDT探伤比例THEEXTENTOFNONDESTRUCTIVETESTINGFORPRESSUREPIPEWORKWELDSSHALLBEASPERTABLE1压力管道的探伤比例见表1TABLE1EXTENTOFNONDESTRUCTIVETESTINGFORPRESSUREPIPEWORKWELDS表1压力管道探伤比例PIPECLASS管路类别ITEMSTOBEINSPECTED检测项目INSPECTIONMETHOD检测方法BUTTWELDEDPIPESWITHANOUTERDIAMETER761MM外径761MM的管对接焊缝100RADIOGRAPHICTESTINGRT100RTBUTTWELDEDPIPESWITHANOUTERDIAMETER761MM外径761MM的管对接焊缝10RADIOGRAPHICTESTINGRT10RTFILLETWELDEDFLANGECONNECTIONSINPIPESWITHANOUTERDIAMETER761MM外径761MM的管法兰角焊缝100MAGNETICPARTICLETESTINGMT100MTCLASSII类管FILLETWELDEDPIPESWITHANOUTERDIAMETER761MM外径761MM的管角焊缝RANDOMMAGNETICPARTICLETESTINGMT3MT抽检BUTTWELDEDPIPESWITHOUTERDIAMETER1016MM外径1016MM的管对接焊缝ATLEAST10RANDOMRADIOGRAPHIC至少10RT抽检CLASSIIII类管FILLETWELDEDPIPESWITHOUTERDIAMETER1016MM外径1016MM的管角焊缝RANDOMMAGNETICPARTICLETESTINGMT3MT抽检CLASSIIIIII类管FILLETWELDSONSAFETYCRITICALPIPINGWITHANOUTERDIAMETER1016MM保险系数要求高的，外径1016MM的管角焊缝RANDOMMAGNETICPARTICLETESTINGMT3MT抽检CLASSIIIOILPRODUCTIONANDORSTORAGEUNITSONLYIII类管（仅限于产油和储油元件）BUTTWELDEDSAFETYCRITICALPIPING1SUCHASFIREEXTINCTION,COOLINGWATER,FUELOIL,CRUDEOIL,BILGE,BALLASTETC保险系数要求高的管1对接焊缝，像消防管、冷却管、燃油管、原油管、污水管、压载水管等5RADIOGRAPHICTESTING25RT2NOTES注中管网通用业频道HTTP/MADE21ASKCOM2009版制造业企业管理大全内容更丰富、查看更轻松、利用更便利、价格更实惠、购买更放心电话02568698690,68698693手Q961531377376977591616843241OFFSHOREPIONEERNDTPLANPRESSUREPIPEWORK无损检验工艺（压力管道）YTRS3069103B4/4中管网通用业频道HTTP/MADE21ASKCOM2009版制造业企业管理大全内容更丰富、查看更轻松、利用更便利、价格更实惠、购买更放心电话02568698690,68698693手Q9615313773769775916168432411CRITICALITYSHOULDBEDETERMINEDBASEDONACCESSIBILITY,POSSIBILITYOFLOCALREPAIRANDCONSEQUENCEOFASSOCIATEDDOWNTIME危险程度与管道的可达性、局部修补的可能性和因此关闭导致的后果等有关。2THEEXTENTOFTESTINGMAYBEREEVALUATEDBASEDONTHERESULTOFTHEEXAMINATION检验范围可根据检验结果重新确定。3APPROXIMATELY2TO5约2到5。2OTHERS其它要求1）BOTHSIDESOFALLWELDEDPIPINGJOINTSSHALL,WHEREVERPOSSIBLE,BEVISUALLYEXAMINED只要可能，管道焊接接头的内外两侧都应进行外观检验。2）MAYBEPARTLYORWHOLLYREPLACEDBYULTRASONICTESTINGUPONAGREEMENT经验船师或船东同意，RT可以部分或全部用UT代替。3）LIQUIDPENETRATIONTESTINGTOBEADOPTEDFORNONFERROMAGNETICMATERIALS非铁磁性的材料可用PT代替MT。4）ADDITIONALNDTMAYBEREQUESTEDDURINGINSPECTION检验时，验船师和船东可要求额外的探伤。5）REPAIRWELDINGINTHESAMEAREAMAYBECARRIEDOUTTWICEFURTHERREPAIRSSHALLBEEVALUATEDINEACHINDIVIDUALCASEALLREPAIRSSHALLBEREINSPECTEDWITHTHESAMENDTMETHODSTOTHESAMEORINCREASEDEXTENTASNECESSARY同一区域的焊接修补可进行两次。若需进一步修补，每一情况应单独考虑。所有修补应使用与原焊缝相同的的NDT方法按照原先的探伤比例（或者验船师/船东要求的增加比例）进行检验。6）FREQUENTREPAIRSSHALLRESULTININCREASEDEXTENTOFNDTTHEEXTENTOFNDTSHALLBEINCREASEDINAMANNERSUCHTHATALLRELEVANTDEFECTSAREDISCOVEREDINTHEAREASOFCONCERNANDTHATREPRESENTATIVESAMPLINGISCARRIEDOUTONALLWELDS多次的返修必然导致探伤比例的增加。增加探伤比例应这样进行检验相关区域的所有相应缺陷，并且要对全部焊缝进行有代表性的抽样检验。（按验船师/船东要求进行）。7）IFSEVEREDEFECTSIECRACKSANDOTHERPLANARDEFECTSOREXCESSIVESLAGLINESOCCURREPEATEDLY,ALLWELDSMADEWITHTHESAMEWELDINGPROCEDUREDURINGTHEPERIODINQUESTION,SHALLBEEXAMINEDFULLLENGTH如果严重缺陷（例如裂纹和其它面缺陷或过长的渣线等）反复出现的话，那么这一阶段用相同焊接工艺焊接的所有焊缝应进行全长度的检验。8）THERESULTSOFRADIOGRAPHSSHALLBEGRADEDACCORDINGTOISO5817,ANDSHALLATLEASTMEETTHEREQUIREMENTSTOQUALITYLEVELBFORWELDSWHEREA100RADIOGRAPHICTESTINGISREQUIRE