板坯连铸机液压润滑系统管线的酸洗钝化施工方案

1、第 页共7页关于不锈钢二期板坯连铸机液压、润滑系统管线的酸洗钝化施工方案PicklingandPassivationSolutionForTheHydraulicandLubricationSystemofCon-caster一、清洗目的I.PurposeofCleaning管线在生产、运输会使管线内产生微量油污、金属粒子，特别是氧气管线内金属粒子可能与高纯氧高压氧化、撞击，产生电火花而发生不堪设想的严重后果，历史上这样惨重的事故很多，因此清洗钝化是必不可少的。Duringtheproductionandtransportationofpipes,oilresidue,metalpartica

2、ls,especiallythemetalparticalswouldreactwithhighpurityoxygenunderhighpressure,producingelectricsparklingandleadingtocatastrophicresult.Infact,ithappenedtimesagaininthepast.Therfore,itishighlynecessarytocleaningandpassivatingthepipinglines.项目名称：不锈钢专项炼钢分项板坯连铸机液压、润滑系统管线酸洗、钝化II.Projectname:PicklingandPa

3、ssivationSolutionForTheHydraulicandLubricationSystemofCon-caster1、氧化管线：OxydizedpipelinesSpec.LengthSpec.Length屮48X3.578m屮34X327m屮60X3.545m屮48X720m屮76X464m屮60X845m屮114X416m屮38X5500m屮10X1.564m屮42X2.570m屮12X236m屮89X3.2100m屮16X3500m屮20X3422.5m屮25X31104m屮30X4328m2、施工人员：6人，在双方达到协议开工后，我方将派出由项目负责人带队的有实践经验的专

4、业清洗工4人和一个安全员组成的队伍到现场实施清洗工作，可视工期及施工进度适当增加或减少人员。3、Operators:6operators.Beforetheagreeddateofstart-upofcleaning,wewilldispatch4experiencedcleaningworkersandasafetyinspectorledbyprojectmanagertoJISCOsiteforpipelinecleaning.Personnelarrangementisflexibleaccordingtotheactualdemandofprojectproceeding.4、施工机

5、具：清洗泵、4只耐酸清洗槽、吊车、加热器、水管、玻璃钢等。5、Operatingtools:cleaningpumps,4anti-acidcleaningtank,crane,heaters,waterpipe.6、安全措施：涉酸碱作业，所有工作人员配备安全帽、护目镜、防毒面具、耐酸碱手套、雨靴、穿戴齐全方可作业，现场配有5%的苏打水。7、Safetymeasurement:Forallworksinvolvingacidoralkaline,theoperatorsneedtobeequippedwithsafetyhelmet,eye-protectionglasses,mask,ant

6、i-acid/alkalinegloves,rainbootsetc.Anyoperatorwhoisnotsafelyequippedisforbiddentogetintothesite.5%sodawaterisavailableonsite.8、废液收集处理：清洗完毕后，清洗废液在槽内中和后经业主确认后排放。9、Collectionofwasteliquid:Aftercleaningprocedure,thewastewillbeneutrolizedinthetankanddischargedaftersafetyconfirmationofJISCO.二、具体施工方案三、Spec

7、ificoperationprocedure1、酸洗钝化工艺：采用脱脂、酸洗钝化三步分开进行法2、Picklingandpassivationprocedure:degreasingpicklingpassivation.脱脂高压水酸洗漂洗钝化高压水冲洗吹干封存Tobespecific:degreasinghighpressurewaterflushingpickling-rinsingpassivationhighpressurewaterflushingblowingtodry-coveredup.脱脂剂配方：氢氧化钠10%、碳酸钠50%、表面活性剂5%Recipeofdegreasing

8、agent:NaOH:10%;NaCH50%;surfaceactivationagent5%.酸洗剂配方：盐酸20%、硝酸50%、缓蚀剂1%Recipeofpicklingagent:HCL20%,Nitricacid50%,anti-corrosionagent1%钝化剂配方：磷酸50%、氧化锌35%、亚硝酸钠2%Passivationagentrecipe:Phosphoricacid50%,Oxydizedzinc35%,亚硝酸钠2%3、施工质量目标：有效去除管道内表面、油渍、锈渍、铁屑等杂物，形成钝化膜。4、Target:Removetheimpurities,oilresidues

9、,rustetc.ontheinnersurfaceofthepipeline.5、温度控制：脱脂常温、酸洗常温、钝化加温506、Temperaturecontrol:degreasing-ambienttemp.;pickling-ambienttemp.;passivation-heatupto507、施工质量检验：目视法，管线内壁无明显锈渍、杂物、油渍，形成完整的钝化膜。8、Qualityinspection:bynakedeyes,toseeifthereisobviousrust,impurity,oilresidue,andwhetherthecompletepassivation

10、filmhasbeenformed.9、施工工期进度：从进现场共计5天10、Timeconsumption:5daysalltogether准备工作1天1dayforpreparation.清洗3天3daysforcleaning,退场1天1dayforretreat11、工程清场及验收退场Projectclearance,inspectionandwithdrawal;1)清场：所有工具运出现场、废液中和排放Clearance;alltoolgetoutofsite,wasteliquidbeingneutralisedanddischarged.2)退场：检验合格，带管子缝墙运回现场，工程

11、达标完成关于不锈钢二期板坯连铸机液压、润滑系统管线的焊接施工方案WeldingsolutionforthepipingofhydraulicandlubricationsystemofCon-caster我单位油管焊接采取两个方案，一个是插入式焊接如下图所示2options:oneisinsertwelding,seefollowingdrawing:焊接由于此对接属于插入式，不会导致氧化皮进入管内，所以，只需要直接焊接即可。Byinsertconnection,thescalewillnotgetintothepipe,then,justweldthem.另一种焊接方式属于对接式焊接，如下图所示Anotherisbuttwelding,asshowninthefollowingdrawing:焊接氮气W（氩弧焊由于此对接方式，管内易产生氧化皮，故将管内充满氮气，将管内空气排净，且焊