VC空冷凝汽器安装指导书INSTRUCTION FOR THE ERECTION OF AIR COOLED CON.doc

VC空冷凝汽器安装指导书INSTRUCTION FOR THE ERECTION OF AIR COOLED CON 空冷凝汽器安装指导书INSTRUCTION FORTHE ERECTIONOF THEAIR COOLED CONDENSER项目名称PROJECT NAME合同号CONTRACT NO.印度维柯拉姆2X23MW热电厂EPC工程2x23MW TPPEPC PROJECTFOR VIKRAMCEMENT,INDIA CMEC-xx-C5-12-CT-EP-004主合同号CMEC-xx-C5-12-1MAIN CONTRACTNO.业主OWNER印度哥拉斯姆工业公司GRASIM INDUSTRIESLIMITED供应商:中国机械设备进出口总公司SUPPLIER:CHINA NATIONALMACHINERY&EQUIPMENT IMPORT&EXPORT CORPORATION.制造厂:无锡东盛石化装备有限公司MANUFACTURER:WUXI DONGSHENG PETROCHEMICAL EQUIPMENT CO.,LTD.空冷凝汽器安装指导书INSTRUCTION FORTHE ERECTIONOF THEAIR COOLEDCONDENSER摘要SUMMARY1.介绍INTRODUCTION1.1概述General1.2适用的设计图纸清单Overall listof theapplicable design drawings2.空冷凝汽器安装指导INSTRUCTIONS FORTHE ERECTIONOF ACC2.1概述General2.2安装作业程序Sequences oferection work2.3基础检验Checking the foundation2.4钢结构安装Structure erection2.5轴流风机系统安装Fan systemerection2.6管束吊装和焊接Lifting andwelding ofbundles2.7蒸汽分配管道和不凝汽出口汇集管安装和焊接Steam distribution pipe,Non-condensing steamoutlet pipeerection andwelding2.8冲洗装置安装Cleaning systemerection2.9挡风墙安装Wind wallerection WUXI DONGSHENG PETROCHEMICAL EQUIPMENT CO.,LTD.2/22空冷凝汽器安装指导书INSTRUCTION FORTHE ERECTIONOF THEAIR COOLEDCONDENSER1.介绍INTRODUCTION空冷凝汽器的主要设备有以下几个部分组成:ACC areposed ofsome mainequipments,such as:-顺流管束/逆流管束Condenser Bundle/Dephlegmator Bundle-轴流风机系统Fan Systema)风机Fan b)减速机Fan Reducer(Gearbox)c)电机Motor d)导风筒Fan Ringe)风机桥Fan Bridgef)鸟网Bird Screen-钢结构Steel Structurea)基础预埋螺栓和预埋钢板Foundation Bolt,Insert Plateb)A架A-Frame c)挡风墙Wind Walld)平台,栏杆,梯子Platform,Handrail,Ladder-蒸汽分配管道和不凝汽出口汇集管Steam Distribution Pipe,Non-condensing SteamOutlet Pipe-冲洗装置Cleaning Systema)冲洗水泵Water Pumpb)电机Motor c)冲洗装置Cleaning SystemACC外形轮廓可参见下列图片:ACC Outlineplease seelook atthe photosbelow WUXI DONGSHENG PETROCHEMICAL EQUIPMENT CO.,LTD.3/22空冷凝汽器安装指导书INSTRUCTION FORTHE ERECTIONOF THEAIR COOLEDCONDENSER WUXI DONGSHENG PETROCHEMICAL EQUIPMENT CO.,LTD.4/22空冷凝汽器安装指导书INSTRUCTION FORTHE ERECTIONOF THEAIR COOLEDCONDENSER1.1概述General1.1.1本文件是关于空冷凝汽器（以下简称ACC）的安装指导说明文件。 This documentexplains theinstructions relatingto the erection of the aircooled condenser(ACC)equipment.1.1.2假如未遵循本指导书进行安装，随之而产生的问题，无锡东盛石化装备有限公司（以下简称无锡东盛）将不承担责任。 Should theseinstructions aboutthe erectionnot beplied with,this wouldimply thatWuxi DongshengPetrochemical EquipmentCo.,Ltd.(WXDS)should not be held responsible for any subsequentproblem.1.1.3同样地，在设备现场安装和调试的过程中出现问题时，安装单位、买受人与或最终用户将得到无锡东盛服务部门或现场指导人员（当无锡东盛提供现场指导时）的书面答复。 Likewise,should anyspecific pointbe aproblem duringthe erection and thestart-up of the equipment,the fitter,the primecontractor and/or user,aording to the case,will geta writtenanswer from the ServiceDepartment ofWXDS orfromthesupervisor.（when WXDSprovides afield supervisionfor theseoperations）1.1.4现场安装作业应由有经验的人员来履行,安装人员的技术水平是保证由无锡东盛提供的装置得以正确安装和良好运行的主要因数。 The erectionoperations will be performedby askilled staff.The skilllevel of the staffin chargeis amajor parameterto ensurea properassembly anda goodoperation of the unitdelivered by WXDS.1.1.5相反地,由于不正确的安装或任何随之而引起的相应的损坏,无锡东盛将不承担任何责任。 In thecontrary case,WXDS can?tbeheldresponsiblefor theproblems whichcould arisefrom aerroneous assembly,oranyrelated consequentialdamages.WUXI DONGSHENG PETROCHEMICAL EQUIPMENT CO.,LTD.5/22空冷凝汽器安装指导书INSTRUCTION FORTHE ERECTIONOF THEAIR COOLEDCONDENSER1.2适用的设计图纸清单Overall listof theapplicable designdrawings相应的ACC现场安装所需的设计图纸清单如下，图纸上的要求须遵循。 All thedesigndrawingscorresponding to the erection of ACCare listedas below,and must be plywith the requirements ofdrawings.无锡东盛石化装备有限公司图纸清单Wuxi DongshengPetrochemical EquipmentCo.,Ltd.DRAWING LIST图号序号图纸名称SL.No.DRAWING NAMEDRWING No.空冷凝汽器总体布置图1IND25.03.00GENERAL ARRANGEMENTOF AIR COOLEDCONDENSER空冷凝汽器柱脚载荷图2IND25.03.01AIR COOLEDCONDENSER LOADDATA-COLUMN空冷凝汽器10.5m平台载荷分布图3IND25.03.02AIR COOLEDCONDENSER LOADDATA ON10.5m FLOOR空冷凝汽器A架,挡风墙,风机桥与平台连接图4IND25.03.03INSERT DETAILSFOR A-FRAME,WIND WALL&FAN BRIDGEA架地脚螺栓详图4.1IND25.03.03.01A-FRAME FOUNDATION BOLT DETAIL挡风墙地脚螺栓详图4.2IND25.03.03.02WIND WALLFOUNDATIONBOLT DETAIL风机桥基础底板详图4.3IND25.03.03.03FAN BRIDGEINSERT PLATE DETAIL A架基础底板详图4.4IND25.03.03.04A-FRAME INSERTPLATEDETAIL空冷凝汽器风筒与平台连接图5IND25.03.04FAN RING&BIRD SCREENFIXING ASSEMBLY风筒与基础预埋件和连接螺栓详图5.1IND25.03.04.01INSERT PIPE&CONNECTION BOLTDETAIL OFFAN RING顺流管束总装配图6IND25.C3.00CONDENSER BUNDLEGENERAL ASSEMBLY逆流管束总装配图7IND25.D3.00DEPHLEGMATOR BUNDLEGENERAL ASSEMBLYA架装配图柱脚A8.1IND25.A3.1111A-FRAME FILE?A?A架装配图柱脚B8.2IND25.A3.1112A-FRAME FILE?B?A架装配图柱脚C8.3IND25.A3.1113A-FRAME FILE?C?A架装配图柱脚D8.4IND25.A3.1114A-FRAME FILE?D?WUXI DONGSHENGPETROCHEMICAL EQUIPMENTCO.,LTD.6/22空冷凝汽器安装指导书INSTRUCTION FORTHE ERECTIONOF THEAIR COOLEDCONDENSER无锡东盛石化装备有限公司Wuxi DongshengPetrochemical EquipmentCo.,Ltd.序号图纸名称SL.No.DRAWING NAME8.58.68.79.19.210.110.211.111.212.112.212.312.413141515.116171819图纸清单DRAWING LIST图号DRWING No.A架装配图柱脚ABSECONDARY AFRAME BETWEENA&BA架装配图柱脚BDSECONDARY AFRAME BETWEENB&DA架装配图侧面图A-FRAME ASSEMBLY-SIDE VIEW风机桥总装配图（两侧）FAN BRIDGEGENERAL ASSEMBLY（SIDE）风机桥总装配图（中间）FAN BRIDGEGENERAL ASSEMBLY（MIDDLE）蒸汽分配管装配图STEAM DISTRIBUTIONPIPE GENERALASSEMBLY不凝气出口汇集管NONCONDENSING STEAMOUTLET PIPEDETAIL检修平台梯子总装配图PLATFORM&HANDRAIL&LADDER1检修平台梯子总装配图PLATFORM&HANDRAIL&LADDER2挡风墙装配图近柱脚AWIND WALLNEAR TOFILE?A?挡风墙装配图近柱脚DWIND WALLNEAR TOFILE?D?挡风墙装配图近柱脚5WIND WALLNEAR TOGRID?5?挡风墙装配图近柱脚3WIND WALLNEAR TOGRID?3?冲洗装置总布置图CLEANING SYSTEMGENERAL ARRANGEMENT冲洗装置电气控制图CLEANING SYSTEMCONTROL BOX冲洗装置水泵基础及外形图CLEANING SYSTEMPUMP GENERALARRANGEMENT冲洗装置地脚螺栓详图CLEANING SYSTEMPUMP FOUNDATIONBOLTDETAIL风机防护网总装配图FAN BIRDSCREEN GENERALASSEBMLY风机总装配图FAN ASSEMBLY风筒总装配图FAN RINGASSEMBLY减速机总装配图FAN REDUCERASSEMBLY IND25.A3.1115IND25.A3.1116IND25.A3.1117IND25.B3.00s IND25.B3.00m IND25.P3.00IND25.P3.01IND25.M3.1130IND25.M3.1131IND25.W3.1240IND25.W3.1241IND25.W3.1242IND25.W3.1243IND25.L3.00IND25.L3.01IND25.L3.02IND25.L3.02.01IND25.S3.00WUXI DONGSHENGPETROCHEMICAL EQUIPMENTCO.,LTD.7/22空冷凝汽器安装指导书INSTRUCTION FORTHE ERECTIONOF THEAIR COOLEDCONDENSER2.空冷凝汽器安装指导INSTRUCTIONS FORTHE ERECTIONOF ACC2.1概述General2.1.1钢结构的安装、验收应符合GB50205-95钢结构工程施工及验收规范、图样技术要求及本文件的规定。 The erection and aeptanceof the steel structure shall meet with GB50205-95“Code forConstruction andAeptance ofSteel StructuralEngineering”and technicalrequirements in the drawings and specifications in the Instructions.2.1.2安装前，应按照图纸中构件明细表、箱件清单和装箱单核对进场的构件。 凡有标记或编号的构件在现场组装时应按标记或编号进行。 Prior to the erection,the ponentsdelivery to the siteshall be checked aording to thedetailed tablein the drawings,General Packing Lists andPackingLists.Any ponentswith marks or numbersshall beassembled aordingtothemarksornumbers in the field assembly.2.1.3钢结构安装前，应对各独立构件进行检查，对偏差（因运输及吊装等引起的）超过图样或有关标准规定的构件应予以矫正。 Prior tothe erection of steel structure,each independentponents shall becheckedand anyponents whosedeviation ismore thanwhat isspecified in the drawingsor by the relevantstandards(resulting fromtransportation andlifting)shall becorrected.2.1.4构件的安装程序，应根据图样技术要求及本文件的规定进行，必须确保结构的稳定性和不导致永久性的变形；构件安装宜采用扩大拼装法和综合安装法进行，尽量在地面预先焊接或拼装好。 The erectionprocedures ofsteel structure shall becarried outin aordance with thetechnical specificationsin thedrawingsand specificationsintheInstructions.The steadinessin steel structureshall be ensuredintheerection and the steelstructureshall be preventedfrom permanentdeforming.The step-by-step andprehensive proceduresare preferablyadopted insteelstructureerectionand the ponents shall bewelded andjointed inadvance beforeerection tothe maximumextent.WUXI DONGSHENGPETROCHEMICAL EQUIPMENTCO.,LTD.8/22空冷凝汽器安装指导书INSTRUCTION FORTHE ERECTIONOF THEAIR COOLEDCONDENSER2.1.5在现场组装、焊接等的质量要求均应符合GB50205-95及本文件的规定。 The qualityregarding field assembly,welding,etc.of theponentsshallmeet the requirements inGB50205-95andspecificationsintheInstruction.2.1.6钢结构在运输和安装过程中损坏的涂层部分以及现场安装连接处，应在构架安装完毕后补涂环氧富锌防锈底漆二度和银粉面漆一度(油漆等不属无锡东盛提供范围）。 The damagedcoated partof theponents inthe courseofthetransportation anderection,and thejoints infield assemblyshall becoated withgrey epoxyzinc richprimer painttwice andaluminum finishpaint onceafter theerectionofthesteelstructure(the paintsshall notbe suppliedby WXDS).2.2安装作业程序Sequences oferection work正常的安装作业程序如下The normalsequence oferection workis asbelow:2.2.1基础检验Checking the foundation2.2.2安装作业程序Sequences oferection worka)风机桥安装。 Installation ofFan Bridge.b)导风筒和鸟网在水平地面上组装。 Fan Ringand BirdScreen assembled at ground.c)A形部件在水平地面上组装。 A-Shape partsassembledatground.d)导风筒和鸟网吊装和安装。 Fan Ringand BirdScreen lifting and installation.e)A形部件吊装和安装。 A-Shape partsliftingandinstallation.f)A架其它部件的安装。 Installation anotherparts ofA-Frame erection.g)风机,减速机,电机的安装。 Fan,Fan Reducer(Gearbox),Motor assembly.h)A架间平台的安装。 Installation ofPlatform betweenA-Frame.i)管束的吊装和管板间，联箱间焊接。 Lifting andwelding bundles-Installation ofthe tubebundle onA-Frame,welding of tube sheetsand CatchmentHead.j)蒸汽分配管和不凝汽出口汇集管的安装和焊接。 Installation andwelding ofthe SteamDistributionPipeand Non-condensing SteamOutlet Pipe.k)平台,栏杆,梯子的安装。 Installation ofPlatform,Handrail andLadder.l)冲洗装置的安装。 Installation ofCleaning Systemm)挡风墙的安装。 Installation ofWind Wall.WUXI DONGSHENGPETROCHEMICAL EQUIPMENTCO.,LTD.9/22空冷凝汽器安装指导书INSTRUCTION FORTHE ERECTIONOF THEAIR COOLEDCONDENSER2.3基础检验Checking thefoundation2.3.1空冷凝汽器的基础由买受人提供，并应与用户一并对尺寸予以检验。 The foundation(civil works)are to be suppliedby thepurchaser,a dimensionalchecking will be performedjointly with the client.2.3.2基础的尺寸应遵从经买受人批准的无锡东盛的图纸。 They aretobein pliancewith thedimension shownon theWXDS drawingsas approvedby thepurchaser.2.3.3基础柱脚/平台的上平面必须水平，其最大允差为+0mm/-15mm。 地脚螺栓和预埋底板须根据图纸上的尺寸排布，且应是非常精确的。 The topsurface offoundation footings/slabs shall be leveledwithin maximumtolerance of+0mm/-15mm.Foundation bolts and insert plate must be arrangedaordingtothedrawingsand mustbe veryaurate.2.3.4安装前，特别要对基础作进一步复核并予以记录。 Prior totheerection，should berecheck thefoundation againandtheresults should be record.a)检查10.5米平台水平度。 Check thelevel of10.5m foundation floor.b)A架和挡风墙柱脚预埋底板的标高、水平度和预埋底板间的相对位置尺寸。 The elevation,level ofinsert platesand relativelocation between the insert plates ofA-Frame andWind Wall.c)风机桥预埋底板的标高、水平度和预埋底板间的相对位置尺寸。 The elevation,level ofinsertplatesand relativelocation betweenthe insertplates ofFan Bridge.d)A架和挡风墙的地脚螺栓位置尺寸。 The foundationbolt relativelocation ofA-Frame andWind Wall.WUXI DONGSHENGPETROCHEMICAL EQUIPMENTCO.,LTD.10/22空冷凝汽器安装指导书INSTRUCTION FORTHE ERECTIONOF THEAIR COOLEDCONDENSER e)导风筒的连接孔位置尺寸。 The connectiveholes relativelocation ofFan Ring.重要提示:IMPORTANT NOTE安装公司在承接安装任务前，必须保证基础的上平面是水平和平整的，并且须配备设备就位所需要的任何薄的垫板。 The erectormustprior toundertaking erection work-ensure that the topsurface offoundation istrue leveledand flat,and heshall providefor anyshims requiredto obtaina trueseating plan.2.4钢结构安装Structure erection2.4.1钢结构部件的储存和装配区域应位于安装区域（在起重机下）。 这个区域最好为薄的水泥地面便于卡车和起重机移动。 The storageand assemblingarea of structural partsshall belocated nearerection area(under thelifting deviceof crane).This areamustbegrouted fortrucks andcrane movement.2.4.2安装前，应认真参阅钢结构的图纸，钢结构件须出并且按设备要求用螺栓连接并检查。 Before undertakingerectionwork,the structural steel drawingshould beconsulted,the structuralpart should be pickedand boltingchecked in aordance withdevices.2.4.3组装的钢结构件要与起重设备的能力相一致。 The erectionstructuralsteelshould bemade in aordance withlifting devices.2.4.4首先，将钢结构零部件，诸如立柱、横梁、支撑等在地面上装配成较大部件，然后将之吊装到基础上。 First,assemble atground thelower partofthesteelstructure,such ascolumn,beans,bracings,and soon;then erectthese assembledparts on the civilwork.2.4.5立柱底板下应垫薄的垫板以使个主要的尺寸，如位置尺寸、标高、角度等符号图纸的要求。 WUXI DONGSHENGPETROCHEMICAL EQUIPMENTCO.,LTD.11/22空冷凝汽器安装指导书INSTRUCTION FORTHE ERECTIONOF THEAIR COOLEDCONDENSER Thecolumn shall be erectedwith shimsunder baseplates so as tohave theirmain dimensionsuch aslocation,elevation,angle,etc.exactly in aordance with the generaldrawing.2.4.6安装其他钢结构件，包括A架间的平台、栏杆、梯子等。 Installation theanother structuralpart,include platform,handrail andladder betweenA-Frame.WUXI DONGSHENGPETROCHEMICAL EQUIPMENTCO.,LTD.12/22空冷凝汽器安装指导书INSTRUCTION FORTHE ERECTIONOF THEAIR COOLEDCONDENSER2.5轴流风机系统安装Fan systemerection2.5.1风机桥须先于A架安装前吊装到基础平台上。 Fan bridgemustbe lifted on thefoundation floor priortotheerectionofA-Frame.2.5.2将导风筒和鸟网在相应安装位置底下的平地上组装好使之形成一个圆形体。 Assemble the fan rings and bird screen on the groundin order to obtaina cylinder,in thiscase,the fan ringsandbird screenare assembledin theirerection positionon theground.2.5.3调整导风筒的圆度，把紧螺栓和螺母，再次检查导风筒的圆度达到规定的要求。 Adjust the roundness ofthe fan ring,tightened thebolts andnuts,recheck theroundness ofthe fan ring againtill itmeet with the requirements.2.5.4调整导风筒的圆度时，可以用薄的橡胶垫片。 When adjust theroundnessofthefan ring,the thinnessrubber isavailable.2.5.5起吊导风筒和鸟网用螺栓固定在基础平台上。 调整导风筒的中心使之与基础的中心一致，把紧螺栓和螺母并对风筒的中心进一步检查直至符合规定的要求。 Lift upthefanring andbirdscreenand boltonthefoundationfloor.Adjust the center of fanringso as to meet with thecenter ofthefoundation,tightened theboltsandnuts,recheck thecenter offanringtill itmeetwith therequirements.2.5.6调整风机桥的中心使之与基础和导风筒的中心一致。 Adjust thecenter offan bridgesoasto exactlyin aordance with thecenter offoundation and fanring.2.5.7将减速机安装到风机桥的基础地板上。 Assemble thegearbox tothe baseplate offan bridge.2.5.8安装风机，详细见风机安装指导书。 Assembly thefan,details pleasesee thedocument aboutfan installation.2.5.9人工旋转风机叶片一周以上，检查叶片叶尖与导风筒的间隙是否均匀，如不符合要求WUXI DONGSHENGPETROCHEMICAL EQUIPMENTCO.,LTD.13/22空冷凝汽器安装指导书INSTRUCTION FORTHE ERECTIONOF THEAIR COOLEDCONDENSER则需调整风机及风机桥的中心。 Rotate thefan blademore thanone circuitmanually,check ifthe gapbetweenthefan bladeandfanring iswell-proportioned,if itis notmeetwith therequirements,must adjustthecenteroffanor fan bridge.2.5.10将风机桥与基础底板焊接牢固。 Weld thefanbridgetotheinsertplatestability.2.5.11将电机安装在减速机的顶部，调整电机和减速机。 Place themotor onthe topof gearbox,adjustthemotor withgearbox.2.5.12紧固风机系统的所有连接螺栓。 Tighten theall connectionbolts offan system.WUXI DONGSHENGPETROCHEMICAL EQUIPMENTCO.,LTD.14/22空冷凝汽器安装指导书INSTRUCTION FORTHE ERECTIONOF THEAIR COOLEDCONDENSER2.6管束吊装和焊接Lifting andwelding ofbundles2.6.1管束吊装时需用四个或六个由无锡东盛配备的吊耳。 The tubebundle shall beliftusing the four orsix lifting lug providedbyWXDS.2.6.2假如用四个吊耳安装，联箱端的两个吊耳需配备手拉葫芦，葫芦要根据管束的重量来配置。 用四根钢丝绳在水平位置起吊管束，然后通过手拉葫芦将联箱端缓慢下降直至管束与A架梁的角度相一致。 If usefour liftinglug,the twolifting lugsontheside of“catchment head”shallbe fitted with chain hoist which willbe chosen in aordancewiththe bundle weight.Lift thebundle withfour legslings inhorizontal positionthen descendthe catchment head sidewiththeassistance ofchain hoistup tothe angularof?A?cross beam.2.6.3假如用六个吊耳安装，管束两端的四个吊耳需配备手拉葫芦，葫芦要根据管束的重量来配置。 用六根钢丝绳在水平位置起吊管束，然后通过手拉葫芦将联箱端缓慢下降同时将另一端缓慢上升直至管束与A架梁的角度相一致。 WUXI DONGSHENGPETROCHEMICAL EQUIPMENTCO.,LTD.15/22空冷凝汽器安装指导书INSTRUCTION FORTHE ERECTIONOF THEAIR COOLEDCONDENSER Ifuse sixliftinglug,thefourlifting lugsat bothside ofbundle shallbefittedwithchain hoistwhichwillbechoseninaordancewiththebundleweight.Lift thebundle withsix legslings inhorizontal positionthen descendthe catchmenthead sideand increaseanother sidewiththeassistance ofchainhoistup tothe angularof?A?cross beam.2.6.4将管束吊装到A架上并用定位螺栓定位。 Put thebundle onA-Frame andbolt theupper screws.2.6.5所有管束吊装好后，调整所有管板使之在同一水平线上。 After erectionof allbundles inthe samebank,adjust alltube sheetsinthesame level.2.6.6将管板间焊接。 在焊接前，应将所有管口塞住避免垃圾和其他东西进入管束。 Welding alltube sheetstogether.Before startingthe weldoperation,all tubesshallbeplugged toavoid theperation ofdust andother matterinside thebundles.2.6.7将联箱焊接起来。 Welding allcatchment headstogether.2.6.8管板间或联箱间的焊接应按照焊接工艺规程进行，焊接后应做无损探伤。 Proceed atthe weldingoftube sheets orcatchmentheadinaordancewith weldingspecification andNon DestructiveTest forfieldassembly.WUXI DONGSHENGPETROCHEMICAL EQUIPMENTCO.,LTD.16/22空冷凝汽器安装指导书INSTRUCTION FORTHE ERECTIONOF THEAIR COOLEDCONDENSER WUXI DONGSHENGPETROCHEMICAL EQUIPMENTCO.,LTD.17/22空冷凝汽器安装指导书INSTRUCTION FORTHE ERECTIONOF THEAIR COOLEDCONDENSER2.7蒸汽分配管道和不凝汽出口汇集管安装和焊接Steam distribution pipe,Non-condensing steamoutlet pipeerectionandwelding2.7.1在地面上准备蒸汽分配管道和不凝汽出口汇集管，清理需要焊接的部位。 Prepare the steam distribution pipe and non-condensing steamoutlet pipeontheground.Cleaning theparts whereshould bewelding.2.7.2蒸汽分配管道检修平台在地面上安装就位，装配栏杆，然后焊接。 The platformwillbeplaced onthe sectiononfloor;equipped withhandrail,then welding.2.7.3将随蒸汽分配管道发运的封板焊接到管板上。 Weld thesealing stripswhich deliverywiththesteam distribution pipe tothe tube sheets.2.7.4针对蒸汽分配管道安装的所有操作，应在管板的两侧以蒸汽分配管道的全长搭建脚手架，以使工作人员行走并保护翅片。 For allthe operationsconcerning thefitting of steam distribution pipe sections,scaffolding willbe positionedon bothsides oftubesheets,on alllength ofsteam distributionto allowthe circulationof staffandtheprotection offins oftubes.2.7.5吊装蒸汽分配管道到管板上，进行调整和对准，此时蒸汽分配管道应一直被起重机吊住。 Place steam distributionpipeon tubesheets,do theadjustment andthe aiming of partalways holdbythehoist crane.2.7.6吊装不凝汽出口汇集管到逆流管束上，进行调整和对准。 Place non-condensing steamoutlet pipeon dephlegmatorbundles,do theadjustment andaiming.2.7.7焊接蒸汽分配管道和不凝汽出口汇集管。 Weld steam distributionpipe and non-condensing steamoutlet pipe.2.7.8在焊接以及调整和对准蒸汽分配管道到管板时，应将所有管口塞住避免垃圾和其他东西进入管束。 WUXIDONGSHENGPETROCHEMICALEQUIPMENTCO.,LTD.18/22空冷凝汽器安装指导书INSTRUCTION FORTHE ERECTIONOF THEAIR COOLEDCONDENSER Beforewelding andaimingofsteam distributionpipe sectionswiththetubesheets,all tubesshallbeplugged toavoid theperation ofdust andother matterinside thebundles.2.7.9蒸汽分配管道和不凝汽出口汇集管的焊接应按照焊接工艺规程进行，焊接后应做无损探伤。 The weldingofsteamdistributionpipe andnon-condensing steamoutlet pipeshouldbeinaordancewith weldingspecification andNon DestructiveTest forfieldassembly.2.7.10在对焊接试验后，应对蒸汽分配管道进行彻底的清理，在移去脚手架前对蒸汽分配管的外部进行油漆。 After positivetest ofwelding,proceed toa perfectcleaning ofsteamdistributionpipeandexternal paintsbefore removalof outsidescaffoldings.2.7.11对蒸汽分配管道的内部进行彻底的清理，临时关闭人孔。 Cleaning theinternal ofsteamdistributionpipeandtemporarily closingof manholes.2.7.12安装基础平台至蒸汽分配管道平台间的梯子。 Installation th