电站锅炉酸洗方案(中英文版)

第1页共30页目录1工程概述projectintroduction.........................................................................32酸洗目的Thepurposeofchemicalcleaning....................................................33酸洗范围Thescopeofchemicalcleaning.......................................................34酸洗方法Themethodologyofacidcleaning..................................................45编制依据Preparationreferences......................................................................46酸洗应具备的条件Prerequisitestochemicalcleaning..................................47化学清洗顺序Chemicalcleaningsequence....................................................98酸洗临时系统Temporaryfacilitiesforchemicalcleaning...........................159安全预防措施Safetyprecaution....................................................................1610化学清洗后的工作Workafterchemicalcleaning…………………………1811化学清洗后废水处理Chemicalcleaningwastetreatment.................1912锅炉清洗质量指标boilercleaningqualityindex…………………20附表1用于化学清洗的主要器具和设备mainequipmentandtoolsforchemicalwashing.......................................................................................21附表2估计清洗体积volumeintheequipment(Estimation)...............21附表3化学成分表ChecklistofChemical............................................22第2页共30页附表4化学清洗的除盐水预估量Demineralizedwaterestimationforchemicalcleaning.......................................................................................23附表5酸洗过程质量控制见证表Qualitycontroltableforacidprocess24附表6：化学清洗流程表FLOWCHARTCHEMICALCLEANINGBOILEREXECUTION.............................................................................25附表7：酸洗系统流程图FLOWCHEMICALCLEANINGBOILER.26附表8：阀门统计表LISTVALVESOPENANDCLOSESTATUBOILERCHEMICALCLEANING.........................................................................27附表9：LISTOFEQUIPMENTCHEMICALCLEANING..................28附表10：酸洗组织机构表Acidcleaningorganizationtable..............29附表11：重要危险因素清单Significanthazardfactorlist.................30第3页共30页#锅炉酸洗试验技术措施Thetechniquestatementof1#boilerchemicalwashing1工程概述projectintroduction印度尼西亚Sumsel-52×150MW坑口燃煤电厂工程，锅炉采用东方锅炉股份有限公司生产的循环流化床、一次中间再热、全钢结构、露天布置、自然循环汽包锅炉。MinemouthCFSPPsumsel-52X150MWprojectIndonesia,BoilerprovidedbyDongfangboilerco.,LTDisofcirculatingfluidizedbed,areheat,all-steelstructure,outdoorlayout,andnaturalcirculationdrumboiler.2酸洗目的Thepurposeofchemicalcleaning酸洗是为了清除附着在锅炉水管线或者蒸汽管线内表面的杂质，例如在设备生产或者安装过程中产生在内表面上的金属碎片，氧化物，油，灰尘和金属氧化物。以此来确保在锅炉运行中水和蒸汽的质量。这样就为产生保护性的涂层Fe3O4打好了基础。Fe3O4可以防止锅炉内部受热面进一步生锈。Thepurposeistocleartheimpuritiesfrominnersurfaceoftheboilerwater/steampipeline,suchasmetaldebris,oxide,oil,dust,andmetaloxideproducedininnersurfaceduringequipmentmanufacturingandinstallation,andtoensurethewaterandsteamqualityofboilerwaterduringoperationandtoapplyafoundationtogenerateprotectivecoatingofFe3O4thatcanpreventfurthercorrosionofinnersurfaceatinnerboilerheatingsurface.3酸洗范围Thescopeofchemicalcleaning清洗范围包括有：省煤器，水冷壁，降水管和汽包中心线以下的部分Thesystemwillbecleaningare:Economizer,Waterwall,Partsunderthecenterlineofthesteamdrum/downcomerpipe.4酸洗方法Themethodologyofchemicalcleaning采用HCL盐酸清洗工艺HCLcomplexationcleaningisadoptedforboileracidcleaning.第4页共30页5编制依据：Preparationreferences5.1《火力发电厂锅炉化学清洗导则》《ChemicalCleaningGuideforSteamPowerPlant》（DL/T-794-2012）5.2锅炉安装说明书（62J-AM）BoilerInstallationmanual(62J-AM)5.3锅炉范围内汽水系统图（62J711）Steam&WaterDiagram（62J711）5.4苏姆赛尔5合约sumsel5contract6酸洗应具备的条件Prerequisitestochemicalcleaning6.1.酸洗准备工作结束，保温完毕Preparatoryworkforacid-cleaningshallbecompleted,includinginsulation.6.2.除盐水设备/水处理设备在运行中Demineralizedwaterplant/Watertreatmentplantisinoperation.6.3.化水车间设备调试完Thedemineralizedwaterplant(DMP)hasbeencommissioned.6.4.启动锅炉已调试完Theauxiliaryboilerhasbeencommissioned.6.5.把两个直径为Ø50mm，厚度为20mm的将水管孔板放到汽包里。MakeorificeplatefortwomaindowncomerputinsideofsteamdrumwithdiameterØ50mm,platethickness20mm.6.6.临时系统已经做过1.0Mpa的压力试验；所有的测试结果均符合标准。Thetemporarysystemhasmade1.0MPapressuretesting;allthetestresultsareuptostandard.6.7.临时汽包水准仪已安装好；临时锅筒液面指示器在酸洗阶段使用。Thetemporarylevelgaugeofdrumhasbeeninstalled;thetemporarylevelindicatorofdrumisusedduringacidcleaningstage.第5页共30页6.8.在汽包液位线和地面化学清洗平台之间的可靠通讯设备和水位监测设备。Reliablecommunicationequipmentandwaterlevelmonitoringequipmentbetweendrumlevelpointandgroundlevelchemicalcleaningplatform.6.9.汽包内的旋风分离器在化学清洗期间不安装。Thecycloneseparatorinsidethedrumisnotinstalledduringchemicalcleaning.6.10.包含PH值9.5到10.0的NH3和N2H2的除盐水应被注入到过热器中。（在水压试验期间正常注入）ThedemineralizedwatercontainingNH3andN2H2withpH9.5to10.0shouldbefilledtosuperheater(NormallyfilledduringHydrostatictest)beforeChemicalCleaning.6.11.不要在省煤器给水管上安装止回阀。如果止回阀已安装，请打开。DonotinstallTheCheckValveonthefeedwaterpipeoftheEconomizer,orenforceopenthecheckvalveifthecheckvalvehasbeeninstalled.6.12.关闭锅炉取样管道，加药管道的一次和二次阀门Closetheprimaryandsecondaryvalvesofboilersamplingtube,dosingtube6.13.应该先检查汽包内部，再开始化学清洗。TheinsideofsteamdrumshallbeinspectedpriorthechemicalcleaningstartedbyClient.6.14.直径为Ǿ2”的旁路管道应被安装在临时系统化学清洗泵的出口处（用于流速的调整）至少三片的测试板应被放在汽包内。ThebypasspipewithǾ2”willbeinstalledatchemicalcleaningpumpoutletoftemporarysystem(forflowrateadjustment),testplatewillbeputintheinsideof第6页共30页steamdrumatleast3pcs