水汽品质监督调试方案

BALCOEXPANSIONPROJECT1200MWTHERMALPOWERPLANTCOMMISSIONINGPROCEDUREPROCEDUREFORWATERSTEAMQUALITYMONITORINGANDIMPROVEMENT水汽品质监督调试方案（讨论稿DRAFTA）COMPLIEDBY编写REVISEDBY审核APPROVEDBY批准目录CONTENTS1目的PURPOSE2调试范围COMMISSIONINGSCOPE3调试前应具备的条件CONDITIONSSATISFIEDBEFORETHECOMMISSION4调试步骤COMMISSIONINGMETHODSANDSTEPS5安全注意事项SAFETYPRECAUTION6附录ADDENDA1目的PURPOSE为保证机组长期安全经济运行,在启动试运阶段必须对机组的水汽品质进行严格的化学监督。TOENSUREALONGTERMOFSAFEANDECONOMICALOPERATIONOFUNIT,CHEMICALSUPERVISIONMUSTBESTRICTLYCONDUCTEDTOTHEWATERANDSTEAMQUALITYDURINGSTARTINGUPANDTRIALOPERATIONOFUNIT2调试范围COMMISSIONINGSCOPE全热力系统的水、汽监督，取样加药系统机械部分的调试和投入，配合热控投入自动控制系统。WATERANDSTEAMSUPERVISIONFORTHERMALPOWERSYSTEMINCLUDINGWATERFLUSHING,SILICONPURGEOPERATION,COMMISSIONINGANDPUTINTOOFTHEMECHANICALPARTINSAMPLINGANDDOSINGSYSTEMANDTAKEPARTINWORKOFTHEAUTOMATICCONTROLSYSTEMOFSAMPLINGANDDOSINGSYSTEMOFUNIT3调试前应具备的条件CONDITIONSSATISFIEDBEFORETHECOMMISSION31对土建施工的要求REQUIREMENTSFORCIVILENGINEERING311水汽取样间、化验间、地坪、上下水、门窗、通风照明、内部粉刷、油漆等项工作按设计要求施工完毕。COMPLETETHECONSTRUCTIONOFGROUND,WATERSUPPLYANDDISCHARGE,DOORSANDWINDOWS,VENTANDLIGHTING,INTERNALWHITEWASHANDPAINTINGOFWATERANDSTEAMSAMPLEROOM312所有需要防腐的混凝土构筑物，地面、沟道、墙壁等按设计要求施工完毕，沟道清扫干净并盖好沟盖板。COMPLETETHECONSTRUCTIONOFGROUND,DITCHESANDWALLSOFALLTHECONCRETESTRUCTUREREQUIRINGANTICORROSIONASPERTHEREQUIREMENTOFDESIGNTHEDITCHESSHALLBECLEANEDUPWELLANDCOVEREDWITHTHESLABREADY313防腐完毕的中和池其质量应符合“火电施工质量检验及评定标准”（水处理及制氢装置篇）（以后简称验标）水54号要求，灌水试验要求24小时无渗漏。THEQUALITYOFTHENEUTRALIZATIONPOND,WHICHHASBEENFINISHEDWITHCORROSIONRESISTANCE,SHOULDBECONFORMEDTOTHERELATIVEREGULATIONSTHERESHOULDBENOLEAKAGEINFILLINGWATERTESTFOR24HOURS314化验间的试验平台施工完毕，上下水设施和电源插座齐全，化验间具备使用条件。COMPLETETHECONSTRUCTIONOFTESTPLATFORMINTHELABORATORYTESTROOM,COMPLETEWATERSUPPLYANDDISCHARGEFACILITIESASWELLASPOWERSOCKETS,THELABORATORYTESTROOMISSATISFIEDTHECONDITIONSFORUSING32对安装施工的要求REQUIREMENTSFORERECTION321取样架上的取样管、阀门、仪表安装无毕检查无误并校验合格。THEINSTALLATIONOFTHESAMPLINGTUBES,VALVESANDINSTRUMENTSONTHECOOLINGRACKANDSAMPLINGRACKHAVEBEENFINISHEDACCORDINGTOTHEDRAWINGS,CHECKEDANDADJUSTEDTOBEQUALIFIED322加药泵试转完毕。TRIALSRUNNINGOFTHEDOSINGPUMPSHAVEBEENFINISHED323按设计规定完成所有设备保温和油漆工作。THERMALINSULATIONANDPAINTINGOFTHEENTIREEQUIPMENTHASBEENFINISHEDACCORDINGTOTHEREQUIREMENTSOFTHEDESIGN324通讯设施按设计要求安装完毕，并能满足试运工作的需要。THEINSTALLATIONOFTHECOMMUNICATIONFACILITYHASBEENFINISHEDACCORDINGTOTHEREQUIREMENTSOFDESIGNANDMETTHEREQUIREMENTSOFTRIALOPERATION325在启动试运工作中热工（包括程控）机务等专业应有试运值班员，设备出现故障应能及时消除。THERESHOULDBEOPERATORONDUTYFORPROFESSIONOFTHERMALPOWERENGINEERINGCONTROLINCLUDINGPROGRAMCONTROLINTHECOURSEOFSTARTINGUPANDTRIALOPERATIONTOELIMINATETHEEQUIPMENTFAULTOCCURREDINTIME33对电厂生产准备的要求REQUIREMENTSTOTHEPREPARATIONOFPLANTOPERATION331参加试运工作的值班员应经培训考试合格,明了中压凝结水处理设备的特性,并能胜任本职工作。THEOPERATORONDUTYTAKINGPARTINTHETRIALOPERATIONSHOULDBESUBJECTTOTRAININGANDEXAMINATIONTOBEQUALIFIEDANDCOMPETENTTOHISWORK332试运操作人员应具备熟练操作技能，试运操作记录要及时准确无漏项。THEOPERATOROFTRIALOPERATIONSHOULDBESKILLFULINOPERATIONTHETRIALOPERATIONRECORDSHOULDBEONTIMEANDCORRECTWITHOUTOMISSION333化验分析仪器、仪表、药品、运行规程及记录报表准备齐全，化验间、操作间的桌椅备齐。PREPARATIONSOFTHEANALYTICINSTRUMENT,DEVICE,CHEMICALS,OPERATIONALREGULATIONANDRECORDINGFORMSFORLABORATORYTESTARECOMPLETETHELABORATORYTESTROOMANDOPERATIONROOMISAPPROPRIATELYEQUIPPEDWITHDESKSANDCHAIRS334按有关规定完成对设备、阀门上的命名编号，管道上的走向标记也应同时完成，并备好各种运行状况的标志牌。THEEQUIPMENTANDVALVESHAVEBEENLABELEDANDMARKEDTHEDIRECTIONOFFLUIDALLTHETAGPLATEFORVARIOUSOPERATIONSSHOULDBEINGOODPREPARATION335值班室应悬挂全厂热力系统图。THERESHOULDBETHERMALPOWERSYSTEMDIAGRAMINTHEDUTYROOM4调试步骤CONDITIONSMETHODSANDSTEPS41中低压给水系统的冷态冲洗WATERFLUSHINGOFMEDIUMANDLOWPRESSUREFEEDWATERSYSTEMS411冲洗前应首先对凝结水补充水箱、凝汽器热井、给水箱进行彻底的人工清理,然后进行除盐水冲洗。MANPOWERCLEANINGSHOULDBEFIRSTCONDUCTEDTHOROUGHLYFORTHECONDENSATESTORAGETANKANDCONDENSERHOTWELLPRIORTOTHEFLUSHINGANDTHENFLUSHWITHDEMINERALIZEDWATER上水方式主厂房化学除盐水母管来水凝结水补充水箱补充水泵凝汽器热井凝结水泵低加除氧器,凝汽器到高水位后进行下列循环冲洗THEWATERFILLINGROUTINGWATERFROMDMPCONDENSATESTORAGETANKCONDENSATETRANSFERPUMPCONDENSERCEPLPHEATERSDEAERATOR,ANDTHEFOLLOWINGFLUSHINGWILLBECONDUCTEDWHENTHECONDENSERREACHESTHEHIGHWATERLEVEL冲洗流程FLOWSEQUENCEOFFLUSHING凝汽器凝结水泵轴封冷却器低加5号低加排放口CONDENSERCEPGLANDSTEAMCONDENSERLOWPRESSUREHEATERSDISCHARGEDFROMNO5LPHEATEROUTLET凝汽器凝结水泵轴封冷却器低加除氧器给水箱给水箱放水管凝汽器热井。CONDENSERCEPGLANDSTEAMCONDENSERLOWPRESSUREHEATERSDEAERATORFEEDWATERTANKDISCHARGEPIPEOFFEEDWATERTANKCONDENSATERHOTWELL从凝结水泵出口取样,待水中铁、硅含量稳定后将水全部排净,再上水,直到水中铁200G/L,硅200G/L参考值,硬度10MOL/L参考值,该系统冲洗合格。DURINGTHEFLUSHINGOFCONDENSATESYSTEM,ITSHOULDDISCHARGETHEWATERCOMPLETELYANDTHENFILLWATERAGAINTOFLUSH,UNTILTHEIRON200G/LANDSILICON200G/LREFERENCEVALUEANDHARDNESS10MOL/LREFERENCEVALUETHESYSTEMISQUALIFIEDFORFLUSHING412在冲洗时应在凝结水出口加胺,控制冲洗水的PH9095。AMINESHOULDBEDOSEDATTHEOUTLETOFCONDENSATEPUMPDURINGTHEFLUSHINGTOCONTROLTHEPHOFTHEFLUSHINGWATERISBETWEEN909542高加及锅炉本体的冷态冲洗COLDFLUSHINGOFHPHEATERSANDBOILER421凝结水系统冲洗合格后,进行锅炉本体的冲洗。THEFLUSHINGOFHPHEATERSANDBOILERSHOULDBECONDUCTEDAFTERAQUALIFIEDFLUSHINGOFTHECONDENSATESYSTEM冲洗流程如下FLOWSEQUENCEOFFLUSHING给水箱给水泵高压加热器省煤器汽包水冷壁放水管定排扩容器地沟DEAERATORFEEDWATERPUMPHPHEATERSECONOMIZERDRUMWATERWALLBLOWDOWNPIPEOFBOILERPERIODICBLOWNDOWNFLASHTANKTRENCH以正常上水方式启动给水泵,给锅炉上水,上水至汽包高水位后，停止上水，开锅炉底部放水进行整炉放水，如此反复进行几次后，转为从锅炉疏放水管及排污放水,连续冲洗至炉水含铁量小于200G/L,锅炉冷态冲洗结束。STARTTHEFEEDWATERPUMPBYANORMALWAYANDSUPPLYWATERTOTHEBOILERDISCHARGETHEWATERFROMBLOWDOWNPIPEOFBOILERFLUSHTHEBOILERUNTILTHECONTENTOFIRONISLESSTHAN200G/LINTHEBOILERWATERTHEFLUSHOFBOILERISQUALIFIED注如果炉水较脏，要考虑整炉换水。连续冲洗与整炉放水相结合。NOTEIFTHEBOILERWATERISVERYDIRTY,MAYDISCHARGETHEWATERCOMPLETELYANDTHENFILLWATERAGAINTOFLUSHSYSTEM422同时投入给水加胺设备，控制冲洗水PH为9095，AMINEALSOSHOULDBEDOSEDATTHEOUTLETOFCONDENSATEPUMPDURINGTHEFLUSHOFTHEBOILERTOCONTROLTHEPHOFTHEFLUSHWATERISBETWEEN909543锅炉的热态冲洗HOTFLUSHINGOFBOILER锅炉的热态冲洗指点火后的冲洗,锅炉点火前应具备的条件是THEHOTFLUSHOFBOILERSHALLBECONDUCTEDAFTERIGNITIONTHECONDITIONSSHOULDBESATISFIEDBEFORETHEBOILERIGNITION取样架及水、汽各点的取样器、冷却器能正常投入运行,取样疏排水处于正常状态。THESAMPLINGRACKANDSAMPLERANDCOOLERINEACHWATERORSTEAMPOINTCOULDBEPUTINTOOPERATIONNORMALLYTHEWATERDRAINAGEANDDISCHARGEOFSAMPLINGSHOULDBEINANORMALCONDITION炉水磷酸盐加药系统冲洗,分部试运完毕,并能投入正常运行,准备1000KG磷酸三钠。BOILERWATERPHOSPHATEDOSINGSYSTEMISFLUSHED,FORWHICHTRIALOPERATIONHASBEENFINISHED,ANDCOULDBEPUTINTOOPERATIONNORMALLY1000KGNA3PO4SHOULDBEPREPAREDWELL取样架上能够进行手动取样,并对取样管道进行冲洗。MANUALSAMPLINGCANBECONDUCTEDONTHESAMPLINGRACKFLUSHTHESAMPLINGPIPE431点火后启动加药系统,给汽包内加入磷酸盐,控制磷酸盐的浓度为210MG/L,开锅炉连排,至炉水取样铁含量小于200G/L,二氧化硅200G/L参考值,硬度10MOL/L参考值时,热态冲洗结束。在热态冲洗过程中,同时要监督除氧器出口、和凝结水的铁、二氧化硅和PH。STARTTHEDOSINGSYSTEMAFTERIGNITIONANDDOSEPHOSPHATETOTHEDRUMTOCONTROLTHECONCENTRATIONOFTHEPHOSPHATEBETWEEN2AND10MG/LOPENTHECONTINUOUSANDPERIODICBLOWNDOWNANDTHEHOTFLUSHINGSHOULDBEFINISHEDUNTILTHECONTENTOFIRONISLESSTHAN200G/L,THATOFSIO2IS200G/LREFERENCEVALUEANDHARDNESS10MOL/LREFERENCEVALUEINTHESAMPLEWATERINTHECOURSEOFHOTFLUSH,THEIRON,SIO2ANDPHATDEAERATOROUTLETANDINCONDENSATESHOULDALSOBESUPERVISED432热态冲洗过程中控制给水的PH9095联氨100150G/L。CONTROLTHEPHBETWEEN9095ANDTHEHYDRAZINEBETWEEN100150G/LOFFEEDWATERDURINGTHEHOTFLUSHING44蒸汽吹管期间的汽水品质监督SUPERVISIONOFWATERANDSTEAMDURINGBOILERSTEAMBLOWING441锅炉吹管阶段除氧器只能投入低压运行,所以应控制给水的联氨加药量为100150G/L,同时要加胺控制PH995。THEDEAERATORCOULDONLYBEPUTINTOLOWPRESSUREOPERATIONDURINGBOILERSTEAMBLOWINGOFBOILERASARESULT,THEHYDRAZINEADDEDTOTHEFEEDWATERSHOULDBECONTROLBETWEEN100150G/LADDTHEAMINETOCONTROLTHEPHBETWEEN995ATTHESAMETIME442炉内采用磷酸盐处理方式,炉水磷酸盐浓度控制在210MG/L。THEWAYOFPHOSPHATETREATMENTISAPPLIEDINSIDETHEBOILERANDTHECONCENTRATIONOFPHOSPHATEINBOILERWATERSHOULDBECONTROLLEDBETWEEN210MG/L443在此阶段的整个过程中,应尽量提高除氧器运行参数,以减少给水中的溶解氧,降低热力系统的腐蚀。DURINGTHEWHOLEPROCESSOFTHISPERIOD,THEOPERATIONALPARAMETERSSHOULDBERAISEDASHIGHASPOSSIBLETOREDUCETHEDISSOLVEDOXYGENINTHEWATERANDCORROSIONOFTHERMALCYCLESYSTEM444加强锅炉连续排污,在运行条件允许的条件下进行定期排污,尽量在吹管阶段净化部分热力系统。STRENGTHENTHECONTINUOUSBLOWDOWNOFTHEBOILERCONDUCTTHEPERIODICBLOWNDOWNINCASETHEOPERATIONALCONDITIONPERMITTEDTAKEEFFORTSTOCLEANPARTOFTHETHERMALPOWERSYSTEMINTHESTAGEOFSTEAMBLOWOUT445每次吹管前后应检查炉水外观和含铁量,当炉水含铁量大于3000G/L时或炉水混浊时,应在吹管间歇期间以带压热炉放水方式进行整炉放水,降低其含铁量。THEAPPEARANCEANDCONTENTOFIRONOFTHEBOILERWATERSHOULDBECHECKEDBEFOREANDAFTEREACHBOILERSTEAMBLOWINGTHEWHOLEBOILERWATERDISCHARGINGSHOULDBECONDUCTEDBYMEANSOFHOTBOILERWATERDISCHARGINGWITHPRESSUREATTHEINTERVALOFBLOWINGPIPETOREDUCETHECONTENTOFIRONWHENITISMORETHAN3000G/LINTHEBOILERWATERORTHECOLOROFBOILERWATERISDARK446吹管阶段,除炉水、给水、主汽手动取样外,取样架上其它取样门均应关闭。EXCEPTTHEMANUALSAMPLINGOFBOILERWATER,FEEDWATERANDMAINSTEAM,ALLOTHERSAMPLINGVALVESHOULDBECLOSEDINTHESTAGEOFSTEAMBLOWING447每次取样前,都要打开取样排污门冲洗3分钟,然后再取样。THESAMPLINGBLOWDOWNVALVESHOULDBEOPENEDANDFLUSHEDFORTHREEMINUTESBEFOREEACHTIMEOFSAMPLINGANDTHENMAKESAMPLES448锅炉吹管后,应将凝汽器热井和除氧器箱内的水放尽，并仔细清扫容器内的铁锈和杂物。DISCHARGETHEWATERINCONDENSATERHOTWELLANDFEEDWATERTANKUNTILEMPTYANDCLEANTHEIRONRUSTANDIMPURITIESAFTERTHECOMPLETIONOFBOILERSTEAMBLOWING449吹管结束后,根据锅炉运行规程的要求,进行热炉放水,恢复系统时,应根据现场条件许可对锅炉进行干法或湿法保护。WHENTHESTEAMBLOWINGCOMPLETED,CONDUCTTHEWATERDISCHARGINGOFHOTCONDITIONASTHEPRESSUREINTHEDRUMCOMINGDOWNTO0608MPACONDUCTTHEDRYORWETPRESERVATIONFORTHEBOILERBASEDONSITECONDITIONSDURINGTHESYSTEMISNORMALIZED45整套启动时的水汽监督WATERANDSTEAMSUPERVISIONINTHECOURSEOFTURBINE/GENERATORSTARTINGUP机组启动前以下条件必须被满足CONDITIONSSHOULDBESATISFIEDBEFORETHEUNITSSTARTINGUP451取样架上所有分析仪表能够投入正常运行,温度自动调整正常投入,导电度表前需加的阳树脂全部加好,所有监督仪表及记录仪表能投入运行。ANYANALYTICINSTRUMENTONTHESAMPLINGRACKCOULDBEPUTINTONORMALOPERATIONTHETEMPERATUREPROTECTIONDEVICECOULDBEPUTINTONORMALOPERATIONALLTHECATIONRESINREQUIREDBEFORETHECONDUCTIVITYANALYZERSHOULDBEADDEDWELLANYSUPERVISINGINSTRUMENTANDRECORDINGINSTRUMENTCOULDBEPUTINTOOPERATION452除氧器能投入正常运行。THEDEAERATORCOULDBEPUTINTOOPERATION453热力系统和锅炉必须在冲洗合格时,才允许机组整套启动。THEBOILERANDTURBINE/GENERATORSHALLBEPERMITTEDTOSTARTUPWHENTHEFLUSHINGOFBOILERANDSTEAMSAMPLINGAREQUALIFIED454整套启动期间应对给水蒸汽及凝结水进行严格的质量监督,在机组并网前不合格的凝结水不能进行回收,经凝结水系统的临时排放管将凝结水排放掉,由补充水泵补水至除氧器。当凝结水含铁量1000G/L时,可以进入精处理进行回收。DURINGTHENORMALSTARTINGUPOFUNIT,THEFEEDWATER,STEAMANDCONDENSATEWATERSHOULDBESUPERVISEDSTRICTLYTHEUNQUALIFIEDCONDENSATEWATERTHATCONCENTRATIONIRONMORETHAN1000G/LSHOULDNOTBERECOVEREDITSHOULDBEDISCHARGEDOUTPLANTANDTHENMAKEUPTHEDMWATERTODEAERATORVIACONDENSATETRANSFERPUMP455高加汽侧投运前要冲洗24小时以上。THESTEAMSIDEOFHIGHPRESSUREHEATERSSHOULDBEFLUSHEDWITH24HOURS456低加和高加水侧应视条件许可尽早投运,投运后应加强锅炉排污。THEWATERSIDEOFTHELOWPRESSUREHEATERSANDHIGHPRESSUREHEATERSSHOULDBEPUTINTOOPERATIONDURINGTHEPERIODOFFILLINGWATERFORTHEBOILERTHEBOILERBLOWNDOWNSHOULDBESTRENGTHENEDAFTERITISPUTINTOOPERATION457整套试运期间正常情况下视炉水水质连排的开度为3070。DURINGNORMALSTARTUPOFUNIT,THESTROKEOFCONTINUOUSBLOWNDOWNVALVESIS3070ASPERBOILERWATERQUALITYTHEPERIODICBLOWDOWNSHOULDBEOPENEDFOREVERY4HOURS458高低加疏水以不影响给水质量为条件进行回收。HEATERSDRAINWATERCOULDBERECOVEREDWHENITSQUALITYISQUALIFIED459整个试运阶段应经常打开取样排污门，对取样管进行冲洗。THESAMPLINGPIPESHOULDBEFLUSHEDAFTEREVERYSAMPLINGVIAOPENINGTHEBLOWNDOWNVALVEOFEVERYSAMPLINGPIPE4510取样架上仪表的投入前应将恒温装置全部调试好,待负荷稳定再投入监督仪表。CONSTANTTEMPERATUREEQUIPMENTSHOULDBEAVAILABLEBEFOREANALYSISINSTRUMENTCANBEPUTINTOOPERATIONWHENLOADISSTABILIZATION46洗硅运行SILICONPURGEOPERATION461在洗硅运行初期,由于凝结水不能回收，所以补给水系统仍然为补给水箱补给水泵除氧器，但这时除氧器已经投运，所以控制联氨加药量为3050G/L，同时给水加胺调节PH9095，加药点为除氧器下降管，但是当凝结水合格回收后,应立即改变补给水流程为补给水箱补给水泵凝汽器,并且投入凝结水加氨系统，调节凝结水的PH9095。THECHEMICALSUPERVISIONMETHODINTHESTAGEOFSILICONPURGEOPERATIONCARRYOUTTHESILICONPURGEOPERATIONAFTERTHEOPERATIONALCONDITIONSOFTHEUNITISSTEADYIFCONDENSATEWATERISNOTRECOVERY,THEMAKEUPWATERSYSTEMSHOULDBECONDENSATESTORAGETANKCTPDEAERATORBECAUSESINCETHEDEAERATORHASBEENPUTINTOOPERATIONATTHATTIME,THEHYDRAZINESHOULDBECONTROLLEDBETWEEN30AND50G/LANDTHEAMINESHOULDBEADDINGTOADJUSTTHEPHOFFEEDWATERBETWEEN90AND95,FORWHICHTHEDOSINGPOINTISTHEOUTLETWATEROFDEAERATORIFCONDENSATEWATERISRECOVERY,THEFLOWOFMAKEUPWATERSHOULDBECHANGEDTOCONDENSATESTORAGETANKCTPCONDENSERMEANWHILE,THEAMMONIASHOULDBEADDEDATTHEOUTLETOFTHECEPANDPHSHOULDBECONTROLLEDBETWEEN9095462洗硅初期和中期,在该阶段，炉水磷酸盐和二氧化硅的最大浓度在不同压力等级,可以取不同的值。INTHEINITIALANDINTERMEDIATESTAGESOFSILICONPURGE,THEMAXIMUMCONCENTRATIONOFPHOSPHATEANDSIO2INTHEBOILERWATERMAYVARYWITHTHEDIFFERENTPRESSURELEVELTHERELATIONBETWEENTHEMAXIMUMCONCENTRATIONOFSIO2INTHEBOILERWATERANDTHEBOILERPRESSUREISSHOWEDINTHEADDENDUM4“OPERATIONDIAGRAMOFSILICONPURGE”炉水磷酸根的控制浓度与锅炉压力的关系可以取以下数值THEVALUESBELOWCANBEADOPTEDFORTHERELATIONBETWEENTHECONCENTRATIONOFPHOSPHATEINTHEBOILERWATERANDTHEBOILERPRESSURETOBECONTROLLED锅炉压力MPA炉水磷酸根浓度MG/LBOILERPRESSURECONCENTRATIONOFPHOSPHATEINBOILERWATER102713161505418033463每个压力等级的开始阶段,磷酸根浓度可以取其上限值,但在后期向下一个等级进行前,磷酸根浓度不能超过下一个压力等级的上限值INTHEBEGINNINGSTAGEOFEACHPRESSURELEVEL,THEUPPERLIMITEDVALUEOFPHOSPHATECANBEADOPTEDBUTINTHEENDSTAGEANDBEFOREPROCEEDINGTOTHENEXTLEVEL,THECONCENTRATIONOFPHOSPHATESHOULDNOTEXCEEDTHEUPPERLIMITEDVALUEOFTHENEXTPRESSURELEVEL464炉水二氧化硅如果不能保持在限制值内时,应降压运行IFTHECONCENTRATIONOFSIO2COULDNOTBEMAINTAINEDWITHINTHELIMITEDVALUE,THEBOILERPRESSURESHOULDBEREDUCED465当炉水中二氧化硅达到下一压力等级二氧化硅限制值时,锅炉才能升压，升压后蒸汽二氧化硅要合格，否则也应降压运行。洗硅运行期间蒸汽二氧化硅应控制在不大于60G/KG。THEBOILERPRESSURECANBEINCREASEDONLYWHENTHECONCENTRATIONOFSIO2HASREACHEDTHELIMITEDVALUEOFTHATFORTHENEXTPRESSURELEVELAFTERTHEBOILERPRESSUREROSEUP,THESIO2INTHESTEAMSHOULDBEQUALIFIEDOTHERWISE,THEPRESSURESHOULDBEREDUCEDAGAINTHESIO2INTHESTEAMSHOULDBECONTROLLEDTOBENOTMORETHAN60G/KGDURINGTHESILICONPURGEOPERATION466凝结水硬度达到25MOL/L以下和含铁量小于1000G/L时,即可进行回收测定含硅量作为参考。THECONDENSATEWATERCANBERECOVEREDMEASURINGTHECONTENTOFSILICONASTHEREFERENCEWHENTHEHARDNESSISLESSTHAN25MOL/LANDTHECONTENTOFIRONISLESSTHAN1000G/L467高低加疏水以不影响给水质量为条件进行回收。THEDRAINWATEROFHIGHANDLOWPRESSUREHEATERSCANBERECOVEREDWHENTHEQUALITYOFFEEDWATERWILLNOTBEAFFECTED468锅炉压力向额定压力过渡并且炉水无硬度时,应开始采用低磷酸盐处理方式。洗硅运行阶段应加强锅炉连续排污,如有条件,可以进行整炉换水,尽量加快系统净化。LOWPHOSPHATEMETHODSHOULDBEAPPLIEDINCASETHEBOILERPRESSURETOBERAISEDTOTHERATEDPRESSUREANDTHEREISNOHARDNESSINTHEBOILERWATERTHECONTINUOUSBLOWNDOWNOFBOILERSHOULDBESTRENGTHENEDINTHESTAGEOFSILICONPURGECHANGINGTHEWATERINWHOLETHERMALCYCLESYSTEMCANBEADOPTEDTOSPEEDUPTHECLEANINGOFTHESYSTEMIFPOSSIBLE469整个试运阶段应经常打开取样排污门，对取样管进行冲洗。THESAMPLINGBLOWDOWNVALVESSHOULDBEOPENEDFREQUENTLYTOFLUSHTHESAMPLINGPIPEDURINGTHEWHOLEPERIODOFTRIALOPERATION4610取样架上仪表的投入前应将恒温装置全部调试好,待负荷稳定再投入监督仪表。COMMISSIONINGTHEENTIRECONSTANTTEMPERATUREEQUIPMENTWELLPRIORTOTHEPUTTINGINTOOPERATIONOFINSTRUMENTONTHESAMPLINGRACKPUTTHESUPERVISINGINSTRUMENTINTOOPERATIONWHENTHELOADISSTEADY5安全注意事项SAFETYPRECAUTION51严格根据仪表制造厂家的要求投入取样冷却装置。PUTTHECOOLINGRACKANDSAMPLINGRACKINTOOPERATIONACCORDINGTOTHEINSTRUCTIONOFMANUFACTURERSTRICTLY52应逐根冲洗取样管，不应同时冲洗两根以上。THESAMPLINGPIPESSHOULDBEFLUSHEDONEBYONETWOORMORESAMPLINGPIPEDTOBEFLUSHEDSIMULTANEOUSLYISNOTPERMITTED53设定好的加药泵安全阀的位置不容许改变。ITISNOTPERMITTEDTOCHANGETHEFIXEDVALUEOFSAFETYVALVEOFTHEDOSINGPUMPATWILL54取样架的冷却水要确保通畅，以免损坏仪表。ENSURETHESUPPLYOFTHECOOLINGWATERFORTHESAMPLINGRACKANDPREVENTTHECHEMICALANALYTICINSTRUMENTFROMDAMAGE55试运期间要加强对设备的巡视，以确保及时发现和处理问题。STRENGTHENTHEINSPECTIONOFEQUIPMENTDURINGTHETRIALOPERATIONANDDISPOSETHEPROBLEMSINTIMEIFFOUND56在运行期间，应做好设备间的通风。THEVENTILATINGEQUIPMENTSHOULDBESTARTEDUPDURINGTHEOPERATION57准备必要的急救药品，防止由于接触化学药品造成伤害。THEFIRSTAIDBOXWHICHISPREVENTEDTHECHEMICALSTOBEHARMFULHUMANBODYFROMINJURYSHOULDBEPREPAREDWELL注本措施部分条款可根据实际情况，加以修改。NOTESOMEITEMSOFTHISPROCEDURECANBEREVISEDASPERSPECIALSITUATION6附录ADDENDA附录1空负荷试运期间水汽质量标准WATERANDSTEAMQUALITYSTANDARDDURINGTHETRIALOPERATIONWITHOFFLOAD类别CLASSIFICATION项目ITEMS单位UNIT控制指标CONTROLINDEX化验间隔INTERVALOFLABTEST项目ITEMS单位UNIT控制指标CONTROLINDEX化验间隔INTERVALOFLABTEST溶解氧O2G/L402H铁FERRUMG/L1002H硬度HARDNESSMOL/L02HPH2588962H给水FEEDWATER联氨HYDRAZINEG/L10502HSIO2G/L802HSIO2G/L2502HPH259102H炉水BOILERWATER磷酸根PHOSPHATEMG/L2102H铁FERRUMG/L30012H蒸汽STEAMSIO2G/KG1002H钠SODIUMG/KG202H凝结水回收RECOVERYOFCONDENSATE铁FERRUMG/L10002H发电机冷却水COOLINGWATEROFGENERATOR电导率CONDUCTIVITY25S/CM22HPH256582H附录ADDENDUM2带负荷试运期间水汽质量标准WATERANDSTEAMQUALITYDURINGTHETRIALOPERATIONWITHLOAD类别CLASSIFICATION项目ITEMS单位UNIT控制指标CONTROLINDEX化验间隔INTERVALOFLABTEST项目ITEM单位UNIT控制指标CONTROLINDEX化验间隔INTERVALOFLABTEST溶解氧O2G/L30