600MW机组给水处理加氧改造效益分析赵玲玲

　第30卷第4期2009年12月　　　　　　　　　　电　站　辅　机PowerStationAuxiliaryEquipment　　　　　　　　　Vol.30No.4Dec.2009　:1672-0210(2009)04-0004-04600MW赵玲玲,韦红旗(东南大学,江苏南京210096)　:给水加氧处理是一种氧化性运行方式,在机组节能降耗方面具有很大的优越性,针对该运行方式的特点和当前能源行业的发展趋势,结合某600MW超临界机组的给水加氧处理的特点,并从改造所产生的节能效益和经济效益的两个方面进行了分析总结,为给水加氧处理技术的推广应用提供有益的借鉴。:机组;给水;加氧;处理;改造;运行;节能;效益:TK227.8　　　　　　　:AEconomicAnalysisontheOxygenAdditionintotheFeed-waterfor600MWPowerUnitZHAOLingling,WEIHongqi(SoutheastUniversity,Nanjing,JiangsuProv.,210096,China)Abstract:Thefeed-watertreatmentofoxygenadditionisanoxidizedoperationalway,whichhasthesuperiorityofthepowerunitintheenergysaving.Basedonthefeaturesoftheoperationalwaysandthedevelopingtrendofpresentenergyindustry,combinedwiththefeaturesofoxygenadditionintothefeed-waterfor600MWsuper-criticalpowerunit,ananalysisandasummaryofthetreatmenthavebeendescribedinthepaperonboththeenergysavingandeconomicprofitsoastoprovideausefulreferencetopopularizethetechniqueofoxygenaddition.Keywords:powerunit;feed-water;oxygenaddition;treatment;reformation;operation;energysaving;profit:2009-08-03　:2009-11-19:(1984-),,,,。　　1　　、。,,,,(AllVolatileTreatment,AVT)。AVT,(OxygenatedTreatment,OT),,,[1～3],,。,600MW,AVTOT,,。2　2.1　,,(NeutralWaterTreatment,NWT)4600MW机组给水处理加氧改造效益分析电站辅机总第111期(2009No.4)。、、、,、、[3]。1988,,、、、,OT[1,4,5]。,、、OT[6]。2.2　。,,,Fe3O4“”Fe2+Fe2O3,Fe2O3Fe3O4,(Fe2O3),Fe2+,。Fe2O3[7,8]::Fe2++3OH--eFeOOH+H2O　　　2FeOOHFe2O3+H2O:14O2+12H2O+eOH-:Fe2++14O2+2OH-=12Fe2O3+H2O,Fe2O3,,。2.3　AVT,,OT,AVT。:(1)Fe2O3,,,;(2),,;(3),,;(4)pH,,,,。3　600MW630MW649.9MW。、、,SG1913/25.40-M950。、、、、,N630-24.2/566/566。,4。,3,。,+,100%,+。、(AVT(R))OT。,2007AVT(O),AVT(R)。AVT,。,2008。,。1。1　5电站辅机总第111期(2009No.4)　4　OT,。,,,。。(1);(2);(3);(4);(5)。4.1　(1)OT,141。40、15、10,,65。,,:(4×65-65)÷4=48.75/。(2)AVT,pH8.8～9.5,OT,pH8.0～9.0,,,。,,,。,630/54/,492/,:7t、6t,3500～3600/、1.7～1.8/,13/。(3),,,,5t25t,,61～2。200/,800～1000t,19600～12000t,9.6～12。,175t、50t,1500/、1000/,、16.25/。25.9～28.2/。(4),,。,2.5/,3/,20080.44/[9],3.8。,OT,、、、,1。1,91～94/,,1407～1444/。1　kW·ht////48.75750()/72.538.2()/610.5161.5/9600～120009.6～12147.7～184.6/7511.25173.1/50576.930000/1.3220.3//2.538.5//91～941407～14446600MW机组给水处理加氧改造效益分析电站辅机总第111期(2009No.4)4.2　(1),(、)。,()0.0245%,2(2),273/。2　(/)(/)2007107.51263.8392.12008114.57281.1417.9111.04272.5405.0　　(2),,,。(2),,,,,,。2　2—,,,,,,,,0.0365%,2,405/。,,,,678/。,,。4.3　OT,600MW,111,2104。,1407～1444/,68%,678/,1/3,,,2。,,。5　OT,AVT,。OT,、,,。:[1].、(CWT)[J].,2006,2:12-14.[2]Daniels,David.BoilerandFeedwaterTreatment:DotheRightThing(s)[J].Power,Sep1,2004:49-51.[3]KAWAINOBORU,TAKAKUHIROSHI,WADAKUNIHISA,etal.CorrosionCharacteristicsofCarbonSteelinSimulatedBoilerFeedwaterunderOxygenatedTreatmentConditions[J].CorrosionEngineering,2000,49(10):612-618.[4].(OT)[J].,1995,12:52-57.[5],.[J].,2004,37(11):47-52.[6].[J].,2001,14(6):57-60.[7],.[M].:,2003.137-148.[8].[J].,2005,29(6):24-26.[9].[EB].