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当前位置:首页 > 商业/管理/HR > 项目/工程管理 > 发电机内冷水水质控制理论计算及其应用李志成
ThecalculationintheoryandapplicationforqualitycontrolofgeneratorstatorcoolingwaterLiZhicheng,WangYinggao(NorthChinaElectricPowerResearchInstituteCo.,Ltd.,Beijing100045,China),(,100045)[]pH。,,pH,pH,。[];;[]TK223.5[]B[]1005-829X(2009)12-0076-04Abstract:pHandconductivityarethetwomostimportantparametersforthequalitycontrolofgeneratorstatorcoolingwater.TherelevantcurvebetweenpHandconductivityinalkalescentsolutionisputforwardtheoreticallythroughthermodynamiccalculationandsomeimpactivefactorsarediscussed.Thecorrectnessofthecurveisprovedbyactualapplicationexamples,offeringtheoreticalreferencetothequalitycontrolofgeneratorstatorcoolingwater.Keywords:statorcoolingwater;generator;alkalescence〔1〕,,,,pH,,pH8.0~9.0,〔2〕。,pH,,pH8.0~8.5,。pH,。,pH,。1pH,<2μS/cm,,〔3〕,、。,,。25℃1。pH,pH,pH。NaOH,(1):[H+]+[Na+]+2[Cu2+]=[OH-]+[HCO3-]+2[CO32-](1),,,Cu2+、HCO3-、CO32-,H+、Na+、OH-,(1)(2):[H+]+[Na+]=[OH-](2)(2)[H+]=10-pH,[OH-]=10-(14-pH),[Na+]=10-(14-pH)-10-pH。K=349.82×10-pH+198.0×10-(14-pH)+50.11×125℃H+Na+OH-1/2CO32-HCO3-NH4+/(10-4S·m-2·mol-1)349.8250.11198.07244.4873.42912200912IndustrialWaterTreatmentVol.29No.12Dec.,200976——2009-12,29(12)[10-(14-pH)-10-pH]。25℃NaOHpHK1。1,23,OH-Na+,H+。11,pH8.0~8.6,NaOH0.25~1.0μS/cm。pH7.0~8.5,pH,pH>8.5,pH,pH9.0,0.75μS/cm2.5μS/cm。22.1,,,。,,H2CO3*、HCO3-、CO32-,H2CO3*CO2H2CO3。,1。,CO2,pH。(3):[H+]+[Na+]=[OH-]+[HCO3-]+2[CO32-](3)(4)~(7):Ct=[H2CO3*]+[HCO3-]+[CO32-](4)[H2CO3*]=Ct×(1+K1/[H+]+K1K2/[H+]2)-1(5)[HCO3-]=Ct×([H+]/K1+1+K2/[H+])-1(6)[CO32-]=Ct×([H+]2/K1K2+[H+]/K2+1)-1(7)pH2。21~525℃0、1.0×10-6、5.0×10-6、1.0×10-5、2.0×10-5mol/LpH。2,<1.0×10-6mol/L,;>1.0×10-5mol/L,,pH8.6,2μS/cm,NaOH,1.0×10-5mol/L,。1.0×10-5mol/L,3。32、3pH,Na+、OH-,23,OH-,pH>8.55,OH-Na+。4HCO3-,,pH7~9,HCO3-。5、6H+、CO32-。2.2,。2pH3Ct=1.0×10-5mol/LpH,:1NaOHpH1—Ct=02—Ct=1.0×10-6mol/L3—Ct=5.0×10-6mol/L4—Ct=1.0×10-5mol/L5—Ct=2.0×10-5mol/L77——2009-12,29(12)4NaOHpH5pH,,。NaOHpH4。43、4,,pHNH4+Na+,pH,,41、2。2.3,,,,,(DO50μg/L)(DO2000μg/L),200~500μg/L。,pH,pH8.0~8.5,200~500μg/LpH71/7〔4〕。。2.4,、,,1~4pH。。,,pH,,,,;pH,。,,。,、、,。3:NaOH,,pH,pH8.0~8.5,0.25~0.90μS/cm。,1.0×10-5mol/L,,pH8.5,2μS/cm。,,。,NaOHpH,pH,NaOH,。:,,;,,。,“NLS-”,NaOH,pH,20,。pH8.2~8.6,0.5~1.1μS/cm,5μg/L,1.5a。5。5,pHNaOHpH。4pH78———————————————————————————————————————————————[](1979—),2005,,。:13693008903,E-mail:nceprilzc@sina.com。[]2009-07-30()ModelsofROmembraneelementsandROmembranesystemsJingDawei1,LuoHao2,JinYan3,WangSiliang3(1.MembraneCenter,TianjinInstituteofUrbanConstruction,Tianjin300384,China;2.BejingWellheadEnvironmentTechnologyCo.,Ltd.,Beijing100085,China;3.BeijingVontronEnvironmentTechnologyCo.,Ltd.,Beijing102249,China)1,2,3,3(1.,300384;2.,100085;3.,102249)[],,,,。[];;[]TU991.21[]A[]1005-829X(2009)12-0079-04Abstract:ThedifferenceoftheperformanceindexesofROmembraneelementsisintroduced,andthenecessityofestablishingtherunningmodelsofROsystemmodelswhichhavedifferentperformancesisdiscussed.ArunningmathematicmodelofasingleROmembraneelementisgiven.ThemathematicmodelsoftheserialandparallelROmembraneelementsareanalyzed,soastosetupacommonmathematicmodelforvarioustypesofROmembranesystemstructures.Keywords:ROsystems;mathematicmodels;simulatedsoftware、、,、3。,,3。,±15%,±0.5%,±10kPa;〔1〕。,,〔2〕。,,〔3〕,。,,2912200912IndustrialWaterTreatmentVol.29No.12Dec.,2009,,。[][1],,,.[J].,2004,24(6):17-19.[2]SchleithoffK,EmshoffHW.Optimizationoftheconditioningofgeneratorcoolingwater[J].VGBKraftwerkstechnic,1990,70(9):1-5.[3],.[M].:,2001:10-15.[4]SyrettB,SteinJ.Preventionofflowrestrictionsingeneratorstatorwatercoolingcircuit[R].TechnicalReport,B-9,2002.79——
本文标题:发电机内冷水水质控制理论计算及其应用李志成
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