锅炉烟气酸露点温度计算公式的研究

40520099BOILERTECHNOLOGYVol.40,No.5Sep.,2009:20081111:(1939),,,,:CN311508(2009)050011031.2,1,1,1(1.,264006;2.,200240):;;;:,,(),,,:TK229.6:A0,,,,,,11.1,(),(S),SO2,SO2Fe2O3V2O5()SO3,H2SO4,,,,,,,,,,,,,,SO3H2SO4,,SO3H2SO4,SO3H2SO4SO3H2SO4[4]:(1)Halstead:tsld=113.0219+15.0777lgVH2SO4+2.0975(lgVH2SO4)2(1)(2):tsld=20lg(VSO310-6)+a(2):a,5%,a=184;10%,a=194;15%,a=2011973,1976[1]101,():tp=tKOH+tp(3)tp=1253Sn/1.05yHAn(4):tp,;tKOHpH2O,40,ted,;Sn,Sn=103Sar/Qnet,1000(kcal)/kg,[1]:%103/(kcal/kg);An,An=103Aar/Qnet,1000(kcal)/kg,[1]:%103/(kcal/kg);yH,,0.9,yH,tp-1(3),:ted=-1.2102+8.4064H2O-0.47492H2O+0.010423H2O(5)(5),H2O,,,,:(1)SarAarQ,,SO2SO3H2SO4,(2),,,,(3),SO2SO31.2,,:tp=2003Sn/1.25yHAn(6)1973(3)(4),1976,,1000kJ/kg,,:Sn=1000(kcal/kg)4.1868SarQ(kcal/kg)4.1868=4.18681000(kJ/kg)SarQ(kJ/kg)Sn,kg1000kJ(4187kJ/kg),:Sn=1000(kJ/kg)SarQ(kJ/kg)(7)12534.1868=1251.6117=201.467200,,1.054.1868=1.23(1.2266),(6)1.25,(6),,,1.3,,(3)(4),(8),:ted=t0ed+3Szs1.05fhAzs(8):,py1.25,=121;py1.25,=129:[2]89(1614);[3]372(1342);(5)205(814);[4],(7)(8),,,(8),:(1),1.05fhAzs1.05fhAzs,(2)1.0515%,11,1.051.0510=1.63,1.0520=2.65,1.05100=131.5,,(3)215,:,(8)300MWCFB,1(3)(4):109.494.9114,(8):124.8123.3114.8(),,,,(),(8)(18847),(3)(4)1401.4tp,4:Atp=1253Sn/1.05yHAnBtp=201.53Sn/1.23yHAnCtp=201.53Sn/1.25yHAnDtp=1253Sn/(1.05yHAn)(1)4,,21Car/%Har/%Oar/%Nar/%Sar/%Mar/%Aa/%/%Vdaf/%Qnet/kJkg-1Qnet/kcalkg-1yH49.293.619.220.540.8211.7824.7410041.361911045640.924ABCDSn10000.824564=0.1797%10000.8219110=0.042909%10000.8219110=0.042909%10000.824564=0.1797%An100024.744564=5.42068%100024.7419110=1.29461%100024.7419110=1.29461%100024.744564=5.42068%tp/55.655.42554.39313.7712,,D,yHAn1.05,1.05,2,(),,(3)(4)(),(6)(),,,:[1].()[M].:,1976.[2],.()[M].:,1991.[3],,.()[M].:,2003.[4],.[J].,2003(6):31-35.[5].()[M].:,2007.DiscussiononCalculationFormulaeofBoilersAcidDwe2PointTemperatureofGasJIANGAn2zhong1.2,WANGGang1,SHIShu2yu1,ZHENGShan2he1(1.YantaiLongyuanPowerTechnologyCo.,Ltd.,Yantai264006,China;2.SchoolofMechanicalandPowerEngineering,ShanghaiJiaotongUniversity,Shanghai200240,China)(17)315,:9,SO2K0.85,7392.7,8930.395.68932.6,6,,(1),SO2SO3(2),(3),(4),(5)1973:[1].[J].,1997(6).[2].[J].,1998(1).[3](1973)[S].[4],.[M].:,2004.[5],.()[M].:,2003.[6](1998)[S].[7].[M].:,2000.[8].[M].:,2002.TheCalculationoftheGasAcidDew2pointinUtilityBoilerLIJun1,YANWei2ping1,GAOBao2tong2,LIChun3(1.KeyLaboratoryofConditionMonitoringandControlforPowerPlantEquipmentofMinistryofEducation,NorthChinaElectricPowerUniversity,Baoding071003,China;2.NorthChinaElectricPowerInstitute,Beijing100054,China;3.XinZhouPowerSupplyBureau,Xinzhou036000,China)Keywords:utilityboiler;fluegas;aciddew2point;calculationAbstract:Aprecisecalculationofaciddew2pointisveryimportantfordesignofutilityboilers,fluegassulfurremovalandtailheatingsurfacetransformation.Existingdocumentswhichdiscussedthecalculationofthedewpointarenottoomuch,thedeviationbetweentheresultofcalculationandsurveyingvaluearerelativelygreat.Inthispaper,basedonapowerplantburningcoalandtheactualoperatingconditions,itwasfoundthatthemainaffectfactorsofaciddew2pointcalculationbycontrastthemeasureddataandcalculationresults,andgivetherevisionformula,Ithasthecertainprojectapplicationvalue.(13)Keywords:boiler;aciddew2pointtemperatureofgas;thermalcalculation;calculationmethodAbstract:InChineseboilerindustry,thecalculationaboutboilerproperandboileraccessoryincludesthefollowingparts:onepartisconstitutedbyourcountryafterreformandopening2up,anotherisfromtheformerUSSRs(suchasthethermalcalculationofboilerunit),thelastoneisintroducedfromothercountriestechnologyandthispartislittlementionedindetail.Duringthework,itisfoundthattheformulaofaciddew2pointtemperatureofgasisnotexactinanumberofbooksandarticlesinmorethantwentyyears.Thispaperwillanalyzethispartandofferserviceforusers.71