瓦楞纸板生产线的蒸汽系统建模-杨皓

97:2010-05-08:(1967-),,,,瓦楞纸板生产线的蒸汽系统建模杨皓,杨小俊,张昌汉(,430068):通过对瓦楞纸板生产线瓦楞纸板生产工艺的分析,了解了瓦楞纸板生产线各机组加热单元原纸温度及湿度变化,对生产线加热单元建立了数学模型,计算了在不同工况下各机组蒸汽量,为瓦楞纸板生产线蒸汽系统设计及改造提供理论依据经过测试证明:瓦楞纸板生产加热模型,符合生产实际;合理设计蒸汽系统及优化结构,可以降低生产成本,提高生产效率,达到节能降耗的目的:瓦楞纸板生产线;饱和蒸汽;数学模型;蒸汽消耗量;节能降耗:TB486.2:A:1001-3563(2010)17-0097-04ModelingfortheSteamSystemofCorrugatedBoardProductionLineYANGHao,YANGXiao-jun,ZHANGChang-han(HubeiUniversityofTechnology,Wuhan430068,China)Abstract:Throughanalysisofcorrugatedboardproductionlineandproductiontechnology,thechangeinrawpapertemperatureandhumidityattheheatingunitofeachunitincorrugatedboardproductionlinewasunder-stood,mathematicalmodelforheatingunitoftheproductionlinewasestablished,thesteamquantityofeachu-nitunderdifferentconditionswascalculated,andtheoreticalbasiswasprovidedfordesignandtransformationofsteamsystemincorrugatedboardproductionline.Itisshownbytesting:themodelforheatinginproductionofcorrugatedboardconformstotheproductionpractice,reasonabledesignofsteamsystemandoptimizationofstructurecanlowerproductioncost,improveproductionefficiencyandreachtheaimofenergysavingandcon-sumptionreducing.Keywords:corrugatedboardproductionline;saturatedsteam;mathematicalmodel;steamconsumption;ener-gysavingandconsumptionreducing,,;,,,,,,15222131,5,13,,,,,,,,PACKAGINGENGINEERINGVol.31No.172010.099815Fig.1Modelforsteamheatingin5-layercorrugatedboardproductionline,22.11),8%2),,,3),,4),,,,,,,,2.2:;();;;;2.3:;;,5(g/m2)150/125/130/125/1502.4:;()2.5,(),,();()2200mm5,,,,;,121Tab.1Basicparametersofcorrugatedboardproductionline200m/min2250mm150g/m2125g/m28%10%10kg/cm220e59e22%6~8g/m2:21,,,,,9925-Tab.2Relationshipbetweendryingcylinderdiameterandtemperaturein5-layercorrugatedboardproductionline/mm/e/e/eI100020110145I42095105145320110110182325110110175325110110175420100110145I100020110145II100020110145II42095105145320110110182325110110175325110110175420100110145II10002011014531000421101751000501101751000201101754206272175420687217542093108175333Tab.3Parametersofheatingmodelforpre-adjusterT120eT2110eT0145e220bD1000mmV200m/minb20mmK168W/(m#K)Ww200g/m2:U,2,U,32Fig.2Heatingprincipleofpre-adjuster,,33Fig.3Heatingprocessofrawpaper3:,,,,,,3,,,:1)-,:t=(/360PD)/(v/60)(1)/(b)D/mv/(m#min-1)t/s22012000.5762)[1],:$T=($T1-$T2)/ln($T1/$T2)(2)PACKAGINGENGINEERINGVol.31No.172010.09100$T1$T2145e145e20e110e125e35e$T1-$T2$T1/$T2ln($T1/$T2)$T903.5711.27370.7013)[1],:A=(A2-A1)/ln(A2/A1)(3)A1A21m0.96/m2.25m6.78m27.07m2A2-A1A2/A1ln(A2/A1)A0.29m21.0430.0426.905m24)[4],:Q2=($tKAT)/(3600b)(4)$TKAtbQ270.701e1686.905m20.576h0.020m656.12kJ5)[4],:Q1=2550(Ww-Wd)+CpWd(T2-T1)(5)Ww/(kg#m-2)Wd/(kg#m-2)CpT1T2T2-T1Q10.8640.8641.7620e110e90e136.86kJ6),Q:Q=Q1/t#3600=136.86/0.576@3600=855375(kJ)t(1);Q1(5)7),:G=Q/ht=855375/2128.1=401.94kg/h(6)3.2kg/cm2,(6)ht,2128.1kJ/kg:200m/min,2250cm,(200g/m2)20e110e(),401kg:,,(4)(5),Q1Q2,,,,,,,EXECL,()41),,,,,2),,,,;,,,3)3000,,,,,,,:[1].[M].:,2005.[2]HowtoObtainaSteadyViscosity[J].MarkArzouma-nian.()[3]SteamUtilizationCourse[M].SpiraxsarcoCorp,2003.[4][M].:,2005.[5],.[K].:,2006.[6].Excel[M].:,2006.[7]MaterialsHandling[J].PaperBoardIndustry,2005.[8].[J].,2007(7).()[9]KOHLERHerb.AnAnalysisofHeatTransferandMois-tureManagementintheDoublebacker[C].[10].[J].,2010,(3).()