热轧带钢层流冷却过程数学模型的参数化调优

34Vol13No14200412JournalofMaterialsandMetallurgyDec120041,1,1,1,2,1(11,110004;21,617062):,,.,,.:;;;;:TG335111:A:167126620(2004)0420303205ParameteroptimizationofmathematicmodelinlaminarcoolingcontrolsystemXIEHai2bo1,PENGLiang2gui1,HANBin1,ZHANGZhong2ping1,2,LIUXiang2hua1(11StateKeyLaboratoryofRollingandAutomation,NortheasternUniversity,Shenyang110004,China;21PGHSM,Panzhihua617062,China)Abstract:Heattransferinhotrollingstriplaminarcoolingsystemwasanalyzed.Accordingtothepracticalproductionstatus,parameterregressofaircoolingandwatercoolingmodelinlaminarcoolingmathematicsmodelwascarriedout.Theregressmethodcanmeetlocaleneed,andsatisfactorycontroleffecthasbeenattained.Keywords:hotrolling;strip;laminarcooling;model;parameteroptimize,.,,,.,.,,[13].,,,,.,,.,,.11111.,.,.3.,9,6,3:2004209206.:(50104004).:(1972-),,,,E2mail:hbxie@1261com;(1953-),,,,.1Fig11LayoutoflaminarcoolingsystemofHSM,12,,180,,,,,.12,34.112---..,.,.[4].11211,,,:air=136cpht+1(fdt+273115)3-273115(1),air,;;,W/(m2K4);,kg/m3;cp,kJ/(kg);h,mm;t,s;fdt,.,,,.=ah+b(2),a,b.ab.11212,:Ts=1000Lbnk3600vcph(Qs)(3),Lbnk,m;h,mm;,kg/m3;cp,kJ/(kg);v,m/s;Qs,kJ/(m2h);Ts,.Qs,f0.f0:f0=f1(c0+c1h+c2Wf+c3fdt+c4ct+c5w+c6v+c7(fdt-ct)+c8ll0v(4),c0c8,;f1();h,mm;Wf,mm;fdt,;ct,;w,;v,m/s;ll0,m.2211c0c8ab,,,,.[5].,.2.4033.20,20,,,3,.2Fig12Thegroupofstripthickness3Fig13Theindexofcontrolparameters3,2020=400,,.,,,.212,,(4)c0c8(2)ab.,IHFISG.,,,,,..(1)15%;(2)150;(3);(4)750350.(2)(4),.,f0.,,.2134.,,,,,ab,,c0c8,.4Fig14Theflowchartofstriptemperaturedrop5..21311,,,,,...ab6.5034:5Fig15Theflowchartoflocalcommissioning6Fig16Theflowchartofair2coolingregresscoefficient,PY401PY402,,PY401PY402,.,ab.1.7Fig17Theflowchartofcalculatingwatercoolingcoefficient1Table1Radiantcoefficientandaircoolingregresscoefficientofpartspecstrip/mm/ms-1/Q235B3141281068651235Q235B3160561674621193Q235B415175194756149Q235B418936114955145STW224143881442471224STW22Z1196691192911516STW22Z213258198380177STW22Z2162681655681701STW22Z3120971833581345abQ235B016101179445-01000221Q235B01570115882801000035Q235B014201093451-01000037Q235B01340106879801000004STW2201601136357-01000059STW22Z01540127297601000015STW22Z015101234303-01000025STW22Z014701176372-01000124STW22Z014601141979-010000416033213127,..,f0,c0c8,.38.(a)STW22(418mm,1263mm,550,40643902040),(b)Q235B(414mm,1265mm,640,40646801020),(c)P510L(419mm,1212mm,670,40644202080),(d)IF5Z(3195mm,1147mm,750,40650407020).,(PY401),PY402.,.8Fig18Measuredstriptemperaturecurveafterlaminarcooling4,,,.,.:[1]Henrich,HolzR,KneppeG.Physicallybasedcoolinglinemodeltomeetgrowingdemandsintemperatureandflexibility[J].IronmakingandSteelmaking,1996,23(1):79-81.[2]HitoshiNarita.Highprecisestriptemperaturecontrolbyusinggradualcooling[J].CAMPISIJ,1994(7):431-434.[3].[J].,1996,17(4):70-74.[4],,,.[A].2003[C].2003,(10):470-472.[5],,,.7034: