中板厂精轧机轧辊水冷却系统改造设计

(),,,,DesignandReconstructionofFinishingPlateMillRollWaterCoolingSysteminMediumPlateRollingPlantShiYixiang,YangGongben,GaoYanpingandSongChangrong(JinanIronandSteelGroupCorporation)AbstractThearticlesystematicallyanalysestherollwatercoolingsystemequipmentofmediumplatefinishingmill,reasonablyarrangetheequipment,properlyregulatewaterpressureandcontrolwaterflowinzones,whichena2blesuniformcoolingoftherolls,reducesthermalcrownandunevenwearovertherolls,prolongrollcampaignlifeandimproveplateshape.KeywordsRoll,Cooling,Thermalexpansion,Wear,Plateshape1,,2:1);2),;3),;4);5),,,11,;2,,,:1:T1/t=a{(2T1/z2)+2ht/cd(Ts-T1)-2hc/cd(T1-Tw)}(1)2:T2/t=a(2T2/z2)+2ht/cd(T2-Tw)(2):T1T212/;Tw/;Ts/;Ht/J/(hm2);/rad;/rad;hc,/J/(hm2);a/m2/h;c/J/(kg);/kg/m3;d/m;t/h;z8113420078WIDEANDHEAVYPLATEVol.13.No.4August2007/m112:T1(w/2,t)/z=T2(w/2,t)/t(3)T1(w/2,t)/z=T2(w/2,t)/t(4):w/m,:,TwTw:T1(z,0)=T2(z,0)=T(L/2,t)=Tw(5):L/m(1)(2),,(2):d=ad0(T12-Tw)(6):d0/m;d/m;/-12,,,(3)333.1,2030,,,,,,,,,;,,,,,,,3.2,,,,,3.3,,,,,914:,,0.30.5MPa,0.150.30m3/m2min,0.100.20m3/m2min,,3.4,,3040,,3.5,,,,,,,,,4,444.1159104.2,,,,4.3,4.4,:Z41H40/DN150,4.5,4.6,,5,,,,,,,,,1996,:2007-04-140213