402 PET熔体输送管道的工艺设计

PET(,211900)PET;();PETPETPET20100t/dPET11111PETPET,:=1Pnt-1Pno=kt(1):PnoPnttk,min-1t,min(1),PET(k)(t)PET(IV)IVIVIV,IVIVkt:IV=C(Mn)=C(PnS)(2),C,MnPETPnPETSPET,S=1921(2):Pn=1S(IVC)1,(1),IV=C/ktS+(CIV0)1(3),IV0PETIVtPETC=2.110-4=0.82IV0=0.640,ktIVIV111451996©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.1IVtkt/minIVk/105102030405060700.50.00240.00480.00720.00950.01190.01420.01881.00.00480.00950.01420.01880.02330.02770.03201.50.00720.01420.02100.02770.03420.04060.04682.00.00950.01880.02770.03630.04470.05280.06072.50.01190.02330.03420.04470.05480.06460.07403.00.01420.02770.04060.05280.06460.07580.08664.00.01880.03630.05280.06840.08300.09630.11005.00.02330.04470.06460.08300.10020.11630.13136.00.02770.05280.07580.09690.11630.13420.15087.00.03200.06070.08660.11000.13130.15080.16888.00.03630.06840.09690.12240.14540.16630.18539.00.04060.07580.10680.13420.15870.18070.200610.00.04470.08300.11630.14540.17120.19420.2148112IVPET,,,,,,IV,(),IV010202PET/%k105/min-1280308Zn(Ac)2(0.032)Sb2O3(0.017)1.68.9Zn(Ac)2(0.032)GeO2(0.018)1.59.1Mn(Ac)2(0.032)Sb2O3(0.017)0.96.7Mn(Ac)2(0.032)GeO2(0.018)0.85.7Ca(Ac)2(0.11)Sb2O3(0.017)0.34.3Ca(Ac)2(0.11)GeO2(0.018)0.64.8113,PETPET23,2PET(k),2k2PET114PETIV,k,(3)554©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,PETk,,,,:D2iLi4Qt-VPFL+VBP+VGP+VBL-NZQ,Dii,mLiDi,mQ,m3/ht,hVPFL,m3VBP,m3VGP,m3VBL-NZ,m32211,(3),3,(Pr);(Pf);(Pg),:P=Pr+Pg+Pf,(Pf)Pf,Pf,,Pf(),,Pg310MPaPET,,,:Pr=32ld2v:l,md,m,Ns/m2v,m/s33RT.QP.PFL.BP.SMX.SPB.212,,,3PET,:;651996©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.311PET,PET,280286,,312(1)115t/aHV452,P(MPa)T():P=2.0T(2)()44313,PET,,,PET,,,(1)(h)SiederTate4Nu(w)0.14=1.86(RePrDL)13(4)(w/),(NuRePr):Nu=hD/k(5)RePr=rCpvD/k(6)(4)(5)(6):D,mL,mk,kcal/mhh,kcal/mhr,kg/m3Cp,kcal/kg,m/hw,,(4)(5)(6):h=1.86(rCpk2DL)13(w)0.14(7)PET:r=1180kg/m3(287);Cp=0.485kcal/kg;k=0.075kcal/mh;w=3550(274);=2560(287)L=40(m),D=0.10(m),=55(m/h),(7):h=6.285kcal/m2h(2)KK=1/1n(D0D)+r(D0Dare)+1h(8):D0DDare;754©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.rh,rh,D0DDare,,K=h(3)1,PETCp=0.485kcal/kg,50t/d2083133(kg/h),1:Q=2083.330.485=1010.42(kcal/h)Q=KAareT:T=QKAare:T,Q,kcal/h,Q=1010.42K,kcal/m2h,K=6.285Aare,m2Aare=(D+12)L=(0.1+120.01)3.144012.62(m2)T=1010.426.28512.6212.7,1217,1,,,314,,,,4(5),,(6)61121114,;,720m50t/d(t)(P)()(d)851996©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.7(P)(v)(t)(d).(P)..(1)PET,7,,,,,(),(2),12MPaHV45290%,1417MPa,115,3min1..:,1982.1302..:,1986.84883..:,198113343404.:,19851145148166169(1995207211,1996209213)(43)27709N,380mmUS1405,,,,6,(2),(3)(2)(5),,(4),(4),(6),,2,,,5,,,,,,b,,,,,,(1996206227)954©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.