空分模拟，上塔和下塔的热平衡问题一直解决不了，哪位能具体指导一下。或者说一下思路。谢谢！ keyword文件： $ Generated by PRO/II Keyword Generation System <version 8.1> $ Generated on: Mon Aug 04 11:27:49 2008 TITLE PROJECT=exercise001, USER=llx DIMENSION METRIC, PRES=KPA, SPVVOL=M3/KG-MOL SEQUENCE SIMSCI COMPONENT DATA LIBID 1,NITROGEN/2,AR/3,OXYGEN, BANK=SIMSCI,PROCESS ASSAY CONVERSION=API94, CURVEFIT=IMPROVED, KVRECONCILE=TAILS THERMODYNAMIC DATA METHOD SYSTEM=SRK, SET=HIGHP KVAL(VLE) SRK 1,3,-0.01089,0,0 SRK 1,2,0,0,0 SRK 2,3,0.01697,0,0 METHOD SYSTEM=SRK, SET=LOWP, DEFAULT KVAL(VLE) SRK 1,3,-0.00694,0,0 SRK 1,2,0.0056,0,0 SRK 2,3,0.01574,0,0 STREAM DATA PROPERTY STREAM=RE-LP, TEMPERATURE=-181.15, PRESSURE=142, PHASE=M, & RATE(M)=100, COMPOSITION(M)=2,10/3,90 PROPERTY STREAM=FEED-LP-TOP, TEMPERATURE=-195.46, PHASE=M, & LFRACTION=0.9, RATE(M)=991.001, COMPOSITION(M)=1,99.64/ & 2,0.0036/3,0.00356, NORMALIZE PROPERTY STREAM=FEED-LP, TEMPERATURE=-187.82, PHASE=M, & LFRACTION=0.45, RATE(M)=3800.99, COMPOSITION(M)=1,0.5985/ & 2,0.0154/3,0.3861 PROPERTY STREAM=FEED, TEMPERATURE=-172.72, PRESSURE=595, PHASE=M, & RATE(M)=7022.02, COMPOSITION(M)=1,0.781/2,0.01/3,0.209 UNIT OPERATIONS COLUMN UID=HP PARAMETER TRAY=44,IO FEED FEED,44 PRODUCT OVHD(M)=LP-T, BTMS(M)=LP-B,3000, SUPERSEDE=ON CONDENSER TYPE=BUBB DUTY 1,1,,CONDENSER PSPEC PTOP=562, DPTRAY=23 PRINT PROPTABLE=PART ESTIMATE MODEL=CONVENTIONAL, REFLUX=3200 SPEC ID=COL1SPEC1, RRATIO, VALUE=3 VARY DNAME=CONDENSER TFLOW NET(V)=LP-HEAT,2 METHOD SET=HIGHP COLUMN UID=LP PARAMETER TRAY=69,IO FEED RE-LP,46/FEED-LP,16/FEED-LP-TOP,1 PRODUCT VDRAW(M)=LP-OUT,45,200, BTMS(M)=BOTTOM, OVHD(M)=LPN2, & 6999.98, SUPERSEDE=ON DUTY 1,69,,REBOILER DUTY 2,69,7.8,SIDEHC1 PSPEC PTOP=110, DPCOLUMN=40.53 PRINT PROPTABLE=PART ESTIMATE MODEL=CONVENTIONAL SPEC ID=COL2SPEC2, STREAM=LPN2,FRACTION, COMP=3,WET, & VALUE=0.0004 SPEC ID=COL2SPEC3, DNAME(KC/H)=SIDEHC1, DIVIDE, COLUMN=HP, & DNAME(KC/H)=CONDENSER, VALUE=-1 SPEC ID=COL2SPEC4, STREAM=BOTTOM,FRACTION, COMP=3,WET, & VALUE=0.996 VARY DNAME=REBOILER,SIDEHC1 VARY DRAW=LP-OUT PLOT PROFILE, XCOMPONENT=2,2/1,1/3,3/2,2, YCOMPONENT=1,1/3,3 TFLOW NET(L)=HP-HEAT,69 REBOILER TYPE=KETTLE METHOD SET=LOWP HX UID=HEAT-BALLENC HOT FEED=LP-HEAT, M=S9 COLD FEED=HP-HEAT, M=S8 CONFIGURE COUNTER OPER HICO=5 END 显示全部