循环流化床半干法烟气脱硫设计计算

循环流化床半干法烟气脱硫系统烟气量及成份特性计算FGDα′FGDα′′100q100B4−0α′00dααΔ+′d2α′d2α′′1FGDdααΔ+′′2d2dααΔ+′序号名称符号单位计算公式数值备注1实际燃煤量BT/h给定592固体不完全燃烧损失份额q4给定1.51锅炉参数FGDα′FGDα′′100q100B4−0α′00dααΔ+′d2α′d2α′′1FGDdααΔ+′′2d2dααΔ+′2固体不完全燃烧损失份额q4给定1.53计算燃料消耗量BcalT/h58.124锅炉飞灰份额αf,a给定955脱硫系统入口烟温℃给定128FGDα′FGDα′′100q100B4−0α′00dααΔ+′d2α′d2α′′1FGDdααΔ+′′2d2dααΔ+′5脱硫系统入口烟温T0℃给定1286脱硫系统入口过量空气系数给定1.93预除尘器入口7脱硫塔入口过量空气系数1.938脱硫塔出口过量空气系数1.93不考虑脱硫塔漏风FGDα′FGDα′′100q100B4−0α′00dααΔ+′d2α′d2α′′1FGDdααΔ+′′2d2dααΔ+′8脱硫塔出口过量空气系数1.93不考虑脱硫塔漏风9二级除尘器入口过量空气系数1.9810二级除尘器出口过量空气系数1.982脱硫系统计算所需物料成分参数FGDα′FGDα′′100q100B4−0α′00dααΔ+′d2α′d2α′′1FGDdααΔ+′′2d2dααΔ+′序号名称符号单位计算公式数值备注1收到基碳Car%给定852收到基氢Har%给定3.12.1锅炉燃料成分FGDα′FGDα′′100q100B4−0α′00dααΔ+′d2α′d2α′′1FGDdααΔ+′′2d2dααΔ+′ar3收到基氧Oar%给定8.74收到基氮Nar%给定0.455收到基硫Sar%给定0.6设计煤种6收到基灰分A%给定015FGDα′FGDα′′100q100B4−0α′00dααΔ+′d2α′d2α′′1FGDdααΔ+′′2d2dααΔ+′6收到基灰分Aar%给定0.157收到基水分War%给定21008收到基低位发热量Qnet.arkJ/kg给定180003燃烧产物容积及焓计算FGDα′FGDα′′100q100B4−0α′00dααΔ+′d2α′d2α′′1FGDdααΔ+′′2d2dααΔ+′序号名称符号单位计算公式结果备注3.1理论空气量及理论烟气量容积计算0V0N2V2ROVOH2V()FGDFGD21avααα′′+′=avα()0av0OHV10161.0V2−+α2ROrOH2rFGDing,VFGDoutg,V2SOV2COV22SOCOVV+FGDin,SO2Cdryg,V()0av0NROV1VV22−++αOHdryg,2VV+g,inVoutg,Vg,incalVB×outg,calVB×g,in60SO0SO1022VRTVpMg,inROVV2g,inOHVV22NV00N)1(79.0V2Vav−×+α222VVVoutO,Hdryg,SOSO×−+η符算公式1理论空气量Nm3/kg0.0889(Car+0.375Sar)+0.265Har-0.033Oar8.1082理论N2容积Nm3/kg0.79V0+0.8Nar/1006.4093理论H2O容积Nm3/kg0.111Har+0.0124War+0.0161V00.499理论CO容积3001866C0OH2V0V0N2VV4理论CO2容积Nm3/kg0.01866*Car1.5869.8143615025理论SO2容积Nm3/kg0.01866*0.375*Sar0.0040.0259791926理论RO2容积Nm3/kg1.5903.2脱硫系统燃烧产物的容积及成份计算0V0N2V2ROVOH2V()FGDFGD21avααα′′+′=avα()0av0OHV10161.0V2−+α2ROrOH2rFGDing,VFGDoutg,V2SOV2COV22SOCOVV+FGDin,SO2Cdryg,V()0av0NROV1VV22−++αOHdryg,2VV+g,inVoutg,Vg,incalVB×outg,calVB×g,in60SO0SO1022VRTVpMg,inROVV2g,inOHVV22NV00N)1(79.0V2Vav−×+α222VVVoutO,Hdryg,SOSO×−+η序号名称符号单位计算公式结果备注1平均过量空气系数1.932水蒸汽容积Nm3/kg0.62083.2脱硫系统燃烧产物的容积及成份计算0V0N2V2ROVOH2V()FGDFGD21avααα′′+′=avα()0av0OHV10161.0V2−+α2ROrOH2rFGDing,VFGDoutg,V2SOV2COV22SOCOVV+FGDin,SO2Cdryg,V()0av0NROV1VV22−++αOHdryg,2VV+g,inVoutg,Vg,incalVB×outg,calVB×g,in60SO0SO1022VRTVpMg,inROVV2g,inOHVV22NV00N)1(79.0V2Vav−×+α222VVVoutO,Hdryg,SOSO×−+η3N2容积Nm3/kg12.36676.519432494干烟气总容积Nm3/kg15.5405脱硫系统入口烟气总容积Nm3/kg16.161未计入脱硫喷水量0V0N2V2ROVOH2V()FGDFGD21avααα′′+′=avα()0av0OHV10161.0V2−+α2ROrOH2rFGDing,VFGDoutg,V2SOV2COV22SOCOVV+FGDin,SO2Cdryg,V()0av0NROV1VV22−++αOHdryg,2VV+g,inVoutg,Vg,incalVB×outg,calVB×g,in60SO0SO1022VRTVpMg,inROVV2g,inOHVV22NV00N)1(79.0V2Vav−×+α222VVVoutO,Hdryg,SOSO×−+η5脱硫系统入口烟气总容积Nm/kg16.161未计入脱硫喷水量6脱硫系统出口烟气总容积Nm3/kg16.735喷水量由热量平衡计算得到7脱硫系统入口烟气总容积Nm3/h939197.10V0N2V2ROVOH2V()FGDFGD21avααα′′+′=avα()0av0OHV10161.0V2−+α2ROrOH2rFGDing,VFGDoutg,V2SOV2COV22SOCOVV+FGDin,SO2Cdryg,V()0av0NROV1VV22−++αOHdryg,2VV+g,inVoutg,Vg,incalVB×outg,calVB×g,in60SO0SO1022VRTVpMg,inROVV2g,inOHVV22NV00N)1(79.0V2Vav−×+α222VVVoutO,Hdryg,SOSO×−+η8脱硫系统出口烟气总容积Nm3/h972526.49RO2容积份额0.09810H2O容积份额0.03843.8416469690V0N2V2ROVOH2V()FGDFGD21avααα′′+′=avα()0av0OHV10161.0V2−+α2ROrOH2rFGDing,VFGDoutg,V2SOV2COV22SOCOVV+FGDin,SO2Cdryg,V()0av0NROV1VV22−++αOHdryg,2VV+g,inVoutg,Vg,incalVB×outg,calVB×g,in60SO0SO1022VRTVpMg,inROVV2g,inOHVV22NV00N)1(79.0V2Vav−×+α222VVVoutO,Hdryg,SOSO×−+η10H2O容积份额0.03843.84164696911脱硫系统入口SO2浓度mg/Nm3741.80V0N2V2ROVOH2V()FGDFGD21avααα′′+′=avα()0av0OHV10161.0V2−+α2ROrOH2rFGDing,VFGDoutg,V2SOV2COV22SOCOVV+FGDin,SO2Cdryg,V()0av0NROV1VV22−++αOHdryg,2VV+g,inVoutg,Vg,incalVB×outg,calVB×g,in60SO0SO1022VRTVpMg,inROVV2g,inOHVV22NV00N)1(79.0V2Vav−×+α222VVVoutO,Hdryg,SOSO×−+η12脱硫系统出口SO浓度mg/Nm314320avarV306.1100A1×+−αgaf,ar100G100A××αaf,μFGDout,SO2C100100Aaf,ar××α()outg,60SOSO0SO101222VRTVpMη−()ing,0FGDVV121.0−′α()outg,0FGDVV121.0−′′αg3af,ar100V10010A×××α()300101×−dindCη()01outg,calVBVd×Δ+α()0201outg,calVBVVdd×Δ+×Δ+ααd2outg,Vd1outg,V12脱硫系统出口SO2浓度mg/Nm3143.213烟气重量Ggkg/kg21.436不含飞灰0avarV306.1100A1×+−αgaf,ar100G100A××αaf,μFGDout,SO2C100100Aaf,ar××α()outg,60SOSO0SO101222VRTVpMη−()ing,0FGDVV121.0−′α()outg,0FGDVV121.0−′′αg3af,ar100V10010A×××α()300101×−dindCη()01outg,calVBVd×Δ+α()0201outg,calVBVVdd×Δ+×Δ+ααd2outg,Vd1outg,V14飞灰浓度kg/kg0.00007/kg烟气15预除尘器入口飞灰量Gf,akg/kg0.00143/kg燃煤0avarV306.1100A1×+−αgaf,ar100G100A××αaf,μFGDout,SO2C100100Aaf,ar××α()outg,60SOSO0SO101222VRTVpMη−()ing,0FGDVV121.0−′α()outg,0FGDVV121.0−′′αg3af,ar100V10010A×××α()300101×−dindCη()01outg,calVBVd×Δ+α()0201outg,calVBVVdd×Δ+×Δ+ααd2outg,Vd1outg,V16预除尘器入口飞灰浓度Cd0ing/Nm30.0917脱硫塔入口飞灰浓度CFGDinmg/Nm388.180avarV306.1100A1×+−αgaf,ar100G100A××αaf,μFGDout,SO2C100100Aaf,ar××α()outg,60SOSO0SO101222VRTVpMη−()ing,0FGDVV121.0−′α()outg,0FGDVV121.0−′′αg3af,ar100V10010A×××α()300101×−dindCη()01outg,calVBVd×Δ+α()0201outg,calVBVVdd×Δ+×Δ+ααd2outg,Vd1outg,V17脱硫塔入口飞灰浓度CFGDinmg/Nm88.1818脱硫塔入口烟气含氧量OFGDin%9.809.798579850avarV306.1100A1×+−αgaf,ar100G100A××αaf,μFGDout,SO2C100100Aaf,ar××α()outg,60SOSO0SO101222VRTVpMη−()ing,0FGDVV121.0−′α()outg,0FGDVV121.0−′′αg3af,ar100V10010A×××α()300101×−dindCη()01outg,calVBVd×Δ+α()0201outg,calVBVVdd×Δ+×Δ+ααd2outg,Vd1outg,V19脱硫塔出口烟气含氧量OFGDout%9.4620一级除尘器出口烟气容积Nm3/h9960870avarV306.1