燃煤电站锅炉热力计算表格

燃煤电站锅炉热力计算表格,,,,,

编号,项目,符号,数值,单位,公式及说明

1,基本数据,,,,

1.1,燃煤收到基成分,,,,

,Car,Car,43.370,%,

,Har,Har,2.730,%,

,Oar,Oar,7.830,%,

,Nar,Nar,0.450,%,

,Sar,Sar,1.220,%,

,Mar,Mar,23.000,%,

,Aar,Aar,21.370,%,

,挥发份,Vdaf,,%,

,低位发热量,"Qar,net","16,303.20",kJ/kg,"∵1卡=4.1868焦耳∴Qar,net=3893.95242189739kCal"

,灰变形温度,DT,,℃,

,灰软化温度,ST,,℃,

,灰熔化温度,FT,,℃,

,,,,,,

1.2,锅炉型号及参数,,,,

,锅炉型号,,,,锅炉厂资料

,锅炉额定蒸发量,Dsh,45.00,t/h,锅炉厂资料

,过热蒸汽温度,tsh,540.00,℃,锅炉厂资料

,过热蒸汽压力,Psh,9.81,MPa(g),锅炉厂资料

,过热蒸汽焓,hsh″,"3,477.04",kJ/kg,查水蒸汽表

,汽包工作压力,PH,11.70,MPa(g),锅炉厂资料

,不通过过热器的饱和蒸汽抽取量,Dss,0.00,t/h,锅炉厂资料

,饱和蒸汽的焓,hss″,"2,680.00",kJ/kg,查水蒸汽表

,排污率,αbl,2.00,%,"锅炉厂资料/参考取值[1]

以化学除盐水或蒸馏水为补给水的凝汽式电厂为1%

以化学除盐水或蒸馏水为补给水的供热式电厂为2%

以化学软化水为补给水的凝汽式电厂为2%

以化学软化水为补给水的供热式电厂为5%"

,饱和水的焓(排污水焓),h′,"1,479.00",kJ/kg,查水蒸汽表

,给水温度,tfw,200.00,℃,锅炉厂资料

,给水压力,Pfw,14.20,MPa(g),锅炉厂资料

,锅炉入口给水的焓,hfw,857.76,kJ/kg,查水蒸汽表

,其他利用热量,Qet,0.00,kJ/kg,锅炉厂资料

,锅炉效率,ηb,85.00,％,"锅炉厂资料/参考取值[1]

链条炉0.72～0.85

煤粉炉0.85～0.90

沸腾炉0.65～0.70

旋风炉0.85

CFB0.85～0.90"

,机械不完全燃烧损失,q4,2.29,％,"锅炉厂资料/参考取值[1]

固态排渣煤粉炉：烟煤2，贫煤3，无烟煤4

层燃炉：5～12

CFB：3～4"

,灰渣份额,αhz,40.00,％,锅炉厂资料

,飞灰份额,αfh,60.00,％,"锅炉厂资料/参考取值[1]

固态排渣煤粉炉0.9

液态排渣煤粉炉0.6～0.7

旋风炉0.1～0.15

链条炉0.1～0.15

抛煤机炉0.25

循环流化床炉0.4～0.6"

,灰渣中的含碳百分比,Chz,,％,锅炉厂资料

,飞灰中的含碳百分比,Cfh,,％,锅炉厂资料

,炉膛出口过剩空气系数,αl,1.20,／,"锅炉厂资料/参考取值[1]

煤粉炉1.2～1.25

层燃炉1.3～1.6

CFB1.2～1.25"

,炉膛漏风系数,Δαl,,／,锅炉厂资料/参考取值[1]

,空预器出口过剩空气系数,αpy,1.27,／,αpy=αky*(1+Kky/100)

,空预器漏风率,Kky,6.00,％,"锅炉厂资料/参考取值[1]

管式：D>50t/h每级0.03；D≤50t/h每级0.06

回转式：D>50t/h0.2；D≤50t/h0.25"

,空预器进口过剩空气系数,αky,1.20,/,锅炉厂资料

,空预器排烟温度,tpy,141.00,℃,锅炉厂资料

,含硫燃料燃烧后生成S02的份额,c,0.85,,"锅炉厂资料/参考取值[1]

链条炉取0.7～0.8

煤粉炉取0.85～0.9

旋风炉取0.9～0.95

流化床炉取0.85"

,,,,,,

1.3,其他参数,,,,

,当地大气压,b,101.00,kPa,按“各海拔相应的大气压”查得[1]

,送风机前冷空气温度,ta,20.00,℃,按“夏季通风室外计算温度”取用

,空预器出口至除尘器进口漏风系数,Δαpy′,0.03,／,钢烟道每10m长取0.01，钢烟道按30m估算[1]

,除尘器漏风系数,Δαc,0.02,／,除尘器厂家资料

,除尘器至引风机漏风系数,Δαpy″,0.03,／,钢烟道每10m长取0.01，钢烟道按30m估算[1]

,引风机至烟囱进口烟道漏风系数,Δαyc,0.00,／,微正压

,烟囱进口过量空气系数,∑Δα,1.35,／,∑Δα=αpy+Δαpy′+Δαc+Δαpy″+Δαyc

,锅炉除尘器效率,ηc,99.00,％,除尘器厂家资料

,接入同一座烟囱锅炉台数,X,2.00,台,

,炉内脱硫效率,ηSO2′,70.00,％,锅炉厂资料

,炉后脱硫效率,ηSO2″,0.00,%,脱硫厂资料

,总脱硫效率,ηSO2,70.00,,ηSO2=ηSO2′+（1-ηSO2′/100）ηSO2″

,钙、硫摩尔比,Ca/S,2.50,／,CFB炉内脱硫宜取2.5，炉外湿法脱硫宜取1.03

,石灰石纯度,KCaCO3,90.00,%,

,,,,,,

,,,,,,

2,燃烧计算和热平衡,,,,

2.1,计算燃料消耗量,Bc,"8,350.29",kg/h,Bc=B(100-q4)/100

,机械不完全燃烧损失,q4,2.29,%,

,锅炉最大连续蒸发量时的耗煤量,B,"8,545.90",kg/h,"B=100*[Dsh*(hsh″-hfw)+Dss*(hss″-hfw）+Dbl*（h′-hfw)+Qet]/(Qar,net*ηb)"

,锅炉额定蒸发量,Dsh,"45,000.00",kg/h,

,过热蒸汽焓,hsh″,"3,477.04",kJ/kg,

,锅炉入口给水的焓,hfw,857.76,kJ/kg,

,不通过过热器的饱和蒸汽抽取量,Dss,0.00,kg/h,

,饱和蒸汽的焓,hss″,"2,680.00",kJ/kg,

,锅炉排污水流量,Dbl,900.00,kg/h,

,饱和水的焓,h′,"1,479.00",kJ/kg,

,其他利用热量,Qet,0.00,kJ/kg,

,燃料低位发热量,"Qar,net","16,303.20",kJ/kg,

,锅炉效率,ηb,85.00,%,

,,,,,,

2.2,锅炉正平衡热效率,η1,85.00,%,η1=Q1/Qin

,1kg燃料送入锅炉的热量,Qin,"16,303.20",kJ/kg,"Qin=Qar,net+Qph+Qha"

,低位发热量,"Qar,net","16,303.20",kJ/kg,

,燃料的物理热,Qph,0.00,kJ/kg,

,用外部热源加热空气时带入的热量,Qha,0.00,kJ/kg,

,1kg燃料总有效利用的热量,Q1,"13,857.72",kJ/kg,Q1=[Dsh*(hsh″-hfw)+Dss*(hss″-hfw）+Dbl*（h′-hfw)+Qet]/B

,锅炉最大连续蒸发量时的耗煤量,B,"8,545.90",kg/h,

,锅炉额定蒸发量,Dsh,"45,000.00",kg/h,

,过热蒸汽焓,hsh″,"3,477.04",kJ/kg,

,锅炉入口给水的焓,hfw,857.76,kJ/kg,

,不通过过热器的饱和蒸汽抽取量,Dss,0.00,kg/h,

,饱和蒸汽的焓,hss″,"2,680.00",kJ/kg,

,锅炉排污水流量,Dbl,900.00,kg/h,

,饱和水的焓,h′,"1,479.00",kJ/kg,

,其他利用热量,Qet,0.00,kJ/kg,

,,,,,,

,,,,,,

3,烟风量计算,,,,

3.1,1kg燃料燃烧时所需理论空气量,V0,4.36,Nm3/kg,VO=0.0889(Car+0.375Sar)+0.265Har-0.033Oar

,Car,Car,43.37,%,

,Sar,Sar,1.22,%,

,Har,Har,2.73,%,

,Oar,Oar,7.83,%,

,,,,,,

3.2,1kg燃料燃烧时产生的理论烟气量VOg,V0g,4.93,Nm3/kg,VOg=VRO2+VON2+VOH2O

,1kg燃料燃烧时产生的理论烟气量VOg,V0g,4.93,Nm3/kg,VOg=1.866Car/100+0.7Sar/100+0.8Nar/100+0.79VO+0.0124Mar+0.111Har+0.0161VO

,碳和硫元素产生的二氧化物VRO2,VRO2,0.82,Nm3/kg,VRO2=0.01866Car+0.007Sar

,烟气中氮的含量VON2,VON2,3.45,Nm3/kg,VON2=0.008Nar+0.79V0

,烟气中水的含量VOH2O,VOH2O,0.66,Nm3/kg,VOH2O=0.0124Mar+0.111Har+0.0161V0

,Car,Car,43.37,%,

,Sar,Sar,1.22,%,

,Nar,Nar,0.45,%,

,1kg燃料燃烧时所需理论空气量,V0,4.36,Nm3/kg,

,Mar,Mar,23.00,%,

,Har,Har,2.73,%,

,,,,,,

3.3,进入系统的总空气量,Qj,"46,324.09",Nm3/h,Qj=Vznk+ΔVznk

,煤在炉膛燃烧所需总空气量,Vznk,"43,701.97",Nm3/h,Vznk=αlBcV0

,炉膛出口过剩空气系数,αl,1.20,／,

,计算燃料消耗量,Bc,"8,350.29",kg/h,

,1kg燃料燃烧时所需理论空气量,V0,4.36,Nm3/h,

,空预器总漏风量,ΔVznk,"2,622.12",Nm3/h,ΔVznk=（αpy－αl）BcV0

,空预器出口过剩空气系数,αpy,1.27,／,

,炉膛出口过剩空气系数,αl,1.20,／,

,计算燃料消耗量,Bc,"8,350.29",kg/h,

,1kg燃料燃烧时所需理论空气量,V0,4.36,Nm3/h,

,,,,,,

3.4,空预器出口的实际烟气总量,Vpy,"51,193.08",Nm3/kg,Vpy=Bc*Vg

,计算燃料消耗量,Bc,"8,350.29",kg/h,

,1kg燃料燃烧时产生的实际烟气量Vg,Vg,6.13,Nm3/kg,"Vg=VOg+(VN2-VON2)+VO2+(VH2O-VOH2O)

=V0g+1.0161*(αpy-1)*VO"

,1kg燃料燃烧时产生的理论烟气量Vog,V0g,4.93,Nm3/kg,V0g

,过量空气中氮的容积VN2-VON2,VN2-VON2,0.94,Nm3/kg,VN2-VON2=0.79*(αpy-1)*VO

,过量空气中氧的容积VO2,VO2,0.25,Nm3/kg,VO2=0.21*(αpy-1)*VO

,过量空气中水蒸汽的容积VH2O-VOH2O,VH2O-VOH2O,0.02,Nm3/kg,VH2O-VOH2O=0.0161*(αpy-1)*VO

,空预器出口过量空气系数,αpy,1.27,／,

,1kg燃料燃烧时所需理论空气量,V0,4.36,Nm3/kg,

,,,,,,

3.5,除尘器进口烟气量,Vpy′,"52,303.22",Nm3/h,Vpy′＝（Vg＋1.0161Δαpy′V0）Bc

,除尘器进口烟温,tpy′,138.21,℃,tpy′＝(αpytpy＋Δαpy′ta)/(αpy＋Δαpy′)

,除尘器出口烟气量,Vc,"53,043.31",Nm3/h,Vc=Ｖpy′＋1.0161×ΔαcV0Bc

,除尘器出口烟温,tc,136.42,℃,tc＝[αpytpy＋(Δαpy′＋Δαc)ta]/(αpy＋Δαpy′＋Δαc)

,引风机进口烟气量（1台炉〕,Vpy″,"54,153.45",Nm3/h,Vpy″=Vc＋1.0161Δαpy″V0Bc

,引风机进口烟温,tpy″,133.84,℃,tpy″=[αpytpy＋(Δαpy′＋Δαc＋Δαpy″)ta]／(αpy＋Δαpy′＋Δαc＋Δαpy″)

,烟囱进口烟气量（1台炉〕,Vyc,"54,153.45",Nm3/h,Vyc=Vpy″＋1.0161ΔαycV0Bc

,烟囱进口烟温,tyc,133.84,℃,tyc＝［αpytpy＋（Δαpy′＋Δαc＋Δαpy″＋Δαyc）ta］／(αpy＋Δαpy′＋Δαc＋Δαpy″＋Δαyc）

,烟囱出口烟气量（X台炉〕,Vyc′,"108,306.90",Nm3/h,Vyc′=XVyc

,接入同一座烟囱锅炉台数,X,2.00,台,

,烟囱出口烟温,tyc′,123.84,℃,tyc′＝tyc-10

,送风机前冷空气温度,ta,20.00,℃,

,空预器排烟温度,tpy,141.00,℃,

,空预器出口过剩空气系数,αpy,1.27,／,

,空预器出口至除尘器进口漏风系数,Δαpy′,0.03,／,

,除尘器漏风系数,Δαc,0.02,／,

,除尘器至引风机漏风系数,Δαpy″,0.03,／,

,引风机至烟囱进口烟道漏风系数,Δαyc,0.00,／,

,1kg燃料燃烧时产生的实际烟气量Vg,Vg,6.13,Nm3/h,

,1kg燃料燃烧时所需理论空气量,V0,4.36,Nm3/h,

,计算燃料消耗量,Bc,"8,350.29",kg/h,

,,,,,,

,,,,,,

4,风机计算,,,,

4.1,送风机风量,Vff,"54,689.58",m3/h,Vff=k1*αpy*Bc*VO*(273+ta)/273*101/b[1]

,流量备用系数,k1,1.10,／,送风机:炉排锅炉、CFB取1.10，煤粉炉取1.05[1]

,锅炉空预器出口过量空气系数,αpy,1.27,／,

,计算燃料消耗量,Bc,"8,350.29",kg/h,

,1kg燃料燃烧时所需理论空气量V0,V0,4.36,,

,送风机前冷空气温度,ta,20.00,℃,

,当地大气压,b,101.00,kPa,

,,,,,,

4.2,送风机风压,Hff,"4,800.00",Pa,Hff=k2*∑△ha*{(273+ta)/(273+tg)}*（101/b）*(1.293/ρOa)[1]

,风压备用系数,k2,1.20,／,送风机:炉排锅炉、CFB取1.20，煤粉炉取1.10[1]

,送风风道总阻力,∑△ha,"4,000.00",Pa,

,送风机前冷空气温度,ta,20.00,℃,

,送风机铭牌上标出的气体温度,tg,20.00,℃,一般采用20℃[1]

,当地大气压,b,101.00,kPa,

,大气压力为101kPa时的空气密度,,1.293,kg/m3,

,实际送风密度,ρ0a,1.293,kg/m3,

,,,,,,

4.3,引风机风量,Vif,"88,772.83",m3/h,Vif=k1*Vpy″*{(273+tpy″)/273}*(101/b)[1]

,流量备用系数,k1,1.10,／,引风机：炉排锅炉、CFB取1.10，煤粉炉取1.05～1.10[1]

,引风机进口烟气量（1台炉〕,Vpy″,"54,153.45",Nm3/kg,

,引风机进口烟温,tpy″,133.84,℃,

,当地大气压,b,101.00,kPa,

,,,,,,

4.4,引风机风压,Hif,"9,003.66",Pa,Hif=k2*∑△hg*{(273+tpy″)/(273+tg)}*（101/b）*(1.293/ρOa)

,风压备用系数,k2,1.20,／,引风机：炉排锅炉、CFB取1.20，煤粉炉取1.15～1.20[1]

,引风烟道总阻力,∑△hg,"5,600.00",Pa,

,引风机进口烟温,tpy″,133.84,℃,

,引风机铭牌上标出的气体温度,tg,20.00,℃,一般采用20℃[1]

,当地大气压,b,101.00,Pa,

,大气压力为101kPa时的空气密度,1.293,1.293,kg/m3,

,实际烟气密度,ρ0a,1.340,kg/m3,

,,,,,,

4.5,引风机的轴功率,Pf,377.36,kW,Pf=V*H/(3600*9.81*102*η1*η2)

,风机风量,V,"88,772.83",m3/h,V=Vif

,风机风压,H,"9,003.66",Pa,H=Hif

,风机在全压头时的效率,η1,0.60,／,一般风机约为0.6，高效风机约为0.9[1]

,机械传动效率,η2,0.98,／,"直联取1.0[1]

联轴器联结取0.95~0.98

三角皮带传动取0.90~0.95

平皮带传动取0.8"

,,,,,,

4.6,引风机电动机的功率,Pmo,461.21,kW,Pmo=Nf*β/η3

,引风机的轴功率,Nf,377.36,kW,

,电动机备用系数,β,1.10,／,电动机功率大于5.0kW，β取1.0[1]

,电动机效率,η3,0.90,／,通常取η3=0.90[1]

,,,,,,

4.7,送风管道截面面积校核,A,1.52,m2,A=V/(3600×w）

,实际送风空气量,V,"54,689.58",m3/h,V=Vff

,空气或烟气选用流速,w,10.00,m/s,风或烟道的设计流速：金属烟道取10～15m/s，砖或混凝土烟道选择8～12m/s

,,,,,,

4.8,引风管道截面面积校核,A,2.47,m2,A=V/(3600×w）

,实际引风烟气量,V,"88,772.83",m3/h,V=Vif

,空气或烟气选用流速,w,10.00,m/s,风或烟道的设计流速：金属烟道取10～15m/s，砖或混凝土烟道选择8～12m/s

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5,输煤系统计算,,,,

,运煤系统输送量,Q,"51,275.41",kg/h,Q={B(G+m)K*T}/t

,锅炉最大连续蒸发量时的耗煤量,B,"8,545.90",kg/h,

,锅炉台数,G,2.00,台,

,锅炉发展台数,m,0.00,台,

,运输中不平衡系数,K,1.20,／,K一般取1.1～1.2[1]

,锅炉每日运行时数,T,20.00,h,

,运输系统每班实际工作时间,t,8.00,h,"运煤系统一般采用两班工作制[1]

一班工作制，不宜大于6h；

二班工作制，不宜大于11h；

三班工作制，不宜大于16h；"

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6,原煤仓计算,,,,

6.1,煤仓几何容积,V,133.53,m3,V=V′/kcm

,煤仓有效容积,V′,106.82,m3,V′＝B/1000*Z*τm/γdu

,煤仓充满系数,kcm,0.80,／,

,锅炉最大连续蒸发量时的耗煤量,B,"8,545.90",kg/h,

,每台炉煤仓数量,Z,1.00,个,

,煤仓储煤工作时间,τm,10.00,h,"每台锅炉煤仓的有效储量宜为：[1]

一班工作制16～20h锅炉额定耗煤量

两班工作制10～12h锅炉额定耗煤量"

,煤的堆积密度,γdu,0.80,t/m3,"松散物料堆积密度[1]

无烟煤0.7～1.0

烟煤0.8～1.0

褐煤0.6～0.8"

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7,脱硫石灰石耗量计算,,,,

7.1,炉后脱硫石灰石耗量,MS″,0.00,kg/h,MS″=B*(1-q4/100)*c*Sar/100*ηSO2″/100*100/32*CaS*100/KCaCO3

,锅炉最大连续蒸发量时的耗煤量,B,"8,545.90",kg/h,

,机械不完全燃烧损失,q4,2.29,%,

,含硫燃料燃烧后生成S02的份额,c,0.85,／,

,燃煤收到基硫分,Sar,1.22,%,

,炉后脱硫效率,ηSO2″,0.00,%,

,石灰石纯度,KCaCO3,90.00,%,

,钙、硫摩尔比,Ca/S,2.50,／,

,CaCO3的相对分子量,100,100.00,／,

,S的相对分子量,32,32.00,／,

,,,,,,

7.2,炉内脱硫石灰石耗量,MS′,526.17,kg/h,MS′=B*(1-q4/100)*c*Sar/100*ηSO2′/100*100/32*CaS*100/KCaCO3[1]

,锅炉最大连续蒸发量时的耗煤量,B,"8,545.90",kg/h,

,机械不完全燃烧损失,q4,2.29,%,

,含硫燃料燃烧后生成S02的份额,c,0.85,／,

,燃煤收到基硫分,Sar,1.22,%,

,炉内脱硫效率,ηSO2′,70.00,%,

,石灰石纯度,KCaCO3,90.00,%,

,钙、硫摩尔比,Ca/S,2.50,／,

,CaCO3的相对分子量,100,100.00,／,

,S的相对分子量,32,32.00,／,

,,,,,,

7.3,加入石灰石增加灰渣量,GS,594.36,kg/h,GS=GS1+GS2

,过量石灰石及杂质形成的灰渣量,GS1,336.75,kg/h,GS1=MS′-（MS′*KCaCO3/100*1/CaS）

,钙、硫摩尔比,Ca/S,2.50,／,

,石灰石纯度,KCaCO3,90.00,%,

,炉内脱硫石灰石耗量,Ms′,526.17,kg/h,

,生成硫酸钙形成的灰渣量,GS2,257.61,kg/h,GS2=B*(1-q4/100)*c*Sar/100*ηSO2′/100*136/32

,锅炉最大连续蒸发量时的耗煤量,B,"8,545.90",kg/h,

,机械不完全燃烧损失,q4,2.29,%,

,含硫燃料燃烧后生成S02的份额,c,0.85,／,

,燃煤收到基硫分,Sar,1.22,%,

,炉内脱硫效率,ηSO2′,70.00,%,

,硫酸钙、硫摩尔比,136/32,4.25,／,NCaSO4/NS

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,,,,,,

8,灰渣计算,,,,

8.1,锅炉除灰渣量,Gt,"2,499.57",kg/h,Gt=Gz+Gh

,锅炉除渣渣量,Gz,"1,005.86",kg/h,Gz=Ghz′*(100-αfa)/100

,锅炉除尘器除灰量,Gh,"1,493.71",kg/h,Gh=Ghz′*αfa/100*ηc/100

,锅炉除尘器效率,ηc,99.00,%,

,锅炉排烟带出飞灰份额,αfh,60.00,%,

,锅炉灰渣量+加入石灰石增加灰渣量,Ghz′,"2,514.66",kg/h,Ghz′=Ghz+Gs

,加入石灰石增加灰渣量,Gs,594.36,kg/h,

,锅炉灰渣量,