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序號,名稱,符號,單位,公式或來源,設(shè)計煤種,校核煤種

,,,,,,,

一,原始數(shù)據(jù),,,,,

1,鍋爐最大連續(xù)蒸發(fā)量,Dgr,t/h,鍋爐廠提供數(shù)據(jù),670,670

2,過熱器出口蒸汽壓力,Pgr,MPa(g),鍋爐廠提供數(shù)據(jù),13.73,13.73

3,過熱器出口蒸汽溫度,tgr,℃,鍋爐廠提供數(shù)據(jù),540,540

4,再熱器蒸汽流量,Dzr,t/h,鍋爐廠提供數(shù)據(jù),553.76,553.76

5,再熱器進口蒸汽壓力,Pzrj,MPa(g),鍋爐廠提供數(shù)據(jù),2.661,2.661

6,再熱器出口蒸汽壓力,Pzrc,MPa(g),鍋爐廠提供數(shù)據(jù),2.395,2.395

7,再熱器進口蒸汽溫度,tzrj,℃,鍋爐廠提供數(shù)據(jù),326.7,326.7

8,再熱器出口蒸汽溫度,tzrc,℃,鍋爐廠提供數(shù)據(jù),540,540

9,省煤器進口給水溫度,tgs,℃,鍋爐廠提供數(shù)據(jù),254.1,254.1

10,省煤器進口給水壓力,Pgs,MPa(g),,15.8,15.8

11,汽包壓力,Pqb,MPa(g),,15.1,15.1

12,鍋爐排污率,ηpw,,,0.02,0.02

13,鍋爐效率,ηg,,鍋爐廠提供數(shù)據(jù),0.92,0.92

14,機械未完全燃燒損失,q4,,暫取,0.005,0.005

15,飛灰份額,αfh,,暫取,0.9,0.9

16,空預(yù)器出口一次風(fēng)溫,"tkyⅠ""",℃,,320,318

17,空預(yù)器出口二次風(fēng)溫,"tkyⅡ""",℃,,331,327

18,空預(yù)器出口煙氣溫度（修正后),tpy,℃,,145,145

19,空預(yù)器進口一次風(fēng)溫,tkyⅠ',℃,鍋爐廠提供數(shù)據(jù),25,25

20,空預(yù)器進口二次風(fēng)溫,tkyⅡ',℃,鍋爐廠提供數(shù)據(jù),23,23

21,空預(yù)器一次風(fēng)至二次風(fēng)漏風(fēng)量,GⅠ→Ⅱ,kg/s,,0,0

22,空預(yù)器二次風(fēng)至煙氣漏風(fēng)量,GⅡ→煙,kg/s,鍋爐廠提供數(shù)據(jù),8.44,8.44

23,空預(yù)器一次風(fēng)至煙氣漏風(fēng)量,GⅠ→煙,kg/s,鍋爐廠提供數(shù)據(jù),2.44,2.44

24,爐膛出口過剩空氣系數(shù),αl,,估取,1.2,1.2

25,爐膛漏風(fēng)系數(shù),△αl,,估取,0.01,0.01

26,過熱器漏風(fēng)系數(shù),△αgr,,估取,0.03,0.03

27,再熱器漏風(fēng)系數(shù),△αzr,,估取,0.03,0.03

28,省煤器漏風(fēng)系數(shù),△αsm,,估取,0.02,0.02

29,空預(yù)器漏風(fēng)率,△Lky,,鍋爐廠提供數(shù)據(jù),0.05,0.05

30,除塵器漏風(fēng)率,△Lc,,估取,0.1,0.1

31,每十米鋼煙道漏風(fēng)系數(shù),△αyd,,估取,0.01,0.01

32,當(dāng)?shù)卮髿鈮?P,kPa,當(dāng)海拔高度高于300m時對容積流量和速度做修正：P0/PP0取固定值，,102.1,102.1

33,標(biāo)準(zhǔn)大氣壓,P0,kPa,見《制粉規(guī)程》第98頁，本工程不用修正，因此取比值為1（實際P=102.1）,102.1,102.1

34,冷風(fēng)溫度,tlf,℃,,20,20

35,夏季通風(fēng)室外計算溫度,tx,℃,暖通提供,27,27

36,濕空氣密度(高于100℃),ρkr,kg/Nm3,,1.285,1.285

37,濕空氣密度(低于100℃),ρkl,kg/Nm3,,1.306,1.306

38,干空氣密度,ρkg,kg/Nm3,,1.293,1.293

39,磨煤機運行臺數(shù),n,,選用MPS磨5臺（4＋1運行）,4,5

,,,,,,,

二,燃料特性,,,,,

1,收到基水分,Mt(Mar),%,電廠提供數(shù)據(jù),9.53,16.19

2,空干基水分,Mad,%,電廠提供數(shù)據(jù),2.66,6.47

3,干燥無灰基揮發(fā)分,Vdaf,%,電廠提供數(shù)據(jù),46.11,44.70

4,收到基灰分,Aar,%,電廠提供數(shù)據(jù),35.95,30.69

5,收到基碳,Car,%,電廠提供數(shù)據(jù),41.92,40.13

6,收到基氫,Har,%,電廠提供數(shù)據(jù),2.83,2.65

7,收到基氧,Oar,%,電廠提供數(shù)據(jù),8.64,9.33

8,收到基氮,Nar,%,電廠提供數(shù)據(jù),0.62,0.63

9,收到基硫,Sar,%,電廠提供數(shù)據(jù),0.51,0.38

10,收到基低位發(fā)熱量,"Qar,net,p",kJ/kg,電廠提供數(shù)據(jù),14550,13480

,,,kcal/kg,,3480,3224

11,哈氏可磨性系數(shù),HGI,,電廠提供數(shù)據(jù),60,62

12,灰變形溫度,DT,℃,電廠提供數(shù)據(jù),1350,1240

13,灰軟化溫度,ST,℃,電廠提供數(shù)據(jù),1390,1290

14,灰流動溫度,FT,℃,電廠提供數(shù)據(jù),1440,1350

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驗算,成份總和,,%,,100.00,100.00

,收到基低位發(fā)熱量(門得列也夫公式),"Qar,net,p",kcal/kg,,3823,3573

,收到基低位發(fā)熱量(日本公式),"Qar,net,p",kcal/kg,,,

,,,,,,,

三,燃料量計算,,,,,

1,過熱蒸汽焓,igr,kJ/kg,"由Pgr,tgr查表得",3435,3435

2,再熱蒸汽進口焓,izrj,kJ/kg,"由Pzrj,tzrj查表得",3068.7,3068.7

3,再熱蒸汽出口焓,izrc,kJ/kg,"由Pzrc,tzrc查表得",3551,3551

4,給水焓,igs,kJ/kg,"由Pgs,tgs查表得",1105.6,1105.6

5,排污水焓,ipw,kJ/kg,由Pqb查表得,1615,1615

6,鍋爐實際耗煤量,Bg,t/h,"Bg=(Dgr(igr－igs)+Dgr×ηpw×(ipw－igs)+Dzr(izrc－izrj))/(ηg×Qar,net,p)",137.05,147.93

7,鍋爐計算耗煤量,Bj,t/h,Bj=Bg(1-q4),136.37,147.19

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四,理論空氣量及理論煙氣量,,,,,

1,理論空氣量,V0,Nm3/kg,V0＝0.0889(Car+0.375Sar)+0.265Har－0.0333Oar,4.206,3.972

2,燃燒產(chǎn)物理論體積,V0N2,Nm3/kg,V0N2＝0.79V0+0.008Nar,3.328,3.143

,,V0RO2,Nm3/kg,V0RO2＝1.866(Car+0.375Sar)×10-2,0.786,0.751

,,V0H2O,Nm3/kg,V0H2O＝0.111Har+0.0124Mt+0.0161V0,0.500,0.559

3,理論煙氣量,V0y,Nm3/kg,V0y＝V0N2+V0RO2+V0H2O,4.613,4.453

4,理論干煙氣量,V0gy,Nm3/kg,V0gy＝V0N2+V0RO2,4.113,3.894

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五,煙氣量計算,,,,,

1,空氣預(yù)熱器出口煙氣量,,,,,

⑴,空預(yù)器入口過?？諝庀禂?shù),αky',,αky'=αl+△αgr+△αzr+△αsm,1.28,1.28

⑵,空預(yù)器漏風(fēng)系數(shù),△αky,,△αky=△Lky(V0y+1.0161(αky'-1)V0)/V0,0.0691,0.0703

⑶,空預(yù)器出口過?？諝庀禂?shù),αpy,,αpy=αky'+△αky,1.3491,1.3503

⑷,空預(yù)器出口燃燒產(chǎn)物實際體積,Vpydw,Nm3/kg,Vpydw=V0y+1.0161(αpy-1)V0,6.1053,5.8667

⑸,空預(yù)器出口干煙氣實際體積,Vgydw,Nm3/kg,Vgydw=V0gy+(αpy-1)V0,5.5816,5.2855

⑹,空預(yù)器出口煙氣量,Vpy,m3/h,Vpy=Vpydw×Bj×1000×(tpy+273)/273×P0/P,1274770,1322202

,,,m3/s,Vpy/3600,354.10,367.28

,,,Nm3/h,Vpydw×Bj×1000,832565,863544

,每臺空預(yù)器出口煙氣量,,m3/s,Vpy/2,177.05,183.64

⑺,空預(yù)器出口煙氣比重,γpy,kg/m3,γpy=(1-0.01Aar+1.306αpy×V0)/Vpydw×273/(273+tpy)×P/P0,0.8612,0.8569

⑻,空預(yù)器出口干煙氣量,Vpyg,m3/h,Vpyg=Vgydw×Bj×1000×(tpy+273)/273×P0/P,1165432,1191204

,,,m3/s,Vpyg/3600,323.73,330.89

,,,Nm3/h,Vgydw×Bj×1000,761155,777988

,,,kg/s,(Vpyg/3600)×γpy,278.81,283.54

,,,,,,,

2,除塵器進口處煙氣量,,,,,

⑴,空預(yù)器出口至脫硫除塵島入口鋼煙道長度,Lyd1,10m,估計,3.5,3.5

⑵,空預(yù)器出口至脫硫除塵島入口鋼煙道漏風(fēng)系數(shù),△αyd1,,△αyd1=Lyd1×△αyd,0.035,0.035

⑶,脫硫除塵島進口過?？諝庀禂?shù),αc',,αc'=αpy+△αyd1,1.38407,1.38528

⑷,脫硫除塵島進口燃燒產(chǎn)物實際體積,Vc'dw,Nm3/kg,Vc'dw=Vpydw+1.0161△αyd1×V0,6.255,6.008

⑸,脫硫除塵島進口煙氣溫度,tc',℃,tc'=tpy,145.0,145.0

⑹,脫硫除塵島進口煙氣量,Vc',m3/h,Vc'=Vc'dw×Bj×1000×(tc'+273)/273×P0/P,1306002,1354036

,,,m3/s,Vc'/3600,362.78,376.12

,,,Nm3/h,Vc'dw×Bj×1000,852963,884335

⑺,脫硫除塵島進口煙氣比重,γc',kg/m3,γc'=(1-0.01Aar+1.306αc'×V0)/Vc'dw×273/(273+tc')×P/P0,0.8607,0.8565

⑻,脫硫除塵島進口干煙氣實際體積,Vc'gdw,Nm3/kg,Vc'gdw=Vgydw+△αyd1×V0,5.73,5.42

⑼,脫硫除塵島進口干煙氣溫度,tc'g,℃,tc'g=tc',145.0,145.0

⑽,脫硫除塵島進口干煙氣量,Vc'g,m3/h,Vc'g=Vc'gdw×Bj×1000×(tc'g+273)/273×P0/P,1196168,1222534

,,,m3/s,Vc'g/3600,332.27,339.59

,,,Nm3/h,Vc'gdw×Bj×1000,781230,798449

(11),脫硫除塵島進口干煙氣比重,γc'g,kg/m3,γc'g=γc'×Vc'dw/Vc'gdw,0.9398,0.9486

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3,脫硫除塵島出口處煙氣量,,,,,

⑴,脫硫除塵島漏風(fēng)系數(shù),△αc,,△αc=△Lc(V0y+1.0161(αc'-1)V0)/V0,0.14871,0.15127

⑵,脫硫除塵島出口過剩空氣系數(shù),"αc""",,"αc""=αc'+△αc",1.53278,1.53655

⑶,脫硫除塵島出口燃燒產(chǎn)物實際體積,"Vc""dw",Nm3/kg,"Vc""dw=Vpydw+1.0161(△αyd1+△αc)×V0",6.890,6.618

⑷,脫硫除塵島出口煙氣溫度,"tc""",℃,tc'=tpy,145.0,145.0

⑸,脫硫除塵島出口煙氣量,"Vc""",m3/h,"Vc""=Vc""dw×Bj×1000×(tc""+273)/273×P0/P",1438704,1491620

,,,m3/s,"Vc""/3600",399.64,414.34

,,,Nm3/h,"Vc""dw×Bj×1000",939632,974192

⑹,脫硫除塵島出口煙氣比重,"γc""",kg/m3,"γc""=(1-0.01Aar+1.306αc""×V0)/Vc""dw×273/(273+tc"")×P/P0",0.8588,0.8549

⑺,脫硫除塵島出口干煙氣實際體積,"Vc""gdw",Nm3/kg,"Vc""gdw=Vgydw+(△αyd1+△αc)×V0",6.35,6.03

⑻,脫硫除塵島出口干煙氣溫度,"tc""g",℃,"tc""g=tc""",145.0,145.0

⑼,脫硫除塵島出口干煙氣量,"Vc""g",m3/h,"Vc""g=Vc""gdw×Bj×1000×(tc""g+273)/273×P0/P",1326768,1357938

,,,m3/s,"Vc""g/3600",368.55,377.20

,,,Nm3/h,"Vc""gdw×Bj×1000",866526,886883

⑽,脫硫除塵島出口干煙氣比重,"γc""g",kg/m3,"γc""g=γc""×Vc""dw/Vc""gdw",0.9312,0.9391

,,,,,,,

4,引風(fēng)機進口處煙氣量,,,,,

⑴,脫硫除塵島出口至引風(fēng)機入口鋼煙道長度,Lyd2,10m,估計,4,4

⑵,脫硫除塵島出口至引風(fēng)機入口鋼煙道漏風(fēng)系數(shù),△αyd2,,△αyd2=Lyd2×△αyd,0.04,0.04

⑶,引風(fēng)機進口過?？諝庀禂?shù),αxj,,"αxj=αc""+△αyd2",1.5728,1.5766

⑷,引風(fēng)機進口燃燒產(chǎn)物實際體積,Vxjdw,Nm3/kg,Vxjdw=Vpydw+1.0161(△αyd1+△αc+△αyd2)×V0,7.061,6.780

⑸,引風(fēng)機進口煙氣溫度,txj,℃,,145.0,145.0

⑹,引風(fēng)機進口煙氣量,Vxj,m3/h,Vxj=Vxjdw×Bj×1000×(txj+273)/273×P0/P,1474398,1528002

,,,m3/s,Vxj/3600,409.55,424.44

,,,Nm3/h,Vxjdw×Bj×1000,962944,997953

⑺,引風(fēng)機進口煙氣比重,γxj,kg/m3,γxj=(1-0.01Aar+1.306αxj×V0)/Vxjdw×273/(273+txj)×P/P0,0.8583,0.8545

⑻,引風(fēng)機進口干煙氣實際體積,Vxjgdw,Nm3/kg,Vxjgdw=Vgydw+(△αyd1+△αc+△αyd2)×V0,6.5225,6.1842

⑼,引風(fēng)機進口干煙氣溫度,txjg,℃,txjg=txj,145.0,145.0

⑽,引風(fēng)機進口干煙氣量,Vxjg,m3/h,Vxjg=Vxjgdw×Bj×1000×(txjg+273)/273×P0/P,1361896,1393743

,,,m3/s,Vxjg/3600,378.30,387.15

,,,Nm3/h,Vxjgdw×Bj×1000,889468,910267

(11),引風(fēng)機進口干煙氣比重,γxjg,kg/m3,γxjg=γxj×Vxjdw/Vxjgdw,0.9292,0.9369

(12),每臺引風(fēng)機風(fēng)量,V引風(fēng)機,m3/h,V引風(fēng)機=Vxj/2,737199,764001

,,,m3/s,V引風(fēng)機/3600,204.78,212.22

,,,kg/s,(V引風(fēng)機/3600)×γxj,175.76,181.35

,,,,,,,

,煙囪煙氣體積,,m3/s,,1267.77,1313.85

,煙囪煙氣密度,,kg/m3,,0.8318,0.8282

,煙囪煙氣溫度,,℃,,158.3,158.3

,,,,,,,

,,,,,,,

,,,,,,,

六,煙氣露點,,,,,

1,空預(yù)器出口煙氣濕分量,G',kg/s,G'=(V0H2O+0.0161(αpy-1)V0)×0.804×Bj×1000/3600,15.948,19.108

2,空預(yù)器出口煙氣比重,γpy,kg/m3,,0.8612,0.8569

3,空預(yù)器出口煙氣重量流量,Gy',kg/s,Gy'=Vpydw×Bj×1000/3600×γpy×(273+tpy)/273×P0/P,304.968,314.716

4,空預(yù)器出口煙氣含濕量,d',,d'=G'×1000/(Gy'-G'),55.180,64.638

5,煙氣中水蒸汽的露點溫度,tldH2O,℃,由d'查表得,42.03,44.8

6,折算灰分,AS,%/Mcal,"AS=1000×Aar/Qar,net,p",10.332,9.520

,,,%/MJ,,2.471,2.277

7,折算硫分,SS,%/Mcal,"AS=1000×Sar/Qar,net,p",0.147,0.118

,,,%/MJ,,0.035,0.028

8,煙氣露點溫度(清華公式),tld,℃,tld=tldH2O+208×(SS)1/3/(4.396×αfh×AS),48.99,51.83

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