锅炉热力计算(最全) 2014

燃烧计算（不投脱硫工况1）序号一原始数据1234567锅炉最大连续蒸发量过热器出口蒸汽压力过热器出口蒸汽温度再热器蒸汽流量再热器进口蒸汽压力再热器出口蒸汽压力再热器进口蒸汽温度再热器出口蒸汽温度省煤器进口给水温度DgrPgrtgrDzrPzrjPzrctzrjtzrctgsPgsPqbηηαpwg名称符号单位公式或来源设计煤种校核煤种t/hMPa(g)℃t/hMPa(g)MPa(g)℃℃℃MPa(g)MPa(g)锅炉厂提供数据锅炉厂提供数据锅炉厂提供数据锅炉厂提供数据锅炉厂提供数据锅炉厂提供数据锅炉厂提供数据锅炉厂提供数据锅炉厂提供数据67013.730553.762.6612.395326.702.115.815.10.0267013.730553.762.6612.395326.702.115.815.10.020.920.0050.9318327145252308.442.441.20.010.030.030.020.050.110省煤器进口给水压力11汽包压力12锅炉排污率13锅炉效率14机械未完全燃烧损失15飞灰份额16空预器出口一次风温17空预器出口二次风温18空预器出口烟气温度（修正后)19空预器进口一次风温20空预器进口二次风温21空预器一次风至二次风漏风量22空预器二次风至烟气漏风量23空预器一次风至烟气漏风量24炉膛出口过剩空气系数25炉膛漏风系数26过热器漏风系数27再热器漏风系数28省煤器漏风系数29空预器漏风率30除尘器漏风率锅炉厂提供数据暂取暂取℃℃℃℃℃kg/skg/skg/s锅炉厂提供数据锅炉厂提供数据估取lgrzr0.920.0050.9320331145q4fhtkyⅠ\"tkyⅡ\"tpytkyⅠ'tkyⅡ'GⅠ→ⅡGⅡ→烟GⅠ→烟α△α△α△αl锅炉厂提供数据锅炉厂提供数据252308.442.441.20.010.030.030.020.050.1△α估取估取估取估取锅炉厂提供数据估取第 1 页 共 6 页

sm△Lky△Lc燃烧计算（不投脱硫工况1）31每十米钢烟道漏风系数32当地大气压33标准大气压34冷风温度35夏季通风室外计算温度36湿空气密度(高于100℃)37湿空气密度(低于100℃)38干空气密度39磨煤机运行台数二燃料特性1234567收到基水分空干基水分干燥无灰基挥发分收到基灰分收到基碳收到基氢收到基氧收到基氮收到基硫Mt(Mar)MadVdafAarCarHarOarNarSarQar,net,pHGIDTSTFT℃℃℃%Qar,net,pQar,net,pkcal/kgkcal/kg%%%%%%%%%kJ/kgkcal/kg11哈氏可磨性系数12灰变形温度13灰软化温度14灰流动温度验算成份总和收到基低位发热量(门得列也夫公式)收到基低位发热量(日本公式)三燃料量计算1过热蒸汽焓igrkJ/kg由Pgr,tgr查表得34353435电厂提供数据电厂提供数据电厂提供数据电厂提供数据电厂提供数据电厂提供数据电厂提供数据电厂提供数据电厂提供数据电厂提供数据电厂提供数据电厂提供数据电厂提供数据电厂提供数据9.532.66.1135.91.922.838.0.620.5114550348060135013901440100.00382316.196.4744.7030.6940.132.659.330.630.3813480322462124012901350100.003573△αPP0tlftxρρρnkrklkgyd估取kPakPa℃℃kg/Nmkg/Nm30.010.01102.120271.2851.3061.2935102.1当海拔高度高于300m时对容积流量和速度做修正：P0/P P0取固定值，20暖通提供271.2851.3061.293选用MPS磨5台（4＋1运行）4102.1102.1见《制粉规程》第98页，本工程不用修正，因此取比值为1（实际P=102.1）kg/Nm3310收到基低位发热量第 2 页 共 6 页

燃烧计算（不投脱硫工况1）234567再热蒸汽进口焓再热蒸汽出口焓给水焓排污水焓锅炉实际耗煤量锅炉计算耗煤量izrjizrcigsipwBgBjkJ/kgkJ/kgkJ/kgkJ/kgt/ht/h由Pzrj,tzrj查表得由Pzrc,tzrc查表得由Pgs,tgs查表得由Pqb查表得Bg=(Dgr(igr－igs)+Dgr×ηBj=Bg(1-q4)(ipw－igs)+Dzr(izrc－izrj))/(ηg×Qar,net,p)pw×3068.735511105.61615137.05136.373068.735511105.61615147.93147.19四理论空气量及理论烟气量12理论空气量燃烧产物理论体积V0VV34理论烟气量理论干烟气量0N20Nm3/kgV＝0.08(Car+0.375Sar)+0.265Har－0.0333Oar3Nm/kgV00N2＝0.79V+0.008Nar4.2063.3280.7860.5004.6134.1133.9723.1430.7510.5594.4533.4V0RO20H2O0VyV0gy0310-2Nm/kgVRO2＝1.866(Car+0.375Sar)×3Nm/kgV0H2O＝0.111Har+0.0124Mt+0.0161V0000Vy＝VN2+VRO2+VH2OV0gy＝V0N2+V0RO20Nm/kgNm3/kg3五烟气量计算1空气预热器出口烟气量ααky'ky⑴空预器入口过剩空气系数⑵空预器漏风系数⑶空预器出口过剩空气系数⑷空预器出口燃烧产物实际体积⑸空预器出口干烟气实际体积⑹空预器出口烟气量ααNm/kgNm3/kgm/hm/s333ky'=αl+△αgr+△αzr+△αsm000ky=△Lky(Vy+1.0161(αky'-1)V)/V1.280.06911.34916.10535.581612747703.10832565177.050.861211632323.73761155278.811.280.07031.35035.86675.28551322202367.288634183.0.85691191204330.777988283.△α△αpyVpydwVgydwVpypy=αky'+△αkyVpydw=V0y+1.0161(αpy-1)V0Vgydw=V0gy+(αpy-1)V0Vpy=Vpydw×Bj×1000×(tpy+273)/273×P0/PVpy/3600dw每台空预器出口烟气量⑺空预器出口烟气比重⑻空预器出口干烟气量γpyBj×1000Nm3/hVpy×m3/sVpy/2kg/m3m/hm/s33VpygV0)/Vpydw×273/(273+tpy)×P/P0py=(1-0.01Aar+1.306αpy×dwVpyg=Vgy×Bj×1000×(tpy+273)/273×P0/PγVpyg/3600dwBj×1000Nm3/hVgy×kg/s(Vpyg/3600)×γpy2除尘器进口处烟气量第 3 页 共 6 页

燃烧计算（不投脱硫工况1）⑴空预器出口至脱硫除尘岛入口钢烟道长度⑵空预器出口至脱硫除尘岛入口钢烟道漏风系数⑶脱硫除尘岛进口过剩空气系数⑷脱硫除尘岛进口燃烧产物实际体积⑸脱硫除尘岛进口烟气温度⑹脱硫除尘岛进口烟气量Lyd1△ααyd1c'dwVc'10m估计△α△αydyd1=Lyd1×αc'=αpy+△αyd1Vc'dw=Vpydw+1.0161△αyd1×V03.50.0351.384076.255145.0dw3.50.0351.385286.008145.013036376.128843350.85655.42145.01222534339.597984490.9486Nm3/kg℃m/hm3/s3tc'Vc'tc'=tpyVc'=Vc'×Bj×1000×(tc'+273)/273×P0/PVc'/3600γc'=(1-0.01Aar+1.306αc'×V0)/Vc'dw×273/(273+tc')×P/P0dwdw0Vyd1×1306002362.788529630.86075.73145.01196168332.277812300.9398dw3Bj×1000Nm/hVc'×⑺脱硫除尘岛进口烟气比重⑻脱硫除尘岛进口干烟气实际体积⑼脱硫除尘岛进口干烟气温度⑽脱硫除尘岛进口干烟气量c'dwVc'gγkg/m3tc'gVc'g3Nm/kgVc'g=Vgy+△αtc'g=tc'℃m/hm/s33Vc'g=Vc'g×Bj×1000×(tc'g+273)/273×P0/PVc'g/3600dwdwBj×1000Nm3/hVc'g×(11)脱硫除尘岛进口干烟气比重3脱硫除尘岛出口处烟气量△ααcγc'gkg/m3γVc'dw/Vc'gdwc'g=γc'×⑴脱硫除尘岛漏风系数⑵脱硫除尘岛出口过剩空气系数⑶脱硫除尘岛出口燃烧产物实际体积⑷脱硫除尘岛出口烟气温度⑸脱硫除尘岛出口烟气量△αc=△Lc(V0y+1.0161(αc'-1)V0)/V0αc\"=αc'+△αdwdwc0Vyd1+△αc)×3Nm/kgVc\"=Vpy+1.0161(△αtc'=tpy℃0.148711.532786.0145.01438704399.9396320.85886.35145.01326768368.558665260.93120.151271.536556.618145.01491620414.349741920.6.03145.01357938377.208868830.9391c\"dwVc\"tc\"Vc\"m/hm3/s3Vc\"=Vc\"×Bj×1000×(tc\"+273)/273×P0/PVc\"/3600dw0dwV)/Vc\"×273/(273+tc\")×P/P0c\"=(1-0.01Aar+1.306αc\"×Vc\"gdw=Vgydw+(△αyd1+△αc)×V0dwBj×1000Nm3/hVc\"×⑹脱硫除尘岛出口烟气比重⑺脱硫除尘岛出口干烟气实际体积⑻脱硫除尘岛出口干烟气温度⑼脱硫除尘岛出口干烟气量c\"Vc\"gdwγkg/m℃3γNm3/kgm3/hm/s3tc\"gVc\"gtc\"g=tc\"Vc\"g=Vc\"gdw×Bj×1000×(tc\"g+273)/273×P0/PVc\"g/3600dw3Bj×1000Nm/hVc\"g×⑽脱硫除尘岛出口干烟气比重4引风机进口处烟气量γc\"gkg/m3γVc\"dw/Vc\"gdwc\"g=γc\"×第 4 页 共 6 页

燃烧计算（不投脱硫工况1）⑴脱硫除尘岛出口至引风机入口钢烟道长度⑵脱硫除尘岛出口至引风机入口钢烟道漏风系数⑶引风机进口过剩空气系数⑷引风机进口燃烧产物实际体积⑸引风机进口烟气温度⑹引风机进口烟气量Lyd2△ααVxjtxjyd2xjdw10m估计△α△αydyd2=Lyd2×yd240.041.5728V0yd1+△αc+△αyd2)×7.061145.01474398409.559629440.85836.5225145.0dw40.041.57666.780145.01528002424.449979530.856.1842145.01393743387.159102670.93697001212.22181.351313.850.8282158.3αxj=αc\"+△α℃m/hm3/s3dwdwNm3/kgVxj=Vpy+1.0161(△αVxjVxj=Vxj×Bj×1000×(txj+273)/273×P0/PVxj/3600V0)/Vxjdw×273/(273+txj)×P/P0xj=(1-0.01Aar+1.306αxj×dwdw0Vxjg=Vgy+(△αyd1+△αc+△αyd2)×Vγtxjg=txjVxjg=Vxjg×Bj×1000×(txjg+273)/273×P0/PVxjg/3600dwdwdw3Bj×1000Nm/hVxj×⑺引风机进口烟气比重⑻引风机进口干烟气实际体积⑼引风机进口干烟气温度⑽引风机进口干烟气量xjdwVxjgγkg/m3Nm/kg℃m/hm/s333txjgVxjg13616378.3084680.9292737199204.78175.761267.770.8318158.3Bj×1000Nm3/hVxjg×(11)引风机进口干烟气比重(12)每台引风机风量γxjgkg/m3m/hm3/skg/s3γVxjxjg=γxj×dw/VxjgdwV引风机V引风机=Vxj/2V引风机/3600(V引风机/3600)×γxj烟囱烟气体积烟囱烟气密度烟囱烟气温度m/skg/m℃33六烟气露点123456空预器出口烟气湿分量空预器出口烟气比重空预器出口烟气重量流量空预器出口烟气含湿量烟气中水蒸汽的露点温度折算灰分G'γpykg/skg/m3kg/s℃%/MJG'=(V000.804×Bj×1000/3600H2O+0.0161(αpy-1)V)×15.9480.8612304.96855.18042.0310.3322.47119.1080.8569314.716.63844..5202.277Gy'd'tldH2OASGy'=Vpy×Bj×1000/3600×γd'=G'×1000/(Gy'-G')由d'查表得dw(273+tpy)/273×P0/Ppy×%/McalAS=1000×Aar/Qar,net,p第 5 页 共 6 页

燃烧计算（不投脱硫工况1）78折算硫分烟气露点温度(清华公式)SS%/McalAS=1000×Sar/Qar,net,p%/MJ℃tld=tldH2O+208×(SS)1/3/(4.396×αfh×AS)0.1470.038.990.1180.02851.83tld第 6 页 共 6 页