燃油燃气锅炉热力计算书(详细版)

目录一、锅炉设计规范（基本参数）二、燃料特性三、理论空气量和燃烧产物四、温焓表五、整体热平衡计算六、炉胆热平衡计算七、回燃室热力八、第一管束结构计算九、第一管束热力十、第二管束结构计算十一、第二管束热力计算十二、锅炉总热平衡校核十三、锅炉热力计算汇总表本计算依据《燃油燃气锅炉》（西安交通大学）进行计算1Q=2.8MW2P=0MPa3t＂=95℃4t＇=70℃5tlk=30℃6Phs=0MPa7Pgs=0MPa8G=26.75074042kg/s96.3027t/h9天然气1011Cy%Hy%Oy%Ny%Sy%Ay%Wy%QydwkJ/kg85.5513.490.660.040.2500.0142900V0m3/kg11.1666V0N2m3/kg8.8219V0H2Om3/kg1.6773VRO2m3/kg1.5981αpj/1.1000VH2Om3/kg1.6953Vym3/kg13.2140rH2O/0.1283RO2容积份额rRO2/0.1209三原子气体容积份额rq/0.2492共页第页一、锅炉设计规范（基本参数）烟气总容积H2O容积份额北京市热水锅炉厂WNS2.8-1.0/95/70-Y（Q）型燃油燃气锅炉热力计算书室燃锅壳式燃油燃气湿背式三回程VRO2+V0N2+V0H2O+（α-1）V0VH2O/Vy标准公式4-10燃烧方式锅炉型式理论水蒸气容积理论空气量0.0889（Cy+0.375Sy)+0.265Hy-0.0333Oy)标准公式4-020.79V0+0.008Ny标准公式4-040.111Hy+0.0124Wy+0.0161V0理论氮气容积锅炉循环水量设计燃料二、燃料特性三、理论空气量和燃烧产物额定供热量工作压力额定出水温度回水温度（1.866Cy+0.7Sy）/100冷空气温度出水压力回水压力RO2容积实际H2O蒸气容积平均烟气特性表平均过量空气系数设计取定VRO2/Vy标准公式4-09rH2O＋rRO2标准表4-1V0H2O+0.0161（α-1）V0标准表4-11Q=2.8MW2P=0MPa3t＂=95℃4t＇=70℃5tlk=30℃6Phs=0MPa7Pgs=0MPa8G=26.7507kg/s96.30279天然气1011Cy%Hy%Oy%Ny%Sy%Ay%Wy%85.5513.490.660.040.2500.01V0m3/kgV0N2m3/kgV0H2Om3/kgVRO2m3/kgαpj/VH2Om3/kgVym3/kgrH2O/RO2容积份额rRO2/三原子气体容积份额rq/RO2容积实际H2O蒸气容积平均烟气特性表平均过量空气系数设计取定VRO2/Vy标准公式4-09rH2O＋rRO2标准表4-1额定供热量工作压力额定出水温度回水温度（1.866Cy+0.7Sy）/100冷空气温度出水压力回水压力理论氮气容积锅炉循环水量设计燃料二、燃料特性V0H2O+0.0161（α-1）V0标准表4-1三、理论空气量和燃烧产物VRO2+V0N2+V0H2O+（α-1）V0VH2O/Vy标准公式4-10燃烧方式锅炉型式理论水蒸气容积理论空气量0.0889（Cy+0.375Sy)+0.265Hy-0.0333Oy)标准公式4-020.79V0+0.008Ny标准公式4-040.111Hy+0.0124Wy+0.0161V0共页第页一、锅炉设计规范（基本参数）烟气总容积H2O容积份额北京市热水锅炉厂WNS2.8-1.0/95/70-Y（Q）型燃油燃气锅炉热力计算书室燃锅壳式燃油燃气湿背式三回程t/hQydwkJ/kg4290011.16668.82191.67731.59811.10001.695313.21400.12830.12090.2492平均烟气特性表二、燃料特性三、理论空气量和燃烧产物共页第页一、锅炉设计规范（基本参数）J（CJ）CO2（CJ）N2（CJ）O2（CJ）H2O（CJ）B（CJ）3л℃kJ/m3kJ/m3kJ/m3kJ/m3kJ/m3kJ/kg100170.0129.6131.8150.5132.480.8200357.5259.9267.0304.5266.4169.2300558.5392.0406.9462.8402.7263.7400771.9526.6551.0626.2541.8360.0500994.4663.9699.0794.9684.2458.56001224.7804.2850.1968.9829.8560.47001462.0947.61004.21148.9978.3662.28001705.01093.71160.01334.51129.1767.29001952.41241.61318.11526.11282.3873.910002203.61391.81477.61723.01437.4984.011002458.51543.91638.21925.21595.01101.112002716.71697.31800.72132.41753.61236.013002976.91852.91963.92343.81914.41404.014003239.22008.92128.42559.22076.21573.615003503.32166.22294.32779.12239.11737.016003769.02324.62460.63001.92403.01893.817004036.52484.22628.73229.32567.52046.818004304.92643.82797.63458.52732.02201.419004574.32804.22967.43690.42898.82354.120004844.42965.23138.63925.83065.82512.021005115.63127.53309.64163.33234.0——22005386.93289.43482.84402.23401.9——北京市热水锅炉厂WNS2.8-1.0/95/70-Y（Q）型燃油燃气锅炉热力计算书共页第页标准表XIII1m3空气和烟气及1kg灰的焓温度理论烟焓空气焓温度℃IyIkIyΔIIyΔI℃10016671478181518151002003375297536721904367219042003005127449755771958557719583004006930605075352009753520094005008779764095432060954320605006001067792661160421121160421126007001262310924137162157137162157700800146121260815873219315873219380090016633143191806522301806522309001000186901605120295226420295226410001100207781781122559229122559229111001200228921958224850232324850232312001300250352137727173233727173233713001400271922318429510236029510236014001500293702500331870237931870237915001600315662683334249240134249240116001700337832867036650240536650240517001800360043050739055242139055242118001900382393237041476243341476243319002000404853423543909245143909245120002100427493611346360245046360245021002200450123798848810488102200I0y=VRO2（cJ）RO2+V0N2（cJ）N2+V0H2O（cJ）H2OIy=I0y+（α-1）V0北京市热水锅炉厂WNS2.8-1.0/95/70-Y（Q）型燃油燃气锅炉热力计算书共页第页炉膛出口αl＂=1.1烟管出口αpy=1.1烟气焓温表序号符号单位数值1α＂l/1.1002QrkJ/kg429003tlk℃30.0004I0lkkJ/kg443.5375Jpy℃210.0006IpykJ/kg3862.7937q2%7.8678q3%0.5009q4%0.00010q5%1.20011q6%0.00012∑q%9.56713η%90.43314j/0.98715QMW2.80016Gkg/s26.75117t＂℃9518t＇℃7019i＂kJ/kg398.47220i＇kJ/kg314.67921QyxMW2.80022Bkg/s0.07223B＇kg/h259.82224Bjkg/h259.822设计选定输入锅炉热量设计选定设计选定查温焓表先假定后校核查温焓表（Ipy-αpy×Iolk）×（100-q4）/Qr标准公式5-07炉膛出口过量空气系数冷空气温度保热系数散热损失燃料物理热损失锅炉总热损失锅炉额定供热量额定出水温度锅炉有效利用热总燃料消耗量计算燃料消耗量总燃料消耗量锅炉循环水量回水温度出口水焓进口水焓冷空气理论焓排烟温度排烟焓气体不完全燃烧损失锅炉热效率排烟损失固体不完全燃烧损失WNS2.8-1.0/95/70-Y（Q）型燃油燃气锅炉热力计算书共页第页总体热平衡计算Qr=Qydw北京市热水锅炉厂公式及数据来源名称53标准附录II-二设计选定标准图5-1（设计取定）设计选定∑q=q2+q3+q4+q5+q6100-∑q1-q5/（η+q5）Bj=B＇（1-q4/100）设计选定1000×Qyx/(i＂-i＇)设计选定设计选定53标准附录II-二Qyx=QB=Qyx×1000×100/（Qr×η）标准公式5-17B＇=B×3600序号符号单位数值WNS2.8-1.0/95/70-Y（Q）型燃油燃气锅炉热力计算书共页第页北京市热水锅炉厂公式及数据来源名称序号符号单位数值1dm0.8282Lm4.3003VTm32.3154Fm211.1855Sm0.7456Hfm211.1857QrkJ/kg42900.0008计算燃料消耗量Bjkg/h259.8229j/0.98710α＂l/1.10011△αl/0.00012tlk℃30.00013I0lkkJ/kg443.53714QkkJ/kg487.89115QlkJ/kg43173.39116Jll℃1969.77417TllK2242.77418J＂l℃931.00019T＂lK1204.00020I＂lkJ/kg18756.37121ThyK1463.69322tb℃185.00023TbK458.00024CkW/(m2·K)12.30025Hfm211.18526QrpkJ/kg24097.26227QcrkJ/kg24071.10328△%0.109绝热燃烧温度空气带入炉内热量α＂lI0lk结构计算《标准》公式6-05a结构计算设计给定Qr=Qydw锅炉输入热量设计选定冷空气温度热平衡计算热平衡计算设计选定设计选定Qr(100-q4-q3-q6)/(100-q4)+Qk│Qrp-Qcr│/Qrp×100T＂l+1/4(Tll-T＂l)t＂+90设计选取结构计算j(Ql-I＂l)CHf/Bj［(Thy/100)4-(Tb/100)4］计算误差火焰绝对平均温度炉胆壁温辐射和对流换热系数辐射和对流的有效面积烟气放热量烟气传热量（一）：炉膛计算北京市热水锅炉厂WNS2.8-1.0/95/70-Y（Q）型燃油燃气锅炉热力计算书共页第页名称公式及数据来源部件计算设计取定设计取定查温焓表炉胆出口烟气温度先假定后校核炉胆直径炉胆长度炉胆容积炉胆壁面积结构计算有效辐射层厚度炉胆绝对壁温tb+273查温焓表冷空气理论焓辐射受热面积炉胆入炉