热力计算书WNS5.6-1.0/95/70-Y(Q)22-33100-0A目录一、锅炉规范————————————2二、燃料特性表———————————2三、燃烧产物计算——————————2四、烟气特性计算——————————2五、烟气温焓表———————————3六、锅炉热平衡及燃料耗量计算————4七、燃烧室计算———————————4八、第一对流管束计算————————5九、第二对流管束计算————————6十、热力计算汇总表—————————7参考资料:1、《层状燃烧及沸腾燃烧工业锅炉热力计算方法》JB/DQ1060-822、《锅炉原理》西安交通大学陈学俊、陈听宽3、《锅壳式燃油气炉的排烟温度和烟气阻力简易计算方法》《工业锅炉》1993年第1期第1页共9页热力计算书WNS5.6-1.0/95/70-Y(Q)序号名称符号单位计算公式或来源计算结果一锅炉规范序号名称符号单位数值1锅炉热功率QMW5.62额定工作压力PMPa13额定出水温度tr℃604回水温度th℃405冷空气温度tlk℃20二燃料特性表以0#轻柴油为例计算序号名称符号单位数值1碳Cy%47.622氢Hy%2.273氧Oy%7.344氮Ny%0.985硫Sy%1.176灰份Ay%31.627水份Wy%99应用基低位发热量QydwkJ/kg18821三1理论空气量VONm3/kg0.0889(Cy+0.375Sy)+0.265Hy-0.0333Oy4.6302RO2的容量VRO2Nm3/kg0.01866(Cy+0.375Sy)0.8973N2理论容积V0N2Nm3/kg0.79VO+0.8Ny/1003.6654H2O理论容积VOH2ONm3/kg0.111Hy+0.0124Wy+0.0161V°0.4385理论干烟气容积V0gNm3/kgVRO2+V0N24.562四烟气特性计算1平均空气过剩系数αpj/选取1.032实际水蒸汽容积VH2ONm3/kgVOH2O+0.0161(αpj-1)VO0.4403烟气总容积VyNm3/kgVH2O+V°N2+VRO2+(αpj-1)V°5.1414RO2容积份额rRO2/VRO2/Vy0.1745H2O容积份额rH2O/VH2O/Vy0.0866三原子气体容积份额rg/rRO2+rH2O0.2607烟气重量Gykg/kg1-Ay/100+1.306αpjVO6.9118烟气重度γkg/m3Gy/Vy1.34422-33100-0A郑州锅炉厂燃烧产物计算第2页共9页热力计算书WNS5.6-1.0/95/70-Y(Q)22-33100-0A五烟气温焓表(Cq)CO2(Cq)CO2×VRO2(Cq)N2(Cq)N2×VN2(Cq)H2O(Cq)H2O×V0H2O∑(Ⅰ+Ⅱ+Ⅲ)(Cq)K(Cq)K×V0I△I100169.98152.4340312129.8475.741038150.7266.03130152694.2063706132.3612.4895808712.581731.34279200357.55320.6423571260952.94815304.38133.3506341406.941141266.281232.7568071443.92752.25764300558.94501.2441311391.881436.31277462.64202.6852532140.242157402.771864.6442062196.18776.27978400772.05692.3561231526.71930.45304626.35274.40754852897.216712541.772508.1517782972.46798.08914500996.46893.601687664.032433.79292794.65348.14074943675.535359684.123167.1683453770.55811.100666001222.551096.353835803.872946.33242967.15423.71399464466.400249829.823841.6939074581.65835.435697001461.191310.360525946.223468.071531147.18502.58617625281.018233979.714535.6172885417.09858.310618001704.031528.1336761092.754005.131121335.59585.12968416118.3944781130.445233.4294916275.4877.451529001951.051749.6553511243.484557.584481524667.67319216974.9130251281.165931.1953997152.85887.2525310002202.261974.9345191394.25110.001191724.96755.71492747840.650641436.076648.3591258040.1891.6240211002457.652203.9622121544.935662.454561925.93843.76104398710.1778141595.177384.9206698931.73897.1761412002717.232436.7473981695.656214.871272131.08933.63844249585.257111754.278121.4822139828.918004304.033859.7519912641.879682.94283458.31515.10118115057.795972729.7912637.7016815436.9962.9315919004571.994100.0521622805.1610281.43093688.571615.98379715997.466852897.2713413.0588616399.9954.9562820004844.134344.1008572964.2510864.52523927.221720.53773816929.16383064.7414188.3697517354.8968.5143921005116.274588.1495523127.5411463.01334161.681823.25601717874.418863232.2114963.6806318323.3q℃ⅠⅡⅢI0ykJ/kgI0kkJ/kgIy=I0y+(α-1)I0kVRO2=1.598Nm3/kgV0N2=8.82Nm3/kgV0H2O=1.677Nm3/kgV0=11.17Nm3/kgα=1.03第3页共9页热力计算书WNS5.6-1.0/95/70-Y(Q)序号名称符号单位计算公式或来源计算结果六锅炉热平衡及燃料耗量计算1锅炉输入热量QrkJ/kgQydw188212排烟温度qpy℃先假定,后校核141.683排烟焓IpykJ/kg查烟气焓温表1017.4054冷空气温度tlk℃选取205冷空气焓IlkkJ/kg(Cq)kV°122.56固体不完全燃烧热损失q4%选取0.007气体不完全燃烧热损失q3%选取1.008散热损失q5%选取2.209排烟热损失q2%(Ipy-αpjI°lk)(100-q4)/Qr4.7410总热损失Sq%q2+q3+q4+q57.9411锅炉热效率h%100-Sq92.0612保热系数j1-q5/(h+q5)0.9813给水温度tgs℃4014进水焓igskJ/kg查水和水蒸气热力性质表293.92115出水焓irskJ/kg查水和水蒸气热力性质表398.70416锅炉有效利用热量QglkJ/h2.02E+0717燃料消耗量Bkg/hQgl/(Qr×h)1163.518计算燃料消耗量Bjkg/hB(1-q4/100)1163.5七燃烧室计算参考资料[3]1辐射受热面Hfm2结构(包括波形炉胆及转向室)172系数C—轻油61.23进入锅炉的热量QlkJ/hQgl/h2.19E+074炉膛出口烟温ql℃[C(Ql/Hf)^0.25-32]/1.81127.655炉膛出口烟焓IlkJ/kg查烟气焓温表9179.7622-33100-0A郑州锅炉厂第4页共9页热力计算书WNS5.6-1.0/95/70-Y(Q)序号名称符号单位计算公式或来源八第一对流管束热力计算(螺纹烟管)(一)螺纹烟管结构计算1螺纹烟管规格dwmm选定2螺纹烟管壁厚smm选定3螺纹烟管内径dnmm4烟管数量n结构定5烟管长度Lmm结构定6烟管受热面积Hm2nπdnL7螺纹节距pmm结构定8螺纹槽深εmm结构定9比值p/dn10比值ε/dn11比值p/ε12烟气流通截面积Fm2nπdn2/413有效辐射层厚度sm0.9dn(二)螺纹烟管热力计算1进口烟温q1'℃同ql2进口烟焓I1'kJ/kg同Il3出口烟温q℃先假定,后校核4出口烟焓IkJ/kg查烟气焓温表5烟气侧放热量QrpkJ/kgj(I'-I)6工质温度t℃tbh7最大温差△tmax℃q'-tbh8最小温差△tmin℃q-tbh9平均温压△t℃10烟气平均温度qpj℃△t+tbh11烟气流速wm/sBjVy(qpj+273)/(3600×273F)12烟气质量流速ωρkg/m2h式4Ql·Gy/(Qydw·F)13导热系数λkJ/mh℃[1]附表914运动粘度νm2/s[1]附表9郑州锅炉厂第5页共9页热力计算书WNS5.6-1.0/95/70-Y(Q)序号名称符号单位计算公式或来源郑州锅炉厂15普朗特准则数Pr[1]附表916雷诺数Rewdn/ν17努谢尔特数Nu0.0169Re0.9206(p/dn)-0.08(ε/dn)0.112Pr0.418烟管放热系数αkJ/m2h℃Nu·λ/dn19热有效系数ψ根据[2]选取20传热系数kkJ/m2h℃ψ·α21传热量QcrkJ/kgkH△t/Bj22计算误差△%|(Qrp-Qcr)/Qrp|×10023结论△2%计算合格九第二对流管束热力计算(光管)[3]1烟管规格dwmm选定2烟管壁厚smm选定3烟管内径dnmm4烟管数量n结构定5烟管长度Lmm结构定6烟管受热面积Hm2nπdnL7烟气流通截面积Fm2nπdn2/48进口烟温q2'℃同q19进口烟焓I2'kJ/kg同I110烟气质量流速ωρkg/m2h式4Ql·Gy/(Qydw·F)11系数B12出口烟温q2℃即排烟温度tb+(q2'-tb)/100.0357B13出口烟焓I2kJ/kg14烟气平均温度qpj℃(q2'+q2)/215烟气流速wm/sBjVy(qpj+273)/(3600×273F)第6页共9页计算结果57351154374792.45251.80.4901960780.03529411813.890.3150.04591127.659179.763402506.696517.32601067.65280588.49648.4917.8325560.450.2829.79E-0522-33100-0A第7页共9页计算结果22-33100-0A0.6059.284E+0345.231250.050.6150.037015.827.64957351112462082.900.2293402506.6935145.620.25113.00807.68226.5013.29第8页共9页热力计算书WNS5.6-1.0/60/40-Y(Q)22-8Q81热力计算汇总表1、锅炉规范序号名称符号单位数值1额定热功率QMW5.62额定工作压力PeMPa13额定出口水温t°C604额定进口水温t°C402、计算结果汇总表序号名称符号单位燃烧室第一管束第二管束1进口烟温q'℃1127.63402出口烟温q℃1127.6340113.03工质温度t℃4受热面积Hm217.0092.458