立式管壳式余热锅炉工艺计算

炭黑烟气（管内）烟气流量G21000烟气密度ρ0.55工作压力-入口Pi0.015工作压力-出口Po0.012工作温度-入口Pi515工作温度-出口Po300导热系数（平均温度下）λi0.05765烟气在受热面中的流速ω12.64752烟气的运动粘度（平均温度）ν6.16E-05烟气的普朗特准则数Pr0.64烟气温度与受热面壁温的改正系数Ct1受热面的相对长度改正系数Cl1烟气温度及成分改正系数Cw0.98受热面通道的当量直径ddl0.068受热面通道的长度l5.7管内烟气传热系数αi33.100336烟气污垢热阻γi0.000516水及水蒸气（管外）饱和温度下水的密度ρl870饱和温度下水蒸气的密度ρv7.098汽化潜热r1959030重力加速度g9.8液体-蒸汽界面的表面张力γ0.038813大容器沸腾的临界热流密度q2907895.3沸腾绝对压力p1400000壁面过热度Δt常数C20.533沸腾换热表面传热系数αo148988.09介质水的污垢热阻γo0.0002换热管布局及参数管壳式余热锅炉(立式）换热管外径do0.076换热管壁厚δ0.004换热管内径di0.068换热管根数n127换热管长度l5.7换热面积A172.83912换热管平均直径dm0.072换热管导热系数λ36.2热量计算锅炉热损失f0.05烟气入口焓Hi612.5烟气出口焓Ho336.6烟气放出总热量Qz3186645给水温度tgs20蒸汽湿度θ1饱和蒸汽焓i''2788.8饱和水焓i'829.8蒸汽焓i2769.21给水焓igs104.82介质吸收热量Q3027312.8所需换热面积H151.09126总传热系数（以外径为准）y16.712E-06y20.0002y30.0001166y40.0005767y50.0337654K28.847139有效平均温差ΔT192.93574沸腾水的饱和温度t195产汽量潜热x12683.98显热x2724.98排污率η0.03产汽量D=Q/(x1+x2*η)1118.8527说明Nm³/h用户给定kg/m³用户给定MPa用户给定MPa用户给定℃用户给定℃用户给定w/(m×℃）查《锅炉原理及计算》691页表Ⅵ-10m/sm²/s查《锅炉原理及计算》691页表Ⅵ-101查《锅炉原理及计算》691页表Ⅵ-101烟气在受热面中受到冷却时1l/ddl≥50时1查《锅炉原理及计算》309页图12-8m烟气在管内流动时管内径即当量直径mw/(m²*k)计算所得查表kg/m³查水及水蒸气物性表kg/m³查水及水蒸气物性表J/kg查水及水蒸气物性表m/s²已知N/m查水及水蒸气物性表w/m²Pa用户给定℃w0.3/(m0.3*N0.15*K)常数w/(m²*k)查表得管壳式余热锅炉(立式）mmmmm²mw/(m×℃）换热管材质的导热系数，查表得kJ/kg根据烟气温焓表求得kJ/kg根据烟气温焓表求得kJ/h℃用户给定kJ/kg查水及水蒸气物性表kJ/kg查水及水蒸气物性表kJ/kg查水及水蒸气物性表kJ/kg查水及水蒸气物性表kJ/hm²w/(m²*k)℃℃kJ/kgkJ/kgkg/h平均温度407.51959.03挠性管板计算支撑形式K0.35假想圆直径d11680mm设计压力P1.5Mpa许用应力[σ]117Mpa挠性管板最小需要厚度t=67.57788961表1：在大气压（p=1.01x105Pa）下烟气的物理性质（烟气中组成成分：CO2=0.13；H2O=0.11；N2=0.76)t/℃ρ/（kg/m3)CP/[Kj/(kg.℃）]λ×102/[W/m.℃）]μ×106/[kg/(m.s)]01.2951.0422.3815.8501.12251.0552.75518.11000.951.0683.1320.41500.8491.08253.5722.452000.7481.0974.0124.52500.68251.10954.42526.3553000.6171.1224.8428.213500.5711.13655.2729.9554000.5251.1515.731.7407.50.51991.153555.764531.93255000.4571.1856.5634.85150.44921.189356.68935.2656000.4051.2147.4237.96500.3841.22657.84539.37000.3631.2398.2740.77500.34651.25158.7142.058000.331.2649.1543.48500.31551.2779.57544.659000.3011.291045.99500.2881.29810.4547.1510000.2751.30610.948.410500.2661.314511.32549.5511000.2571.32311.7550.711500.24851.331512.18551.8512000.241.3412.6253υ×106/(m2/s)Pr12.20.7216.870.70521.540.6927.170.6832.80.6739.3050.6645.810.6553.0950.64560.380.6461.5740.6392576.30.6378.89650.628593.610.62102.8550.615112.10.61121.950.605131.80.6142.150.595152.50.59163.40.585174.30.58185.70.575197.10.57209.050.5652210.56