暖通计算参考.doc

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1、《锅炉及锅炉房设备》课程设计任务书题目：SHL10-1.0/350-WI型锅炉热力计算一、锅炉参数1．额定蒸发量D：10t/h；2．蒸汽压力P：1.3MPa3．蒸汽温度tgr：350℃；4．給水温度tgs：105℃；5．冷空气温度tlk：30℃；6．预热空气温度tr：150℃；7．排烟温度tpy：180℃；8．锅炉排污率：5﹪。二、锅炉燃料与燃烧计算1．锅炉燃料：I类无烟煤，元素分析成分如表一表一元素分析收到基成分（﹪）56.250.682.100.890.2828.809.00无灰干燥基挥发分Vr=6.18﹪收到基低位发热量Q=18187KJ/Kg2．燃料的燃烧计算（1）锅炉受热面的过量

2、空气系数及漏风系数（表二）表二锅炉受热面的过量空气系数及漏风系数序号锅炉受热面入口空气过量系数漏风系数出口空气过量系数α'⊿αα"1炉堂1.400.101.502防渣管1.5001.503蒸汽过热器1.500.051.554锅炉管束1.550.101.655省煤器1.650.101.746空气预热器1.750.101.85（2）理论空气量、理论烟气容积的计算序号名称符号单位计算公式结论1理论空气量Vokm3/Kg0.0889(C+0.375S)+0.256H-0.0333O=0.0889×(56.25+0.375×0.89)+0.256×0.68-0.0333×2.105.132三原子气体

3、VRo2m3/Kg0.01866(C+0.375S)=0.01866×(56.25+0.375×0.89)1.063理论氮气容积m3/Kg0.79+0.008N=0.79×5.13+0.008×0.284.454理论水蒸汽容积m3/Kg0.111H+0.0124W+0.0161=0.111×0.68+0.0124×9.00+0.0161×5.130.27各受热面烟道中烟气特性表名称符号单位计算公式炉膛与防渣管蒸汽过热器锅炉管束省煤器空气预热器平均过量空气系数1.451.5251.61.6951.8实际水蒸气体积Vm/kg0.3070.3130.3200.3270.336烟气总体积Vm/kg

4、8.12258.51638.89089.40249.95RO体积份额r0.13050.12450.11920.11250.1065HO体积份额r0.0380.0370.0360.0350.034三原子气体体积份额r0.1690.1620.1550.1480.141(3)烟气温焓表烟气温度V=1.06m/kgV=4.45m/kgV=0.27m/kg℃(c)co(c)coV(c)(c)V(c)(c)V12345671001701801305791514120035732526011573048230055937839217444631254007728185272345626169500994

5、1055664295579521560012251299804357896926270014621550948421911493108001705180710944868133436090019522069124255271526412100022042336139261941723465110024582605154468711925520120027172880169775522132576130029773156185382462344633140032393433200989402559691150035033813216696392779750160037693995232510

6、466300281117004036427824841105432298721800430545632644117663458934190045744848280412478369099620004844513529651319439261060=5.13I=I+()I(c)（KJ/Kg）1.501.55I△II△I891011121314800132677.1615642661364.5822474032067.3933325422780.4642256843508.9251398804514.460799785017.148587.58838.4271127703511295791.7

7、79930.88510220.473511261161800812826576.6611296.3311625.16311441177899514377371.8112680.90513049.495511601196999615958182.3514087.17514496.2925117012041100817538992.8915504.44515954.0895118912251203519149818.8216