文档介绍：排烟温度冷空气温度(送风机入口空气温度)低位发热量K1,K2,K3,K4:计算锅炉效率系数干烟气热损失=排烟比热/低位发热量*(系数k1+系数k2*过量空气系数)*(排烟温度–冷空气温度)*100水分热损失=*(系数k3+*(系数k4+系数k2*过来空气系数))*(排烟温度–冷空气温度)*100排烟热损失=干烟气热损失+(定值,根据每个厂情况确定)Q3_b=:低位发热量Ay:灰分Cfh:飞灰含碳量Clz:炉渣含碳量机械不完全燃烧损失=33730/低位发热量*灰分*(*飞灰含碳量/(100–飞灰含碳量)+*炉渣含碳量/(100–炉渣含碳量)):自然指数主蒸汽流量散热损失=*额定主汽流量*Exp()/:其他热损失(定值,根据每个厂情况确定)Q6_b=:锅炉效率Q2_b:排烟热损失Q3_b:化学未完全燃烧损失Q4_b:机械不完全燃烧损失Q5_b:散热损失Q6_b:其他热损失Eta_b=100–Q2_b–Q3_b–Q4_b–Q5_b–:排烟温度基准值Tpy_el_K:排烟温度耗差偏差因子Tpy:排烟温度Tlk:冷空气温度Qdw:低位发热量K1,K2,K3,K4:系数Alpha_py:过量空气系数Tpy_el:排烟温度耗差Eta_b:锅炉效率b_cp_g:=Tpy_el_K*(Tpy–Tpy_b)/Eta_b*:排烟氧量基准值O2_el_K:排烟氧量耗差偏差因子Tpy:排烟温度Tlk:冷空气温度Qdw:低位发热量Alpha_py:过量空气系数Cpg:排烟比热O2:排烟氧量O2_el:排烟氧量耗差Eta_b:锅炉效率b_cp_g:=O2_el_K*(O2–O2_b)/Eta_b*:飞灰含碳基准值Cfh_el_K:飞灰耗差偏差因子Qdw:低位发热量Ay:灰分Cfh:飞灰含碳量Cfh_el:飞灰含碳量能损Eta_b:锅炉效率b_cp_g:=Cfh_el_K*(Cfh–Cfh_b)/Eta_b*:低位发热量耗差偏差因子Cpg:排烟比热Tpy:排烟温度Tlk:冷空气温度Qdw:低位发热量Qdw_el_b:低位发热量基准值Alpha_py:过量空气系数Q4_b:机械未完全热损失Qdw_el:低位发热量耗差Eta_b:锅炉效率b_cp_g::=Qdw_el_K*(Qdw–Qdw_el_b)/Eta_b*:灰分耗差偏差因子Q4_b:机械未完全燃烧损失Ay:灰分Ay_el:灰分耗差Ay_el_b:灰分基准值Eta_b:锅炉效率b_cp_g::=Ay_el_K*(Ay–Ay_el_b)/Eta_b*:水分耗差偏差因子Qdw:低位发热量Tpy:排烟温度Tlk:冷空气温度Wy_el_b:灰分基准值Eta_b:锅炉效率b_cp_g::=Wy_el_K*(Wy–Wy_el_b)/Eta_b*:冷空气温度耗差Tpy:排烟温度耗差Tlk_el=-Tpy_el汽轮机侧指标计算模型注::机侧主蒸汽压力T0_t:机侧主蒸汽温度h0_t:机侧主蒸汽焓Pgp:高压缸排汽压力Tgp:高排汽温度Hgp:高排汽焓Eta_H:高压缸效率高压缸理想焓降DeltaH_H_t=hht(P0_t,T0_t,Pgp)高压缸实际焓降DeltaH_H=h0_t–hgpEta_H=DeltaH_H/:再热蒸汽压力(机侧)Trh:再热蒸汽温度(机侧)hrh:再热蒸汽焓Pzp:中压缸排汽压力Tzp:中压缸排汽温度hzp:中压缸排汽焓Eta_M:中压缸效率中压缸理想焓降DeltaH_M_t=hht(Prh,Trh,Pzp)中压缸实际焓降DeltaH_M=hrh–hzpEta_M=DeltaH_M/DeltaH_M_t第二部分加热器基本指标2