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项目名称单位符号公式备注夏季高压A夏季常压B冬季常压C冬季高压D平均高压E炉容积m313501350135013501350已知炉有效容积m3Vu13501350135013501350已知当地大气压MPaP00.102770.102770.100190.100190.10274已知当地空气温度℃35356624已知相对湿度%d9090787885已知热风炉充风量m3/min(标)Qf300300000炼铁提供冶炼强度t焦/m3di1.2610.760.961.075炼铁提供炉顶压力(表压)MPaPd0.20.030.030.20.2炼铁提供料柱损失(表压)MPa△P10.150.150.150.150.15炼铁提供送风系统管网损失(表压)MPa△Pf0.030.030.030.030.03炼铁提供高炉所需风压(表压)MPaPcPc＝Pd+△P1+△Pf0.380.210.210.380.38吸风阻力损失(表压)MPa△Px0.0030.0030.0030.0030.003风机入口压力(绝压)MPaPfxPfx＝P0-△Px0.099770.099770.097190.097190.09974风机出口风压(绝压)MPaPhPh＝P0+Pc0.482770.312770.310190.480190.48274压比(绝对压力之比)εε=Ph/Pfx4.838833.134913.191584.940734.83998吨焦耗风量m3/t焦(标)q富氧3％时：2200；不富氧：260024002400240024002400炼铁提供高炉入炉风量m3/min(标)QgQg=Vu×i×q/144028352250171021602419漏风损失δ0.030.030.030.030.03炼铁提供风机出口风量m3/min(标)Q2Q2＝Qg×（1+δ）29202318176122252491不充风时风机出口风量m3/min(标)Q3Q3＝Q2+Qf32202618充风时风量修正系数计算大气温度℃ta35356624标准大气绝对温度KT0273273273273273大气绝对温度KTaTa＝T0+ta308308279279297标准大气压力MPaP00.101320.101320.101320.101320.10132实际大气压力MPaPa0.102770.102770.100190.100190.10274鼓风机进风系统的阻力MPaΔPX0.0030.0030.0030.0030.003鼓风机吸口法兰处压力MPaPX0.099770.099770.097190.097190.09974工况点空气相对湿度%φ9090787885水蒸汽的饱和压力MPaPbz查《空压站设计手册》表1-50.005730.005730.000270.000270.00298实际大气绝对湿度MPaPzPz＝Pbz×φ/1000.005160.005160.000210.000210.00253气压修正系数K1K1=PX/P00.984670.984670.959210.959210.98437气温修正系数K2K2=T0/Ta0.886360.886360.978490.978490.91919湿度修正系数K3K3=1－PZ/Pa0.949820.949820.997880.997880.97533风量修正系数KK=K1×K2×K30.828980.828980.936590.936590.88251空气绝对含湿量dg(水蒸汽)/kg(干空气)0.00110.001387.5E-055.9E-050.00063风量修正系数K0.828980.828980.936590.936590.88251鼓风机实际送风量m3/minQQ=Q3/K3884.353157.49充风时鼓风机实际送风量m3/minQ'1880.542375.422823不充风时机后富氧率X00000机后富氧修正系数khz11111鼓风机富氧后实际送风量m3/min3884.353157.491880.542375.422823鼓风机机械效率ηm%0.980.980.980.980.980.97～0.99绝热系数k1.41.41.41.41.4绝热系数nk/(k-1)3.53.53.53.53.5多变效率ηn%0.90.90.90.90.90.85～0.9多变指数σσ=n×ηn=k×ηn/(k-1)3.153.153.153.153.15鼓风机轴功率NekWNe=Pfx×Q×k/(k-1)×(ε(k-1)/k/ηn－1)/6120×η14975.68193.944843.099071.710882.5联轴器效率ηz%0.980.980.980.980.980.9变速箱效率ηb%汽动风机没有变速箱111110.95～0.97安全系数1.11.11.11.11.1汽轮机功率NekW16809.49197.285436.1210182.512215.1汽机耗汽率kg/kW4.24.24.24.24.2汽机耗汽量t/h70.599338.628622.831742.766651.3033机前富氧要考虑风量修正，机后富氧不考虑新日铁法ABCDE高炉容积m313501350135013501350已知高炉有效容积m3Vn13501350135013501350已知当地大气压MPaPa0.102770.102770.100190.100190.10274已知当地空气温度℃35356624已知相对湿度%9090787885已知热风炉充风量Nm3/minQf300300已知日产铁量t/dP33757778570068002903已知炉顶压力(表)MPaPt0.20.030.030.20.2已知料柱损失(表)MPa△P10.150.150.150.150.15已知送风系统管网损失(表)MPa△Pf0.0350.0350.0350.0350.035已知风口前鼓风压力MPaPb0.3850.2150.2150.3850.385炉内透气阻力系数K2.62.62.62.62.6炉腹煤气量Nm3/minVBG9346.746714.586669.239310.89346.32冷风管网损失(表)MPa00000吸风阻力损失(表)MPa△Px0.0015已知高炉所需风压(表)MPaPc0.3850.2150.2150.3850.385风机吸入口压力(绝)MPaPfx0.101270.101270.098690.098690.10124风机出口风压(绝)MPaPh0.487770.317770.315190.485190.48519压比(绝对压力之比)ε4.816533.137853.193744.91634.79247燃料比kg/t铁FR530530530530520已知生铁耗风量Nm3/minqo12001355.211355.211355.211317.16高炉入炉风量Nm3/minVB28137320536464002655漏风损失δ0.015已知风机出口风量Nm3/minQ228557430544564962695风机风量Nm3/minQ331557430544564962695风量修正k0.828980.828980.936590.936590.88251鼓风机实际送风量m3/min38068963充风时581369353054不充风时机前富氧率X00000机前富氧修正系数khz11111鼓风机富氧后实际送风量m3/min3805.58962.6000鼓风机机械效率%ηm0.980.980.980.980.980.97～0.99绝热系数k1.41.41.41.41.4绝热系数k/(k-1)3.53.53.53.53.5多变效率%ηn0.90.90.90.90.90.85～0.9多变指数0.317460.317460.317460.317460.31746鼓风机轴功率kWNe14836.823631.415213.426788.511855.3联轴器效率%ηz0.980.980.980.980.98变速箱效率%ηb0.970.970.970.970.970.95～0.97安全系数1.051.051.051.051.05汽轮机功率kWNe16388.226102.416804.229589.613094.9