600MW火电厂原则性热力系统计算

1、项目单位回热抽汽参数1234加热器编号H1H2H3H4抽汽压力5.984.232.141.06抽汽温度353.6308.1475.9369.8上端差-1.700/下端差5.5/5.55.5抽汽焓30562977.43412.83199.4抽汽管道压损0.030.030.050.05门杆漏汽、轴封漏汽数据漏汽点代码ABKL1N1漏汽量582.8250.986965.42845.3683.66漏汽系数0.0003370.0001450.0040290.0016460.00004839漏汽点比焓3476.83476.83596.83422.63422.6轴封加热器物质热平衡计算项目名称BN1NTR漏

2、汽量250.9883.6694.94620.4178.6漏汽系数0.0001450.000048390.000059410.0003580.000103漏汽比焓3476.83422.62977.42714.73199.4总焓0.5041360.1656196140.1768873340.97186260.3295382平均比焓1.927835332/0.000647671=3009.307576其他原始数据整理项目名称符号单位数值项目名称符号主蒸汽压力P0Mp24.2锅炉连续排污量Dbl主蒸汽温度t0566全厂汽水损失Dl再热蒸汽参数（热段）prhMp3.648全厂工质渗漏trh566暖风器再

3、热蒸汽参数（冷段）prhMp4.053过热器减温水trh303.5厂用电率排汽压力pcMp0.0044化学补充水温度0.0054除氧器至给水泵高差给水泵出口压力30.376小汽轮机排汽压力给水温度280.8小汽机排汽焓给水泵效率0.85汽轮机进汽节流损失锅炉连续蒸发量Dbt/h1900中压缸进汽节流损失额定过热蒸汽压力pbMp25.4新汽焓h0额定过热蒸汽温度tb571轴封加热器压力PT0额定再热蒸汽压力4.41汽轮机机械效率额定再热蒸汽温度566发电机效率锅炉效率0.9405排汽比焓hc再热器吸热qrh项目名称符号单位数值化学补充水焓hmat/h83.7汽轮机总进汽量（预估）D0kg/h18

4、620002018000给水量Dfwkg/h1899612.45678H5H6H7H80.4020.1160.05620.0216251.7129.984.361.72.82.82.82.775.55.55.55.529682734.72615.62482.60.050.050.050.05M1LNMRP530.163230.7894.94600.66178.6842.240.0003060.0018690.000059410.0003470.0001030.0004873422.62977.42977.42977.43199.43199.4均压箱平均蒸汽比焓计算和项目名称pMM11228.5

5、8漏汽量842.24600.66530.160.0007138漏汽系数0.0004870.0003470.000306漏汽比焓3199.42977.43422.62.148043748总焓1.55810781.03315781.0473156平均比焓3.2652/0.001040139=3191.737895回热加热系统汽水参数计算项目单位单位数值汽侧抽汽压力kg/h19000抽汽比焓kg/h19000抽汽管道压损kg/h19000加热器侧压力kg/h35000汽侧压力下饱和温度55000水侧水侧压力0.07加热器上端差20出水温度m26出水比焓7进水温度2452.6进水比焓回热抽汽参数门杆漏

6、汽、轴封漏汽数据轴封加热器物质热平衡计算3009.307576其他原始数据整理0.04加热器下端差0.02疏水温度kJ/kg3398.78疏水比焓KPA980.990.9882333.8622.58水侧TSJW620.41327.2828430645.780.0003580.0007670.016440.0003472714.72714.72981.52316.6和1973.060.001143.6385812H1H2H3H4H5H65.984.232.141.060.4020.11630562977.43412.83199.429682734.70.030.030.050.050.050.0

7、55.80064.10312.0331.0070.38190.1102273.39251.87213.21180.18141.95102.34330.3730.37630.3761.10321.841.84-1.700 /2.82.78275.09251.87213.21180.18139.1599.5631205.891096.94913.146764.03586.52418.56251.87213.21185.38139.1599.56380.181096.94923.15802.03586.04418.56337.13均压箱平均蒸汽比焓计算3191.737895回热加热系统汽水参数计算5

8、.55.5 /5.55.55.5257.37218.71185.38144.65105.06385.681121.64938.21764.5609.57440.67358.84H7H8SG0.05620.02162615.62482.63009.3080.050.050.053390.020520.09882.9661.0311.841.841.842.782.7780.1858.26132.7337.13245.42138.758.26132.732.5245.42138.7136.35.55.55.563.76138.2266.92160.03415设计工况600（一）汽水平衡计算1、全厂

9、工质渗漏系数LDL/DO0.010204082锅炉排污率blDbl/DO0.010204082厂用汽系数pl0.0161减温水系数sp0.0295暖风器疏水系数nf0.0188补水率mapl+bl+l0.0365081632、给水系数1点物质平衡b1.0102040822点物质平衡fw0.9909081633、各小汽流量系数（二）汽轮机进汽参数(三）辅助计算（四）各加热器进出口参数计算（五）高加抽汽系数计算1、H1的抽汽系数10.055811454H1的疏水系数d,10.0558114543、泵入口静压P,pu1.35163给水泵内介质平均压力Ppj15.8638给水泵平均比焓hpj764.0

10、3给水泵介质平均比容vpu0.001113给水泵介质焓升pu37.99699507（六）除氧器抽汽系统计算4、除氧器出水系数c,41.020408163除氧器抽汽系数40.05337289（七）低加抽汽系数计算5、H5出水系数c，50.772510303H5的抽汽系数50.051339093H5疏水系数d,50.0513390937、H7的抽汽系数70.027188295H7的疏水系数d,70.103236099（八）凝汽系数1、小汽机抽汽系数xj0.0519181092、 凝汽器的质量平衡c0.549042141校核误差-0.0000473574（九）汽轮机内功计算H11、凝汽流做功c915

11、.4302466 1KG抽汽做功342.782、 抽汽流做功a,1各级抽汽量96522.01179抽汽流总内功a,j358.36807293、附加功量sg,k3.1066716164、汽轮机内功i1276.904991（十）汽轮机比热耗q02715.257462汽轮机绝对内效率i0.470270318汽轮机绝对电效率e0.459980804汽轮机热耗率q7826.413559汽轮机汽耗率d2.882383593汽轮机的进汽量D01729430.156校核误差给水流量Gfw1764724.649凝结水泵流量Gcp1336002.613凝汽量Dc949530.0355第一级抽汽量D196522.0

12、1179（十一）全厂热经济指标1、锅炉参数计算qrh629.425hb3401.562、 锅炉有效热量q12766.0378143、管道效率p0.9816414834、全厂效率cp0.4246698325、全厂发电标准煤耗系数r1.015829654相当于一千克标准煤29763.80887发电标准煤耗bs0.284814826、全厂热耗率qcp8345.0742177、全厂供电标准煤耗bns0.306252494（十二）反平衡校核1、锅炉输入热量qr2941.0290422、锅炉损失qb174.9912283、排污损失qbl17.108163274、全厂工质渗漏损失 qL33.82734694

13、5、厂用汽损失50.162776、凝汽流冷源损失1206.5201057、小汽机冷源损失120.25791638、化学补水冷源损失-1.9203293889、低加H8疏水冷源损失3轴封加疏水冷源损失0.1989360611.w汽流冷源损失0.756564112、暖风器损失49.13116813、管道散热损失8.54737830114、轴封汽散热损失0.58328491损失之和1613.181133汽轮机内功1327.847909正反平衡相对误差0.0383650252、 H2的抽汽系数20.084291057H2的疏水系数d,20.140102511再热器流量系数rh0.839036689给水泵出口比焓hpu802.0269951H3的抽汽系数30.02807846H3的疏水系数d,30.1722099716、H6的抽汽系数60.02470871H6的疏水系数d,60.0760478038、轴封加热器出水焓hw,sg138.6971418 出水温度tw,sg疏水温度td,838.26 H8疏水焓hd,8H8的抽汽系数80.030744991H8de 疏水系数d,80.1339810893、H4抽汽口抽汽系数和40.14019099