热力系统例题用Excel电子表格计算

1、序序号号名名称称符符号号单单位位符符号号来来源源或或公公式式数数值值1蒸汽干度xf假定0.97002连续排污扩容器汽焓hfkj/kg表7-32772.55003连续排污扩容器水焓hfkj/kg表7-3744.70004湿蒸汽的焓值hfkj/kghf=xfhf+(1-xf)hf2711.71455汽包连续排污流量份额bl已知0.00286锅炉汽包排污水焓hblkj/kg表7-31738.04007排污扩容器的热效率f已知0.98008锅炉扩容器产生的蒸汽份额ff=(bl(hbl*f-hf)/(hf-hf)0.00149厂用汽份额（汽源为高压缸排汽）ap(h)已知0.002810厂用汽回水率（汽源

2、为高压缸排汽）ap(h)已知0.000011厂用汽份额（汽源为中压缸排汽）ap(i)已知0.002812厂用汽回水率（汽源为中压缸排汽）ap(i)已知0.000013汽包连续排污流量份额bl已知0.002814主蒸汽管道蒸汽泄露份额bo已知0.002815再热蒸汽冷端管道蒸汽泄露份额rh(c)已知0.002816凝汽器补充水流量份额mama=ap(h)(1-ap(h)+ap(i)(1-ap(i)+(bl-f)+bo+rh(c)0.012617新蒸汽的份额0已知1.000018省煤器进口给水流量比例份额fwfw=0+bo+bl1.005619高压加热器h1抽汽焓h1kj/kg表7-43128.3

3、30020高压加热器h1 p下饱和水焓hw1dkj/kg表7-41044.970021高压加热器h1出口水焓hw1kj/kg表7-41185.130022高压加热器h1进口水焓hw2kj/kg表7-4996.920023加热器效率h已知0.980024高压加热器h1 抽汽系数11=fw(hw1-hw2)/h/(h1-hw1d)0.092725高压加热器h1 疏水份额s1s1=10.092726高压加热器h2进口水焓hw3kj/kg表7-4860.810027汇入h2流量份额a表7-20.000228高压缸汽门门杆漏气焓hakj/kg表7-23379.360029高压加热器h2 p下饱和水焓hw

4、2dkj/kg表7-4859.510030高压缸浸缸流量占比份额ng表7-20.010031高压缸浸缸焓值hng表7-23325.300032高压加热器h2抽汽焓h2kj/kg表7-42987.800033高压加热器h2 抽汽系数22=fw(hw2-hw3)/h-a(ha-hw2d)-ng(hng-hw2d)-s1(hw1d-hw2d)/(h2-hw2d)0.045834高压加热器h1 疏水份额s2s2=1+2+a+ng0.148635高压缸汽门门杆漏气流量占比份额b表7-20.000136高压缸轴封漏气流量占比份额n表7-20.000137高压缸轴封漏气流量占比份额m表7-20.000438

5、高压缸轴封漏气流量占比份额l表7-20.001839高压缸轴封漏气流量占比份额l1表7-20.001640高压缸轴封漏气流量占比份额m1表7-20.000441高压缸轴封漏气流量占比份额n1表7-20.000042高压缸排汽j表7-20.004243ap(c)表7-20.002844再热蒸汽份额rhrh=0-a-b-n-m-l-l1-m1-n1-j-ng-1-2-ap(h)-ap(c)0.837245中压缸汽门门杆漏气焓值hkkj/kg表7-23538.700046高压加热器h3进口水焓hw4kj/kg表7-4729.990047中压缸汽门门杆漏气流量占比份额k表7-20.004248高压加热

6、器h3抽汽焓h3kj/kg表7-43342.500049高压加热器h3 p下饱和水焓hw3dkj/kg表7-4726.130050高压加热器h3 抽汽系数33=(1/(h3-hw3d)*(fw(hw3-hw4)h-k(hk-hw3d)-s2(hw2d-hw3d)0.039251高压加热器h3 疏水份额s3s3=s2+3+k0.192152除氧器h4抽汽焓h4kj/kg表7-43161.600053除氧器h4被加热水进口焓hw5kj/kg表7-5591.200054高压缸轴封漏汽汇入凝汽器的份额l表7-20.001855高压缸轴封漏汽汇入凝汽器焓hlkj/kg表7-23017.100056高压缸

7、轴封漏汽汇入凝汽器的份额l1表7-20.001657高压缸轴封漏汽汇入凝汽器焓hl1kj/kg表7-23325.300058除氧器h4被加热水出口焓hw4kj/kg表7-2723.340059除氧器h4 抽汽系数44=(1/(h4-hw5)(fw(hw4-hw5)/h-l(hl-hw5)-l1(hl1-hw5)-s3(hw3d-hw5)-f(hf-hw5)0.038160除氧器主凝结水份额c4c4=fw-4-l-l1-s3-f0.770661低压加热器h5抽汽焓h5kj/kg表7-43004.350062低压加热器h5 p下饱和水焓hw5dkj/kg表7-4467.350063低压加热器h5

8、进口水焓hw6kj/kg表7-4423.960064低压加热器h5 抽汽系数55=(c4(hw5-hw6)/h)/(h5-hw5d)0.051865低压加热器h5 疏水份额s5s5=50.051866低压加热器h6 进口水焓hw7kj/kg表7-4338.660067低压加热器h6抽汽焓h6kj/kg表7-42854.520068低压加热器h6 p下饱和水焓hw6dkj/kg表7-4381.530069低压加热器h6 抽汽系数66=(1/(h6-hw6d)/(c4(hw6-hw7)/h-s5(hw5d-hw6d)0.025370低压加热器h6 疏水份额s6s6=s5+60.077271低压加热

9、器h7抽汽焓h7kj/kg表7-42660.600072低压加热器h7 进口水焓hw8kj/kg表7-4213.710073低压加热器h7 p下饱和水焓hw7dkj/kg表7-4262.950074低压加热器h7 抽汽系数77=(1/(h7-hw7d)/(c4(hw7-hw8)/h-s6(hw6d-hw7d)0.037275低压加热器h7 疏水份额s7s7=s6+70.114376低压加热器h8抽汽焓h8kj/kg表7-42581.190077低压加热器h8 p下饱和水焓hw8dkj/kg表7-4172.180078排汽焓hwccpkj/kg表7-4137.150079高压缸门汽门门杆漏气汇入

10、轴封加热器流量份额b表7-20.000180高压缸门汽门门杆漏气汇入轴封加热器焓值hbkj/kg表7-23379.360081轴封冷却器 p下饱和水焓hsgkj/kg表7-4335.640082高压缸轴封漏气汇入轴封加热器焓值hnkj/kg表7-23017.100083高压缸轴封漏气汇入轴封加热器流量份额n1表7-20.000084高压缸轴封漏气汇入轴封加热器焓值hn1kj/kg表7-23325.300085中压缸轴封漏气汇入轴封加热器流量份额r表7-20.000186中压缸轴封漏气汇入轴封加热器流量份额hrkj/kg表7-23134.900087低压缸轴封汇入轴封加热器流量份额t表7-20.

11、000388低压缸轴封汇入轴封加热器焓值htkj/kg表7-22716.200089低压加热器h8、轴封冷却器sg抽汽系数88=(1/(h8-hw8d)/(c4(hw8-hwccp)/h-s7(hw7d-hw8d)-b(hb-hsg)-n(hn-hsg)-n1(hn1-hsg)-r(hr-hsg)-t(ht-hsg)0.020090低压加热器h8、轴封冷却器sg疏水份额s8s8=s7+80.134491轴封压力调节器汇入热井流量份额v表7-20.000692给水泵小汽轮机耗汽份额t已知0.031693ab(h)已知0.000094qp(i)已知0.002895rx已知0.002896凝汽系数（

12、由热井物质平衡）cc=c4+s8+b+n+n1+r+t+v+t+ap(h)+(1-ab(h)+qp(i)(1-ap(i)+(bl-f)-bo-rx0.590997汽轮机的总抽汽系数18i18i=1+2+3+4+5+6+7+80.350298中压缸轴封漏气汇入轴封压力调节器流量份额p表7-40.000699轴封压力调节器汇入低压缸轴封流量份额s表7-40.0007100凝汽系数（由汽轮机物质平衡）cc=1-(18i)-ng-a-b-k-t-n-m-l-l1-m1-n1-p-r-t-s-ap(h)-ap(i)-rh(c)0.5894101机组发电机实际发出功率pekw已知586960.000011

13、0机组的机电效率mg已知mg=mg0.9844111汽轮机机组的总输出功率pekwpe=pe/mg596279.8541112第1级通汽流量份额11=0-b-l1-m1-n10.9977113第2级通汽流量份额22=1-ng0.9878114第3级通汽流量份额33=2-10.8951115第4级通汽流量份额44=3-2-l-m-n-k-rh(c)-ap(h)0.8400116第5级通汽流量份额55=4-30.8008117第6级通汽流量份额66=5-4-r-p-ap(i)-t0.7276118第7级通汽流量份额77=6-50.6758119第8级通汽流量份额88=7-60.6505120第9级

14、通汽流量份额99=8-70.6133121第10级通汽流量份额1010=9-80.5933122汽轮机高压缸入口焓h0kj/kg表7-33365.8600123再热器出口焓horh(b)kj/kg表7-33540.1800124排汽焓hckj/kg表7-42328.9900125第1级通汽流量的焓降h1kj/kgh1=h0-hng40.5600126第2级通汽流量的焓降h2kj/kgh2=hng-h1196.9700127第3级通汽流量的焓降h3kj/kgh3=h1-h2140.5300128第4级通汽流量的焓降h4kj/kgh4=horh(b)-h3197.6800129第5级通汽流量的焓降

15、h5kj/kgh5=h3-h4180.9000130第6级通汽流量的焓降h6kj/kgh6=h4-h5157.2500131第7级通汽流量的焓降h7kj/kgh7=h5-h6149.8300132第8级通汽流量的焓降h8kj/kgh8=h6-h7193.9200133第9级通汽流量的焓降h9kj/kgh9=h7-h879.4100134第10级通汽流量的焓降h10kj/kgh10=h8-hc252.2000135汽轮机汽耗d0d0kj/kgd0=pe/(110ihi)1771.3107136给水量dfwkj/kgdfw=fwd01781.2301137第1级加热器疏水ds1kj/kgds1=s

16、1d0164.1997138第2级加热器疏水ds2kj/kgds2=s2d0264.7533139第3级加热器疏水ds3kj/kgds3=s3d0340.1808140第5级加热器疏水ds5kj/kgds5=s5d091.8206141第6级加热器疏水ds6kj/kgds6=s6d0136.6791142第7级加热器疏水ds7kj/kgds7=s7d0202.5085143第8级加热器疏水ds8kj/kgds8=s8d0237.9790144再热蒸汽量drhkj/kgdrh=rhd01482.8854145除氧器进水量dc4kj/kgdc4=c4d01365.0443146主蒸汽管道蒸汽泄露量

17、db0kj/kgdb0=b0d04.9597147再热蒸汽管道冷端管道蒸汽泄露量drx(c)kj/kgdrx(c)=rx(c)d04.9597148第1级抽汽d1kj/kgd1=1d0164.1997149第2级抽汽d2kj/kgd2=2d081.1460150第3级抽汽d3kj/kgd3=3d069.4801151第4级抽汽d4kj/kgd4=4d067.4593152第5级抽汽d5kj/kgd5=5d091.8206153第6级抽汽d6kj/kgd6=6d044.8585154第7级抽汽d7kj/kgd7=7d065.8293155第8级抽汽d8kj/kgd8=8d035.4706156汽

18、轮机排汽dckj/kgdc=cd01046.6761157小汽轮机的耗汽量dtkj/kgdt=td055.9380158锅炉连续排污量dblkj/kgdbl=bld04.9597159厂用汽（来自高压缸）dap(h)kj/kgdap(h)=ap(h)d04.9597160厂用汽（来自中压缸）dap(i)kj/kgdap(i)=ap(i)d04.9597161hrhkj/kg图7-162987.8000162锅炉过热器出口焓hbkj/kg表7-33379.1900163机组热耗q0kj/hq0=(dfw-dbl)(h0-hw1)+drh(horh(b)-hrh)+dap(h)(hb-hrh)+d

19、ap(i)(hb-h4)+dbo(hb-h0)+dbo(hb-h0)+drh(c)(hb-hrh)+dbl(hb-hrh)4699651195.1312164热耗率q0kj/(kwh)q0=q0/pe8006.7657165绝对电效率ee=3600/q00.4496166省煤器进口给水焓hfwkj/kg已知1184.3600167hinrh(b)kj/kg表7-32982.2200168锅炉热负荷qbkj/hqb=dbl(hbl-hfw)+(dfw-dbl)(hb-hfw)+drh(horh(b)-hinrh(b)4728748395.7322169管道热效率pp=q0/qb0.9938170

20、补充水焓hw,makj/kg已知104.7700 171hrh(t)kj/kg已知2987.8000172新蒸汽管道散热损失qp1kj/hqp1=(dfw-dbl)(hb-h0)23677684.6364173再热蒸汽冷端管道散热损失qp2kj/hqp2=drh(hrh-hinrh(b)8274500.4533174主给水管道散热损失qp3kj/hqp3=dfw(hw1-hfw)1371547.1658175管道带热量工质泄露热损失qp4kj/hqp4=db0(hb-hw,ma)+drx(c)(hinrh(b)-hw,ma)30445133.2139176厂用蒸汽管道散热损失qp5kj/hqp5=dap(h)(