熱力系統(tǒng)的簡捷計算過程及結果.xls

1、簡捷熱平衡計算項目單位各計算點H1H1H2H2H3H3H4H4H5H5抽汽參數(shù)抽汽壓力PrjPrjMPa0.02260.06390.22090.3710.584抽汽管道壓損?Pj?Pj％44444抽汽焓hjhjKJKg2494.52640.12851.92958.23054.2加熱器上端差δtsδts℃2.82.82.82.82.8加熱器下端差δtxδtx℃5.6005.65.6升壓量平均比容泵效率給泵焓升tb小汽機抽汽份額小機排氣焓3

2、2.7270.001127785%43.419103410.0568908592449.2加熱器參數(shù)加熱器工作壓力pnjnjMPa0.0216960.0613440.2120640.356160.56064加熱器壓力飽和溫度tbhbh℃61.856715986.52325189122.0919905139.4867394156.2047552加熱器出口水溫twtw℃59.056715983.72325189119.5919905136.

3、6867394153.4047552加熱器水側壓力MPa2.5792.5792.5792.5792.579加熱器出口水焓hwhwKJKg249.2914573352.5344801503.662453576.3805273648.1184569加熱器疏水溫度tsts℃38.9021444286.52325189122.0919905125.1919905142.2867394加熱器疏水焓hshsKJKg162.8757369362.31

4、72428512.6106472525.8883259599.0359463輔助蒸汽項目12345輔助蒸汽份額afjfj0.00012050.000050890.00004150.00004150.0000415輔助蒸汽焓值hfjfjKJKg3063.33054.22331.72331.72326.8去處1、2、3、4、5、6流向軸封加熱器，7、8、9、10、11、12流向凝汽器放熱量2645.52636.41913.91913.919

5、09功量0.049633950.0543912320.074338950.074338950.0745423軸加疏水焓417.8tqrtqr參數(shù)整理H1H1H2H2H3H3H4H4H5H5給水焓升tjtjKJKg113.1733396103.2430228151.127972972.7180742971.73792966蒸汽放熱量qjqjKJKg2331.6242632277.7827572500.52432.3116742455.16

6、4054疏水放熱量rjrjKJKg199.44150590173.353845873.1476204301、2、4、5、7、8、9為放流式，3、6為匯集式抽汽系數(shù)計算ɑ9ɑ8ɑ7ɑ6ɑh0.0573509360.1104380040.0490749210.0318369460.751299192核對42.90283.83336.14723.2860.0574577790.1122758380.0484109450.0311864680正

7、平衡計算H1H1H2H2H3H3H4H4H5H5抽汽流做功KJKg47.8405685544.708867553.8622482225.3940158423.46268387凝汽流做功KJKg981.7582829附加功量(輔助汽做功)KJKg53.41567553汽輪機內(nèi)功WiWiKJKg1358.085074循環(huán)吸熱量QKJKg2694.467566實際循環(huán)效率η0.504027249反平衡計算凝汽流冷源損失KJKg1200.348

8、65712712冷源損失KJKg134.3940863低加H1H1、H2H2疏水冷源損失KJKg1.592792592軸加疏水冷源損失KJKg0.09503665損失之和KJKg1336.4305651358.037001實際循環(huán)效率0.504009407Δ=全廠熱經(jīng)濟性指標計算汽耗量DKJS743.9188691電功率Nd1000000KW汽耗率dKg(Kw.h)2.678107929ηjxηd0.9898熱耗率qKg(Kw.h)72

9、16.074952ηg0.93標準煤耗率bbg(Kw.h)270.1505328ηgd0.98全年標準煤耗量Bbta1891053.73年利用小時數(shù)n7000h等效焓降法計算抽汽等效焓降級抽汽效率計算項目單位H1H1H2H2H3H3H4H4H5H5等效焓降KJKg165.25151.1562143507.7777048578.8746582657.4659913效率ηiηi0.070873340.066361120.2030704680

10、.2379936190.267789026再熱段以上排擠抽汽造成的再熱器系熱量增量項目單位Qzr8Qzr8KJKg647.8Qzr9Qzr9KJKg566.4724758循環(huán)吸熱量減少ΔQΔQKJKg12.95231291裝置效率相對提高量ΔηΔηi0.000554588熱耗率下降ΔqΔqKg(Kw.h)4.001945756標準煤耗下降ΔbbΔbbg(Kw.h)0.1498221388號加熱器7號加熱器5號加熱器4號加熱器3號加熱器新

11、蒸汽等效焓降增加（多做功）ΔΗΔΗKJKg0.1650809581.6065765290.3364430250.2173118580.247097238循環(huán)吸熱量減少ΔQΔQKJKg0.1232640732.571739094裝置效率相對提高量ΔηΔηi0.0001667110.000222710.0002465110.0001592380.000181059熱耗率下降ΔqΔqKg(Kw.h)1.2029998651.60709551.

12、7788408731.1490711091.306537542標準煤耗下降ΔbbΔbbg(Kw.h)0.0450370950.0601653540.0665950410.0430181470.048913269設凝汽器過冷度為20kjkg20kjkg新蒸汽等效焓降下降（少做功）ΔΗΔΗKJKg0.90012192裝置效率相對降低量ΔηΔηi0.000660115熱耗率增加ΔqΔqKg(Kw.h)4.763438586標準煤耗增加ΔbbΔ

13、bbg(Kw.h)0.178330392散熱損失的定量分析加熱器利用系數(shù)ηrnrn=0.98=0.98單位9號加熱器8號加熱器7號加熱器6號加熱器5號加熱器新蒸汽等效焓降下降（少做功）ΔΗΔΗKJKg1.3037845232.6728813090.9678902140.520482750.294549613循環(huán)吸熱量減少ΔQΔQKJKg0.6630148270.822065223裝置效率相對降低量ΔηΔηi0.0007101280.00

14、16570480.0007098490.0003815960.000215916熱耗率增加ΔqΔqKg(Kw.h)5.12433769211.957381035.1223224682.753624241.558062447標準煤耗增加ΔbbΔbbg(Kw.h)0.1918414880.4476523420.1917660440.1030883220.058329688加熱器停運（汽側切除）加熱器停運定量分析單位9號加熱器停運8號加熱器停

15、運7號加熱器停運6號加熱器停運5號加熱器停運新蒸汽等效焓降增加ΔΗΔΗKJKg63.88544164139.509934664.6571249337.0968589819.21063033循環(huán)吸熱量增加ΔQΔQKJKg142.5293363323.9836808174.7511046118.749511371.73792966裝置效率相對降低量ΔηΔηi0.0058050130.0163272330.0166793820.0164372

16、510.012370941熱耗率增加ΔqΔqKg(Kw.h)41.88941158117.8185395120.3596717118.612436989.26963709標準煤耗增加ΔbbΔbbg(Kw.h)1.5682274554.4108107844.5059439714.4405321763.342016287高加旁路泄漏高加旁路泄漏定量分析新蒸汽等效焓降增加ΔΗΔΗKJKg268.0525011循環(huán)吸熱量減少ΔQΔQKJKg64

17、1.2641216裝置效率相對降低量ΔηΔηi0.034722013熱耗率增加ΔqΔqKg(Kw.h)250.5566494標準煤耗增加ΔbbΔbbg(Kw.h)9.380170352疏水泵的定量分析疏水流出系統(tǒng)的能損ΔΗ1ΔΗ1KJKg4.1075794834.107579483疏水熱量回收至各級加熱器，獲得作功ΔΗ2ΔΗ2KJKg4.2493975852.076437639新蒸汽等效焓降變化ΔΗΔΗKJKg0.1418181022.

18、031141844裝置效率相對降低量ΔηΔηi0.0001039460.001490798熱耗率增加ΔqΔqKg(Kw.h)0.75008322110.75771065標準煤耗增加ΔbbΔbbg(Kw.h)0.0280811080.402739894軸封回收利用系統(tǒng)的能量回收及利用單位αf1αf1αf2αf2αf3αf3αf4αf4αf5αf5αfifi軸封漏汽的做功損失ΔΠf1ΔΠf1KJKg0.1665129250.03689270