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燃?xì)廨啓C(jī)部分計(jì)算,,,,,,,余熱鍋爐部分計(jì)算,,,,,,,,汽輪機(jī)部分,,,,除氧器部分,,,,冷凝器部分,,,,煙筒部分,,,,二號(hào)加熱器,

,,,,,,,,,,,,,,,汽機(jī)高壓進(jìn)氣量D0ˊ(t/h),126,,,,,,,,,,,,,,,,

已知及選取值:,,,,,,,,,,,,t/h,,,汽機(jī)低壓進(jìn)氣量D0〞(t/h),17.20202138,,,,,,,,,,,,,,,,

燃?xì)廨啓C(jī)軸功率Pgt(KW),77100,,燃料熱值Hu(KJ/Kg),56263,,,輸入煙氣焓Qr(KJ/Kg),1075.0079,,總煙氣利用能(KJ/s),151509.4563,,,,汽機(jī)高壓蒸汽進(jìn)氣壓力P0′(MPa),8,,,出水量,160.519623,,,排氣冷凝后溫度,30,,,煙筒中煙氣進(jìn)氣溫度,130,,,進(jìn)汽溫度,86

大氣溫度Ta(K),288,,進(jìn)氣道壓損率εc,0.01,,,排煙溫度tpy(℃),130,,鍋爐高壓蒸汽最高流量(Kg/s),43.04563868,154.9642993,,,汽機(jī)高壓蒸汽進(jìn)氣溫度t0′(℃),550,,,出水壓力,0.12,,,排氣冷凝后焓值,125.6643,,,煙氣進(jìn)氣焓,210,,,進(jìn)汽壓力,0.06

大氣壓力Pa(Mpa),0.1013,,燃燒室壓損率εb,0.03,,,排煙焓hpy(KJ/Kg),210,,鍋爐低壓蒸汽最高流量(Kg/s),51.30174933,184.6862976,,,汽機(jī)高壓蒸汽進(jìn)氣焓h0′(KJ/Kg),3519.74,,,出水溫度,104,,,冷卻水進(jìn)入溫度,15,,,煙氣進(jìn)氣流量(t/h),634.5,,,進(jìn)汽焓,2434.9419

壓氣機(jī)內(nèi)效率ηc,0.9,,排氣道壓損率εt,0.03,,,排煙損失q2,0.195347402,,取高壓蒸汽流量(Kg/s),35,126,,,汽機(jī)低壓蒸汽進(jìn)氣壓力P0″(MPa),0.72,,,出水焓,435.95,,,冷卻水進(jìn)入焓,63.5142,,,煙氣排氣溫度,80,,,熱水進(jìn)入溫度,44.64

透平內(nèi)效率ηt,0.92,,煙氣泄露系數(shù)μc1,0.05,,,散熱損失q5,0.005,,低壓蒸汽流量(Kg/s),9.588784174,34.51962303,,,汽機(jī)低壓蒸汽進(jìn)氣溫度t0″(℃),250,,,除氧器加熱給水參數(shù):,,,,冷卻水排出溫度,20,,,煙氣排氣焓,128.5,,,熱水進(jìn)口焓,187.3783

燃燒室內(nèi)效率ηb,0.98,,壓縮比π,17,,,灰渣損失q6,0,,,,,,,汽機(jī)低壓蒸汽進(jìn)氣焓h0″(KJ/Kg),2953.3,,,壓力,0.72,,,冷卻水排出焓,83.9548,,,煙氣排氣流量(t/h),634.5,,,熱水出口溫度,60

整體效率ηm,0.99,,燃燒溫度T3﹡(K),1623,,,化學(xué)未完全燃燒損失q3,0,,,,,,,高壓進(jìn)氣處熵值S0′(KJ/(Kg.K)),6.8775,,,溫度,250,,,冷卻水量(t/h),6643.867328,,,換熱器換熱量(KW),14364.375,,,熱水出口焓,251.1591

Cpa[KJ/(Kg*K)],1.03,,ka,1.386,,,機(jī)械未完全燃燒損失q4,0,,,,,,,在1MPa進(jìn)汽處:,,,,比焓,2953.3,,,冷卻水密度,1000,,,熱水進(jìn)入溫度,20,,,熱水流量(t/h),500

Cpg[KJ/(Kg*K)],1.2,,Kg,1.315,,,鍋爐總損失∑q,0.200347402,,,,,,,查P-S圖可知:,,,,0.06MPa抽汽加熱后參數(shù):,,,,冷卻水流速(m/s),1.5,,,熱水進(jìn)口焓,83.9548,,,換熱量(KW),8858.444444

燃料碳?xì)浔葂,3.72,,過量空氣系數(shù)α,1.1,,,鍋爐熱效率ηgl,0.799652598,,,,,,,抽汽溫度t1′(℃),238.93,,,壓力,0.06,,,所需流通截面,1.230345801,,,熱水流量(t/h),500,,,蒸汽冷凝后出口溫度,70

計(jì)算部分:,,,,,,,鍋爐有效利用熱Q1(KJ/Kg),859.6328605,,,,,,,抽汽焓h1′(KJ/Kg),2918.1464,,,溫度,70,,,管徑(m),0.025,,,熱水出口焓,187.3783,,,蒸汽冷凝后出口焓,292.9962

⑴在壓縮機(jī)內(nèi),,,⑵在燃燒室中,,,,給水溫度tgs(℃),104,,,,,,,抽汽量D1(t/h),60,,,比焓,292.9962,,,管數(shù),2506.442002,,,出口熱水溫度,44.64,,,蒸汽抽汽量(t/h),14.88851935

T1*(K),288,,T3*(K),1623,,,給水壓力Pgs(Mpa),0.12,,,,,,,抽汽后蒸汽流量D1′,66,,,流量,14.8,,,取管數(shù),2507,,,查得換熱器換熱系數(shù),116,,,換熱器換熱系數(shù),3000

T2s*(K),633.9742588,,qb(KJ/Kg),1255.011682,,,給水焓hgs(KJ/Kg),435.95,,,,,,,在0.72MPa進(jìn)氣處:,,,,排氣冷卻后參數(shù):,,,,傳熱系數(shù)K(W/(m2℃),3000,,,逆流時(shí)的對(duì)數(shù)平均溫差,71.93651879,,,逆流時(shí)的對(duì)數(shù)平均溫差,25.67867077

△Tcs(K),345.9742588,,燃料空氣比f,0.022761391,,,高壓過熱蒸汽壓力Pgy(MPa),8,,,,,,,查P-S圖可知:,,,,壓力,0.005,,,熱損失系數(shù),0.98,,,溫差修正系數(shù),0.97,,,溫差修正系數(shù),0.97

△Tc(K),384.4158431,,f在0.02~0.03之間,0.0227614符合要求,,,,高壓過熱蒸汽溫度tgy(℃),550,,,,,,,原高壓蒸汽焓h2′(KJ/Kg),2846.327,,,溫度,30,,,傳熱量(KW),36969.03939,,,修正溫差,69.77842323,,,有效平均溫差,24.90831064

T2*(K),672.4158431,,,,,,高壓過熱蒸汽焓hgy(KJ/Kg),3519.74,,,,,,,兩股蒸汽匯合后總蒸汽焓h2(KJ/Kg),2868.443672,,,比焓,125.6643,,,逆流時(shí)的對(duì)數(shù)平均溫差,13.923616,,,熱損失系數(shù),0.95,,,需要傳熱面積,118.5473739

壓氣機(jī)壓縮功ωc,395.9483184,,,,,,低壓過熱蒸汽壓力Pdy(MPa),0.72,,,,,,,查P-h圖可知:,,,,補(bǔ)水參數(shù):,,,,溫差損失系數(shù),0.97,,,換熱量(KW),13646.15625,,,選取管子直徑(m),0.025

,,,,,,,低壓過熱蒸汽溫度tdy(℃),250,,,,,,,匯合后蒸汽溫度t2(℃),211.2,,,壓力,0.1013,,,有效平均溫差,13.50590752,,,需要的傳熱面積(m2),1635.320697,,,管厚,0.0025

⑶在透平內(nèi),,,⑷整體性能,,,,低壓過熱蒸汽焓hdy(KJ/Kg),2953.3,,,,,,,匯合后蒸汽熵S2(KJ/(Kg.K)),6.9236,,,溫度,30,,,需要傳熱面積,912.4165197,,,翅化率,23.4,,,熱水流速(m/s),1.5

πt,15.835347,,比功ωn(KJ/Kg),466.5935406,,,高壓蒸汽流量Dgy(t/h),126,,,,,,,匯合后蒸汽流量D2(t/h),83.20202138,,,比焓,138.287,,,每根管長,4.63392412,,,,,,,流通截面積(m2),0.092592593

T4s﹡(K),837.4430027,,空氣流量qm(Kg/s),165.2401786,,,低壓蒸汽流量Ddy(t/h),34.51962303,,,,,,,在0.06MPa抽汽處:,,,,加熱除氧器用汽量,17.31760165,,,取標(biāo)準(zhǔn)長,5,,,,,,,需要管子數(shù),188.6280807

△Tts(K),785.5569973,,燃料流量qmf(Kg/s),3.761096383,,,總蒸汽流量D(t/h),160.519623,,,,,,,查P-S圖可知:,,,,補(bǔ)給水流量(t/h),42.68239835,,,校正傳熱面積,984.4965978,,,,,,,取整數(shù),190

△Tt(K),722.7124375,,循環(huán)效率ηgt,0.364348537,,,鍋爐額定容量Dc(t/h),165,,,,,,,抽汽溫度t3′(℃),86,,,汽機(jī)排氣量(t/h),68.40202138,,,超出范圍,0.078999094,,,,,,,管子長度,3.972084325

排氣溫度T4﹡(K),900.2875625,,煙氣流量qmgs(Kg/s),176.2490282,,,,,,,,,,,抽汽焓h3′(KJ/Kg),2434.9419,,,,,,,0.1到0.2之間,符合要求,,,,,,,取標(biāo)準(zhǔn)長度,4

透平膨脹功ωt(KJ/Kg),867.254925,,煙氣焓hmgs(KJ/Kg),1075.0079,,,,,,,,,,,抽汽量D3(t/h),14.88851935,,,,,,,,,,,,,,,,

,,,,,,,,,,,,,,,排氣壓力Dpq(Mpa),0.005,,,,,,,,,,,,,,,,

,,,,,,,,,,,,,,,排氣溫度tpq(℃),33,,,,,,,,,,,,,,,,

,,,

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