汽轮机定滑压运行曲线测试方法研究

(,100045):,,;,,,;,200MW:;;;:TK26:A:100329171(2007)1220009204TestMethodofRated-slidingPressureOperationCurveofSteamTurbineLiuShuang2bai(NorthChinaElectricPowerResearchInstitute,Beijing100045,China)Abstract:Inordertoimprovetheoperationefficiencyofsteamturbimeinvariableconditions,accordingtofundamentaltheoryofrated2slidingpressureoperation,efficiencyofHPcylinderwasmeasuredtojudgethevalvepoint.CoordinatecomputationwasgivenusingmainsteamparametersandefficiencyofHPcylindercorrespondenttodifferenttestingconditionstogettherelationbetweenmainsteampressureandefficiencyofunit,aswellastherelationcurvebetweenoptimizedoperationpressureandloadwhichmeanrated2slidingpressureoperationcurve.Limitationofrated2slidingpressureoperationcurvewasproposedandspotdynamicadjustingmethodtosolvethelimitationwasalsoprovided.Finallyarealsamplewasofferedinwhichtheproposedmethodwassuccessfullyappliedtoone200MWunit.Keywords:steamturbine;slidingpressureoperationcurve;efficiencyofHPcylinder;coordinatecomputation0,,,,,,,,,,1:,,,;,1.11.1.1:12,34,12,3,3,4,9No.122007NORTHCHINAELECTRICPOWER,,1,P0,a,,P0,b,c,a,11.1.2Flugel,,2B,,,,,,B1;,,,,;B23ö4,B31ö2,B41ö3,B51ö52()1.1.3,3:(1),,,,,(2),,(3)234(4),,,,31.2,,,,,,,,,1.3,,,,01NORTHCHINAELECTRICPOWERNo.122007,,,2:;;()2.1(3,3,4),1:,,,2:,,2.24,,3,32?:3,,,,23,,,,2;,2,2,,,,,222,,,2,,2.3,,,3,,,,,,,,,44.1200MW,11:32,204.77MW,100%100%100%13.1%;26,180.48MW,100%100%23%0%4.2,,:190MW139MW2190MW,139MW190MW,,180MW,,,180MW,12,12,3,,1211No.122007NORTHCHINAELECTRICPOWER1200MW123456789öMW210.78204.77201.66193.01182.39180.48177.93172.11138.691ö%10010010010010010010074.81002ö%10010010010010010010074.81003ö%10010057.940.824.923.019.613.119.74ö%35.013.112.511.4000001öMPa12.5512.5812.5912.5612.5312.5212.4412.159.812öMPa12.4412.3312.3612.3812.3912.3912.3211.829.713öMPa12.4212.3311.6710.449.018.818.578.306.744öMPa11.2710.2110.069.668.938.818.658.396.81()öMPa12.7312.6912.7212.7612.8212.8112.7512.8410.06()ö533.9534.7534.4533.2534.1535.3533.5534.9533.9()öMPa12.7412.7812.8112.8012.8212.8112.7312.8210.05()ö531.0532.2531.8530.6530.9531.1529.1531.2531.0öMPa2.632.532.492.372.212.182.122.081.66ö320.8317.0316.3312.1305.0303.4300.0300.3304.7ö%83.3783.5982.7581.6581.6482.0681.9281.1281.80322190MW139MW3190MW190MW139MW139MWöMW204.1191.5191.4139.4139.4ö(th-1)642.0600.0599.6430.0425.0öMPa12.7012.7011.9312.7010.00ö535.0535.0535.0535.0535.0ö%83.7081.5883.6473.0181.70ö(m3kg-1)0.0270.0270.0290.0270.035ö(m3s-1)61.96957.91561.97941.50653.182ö%91.5191.5091.5091.4991.49ö[kJ(kWh)-1]881888518853903489824.3,,44200MW4.4,:204MW3,180MW2:(1),;(2),(4);,12,325,,,,[1],..:,1987.[2]..:,1988.:2007210209:(1973-),,,21NORTHCHINAELECTRICPOWERNo.122007