內(nèi)蒙古某電廠低壓加熱器疏水改造及其經(jīng)濟(jì)性分析.pdf

1、（分類：全日制碩士研究生題目：內(nèi)蒙古某電廠低壓加熱器疏水改造及其經(jīng)濟(jì)性分析英文題目：分類：全日制碩士研究生題目：內(nèi)蒙古某電廠低壓加熱器疏水改造及其經(jīng)濟(jì)性分析英文題目：ModificationofdrainingsystemoflowpressureheatersitsEconomicAnalysisofapowerplantinInnerMongolia研究生：尹勇學(xué)科名稱：熱能工程指導(dǎo)教師：沈炳耘教授研究生：尹勇學(xué)科名稱：熱能工程指導(dǎo)

2、教師：沈炳耘教授二○○九年五月二○○九年五月碩士學(xué)位論文碩士學(xué)位論文分類號(hào):學(xué)校代碼:10128UDC:學(xué)號(hào):20061103分類號(hào):學(xué)校代碼:10128UDC:學(xué)號(hào):20061103AbstractSaveenergyreducethelossisthemostrealisticsolutiontotheimbalancebetweensupplydemthemosteffectivewaywhilethecoalfiredpower

3、plantsintheenergyconservationisaveryimptantpartofthethermalsystemsfenergysavingconstantlyoptimizeimprovethethermalsystemtoenhancetheeconomicunit.Thisarticlestudiesonthecoldsourcelossofthermalsysteminefficientrecycleoflow

4、pressurecondensateinthermalpowerplant.ThispaperbasedonunderstingofthethermalacteristicsofaThermalpowerplant’sthermalsysteminInnerMongolia.Theusemeasureddataintheoperationprocessobjectoflowpressureheaterdraininthe3#4#lowp

5、ressureheaterdrainpumptoinstallcondensaterecoveryhyhobicwillreachthelevelofexptindertoachievelowvoltageheatersheatofthehyhobicrecoveryusetheapplicationofequivalententhalpymethodtoanalyzetheresultoflowpressheaterdraintran

6、sfmanalyzetheeconomicefficiencyofthermalsystemineveryoperationprocessitisconcludedthatuseapplicationofdraindumprecycletocondensatewaterheatin600WMunitispracticable.Referringtothefeigndomesticexperienceonpowerplantsthatha

7、sbeenequippedwithdrainpumpweproposeusingVVVFcontroltechnologytoreducethepowerconsumptioninlowpressuredrainpumpwecanchangethevalveregulationcontroloflowpressureheaterdrainpumptofrequencyconversiontimingcontrolsothattheuni

8、tcanadjustthemotspeedbasedondrainamountofunitloadthiscanchangetheoutputofdrainpumpeffectivelycontrolthelowincreasedrainagewaterlevel.AfterthetransfmtheunitusesdrainpumpfrequencyconversionTheuseofvariablefrequencyoperatio

9、nofdrainpumpcanrecyclethedrainthermalenergyitcanreducetheenergyconsumptioncausedbyexitcontrolvalvethrottleatlastitcaneffectivelyreducethenoloadlossofthepumpmotkeepthelowincreasedrainagewatersystemrunstablereducetherecond

10、itionexpensesmaintenancecost.Thoughcalculationscomparisonsweconcludethefollowingpoints:ifweinstalldrainpumpinlowpressureheateritwillimprovetheunitheatingeconomicefficiencyitwillhavetheeffectofenergyconservationconsumptio