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1、■■●々01Ⅲ口E掌中科投大滓碩士學(xué)位論文州珠1=IbJ300MW汽輪機(jī)17能研究’#ft巾衍幾學(xué)科0、啦措廿救帥替緋I|1lJ張打電動(dòng),』1螗州l。敬授21105年I】JJ108幽j0m%跳華中科技大學(xué)碩士學(xué)位論文ABSTRACTWiththefastgrowingofcconomyChinahasbecomethesecondlargestenergyconsumptioncountryHowevertheenergyconsump

2、tionperunitproductinChinaismuchhigllerthanthatoftheadvancelevelintheworldNowadays,coalaccountsfor75%ofthefirstenergyofChinaCorrespondinglytheelectricityproducedbycoalpowerplantsaccountsformorethan75%ofthetotalelectricity

3、Therefore,reducingthecoalassumptionofpowerplantsisaveryimportancetaskinenergysavinginChinaThedomesticallyproduced300MWpowerplantisthemainforceforelectricitygeneration,butitsefficiencyisobviouslylowerthanthatofimportedpow

4、erplantThepotentialofenergysavingishugeFourdomesticallyproducedwithimportedtechnology300MWunitswereinstalledinZhujiangpowerplantBecauseofdesign,manufacturing,installment,operationandmaintenance,afterbringingintooperation

5、,thesefourunitshaveshownavarietyofproblems,suchasthesteamturbinemainbodythethermodynamicsystem,thecondenservacuumsystem,thecondensatepump,thecirculatepumpandSOonTheseproblemsdirectlyaffectthesecurityandefficiencyofpowerp

6、lantsThispapermainlystudiesthepropertiesofhomemade300MWturbineunitthermodynamicssystemandtheeconomiesofenergyconsumeinZhujiangpowerplantsThispaperelaboratesthecommonexistenceproblemsonthedomesticallyproduced300MWunits,di

7、scussestheapproachesfortheeverysavingusingtheenergylossquantitativelyanalysistheoryandtheindustrialtestmethodonthefiled,Thispaperproposesseveralmethodsforenergysavingsuchaseliminatingleakingoutsideofthermalsystemandequip

8、ment,decreasingleakinginside,utilizingworkingmaterialefficientlyAlso,thispaperreseachsonmethodsofimprovementonsteamcondenservacuum,andimprovementmethodsuchasfirstlayerofimpellerisconcelledonwatercondensingpumpThosemeasur

9、eshavebeencompletedaccordingtheoverhaulplanofZhujiangpowerplantThispaperprovidestheeffectanalysisforsystemoptimizationthroughtesting,Theresultsoftestsformerandafterthealterationoftheunitandtheworkingconditionshowsthatthe

10、problemsoftheunitbeforealterationaresolvedinacertainextent,theperformancesareimprovedgreatlythecontrolsparametersareallwithintheregulations,andthepropertiesareimprovetoamoredesirableandmoreexcellentqualityAftertheimprove

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