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600MW等级直接空冷机组的电动给水泵配置分析.docx

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600MW等级直接空冷机组的电动给水泵配置分析 Abstract Thedemandforelectricityhasincreasedrapidlyinrecentyearsandtheneedforpowergenerationhasincreasedaswell.Asaresult,severalpowerplantshavebeenbuilttomeetthisdemand.Thesepowerplantsrequirevariousequipmenttooperateeffectively,andoneoftheseistheelectricfeedwaterpump. Theelectricfeedwaterpumpisessentialinpowergeneration,andassuch,itneedstobeconfiguredadequatelytoensureefficientpowerproduction.Thispaperanalysestheconfigurationoftheelectricfeedwaterpumpina600MWdirectair-cooledpowerplant. Introduction Directair-cooledpowerplantsaregainingpopularityinrecenttimesbecauseoftheirlowwaterconsumptionandreducedenvironmentalimpact.Oneofthecriticalcomponentsofadirectair-cooledpowerplantistheelectricfeedwaterpump.Thispumpisresponsibleforsupplyingwatertotheboiler,andassuch,itneedstobewellconfiguredtoensureefficientpowergeneration. ConfigurationoftheElectricFeedwaterPump Theelectricfeedwaterpumpinadirectair-cooledpowerplantcanbeconfiguredinvariousways.Thisconfigurationdependsonseveralfactorssuchasthepoweroutput,typeofboiler,andothers. Ina600MWdirectair-cooledpowerplant,theelectricfeedwaterpumpcanbeconfiguredasfollows: 1.MaterialofthePump:Theelectricfeedwaterpumpshouldbemadeofhigh-qualitymaterialssuchasstainlesssteelorbronze.Thesematerialsarecorrosionresistant,andtheycanwithstandhightemperatures. 2.PowerCapacity:Theelectricfeedwaterpumpshouldhaveahighpowercapacitytoensureadequatesupplyofwatertotheboiler.Apowercapacityof200-250kWisrecommendedfora600MWdirectair-cooledpowerplant. 3.TypeofPump:Theelectricfeedwaterpumpcanbeacentrifugalpumporapositivedisplacementpump.Thecentrifugalpumpisrecommendedforadirectair-cooledpowerplantbecauseitismoreefficientandrequireslessmaintenance. 4.HeadandFlowRate:Theelectricfeedwaterpump'sheadandflowrateshouldbewellcalculatedtoensureadequatewatersupplytotheboiler.Theheadshouldbebetween160-180m,whiletheflowrateshouldbe686-772m3/h. 5.OperationalControl:Theelectricfeedwaterpumpshouldbecontrolledwiththelatesttechnologysuchasavariablefr