畢業(yè)設(shè)計（論文）300mw單元機組汽包水位控制系統(tǒng)分析、設(shè)計與仿真

1、華中科技大學(xué)文華學(xué)院畢業(yè)設(shè)計（論文）華中科技大學(xué)文華學(xué)院華中科技大學(xué)文華學(xué)院畢業(yè)設(shè)計（論文）畢業(yè)設(shè)計（論文）題目：300MW單元機組汽包水位控制系統(tǒng)分單元機組汽包水位控制系統(tǒng)分析、設(shè)計與仿真析、設(shè)計與仿真TheDesignOfBoilerFeedwaterControlSystemOfThe300MWThermalPowerUnit學(xué)生姓名：學(xué)號：070303011135學(xué)部（系）：機械與電氣工程學(xué)部機械與電氣工程學(xué)部專業(yè)年級：07級熱

2、能與動力工程級熱能與動力工程指導(dǎo)教師：職稱或?qū)W位：碩士2011年5月18日華中科技大學(xué)文華學(xué)院畢業(yè)設(shè)計（論文）IIAbstractFeedwaterControlSystemisoneofthemostimptantcontrolsysteminathermalPowerplant.Stabilizationofthedrumlevelisoneofessentialparameterwhichindicatedsafeoperatio

3、nofthedrumboiler.Drumlevelisaffectedbytheunitloadpresstemperatureofthedrumfeedwaterfluxetc.Becauseofusingdifferentequipmentatdifferentstagesitshouldapplydifferentcontrolmethods.Theeffectoffullrangefeedwatercontrolsystemd

4、oesnotoftenbesatisfiedwhenpowerunitisindifficultsituationbecauseofitsimperfect.IndertomaintainthelevelofthedrumwaterinrequestedvalueBasingonanalysisoffeedwateracterfirstlythissystemadoptstimingwhichismovedbysteamelectrom

5、otiontimingpumpadjustingvalve.Itutilizesbypassvalvestoregulatethefeedwaterusessingleimpulsetocontrolthelevelofdruminlowerload.Atthehighloadconditionchangetherotatingspeedofsteamelectricityfeedwaterpumpstoensurethewaterle

6、velofthedrumusingthreeimpulsetocontrolthelevelofdrum.Thelevelofsteamfeedwatercanbemeasurednicety.Nondisturbanceswitchingcanberealizedamongfeedwatervalvessteamelectricitydrivenpumpssinglethreeimpulse.Thatnotonlymeetthereq

7、uirementsofthewholecoursecontroloftheunitbutalsoensurethesatisfactyregulatingperfmanceoperatingeconomics.Italsohaveniceregulateperfmancecirculatingeconomy.Keywds:BoilerfeedwatercontrolThreeelementcontrolsystemSingleeleme