DEH伺服阀故障原因分析

DEH伺服阀故障原因分析

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时间:2019-10-01

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5、ndapplicationofprofessionalpapersBBShomepageusingrepairdatadownloadonlinetutorialsautomationtrainingtechnicalseminarprizeessayprofessionalbookcurrentlocation:home>>technologycenter>>>touseandrepair>135MWturbineDEHservovalvefailureanalysis135MWturbineDEHservovalvefailureanalysisAuthor

6、:releasetime:2011-5-1122:37:55reading:575NanjingSuYuanthermoelectricco.,LTD・,aperiodof2unitsof135mwelectrichydraulic(EH)systemusinghigh-pressurefuelsystem,oilmotivationisusedtocontrolthesteamturbineinletsteamvalveopening.Oilmotiveservovalveonsteamturbinecontrolsystem(DEH)electricalsi

7、gnalistransformedintocontrolthedisplacementoftheservovalvevalve,bychangingtheoilmotivecylinderofhighpressureresistantfuelfeedanddrainagecapacity,controloilmotivestrokeposition.DEHcontrolsystemUSESisI/AseriesofShanghaiFOXBOROcompanysystem,servocardforShanghaisteamturbinefactorycontrol

8、centerofSVP-

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