油田中轉(zhuǎn)站雙速輪值外輸工藝的研究.pdf

1、圖書分類號：TH]37332UDC：62180322工程碩士學(xué)位論文礤7i8917油田中轉(zhuǎn)站雙速輪值外輸工藝的研究碩士研究生：導(dǎo)師：副導(dǎo)師：申請學(xué)位級別：學(xué)科、專業(yè)：所在單位：答辯日期：授予學(xué)位單位：周文王洪杰副教授邊文錄高級工程師工程碩士動力工程大慶油田工程有限公司2005年9月哈爾濱工業(yè)大學(xué)哈爾濱工業(yè)大學(xué)1程碩士學(xué)位論文AbstractThebalancedtwo—speedshiftoutwardtransmissiontechn

2、icsisamethodthatistouseacushiontanktoprovidealoadingplacefortransmissionIiquidinordertoalternatelystarttwofixedrotatespeedmodeofacentrifugalpumpwhatiscalledtwo—speedshiftmode，totransferthecontinuousliquidtotheCUShiontank

3、andkeeptheequationoftheinletaverageflowandtheoutletaverageflowundertheallowedlevelfluctuateAlthoughthetwo—speedshiftrunmodeofacentrifugalpumpisnotathrottleadjustingmetlloditsworkpointdoesn’tchangewiththelevelchangewhatyo

4、ushoulddoistoadjusttheexecutivetimeofthetwofixedworkpointsThisthesisconfirmstheenergy—savingeffect，thedesignmethodandtheapplicationvalveofthebalancedtwo—speedshiftoutwardtransmissiontechnicsthoughthecarefuldiscussionofth

5、etheoryandtheexperimentIntheorybytheanalyzeofthedischarging—timecurveofthecentrifugalpumpwhichusetwodifierentrunmodetotransferthesamequantityliquid，wecaniudgetheenergy—savingeffectofthetwo—speedshiftoutward打ansmissiontec

6、hnicsthroughthecomparisonbetweenthepowerconsumptionofthetwodj凰rentrunmodeAccordingtocalculationjftheJimitedshiftratiojsnotgreaterthan15andifthepumpe艏ciencydoesn’tchangeduringtheshifttheoutputworkratioofthetwo—speedshiflr

7、unmodeandthefrequencyconversionrunmodeisbetween1and113thatmeansthepowerconsumptionofthetworunmodesarealmostsametotransferthesamequantityliquidIntheexperimenttovalidatetheabove—mentionedconclusionchoosethe4／6stagetwo—spee

8、dmotortodrivespecialdesignedcentrifugalpumpwhichiscalledtwospeedpumpitsemciencyisalmostsameamong15timesshiflThematerialexperimentisasfollowing：Keepthetankinletflowfixedness，firstlyexecutethetwo—speedshiftoutwardtransmiss

9、ionthoughchangingthestagequantitythenstartthemotorfourstagescoilfrequencyconversionFromthemeasurementthereisnoessentialdifierenceonpowerconsumptionbetweenthetwomethodsunderoneaveragetransferflOWitisidentical謝mthetheoryan

10、alysisInordertopromotethetwospeedshiftoutwardtransmissiontechnicsinmiddletransferstationsthisthesisstudyandprovideadesignmethodforthetwo—speedshiftoutwardtransmissiontechnicsTheconditionforselectingtwo—speedpumpis血eworkp

11、ointofnowadaystransmissionandarrangedtransmissionmustbeinthehJ【ghefficiencyworkscopeoftheselectedpumpIntheexistingcourseofthevariationaltransmissionofoilfield，themajortechnicsistousethethrottleadjustingmethod，thenistouse

12、frequencyconversiontransmissionmethodA肺OHghtheformercostlessatthebeginninganditiseasiertomaintain，itbririgsveryhighenergyloss，andthelatercaneliminatetheenergylossbut血epumpefficiencyislowanditcostmoreatthebeginningNotonly