油田中轉(zhuǎn)站雙速輪值外輸工藝的研究.pdf

1、圖書(shū)分類(lèi)號(hào)：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(qǐng)學(xué)位級(jí)別：學(xué)科、專(zhuān)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(jí)工程師工程碩士動(dòng)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