油管道泄漏检测定位技术

4640,,,2000,20000km,,,,,,,,,1,,,,1.1,,,,,,,,,1.2,,,,,L,x,t1t21:XL=L+at2(1)XL,m;L,m;(,710000),,,,©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.4720043a,m/s;tt=t1-t2,s,(,),[1],,,,,,[3],-,,,,,,a[4]:a(t)=K(t)/(t)1+K(t)EDeC1(2):t,;K,Pa;,kg/m3;E,Pa;D,m;e,m;C1,,,,,,,1.3(1),,,,,,[2]:XL=PŠi-PŠo-KLM”o2K(M”i2-M”o2)(2):XL;PŠiPŠoM”iM”o;L;K,,,,,,pc(2),,,,,,,,1P1P2,,P3P4,©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.4840(58)2[5]:XL=(Pi-P0)+g…(hi-h0)-(C2f2LQ02/D5)C(1f1Qi2-2f2Q02)/D5(3):XL;Pi(Po)()();…;hih0;C;12;f1f2;L;QiQ0;D,,,,,,,,,,,,,,,,,[6]T0,dlT,G(),idldT,dl:KDout(T-T0)dl=-GcdT+gGidl(4),Dout;K;ca=KDoutGc,b=gica,,lnTout-T0-bTin-T0-b=aL(5)i=Q2-mvmD5-m,(3)dt=Q3-m(t)v(t)mg-k(t)D6-m(t-t0)dlD5-mQ(t)c(t)dt=Q3-mv(t)m(t)c(t)Q3-mv(t)m(t)g-k(t)D6-m(t-t0)dldt=idl(6)(6),(6),,,,1.4,,,,©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.5840E-DA103E-GA1050.54MPa,80E-GA103:P=(+)/2=0.438MPa0.1MPa,,E-GA105;(3),,E-GA10320011,,,28B1-P960,2500,1,,,1,,,1996/32,,,1990/13,,,2000/64,,,1994/33(48),,,GPS(GlobalPositioningSystem)GPS,,GPS[7]2,,,SCADA(SupervisoryControlandDataAcquisition),,1.[J].,1998,12(1):59-642Zhang,X.J.Statisticalleakdetectioningasandliquidpipelines[J].Pipes&PipelinesInternational,1993,38(4):26-293.[J]..2001,20(2):253-2564.[M].:,19945VanelliJC,LindseyTP.Real-timeModelingandApplicationinPipeline.M&C,IEEEPetroleumandChemicalIndustryConference,Chicago:Illinois,19816.[J]..1997,33(5):574-5807,,.GPS[J]..2003,11(3):161-162©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.4PROCESSEQUPMENT&PIPINGVo1.41No.3JUNE2004(TotalNo.222)ShanghaiChemicalEngineeringDesignInstituteShanghai200233Abstract:Inthispaper,thetypesofsteeloilstoragetanksinpetrochemicalindustryandthetypesofthefoundationsforthetanksaswellasthedesignandstructureofthefoundationswereintroducedtothedesignandconstructionpersonnelforreference.Keywords:steeloilstoragetank,domerooftank,floatingrooftank,coveredfloatingrooftank,foundation,designInstallationofSafetyAccessoriesforOrganicHeatCarrierHeatersTianXiujuanNingxiaWuzhongInstituteofBoilerandPressureVesselInspectionWuzhong751100Abstract:Theeffectandinstallationrequirementsofthesafetyaccessoriesfororganicheatcarrierheaterswereintroducedandpotentiallyhiddentroublesthatareinconsistentwiththesafetyre2quirementswerepointedoutinthispaper.Keywords:organicheatcarrierheater,safetyaccessories,installationrequirementAnUnderstandingofFlexibilityAnalysisinASMEB31.3ProcessPipingDingBominEastChinaUniversityofScienceandTechnologyShanghai200237YingDao-yanNationalTechnologyCenterofProcessEquipmentShanghai200040Abstract:BasedontheprovisionsspecifiedinASMEB31.3ProcessPiping,someviewsonthequestionsabouttheflexibilityanalysisoftheprocesspipingincludingtherelationshipbetweenflexibilityanalysisandfatigueevaluation,andwhethertheeffectofpressurewasincludedintheflexibilityanalysisornotetc.wereputforwardfordiscussion.Keywords:processpiping,flexibilityanalysis,fatigueevalu2ation,displacementstress,pressurestress,severecycliccondition,ASMEB31.3,ASMEVIII-2TechnologyofLeakLocationforOilPipelinesWangLan,WangYiEnvironmentalandChemicalEngineeringCollege,Xi’anJiaotongUniversityXi’an710000Abstract:Thetechnologyofleaklocationforthepipelinesispaidagreatdealofattentionbythepersonnelengagedinthepipelinemanagement.Thesystemofpipelineleaklocationisanimportantcomponentpartofthepipelineleakdetectionsystem.Inthispaper,somemethodsusedworldwideandsomeotherrisingtechnologyofleaklocationforoilpipelineswereintroduced.Theadvantagesanddisadvantagesofthosemethodswerealsoanalyzed.Itwasfiguredoutthatthelosscanbeminimizedonlywhentheleakagepointislocatedquicklyandaccuratelyandthusthemea2suresaretakenassoonaspossible.Keywords:pipeline,leakdetection;leaklocationApplicationofPressureReliefValvesagainst’WaterHammer’inLongOilPipelineLiYongPipelineStorageandTransportSubcompanyXuzhou221008Abstract:ThestructureandoperatingprincipleoftheDAN2FLOtypepressurereliefvalvesagainst’waterhammer’werein2troducedindetail.Thecausesof’waterhammer’occurredinlongoilpipelinewasalsoexplainedinthispaper.Basedontheserviceconditionsofthepressurereliefvalvesinthelongoilpipeline,somerecommendationsonoperationandmainte2nanceoftheminservicewereputforward.Keywords:pressurereliefvalve,structure,operatingprinci2ple,running-analysisExperienceinRevampingCentrifugalCompressorsinSyntheticAmmoniaPlantWeiZongshengChengdaEngineeringCorporationofChinaChengdu610041Abstract:Inthispaper,theexperienceinrevampingthepro2cessaircompressorandthesyntheticgascompressorinthe1000t/dammoniaplantforitstechnicalmodificationprojectwithaca2pacityincreaseof50%wasintroduced.Forthemodificationofprocessaircompression,itisamethodwithlessrevampingworkamount,lessriskandlessinvestmenttoaddaparallelcompressorthatisamulti-shaftmotor-drivencentrifugalcompressorthantomodifytheexistingprocessaircompressorunit,whichcansavemillionsofRMB.Forthemodificationofsyntheticgascompres2sion,changingtheinternalpartsorrenewingtheHP/LPcasingsofthesynthetic-gascompressorshouldbequotedbythetwomanu2facturersratherthanonly