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56401/1707.15mm2/s8.9m3/h76m0.091MPa/0.785MPa15kW2950r/min(:E-GA103),(:E-DA102),,,,12,1,18B1-P,,,,118B1-P,:(1);(2);(3);(4),,2,,(0.40.7MPa),,22(,300271),©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.5720043Fb()=Ft()+Fp()-Fm():Pb=Pt+Pp-PmPb=Pt+(K-)P:d2=72mm;d1=37mm;d2=34mm:Pt=Ft()/[/4(d22-d02)]=0.45MPa():K=(d22-d02)/(d22-d12)=1.056:=0.742:P=(+)/2=0.438MPa8B1-PPb0.586MPa,,,,?,,E-GA103,E-GA103,,,,,,,,,,,,,,0.586MPa,,,,,,,,3,3.1,318,:(1);(2),;(3),,;(4),,Z,,31,3,9O245678101112131415161733183.2,,,E-DA103,,,:(1),;(2)300,170,,©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-gascompressorshouldbequotedbythetwomanu2facturersratherthanonlybytheoriginalmanufacturertoavoidhighpricefromasingleoffer.Theexistingsteamturbinesforthesyntheticgascompressorunitdonotneedtorevampastheirpowerisenoughtodriveafterhavingincreasedtheefficiencyofthecom2pressorandmodifiedthesyntheticprocess.Keywords:syntheticammonia,c