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时间:2020-04-20
《冷热原油顺序输送温度场波动规律.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第33卷第l期辽宁油化工大学学报VoI.33No.12Ol3年3川J()URNAI()FIIA()NINGSHIHUAUNIVERSITYMar.2013文章编号:1672—6952(2013)01—0053—04冷热原油顺序输送温度场波动规律杨云鹏,刘宝玉,张玉廷,张宁,郝晶(1.辽宁石油化工大学石油天然气工程学院,辽宁抚顺113001;2.广西石化分公司,广西钦州535000)摘要:为了更加准确地确定冷热原油顺序输送温度场波动规律,对管道周围土壤温度场绝热面漂移进行了研究。针对冷热原油顺序输送过程中埋地管道周围土壤温度场变化特征,建立了土壤温度场非稳态传热模型
2、,利用CFD软件,对冷热原油顺序输送过程中不同循环周期不同时刻的土壤温度场进行了数值模拟及分析。结果表明,土壤温度场绝热面的漂移具有一定的规律,绝热面随冷热原油顺序输送时间呈周期性漂移,漂移周期与冷热油顺序输送的循环周期相同;土壤温度场绝热面的漂移周期及距离与冷热油顺序输送的循环周期有关。关键词:顺序输送;土壤温度场;数值模拟;绝热面漂移中图分类号:TE832.2文献标志码:Adoi:10.3696/j.issn.1672-6952.2O13.01.014FluctuationoftheSoilTemperatureFieldofBatchingTransD0rt
3、ationofColdandHOtCrudeOilsYANGYunpeng,LIUBaoyu,ZHANGYuting。ZHANGNing,HAOJing(1.CollegeofPetroleumEngineering,LiaoningShihuaUniversity,FushunLiaoning113001,China;2.GuangxiPetrochemicalCompany,QinzhouGuangxi535000,China)Received7August2012;revised21September2012;accepted29November2012Ab
4、stract:InordertOmoreaccuratelydeterminethecrudeoilbatchingtransportationtemperaturefluctuation,thesoiltemperaturefieldaroundpipelineinsulationsurfacedriftwasstudied.Forvariationcharacteristicsofsoiltemperaturefieldaroundundergroundpipelineintheprocessofbatchingtransportationofcoldandh
5、otcrudeoil,thenonsteadyheattransfermodelwasestablished,andsoiltemperaturefieldindifferentperiodofbatchingcyclesandmomentswasnumericallysimulatedandanalyzedbyusingCFDsoftwareintheprocessofcrudeoilbatchingtransportation.Theresultsshowthatthedriftonthethermalinsulationsurfaceofsoiltemper
6、aturefieldhascertainregularity,andadiabaticsurfacewithcrudeoilbatchingtransportationtimeshowsperiodicdrift,driftperiodandperiodofbatchingcyclesofcoldandhotoiltransportationwerethesame;driftcycleofthermalinsulationsurfaceofsoiltemperaturefieldandthescopearerelatedtOcoldandhotcycleonthe
7、batchtransp0rtationofoiLKeywords:Batchingtransportation;Soiltemperaturefield;Numericalsimulation;Adiabaticsurfacedrift*C0rrespondingauthor.Te1.:+86—24—56861820;e—mail:dong781—1@163.corn随着我国石油工业的发展和对国外进口原油需序输送过程中,管道周围土壤温度场受管内油品的求量的增加,对冷热原油顺序输送的工艺研究也日温度、压力、流量及冷热油输送循环周期等因素的影益深入,而对冷热原油顺序输
8、送过程中管
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