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1、彳由乞錨連2013年2月第32卷第2期輸送工藝文章編號(hào):1000.8241(2013)02.0143.09原油管道差溫順序輸送水力一熱力耦合計(jì)算模型王凱張勁軍’宇波’1.中國(guó)石油大學(xué)(北京)城市油氣輸配技術(shù)北京市重點(diǎn)實(shí)驗(yàn)室,北京1022492.中海油研究總院深水工程重點(diǎn)實(shí)驗(yàn)室,北京100027摘要:原油差溫順序輸送是指順序輸送具有不同流動(dòng)特性的原油時(shí),根據(jù)安全與節(jié)能的需要,調(diào)整油品加熱溫度以節(jié)約能耗的一種管輸技術(shù)。建立了埋地原油管道差溫順序輸送的數(shù)學(xué)模型,提出了移位網(wǎng)格下的虛擬邊界條件法。編制了較為嚴(yán)格的非穩(wěn)態(tài)水力一熱力耦合計(jì)算程序,可用于管道設(shè)計(jì)與運(yùn)行階段出站溫度、流量和
2、壓力隨時(shí)調(diào)整,以及地溫、原油物性和土壤物性發(fā)生變化的條件下,任意油品種類(lèi)數(shù)與油品排列次序,任意批次數(shù)與批次量的工藝計(jì)算。利用新大管道原油差溫順序輸送現(xiàn)場(chǎng)測(cè)試數(shù)據(jù)對(duì)模型進(jìn)行了驗(yàn)證,結(jié)果表明各批次原油進(jìn)站溫度實(shí)測(cè)值與計(jì)算值的平均偏差較小,最大為1.4℃。(表5,圖19,參15)關(guān)鍵詞:原油管道;順序輸送;差溫;非穩(wěn)態(tài);水力一熱力耦合;數(shù)值模型中圖分類(lèi)號(hào):TE83文獻(xiàn)標(biāo)識(shí)碼:Adoi:10.6047~.issn.1000.8241.2013.02.007Hydraulic-thermalcoupledmodelofdifferenttemperaturebatchtranspOr
3、tatiOnofcrudeoilpipelineWangKai一,ZhangJinjun,YuBo1.BeijingKeyLaboratoryofUrbanOilandGasDistributionTechnology,ChinaUniversityofPetroleum(Beijing),Beijing,102249;2.DeepwaterEngineeringKeyLaboratory,CNOOCResearchInstitute,Beijing,100027Abstract:Pipeliningofcrudeoilsinbatcheswithdiferentout—s
4、tationtemperaturesisanewtechnologythattheheating/out-stationtemperatureisadjustedinaccordancetosafetyandenergy--savingrequirementsbasedontheflowpropertiesofpumpedcrudes.Amathematicalmodel,whichissolvedbythevirtualboundaryconditionontheshiftgridsforthefirsttime.isdevelopedtodescribetheunste
5、adyflowandheattransferofdifferenttemperaturebatchtransportationofcrudeoilburiedpipeline.Duetothecompacthydraulic—thermalcoupling,thenumericalcodecancompetentlybeusedtosimulatetheoperatingparametersundercomplexconditionsduringdesignoroperationstages,includingtheadjustmentoftemperature,flowr
6、ateandpressurewheneverattheout—stationposition,thechangeofgroundtemperatureandphysicalpropertiesofcrude/soilalongthepipeline,andtheunlimitednumberofcrudeoiltypesandbatcheswithorderingfreelyandvolumeoptionally.ThemodelisverifiedbythefielddataofXingang-Dalianpipelinetransportingcrudeoilsinba
7、tcheswithdiferentout-stationtemperatures,andtheresultsshowthatthemeanofthedeviationineachbatchbetweenthemeasuredandthecomputedin·stationtemperaturesiswithin1.4。C.(5Tables,19Figures,15References)Keywords:crudeo訂pipeline,batchtransportation,differenttemperatures