資源描述：
《畢業(yè)設(shè)計-正文-參考樣本》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在工程資料-天天文庫。
1、遼寧石油化工大學(xué)繼續(xù)教育學(xué)院論文350萬噸/年大慶原油常壓塔工藝計算摘要本次設(shè)計主要完成了處理能力為350萬噸/年的大慶原油常壓塔的設(shè)計和計算，其次為塔板的工藝設(shè)計和計算。在確定了主要和次要任務(wù)后，分別對常壓塔和塔板進行設(shè)計和計算。常壓塔的設(shè)計主要依據(jù)所給的原油實沸點蒸餾數(shù)據(jù)及產(chǎn)品的恩氏蒸餾數(shù)據(jù)，計算產(chǎn)品的各物性數(shù)據(jù)，找出切割點溫度，確定原油的切割方案，計算產(chǎn)品收率。參考同類裝置確定塔板數(shù)為40層，進料在第36層板，側(cè)線抽出位置分別為塔頂，假設(shè)各主要部分的操作溫度及操作壓力，對全塔進行熱平衡計算
2、，確定全塔回流熱為106kJ/h。本次設(shè)計塔頂采用二級冷凝冷卻回流，塔中采用兩個中段循環(huán)回流，塔頂取熱：第一中段回流取熱：第二中段回流取熱為5：2：3，最后校核各主要部位操作溫度都在允許的誤差范圍內(nèi)。本次設(shè)計主要采用經(jīng)驗圖表和經(jīng)驗公式進行計算，計算結(jié)果表明:參數(shù)的核算結(jié)果均在誤差允許范圍內(nèi)和經(jīng)驗值范圍內(nèi)。關(guān)鍵詞：大慶原油；常壓塔；塔板；設(shè)計；溫度遼寧石油化工大學(xué)繼續(xù)教育學(xué)院論文AbstractAatmosphericdistillationcolumn,whichisabletotreatcru
3、doil2MTayear,isdesignedmainly,andatypeoftrayandaatmosphericheateraresecondary.ThedesignoftheatmosphericdistillationcolumnisbasedonthedatumoftruepointdistillationofthecrudeoilandofEnglerdistillationoftheproducts.Thecalculationofproducts′phsicalpropert
4、yparametersandthecutcomceptualandproducts′yieldsarealsobasedonthedatum.Thetraynumberis40,thefeedtrayis36,andthesidestreamwithdrawaltrayarethe1th,10th,20th,30th.Andtheyaredeterminedbyreferringtothesamekindunit.Thefollowingworkistoassumetheoperatingtem
5、peratureandpressureofalltheimportantpointsofthecolumnandtomaketheenergybalancecalculationforthewholecolumn,andmakesureheatofreflueis94.74×106kJ/h.Atwo-gradecondenserisusedontheoverheadofthecolumn,andtwomid-pumparoundonthebody.Theratiooftheenergytaken
6、bythecondensersfromtoptobottomis5:2:3.Finally,thetemperatureassumedshouldbecheckedup.Itisveryimportant.AtypeofF1valvetray,whichweighs33gavalve,isbechosen.It′smaximumvaporloadofthecolumnis2016.07Kmol/h,andoutsidediameteis4.8m.Thetrayspacing0.6m.Sotheh
7、eightofthecolumnbodyis24m.Inthissection,themostimportantworkistocalculatethehydromechanicsperformanceandtheoperatingflexibilityofthetrayis3.33.Thetrayshouldbeoperatedinaproperarea.Ahollowcylindricalpipefurnaceischosen.Inthissection,theparametersofthe
8、radiantsectionandconvectionsectioniscalculatedwiththeempiricalformulas.Thedesignismainlyadoptedempiricalfiguresandempiricalequations.Theresultsshowthattheresultsareintherangepermittedandintherangeofempiricalvalues.Keywords:Daqingcrudeoil;atmosphericd
