資源描述：
《30萬噸年乙烯裝置脫甲烷塔進(jìn)料冷卻器設(shè)計(jì)》由會員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、大連理工大學(xué)本科畢業(yè)設(shè)計(jì)（論文）30萬噸/年乙烯裝置脫甲烷塔進(jìn)料冷卻器設(shè)計(jì)Designofdemethanizerfeedcoolerforethyleneplantwith300thoundtons/year學(xué)院（系）：化工與環(huán)境生命學(xué)部專業(yè)：學(xué)生姓名：學(xué)號：指導(dǎo)教師：評閱教師：完成日期：大連理工大學(xué)DalianUniversityofTechnology30萬噸/年乙烯裝置脫甲烷塔進(jìn)料冷卻器設(shè)計(jì)摘要乙烯產(chǎn)品是石油化工裝置中的重要產(chǎn)品，乙烯工業(yè)的發(fā)展程度是衡量一個(gè)國家石化工業(yè)水平的重要標(biāo)志之一，揚(yáng)子乙烯裝置就是我國在20世紀(jì)60年代從國外引進(jìn)的代表性乙烯裝置之一。
2、本設(shè)計(jì)是30萬噸/年產(chǎn)乙烯裝置中脫甲烷塔進(jìn)料冷卻裝置的設(shè)計(jì)。脫甲烷塔分四段進(jìn)料，每段進(jìn)料溫度各不相同，本次設(shè)計(jì)是針對其中一股進(jìn)料的冷卻裝置設(shè)計(jì)。在進(jìn)料時(shí)增加冷卻器，可以有效減少塔底再沸器的負(fù)荷，降低成本。在設(shè)計(jì)換熱器時(shí)，除了需要考慮換熱器能否滿足工藝需求外，還需充分了解各種換熱器所適用的場合、優(yōu)缺點(diǎn)，以便綜合考慮，選擇出成本最低的方案；本次設(shè)計(jì)通過分析，最終選擇單管程、單殼程的固定管板式換熱器；根據(jù)工藝要求，進(jìn)行工藝計(jì)算，初算換熱器尺寸大??；根據(jù)國標(biāo)，對換熱器進(jìn)行機(jī)械設(shè)計(jì)和校核，同時(shí)進(jìn)行附件選擇，完成換熱器裝配圖紙。本次設(shè)計(jì)的重點(diǎn)是設(shè)備結(jié)構(gòu)設(shè)計(jì)和強(qiáng)度校核。本文設(shè)計(jì)內(nèi)
3、容包括：工藝計(jì)算、設(shè)備選型、材料選擇、設(shè)備結(jié)構(gòu)設(shè)計(jì)、強(qiáng)度校核、附件選擇以及用CAD繪制換熱器裝配圖1張，零件圖4張。關(guān)鍵詞：換熱器；固定管板；應(yīng)力分析；強(qiáng)度校核；附件選擇-I-30萬噸/年乙烯裝置脫甲烷塔進(jìn)料冷卻器設(shè)計(jì)Designofdemethanizerfeedcoolerforethyleneplantwith300thoundtons/yearAbstractEthyleneproductsareimportantproductsinpetrochemicalplants.Thedevelopmentofethyleneindustryisoneofthei
4、mportantsymbolstomeasurethelevelofpetrochemicalindustry.OneoftherepresentativeethyleneplantsimportedfromabroadinChinainthe1960s.Inthiswork,thecoolerisdesignedforthe300thoundtons/yearethyleneplantintheremovalofmethaneprocessfeedcoolerdesign.Demethylationtowerisdividedintofourfeeds,eachf
5、eedtemperatureisdifferent,thisdesignisforoneofthefeedcoolingdevicedesign.Addingthecoolertothefeedcaneffectivelyreducetheloadonthebottomreboilerandreducethecost.Inthedesignofheatexchangers,inadditiontotheneedtoconsiderwhethertheheatexchangertomeettheprocessrequirements,butalsoneedtofull
6、yunderstandthevariousheatexchangerapplications,advantagesanddisadvantages,inordertoconsider,choosethelowestcostoftheprogram;throughtheanalysisdesign,thefinalchoiceissingle-tube,single-shellfixedtubeplateheatexchanger;accordingtoprocessrequirements,makingtheprocesscalculation,gettingthe
7、sizeoftheinitialheatexchanger;accordingtothenationalstandard,doingmechanicaldesignandstrengthcheckfortheheatexchanger,aswellaschosetheannex,completeheatexchangerassemblydrawings.Thefocusofthisdesignisthedesignoftheequipmentstructureandstrengthcheck.Thedesignofthisarticleincludes:proc
