甲醇水分离塔设计说明书.doc

I甲醇水分离塔设计摘要筛板塔是传质过程常用的塔设备,它的主要优点有:⑴结构比浮阀塔更简单,易于加工,造价约为泡罩塔的60%,为浮阀塔的80%左右。⑵处理能力大,比同塔径的泡罩塔可增加10~15%。⑶塔板效率高,比泡罩塔高15%左右。⑷压降较低,每板压力比泡罩塔约低30%左右。虽然筛板塔有:⑴塔板安装的水平度要求较高,否则气液接触不匀。⑵操作弹性较小(约2~3)。⑶小孔筛板容易堵塞等缺点。但它由于具有前述的一些优点,因而在化工,石油,能源等行业的应用中仍处于板式塔应用的主导地位。本次论文以介质的性质、温度和压强,以及公称直径和当地自然环境为设计条件,综合考虑各方面的因素选定板式筛板塔,具体步骤主要包括壳体、封头壁厚的设计与较核,基础环板,裙座等零部件的设计,同时结合所选定的材料和工作环境制定相应的焊接工艺和制作、组装和加工工艺。关键词筛板塔;塔盘;降液管IIAbstractThesieve-monlyusedinmasstransfertowerequipment,itsmainadvantages:⑴structuralvalvetowermorethanasimple,easyprocessing,andcostabout60%ofbubbletower,towerfloatvalveforabout80%.⑵processingcapacity,thanthediameteroftheblisterwithtower10~15%increase.⑶trayefficiencyhigherthanthatBlistertowerabout15%higher.⑷lowerpressuredropperplatebubbletowerpressurethanabout30%.Althoughthesieve-platecolumnare:⑴as-⑵small(about2~3).⑶smallplate,,whichinthechemical,petroleum,,temperatureandpressure,aswellasthenominaldiameterforthedesignofthenaturalenvironmentandlocalconditions,concretestepstoincludetheshell,headofdesignandwallthicknessmorenuclear,basedontheCentralboard,binedwithselectedmaterialsandtheworkingenvironmenttodevelopthecorrespondingweldingtechnologyandproduction,-platecolumn;tray;erIII目录甲醇水分离塔设计………………………………………………….I摘要..................................................................................................................I关键词..............................................................................................................IAbstract............................................................................................................II目录………………………………………………………………..III第一章概述……………………………………………………..……………………………………………....................................................................4第二章塔结构设计…………………………………………….