【正文】 錄 第一章 前言 精餾原理及其在化工生產(chǎn)上的應(yīng)用 ........................................ 4 精餾塔對(duì)塔設(shè)備的要求 ..................................................................................................... 4 常用板式塔類型及本設(shè)計(jì)的選型 .......................................... 4 本設(shè)計(jì)所選塔的特性 .................................................... 5 化工原理課程設(shè)計(jì)任務(wù)書(shū) ................................................ 5 第 二 章 精餾塔的工藝計(jì)算 物料衡算 ............................................................. 6 原料液及塔頂，塔底產(chǎn)品的摩爾分率 ...................................... 6 物料衡算 ............................................................................................................................. 6 回流比的確定 ..................................................................................................................... 7 平均相對(duì)揮發(fā)度的計(jì)算 ..................................................................................................... 7 板數(shù)的確定 ......................................................................................................................... 8 精餾塔的氣液相負(fù)荷 ......................................................................................................... 8 精餾段與提餾段操作線方程 ............................................................................................. 9 全塔效率 ............................................................................................................................. 9 精餾塔的工藝條件及有關(guān)物性數(shù)據(jù)的計(jì)算 ................................................................... 10 操作溫度的計(jì)算 ............................................................................................................... 10 操作壓強(qiáng) ........................................................................................................................... 11 塔內(nèi)各段氣液兩相的平均分子量 ................................................................................... 12 精餾塔各組分的密度 ....................................................................................................... 13 液體表面張力的計(jì)算 ....................................................................................................... 14 液體平均粘度的計(jì)算 ....................................................................................................... 15 氣液負(fù)荷計(jì)算 ................................................................................................................... 15 精餾塔的塔體工藝尺寸計(jì)算 ........................................................................................... 16 塔徑的計(jì)算 ....................................................................................................................... 16 精餾塔有效高度的計(jì)算 ................................................................................................... 17 溢流裝置計(jì)算 ................................................................................................................... 17 塔板布置 ........................................................................................................................... 17 浮閥板的流體力學(xué)驗(yàn)算 ................................................................................................... 18 塔板壓降 ........................................................................................................................... 18 液沫夾帶 ........................................................................................................................... 18 塔板負(fù)荷性能圖 ............................................................................................................... 19 過(guò)量液沫夾帶線關(guān)系式 ................................................................................................... 20 液相下限線關(guān)系式 ........................................................................................................... 20 嚴(yán)重漏夜線關(guān)系式 ........................................................................................................... 21 液相上限線關(guān)系式 ........................................................................................................... 21 甲苯乙苯的精餾 (浮閥塔 ) 3 降液管液 泛線關(guān)系式 ....................................................................................................... 22 浮閥塔計(jì)算結(jié)果匯總 ....................................................................................................... 22 第三章 塔結(jié)構(gòu) 塔的設(shè)備結(jié)構(gòu)圖 ........................................