【正文】 遼寧工業(yè)大學(xué)化工原理課程設(shè)計(jì) 化工原理課程設(shè)計(jì) 第 1 頁(yè) 共 30 頁(yè) 目錄 第 1 章 前言 ........................................................................................... 3 設(shè)計(jì)題目 .................................................................................... 3 精餾及精餾流程 ......................................................................... 3 精餾的分類(lèi) ................................................................................. 4 精餾操作的特點(diǎn) ......................................................................... 4 塔板的類(lèi)型與選擇 ..................................................................... 5 相關(guān) 符號(hào)說(shuō)明 ............................................................................. 5 第 2 章 精餾塔的精餾段的設(shè)計(jì)計(jì)算 .................................................... 7 設(shè)計(jì)方案的確定 ......................................................................... 7 精餾塔的物料衡算 ..................................................................... 7 原料液及塔頂、塔底產(chǎn)品的摩爾分?jǐn)?shù) ............................................................................7 原料液及塔頂、塔底產(chǎn)品的平均摩爾質(zhì)量 ....................................................................7 物料衡算 ..............................................................................................................................8 塔板數(shù)的確定 ............................................................................. 8 的確定 .............................................................................................................8 實(shí)際板層數(shù)求取 .............................................................................................................. 10 精餾塔的精餾段工藝條件及有關(guān)物性數(shù)據(jù)的計(jì)算 ................. 11 精餾段的操作壓力 ...........................................................................................................11 精餾段的操作溫度 ...........................................................................................................11 精餾段氣、液混合物的平均摩爾質(zhì)量 ..........................................................................11 精餾段氣、液相的平均密度 .......................................................................................... 12 精餾段液相平均表面張力 .............................................................................................. 12 精餾段的塔體工藝尺寸計(jì)算 .................................................... 13 精餾段塔徑和實(shí)際空塔氣速的確定 ............................................................................. 13 精餾段精餾塔有效高度的求取 ..................................................................................... 15 精餾段塔板主要工藝尺寸的計(jì)算 ............................................ 15 遼寧工業(yè)大學(xué)化工原理課程設(shè)計(jì) 化工原理課程設(shè)計(jì) 第 2 頁(yè) 共 30 頁(yè) 精餾段溢流裝置性能參數(shù)的確定 ................................................................................. 15 精餾段塔板布置及浮閥的數(shù)目與排列 ......................................................................... 16 精餾段塔板流體力學(xué)驗(yàn)算 ........................................................ 18 精餾段氣相通過(guò)浮閥塔板的壓降 ................................................................................. 18 精餾段降液管中清夜層高度的確定 ............................................................................. 19 精餾段塔板負(fù)荷性能圖 ............................................................ 20 精餾段霧沫夾帶線(xiàn) .......................................................................................................... 20 精餾段液泛線(xiàn) ................................................................................................................... 21 精餾段液相負(fù)荷上限線(xiàn) .................................................................................................. 22 精餾段漏液線(xiàn) ................................................................................................................... 22 精餾段液相負(fù)荷下限線(xiàn) .................................................................................................. 22 第 3 章浮閥塔板工藝設(shè)計(jì)結(jié)果一覽表 ................................................ 24 第 4 章 設(shè)計(jì)過(guò)程的評(píng)述和討論 .......................................................... 25 回流比的選擇 ........................................................................... 25 塔高和塔徑 ............................................................................... 25 精餾塔的操作和調(diào)節(jié) ................................................................ 25 第 5 章塔附件設(shè)計(jì) ............................................................................... 26 附件的計(jì)算 .............................................................................. 26 ................................................................................................................................. 26 ..................................................................................................................... 27 參考文獻(xiàn) ............................................................................................... 29 課程設(shè)計(jì)心得 .................