【正文】 ................. 5 冷凝器 ..................................................................................................................... 5 .................................................................................................... 6 .................................................................................................................... 6 原料及塔頂塔底產(chǎn)品的摩爾分率 ......................................................................... 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 ................................................................................................................. 7 .................................................................................................................... 7 理論塔板數(shù) TN ......................................................................................................... 7 最小回流比及操作回流比 ..................................................................................... 8 精餾塔的氣、液相負(fù)荷 ......................................................................................... 9 操作線方程 ............................................................................................................. 9 圖解法求理 論塔板數(shù) ............................................................................................. 9 實(shí)際板層數(shù) ............................................................................................................. 9 ................................................................................ 9 操作壓力 ................................................................................................................. 9 操作溫度 ............................................................................................................... 10 平軍摩爾質(zhì)量 ....................................................................................................... 10 平均密度 ................................................................................................................11 液體平均表面張力 ............................................................................................... 12 液體平均 黏度 ....................................................................................................... 13 .................................................................................................. 13 塔徑 ....................................................................................................................... 13 空塔氣速 ............................................................................................................... 14 實(shí)際空塔氣速 ....................................................................................................... 15 3 精餾塔有效高度 ................................................................................................... 15 .............................................................................................. 15 塔板布置 ............................................................................................................... 17 . 塔板布置 ………………………………………………………………… ……….18 ...................................................................................................... 19 塔板壓降 ............................................................................................................... 19 液面落差 ............................................................................................................... 20 液沫夾帶 ............................................................................................................... 20 漏液 ....................................................................................................................... 20 液泛 ....................................................................................................................... 21 .............................................................................................................. 22 漏液線 ................................................................................................................... 22 液沫夾帶線 ........................................................................................................... 22 液相負(fù)荷下限線 ................................................................................................... 23 液相負(fù)荷上限線 ................................................................................................... 24 液泛線 ................................................................................................................... 24 ............................................................................................................ 26 進(jìn)料罐線管徑 ..................................................................................................... 27 ........................................................................................................................ 30 塔頂空間 ............................................................................................................. 30 塔底空間 . ............................................................................................................ 30 人孔 ..................................................................................................................... 30 塔高 ..................................................................................................................... 30 ： .................................................................................... 30 參考文獻(xiàn) ............................................................................................................................. 32 設(shè)計(jì)心得體會 ....................................................................