【正文】 課程設(shè)計 第 1 頁 共 23 頁 目錄 一．設(shè)計任務(wù)及要求 ................................................................................................... 3 二．概述 ........................................................................................................................ 3 三．設(shè)計依據(jù) ................................................................................................................ 4 五．操作條件的計算 ................................................................................................... 4 ..............................................................................................................................................4 操作壓力 ........................................................................................................................................5 進料狀 態(tài) ........................................................................................................................................5 加熱方式 ........................................................................................................................................5 熱能利用 ........................................................................................................................................5 ...................................................................................................6 逐板計算： .....................................................................................................................................6 全塔效率的估算 .............................................................................................................................7 實際塔板數(shù) PN ..............................................................................................................................8 ...............................................................................................................8 .............................................................................................................................................8 六 .精餾塔主體尺寸的計算 ......................................................................................... 9 ...........................................................................................................9 ........................................................................................................................................9 ..................................................................................................................................... 12 選擇 ............................................................................................................................. 12 （出口堰）的設(shè)計 ............................................................................................................ 13 (1).堰長 Wl : ............................................................................................................. 13 lW =(～ )D=1600=1120mm ..................................................................... 13 (2).堰上液層高度 hOW ： ....................................................................................... 13 .......................................................................................................................................... 14 塔板尺寸 ...................................................................................................................................... 15 降液管底隙高度 h0..................................................................................................................... 15 板結(jié)構(gòu)的選擇 .............................................................................................................................. 16 板材料的選擇 ...