【正文】 ...................................................................................... 12 Rmin 和 R 的確定 ........................................................................ 14 確定理論塔板數(shù)和實(shí)際塔板數(shù) ........................................................... 15 精餾段操作線方程的確定 ........................................................ 15 精餾段和提餾段氣液流量的確定 ............................................ 15 提餾段操作線方程的確定 ........................................................ 15 塔板數(shù)的確定 ............................................................................. 15 實(shí)際塔板數(shù) PN ........................................................................... 16 塔的氣液負(fù)荷計(jì)算 ............................................................................... 18 操作壓力 ..................................................................................... 18 操作溫度 ..................................................................................... 18 平均摩爾質(zhì)量計(jì)算 ..................................................................... 18 平均密度計(jì)算 ............................................................................. 19 液相平均表面張力的計(jì)算 ......................................................... 20 塔的氣液負(fù)荷計(jì)算 ..................................................................... 21 第四章 精餾塔塔體工藝尺寸的計(jì)算 ................................................................ 22 塔間距的初 估 ........................................................................................ 22 ............................................................................................ 22 溢流裝置設(shè)計(jì) ....................................................................................... 24 塔板布置 ................................................................................................ 26 塔板的分塊 ................................................................................. 26 邊緣區(qū)寬度 ................................................................................. 27 開孔區(qū)面積計(jì)算 ......................................................................... 27 篩孔的尺寸及排列 ............................................................................... 27 篩孔數(shù) n 與開孔率 ? ................................................................. 27 篩孔氣速 ..................................................................................... 28 篩板的流體力學(xué)驗(yàn)算 ........................................................................... 28 氣體通過篩板壓強(qiáng)降計(jì)算： ,pmh 液柱 ...................................... 28 液面落差 ..................................................................................... 30 霧沫夾帶 ..................................................................................... 30 漏液 ............................................................................................. 32 液泛 ............................................................................................. 32 負(fù)荷性能圖 ............................................................................................ 33 霧沫夾帶線 ................................................................................. 33 液泛線 ......................................................................................... 34 液相 負(fù)荷上限線 ......................................................................... 35 漏液線 ......................................................................................... 35 液相負(fù)荷下限線 ......................................................................... 36 負(fù)荷性能圖 ................................................................................. 36 第五章 輔助設(shè)備的設(shè)計(jì) .................................................................................... 38 接管 ........................................................................................................ 38 進(jìn)料管 ......................................................................................... 38 回流管 ......................................................................................... 38 塔頂蒸汽出料管 ......................................................................... 39 塔釜出料管 ................................................................................. 39 再沸器返塔蒸汽管 ..................................................................... 39 冷凝器 ................................................................................................... 40 再沸器 ................................................................................................... 40 泵 ........................................................................................................... 41 進(jìn)料泵 ........................................................................................ 41 回流泵 ......................................................................................... 42 第六章 板式塔結(jié)構(gòu) ............................................................................................ 44 塔頂空間 ................................................................................................ 44 塔底空間 ................................................................................................ 44 人孔 ........................................................................................................ 44 進(jìn)料板間距 ............................................................................................ 45 塔頂封頭 的確定 ................................................................................. 45 裙座高度 HS的確定 ............................................................................. 45 塔高（不包括封頭和裙座 ） ............................................................. 46 精餾塔有效高度 ......................................................................... 46 實(shí)際塔高 ..................................................................................... 46 第七章 設(shè)計(jì)結(jié)果匯總 ........................................................................................ 47 .......................................................................................