【正文】 ......................................8 求實(shí)際塔板數(shù) ..................................................................................................................8 有關(guān)物性數(shù)據(jù)的計(jì)算 (以精餾段 R1 為例 )..........................................................................9 平均壓力計(jì)算 ...................................................................................................................9 平均摩爾質(zhì)量計(jì)算 ...........................................................................................................9 平均密度計(jì)算 ...................................................................................................................9 液體平均表面張力計(jì)算 ...................................................................................................9 液體的平均粘度 ..........................................................................................................10 精餾塔的塔體工藝尺寸計(jì)算 ................................................................................................10 負(fù)荷計(jì)算 .........................................................................................................................10 摩爾計(jì)算： ..............................................................................................................10 同理得質(zhì)量計(jì)算： ..................................................................................................10 不同回流比的負(fù)荷結(jié)果 .........................................................................................10 Vs和 Ls 計(jì)算 .........................................................................................................10 塔徑的計(jì)算 .....................................................................................................................10 精餾塔有效高度的計(jì)算 .................................................................................................11 塔頂、塔底空間 .............................................................................................................11 塔頂空間 HD ...........................................................................................................11 塔底空間 HB ............................................................................................................11 塔壁厚計(jì)算 .....................................................................................................................12 .............................................................................................................12 溢流裝置 .........................................................................................................................12 lw.....................................................................................................................12 hw.............................................................................................................12 Wd 和面積 Af： ..........................................................................12 ho..................................................................................................12 塔板布置及浮閥數(shù)目與排列 .........................................................................................12 塔板流體力學(xué)驗(yàn)算 .........................................................................................................13 氣相通過(guò)浮閥塔板的壓強(qiáng)降 ..................................................................................13 淹塔 ..........................................................................................................................14 霧沫夾帶 ..................................................................................................................14 塔板的負(fù)荷性能 .............................................................................................................14 霧沫夾帶線 ..............................................................................................................15 液泛線 ....................................................................................................................15 4 液體負(fù)荷上限線 ....................................................................................................15 漏夜線 ....................................................................................................................16 液相負(fù)荷下限線 ...................................................................................................16 ....................................................................................................................16 四 .熱平衡確定熱換器 ...................................................................................................................16 ..........................................................................................................................16 熱負(fù)荷 Qc ..................................................................................................................16 傳熱面積 A....................................................................................................................17 求平均溫度 .............................................................................................................17 K 值選定 .................................................................................................................17 傳熱面積 A.............................................................................................................17 循環(huán)水的用量計(jì)算 .......................................................................................................17 熱換器選用 ....................................................................................................................17 ...........................................................................................