【正文】 trol itself according to the size of the air. The calculations of the distillation designing include the calculation of the tower height, the tower diameter, the size of various parts of the tray and the arrangement of the tray, and the check of the hydrodynamics performance of the tray. And then draw the dray load map. Key words：gasliquid mass transfer rectification valve tower目錄第一章 前言………………………………………………………………………………....3 精餾及精餾流程 3 精餾的分類 3 精餾操作的特點(diǎn) 4 塔板的類型與選擇 4 相關(guān)符號說明 5 相關(guān)物性參數(shù) 6第二章 設(shè)計任務(wù)書 7第三章 設(shè)計內(nèi)容 ..8 設(shè)計方案的確定及工藝流程的說明 8 全塔的物料衡算 8 料液及塔頂?shù)桩a(chǎn)品含苯的摩爾分率 8 平均摩爾質(zhì)量 8 料液及塔頂?shù)桩a(chǎn)品的摩爾流率 .9 塔板數(shù)的確定 9 平衡曲線的繪制....................... ..........................................................9 操作回流比的確.................................................................................10 理論塔板數(shù)的確定.............................................................................11 塔的精餾段操作工藝條件及計算...............................................................13 平均壓強(qiáng)Pm.........................................................................................13 平均溫度Pm.........................................................................................13 平均分子量Mm.....................................................................................13 液體的平均粘度μL,m..........................................................................14 液體的平均密度ρ.............................................................................15 精餾塔的塔體工藝尺寸計算.......................................................................16 塔徑的計算.........................................................................................16 ......................................................................17 塔板工藝結(jié)構(gòu)尺寸的設(shè)計與計算...............................................................17 ......................................................................................17 ..............................................................................................18 浮閥的布置...................................................................................................19 閥孔速度............................................................................................19 開孔率.................................................................................................19 閥孔總面積........................................................................................20 浮閥總數(shù)............................................................................................20 塔板上布置浮閥的有效操作面積....................................................20 浮閥的排列........................................................................................20 篩板的流體力學(xué)驗(yàn)算...................................................................................21 ..............................................................................................21 液面落差和液沫夾帶..........................................................................22 漏液......................................................................................................22 液泛......................................................................................................22 塔板負(fù)荷性能圖............................................................................................23 ...................................................................................................23 液沫夾帶線..........................................................................................23 液相負(fù)荷下限線..................................................................................24 液相負(fù)荷上限線..................................................................................24 ...................................................................................................24 第四章 附屬設(shè)備的選型及計算...........................................................................27 塔體總高度....................................................................................................27 塔頂空間HD....................................................................................................27 人孔數(shù)目........................................................................................................27 塔底空間HB....................................................................................................27 裙座的選型....................................................................................................29第五章 相關(guān)機(jī)械設(shè)備的強(qiáng)度校核.....