【正文】 ........ 6 ........................................................................................................ 6 質(zhì)量 計算 ................................................................................................. 6 ........................................................................................................ 7 平均表面 張力 計算 .......................................................................................... 9 液體平均粘度計算 ................................................................................................ 9 .......................................................................................................10 ............................................................................................10 ..........................................................................................................10 ...................................................................................................12 ................................................................................................12 .......................................................................................................12 ..............................................................................................................15 篩板的流體力學(xué)驗(yàn)算 ......................................................................................................16 ..............................................................................................................16 .............................................................. 17 ............................................................ 18 ............................................................ 18 內(nèi)蒙古科技大學(xué)課程設(shè)計說明書 II .......................................................... 18 第三章 .塔板負(fù)荷性能圖 ..............................................................................................................20 ............................................................................................................................20 .......................................................... 20 .............................................................. 20 ...................................................... 21 .............................................................. 21 ...................................................... 22 ............................................................................................................................22 ..........................................................................................................22 .................................................................................................................23 ...................................................................................................24 .................................................................................................................24 ...................................................................................................24 第四章 .設(shè)計結(jié)果一覽表 ..............................................................................................................26 第五章 .板式塔結(jié)構(gòu) .....................................................................................................................27 ................................................................ 27 ............................................................ 27 ............................................................ 27 ................................................................ 27 ................................................................ 27 第六章 .參考文獻(xiàn) .........................................................................................................................28 第七章 .設(shè)計心得體會 ..................................................................................................................29 第八章 .致謝 ................................................................................................................................30 內(nèi)蒙古科技大學(xué)課程設(shè)計說明書 1 第二章 .設(shè) 計計算 設(shè)計方案的選定及基礎(chǔ)數(shù)據(jù)的搜集 本設(shè)計任務(wù)為分離苯一甲苯混合物。塔頂上升蒸氣采用全凝器冷凝，冷凝液在泡點(diǎn)下一部分回流至塔內(nèi)，其余部分經(jīng)產(chǎn)品冷卻器冷卻后送至儲罐。 篩板塔也是傳質(zhì)過程常用的塔設(shè)備 。 (4)壓降較低，每板壓力比泡罩塔約低 30％左右。 表 項目 分子式 分子量 M 沸點(diǎn)（℃） 臨界溫度 tC（℃） 臨界壓強(qiáng) PC（ kPa） 苯 A C6H6 甲苯 B C6H5— CH3 表 苯和甲苯的飽和蒸汽壓