【正文】 數(shù) ................................................................................ 7 最小回流比的計(jì)算 ........................................................................................................... 7 氣液相平衡數(shù)據(jù) ..................................................................................................... 7 最小回流比的計(jì)算 ................................................................................................. 8 全塔物料衡算與操作線方程 .............................................................................................. 9 實(shí)際回流比 ...................................................................................................................... 9 精餾段和提餾段理論板數(shù)的計(jì)算 .....................................................................................10 精餾塔平均溫度的計(jì)算 ....................................................................................................11 物性參數(shù)計(jì)算 ..................................................................................................................11 氣相密度 ..............................................................................................................11 液相密度 ..............................................................................................................11 表面張力 ..............................................................................................................11 粘度 .....................................................................................................................12 塔效率的計(jì)算 ..................................................................................................................13 實(shí)際塔板數(shù)的計(jì)算 ...........................................................................................................14 精餾段 ..................................................................................................................14 提餾段 ..................................................................................................................14 ....................................................................................................................15 板間距的初選 ......................................................................................................15 塔徑的估算 ..........................................................................................................15 武漢工程 大學(xué)化工原理課程設(shè)計(jì)說(shuō)明書(shū) IV 精餾段 .......................................................................................................16 提餾段 .......................................................................................................17 第四章塔板工藝尺寸的計(jì)算 .................................................................................................. 18 精餾段塔板工藝尺寸計(jì)算 ................................................................................................18 溢流裝置的設(shè)計(jì) ....................................................................................................18 降液管的類(lèi)型與溢流方式 .............................................................................18 溢流裝置的設(shè)計(jì)計(jì)算 ...................................................................................18 溢流堰 ........................................................................................................18 弓形降液管 ..................................................................................................19 受液盤(pán) .........................................................................................................20 塔板設(shè)計(jì) ...............................................................................................................21 塔板布置 .....................................................................................................21 篩孔的計(jì)算及其排列 ...................................................................................21 篩孔的排列與篩孔數(shù) ....................................................................................22 開(kāi)孔率 .........................................................................................................22 篩孔分布圖 ..................................................................................................22 提餾段塔板工藝尺寸設(shè)計(jì) ................................................................................................23 溢流裝置計(jì)算 ........................................................................................................23 溢流堰高度 ..................................................................................................23 弓形降液管寬度和截面積 .............................................................................23 降液管底隙高度 ...........................................................................................23 塔板設(shè)計(jì) ...............................................................................................................24 塔板布置 .....................................................................................................24 篩孔的計(jì)算及其排列 ...................................................................................24 篩孔的排列與篩孔數(shù) ....................................................................................24 開(kāi)孔率 .........................................................................................................24 篩孔分布圖 ..................................................................................................25 板的流體力學(xué)性能驗(yàn)算 ....................................................................................................25 精餾段 ..................................................................................................................25 塔板壓降 ......................................................................................................25 液面落差 ......................................................................................................27 液沫夾帶 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