【正文】 ................................................................ 19 液沫夾帶 ......................................................................................... 19 漏液 ................................................................................................. 19 液泛 ................................................................................................. 19 塔板負(fù)荷性能圖 .................................................................................... 19 漏液線 ............................................................................................. 19 液沫夾帶線 ..................................................................................... 20 液相負(fù)荷下限線 .............................................................................. 20 液相負(fù)荷上限線 .............................................................................. 21 液泛線 ............................................................................................. 21 精餾塔接管尺寸計(jì)算 ............................................................................ 22 塔頂蒸氣出口管的直徑 .................................................................. 22 回流管的直徑 .................................................................................. 22 進(jìn)料管的直徑 .................................................................................. 22 塔底出料管的直徑 .......................................................................... 23 5 甲醇精餾塔結(jié)構(gòu)計(jì)算 .................................................................................. 24 設(shè)計(jì)方案的確定 .................................................................................... 24 精餾塔的物料衡算 ................................................................................ 24 原料液及塔頂和塔底的摩爾分率 .................................................. 24 原料液及塔頂和塔底產(chǎn)品的平均摩爾質(zhì)量 ................................... 24 物料衡算 ......................................................................................... 24 塔板數(shù)的確定 ........................................................................................ 24 理論板層數(shù)的求取 ............................................................................. 24 實(shí)際板層數(shù)的求取 .......................................................................... 26 精餾塔的工藝條件及有關(guān)物性數(shù)據(jù)的計(jì)算 ......................................... 26 操作壓力的計(jì)算 .............................................................................. 26 操作溫度計(jì)算 .................................................................................. 27 平均 摩 爾質(zhì)量計(jì)算 .......................................................................... 27 平均密度計(jì)算 .................................................................................. 27 液體平均表面張力的計(jì)算 .............................................................. 28 液體平均粘度 .................................................................................. 28 精餾塔的塔體工藝尺寸計(jì)算 ................................................................. 29 塔徑的計(jì)算 ..................................................................................... 29 精餾塔有效高度的計(jì)算 .................................................................. 30 塔板主要工藝尺寸的計(jì)算 ..................................................................... 30 溢 流 裝置計(jì)算 .................................................................................. 30 塔板布置 ......................................................................................... 31 塔板的流體力學(xué)驗(yàn)算 ............................................................................ 32 塔板壓降 ......................................................................................... 32 液面落差 ......................................................................................... 33 液沫夾帶 ......................................................................................... 33 漏液 ................................................................................................. 33 液泛 ................................................................................................. 33 塔板負(fù)荷性能圖 .................................................................................... 34 漏液線 ............................................................................................. 34 液沫夾帶線 ..................................................................................... 34 液相負(fù)荷下限線 .............................................................................. 35 陜西理工學(xué)院畢業(yè)設(shè)計(jì) 液相負(fù)荷上限線 .............................................................................. 35 液泛線 ............................................................................................. 35 精餾塔接管尺寸計(jì)算 ............................................................................ 37 塔頂蒸氣出口管的直徑 .................................................................. 37 回流管的直徑 .................................................................................. 37 進(jìn)料管的直徑 .................................................................................. 37 塔底出料管的直徑 .......................................................................... 38 6 甲醇精餾塔塔內(nèi)件機(jī)械強(qiáng)度設(shè)計(jì)及校核 ................................................... 39 精餾塔筒體和裙座壁厚計(jì)算 ................................................................. 39 精餾塔塔的質(zhì)量載荷計(jì)算 ..................................................................... 39 塔殼和裙座的質(zhì)量 .......................................................................... 39 封頭質(zhì)量 ......................................................................................... 39 裙座質(zhì)量 ......................................................................................... 39 塔內(nèi)構(gòu)件質(zhì)量 .................................................................................. 39 人孔、法蘭、接管與附屬物質(zhì)量 .................................................. 40 保溫材料質(zhì)量 .................................................................................. 40 平臺(tái)、扶梯質(zhì)量 ..................................