【正文】 ............ 18 塔板壓降 ............................................................................................ 18 陜西理工 學(xué)院畢業(yè)設(shè)計(jì) 液面落差 ............................................................................................ 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 ...................................................................