【正文】 ........................................................2. 塔的物料衡算 ..................................................................................................................2. 查閱文獻(xiàn)，整理有關(guān)物性數(shù)據(jù) ..............................................................................2. 料液及塔頂、塔底產(chǎn)品的摩爾分?jǐn)?shù) ......................................................................3. 平均摩爾質(zhì)量 ..........................................................................................................3. 物料衡算 ..................................................................................................................3. 塔板數(shù)的確定 ..................................................................................................................3. 乙醇— 水物系的氣液平衡數(shù)據(jù) .......................................................................4. 求最小回流比 及操作回流比 .........................................................................4. 求精餾塔的氣液相負(fù)荷 ...................................................................................4. 求操作線方程 ...................................................................................................4. 圖解法求理論塔板層數(shù) ...................................................................................4. 求實(shí)際塔板數(shù) ..................................................................................................5 塔的工藝條件及物性數(shù)據(jù)計(jì)算 ..................................................................................6. 操作壓力 ...........................................................................................................6. 平均摩爾質(zhì)量 ...................................................................................................7. 平均密度 .......................................................................................................7 氣相密度 .......................................................................................................7 液相平均密度 ...............................................................................................7. 液體表面張力 ...................................................................................................8 精餾塔的塔體工藝尺寸計(jì)算 ...................................................................................9. 塔徑的計(jì)算 .......................................................................................................9. 精餾塔有效高度的計(jì)算 ...................................................................................9 塔板主要工藝尺寸的計(jì)算 .......................................................................................9. 堰長(zhǎng) ...................................................................................................................9. 溢流堰高度 .....................................................................................................10. 弓形降液管寬度和截面積 .............................................................................10. 降液管底隙高度 .............................................................................................11 塔板布置 .................................................................................................................11. 塔板的分塊 .....................................................................................................12. 邊緣區(qū)寬度確定 .............................................................................................12. 開孔區(qū)面積計(jì)算 .............................................................................................13 塔版流體力學(xué)驗(yàn)算 .................................................................................................13. 氣相通過浮閥塔板的壓強(qiáng)降 .........................................................................13. 液沫夾帶 .........................................................................................................14. 漏液 .................................................................................................................14. 液泛 .................................................................................................................14 塔板負(fù)荷性能圖 .....................................................................................................14. 漏液線 .............................................................................................................15. 液沫夾帶線 .....................................................................................................15. 液相負(fù)荷下限線 .............................................................................................16. 液相負(fù)荷上限線 .............................................................................................16. 液泛線 .............................................................................................................16. 漏液線 .............................................................................................................163. 塔盤的結(jié)構(gòu)設(shè)計(jì) ................................................................................................................19 塔板結(jié)構(gòu) .................................................................................................................19. 矩形板 .............................................................................................................19. 通道板 .............................................................................................................22. 弧形板 .............................................................................................................22 受液盤 .....................................................................................................................23. 凹形受液盤 .....................................................................................................23. 液封盤 .............................................................................................................24 降液板 .....................................................................................................................24 支持板和支持圈 .....................................................................................................25 緊固件結(jié)構(gòu) ......................