【正文】 .......................................12 塔板流體力學驗算 .........................................................................................................13 氣相通過浮閥塔板的壓強降 ..................................................................................13 淹塔 ..........................................................................................................................14 霧沫夾帶 ..................................................................................................................14 塔板的負荷性能 .............................................................................................................14 霧沫夾帶線 ..............................................................................................................15 液泛線 ....................................................................................................................15 4 液體負荷上限線 ....................................................................................................15 漏夜線 ....................................................................................................................16 液相負荷下限線 ...................................................................................................16 ....................................................................................................................16 四 .熱平衡確定熱換器 ...................................................................................................................16 ..........................................................................................................................16 熱負荷 Qc ..................................................................................................................16 傳熱面積 A....................................................................................................................17 求平均溫度 .............................................................................................................17 K 值選定 .................................................................................................................17 傳熱面積 A.............................................................................................................17 循環(huán)水的用量計算 .......................................................................................................17 熱換器選用 ....................................................................................................................17 .............................................................................................................................18 熱負荷 QB......................................................................................................................18 傳熱面積 A.....................................................................................................................18 求平均溫度 ..............................................................................................................18 傳熱面積 A計算 .....................................................................................................18 過熱蒸汽的用量 ............................................................................................................18 再沸器的選用 .................................................................................................................18 ..............................................................................................................................19 求平均溫度 .....................................................................................................................19 求比熱和傳 熱的熱量 ....................................................................................................19 ...............................................................................................19 傳熱面積和過熱蒸汽的用量計算 ................................................................................19 預熱器選用 ....................................................................................................................19 塔釜產(chǎn)品冷卻器 ..........................................................................................................19 五、經(jīng)濟估算 ..................................................................................................................................20 塔主要設備經(jīng)費計算（ R1為例） ......................................................................................20 塔壁面積計算 .................................................................................................................20 塔板面積計算 .................................................................................................................20 ...................................................................................................20 .......................................................................................................20 主要操作費計算（ 10年）（ R1為例） ...............................................................................20 ..............................................................................................................20 過熱蒸汽的用量費用 ..................................................................................................20 p...................................................................................21 六、 個人總結(jié)及對本設計的評述 ...................................................................................................錯誤 !未定義書簽。裝置使用年限 15 年。 5. 塔頂采用 30℃的冷回流，冷卻水溫度 25℃，回用循環(huán)水溫度 45℃；塔底重沸器加熱介質(zhì)為比密度 的柴油，進口溫度 290℃，出口溫度 160℃。 廣東石油化工學院 化工原理課程設計 設計說明書 設計題目 萬噸 /年苯 — 甲苯連續(xù)精餾裝置工藝設計 2 化工原理課程設計任務書 (應化 10 級各班適用 )