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苯-氯苯分離精餾塔——浮閥塔設(shè)計(jì)化工原理課程設(shè)計(jì)-展示頁

2025-07-08 16:17本頁面
  

【正文】 測(cè)量,塔釜上升蒸汽量可通過采用釜液溫度或靈敏板進(jìn)行控制,塔壓可采用穩(wěn)壓閥控制,并可裝載自動(dòng)安全閥。 4目錄前 言 .........................................................................................................................................................61.設(shè)計(jì)方案的思考 .............................................................................................................................6 ...............................................................................................................................63.工藝流程的確定 .............................................................................................................................6一.設(shè)備工藝條件的計(jì)算 .......................................................................................................................81.設(shè)計(jì)方案的確定及工藝流程的說明 .............................................................................................82.全塔的物料衡算 .............................................................................................................................8 料液及塔頂?shù)桩a(chǎn)品含苯的摩爾分率 .......................................................................................8 平均摩爾質(zhì)量 ...........................................................................................................................8 料液及塔頂?shù)桩a(chǎn)品的摩爾流率 ...............................................................................................83.塔板數(shù)的確定 .................................................................................................................................9 理論塔板數(shù) 的求取 ............................................................................................................9TN 確定操作的回流比 R..............................................................................................................10 求理論塔板數(shù) ..........................................................................................................................11 全塔效率 ..........................................................................................................................12TE 實(shí)際塔板數(shù) (近似取兩段效率相同) .........................................................................13pN4.操作工藝條件及相關(guān)物性數(shù)據(jù)的計(jì)算 .......................................................................................13 平均壓強(qiáng) ...........................................................................................................................13m 平均溫度 ...........................................................................................................................14t 平均分子量 ......................................................................................................................14mM 平均密度 ............................................................................................................................15ρ 液體的平均表面張力 ......................................................................................................16mσ 液體的平均粘度 ............................................................................................................17Lμ, 氣液相體積流量 .....................................................................................................................186 主要設(shè)備工藝尺寸設(shè)計(jì) ..................................................................................................................19 塔徑 .........................................................................................................................................197 塔板工藝結(jié)構(gòu)尺寸的設(shè)計(jì)與計(jì)算 ..................................................................................................20 溢流裝置 .................................................................................................................................20 塔板布置 .................................................................................................................................23二 塔板流的體力學(xué)計(jì)算 .......................................................................................................................251 塔板壓降 ..........................................................................................................................................2552 液泛計(jì)算 ..........................................................................................................................................273 霧沫夾帶的計(jì)算 ..............................................................................................................................284 塔板負(fù)荷性能圖 ..............................................................................................................................30 霧沫夾帶上限線 .....................................................................................................................30 液泛線 .....................................................................................................................................31 液相負(fù)荷上限線 .....................................................................................................................32 氣體負(fù)荷下限線(漏液線) .................................................................................................33 液相負(fù)荷下限線 .....................................................................................................................33三 板式塔的結(jié)構(gòu)與附屬設(shè)備 ...............................................................................................................351 塔頂空間 ..........................................................................................................................................352
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