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化工原理課程設(shè)計--雙組分連續(xù)精餾篩板塔的設(shè)計-wenkub

2023-06-14 07:56:21 本頁面
 

【正文】 ?? 計算最小回流比 Rmin 因為進料狀態(tài)為泡點進料,所以 q=1,則?? Fq xx )(1 )1(1 ???? ?????qqq xxy ?? ???????qqqD xy yxR 采用逐板法計算 ? ? m ~ RR ? 求相平衡方程式,并化成最簡的形式 ynyn)( ynyn)1( ynXn ???????? ?? 初選操作回流比計算理論塔板數(shù) ( 1)當(dāng) RR? = = 時 , 精餾段操作線方程 ???????? nDnn xR xxR Ry ??? nn xy 提留段操作線方程 雙組分連續(xù)精餾篩板塔設(shè)計說明書 5 ///1 ??????? ??? mWmm xxWFL WxWFL FLy //1 ??? mm xy 用逐板計算法計算精餾段的板數(shù) :(平衡方程與精餾段操作線方程聯(lián)立逐步求解) 1yxD? = X1=→ y2=→ X2 =→ y3 = → X3=→ y4=→ X4=→ y5 = → X5=→ y6=→ X6=→ y7 = → X7=→ y8=→ X8=→ y9 = → X9=→ y10 =→ X10= XF= 所以精餾段的理論板數(shù)為 n1=101=9 塊 用逐板計算法計算提餾段的板數(shù) :(平衡方程與提餾段操作線方程聯(lián)立逐步求解) /13/12/12/11/11/10/10/9/9/8/8/7/7/6/6/5/5/4/4/3/3/2/214/1/????????????????????????????????????????????????yxyxyxyxyxyxyxyxyxyxyxyxx0 2 2 1 2 ??? wxx 所以提餾段的理論板數(shù)為 m1=131=12 塊 所以該精餾塔的總理論板數(shù)為 13+12=25 塊 同理可得: ( 2)當(dāng) RR? = = 雙組分連續(xù)精餾篩板塔設(shè)計說明書 6 精餾段 : 121211111010998877665544332211???????????????????????????????????????????????xyxyxyxyxyxyxyxyxyxyxyxyx D ?? Fxx 所以精餾段的理論板數(shù)為 n1=121=11 塊 提餾段 : /11/11/10/10/9/9/8/8/7/7/6/6/5/5/4/4/3/3/2/212/1/??????????????????????????????????????????xyxyxyxyxyxyxyxyxyxyxx ?? Wxx 所以提餾段的理論板數(shù)為 m1=111=10 塊 所以該精餾塔的總理論板數(shù)為 11+10=21 塊 ( 3)當(dāng) RR? = = 精餾段: 111010998877665544332211????????????????????????????????????????????xyxyxyxyxyxyxyxyxyxyxyx D ?? Fxx 所以精餾段的理論板數(shù)為 n1=111=10 塊 提餾段: 雙組分連續(xù)精餾篩板塔設(shè)計說明書 7 /10/10/9/9/8/8/7/7/6/6/5/5/4/4/3/3/2/211/1/??????????????????????????????????????xyxyxyxyxyxyxyxyxyxx ?? Wxx 所以提餾段的理論板數(shù)為 m1=101=9 塊 所以該精餾塔的總理論板數(shù)為 10+9=19 塊 ( 4)當(dāng) RR? = = 精餾段: 1010998877665544332211????????????????????????????????????????xyxyxyxyxyxyxyxyxyxyx D ?? Fxx 所以精餾段的理論板數(shù)為 n1=101=9 塊 提餾段: /10/10/9/9/8/8/7/7/6/6/5/5/4/4/3/3/2/210/1/??????????????????????????????????????xyxyxyxyxyxyxyxyxyxx ?? Wxx 所以提餾段的理論板數(shù)為 m1=101=9 塊 所以該精餾塔的總理論板數(shù)為 n+m=9+9=18 塊 ( 5)當(dāng) RR? = = 雙組分連續(xù)精餾篩板塔設(shè)計說明書 8 精餾段; 8 5 3 1010998877665544332211????????????????????????????????????????xyxyxyxyxyxyxyxyxyxyx D ?? Fxx 所以精餾段的理論板數(shù)為 n1=101=9 塊 提餾段: /9/9/8/8/7/7/6/6/5/5/4/4/3/3/2/210/1/??????????????????????????????????xyxyxyxyxyxyxyxyxx ?? Wxx 所以提餾段的理論板數(shù)為 m1=91=8 塊 所以該精餾塔的總理論板數(shù)為 9+8=17 塊 ( 6)當(dāng) RR? = = 精餾段: 998877665544332211????????????????????????????????????xyxyxyxyxyxyxyxyxyx D ?? Fxx 所以精餾段的理論板數(shù)為 n1=91=8 塊 提餾段: 雙組分連續(xù)精餾篩板塔設(shè)計說明書 9 /9/9/8/8/7/7/6/6
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