乙醇-水精馏塔课程设计浮阀塔

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1、目录设计任务书··············································4第一章前言············································5第二章精馏塔过程的确定······························6第三章精馏塔设计物料计算····························73.1水和乙醇有关物性数据································73.2塔的物料衡算··········

2、······························83.2.1料液及塔顶、塔底产品及含乙醇摩尔分率··············83.2.2平均分子量········································83.2.3物料衡算··········································83.3塔板数的确定··········································83.3.1理论塔板数的求取···············

3、···············83.3.2求理论塔板数··································93.4塔的工艺条件及物性数据计算···························113.4.1操作压强28······································123.4.2温度···········································123.4.3平均分子量································

4、···123.4.4平均密度······································133.4.5液体表面张力································133.4.6液体粘度····································143.4.7精馏段气液负荷计算·······························14第四章精馏塔设计工艺计算·····························154.1塔径···········

5、··································154.2精馏塔的有效高度计算······························164.3溢流装置··········································164.3.1堰长·······································164.3.2出口堰高··································164.3.3降液管的宽度与降液管的面积·········

6、···164.3.4降液管底隙高度····························17284.4塔板布置及浮阀数目排列···························174.5塔板流体力学校核·································184.5.1气相通过浮塔板的压力降·······················184.5.2淹塔·········································184.6雾沫夹带················

7、·························184.7塔板负荷性能图···································194.7.1雾沫夹带线···································194.7.2液泛线·······································204.7.3液相负荷上限线·······························204.7.4漏液线（气相负荷下限线）····················

8、··204.7.5液相负荷下限线·······························214.8塔板负荷性能图···································22设计计算结果总表·······································23符号说明·················································24关键词28·······························