设计说明书 封皮及格式最新

中原工学院 材料与化工学院

化工原理课程设计说明书

设计名称： 班 级： 组 别： 组 员： 指导老师：

日 期：2013 年 12月28日

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设计任务书

一、设计题目

3000吨酒精连续填料精馏塔设计

二、设计任务及操作条件

1、 设计任务：

生产能力（塔顶产品） 3000 吨／年 操作周期 300 天／年

进料组成 35 （质量分数，下同） 塔顶产品组成 ≥94％ 塔底产品组成 ≤0.1％ 2、 操作条件

操作压力 常压 （塔顶） 进料热状态 35℃ 3、 设备型式 自选 4、 厂 址 郑 州 地 区 三、设计内容：

(1) 精馏塔的物料衡算； (2) 塔板数的确定；

(3) 精馏塔的工艺条件及有关物件数据的计算； (4) 精馏塔的塔体工艺尺寸计算； (5) 塔板主要工艺尺寸的计算； (6) 塔板的流体力学验算； (7) 塔板负荷性能图； (8) 精馏塔接管尺寸计算； (9) 绘制生产工艺流程图； (10) 绘制精馏塔设计条件图；

(11) 对设计过程的评述和有关问题的讨论。

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四、参考资料

1. 陈英南，刘玉兰. 常用化工单元设备的设计. 上海：华东理工大学出版社，2005 2. 黄璐，王保国. 化工设计. 北京：化学工业出版社，2001

3. 贾绍义，柴诚敬. 化工原理课程设计（化工传递与单元操作课程设计）. 天津：天津大学

出版社，2002

4. 陈敏恒，丛德兹等. 化工原理(上、下册)(第二版). 北京：化学工业出版社，2000 5. 柴诚敬，刘国维，李阿娜. 化工原理课程设计. 天津：天津科学技术出版社，1995 6. 石油化学工业规划设计院. 塔的工艺计算. 北京：石油化学工业出版社，1997

7. 化工设备技术全书编辑委员会. 化工设备全书—塔设备设计. 上海：上海科学技术出版

社，1988

8. 时钧，汪家鼎等. 化学工程手册，. 北京：化学工业出版社，1986

9. 上海医药设计院. 化工工艺设计手册(上、下). 北京：化学工业出版社，1986

10. 大连理工大学化工原理教研室. 化工原理课程设计. 大连：大连理工大学出版社，1994

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目 录

一、概述 ·············································································································· 6

1. 设计依据 ·································································································· 6 1. 技术来源 ·································································································· 6 1. 设计任务及要求 ······················································································· 6 二、计算过程 ······································································································· 7

1. 塔型选择 ·································································································· 7 2. 操作条件的确定 ······················································································· 7

2.1 操作压力 ························································································· 7 2.2 进料状态 ························································································· 8 2.3 加热方式 ························································································· 8 2.4 热能利用 ························································································· 8 3. 有关的工艺计算 ······················································································· 8

3.1 最小回流比及操作回流比的确定··················································· 9 3.2 塔顶产品产量、釜残液量及加热蒸汽量的计算 ···························· 9 3.3 全凝器冷凝介质的消耗量 ···························································· 10 3.4 热能利用 ······················································································· 10 3.5 理论塔板层数的确定 ···································································· 11 3.6 全塔效率的估算 ··········································································· 11

3.7 实际塔板数NP ············································································ 12 4. 精馏塔主题尺寸的计算 ········································································· 13 4.1 精馏段与提馏段的体积流量 ························································ 13

4.1.1 精馏段 ················································································ 13 4.1.2 提馏段 ················································································ 14 4.2 塔径的计算 ··················································································· 15 4.3 塔高的计算 ··················································································· 17 5. 塔板结构尺寸的确定 ············································································· 18

5.1 塔板尺寸 ······················································································· 18 5.2 弓形降液管 ··················································································· 19

5.2.1 堰高 ···················································································· 19 5.2.2 降液管底隙高度h0 ····························································· 19 5.2.3 进口堰高和受液盘 ····························································· 19 5.3 浮阀数目及排列 ··········································································· 19

5.3.1 浮阀数目 ············································································ 19 5.3.2 排列 ···················································································· 20 5.3.3 校核 ···················································································· 20

6. 流体力学验算························································································· 21

6.1 气体通过浮阀塔板的压力降(单板压降)hp ································· 21

6.1.1 干板阻力hc ······································································· 21

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