合肥工业大学(宣城校区)化工原理课程设计说明书-分离甲醇、水混合物的板式精馏塔设计.docx

分离甲醇、水混合物的板式精馏塔设计 课程设计 课程设计 设计题目 分离甲醇、水混合物的板式精馏塔设计 学生姓名 学号 专业班级 指导教师 姚运金 2015年7月3日 合肥工业大学课程设计任务书 设计题目 分离甲醇、水混合物的板式精馏塔设计 成绩 课 程 设 计 主 要 内 容 设计任务：设计一座分离甲醇、水混合物的连续常压精馏塔 生产能力：100000吨甲醇/年；液料含甲醇40wt%，馏出液含甲醇不少于98 wt %，残夜含甲醇不大于0.05wt%。 操作条件： （1）泡点进料，回流比需优化。 （2）塔釜加热蒸汽压力：间接0.2MPa（表压），直接0.1MPa（绝压）。 （3）塔顶全凝器冷却水进口温度20℃。 （4）常压操作。年工作日300~320天，每天工作24小时。 （5）设备形式：筛板塔。 （6）安装地点：安庆 任务来源：中国石油化工股份有限公司安庆分公司 设计主要内容： 工艺流程的确定，工艺流程采用计算机仿真设计，塔和塔板的工艺尺寸计算，塔板的流体力学验算及负荷性能图，辅助设备的计算与选型，主体设备的机械设计。 设计报告： 1、设计说明书一份。 2、主体设备总装图一张（1#图纸），带控制点工艺流程图（3#图纸）一张。 指 导 教 师 评 语 建议：从学生的工作态度、工作量、设计（论文）的创造性、学术性、实用性及书面表达能力等方面给出评价。 签名： 2015年 月 日 目录 摘要···································································1 绪论···································································2 一、板式精馏塔设计流程说明·········································3 （一）设计方案的确定···············································3 1、装置流程的确定············································3 2、操作压力的选择············································3 3、进料状况的选择············································4 4、加热方式的选择············································4 5、回流比的选择··············································4 塔板的类型与选择············································5 泡罩塔···················································5 筛板塔···················································5 3、浮阀塔···················································5 二、板式精馏塔的设计计算···········································6 （一）精馏塔全塔物料衡算···········································6 （二）回流比和塔板数的确定·········································7 （三）灵敏度分析·················································10 用详细计算模块（RadFrac）进行计算·························13 三、塔和塔板主要工艺尺寸计算·····································20 （一）塔径························································20 （二）溢流装置····················································26 （三）塔板布置····················································29 （四）筛孔数目与开孔率············································30 （五）塔的有效高度·