化工原理课程设计..doc

本科生（化工原理）课程设计 题 目 年产10万吨甲苯精馏塔的设计 学生姓名 张淑云 黄桂林 王泽尉 指导老师 徐琼 学 院 树达学院 专业班级 化学工程与工艺 完成时间 2014年12月 目录 Ⅰ.设计任务书············································5 Ⅱ.设计说明书 工艺流程的确定和说明······························6 精馏塔的工艺计算 2.1 操作条件的相关计算·······························7 一、操作压力、塔顶温度、塔底温度的确定···················7 二、相对挥发度的计算和最小回流比、操作回流比的确定·······10 2.2全塔物料衡算和热量衡算····························10 一、物料衡算·············································10 二、热量衡算·············································11 2.3理论塔板数和实际塔板数的计算······················16 一、理论塔板数的计算·····································16 二、全塔效率的估算·······································17 三、实际塔板数···········································17 精馏塔主要尺寸设计计算 3.1基础物性数据计算··································17 一、液相平均密度及液相体积流量的计算·····················17 二、气相平均密度及气相体积流量的计算·····················18 三、液相平均表面张力的计算·······························18 3.2塔径的计算········································19 3.3塔高的计算········································20 一、塔板间距的估算·······································20 二、溢流装置·············································20 三、塔的有效高度和总高度·································20 塔盘的设计和计算 4.1塔板布置··········································22 4.2筛孔计算和排列····································22 塔板流体力学性能 5.1塔板流体力学性能的参数及校核·····················23 5.2塔板性能负荷图····································25 5.3筛板设计计算的主要结果····························27 塔附属设备的选型及计算····························28 一、换热器的选型及计算···································28 二、原料预热器···········································30 三、塔底再沸器···········································31 6.1相关管路管径的确定································33 6.2泵的选型与计算····································34 6.3储罐的选型与计算··································35 参考著作和文献···········································37 结束语···················································38 Ⅲ.附录 说符号明 图纸 Ⅰ.设计任务书 化工原理课程设计任务书（2012级雷霆队设计题目