乙醇预热器的设计.doc

乙醇预热器的设计
乙醇液预热器的设计
辽宁科技学院
课程设计
课程名称:
课程设计题目:
系部: 化工原理乙醇液预热器的设计生物医药与化学工程学院
专业: 应用化学学生姓名: 杨亚雄
班级: 应化BG101 学号: 6414110123 指导教师姓名:
设计完成时间: 田景利职称: 2012年1月10日
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乙醇液预热器的设计
化工原理课程设计任务书
1. 设计题目:
乙醇液预热器的设计
2. 设计条件:
某有机合成厂的乙醇车间在节能改造中,为回收系统内第一萃取塔釜液的热量,用其釜液将原料液从95℃预热至128℃,原料液及釜液均为乙醇,水溶液,其操作条件列表如下:
设计条件数据
(1) 处理能力:6000m3/h(标准状况);
(2) 设备型式:列管换热器;
(3) 允许压强降:管程压强降小于10kPa;壳程总压强降小于60kPa。
3. 设计计算内容:
(1) 传热面积、换热管根数;
(2) 确定管束的排列方式、程数、挡板、隔板的规格和数量;
(3) 壳体的内径;
(4) 冷、热流体进、出口管径;
(5) 核算总传热系数
(6) 管壳程流体阻力校核。
4. 设计成果:
(1) 设计说明书一份;
(2) 换热器工艺条件图。
5. 设计时间:
兩周。
6. 参考文献
姚玉英等《化工原理》天津大学出版社
柴城敬等《化工原理课程设计指导》天津大学出版社
7. 设计人:学号:
8. 设计进程
指导教师布置设计题目
设计方案确定
工艺计算
设备计算
绘图
编写实践说明书
答辩
应用化学教研室
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乙醇液预热器的设计
2011年12月20日 3
乙醇液预热器的设计
目录
任务书说明··································································4
一、概述···································································5
二、确定设计方案····························································
6
1、参数的计算·····························································6
2、换热器型号的选取·························································9
3、传热排列方法及壳体内径··················································· 11
4、折流挡板··································································12
5、接管·····································································12
三、总传热系数的核算·······················································
13
1、管程核算··································································13
2、壳程核算·································································13
3、管壳程压力降核算··························································14
4、总传热系数核算对··························································16
四、设计结果一览表···························································18
五、设计者心得体会···························································19
六、主要参考文献·········································