乙醇预热器的设计

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1、乙醇液预热器的设计辽宁科技学院课程设计课程名称：化工原理课程设计题目：乙醇液预热器的设计系部：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：田景利职称：设计完成时间：2012年1月10日20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：设计条件数据物料流量kg/h组成（含乙醇量）mol%温度℃操作压力　MPa进口出口釜液10977

2、93.3145　0.9原料液1026807951280.53（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1999.5柴城敬等《化工原理课程设计指导》天津大学出版社1999.5

3、7.设计人：学号：8.设计进程指导教师布置设计题目0.5天设计方案确定0.5天工艺计算1.5天设备计算3.5天绘图2.0天编写实践说明书1.0天答辩1.0天应用化学教研室2011年12月20日20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······································

4、······················61、参数的计算·····························································62、换热器型号的选取·························································93、传热排列方法及壳体内径···················································114、折流挡板··································································1

5、25、接管·····································································12三、总传热系数的核算·······················································131、管程核算··································································1320乙醇液预热器的设计1、壳程核算·································································

6、133、管壳程压力降核算··························································144、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·········

7、···················································20七、主要符号说明·····························································20设计装置图（详情参见图纸）任务书说明本课程设计任务是乙醇液预热器的设计。是利用塔釜液对原料液进行加温。设计条件：20乙醇液预热器的设计某有机合成厂的乙醇车间在节能改