文档介绍：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日化工原理课程设计任务书设计题目:乙醇液预热器的设计设计条件: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 :6000m3/h(标准状况);设备型式:列管换热器;允许压强降:管程压强降小于10kPa;壳程总压强降小于60kPa。设计计算内容:传热面积、换热管根数;确定管束的排列方式、程数、挡板、隔板的规格和数量;壳体的内径;冷、热流体进、出口管径;核算总传热系数管壳程流体阻力校核。设计成果:设计说明书一份;换热器工艺条件图。设计时间:兩周。参考文献姚玉英等《化工原理》《化工原理课程设计指导》:学号:··································································4概述···································································5二、确定设计方案····························································6参数的计算·····························································6换热器型号的选取·························································93、传热排列方法及壳体内径···················································11折流挡板··································································12接管·····································································12三、总传热系数的核算·······················································13管程核算··································································13壳程核算·································································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设计者心得体会···························································19六、主要参考文献····························································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: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