列管式换热器_煤油换热器_工程原理课设.doc

《列管式换热器_煤油换热器_工程原理课设.doc》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、下载可编辑南京工业大学《材料工程原理B》课程设计设计题目：列管式换热器设计—煤油处理能190000吨/年专业：无机非金属材料工程班级：卓越工程师班学号：1101130317姓名：业奇日期：2016年11月25日~2016年12月9日指导教师：钱海燕设计成绩：日期：.专业.整理.下载可编辑目录一、设计任务书····························································二、设计方案简介··························································1.换热器的

2、选择························································2.流体流动空间的选择··················································三、主要物性参数··························································四、计算传热面积··························································1.热流量·····························

3、··································2.平均传热温度差·······················································3.冷却水用量···························································五、换热器工艺结构尺寸·····················································1..初选换热器规格···············································

4、······2.估算传热面积·························································六、换热器核算·····························································1.总传热系数核算·······················································2.裕量计算·····························································3.压强降计算········

5、···················································七、设计结果概要···························································八、设计的评述·····························································.专业.整理.下载可编辑九、主要参考资料···························································十、换热器总装配图···········

6、··············································一、设计任务书在某生产过程中，用循环冷却水将煤油油由102℃冷却至40℃。已知换热器的年处理量为19×104吨/年；水的进口温度和出口温度分别为20℃和28℃。假设每年按330天计，每天24小时连续运行，试设计一台列管式换热器，完成该生产任务。1、处理能力列管换热器设计—煤油处理能力19×104吨/年2、设备型式列管式换热器3、操作条件（1）釜残液：煤油，入口温度102℃，出口温度40℃（2）冷却介质：井水.专业.整理.下载可编辑（3）换热器的管程和壳程压强降：不大于50k

7、Pa（4）煤油平均温度下的物性参数：名称（kg/m3）Cp(kJ/㎏.℃)（Pa.s）(W/m.℃)煤油9864.190.54×10-30.662二、设计方案简介在本次设计任务中，两流体的温度变化情况为：热流体（煤油）进口温度102℃，出口温度40℃；冷流体（井水）进口温度为20℃，出口温度28℃。由于冷、热流体间温差不大于50℃，故选用固定板式列管换热器，换热器两端管板和壳体连接成一体。这类换热器结构简单，价格低廉，但管外清洗困难，宜处理两流体温差小于50℃且壳方流体较清洁及不宜结构的物料。1.换热器的选择2.流体流动空间的选择对列管式换热器，流体流经管程还是课

8、程，遵循以