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化工原理课程设计-柴油原油换热器设计说明书精选
化工原理课程设计
柴油换热器设计说明书
设计者：班级：过控132
组长：
成员：
学生姓名：
日期 ：2015年9月4日
指导教师：
目录
一．设计说明书································································3二．设计条件及主要物性的确定···················································3
1．定性温度的确定·························································3
2．流体有关物性···························································3
三. 确定设计方案······························································4
选择换热器的类型······················································4
2．流程安排·······························································4
估算传热面积·····························································4
传热器的热负荷·······················································4
平均传热温差·························································4
传热面积估算·························································4
工程结构尺寸·····························································5
管径和管内流速························································5
管程数和传热管数······················································5
平均传热温差校正和壳程数··············································5
传热管排列和分程方法··················································5
壳程内径······························································6
折流板································································6
其他附件······························································6
接管··································································6
六．换热器核算·································································7
1.热流量核算·······························································7
（1）壳程表面传热系数···················································7
（2）管程表面传热系数···················································7
（3）污垢热阻和管壁热阻·················································8
（4）传热系数K·························································8
（5）传热面积裕度·······················································8
2.壁温核算······························································
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