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:吴世杰
成员:刘云杰李亚芳郑仕业刁昌东王宇
学生姓名:吴世杰
日期:2015年9月4日
指导教师:佟白
目录
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三. 确定设计方案······························································4
选择换热器的类型······················································4
·······························································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
·································································7
·······························································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
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