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毕业设计说明书
目 录
摘 要 ····································································Ⅲ
ABSTRACT ·····························································Ⅳ
1 绪 论
1.1 本设计的研究背景和意义· ··············································· 1
1.1.1 本设计的研究背景· ·················································· 1
1.1.2 本设计的研究意义· ·················································· 1
1.2 换热器在生产中的作用和地位· ··········································· 1
1.3 换热器的分类· ·························································2
1.4 换热器的发展及国内外研究现状· ·········································5
1.5 换热器的发展动向· ················································ 6
1.6 三维造型技术的应用· ················································· 6
1.7 本设计的研究内容及方法· ················································8
1.7.1 本设计的研究内容· ····················································8
1.7.2 本设计的研究方法· ····················································9
2 蛇管式换热器整体结构设计
2.1 管径及介质进入蛇管内外的选择· ··········································9
2.2 冷热流体物性数据的确定· ················································9
2.3 传热面积的计算· ························································9
2.4 蛇管长度及组数的确定· ··················································10
2.5 管间距 h和内、 外圈间距 t 的确定· ··········································11
2.6 筒体直径及材料、 蛇管圈数及高度的确定· ···································11
2.7 封头尺寸及材料的确定· ··················································12
2.8 吊耳尺寸的确定· ························································13
2.9 支座尺寸的确定· ························································13
2.10 筒体法兰尺寸的确定· ···················································14
I
毕业设计说明书
3 换热器零部件的强度校核
3.1 筒体壁厚计算及校核· ····················································15
3.1.1 筒体壁厚计算· ·······················································15
3.1.2 筒体壁厚校核· ·······················································15
3.2 封头壁厚计算及校核· ···················································16
3.2.1 封头壁厚计算· ·······························
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