化工课程设计 换热器设计说明书.docx

PAGE \* MERGEFORMAT18 换热器设计说明书 姓名 学号 专业 2013-9  目录  TOC \o 1-3 \h \z \u  HYPERLINK \l _Toc366794084 1设计任务  PAGEREF _Toc366794084 \h 3  HYPERLINK \l _Toc366794085 2确定设计方案  PAGEREF _Toc366794085 \h 3  HYPERLINK \l _Toc366794086 2.1换热器类型  PAGEREF _Toc366794086 \h 3  HYPERLINK \l _Toc366794087 2.2流动空间及流速  PAGEREF _Toc366794087 \h 3  HYPERLINK \l _Toc366794088 3确定物性数据  PAGEREF _Toc366794088 \h 3  HYPERLINK \l _Toc366794089 4计算总传热系数  PAGEREF _Toc366794089 \h 4  HYPERLINK \l _Toc366794090 4.1热负荷  PAGEREF _Toc366794090 \h 4  HYPERLINK \l _Toc366794091 4.2冷却水用量  PAGEREF _Toc366794091 \h 4  HYPERLINK \l _Toc366794092 4.3对数平均温度  PAGEREF _Toc366794092 \h 4  HYPERLINK \l _Toc366794093 4.4总传热系数  PAGEREF _Toc366794093 \h 5  HYPERLINK \l _Toc366794094 5计算传热面积  PAGEREF _Toc366794094 \h 5  HYPERLINK \l _Toc366794095 6主要工艺结构基本参数的计算与确定  PAGEREF _Toc366794095 \h 6  HYPERLINK \l _Toc366794096 6.1管程数，换热管数量及长度  PAGEREF _Toc366794096 \h 6  HYPERLINK \l _Toc366794097 6.2平均传热温差校正及壳程数  PAGEREF _Toc366794097 \h 6  HYPERLINK \l _Toc366794098 6.3传热管排列和分程方式  PAGEREF _Toc366794098 \h 6  HYPERLINK \l _Toc366794099 6.4壳体内径  PAGEREF _Toc366794099 \h 7  HYPERLINK \l _Toc366794100 6.5折流板  PAGEREF _Toc366794100 \h 7  HYPERLINK \l _Toc366794101 6.6壳体壁厚  PAGEREF _Toc366794101 \h 7  HYPERLINK \l _Toc366794102 6.7接管  PAGEREF _Toc366794102 \h 8  HYPERLINK \l _Toc366794103 6.8拉杆  PAGEREF _Toc366794103 \h 9  HYPERLINK \l _Toc366794104 6.9定距管  PAGEREF _Toc366794104 \h 9  HYPERLINK \l _Toc366794105 6.10管板  PAGEREF _Toc366794105 \h 9  HYPERLINK \l _Toc366794106 6.11封头与管箱  PAGEREF _Toc366794106 \h 9  HYPERLINK \l _Toc366794107 6.12温度补偿  PAGEREF _Toc366794107 \h 10  HYPERLINK \l _Toc366794108 7换热器核算  PAGEREF _Toc366794108 \h 10  HYPERLINK \l _Toc366794109 7.1热量核算  PAGEREF _Toc366794109 \h 10  HYPERLINK \l _Toc366794110 7.1.1壳程对流传热系数  PAGEREF _Toc36679