温水换热器的设计及有限元分析+CAD图纸
毕业论文关键字：U型管换热器；工艺；结构；强度；有限元分析
Design and finite element analysis of warm water heat exchanger
Abstract: This is the content of the course design of U-tube heat exchanger. Heat exchanger is the equipment that transfers a part of heat from the hot fluid to the cold. It is mainly carried out the design of heat exchanger structural design, strength of design and parts selection process design. U-tube heat exchanger has only one tube sheet, tubes are fixed at both ends of boards in the same tube, and tubes could telescopic freely, non-thermal stress, thermal performance and compensation; use of double-tube process, the process is long, higher speed, better heat transfer performance, pressure capacity, and control can be extracted from the shell with easy maintenance and cleaning, and simple structure cost less. The main structure of U-tube heat exchanger, includes equipment control, shell, head, exchanger tubes, nozzles, baffled, impingement baffle, guide shell, anti-short-circuit structure, support and other shell-tube accessories. Various factors taken into account, the structural design is reasonable and economic, while it satisfies the requirements of the manufacture, maintenance, assembling, transportation and so on. The heat exchanger materials and the size of main structures have been chosen properly to meet the strength, stiffness, stability, hydrostatic testing and other verification requirements.
KeyWords: U-tube heat exchanger；craft; frame; intensity; finite element analysis
目录
1课题概述 1
1.1 课题背景 1
1.2 U形管式换热器的设计 1
1.2.1 结构设计 1
1.2.2 材料选择 2
1.3 有限元分析 2
2换热器的结构初选 3
2.1 设计条件 3
2.2 换热器材料选择 3
2.3 换热器的主要组成部件 4
2.3.1 壳体 4
2.3.2 前端管箱 4
2.3.3 后端结构 4
2.4 U型管换热器的形式与参数选择 4
2.4.1 公称直径 4
2.4.2 公称压力 5
3换热器结构设计 5
3.1 最小壁厚确定 5
3.2 管箱壳体设计 5
3.2.1 计算条件 5
3.2.2 厚度及重量计算 6
3.2.3 管程压力试验 6
3.2.4 压力及应力计算 7
3.3 壳体圆筒设计 7
3.3.1 计算条件 7
3.3.2 厚度及重量计算 7
3.3.3 壳程水压实验 8
3.3.4 压力及应力计算 8
3.4 封头设计 9
3.4.1 厚度计算及质量 9
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