稀氨水吸收器的设计+CAD图纸+答辩PPT
毕业论文关键词：换热器；固定管板；工艺设计；结构设计；强度计算
Design of Dilute Ammonia Heat Exchanger
Abstract：The heat exchanger is the techniques equipment widely used in many industrial departments. In the design it uses the fixed tube plate type of the heat interchanger structure，because of the operating condition and the medium characteristic. This equipment is suitable when the temperature difference is not big，the shell regulation fluid is clean，or the fouling，disassembling or cleaning for the heat exchanger is not easy. In the process of the design，the technological design，the structural design(material shaping) and the strength calculation must according to the GB151-1999"Steel System Shell Type Heat interchanger"，finally it completes the seminar. In the strength calculation，it must be computed for the require of the part of inflates according to the difference concrete value ot the temperature.In the design the way of each pipe arrangement uses the equilateral triangle arrangement，this method may arrange many pipes in the same tube plate area，also the tube outside surface heat transfer coefficient is big.
KeyWords: heat exchanger；fixed tube plate；technological design; structural design； strength calculation
目 录
1 绪论 1
1.1换热器的应用及其发展 1
1.1.1 换热器的应用 1
1.1.2 换热器的发展趋势 1
1.2 换热器的分类及其特点 2
1.3 列管式换热器的设计 2
2 换热器热力计算 4
2.1 物性参数计算 4
2.2 热力计算 6
2.2.1确定物性数据 6
2.2.2热量衡算 6
2.2.3 流动空间及流速的测定 7
2.2.4 计算总传热系数 7
2.2.5换热器核算 10
2.3 阻力计算 12
3 换热器的结构设计 14
3.1 筒体设计 14
3.1.1筒体材料的选取 14
3.1.2筒体壁厚的计算 14
3.1.3水压试验 15
3.1.4 结构形式 15
3.2 管箱设计 15
3.2.1管箱材料 16
3.2.2管箱尺寸 16
3.2.3管箱壁厚计算 16
3.2.4水压试验 17
3.3 管箱法兰 17
3.3.1材料的选取 17
3.3.2 结构尺寸 17
3.3.3 结构型式 17
3.4 接管 18
3.4.1材料的选取 18
3.4.2结构尺寸 18
3.4.3 结构型式 24
3.5 接管法兰 24
3.5.1 材料的选取 24
3.5.2 结构尺寸 24
3.5.3 结构型式 25
3.6 垫片 25
3.7 管板 26
3.7.1材料的选取 25
3.7.2结构尺寸 26
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