毕业论文（设计）-再沸器的设计.docx

毕业论文（设计）-再沸器的设计.docx摘要
精帼的本质是利用不同物质的挥发度不同，通过多次汽化、多次冷凝的精帼 过程而达到物质分离的单元操作过程，而多次汽化所需的能量即通过再沸器提供 的，这就是再沸器的作用。
甲醇釜液再沸器是一种换热器，通常采用热虹吸式换热器，也是一种列管式 换热器，在生产企业中占有较重要的地位，它直接影响产品的质量和产量。
本设计主要是对其工艺、结构等的设计，通过选用换热设备的型号和对国标 的查找，设计出经济实用的化工设备。再沸器的结构图使用AutoCAD二维绘图 软件绘制，清楚地表达出结构尺寸，便于改进和生产。
主要介绍了再沸器的设计工作以及它在生产过程中处于的地位和作用，它是 精帼塔不可或缺的一部分，它提供给精帼塔多次汽化所需的能量，它与冷凝器等 都是换热设备。
关键词:
再沸器汽化 AutoCAD列管式换热器甲醇
ABSTRACT
Distillation is the physical separation unit operation which is achieved by the repeated distillation process of several vaporization and condensation, since the volatility of different materials vary from each other. And the energy required for vaporization is provided by the reboiler This is the role of the reboiler.
Methyl reboiler is a heat exchanger, it is also a tube-type heat exchanger. In the manufacturer industry it plays a very important role, for it has direct impact on the product quality and yield .
This design is mainly for its technology, structure design. By selecting the model and the national standards of the heat transfer exchanger, we can come up with the economic and practical design of chemical equipment. Reboiler structure diagram is drawn by the two-dimensional drawing software drawing we can clearly express the structure size and it is convenient for us for further improvement and production.
Now we have completed the design of the reboiler and its role in the production process. It is an integral part of the distillation column, which provides the energy needed to vaporize several distillation columns. Along with condensers they are both the heat exchangers.
Key words：
Reboiler ； Vaporization ； AutoCAD ； distillation column heat exchanger ； methyl
目 录
前言 3
第一章再沸器基本参数 5
、设计任务和设计条件 5
2、再沸器类型的选择 5
3、流程的安排 6
4、再沸器的热流量计算 6
5、流体的有效平均温斧 6
6、传热面积的估算 7
7、再沸器基本参数的初步确定 7
1换热器型号 7
8
7. 3 拉杆 10
11
第二章再沸器机械强度设计 12
1壳体壁厚计算 12
2管箱壁厚计算 13
3封头壁厚计算 14
4、管箱结构 15
4. 1管箱结构尺寸确定 15
4. 2 管箱法兰 16
3 垫片 17
、固定管板计算 18
6、壳体、管子与管板连接结构设计 22