毕业设计（论文）-甲醇精馏再沸器设计.docVIP

北方民族大学 学士学位论文 论文题目: 院(部)名 称: 学 生 姓 名: 专 业: 学 号: 指导教师姓名: 论文提交时间: 论文答辩时间: 学位授予时间: 北方民族大学教务处制 摘 要 精馏的本质是利用不同物质的挥发度不，通过多次汽化、多次冷凝的精馏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。 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。 再沸器的设计工作以及在生产过程中处于的地位和作用，它是精馏塔不可或缺的一部分，它提供给精馏塔多次汽化所需的能量，它与冷凝器等都是换热设备。 再沸器 汽化 列管式换热器 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 AutoCAD.So 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