1、 学生毕业设计（论文） 题 目 管壳式换热器的设计 作 者 院 (系) 化学与化工学院 专 业 化学工程与工艺 指导教师 答辩日期 2011年5月21日 摘 要 换热设备是化工、炼油、动力、能源、冶金、食品、机械、建筑工业中普遍应用的 典型设备。一般换热设备在化工、炼油装置中的建设费用比例可达 20%-50%。因此，无 论从能源的利用，还是从工厂的投资来看，合理地选择和设计换热器，都具有重要的意 义。在各种换热器中，由于管壳式换热器具有单位体积内能够提供较大的传热面积、传 热效果好、适应性强、操作弹性大、易制造、成本低、易于检修和清洗等优点，因此应 用最为广泛。本次设计的目的是通过对设备的设计
2、初步掌握其设计的基本方法与程序。 本次设计的设备是 U 型管式换热器，它属于管壳式换热器的一种。管壳式换热器的设计 和分析包括热力设计、流动设计、结构设计以及强度设计，以热力设计最为重要。通过 本次设计知道了管壳式换热器的设计内容主要包括根据换热任务和有关要求确定设计 方案，初步确定换热器的结构和尺寸，核算换热器的传热面积和流体阻力，确定换热器 的工艺结构。 关键词：U 型管式换热器、工艺设计 论文类型：工程设计 ABSTRACT Heat transmission equipment is a typical equipment ，which is widely used in chemic
3、al industry, oil refining, power, energy, metallurgy, food, machinery and building industry . The construction cost ratio of general heat transmission equipment in the chemical industry and oil refining installations can reach 20% to 50%.Therefore, no matter from energy use, or from the factory inve
4、stment perspective, a reasonable choice and design of heat exchanger have important significance. In all kinds of heat exchanger, as tubular heat exchanger can provide large heat exchanger area per unit volume, heat transfer effect is good, adaptability is strong, elasticity of operation is big, eas
5、y to manufacture, its cost is low, easy to maintenance and clean etc, so it is most widely used. The aim of this design is based on the design of equipment to master its equipment basic design method and procedure. The design of the equipment is u-shaped tubular heat exchanger. It belongs to the tub
6、ular heat exchanger. The design and analysis of Tubular heat exchanger consists of thermal design, flow design, structural design and strength design. Thermal design is the most important. Through this design we know design content of tube exchanger mainly consists of determining design program according to heat task and relevant requirements, determining the structure and size of heat exchanger, accounting heat transfer area and fluid resistance of the heat exchanger, determining process
