宁夏大学新华学院本科毕业论文(设计)撰写要求必威体育精装版版(标准)2.doc

MDEA贫液再沸器设计 摘要：换热器是化工、炼油工业中普遍应用的典型的工艺设备。因此设计和选择适用、高效的换热器对降低设备的造价和操作费用具有十分重要的作用。釜式再沸器就是换热器分类中很重要的一种。 本文主要包含了对釜式再沸器及换热器的设计背景及概述和再沸器的强度校核、结构计算以及零件设计这四部分。背景及概述部分主要包括换热器的定义；强度校核、结构计算部分主要是根据已经选定的换热器型式进行设备内各零部件的设计，包括：材料的选择、具体尺寸确定、确定具体位置、管板厚度的计算、开孔补强计算等；零件设计部分则重点强调了法兰、垫片、拉杆、鞍式支座等的选取。关于釜式再沸器设计的各个环节，设计说明书中都有详细的说明。同时为以后计算机绘图时能更加方便。 关键词：再沸器；换热管；结构设计；管板  MDEA barren solution design of re-boiler Abstract: the heat exchanger is an important technics device in chemical combination and oil refining industry. So it is very important to design and choose the appropriate and efficient exchanging-heat machine for decreasing the cost of manufacturing and operation. Kettle re-boiler is one of the most important classifications of the heat exchanger. There are 4 parts in my thesis which includes the background of the kettle re-boiler and the heat exchanger, the proofread of the intensity, structure calculations and part design. The background includes the major concepts. the proofread of the intensity and structure calculations are just on the selected type of heat exchanger to design the heat exchanger’s components and parts. This part of design mainly include：the choice of materials，identify specific size, identify specific location, the thickness calculation of tube sheet, the opening reinforcement calculation etc. Parts design includes the choice and verification of the flanges, the gaskets, the rods and saddle supports.The each aspects of the kettle re-boiler has detailed instructions in the design manual. At the same time it can provide convenient for computer graphics. Key words: kettle re-boiler；heat transfer tube；structure design；the tube plate 目录 1.前言 1 1.1换热器背景介绍 1 1.2国内外综述及发展方向 2 1.3设计目的和意义 3 2 再沸器结构设计 4 2.1设计任务与设计条件 4 2.2再沸器的选型 4 2.3再沸器壳体结构设计 5 2.4再沸器壳体结构设计 5 2.5壳体小端直径计算 7 2.6再沸器壳体结构设计 8 3再沸器壳体强度设计与校核 10 3.1大端厚度计算与水压试验校核 10 3.2小端厚度计算与水压试验校核 12 3.3锥壳厚度计算与水压试验校核 13 3.4大端封头厚度计算 16 3.5管箱设计 17 3.5.1管箱厚度与水压试验校核 17 3.5.2管箱封头厚度 18 3.5.3管箱长度 19 3.5.4过渡圆筒长度 20 4主要零部件结构设计及计算