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毕业论文-管壳式换热器的优化设计，共23页，11264字
摘 要
管壳式换热器是当今应用最广泛的换热设备,它具有高的可靠性和简单易用性。特别是在较高参数的工况条件下, 管壳式更显示了其独有的长处，目前在提高该类换热器性能所开展的研究主要是对换热器的各种性能参数进行优化设计。
本文主要研究内容是对换热器进行优化设计，先第一章整体介绍一下目前发展现状提出问题，本文第二章从换热器的失效现象入手进行问题分析，主要分析了管束的失效形式之腐蚀，管束失效形式之传热能力下降，管束失效形式之管束泄漏，管束与管板的连接失效，管板与壳体连接处的失效，换热管与折流板接触面处振动引起的失效，封头垫片的内漏失效，管壳式换热器的腐蚀失效等失效形式，先分析失效原因再找出解决方案进行优化设计！第三章主要对换热器的震动失效进行分析找出原因并进行分析设计！最后做一下总结展望未来发展趋势！

【关键词】 管壳式换热器; 优化设计；换热器震动；压力降

Abstract

Shell and tube heat exchanger is today the most widely used heat transfer equipment, it has high reliability and easy to use. Especially in higher parameter conditions, shell and tube type more shows its unique strengths, present in the enhancement of the performance of the heat exchanger are studied mainly on the heat exchanger performance parameters were optimized.
Main content of this paper is on the heat exchanger design optimization, the first chapter introduces the current development of the status quo, the second chapter of this article from the heat exchanger failure phenomenon proceed with analysis of problems, the main failure form analysis of bundle corrosion, tube failure form of transfer ability to drop, the failure forms of tube bundle tube bundle leakage, tube bundle and pipe failure, pipe plate and shell connection failure, heat transfer tube and the baffle at the contact surface vibration caused by failure, head gasket leakage failure, shell and tube type heat exchanger corrosion failure failure analysis failure causes, to find solutions to optimization design! The third chapter on the heat exchanger vibration failure analysis to find the reason and analysis and design! Finally, a summary and the prospect of future development trend!

【Key words】 tube shell type heat exchanger; optimization design; heat shock; pressure drop

目 录
第1章 绪论 1
1.1换热器技术的发展概述 1
1.2换热器的分类及其特点 1
1.2.1、换热器按传热原理分类 1
1.2.2、换热器按用途分类 2
1.2.3、按换热器的结构分类 2
1.3国内外研究现状 2
1.4本课题的研究内容及方法 4
第2章 整体失效及分析及优化设计内容 6
2.1 管束失效 6
2.1.1 管束的失效形式之腐蚀 6
2.1.2 管束失效形式之传热能力下降 7
2.1.3 管束失效形式之管束泄漏 7
2.2 管束与管板的连接失效 8
2.3封头垫片的内漏失效 8
2.4管壳式换热器的腐蚀失效 8
第3章对换热器震动的优化设计 10
3.1造成振动的振动形式及原因 10
3.1.1 流体的弹性振动 10
3.1.2 湍流抖振(紊流抖振) 10
3.1.3声振动 10
3.2对振动进行优化设计 11
3.2.1声振动产生的原因 11
3.2. 2声振动引起的破坏 12
3.2.3振动设计方法 12
第四章总结 15
参考文献 16
致 谢 17