U形管式换热器设计.doc

精选文档 欢迎下载 摘 要 本文介绍了U形管换热器的整体结构设计计算。U形管换热器仅有一个管板，管子两端均固定于同一管板上，管子可以自由伸缩，无热应力，热补偿性能好；管程采用双管程，流程较长，流速较高，传热性能较好，承压能力强，管束可从壳体内抽出，便于检修和清洗，且结构简单，造价便宜。U形管式换热器的主要结构包括管箱、筒体、封头、换热管、接管、折流板、防冲板和导流筒、防短路结构、支座及管壳程的其他附件等。 本次设计为二类压力容器，设计温度和设计压力都较高，因而设计要求高。换热器采用双管程，不锈钢换热管制造。设计中主要进行了换热器的结构设计，强度设计以及零部件的选型和工艺设计。 关键词：U形管换热器；结构；强度；设计计算 Abstract This paper introduces the U-tube heat exchanger design and calculation. U-tube heat exchanger has only one tube sheet, tubes are fixed at both ends of boards in the same tube, and tubes could telescopic freely, non-thermal stress, thermal performance and compensation; use of double-tube process, the process is longer, higher speed, better heat transfer performance, pressure capacity, and control can be extracted from the shell with easy maintenance and cleaning, and simple structure cost less. The main structure of U-tube heat exchanger, includes Equipment control, shell, head, exchanger tubes, nozzles, baffled, impingement baffle, guide shell, anti-short-circuit structure, support and other shell-tube accessories. This time I designed a second category pressure vessel, which has high design temperature and high design pressure. Thus the design demands are strict. It has dual heat exchanger tube, stainless steel heat exchanger manufacturers. I mainly carried out the design of heat exchanger structural design, strength of design and parts selection and process design. KEYWOEDS: U-tube heat exchanger；frame；intensity；, design and calculation 目录 TOC \o 1-3 \h \u HYPERLINK \l _Toc26688 摘 要 PAGEREF _Toc26688 I HYPERLINK \l _Toc11200 ABSTRACT PAGEREF _Toc11200 II HYPERLINK \l _Toc2040 第1章 绪论 PAGEREF _Toc2040 1 HYPERLINK \l _Toc17043 管壳式换热器。 PAGEREF _Toc17043 1 HYPERLINK \l _Toc6830 1.1 概述 PAGEREF _Toc6830 1 HYPERLINK \l _Toc22924 1.2 管程式换热器结构 PAGEREF _Toc22924 3 HYPERLINK \l _Toc27285 1.2.1 分类及特点 PAGEREF _Toc27285 4 HYPERLINK \l _Toc9473 1.3 流道选择 PAGEREF _Toc9473 7 HYPERLINK \l _Toc27094 1.4 材料选择 PAGEREF _Toc27094 7 HYPERLIN