丙酮进料加热器结构设计+文献综述
关键词: 换热器 压力容器 固定管板式 Title Stractuarl Design of Fixed Tube Sheet Heat Exchanger
Abstract
Heat exchanger is part of the thermal fluid heat transfer to a cooling
fluid,to achieve chemical processes essential heat exchange and
transmission equipment.
In this paper,fixed tube sheet heat exchanger as the research
object,the development of the heat exchanger, background, classification
and use are described.In this paper, Saturated vapor and acetone as the
medium, the second chapter as the calculation of the heat exchanger.Heat
exchanger external design, including its barrel design, shell cover
design, tank and bearing design. The internal design of heat exchanger,
including the heat exchanger tube size, fixed tube sheet thickness
calculation, and also conducted a pressure test.
In addition to the above, the heat exchanger of the research should
also include it in the pipe flange, opening, took over at the parts, as
well as its accessories and more.
KEYWORDS: heat exchanger ；pressure vessel；fixed tube sheet
目录
1 化工换热器简介 . 1
1.1 换热器概述 . 1
1.2 换热器的分类 1
1.3 列管式换热器 2
2 列管换热器工艺设计 .. 6
2.1 设计任务及设计条件 6
2.2 确定设计方案 6
2.2.1 选择换热器的类型 .. 6
2.2.2 流程安排 6
2.3 确定物性数据 6
2.4 估算传热面积 7
2.5 工艺结构尺寸 8
2.5.1 管径和管内流速 8
2.5.2 管程数和传热管数 .. 8
2.5.3 平均传热温差校正及壳程数 . 8
2.5.4 传热管排列方法 8
2.5.5 壳体内径 9
2.5.6 折流板 . 9
2.5.7 接管.. 9
2.6 换热器核算 .. 10
2.6.1 热流量核算 10
2.6.2 管内表面传热系数 11
2.6.3 污垢热阻和管壁热阻 .. 11
2.6.4 传热系数 .. 11
2.6.5 传热面积裕度 .. 11
2.6.6 换热器内流体的流动阻力 11
2.6.7 壳程阻力 . 12
2.6.8 换热器主要结构尺寸和计算结果 13
3 列管换热器机械设计 14
3.1 筒体.. 14
3.1.1 筒体内径 . 14
3.1.2 筒体壁厚 . 14
3.1.3 水压校核 . 14
3.1.4 壳体质量 . 14