工程热力学课程设计--管式换热器

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1、武汉理工大学《工程热力学与传热学》课程设计说明书目录1.绪论·································································21.1管壳式换热器概述···············································21.2管壳式换热器的结构及性能特点···································21.3换热器的研究内容及意义·········································32.计算设计说明书

2、·······················································52.1设计准备·······················································52.1.1设计依据··················································52.1.2设计原理··················································52.1.3设计步骤·························

3、·························62.2初步确定设备结构21武汉理工大学《工程热力学与传热学》课程设计说明书···············································62.2.1定性温度··················································62.2.2物性参数··················································72.2.3初选管材及管内流速····························

4、············72.2.4对数平均温差··············································72.2.5确定所选管材··············································92.3校核换热系数···················································102.3.1管程换热系数··············································102.3.2板管计算··············

5、····································102.3.3壳程传热系数··············································112.3.4污垢热阻和管壁热阻········································1221武汉理工大学《工程热力学与传热学》课程设计说明书2.3.5计算传热系数···············································122.4折流板计算··························

6、···························122.5阻力计算·······················································142.5.1管程流体阻力···············································142.5.2壳程阻力···················································152.6参数总表···················································

7、····173.设计小结·····························································194.参考文献·····························································20摘要在工业生产过程中，进行着各种不同的热交换过程，其主要作用是使热量由温度较高的流体向温度较低的流体传递，使流体温度达到工艺的指标，以满足生产过程的需要。换热器简单说是具有不同温度的两种或两种以上流体之间传递热量的设备。此外，换热设备也是回收余热，废热，特别

8、是低品位热能的有效装置。21武汉理工大学《工程热力学与传热学》课程设计说明书换热器按操作过程可以将其分为间壁式、混合式及回热式三大类，本次设计主要是间壁式，在这类换热器中，冷、热