总装图A0
F320浮头式换热器设计
摘要
本次设计的课题为F320浮头式换热器，组成部分为：浮头、管体、壳体、管束等。此次设计的换热器设计为双壳程双管程浮头式换热器。其中，管程的介质为烟道气，设计压力为1.35MPa，设计温度为480℃。壳程的介质为水，设计压力为1.25MPa，设计温度为95℃。腐蚀余量定义为1.00mm。换热面积为320m2 。通过以上参数可制定此次设计的具体步骤及内容。
浮头式换热器是管壳式换热器系列中的一种，它的特点是两端管板只有一端与外壳固定死，另一端可相对壳体滑移，称为浮头。浮头式换热器由于管束的膨胀不受壳体的约束，因此不会因管束之间的差胀而产生温差热应力，另外浮头式换热器的优点还在于拆卸方便，易清洗。在化工工业中应用非常广泛。此次设计的主要内容如下所述。首先，进行材料的选择以及各个结构的设计。然后对有些部件结构通过计算进行强度校核，之后进行加工工艺的设计。再之后对换热器的防腐方面做出研究，最后把所有的图纸由AutoCAD绘出。
关键词：浮头式换热器；壳体；管程;浮头；管束
ABSTRACT
The subject of this design is F320 floating head heat exchanger, which consists of floating head, tube body, shell, tube bundle, etc. The heat exchanger designed is a double shell double tube floating head heat exchanger. Among them, the medium of the pipe is flue gas, the design pressure is 1.35MPa, and the design temperature is 480 C. The medium of the shell side is water, the design pressure is 1.25MPa, and the design temperature is 95 C. The corrosion allowance is defined as 1.00mm. The heat transfer area is 320m2 . Through the above parameters, the specific steps and contents of the design can be worked out.
The float head type heat exchanger is one of the tube and shell heat exchanger series. Its characteristic is that the end of the tube is fixed only one end and the outer shell, the other end can slip relative to the shell, which is called the float head. As the expansion of the tube bundle is not restricted by the shell of the tube, the temperature difference and thermal stress will not be produced by the differential expansion between the tube bundles, and the advantages of the float type heat exchanger are also easy to disassemble and easy to clean. It is widely used in the chemical industry. The main contents of this design are as follows. First, the selection of materials and the design of various structures. Then the strength of some parts is checked through calculation, and then the processing technology is designed. After that, the corrosion prevention of heat exchanger is studied. Finally, all the drawings are drawn by AutoCAD.
Key words Float type heat exchanger；Housing；Course；Floating head；Tube bundle
目录
1绪论1
1.1浮头式换热器介绍1
1.2浮头式换热器原理1
1.3浮头式换热器优缺点1
1.4换热器的应用1
2结构设计3
2.1材料选择3
2.2主体结构设计3
2.3零部件结构设计6
3强度计算与校核12
3.1管箱筒体计算12
3.2管箱封头计算13
3.3壳程圆筒计算14
3.4管箱法兰计算15
3.5管箱螺栓间距校核16
3.6筒体法兰计算17
3.7筒体螺栓间距校核18
3.8总体强度校核方法19
4加工工艺20
4.1总体制造工艺20
4.2封头的成型20
4.3筒节的弯卷成型20
4.4固定管板制造21
4.5浮动管板制造21
4.6法兰制造21
4.7钩圈制造22
4.8管箱制造23
4.9筒体制造24
4.10补强圈制造25
4.11壳体制造26
4.12安装与拆卸27
5换热器的安全防腐29
5.1换热器的腐蚀29
5.2换热管腐蚀29
5.3管子与管板、折流板连接处的腐蚀29
5.4壳体腐蚀29
5.5换热器的防腐29
总结31
参考文献32
致谢33
浮动端法兰A4
浮动管板A2
固定端法兰A4
管束A1
管箱A1
夹持管板A2
壳体A1
拉杆A4
折流板A4
字数统计
任务参数要求
字数统计
设计目录
摘要部分
主体结构设计
强度计算与校核
计算部分预览
