A0装配图
F130U型管式换热器设计
摘要
本课题为F130U型管式换热器，该换热器主体结构是由壳体、管束、管板、纵向隔板、折流板和封头等部分组成，另外还有支座等其它零件。那么，本课题设计的换热器呢、是双管程，管体的两端都是固定在同一个管板上面。一个这种结构的一个优点是，所述壳体和所述管束不在一起，并且该束可自由调整和扩展。有管壁和壳壁，它们之间不会产生热应力，这就使得换热器热补偿性好。
设计采用双管程和双壳程的好处有，气体在其中流动时间长，加上双壳程、传热性进一步得到提高。由于没有浮头，结构相对简单，造价就比较便宜。但是其中由于双壳程的缘故，拆卸清洗会稍微复杂一些，虽然管束等可以直接抽取出来，使得管子外部易于清洗，但因为管子的结构是U型，管子里面是不容易清洗的，并且弯曲部分的曲率是不相同的，换换管的长度不一致，从而导致材料分布相比固定管板式换热器会不均匀。换热管因为渗漏堵死后便会导致传热面积损失的问题。使用时管程温度为390℃、承受压力为1.75MPa ，壳程受热为85℃、压力为1.65MPa。换热面积为130m2 。
主要过程有主体结构设计，材料选择，零部件结构设计，强度计算与校核，加工工艺等等。另外需要注意的地方就是安全防腐，装配图的绘制等。
关键词： U型管式换热器；双管程；强度计算；零件设计
ABSTRACT
This subject is a F130U tubular heat exchanger. The heat exchanger is mainly composed of a casing, a tube bundle, a tube sheet, a longitudinal partition, a baffle and a head, and other parts such as a support. Then, the heat exchanger designed by this subject is a double-shell double-tube process, and both ends of the pipe body are fixed on the same pipe plate. One of the advantages of such a structure is that the casing and the tube are not in one piece, and the tube bundle can be freely adjusted and expanded. There is no thermal stress between the pipe wall and the casing wall, which makes it thermally compensated.
The benefits of this design of the double tube and double shell are that the gas flows in it for a long time, and the double shell and heat transfer are further improved. Since there is no floating head, the structure is relatively simple and the cost is relatively cheap. However, due to the double shell process, the disassembly and cleaning will be slightly more complicated. Although the tube bundle and the like can be directly extracted, the outside of the tube is easy to clean, but because the structure of the tube is U-shaped, the inside is not easy to clean, and the curvature of the bent portion is not Similarly, the length of the heat exchange tubes is inconsistent, resulting in a material distribution that is less uniform than the fixed tube sheet heat exchanger. The heat exchange tube will cause a loss of heat transfer area after the leak is blocked. When used, the tube temperature is 390°C, the withstand pressure is 1.75 MPa, the shell side heat is 85°C, and the pressure is 1.65 MPa. The heat exchange area is 130m2.The main processes are main structure design, material selection, component structure design, strength calculation and verification, processing technology and so on. Another place to pay attention to is safety anti-corrosion, drawing of assembly drawings, etc.
Key words : f130u tubular heat exchanger; double tube side; density compute ;component design
目录
1绪论1
2结构设计3
2.1材料选择及零部件结构设计3
2.2主体结构设计6
3强度计算与校核7
3.1管箱筒体计算8
3.2壳体厚度8
3.3管板计算9
3.4法兰强度计算与校核13
3.5开孔补强计算15
3.6鞍座强度校核16
4加工工艺17
4.1换热器的制造17
4.2安装换热器17
5换热器的安全与仿腐19
5.1换热器的安全检验19
5.2换热器的仿腐蚀19
致谢20
参考文献21
设计参数
设计所包含文件
字数统计
A4分程垫片
A4拉杆
A2左侧管箱
A2左端管板
A3右端管箱
A3折流板
A3右侧管板
