F280U型管式换热器设计含8张CAD图带开题报告+说明书

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F280U型管式换热器设计
摘要
本课题设计是F280U管式柴油冷却器，组成部分分别是：管体、壳体以及管子等零件。它的组成结构非常紧密，排管很多，并且一样的直径状况下制作非常简易。本课题设计使用双壳程双管程。在使用时管程压力是1.35MPa，温度能够达到220℃，将油当做介质使用。而使用时壳程压力是1.15MPa,温度是110℃，也是用油当做介质。
设计冷却器时需要包含以下几点：管子的尺寸以及排列形式、圆筒、以及管板的原材料和厚度、防冲板等等。这个管子的使用原则是清洗方便和节约使用。管子以三角形的排列形式安装在管板上。原因是使用三角形排列使得管板的强度升高减少流体短路，以及尽可能多的排列更多的管子。设计时使用圆筒薄膜应力原则计算推导出壳体厚度计算公式。并且最小壁厚应该高于封头内径的0.14%，管板是设计中重要零件，在挑选材料时不光要检验力学性能，还要思考流体腐蚀性能的作用。需要在符合各种强度要求之下，降低管板的厚度。折流板的选择是圆缺型挡板，切去的弓形厚度普遍是外壳内径的15%到20%。
关键词：壳程；管程；冷却器；零部件
ABSTRACT
The design of this topic is the F280U tube type diesel cooler,which consists of tube, shell and tube. It has avery close construction, a lot of tubes, and the same diameter condition. It'svery easy to make. This project is designed to use double shell double pass. In use, the tube pressure is 1.35MPa, the temperature can reach 220 degrees, the use of oil as a medium. While the use of shell pressure is 1.15MPa, the temperature is 110 degrees, but also oil as a medium.
The design of the cooler involves the following the size and arrangement of the tube, the cylinder, the raw material and thickness of the tube plate, the thrust plate, and so on. The principle of using this pipe is convenient cleaning and economical use. The tube is mounted in a triangular arrangement on the tube plate. The reason is the use of triangular arrangement to increase the strength of the tube plate, reduce fluid short circuiting, and arrange as many pipes as possible. The calculation formula of the shell thickness is deduced by using the principle of cylinder membrane stress. And the minimumwall thickness should be higher than 0.14% of the head diameter, the tube plate is an important part of the design, in the selection of materials, not only to test the mechanical properties, but also to consider the role of fluid corrosion. It is required to meet the requirements ofvarious strength and to reduce the thickness of the tube sheet. Baffle selection is the moon type baffle, the shell is generally cut bow thickness diameter of 15% to 20%.
Keyword shell side; tube; cooler;pipe
目录
1.综述1
1.1.引言1
1.2.结构2
1.3.类型2
1.4.非金属材料冷却器3
1.4.1.流道的选择3
1.4.2.操作强化3
1.5.国内外研究概况3
2.工艺计算7
2.1.原始数据7
2.2.定性温度及物性参数7
2.3.传热量与油流量7
2.4.有效平均温差7
2.5.管程冷却系数8
2.6.结构的初步设计8
2.7.壳程冷却系数计算9
2.8.传热系数计算9
2.9.管壁温度计算10
3.结构设计10
3.1.冷却管设计10
3.2.布管方式的选择10
3.3.筒体内径的确定10
3.4.筒体壁厚的确定11
3.5.封头形式的确定11
4.管板尺寸的确定及强度计算13
4.1.筒的计算13
4.2.对于延长部分兼作法兰的管板的计算15
4.3.假定管板的厚度计算18
4.4. G2值的取得20
4.5.法兰厚度的计算20
4.6.法兰力矩的的危险组合21
4.7.筒体管箱耐压试验的应力校核计算27
5.U型管式冷却器的制造、检验、安装、使用和维修28
5.1.结构尺寸和加工28
5.1.1.圆筒28
5.1.2.管箱28
5.1.3.管板28
5.1.4.管孔加工28
5.1.5.冷却管29
5.2.安装、使用和维修29
5.2.1.换热器的清洗29
5.2.2.U型管式换热器的维护和检修29
结论30
致谢31
参考文献32

右侧管板

右侧管箱

折流板

左侧管箱

左端管板

分程垫片

拉杆

设计目录

所包含文件

图纸所包含文件

摘要部分

字数统计