电脱盐换热器设计+CAD图纸+文献综述
毕业论文关键字：电脱盐；换热器；固定管板式换热器；换热器设计
The design of electric desalting heat exchanger
Abstract: Heat exchanger is the transfer of a portion of the thermal fluid heat to the cold fluid equipment，in today's manufacturing process is widely used，Most widely used especially in the oil industry，Heat exchanger is used most widely in the oil industry，but crude oil contains many impurities and harmful medium，In order to remove this，the desalination technology is now used. The principle of electric desalting of crude oil is in the electric field，temperature，demulsifier，water injection，mixed to a combination of factors，such as intensity，damage state of crude oil emulsion，to realize the process of oil-water separation .The subject has designed a kind of electric desalting heat exchanger，in the design process. Firstly，the structure design and the use of the electric desalination heat exchanger are analyzed by checking many documents，and the type of heat exchanger is chosen from the aspects of heat transfer efficiency，structure and economy according to the actual working conditions，and combined with the effect of electric desalting technology of heat exchanger design structure design. Mainly according to the heat exchanger type has been selected for each component in the design of equipment (e.g., take-over, baffle plate and spacer pipe, tube, etc.)，including: the choice of materials，the determination of the specific size，determine the specific location，the thickness of the tube plate，opening reinforcement calculation，etc.
Key Words: Electric desalting；fixed tube plate heat exchanger；heat exchanger design.
目 录
1．绪论 1
1.1课题简介 1
1.2换热器发展 1
1.3电脱盐技术发展 2
1.4研究目的与意义 3
2. 设计要求 3
2.1设计任务 3
2.2总体结构设计 3
2.3研究方法 4
3. 换热器的热力计算 5
3.1确定流体的定性温度 6
3.2 对流传热系数 7
3.2.1 管程对流传热系数. 7
3.2.2 壳程对流传热系数. 7
3.3 确定污垢热阻 8
3.4 总传热系数 8
4. 换热器的结构计算 9
4.1设计条件确定 9
4.1.1设计温度 11
4.1.2 计算压力 11
4.1.3 焊缝系数 11
4.2 换热器壳体设计及校核 11
4.2.1 设计参数 12
4.2.2 厚度计算 12
4.2.2强度校核 12
4.3 换热器管箱设计及校核 13