浮头式对甲苯冷却器的设计毕业设计.docVIP

20xx 届 毕 业 设 计（论文） 学生姓名： 学 号： 所在学院： 专 业： 设计(论文)题目: 指导教师： 2012 年 6 月 conditions. Shell and tube heat exchanger has a solid structure, flexible operation, high degree of reliability, the use of a wide range, so is still widely used in engineering. HTFS software process design of heat exchangers has become commonplace, but in order to make the design of heat exchangers can better meet the needs of a variety of conditions, there are still many aspects need to be fully considered in the design. This article is the design of the floating head p-xylene cooler, and its main contents and conclusions are as follows: Design a floating head p-xylene cooler ,determine the selection of shell and tube heat exchanger type of heat exchanger tube, the fluid toward and direction to determine the cooling medium. Finally, giving related reasons. Have a certain impact on the p-xylene nature of the process design, process design results may have a direct impact on the thermodynamic calculation and mapping of late, so how to make a choice, you need a certain amount of GB and literature, will be a difficulty. For inquiries on the physical parameters of the p-xylene, the corresponding physical parameters of p-xylene in the state ok Practical Thermal Physical Properties Of Manual Queries. Deal with the basic data, then the cooler design of the structure, an initial heat transfer coefficient, and select the appropriate pipe size, count the heat transfer area, cooler tube side and shell side of the structure size, including the flow tube size, pipe length, diameter, to take over. The size of the shell determined by the arrangement of the tubes, the layout of the pipe as far as possible should be uniform and reasonable so as not to cause the stress caused by the uneven heating. Followed by a cooler thermal calculation. According to the shell and tube heat transfer coefficient