The necessity of the plates using plate and the flexible pipe of thin tube

Design of heat exchanger, tube plate in the form of a thick tube sheet, plate and flexible tube plate of three kinds of thin tube. From the actual work often feel tube plate thickness is thick, so the equipment processing trouble, material source of difficulties, especially the thickness more than 60mm. Therefore, in addition to not take too rich a large quantity of standard in the design work outside, more effective promotion of the use of thin tube plate and the flexible tube plate (especially when the pipe wall and the shell wall of the larger temperature difference). Therefore the author thinks:
1 in a shell and tube heat exchanger design should minimize the use of thin tube plate structure in the technology is mature, it is reasonable in economy. And to facilitate convenient material source and processing. Yizheng Chemical Industrial Corporation by the German DAVI company to introduce one hundred sets of shell and tube heat exchanger, are basically using the thin tube sheet structure, good operation.
2 when the pipe wall and the shell wall body temperature more than 10 DEG C, should try to adopt the flexible thin tube plate structure, which are advanced in technology and economy.
The 3 provinces in the promotion and use of thin tube plate and the flexible tube plate than the province behind. This is mainly the design department of the lack of knowledge; manufacturing and installation departments according to the weight of charges related equipment. At the beginning of 1986, Xiamen chemical machinery factory is a synthetic ammonia plant trial production of Dgo00, P, IMPaPSo.SMPa, F50m2 gas steam conversion of thin tube plate heat exchanger, successfully proved that it is economical and safe.