How to select the calculation pressure of the shell wall thickness calculation formula in shell and tube heat exchangers?
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This post was last edited by WallaceLee on 2020-8-4 13:52 This is an example of mechanical design of a shell and tube heat exchanger from the Dalian University of Technology edition of "Mechanical Fundamentals of Chemical Equipment". Calculate the shell wall thickness of a shell and tube heat exchanger. It is known that the working pressure of the shell side fluid is 0.68mpa, as shown in the figure.: However, when calculating the shell wall thickness below, the calculated pressure Pc is taken to be 1.0mpa, as shown in the figure.: I would like to ask why the calculated pressure here is not 0.68mpa but 1.0mpa? Ask God for answers!
Youyan* Have any chemical engineering classmates who have read the Dalian University of Technology version of "Basics of Chemical Equipment and Machinery" shared their thoughts? :lol
It seems a bit awkward for you to post. If you have time, we can all come to the website to communicate. Thank you.
Can anyone give me an answer?
Is there a great god? Please answer! !
Please ask God to answer! ! ! !
No need for margin? It is normal to enlarge 0.68 to 1!