Question regarding SW6 calculation issues
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This post was last edited by Lengnuan Life on 2022-9-8 at 08:56. I am dealing with a fixed-plate heat exchanger, with a pressure of 0.6 MPa; its structure is as shown in the diagram. When using SW6 software to calculate the strength, I’m not sure how to enter certain values related to the tube sheet and its flanges. As it’s a single-pass system (with both steam and water flowing through it), there are no partition plates, so I don’t know how to fill in the relevant values – entering zero doesn’t work either. Additionally, the calculation results do not include any information related to the tube sheet. For the flange section, since these two values were not entered (unknown), the resulting thickness was found to be unsatisfactory. I’d like to ask everyone: is it a software version issue, or what else could be the cause?
I took a look, but I don’t quite understand it. I can calculate it now, but the thickness of the tube sheet and flange plates is very large – 50 and 70 mm respectively. Moreover, standard pressure vessel flanges won’t work; this pressure level is not suitable for that type of medium. It’s not clear either what exactly the problem is.
Send me your original SW6 calculation file so I can see what the problem is
If the design involves high pressure and temperature, narrow-flange connections will be required, and the calculated thickness may end up being quite substantial
It’s not a problem here; take a look at what the message says
Aren’t the tube sheet thicknesses of 50 and 60 the normal values?
Well, they calculated that the flange size is 34, while I calculated that it should be 70; the difference is quite large. The thickness of the tube sheet also differs significantly, as do the bolts.
Others calculated it as 30 and 34
The calculation process has been sent; please take a look