SW6 fixed tube sheet heat exchanger flange calculation bug
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This post was last edited by Michaelhtcd on 2020-7-25 16:26. As shown in the picture, a fixed tube plate heat exchanger with a diameter of 450 has a tube box flange NB/T47023 FM450-6.4. When entering data in SW6, the standard flange is selected. However, it always automatically becomes a reverse flange during calculation, and the calculation always fails. There is a problem with the shear plane height.
After some research, it turns out that it is indeed the case. The author can contact the Chemical Equipment Center Station to report this issue.
I don’t know if the pressure difference between the tube and shell side is too large, which makes the fixed tube plate structure unreasonable.
There is a problem with your calculation data package. As long as you turn on the hole enhancement option, the calculation software will crash. Could it be a virus?
This is version 3.1. I don’t know if the device center station is still in charge of fixing bugs.
The conditions of this equipment are indeed very strange. The heat exchange area is 10 square meters, the diameter is 450, and the heat exchange tubes are 19* 2.5 * 3500, the wiring is too sparse ； But to calculate the pipe box flange, you don’t need to calculate the tube plate first.
I am using version 4.0 and still have the same problem as you. It should be a BUG.
Please stop replying. The problem is solved. Just open a new file in SW6, enter the data again, and discard the original file. My problem may be that the file has been opened with 3.1 and 4.0, and then the two versions are incompatible.