Tube sheet calculation
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One end of the tube sheet has an extended portion that functions as a flange, while the other end does not have a flange; calculations are carried out based on the design of the tube sheet in that respective form. How to calculate it.
I’m not quite sure about this structure. From what I can tell, it seems to be a fixed-tube-sheet heat exchanger, where one tube box is removable while the other tube box is welded in place and cannot be removed, right? If that is the case, the two tube sheets should be calculated separately: one should use the flanged method and the other the welded method. If the gauge pressure is not very low, a flange is generally required, and the thickness will be greater due to the torque exerted by the flange; however, calculations are still necessary. After obtaining the results, it is still recommended to run both calculations using the thicker tube sheet thickness; choosing the same thickness is better. If the tube sheets on both sides have different thicknesses and the difference is significant, it can affect the calculations and lead to less accurate results.
As stated in the interpretation of standard GB/T151-2014, this standard is not applicable to the calculation of fixed-end plate heat exchangers where one end serves as a flanged plate while the other end does not serve as a plate flange