Connection of the tube sheet to the shell in a fixed-tube-sheet heat exchanger
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I encountered some issues while designing. There are two options for the way in which the tube sheet of a fixed-tube-sheet heat exchanger is connected to the shell: one option involves using flanges, while the other does not. When should the former option be chosen and when the latter? What are the criteria for making such a decision? Thanks, boss?
Is it related to the coefficient of expansion and the structural length? Unprofessional imitation questions, for reference only.
The structure is determined based on the requirements of the process parameters; when flanges are also required, most of the tube box can be removed, and the selection is generally made in accordance with Appendix I of GB/T151-2014.
Process determination, economic comparison, strength requirements.
Check the pressure and whether cleaning is necessary; flanges are generally not used for high-pressure systems, while it doesn’t matter much for low-pressure systems