Selection of calculation standards for heat exchanger tube sheets
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I’m a complete novice when it comes to pressure vessels, and I have a question for the more experienced colleagues. When calculating the tube sheets of heat exchangers, there are two standards that can be used: GB151 and JB4732. What impact do these standards have on the calculation results? What are the differences between them? When should GB151 be used, and when should JB4732 be used? I would appreciate guidance from the experienced colleagues and teachers
Look at Chapter 1 of these two standards
GB151 is a conventional design standard, while JB4732 is an analytical design standard; it depends on whether your design method relies on conventional design or analytical design
1. GB151 is generally used for the calculation of tube sheets in cases where the pipes are arranged symmetrically and evenly, and certain requirements exist regarding the pipe layout ratio； 2. It is generally recommended to use GB151 for calculations; if that is not possible, or when the piping arrangement is very uneven or asymmetrical, then 4732 should be used for the calculations.
Refer to Section 7.4 of GB/T151 for the scope of application of tube sheet calculations.