Verification of the saddle support for heat exchangers
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I am currently working on my graduation project, which involves fixed-tube-sheet heat exchangers. Finally, it is necessary to perform a verification for the saddles; the distances from these two saddles to the tangent line of the head are not equal. Should the verification be carried out using the methods applicable to asymmetric saddles in horizontal vessels?
If I make the distances from the two saddles to the tangent of the head equal, can I perform the verification using the two saddles in a symmetric arrangement?
The distances between the two saddles from the tangent to the head need not be equal; in most cases, no verification is required, as the heat exchanger shell has minimum thickness requirements that ensure compliance with strength and stiffness criteria. However, for heavy heat exchangers or those with overlapping sections, it is necessary to verify the strength and stability of the supports and the shell.
The heat exchanger shell has minimum thickness requirements to ensure the necessary strength and stiffness. The distances between the two saddles and the tangent to the head need not be equal; asymmetric placement of the saddles can be used for the analysis of horizontal vessels.
Thank you, but I want to conduct a verification now. Should I carry out the verification using a symmetric or asymmetric saddle?
Check is performed according to the asymmetric saddle.
Check according to the structure of the component in question; however, under the new standard GB/T151-2014, symmetry is required, so make it symmetric. This fits the mechanical model!
It is best to conduct the relevant verification in accordance with the appendix of NB/T47042, based on the requirements of your saddle structure.