Help needed: vibration problem with heat exchanger
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May I ask, when the fluid in the shell side induces vibration in the tube bundle of a heat exchanger, what is the typical amplitude of the tube vibrations? How big can it get?
Look at the section on induced vibration in the appendix of GB151; you can take a look for yourself – generally, people don’t pay much attention to these things
The amplitude isn’t really a concern; I guess it can be determined using HTRI or HTFS software
There will be output values on HTRI, but since I can’t conduct the experiments myself, I have to rely on HTRI.
It is generally not calculated, but our company requires the design institute to do so; if the value calculated turns out to be too high, more reinforcement plates will be needed! Otherwise, the tube bundles are prone to falling off at the welding points.
To determine the kinetic energy of the heat exchange tubes during vibration, there are corresponding analysis results available in HTRI.