Regarding the feed line for the hydrogenation reactor
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Have any of the experts seen bag-shaped sections in the pipeline running from the outlet of the radiation chamber of the hydrogenation reactor heating furnace to the hydrogenation reactor itself, as well as in the pipeline running from the outlet of the convection chamber of the hydrogenation reactor heating furnace to the bottom of the distillation tower (for bottom reboiling)? If so, what is the behavior of vibration in these pipelines during operation?
What is a bag-shaped pipe? Expansion joint?
It is a pipeline with liquid bags, where the flow of the medium first occurs from top to bottom, then horizontally, and finally from bottom to top as it enters the equipment.
I have seen situations like the one you described. In such cases, there is usually a flow control valve installed at the furnace outlet; to facilitate maintenance and repairs, this valve is placed on the ground, which is why the pipeline in question develops a bag-like shape. The magnitude of this vibration depends mainly on the type of power source used upstream. If it is a reciprocating pump, vibration will certainly occur; however, as long as the fixing support points are designed properly, there should be no problem.