Short-circuit issue on the hydrogenation reactor pipelines!
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This post was last edited by libingtaoff8 on 2016-10-30 at 18:29. The hydrogenation reactor has flanges at both the inlet and outlet; both the first and second flanges are equipped with protection steam. There are 8-shaped blind plates at the inlet first flange and the outlet second flange. Why is it designed this way? What is the purpose of this bypass? Seeking everyone’s guidance?
Used for loading and unloading catalysts; otherwise, how can you isolate it? How to remove the reactor lid?
Many devices are designed this way to enable isolation during shutdowns for maintenance.
One flange is enough; there’s also that blind plate – why is there another one! The catalyst has been unloaded from the discharge port!
The one with the blind flange will do, so what’s the use of another one!
Personal opinion: It might be used to connect pipes after all the short pipes have been removed; the manufacturing process might differ； We don’t have such a design here. Is the protection steam a circular distribution pipe with holes?
Yes, the steam protector is a perforated distribution tube!
On the one hand, for ease of maintenance, this section can be taken down to the ground directly； On the other hand, it can offset some of the thermal stress and prevent forces from acting directly on the equipment flange.