Design of the reinforcement ring for the desulfurization tower
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1. There has always been a question that I haven’t been able to figure out: When designing the wall thickness of a desulfurization tower in accordance with NBT47041-2014 for tower-type containers, if all stress checks (including axial stress checks, axial stability checks, and tensile stress checks) meet the requirements, is it still necessary to install reinforcing rings around the tower? 2. Is there any connection between the layout of the external reinforcement ring around the tower and 47041? How should the external reinforcement ring around the tower be calculated and designed? 3. The desulfurization towers that are currently in use all have reinforcement rings; some have more of them while others have fewer, and the size of these reinforcement rings also varies. I’m not sure how to start calculating this.
It also depends on the design pressure; moreover, whether a windbreak ring is needed depends on the design requirements
Internal pressure desulfurization towers do not require reinforcement rings, while vacuum-operated desulfurization towers may need them. Additionally, the tower designed according to 47041 does not consider a windbreak ring. Could the reinforcement ring outside the tower you mentioned be the insulation support ring?
It can be regarded as a atmospheric pressure tower; the pressure inside the tower is very low, generally below 5 kPa, and many of its tops are open, allowing communication with the outside environment
Thank you for the reply. It can be used as a support ring for insulation layers. In other words, for the tower designed as 47041, if insulation is not required, is it then unnecessary to use reinforcement rings?
If insulation is not required, there is no need for an insulating support ring. Support rings and reinforcement rings are different concepts with distinct functions.
Is the desulfurization tower connected to the atmosphere? Something’s not right, is it?
Even so, the pressure at each section is different, and a margin must also be taken into account in the design