Skirt/Ring/Pedestal Support for Vertical Pressure Vessel
Skirt/Ring/Pedestal Support for Vertical Pressure Vessel
(OP)
I am hoping the experience on here could point me in the right direction or give me a design formula that I can use to check if the thickness of the skirt is large enough.
I have tried looking in numerous design handbooks and I can only find equations for a skirt that is welded to the straight flange of the head or directly where the tangent line is. The skirt I am working with is welded directly only to the head of the vessel, (I would guess the diameter of the skirt it to be around 80% of the diameter of the head) Is there any calculations that anyone knows of that could help me validate the design of the skirt?
Below is a picture of a pressure vessel similar to the one I’m working with.

Thank you for all of your help,
Tyler
I have tried looking in numerous design handbooks and I can only find equations for a skirt that is welded to the straight flange of the head or directly where the tangent line is. The skirt I am working with is welded directly only to the head of the vessel, (I would guess the diameter of the skirt it to be around 80% of the diameter of the head) Is there any calculations that anyone knows of that could help me validate the design of the skirt?
Below is a picture of a pressure vessel similar to the one I’m working with.

Thank you for all of your help,
Tyler





RE: Skirt/Ring/Pedestal Support for Vertical Pressure Vessel
RE: Skirt/Ring/Pedestal Support for Vertical Pressure Vessel
Thank you for your input, I am looking into Roark's right now. my main concern on this design is if the skirt is a thin wall and the head is also a thin wall, (and assuming relatively heavy commodity) will the head of the pressure vessel have be stressed extremely high where it contacts the skirt.
With a lot of force pressing down, the skirt almost acts like a knife cutting into the head. (Leading to failure of the pressure vessel)
Thoughts?
RE: Skirt/Ring/Pedestal Support for Vertical Pressure Vessel
If he included similar loading for spheres or cones, that would get you a little closer.
RE: Skirt/Ring/Pedestal Support for Vertical Pressure Vessel
Thanks,
Ehzin
RE: Skirt/Ring/Pedestal Support for Vertical Pressure Vessel
RE: Skirt/Ring/Pedestal Support for Vertical Pressure Vessel
And good point JStephen, kind of moves out of typical "nozzle" territory.
Thanks,
Ehzin
RE: Skirt/Ring/Pedestal Support for Vertical Pressure Vessel
Regards
r6155