E-Boogie
Mechanical
- Nov 26, 2018
- 13
Description of problem:
We have a 48" OD vessel with a 48" OD skirt.
The skirt is 0.25" thick (only 0.0216" thickness required) and just under 3" tall with no base ring.
The drain on the vessel is a flanged T connection and must exit the skirt at opposite sides.
The maximum opening I can put in my skirt according to Compress is 11.875" ID, so a 12" XS pipe would work for my skirt opening.
An access opening should be 16" ID which the skirt access is not.
We will be able to fabricate the vessel but making a field adjustment would be quite difficult for our customer. They have asked if we would be able to cut a mouse hole in the skirt to afford them more working room. This would be a removal of a large amount of steel, and cannot be accounted for in Compress. I would feel much more comfortable with 1 mouse hole instead of the 2 they requested.
I can run an FEA if needed but would prefer a set of equations for a hand calculation. I have PV Handbook 14th Ed. by Eugene Megyesy, I found skirt design but I did not see skirt openings.
Thanks for any input guys!
We have a 48" OD vessel with a 48" OD skirt.
The skirt is 0.25" thick (only 0.0216" thickness required) and just under 3" tall with no base ring.
The drain on the vessel is a flanged T connection and must exit the skirt at opposite sides.
The maximum opening I can put in my skirt according to Compress is 11.875" ID, so a 12" XS pipe would work for my skirt opening.
An access opening should be 16" ID which the skirt access is not.
We will be able to fabricate the vessel but making a field adjustment would be quite difficult for our customer. They have asked if we would be able to cut a mouse hole in the skirt to afford them more working room. This would be a removal of a large amount of steel, and cannot be accounted for in Compress. I would feel much more comfortable with 1 mouse hole instead of the 2 they requested.
I can run an FEA if needed but would prefer a set of equations for a hand calculation. I have PV Handbook 14th Ed. by Eugene Megyesy, I found skirt design but I did not see skirt openings.
Thanks for any input guys!
