Bulge in Vessel Skirt
Bulge in Vessel Skirt
(OP)
Hi guys. I have been asked to look at a vertical vessel (a gas compressor skid suction scrubber) that has a bulge in the skirt. The owner is concerned about fitness-for-service. I am trying to get more details, like how did the bulge get there, but in general how would one make the assessment? Do I need a forensic specialist that can run an FEA on the bulge and provide an opinion?
Thanks guys! Pete
Thanks guys! Pete





RE: Bulge in Vessel Skirt
RE: Bulge in Vessel Skirt
I would suggest to check the stresses in the shell in the operating condition. If the shell is currently underdesigned, or seems borderline, it should be repaired or modified. If the shell calculates out okay, it may have been damaged by seismic action or by handling when setting, etc, and in that case, MAY be okay until the event happens again- and probably should be repaired in that case as well.
If the bulge does NOT look like elephant's foot bulge, please disregard the above and get us a better description!
Some online photos:
http://www.structuremag.org/images/0307-cs-5.jpg
http://saprefresh.oes.ca.gov/images/reservoir.jpg
http://lef.uprm.edu/Failure%20of%20two%20Tanks/Exa...
RE: Bulge in Vessel Skirt
RE: Bulge in Vessel Skirt
RE: Bulge in Vessel Skirt
RE: Bulge in Vessel Skirt
RE: Bulge in Vessel Skirt