Storage tank implosion
Storage tank implosion
(OP)
Hi, new to this site, which was found whilst searching Google for the above. I am Plant trainer, with no professional qualification, but am ever eager to increase my process knowledge. I am preparing some training on above ground storage tank design and safe operation. I have already covered the fragility of tanks ( tin of beans, 0.3psi),weight viz volume, venting / N2 addition, and the importance of pressure/level alarms.
I was wondering if:-
a) there was anything else that I could add
b) if anybody knows where I may find more info
I hope the above is in-line with the theme of this board.
Thanks Peter
I was wondering if:-
a) there was anything else that I could add
b) if anybody knows where I may find more info
I hope the above is in-line with the theme of this board.
Thanks Peter





RE: Storage tank implosion
RE: Storage tank implosion
RE: Storage tank implosion
RE: Storage tank implosion
http://www.protectoseal.com/tank_training.html and
http://www.protectoseal.com/tank_codes.html
Also
http://www.grothcorp.com/dwnload.htm
Look at their Product Selection Guide under LOW PRESSURE SYSTEMS PROTECTION CATALOG
RE: Storage tank implosion
There is another forum about storage tank design that you may want to review.
The site is: www.ast-forum.com
Although may questions are about the details and minutae of design, saftey and protection against vacuum collapse are mentioned.
There are also a couple of books about process plant disasters that you may want to purchase.....they contain details about tank mishaps. All are available from AMAZON
"What Went Wrong?: Case Histories of Process Plant Disasters" by Trevor Kletz
"Learning from Accidents" by Trevor A. Kletz
MJC
RE: Storage tank implosion
Bryan Haywood
www.SAFTENG.net
RE: Storage tank implosion
In some cases, the tank is restored to original shape simply by refilling with water or whatever fluid it was designed for.
RE: Storage tank implosion
RE: Storage tank implosion
RE: Storage tank implosion
RE: Storage tank implosion
RE: Storage tank implosion
Incidently Trevor Kletz cites the proper method of popping out a tank that has been sucked in- attach a stand pipe to the vent nozzle and fill with water until hydrostatic pressure pops the tank back into shape.
RE: Storage tank implosion
This is an interesting method.........which Kletz book did this come from ?
Does anyone else have any website or internet references wher a collapsed tank has been reshaped ?? How about books or texts or case histories ???
Are there any contractors that specialize in this type of work ?
It is my understanding that this can only be done, "on the sly" and it may invalidate any warantee from any tank vendor ?
Comments anyone ????
MJC
RE: Storage tank implosion
RE: Storage tank implosion
Greetings
You are very correct in your teaching: most vessels are for storage,ie internal pressure and are very unstable under external pressure due to buckling and elastic instability.
The root is that the walls are thin compared with the diameter and as diameter increases the plate approaches a flat plate.
My field is plastics materials and design of vessels manufactured from thermoplastic or thermoplastic/GRP the 'dual construction'
An external loading can develop from, wind pressure (gusts); bending due to wind (buckling); load arm on external bracket; blocked vent or vent of insufficent size or in the very extreme case a low level manhole became
detached and as the top vent was (now) severly undersize - the whole collapsed (and it cost £1 million to clean up the site)
The lesson to be learnt? Ask the right questions before design and consider ALL external loadings.
Regards from Birmingham, England (where plastic's were invented!)
Ed Clymer
Resinfab & Associates
England
RE: Storage tank implosion
I am NOT an expert at this subject, but I have listened to experts speak on the subject and know that it can and is done at least with API tanks! Not aware of any ASME tanks being done this way.
The more you learn, the less you are certain of.
RE: Storage tank implosion
I've seen pictures where this happened to a remote tank where it was completely sucked in...to the point that the tank wall ripped off of the floor in one area. The note that came along with the pictures said "Is there anyone that HASN'T done this?"
Yup...a pretty common boo-boo.
Regards,
Bob
RE: Storage tank implosion
Never try to use pnuematic pressure to blow out a dent- this could be very very dangerous.