Storage Tank
Storage Tank
(OP)
We have a atmospheric storage tank which has caved in due to vacuum - the tank is a 10000 gallon storage tank - above ground - chepaer to repair than to replace?
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
|
RE: Storage Tank
The tank should have either 2 vents or have the single vent protected with birdscreen. I've seen cases where the vent is plugged by the painter's plastic tarp which resulted in collapse of the tank.
The vent size should be based on ensuring the air pressure loss thru the vent during max pump runout flow does not exceed the exernal pressure permissive.
RE: Storage Tank
I think we came apart at the seam - we know what we should of done - but now we have the problem.
RE: Storage Tank
RE: Storage Tank
If this was a 10,000 gallon, flat-bottomed (API-650 style)tank that was made from carbon steel, and shop fabricated.....I would replace it. If it was stainless, rework it
How old was it anyway ? Where is it ? Was the tank in some kind of corrosive service ?
The cost of straightening, rewelding pannels, painting etc a tank of this size is not worth it.
Replace it with a new properly coated and vented "shop fabbed" tank and consider it an investment
My thoughts only
MJC
RE: Storage Tank
RE: Storage Tank
An article I read years ago stressed DO NOT put any actual pressure in the tank vapor space, you literally should just need a few extra inches of water pressure to do this.
RE: Storage Tank