so many issues with a tank
so many issues with a tank
(OP)
ok... so i'm asked to look at a tank to give a design for a manway addition to an existing tank. When we got there, we found out that
1. the tank was an excavated UST that has been empty for a while and now they want to use it to hold acetone and other flammable solvents with high vapor pressures.
2. they don't plan on venting it.
3. the tank has a massive dent on one side (probably from the excavation).
i don't mess around with pressure vessels so i can't say much about it, but i feel like they will be wasting their time with this tank if they won't vent it. any advice? have you crossed this before?
1. the tank was an excavated UST that has been empty for a while and now they want to use it to hold acetone and other flammable solvents with high vapor pressures.
2. they don't plan on venting it.
3. the tank has a massive dent on one side (probably from the excavation).
i don't mess around with pressure vessels so i can't say much about it, but i feel like they will be wasting their time with this tank if they won't vent it. any advice? have you crossed this before?





RE: so many issues with a tank
RE: so many issues with a tank
hee-hee, i know it. i'm outside of the blast zone at this moment... (j/k , it's not in service right now)
We briefly discussed them getting a tank integrity study done. i want to tell them they'll need an engineering evaluation for the change of use issue too. they have a consultant that puts out a pretty solid report. i'm throwing this post out because i think they would be wasting their money to go after a study without conceding that the tank will need to be vented from the get-go. the venting may be a deal-breaker for them. if some people with pressure vessel experience agree with my hunch that it would be a waste, would your opinion change if the tank wasn't damaged?
RE: so many issues with a tank
RE: so many issues with a tank
I think the owners should find out the local regulations - someone might end up in serious trouble if anything goes wrong.
Work out the Potential Impact Radius and keep WELL away.
Ron Frend
http://www.predicon.net
RE: so many issues with a tank
scrap it and get a new one designed for its use
<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying " Damn that was fun!" - Unknown>>
RE: so many issues with a tank
RE: so many issues with a tank
The fact that the tank does not have an emergency vent places firefigthers in danger if the tank is involved in a fire.
If that tank was (or is) in my jurisdiction, the tank would be legally declared an imminent hazard and the owner would be charged with criminal negligence.
Tell the owner to enjoy the ride in backseat of the police car....