Disposal of stainless steel storage tanks
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There is a stainless steel storage tank in the plant that has been in use for 10 years; it has some punctures and is leaking. Can it be repaired? What would be a reasonable reason for scrapping something?
Is it at atmospheric pressure or under pressure? Is there a floating roof? It also depends on the medium used.
It can’t be repaired; there’s likely still a lot of pitting. Reason for scrapping: Corrosion
The repair value is low, and the procedures for scrapping atmospheric and pressurized vessels are different.
We need to buy another one; we specialize in stainless steel tanks.
It is recommended to leave this task to the Equipment Department; you just need to prepare a status report. The Equipment Department is specialized in this; have them go to the site for an assessment. The actual conditions of corrosion, the specific wall thickness of the tank, and the pressure-bearing parameters are unknown. It would be best to send a video to see the degree of corrosion. Oh, it would be best to include the stainless steel model and the medium inside the tank. Facilitates discussion.
I’m from the Equipment Department; the manager said it should be scrapped. I can’t ask the manager too many questions; I’ll find out more first and then consult Haiyou
This post was last edited by CHANGBAISHI on 2019-9-13 at 16:17. Oh, this requires an on-site inspection; even if a decision cannot be made, it’s still important to understand what happens there, so as to use that as a basis for future decisions. There must be a basis for scrapping equipment, with a parameter that compares maintenance costs to the cost of replacement.
It would be best to provide the medium, device model, and material. It would be best to have photos from the scene. It is estimated that many items end up being scrapped; many of those repaired on-site only become more damaged as a result of the repairs
It is best to measure the wall thickness; if it has thinned significantly and no longer meets the strength requirements, and the medium is explosive or toxic, a leak could cause serious harm, which provides even stronger reasons for taking action.
It’s been ten years; the lifespan is probably near its end. Of course, a comprehensive examination is needed. Check whether it is a localized issue or a problem affecting a larger area. If it’s a minor, occasional issue, it can be repaired and used again; if it’s not accidental, then it’s better to replace it.