if we have a pressure vessel .compr 1

[harris khan]

if we have a pressure vessel .compressor air receiver which receives wet air .due to corrosion its remaining life is 5 years .how can we extend its life i.e by coating the inner serface.if anyone has an idea what standards are there for inside coatings related to pressure vessels

 

[LittleInch]

Depends on how big the air receiver is.

If you can get access to the inside via a manhole then you can internally coat the PV. If its too small to do that just buy another one, but feed it with drier air.

There are many many types of internal coating. contact a specialist vendor to choose the right one for your duty. Probably a spray on epoxy lining after grit blasting would do what you need.

How many more of these random questions are we going to get?

You are supposed to be an engineer and have done some work already to look at your issue. This doesn't seem like it and it's not a free engineering service.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[harris khan]

thank you im currently a trainee so not familiar with much terms sorry for that and really appriciate your answer im trying to be better daily

 

[harris khan]

thank you soo much ,im currently a trainee and am not that familiar with such terms ,im tyring to improve daily and i really appriciate your answers

 

[LittleInch]

There is a student forum which might be more appropriate to asking questions like this, but please try looking things up first then come looking for an explanation or greater understanding.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[SJones]

ISO 18796-1 will be a reasonable starting point. Since the inner surface has been corroded it renders things slightly more problematic in that fillers/caulks my be required to fill any pits first. The choice of method and material would have to be coordinated with the paint manufacturer.

Steve Jones
Corrosion Management Consultant

http://www.linkedin.com/in/drstevejones

All answers are personal opinions only and are in no way connected with any employer.

 

[rb1957]

i'd be much more concerned about the loss of thickness, and having to rebuild it in an effective manner.

Why do you think you have 5 years left ? Did you buy it 25 years ago with a 30 year life ?
or did someone look at the corrosion and go "ohhh ... that doesn't look good ..."

What sort of pressure are we talking about ?

"Hoffen wir mal, dass alles gut geht !"
General Paulus, Nov 1942, outside Stalingrad after the launch of Operation Uranus.

 

[mk3223]

IMO, since the vessel was inspected and analyzed with the remaining 5 years life, from the O&M point of view, a shutdown plan may be scheduled to replace it instead of trying an alternative to extend its life. Just my opinion.

 

[david339933]

Should have a dryer/dessicant system prior to going into the receiver.