Subsurface Foam Injection in Storage Tanks

[JoseAcevedo]

Could anyone tell me when is recommeded subsurface foam injection in vertical storage tank for fire fighting?.

What kind of product need, for fire fighting, subsurface foam injection?.

 

[cdafd]

suggest you contact someone in the industry. I thought there was a question about this already here, but cannot find it.

http://www.williamsfire.com/products/ctlgpages/SUBSURFACEDETAILS.pdf

http://www.chemguard.com/pdf/design-manuals/D10D03192.pdf

 

[786392]

As stated here above by 'cdafd' you should get good guidance from such vendors and also from

http://www.springerlink.com/content/j7855011h2tk6338/

Few things of great importance and relevance to note& follow are
1) the protected liquid's specific gravity and foam produced& base injected specific gravity should have marked difference i.e. foam must be very much lighter ensuring rise to surface.
2)Foam must stay 'im-miscible and comparable for use with stored material;not to form some mixture and stay with tank contents instead of rising to the surface on fire.
3) Since the mechanical piping,valves etc connected with the tanks are to be kept open they become(or should be considered as)a part of storage tank system and may need higher degree of Mechanical Integrity on sustainable basis against leakages,Corrosion effects or any other un-intended damages from physical movements nearby.
hope all this prove helping for your problem resolution and guiding.
Best of luck.

Best Regards
Qalander(Chem)

 

[786392]

Another useful link from internet


Best Regards
Qalander(Chem)

 

[stookeyfpe]

If you are dealing with an alcohol formulated fuel, subsurface injection is not allowed.