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Fire Suppression over a long pump row

Fire Suppression over a long pump row

Fire Suppression over a long pump row

(OP)
Can anyone point me in the right direction for a discussion on "Fire Suppression over a long pump row"?

I assume there are three possibilities --
1. Steam rings
2. Water
3. Foam water

At the moment, I am in a cold weather refinery with an old enclosed Pump House.  We are removing the walls of the pump house, in order not to allow hydrocarbon vapors to accumulate.

Originally, the entire pump house was designed with a steam snuffing line, nozzles pointing down, that ran 8 feet over the pumps.  

With the removal of the walls, steam may no longer work, in case of a pump fire, since steam would likely be dispersed quickly.

Any thoughts, comments, points-in-the-right-direction, on how to best design a fire suppression system for this set up ?

Thanks much

CJ711
 

RE: Fire Suppression over a long pump row

You can refer to NFPA15.

RE: Fire Suppression over a long pump row

(OP)
Thank you, SeanB.  I did just now review NFPA15, based on your recommendation.

Would you, or others, happen to know if water spray, as discussed in NFPA15, is the preferred/recommended risk management approach ?

Thanks,

CJ711

 

RE: Fire Suppression over a long pump row

I have used a water spray system over a row of pumps. The system was actually already in place, but we brought it up to code. We tried to place nozzles such that the spray stayed away from the motors and was concentrated on the pump. Our concern was for a seal fire.

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