Some questions regarding fixing the sprinkler protection area
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Regarding the protected area covered by fixed sprinklers for liquefied petroleum gas, \"tanks within a radius of 1.5 times the diameter of the tank on fire are considered to have half of their total surface area covered.\" Once the fixed sprinklers are activated, is only half of the surface area of adjacent tanks sprayed, or is the entire surface area covered? If all of them are turned on, the fire suppression water volume may not be sufficient to meet the water demand for firefighting.
The water volume is calculated based on half of the area, and of course only half of the nozzles can spray water when it’s in use. This requires installing at least two water supply pipes and control valves
Yes, I think the same. It seems there was a problem with what we did before. The valves are not set separately. During spray cooling, it is kept fully open, resulting in insufficient water level in the fire tank, and the capacity to replenish water is not sufficient to address this issue. Is the situation on site also such that only half is open?
For a single-row arrangement with two valves and two risers, or a double-row arrangement with four valves and four risers, the valves need to be opened in combination according to the different pipes involved in the fire. It is essential to follow the design specifications on site; otherwise, the issue of insufficient water flow you mentioned will occur
This is too theoretical. In an emergency, one should determine how to isolate the area and extinguish the fire based on factors such as wind direction, water volume, and the intensity of the fire, by considering different situations. A shortage of water may occur, and these points should be included in the emergency plan. Fire protection hardware facilities must be complete
It’s indeed too theoretical; when a fire actually breaks out, they all have to be turned on. If they’re all turned on at once, there will definitely not be enough water.