HIGH PRESSURE WATER MIST EXTINGUISHING EQUIPMENT
Atomizing water into micrometre drops favourably influences the energy conversion efficiency of heat transfer and hence the extinguishing process. The use of water mist can significantly reduce the amount of water needed for extinguishing, close to the theoretical fire water requirement. It is primarily used to extinguish surface fires of solids. Deep-burnt, smouldering materials can be extinguished using particles introduced with high energy. It has the advantages of very good energy conversion efficiency, low extinguishing agent requirement and minimal water damage. The water mist is created by special spray nozzles at high pressure and high blow-out speed. In the event of a fire, water droplets of 30–200 microns in diameter flood the protected area, exerting their extinguishing effects in the immediate vicinity of the fire. The high surface-to-mass ratio of water droplets allows for rapid evaporation, allowing the water mist to quickly absorb heat and efficiently reduce ambient temperature. The water mist extinguishing equipment prevents the spread of fire and significantly reduces the radiation of heat to surrounding surfaces. The physiologically safe, clean water mist allows people to escape quickly and easily, and helps firefighters reach the site of the fire.
Advantages of high pressure water mist extinguishing equipment
- Since the extinguishing is performed with clean water, it is completely harmless to the human body and has no harmful effect on health. This is also supported by NPFA studies.
- The fire alarm system immediate responds; the quick release of the heat trigger ampoule starts the extinguishing without delay
- The water mist ensures the rapid cooling of the fire site and the environment, thus preventing possible re-ignition
- High-pressure water mist effectively removes tiny solid particles from the fumes, reducing contamination and improving the visual conditions required for evacuation.
- 3 dimensional smothering effect: The high-pressure water mist acts as a gas, and thus, it can extinguish even a hidden fire source.
- Due to the low water consumption, the amount of water damage during extinguishing is minimal
- During the extinguishing, no harmful substance to the environment is produced
Applications of high pressure water mist extinguishing equipment
- Tunnels
- Vehicles: passenger and engine compartments
- Cable ducts, cable tunnels
- Industrial production lines, equipment
- Engine rooms
- Paper mills, production lines
- Exhaust systems
- Buildings
- Transformers, gas turbines
- Electrical equipment
- Computer centres
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Contact information
Phone:
+36-30-221-3916
E-mail:
info@deliontechnik.eu
Name:
Szabó Dániel Building Services Engineer