What does a perfluorohexanone fire extinguishing nozzle consist of?

Perfluorohexanone (FK-5-1-12) is a colorless, odorless, non-toxic, environmentally friendly fire extinguishing agent, widely used in various fire extinguishing systems. As the core component of the fire extinguishing system, the structure and working principle of the perfluorohexanone fire extinguishing nozzle are crucial. Perfluorohexanone fire extinguishing nozzles are mainly composed of nozzle shells, piston rods, swirl cores, nozzles, sealing devices and other components. The structural composition of different types of nozzles will be different.

1. Structure of perfluorohexanone fire extinguishing nozzle

Perfluorohexanone fire extinguishing nozzles usually consist of the following parts:

Nozzle diameter and shape: The diameter and shape of the nozzle directly affect the spray range and angle of the spray. Generally speaking, nozzles with smaller diameters can produce finer mist sprays and are suitable for protecting small spaces such as equipment and electrical facilities; nozzles with larger diameters are suitable for larger areas, such as computer rooms or warehouses.

Nozzle material: The nozzle is usually made of stainless steel or other alloy materials with good corrosion resistance to confirm that no corrosion will occur during the storage of the fire extinguishing agent and to confirm the stability of the system.

Spray generator: This is the core component of the nozzle. It converts liquid perfluorohexanone into mist spray, thereby increasing its surface area and improving fire extinguishing effect. The structural design of the spray generator affects the atomization effect. Special structures are usually used, such as porous ceramic structures or micropore plates, to ensure uniform and fine spray.

Seals: Since perfluorohexanone is a volatile liquid, the nozzle needs a stable sealing design when not working to prevent liquid evaporation and gas leakage.

2. Working principle of perfluorohexanone fire extinguishing nozzle

The working principle of perfluorohexanone fire extinguishing nozzles is based on the physical fire extinguishing mechanism. When a fire breaks out, the sprinkler heads receive a signal through a detector or manual trigger, which activates the fire extinguishing system. The perfluorohexanone inside the spray head is then released into a specific spray generator.

Inside the spray generator, liquid perfluorohexanone is pressurized and ejected through the micropore or porous structure to form tiny mist particles. These tiny particles have a large surface area and can effectively absorb surrounding heat, lower the flame temperature and inhibit the spread of fire.

In addition, perfluorohexanone has excellent dielectric properties and can form an insulating layer at the fire scene to reduce the contact between the fire source and oxygen, thus extinguishing the flame. It also has low surface tension and can quickly spread when applied to combustible surfaces to form a protective film that prevents fires from re-igniting.

In summary, perfluorohexanone fire extinguishing nozzles play an important role in the fire extinguishing system. Its precise structural design and unique working principle make it a highly efficient and environmentally friendly fire extinguishing method. It is widely used in various key facilities and places, providing a stable guarantee for the safety of people's lives and property.

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