Among modern fire fighting equipment, carbon dioxide fire extinguishers are widely used in various places due to their high efficiency and environmental protection, especially in the fire fighting of electrical equipment, precision instruments and flammable liquids. Mastering the correct usage skills and maintenance methods can not only improve the efficiency of fire fighting, but also extend the service life of the equipment.
1. Applicable scenarios of carbon dioxide fire extinguishers
Carbon dioxide fire extinguishers are mainly suitable for extinguishing Class B (flammable liquids) and Class C (electrical equipment) fires. Since carbon dioxide does not leave residues after extinguishing fires, it will not cause secondary damage to precision instruments or electronic equipment, so it is often used in data centers, laboratories, archives and other places. In addition, it is also suitable for small oil fires, but it is not recommended for metal fires (such as magnesium, sodium, etc.) because carbon dioxide may intensify the combustion of such fires.
2. Correct usage tips
Pull out the safety pin: Before use, be sure to pull out the safety pin on the top of the fire extinguisher, which is a key step in starting the fire extinguisher.
Hold the nozzle: Hold the nozzle with one hand and hold the bottom of the fire extinguisher with the other hand to ensure stable spraying.
Keep a safe distance: When spraying, keep a distance of at least 1-2 meters to avoid frostbite caused by low-temperature carbon dioxide spraying.
Aim at the root of the fire source: Aim the nozzle at the root of the flame, not the top of the flame, to ensure that the fire extinguishing agent acts directly on the combustion source.
Continuous spraying: During the fire extinguishing process, the handle needs to be pressed continuously until the flame is completely extinguished to avoid re-ignition.
3. Maintenance and inspection points
Regularly check the pressure gauge: The pressure gauge of the carbon dioxide fire extinguisher should be kept in the green area. If the pointer enters the red area, it means that the pressure is insufficient and needs to be refilled or replaced in time.
Check the nozzle and nozzle: Make sure that the nozzle is not blocked and the nozzle is not rusted to avoid affecting the spraying effect.
Storage environment: The fire extinguisher should be stored in a dry and ventilated environment, avoiding high temperature or direct sunlight to avoid affecting the internal pressure.
Regular refilling: Even if it is not used, the carbon dioxide fire extinguisher needs to be professionally refilled and tested every 5 years to ensure that it is in the best condition.
Mastering the use skills and maintenance methods of carbon dioxide fire extinguishers can not only improve the ability to respond to fires, but also ensure the safety of personnel and property. Whether it is a business or a family, we should pay attention to the correct use and regular maintenance of fire-fighting equipment to prevent accidents before they happen.
