Carbon dioxide fire extinguishing system is currently widely used in various special environments. Its fire extinguishing principle is to achieve the fire extinguishing effect by weakening the oxygen concentration in the fire zone through the chemical reaction of carbon dioxide. This article will introduce in detail the working principle, scope of application, advantages and disadvantages of carbon dioxide fire extinguishing systems.
1、 Operating principle of carbon dioxide fire extinguishing system
The working principle of a carbon dioxide fire extinguishing system is to control the oxygen content of the fire source by emitting carbon dioxide. Compressed carbon dioxide enters the fire source under pneumatic or electrical operation, reducing the oxygen content around the fire source from 20% to 22% to less than 14%, thereby strangling the fire source. Carbon dioxide has the advantages of efficient asphyxiation and blocking combustion chain reactions, which can effectively control ignition sources and protect equipment.
2、 Scope of application of carbon dioxide fire extinguishing systems
Carbon dioxide fire extinguishing systems are suitable for extinguishing fires in various environments, such as energy, aviation, electronics, electricity, medicine, and other industries. The equipment involved includes substations, computer rooms, aircraft cabins, ships, and so on. It is particularly suitable for closed, continuous, and highly hazardous equipment and places, such as radio frequency interference sites, nuclear fuel processing plants, liquefied gas storage tanks, etc. For the fire suppression of these equipment and places, carbon dioxide fire extinguishing systems exhibit particularly significant effects.
3、 Advantages of carbon dioxide fire extinguishing systems
1. High fire extinguishing effect: Carbon dioxide can adjust the oxygen concentration around the fire source, effectively suffocating the fire source, protecting equipment, and preventing the spread of fire.
2. Convenient to use: The carbon dioxide fire extinguishing system is simple to use, and can be exported through pneumatic or electrical operation to control the fire source.
3. Environmental protection and energy conservation: Carbon dioxide is an environmentally friendly fire extinguishing agent that does not produce pollutants, and has high environmental requirements for special locations. Carbon dioxide fire extinguishing systems have become the first choice.
4. Wide range of application: Carbon dioxide fire extinguishing systems have a wide range of applications, suitable for fire extinguishing in various environments, and are widely used in industries such as energy, aviation, electronics, electricity, medicine, and so on.
4、 Disadvantages of carbon dioxide fire extinguishing systems
1. Carbon dioxide fire extinguishing systems have certain safety hazards: Carbon dioxide is an asphyxiating gas, which can cause a risk of suffocation and death if misoperated or personnel are not evacuated in a timely manner during the fire extinguishing process. Therefore, when using carbon dioxide fire extinguishing systems, it is necessary to pay attention to safe operation and avoid misoperation and personal injury.
2. The cost of carbon dioxide fire extinguishing systems is high: Carbon dioxide fire extinguishing systems have high equipment prices and high maintenance costs, and are not suitable for general units and households, but only for large units and special locations.
3. The effect is affected by environmental conditions: The effectiveness of carbon dioxide fire extinguishing systems is difficult to deal with large and rapidly developing fires, and they take effect slowly in high humidity and closed environments.
Conclusion: Carbon dioxide fire extinguishing systems have the advantages of high efficiency, convenient use, environmental protection and energy conservation, and wide application range, especially suitable for extinguishing closed, continuous, and high-risk equipment and places. The disadvantages are high safety hazards, high costs, and the effectiveness is affected by environmental conditions. Appropriate fire extinguishing systems need to be selected based on the characteristics and requirements of specific locations.
