What is the principle of fire extinguishing of 5KG EN3 Portable CO₂ fire extinguisher- Shaoxing Xieli Fire Safety Equipment Co., Ltd.

What is the principle of fire extinguishing of 5KG EN3 Portable CO₂ fire extinguisher

The core fire extinguishing principle of 5KG EN3 Portable CO₂ fire extinguisher is to use the huge heat absorbed by liquid carbon dioxide when it is converted into gas, and the dual effect of carbon dioxide gas covering the surface of the flame to isolate oxygen. This fire extinguishing method is not only quick and effective, but also pollution-free to the environment. It is particularly suitable for places such as electrical equipment, precision instruments, libraries, and museums that need to avoid water damage and electrical short circuits.

When the fire extinguisher is activated, the liquid carbon dioxide inside is quickly converted into gas under high pressure. In this process, the transition of carbon dioxide molecules from liquid to gas requires the absorption of a large amount of heat, the so-called "heat of vaporization". This characteristic enables the ejected carbon dioxide gas to quickly reduce the temperature around the fire source, weaken the heat source of the flame, and thus slow down the spread of the fire. In addition to absorbing heat and cooling, carbon dioxide gas also spreads rapidly and covers the surface of the flame after being ejected due to its high density and non-flammable characteristics. This thick layer of carbon dioxide gas effectively isolates the flame from the oxygen in the surrounding air, cutting off one of the three elements of combustion - the combustion aid (oxygen). As the oxygen around the flame is exhausted, the combustion reaction gradually weakens until it stops, thus achieving the purpose of extinguishing the fire.

The 5KG EN3 Portable CO₂ Fire Extinguisher does not produce any residue or harmful substances during the fire extinguishing process, and is environmentally friendly. Since its working principle does not involve chemical reactions or the production of high-temperature and high-pressure gases, it is relatively safe during use and will not cause secondary harm to the user or surrounding personnel.