How Dangerous Is CO2 Fire Extinguisher Pressure?

27/09/2022

CO2 fire extinguishers are a familiar sight in our offices, hotels and shops, but with so much gas held under pressure, how safe are these extinguishers?

CO2 Fire Extinguisher (carbon dioxide), commonly known as CO2 fire extinguisher, is a highly effective extinguishing agent for use on fires involving electrical equipment. The CO2 tank has a special 'horn', which acts as a diffuser to ensure the gas is directed exactly where you need it.

SO How Dangerous Is CO2 Fire Extinguisher Pressure? Is this something you have ever been interested in? I think there is, but to understand deeply, we will discuss this now.

Áp suất bình chữa cháy CO2 nguy hiểm như thế nào?

How does a CO2 fire extinguisher contain so much gas?

- CO2 gas is kept in the fire extinguisher under pressure, usually about 55 bar at room temperature. For comparison, pressure cookers operate at a pressure of 1 bar, modern car tires are typically inflated to a maximum of 2.5 bar, while airplane tires are inflated to up to 14 bar.

- At a pressure of 55bars, about 2/3 of the extinguisher's contents are carbon dioxide in liquid state, with the top layer being gas. The fire extinguisher is sealed by a sophisticated valve mechanism to maintain the required pressure, indicated by a pressure gauge on the valve body. CO2 is only released when the safety pin or clip is withdrawn, and the extinguisher handles are pressed tightly together.

Why is CO2 released into white clouds?

Áp suất bình chữa cháy CO2 nguy hiểm như thế nào?

- When the valve is opened, highly compressed carbon monoxide gas, normally held in a semi-liquid state under pressure in the fire extinguisher body, is rapidly released. When the gas changes to a gaseous state, it freezes the moisture present in the air, forming a cloud of white gas and freezing water that removes oxygen from the fire, starving it of fuel. The area around the fire is also cooled quickly, avoiding further damage to equipment due to residual heat.

- Once released, the gas itself simply disperses naturally into the atmosphere, leaving behind no sticky mixture, powder or other residues. - How dangerous is CO2 gas?

- Carbon dioxide itself is not a dangerous gas. In fact, it is the key to human respiration, since CO2 accumulation in the lungs regulates breathing, not lack of oxygen. (That's why breathing into a paper bag if you're hyperventilating will help regulate your breathing.) However, after using a carbon dioxide fire extinguisher, you should always leave the area and ventilate the area. wind as soon as it is safe to do so.

- The gas is kept under pressure in a CO2 fire extinguisher in a steady state as long as the pressure is maintained. If the pressure drops, due to a leaking or damaged valve, all that will happen is that the CO2 will simply turn into a gas and 'whistle' away harmlessly. A regular visual inspection schedule will ensure that you detect any damage in time to repair or replace your CO2 fire extinguisher before any leaks occur.

- Why are all CO2 fire extinguisher nozzles not equal?

- The unusual feature of the CO2 Fire Extinguisher is their diffuser horn, which has a very effective air extraction function. Because the horns are the first point of contact for the released gases, they cool very quickly. On some car models, touching the horn of a CO2 fire extinguisher during use can lead to severe frostbite (frostbite), so always look for a fire extinguisher with a 'frost-free' horn. They are insulated so that if you accidentally touch them, your skin won't freeze.

- To protect the safety of yourself and others, carbon dioxide fire extinguishers should only be discharged by holding the extinguisher (not the hose) and pointing the nozzle away from the body. NEVER look at the nozzle of a CO2 fire extinguisher; When the fire extinguisher operates, you will see and hear the gas escape in a cold, white cloud.

 How Dangerous Is CO2 Fire Extinguisher Pressure? After reading the article, you will have a brief understanding of this type of fire extinguisher

 

 

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