What is the principle of carbon dioxide fire extinguishers?
First of all, carbon dioxide can neither burn nor support combustion.
After spraying, the carbon dioxide gas burning and air cut off, reducing the combustion around oxygen, thereby preventing combustion; also carbon dioxide ejected from the cylinder, pressure drop, rapid vaporization, to absorb heat from the surrounding, plays the role of cooling.Therefore, the main extinguishing principle of carbon dioxide fire extinguisher is the action of suffocation and cooling.
When the CO2 fire extinguisher is made, the liquid carbon dioxide is compressed into the small cylinder of the fire extinguisher under pressure, and then is sprayed out when the fire is put out.
