The principle of co2 fire extinguisher
Carbon dioxide has a high density, about 1.5 times that of air. Under normal pressure, the liquid carbon dioxide will vaporize immediately, generally, 1kg of liquid carbon dioxide can produce about 0.5 cubic meters of gas. When working, when pressing the pressure of the bottle valve, the internal carbon dioxide extinguishing agent will be sprayed out from the siphon tube through the bottle valve to the spray barrel, the carbon dioxide gas can exclude the air and surround the surface of the burning object or distributed in a more confined space, reducing the oxygen concentration around the combustible object or in the protective space, when the carbon dioxide reaches sufficient concentration, the flame will be suffocated and extinguished. In addition, when carbon dioxide is ejected from the storage container, it will quickly vaporize into a gas from the liquid, and absorb some heat from the surrounding area to play a cooling role. Push the cart-type co2 fire extinguisher mainly by the bottle, the head assembly, nozzle assembly, frame assembly, and other parts in the composition, the fire extinguishing agent is contained in the liquid carbon dioxide extinguishing agent.