Types and range of fire extinguishers?

Types and range of fire extinguishers?

1211 fire extinguisher, 1kg effective range 2.5m, 2-3kg range 3.5m, 4kg range 4.5m, time is 8 seconds. "1211" cart effective range: 25kg, range 8m, time 20 seconds, 40kg range 8m, time 25 seconds.

1211 fire extinguisher is a highly effective extinguishing agent. The utility model has the advantages of no pollution, no traces, and the utility model is especially suitable for fire fighting precision instruments, electronic equipment, archives of cultural relics and fire. Its principle of extinguishing fire is also a chain reaction to restrain the continuous burning, and it is also suitable for fighting oil fire.When in use, you must pull out the safety pin first, then hold the pressure switch, that is, the medicine is ejected. When in use, the fire extinguisher body should be vertical and can not be placed flat and upside down. Its range is close to, spray on the windward side, close to the fire, to fire the root of fire, to move forward, to pay attention to prevent back again."1211" fire extinguisher every three months to check the nitrogen pressure, each half a year to check the weight and pressure, and if the weight of the drug reduced by 10%, should be re inflated, filled with drugs.

Carbon dioxide extinguisher is carbon dioxide gas stored at high pressure in the air cylinder as the fire extinguishing agent, carbon dioxide fire after leaving no trace, suitable for fighting large equipment, archives, computer room fire, it is also suitable for conducting extinguishing electrified low voltage electrical equipment and oil fire, but it is not available for K sodium, magnesium, aluminum, and other material fire.

At present, the main chemical foam, the future development of air foam, foam can cover the surface of the combustion, to prevent air entry. It is most suitable for fighting liquid fires, and can not fire water soluble flammable and flammable liquids (such as alcohols, esters, ethers, ketones, etc.) and electrical fires.When using, use the finger to block the nozzle, turn the cylinder upside down two times, then there is the foam to eject. Oil fire can not be injected into the center of the oil surface, in order to prevent the ignition of the oil base out, along the edge of the root of the fire to the upper side of the jet, and gradually covered the oil surface, put out the fire. When in use, the cylinder bottom cover can not be facing the human body, just in case of danger.

1, dry powder storage type fire extinguisher (portable) is to use nitrogen as the driving force, the powder in the barrel extrusion. Suitable for fighting petroleum products, paint and organic solvent fire. It can suppress the chain reaction of fire and extinguish fire. Also suitable for extinguishing liquid, gas, electrical fire (dry powder has more than 50 thousand volts of electrical insulation performance). Some can also fight solid fires.2, powder cart is used, the fire extinguisher trolley quickly pushed to the fire nearby, pull out the spray hose and straightening, pull out the pin and open the valve handle straight, at the bottom of flames, the pink mist swept key flame, pay attention to cut off the fire, fire control flame back from near and far forward.3, dry fire extinguisher (MFZ) 2-3kg effective range of 2.5m, 4-5kg range of 4m, time 8-9 seconds. 8kg range of 5m, time 12 seconds. (MFTZ) 35-50kg cart with an effective range of 8m and time of 20 seconds. 70kg cart range 9m, time 25 seconds.