Carbon dioxide fire extinguisher use method and precautions
The use of carbon dioxide fire extinguishers
Of course, it must be carbon dioxide fire extinguishing gas, and different fire extinguishers are also different.
Take a look at the name on the label above. In addition to carbon dioxide fire extinguishers, dry powder fire extinguishers and water-based fire extinguishers are common, and we must look at the types of fire extinguishers to choose the appropriate method to extinguish the fire.
Then we understand the working principle of the fire extinguisher: the carbon dioxide fire extinguisher is mainly the liquid carbon dioxide stored in the cylinder when the fire is put out, it can spray out the carbon dioxide gas, thus vaporizing and releasing heat, playing a cooling role, and can also isolate the air
Scope of application of carbon dioxide fire extinguisher: Because carbon dioxide fire extinguisher will not leave any traces to damage the object, it can be used to extinguish books, files and other precision items. So the library or archive room is generally prepared with carbon dioxide fire extinguishers.
Avoid two points
1. Remove the safety pin before use
2. Press down on the handle and shoot at the root of the flame
Carbon dioxide fire extinguishers are mainly used to save valuable equipment, archives, instruments, electrical equipment below 600 volts and the initial fire of oil. When in use, the fire extinguisher should first be brought to the fire site, put down the fire extinguisher, pull out the safety pin, hold the handle at the base of the horn with one hand, and grasp the pressure handle of the valve with the other hand. For carbon dioxide fire extinguishers without spray hoses, the noisy drum should be turned up 70-90 degrees. When using, do not grasp the outer wall of the horn or the metal connection pipe directly with your hand to prevent your hand from being frostbitten. When using carbon dioxide fire extinguishers, those used outdoors should choose the upwind direction of injection; If used in a narrow space indoors, the operator should leave quickly after extinguishing the fire to prevent the room from breathing
Precautions for using carbon dioxide fire extinguishers
When using carbon dioxide fire extinguishers, those used outdoors should choose to spray in the upwind direction, and the hand should be placed on the wooden handle of the cylinder to prevent frostbite. If used in a narrow space indoors, the operator should leave quickly after extinguishing the fire to prevent the room from breathing
Others: The wheeled carbon dioxide fire extinguisher is generally operated by two people, when using two people together to push or pull the fire extinguisher to the burning place about 10 meters from the combustion stop, one person quickly take off the horn and expand the spray hose, hold the handle at the root of the horn, the other person quickly rotate the hand wheel in the counterclockwise direction, and open to the maximum position. The fire extinguishing method is the same as the hand-held method.
