According to the principle of combustion, the principle of extinguishing method is to destroy all agent direct injection to the burning object or material spray near the fire extinguishing agent, so that they don't form a new point for flame thermal radiation effects.
Folding cooling extinguishing method.
he principle of this method is to spray the extinguishing agent directly into the burning object to reduce the burning temperature. Cooling fire extinguishing method is a main method of fire extinguishing. Water and carbon dioxide are used as extinguishing agent to cool down the fire. The extinguishing agent does not participate in the chemical reaction during the fire fighting. This method is a physical extinguishing method.
olding isolation extinguishing method.
The method of isolating the fire is to isolate or remove the burning material and the combustible material around it, to suspend the supply of combustible material and to stop the burning for lack of combustible material. Specific methods:
1. Remove combustible, inflammable, explosive and combustible materials near the ignition source;
2. Close the valve of combustible gas and liquid pipe to reduce and prevent combustible material into the combustion zone;
3. Try to obstruct the flow of flammable and combustible liquids;
4. Remove flammable buildings adjacent to the ignition source and form a space to prevent the fire spreading.
Folding smothering method.
Smothering method is a method to prevent the air from flowing into the combustion zone or to use non-combustible area or to dilute the air with non-combustible material so that the burner can not get enough oxygen to extinguish the fire extinguishing method. The specific method is:
1. Use sand, cement, wet sack, wet cotton and other non-combustible or non-combustible materials to cover the burners;
2. Spray mist water, dry powder, foam and other fire-extinguishing agent to cover the burners;
3. Containers and equipment for fire with water vapor or nitrogen, carbon dioxide and other inert gases;
4. Sealed fire buildings, equipment and holes;
5. Spray non-combustible gas or non-combustible liquids (such as carbon dioxide, nitrogen, carbon tetrachloride, etc.) into the combustion area or combustor.