How to put out the initial fire in the hotel

The following are the basic methods, which are applicable to fires in most cases.

First, cooling method: reduce the temperature of combustible materials below the ignition point.

The principle of this fire extinguishing method is to spray the fire extinguishing agent directly on the burning object, so that the combustion temperature is reduced below the ignition point and the combustion is stopped. Or spray the fire extinguishing agent on the substance near the fire source, so that it will not form a new ignition point due to the thermal radiation of the flame. Cooling fire extinguishing method is a main method of fire extinguishing, and water and carbon dioxide are often used as fire extinguishing agents to cool down and extinguish the fire. The extinguishing agent does not participate in the chemical reaction in the combustion process. This method belongs to the physical fire extinguishing method.

Second, isolation method: separate combustible materials from combustion improvers and fire sources.

Isolation fire extinguishing method is to isolate or remove the burning substances from the unburned combustible substances around, interrupt the supply of combustible substances, and stop burning because of the lack of combustible substances. Specific methods are:

1. Remove inflammable, explosive and combustion-supporting articles near the fire source;

2. Close the valves of combustible gas and liquid pipelines to reduce and prevent combustible substances from entering the combustion zone;

3. Try to prevent scattered flammable and combustible liquids;

4. Dismantle flammable buildings adjacent to the fire source to form a space to prevent the fire from spreading.

3. Asphyxiation method: diluting and interrupting the supply of oxygen (air).

Asphyxiation fire extinguishing method is to prevent air from flowing into the combustion zone, or dilute the air with non-combustible substances, so that the combustion products can not get enough oxygen and go out.

The specific method is:

1. Cover flammable materials with sand, cement, wet sacks and wet quilts.

2. Spray atomized water, dry powder, foam and other fire extinguishing agents to cover combustible materials;

3, with steam or nitrogen, carbon dioxide and other inert gases perfusion fire-fighting containers, equipment;

4, closed fire buildings, equipment and holes;

5. Spray nonflammable gas or nonflammable liquid (such as carbon dioxide, nitrogen and carbon tetrachloride). ) into combustible areas or on combustible materials.

Fourth, chemical inhibition method: the chain reaction of destroying combustion.

Suppression fire extinguishing method is to inject fire extinguishing agent into the combustion zone to participate in the combustion reaction, and stop the combustion reaction by preventing the chain reaction. The fire extinguishing agent that can be used in this method includes dry powder and haloalkane fire extinguishing agent. When putting out the fire, sufficient fire extinguishing agent should be injected into the combustion area accurately to prevent combustion reaction, and necessary cooling measures should be taken to prevent re-ignition.