What are the fire extinguishing methods and fire extinguishing knowledge?

1. Solid fires should be extinguished with water-type, foam, phosphate amine dry powder, and halide type fire extinguishers.

2. Liquid fires should be extinguished with dry powder, foam, halide alkanes, and carbon dioxide fire extinguishers.

3. Gas fires should be extinguished with dry powder, halide alkanes, and carbon dioxide fire extinguishers.

4. The fire of charged objects should be extinguished with halides, carbon dioxide and dry powder fire extinguishers.

5. The fire extinguishing equipment for fighting metal fires should be negotiated by the design department and the local public security fire supervision department.

6. The use of fire extinguishers and fire extinguishing methods can be referred to"How to use the fire extinguisher"。

1. Isolation method: Isolate or remove the burning place or object from the surrounding combustibles, and the combustion will stop due to the lack of combustible substances. In practical use, such as removing combustible, flammable and combustible items that can be close to the fire source; Move the burning object to a safe place; Close the valves of combustible gas and liquid pipelines to reduce and stop combustible substances from entering the combustion area, etc.

2. Suffocation method: prevent the air from flowing into the combustion area or dilute the air with non-combustible substances, so that the combustion materials cannot get enough oxygen and extinguish. Practical application is time, such as covering objects with non-combustible or refractory substances such as asbestos blankets, wet sacks, yellow sand, fire extinguishers, etc.; Closed cabins, doors and windows of buildings, holes, etc., and the top cover of equipment containers, suffocating the combustion source.

3. Cooling method. Spraying the extinguishing agent directly onto the combustibles; to reduce the temperature of the combustible. When the temperature of the combustible material is lowered below the ignition point of the combustible substance, the combustion stops. Or spray the extinguishing agent on the combustible material near the fire source to prevent the influence of radiant heat**.

Here are the four basic ways to extinguish a fire.

1. Isolation and fire extinguishing method.

It is to isolate or remove the combustible material at or around the source of the fire, and the combustion will stop due to the lack of combustibles. For example, the combustible, flammable, explosive and combustible materials near the fire source are removed; Close the valves of combustible gas and liquid pipelines to reduce and prevent combustible substances from entering the combustion zone; try to block the liquid that has flowed; Demolition of flammable buildings adjacent to the fire source, etc.

2. Suffocation fire extinguishing method.

It is to prevent the air from flowing into the combustion zone or dilute the air with non-combustible substances, so that the combustion substances do not get enough oxygen and are extinguished. If the combustible material is covered with non-combustible or non-combustible material; equipment for filling containers with water vapor or emotional gases; Closed holes in buildings, equipment, etc.

3. Cooling fire extinguishing method.

It is to spray the fire extinguishing agent directly on the combustible material to increase the heat dissipation, reduce the temperature of the burning material below the ignition point, and stop the combustion; Alternatively, the extinguishing agent is sprayed on an object near the source of the fire so that it is not threatened by the radiant heat of the flame and avoids the formation of a new fire.

4. Inhibition fire extinguishing method (chemical fire extinguishing method).

It is to make the fire extinguishing agent participate in the combustion reaction process, so that the free radicals produced in the combustion process disappear, and the formation of stable molecules or low activity free radicals, so that the combustion reaction stops due to the lack of free radicals.

Isolate or remove the burning place or object from the surrounding combustibles, and the combustion will stop due to the lack of combustible substances.

Cover the object with asbestos blankets, wet sacks, yellow sand, fire extinguishers, etc., non-combustible or non-combustible substances, and close the cabin of the ship.

The doors, windows, holes, etc. of the building and the top cover of the equipment container suffocate the combustion source, and the fire extinguishing agent is sprayed directly on the combustion material to reduce the temperature of the combustible, and when the temperature of the combustion material is reduced below the ignition point of the combustion, the combustion stops.

The combustion is stopped by spraying a chemical extinguishing agent into the combustion zone to participate in the chemical reaction of combustion.

There are four basic methods of fire extinguishing: isolation method, suffocation method, cooling method, and suppression method.

1.Isolation method: Isolate the burning place or object from the surrounding combustibles.

2.Suffocation: Stops the flow of air into the burning area or dilutes the air with a non-combustible substance.

3.Cooling method: The extinguishing agent is sprayed directly onto the combustion material to reduce the temperature of the combustible.

1.Cooling method: spray the fire extinguishing agent directly onto the combustible material to reduce its temperature below the ignition point and stop the combustion.

2.Isolation method: Isolate the ignition source from the surrounding combustible substances to stop burning.

3.Asphyxiation method: prevent the air from flowing into the combustion zone or dilute the air with non-combustible substances so that it does not have enough oxygen and extinguishes;

4.Interrupt the chemical reaction method: make the fire extinguishing agent participate in the combustion reaction process, so that the free radicals produced by it disappear.

Cooling fire extinguishing method, suffocation fire extinguishing method, isolation fire extinguishing method, inhibition fire extinguishing method, etc.

Cooling fire extinguishing, suffocation fire extinguishing, isolation fire extinguishing, etc.

Wet cloth: When the kitchen fire first starts, you can use wet towels, wet aprons, wet rags, etc. to directly cover the flame and suffocate the fire. Pot lid:

When the cooking oil in the pot catches fire due to high temperature, do not pour it with water, because once the water is poured, the burning oil will splash out and ignite other combustibles in the kitchen. The correct way to do this is to first turn off the air source, then quickly close the lid of the pot and extinguish the fire with the suffocation method. If you don't have a lid, pouring the cut vegetables into the pot or pouring cold oil from the side can also extinguish the fire.

The first is to use standard fire extinguishing equipment to extinguish fires, such as fire hydrants, fire felts, and fire extinguishers.

The second is to use convenient equipment to extinguish fires, such as wet quilts, pot lids when on fire, flammable materials with water, and oil fires with sand covering.

Summary. The basic methods of extinguishing fire are as follows:

Cooling fire extinguishing method.

Suffocation fire extinguishing method.

Isolation fire extinguishing method.

Inhibition of fire extinguishing methods. Learn some necessary fire extinguishing methods to better save yourself or extinguish the fire in the event of a fire.

What are the common fire extinguishing methods.

The basic methods of fire extinguishing are as follows: cooling fire extinguishing method. Suffocation fire extinguishing method. Isolation fire extinguishing method. Wu Chan which inhibits the fire extinguishing method. Learn some necessary cavity code fire extinguishing methods, so that you can better save yourself or extinguish the fire in the event of a fire.

Take a look.

1.Cooling fire extinguishing method.

It is a preventive method to spray the fire extinguishing agent directly on the combustible, so that the temperature of the combustible material is reduced below the spontaneous ignition point, so that the combustion is stopped, and the combustible substance that has not yet been burned is cooled with water to prevent it from reaching the ignition point and catching fire. The main function of using water to extinguish a fire is to cool and extinguish the fire.

2.Suffocation fire extinguishing method.

Combustible substances cannot be burned in the absence of air or with an oxygen content of less than 14%. The so-called suffocation method is to cut off the air supply to the combustible material.

It is suitable for extinguishing fires in enclosed spaces, production equipment and containers by taking appropriate measures to prevent air from entering the combustion zone, or diluting the oxygen content in the air with inert gas, so that the combustion substance is deprived of oxygen or extinguished. When the suffocation method is used to extinguish the fire on the fire ground, non-combustible or incombustible materials such as asbestos quilts, wet sacks, wet quilts, sand, foam can be used to cover the burning or seal the holes, fill the burning area with water vapor and inert gas, and use the original doors on the building and the parts on the production, storage and transportation equipment to close the combustion area and prevent air from entering.

3.Isolation fire extinguishing method.

Combustibles are one of the most important combustion conditions, and if they are isolated from the ignition source or air, the combustion reaction will automatically stop. For example, the method of spraying fire extinguishing agent to isolate combustibles from air and heat, covering the surface of burning liquid or solid with foam fire extinguishing agent to extinguish the foam, and separating combustibles from flame and air, etc., all belong to the isolation fire extinguishing method.

There are many specific measures to isolate and extinguish fires. For example, transfer flammable and explosive substances near the fire source to a safe place, close the valves on equipment or pipelines, prevent combustible gases and liquids from flowing into the combustion area, dismantle flammable building structures adjacent to the fire source, and form a space zone to prevent the spread of fire.

4.Inhibition of fire extinguishing methods.

A chemical extinguishing agent is injected into the combustion zone to participate in the combustion reaction, so that the chain reaction of the free radical (combustion chain) is stopped, so that the combustion reaction is stopped or cannot be sustained. The fire extinguishing agents that can be used in this method are dry powder and halide fire extinguishing agents. When extinguishing the fire, a sufficient amount of fire extinguishing agent should be accurately sprayed into the combustion area to block the combustion reaction, and cooling measures should be taken to prevent re-ignition.

1. Coverage:The method of extinguishing the fire by isolating the contact surface between combustibles and air through tools such as fire-fighting sand and water-stained quilts;

2. Isolation:For the fire that can no longer be controlled, the fire can be controlled by isolating nearby combustibles; Commonly seen in forest firefighting;

3. Cooling:The common method is to extinguish the fire with water, and the fire brigade often uses high-pressure water cannons to spray the flame to control the fire; Fire extinguishers such as foam fire extinguishers can also be used to extinguish the fire.

Initial fire extinguishing principle.

In life, we can encounter fires at any time, and once we encounter a fire, whether it is at home, at school, or in a shopping mall, there are only three things we have to do:

Call the police in time, and after discovering the fire, you should send out an alarm in time to notify others. In this way, you can not only arouse the vigilance of others and take measures in time, but also seek help from others, which is conducive to extinguishing the fire as soon as possible. When notifying others, you can shout out loud"It's on fire"If you can't shout because you're nervous, you can hit pots, bowls, basins, and other things that make a noise to attract the attention of others.

While notifying others, you should also call the police in time. Because the development of fires is often unpredictable, different fire sources should be put out differently. If the extinguishing method is not done properly, it can cause an uncontrollable fire. Therefore, if you find a fire, you should call the police in time.