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1.Hit 119At the same time, use fire extinguishing gas.
2.If there is no fire to extinguish the fire, water or sand is used to extinguish the fire.
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Walk to the clearing, = firefighters come to the rescue.
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Fix a sentence for help, and then repeat it on the radio n times, and then if there is a fire, speak these fixed languages, so that the students will understand what is happening.
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The fire fighting method is as follows:
1. Electrical appliances should be quickly unplugged and cut off the power supply to prevent electric shock when extinguishing the fire. Wrap appliances in non-breathable items such as quilts and blankets to keep out the air. Use a fire extinguisher to extinguish the fire, and the fire extinguishing agent should not be directly shot at the phosphor screen and other parts to prevent thermal expansion and contraction.
2. Generally, you can use a fire extinguisher to spray directly to the fire source; Or pour water on the burning item, or cover it with a blanket and pour some water, after the fire is extinguished, still water more to cool it down and prevent it from re-ignishing.
3. Fixed office furniture is on fire, and if you find fixed office furniture, you should quickly remove the combustible and flammable items next to it, and if you have a fire extinguisher, you can pick up the fire extinguisher and spray it at the burning furniture. If you don't have a fire extinguisher, you can use buckets, basins, etc. to put out the fire in the bud.
4. Watering is most effective when the curtain fabric is on fire, and water should be splashed in an arc above the flame. Or slap the flame with a soaked broom. If you can't extinguish the fire with water, you can tear off the curtain and step on it with your feet.
5. Close the valve quickly when the gasoline gas catches fire, and immediately extinguish the fire with a fire extinguisher. When there is no fire extinguisher, either use sand to extinguish it, or soak the blanket and cover the burning object, but do not pour water on it, otherwise the oil floating on the water surface will continue to burn, and with the water spreading everywhere, expand the burning area, endangering the surrounding safety.
6. The fire of alcohol solution can be extinguished with sand, or covered with soaked sacks, quilts, etc. If there is an anti-solvent foam fire extinguisher, it can be used to extinguish the fire. This is because even if ordinary foam is sprayed on alcohol, it cannot form a layer of foam on the surface of the alcohol that can keep out the air.
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Fire fighting methods include cooling fire extinguishing method, suffocation fire extinguishing method, isolation fire extinguishing method and suppression fire extinguishing method.
1. Cooling and fire extinguishing methods
Spray the fire extinguishing agent directly on the combustibles to reduce the temperature of the combustibles below the spontaneous ignition point, so that the combustion stops; A preventive method to cool a combustible substance that has not yet been burned with water to prevent it from reaching its 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 an air uproar or an oxygen content of less than 14% in the air. 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, and foam can be used to cover the burning or seal the holes.
3. Isolation and 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, moving flammable and explosive substances near the source of fire to a safe place; Close the valves on the equipment or pipelines to prevent combustible gases and liquids from flowing into the combustion zone; Demolition of flammable structures adjacent to the source of the fire and the creation of a space to prevent the spread of the fire.
4. Inhibit fire extinguishing method
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.
Principles of fighting on the fire ground:
1. Timely rescue, time first. Fires are ruthless, and small fires will evolve into large fires if they are not remedied in time, so it is necessary to extinguish the fire as soon as it is discovered, prevent it from developing and expanding, and reduce losses and injuries.
2. Life first, save people first. Money is something outside the body, you can earn it again if you lose it, and if you lose your life, you really don't have it. Life is paramount, and the fundamental purpose of fighting fires is to save people, and saving people is always in the first place.
3. There are thousands of things, and disaster relief comes first. There are thousands of things, and once there is a disaster, we must move closer to disaster relief.
4. Natural and man-made disasters, prevention first. Natural and man-made disasters occur from time to time, and losses and injuries cannot be stopped. The ancients said that born in sorrow and died in peace. We need to take precautions before they happen.
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1. The basic measures of fire prevention: control combustibles, isolate the air, and eliminate the source of fire (some also have the measure of "preventing the spread of fire") 2. The basic method of fire extinguishing: cooling method, suffocation method, isolation method, inhibition method 3. The cooling method is to take measures to reduce the temperature of the burning material to below the ignition point (potato burning point) to stop the combustion.
The main extinguishing mechanism of asphyxiation fire extinguishing is to reduce oxygen concentration. Carbon dioxide fire extinguishing agents mainly rely on asphyxiation and partial cooling to extinguish fires. The method of extinguishing a fire by filling the burning space with inert gas, water vapor, etc., is called the asphyxiation method.
A method of extinguishing fires, such as covering a combustible substance threatened by fire with a non-combustible or non-combustible object, is called the isolation method.
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1. First of all, if it is a solid matter fire, such as wood and hay fire. Water-type fire extinguishers, foam fire extinguishers, ammonium phosphate dry powder fire extinguishers, and halide fire extinguishers can be selected.
2. Secondly, for the fire of cooking objects (such as animal and vegetable oils) in cooking utensils. A dry chemical fire extinguisher is optional.
3. For liquid or meltable solid matter fire. Such as kerosene, diesel, plastic and other fires. Foam fire extinguishers (chemical foam fire extinguishers are limited to extinguishing non-polar solvents), dry powder fire extinguishers, halide fire extinguishers, and carbon dioxide fire extinguishers.
4. For live fires. A fire in which an object burns with electricity. You can choose dry powder Fengsheng fire extinguisher, halide fire extinguisher, carbon dioxide fire extinguisher, etc.
Live fires include household appliances, electronic components, electrical equipment (computers, copiers, printers, fax machines, generators, motors, transformers, etc.) and wires and dust cables that are still charged when burning, while fires that occur when the daily lighting fixtures and equipment that can cut off the power supply on the top and wall should not be included in the scope of live fires.
1. When a fire breaks out in the car engine, the driver should stop quickly, let the passengers open the door and get out of the car by themselves, then cut off the power supply, remove the fire extinguisher on the vehicle, and spray the flame on the front of the fire to extinguish the flame. >>>More
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There are generally the following types of fires: >>>More
Generally within 15 minutes, this is the best time to extinguish the fire. Beyond this time, the fire will be difficult to extinguish.
The method is dead, the person is alive, the environment is different, the scheme is different. >>>More
1. Rational use of fire extinguishing tools.
If there are some fire extinguishing tools around us, then we also need to make reasonable use of them, for example, if we have a fire extinguisher around us, we must bring the fire extinguisher when escaping, and if we encounter a fire blocking our road in the process of escape, we can use a fire extinguisher to escape while extinguishing the fire, of course, if there is no fire extinguisher, the use of water and fire sand is also possible. >>>More