Extinguishing the initial fire will reduce the fire damage and prevent fire casualties. Fire early stage, small burn area, fire is weak, if they can take the right fighting method, will quickly put the fire out before the formation of the disaster. According to statistics , more than 70% of the fires that occurred in the past were extinguished by people present at the beginning of the fire. We should eliminate the fire in the bud.
First, the beginning of the fire fighting procedures
1) Control first and then exterminate. For a fire that cannot be extinguished immediately, it is necessary to first control the spread and expansion of the fire , and then eliminate fire on the basis of this. For example , after the gas pipeline catches fire , it is necessary to quickly close the valve , cut off the gas source , block the loophole , prevent the gas from spreading , and at the same time protect the other facilities that are threatened by the fire. When the fire at one end of the building spreads to the other end , it should be controlled from the appropriate part in the middle. The first control and the later elimination are closely linked in the process of fire fighting and cannot be completely separated. Especially for fighting an initial fire , to control the development of fire and eliminate the fire , there is no fundamental boundary between the two , which is almost at the same time. The principle should be used flexibly according to the situation of the fire and its own strength.
2) Saving people is more important than fire. When someone on the fire is surrounded by fire , the first thing to do is to rescue people from the fire , that is, to save people is better than to save fire. Disaster practice, according to personnel and the fire situation, rescue and fire fighting at the same time, it must not be adversely affected because of the fire and save time.
3) The first priority , after the initial general fire fighting , to comprehensively understand and analyze the situation of the fire field , distinguish between key and general. In many cases, on the fire, and the general emphasis is relative, in general, to distinguish the following situations: people is more important than substance; precious materials more important than general goods; the fire spread rapidly slow the heart is more important than the spread of fire zone; explosive, toxic The risk of collapse is more important than that without these hazards; the wind direction in the fire field is more important than the wind direction in the fire; flammable , combustibles are concentrated in areas where there are fewer such items; critical areas are heavier than non-critical areas.
4) Fast , accurate , and coordinated operations The more quickly the fire starts , the more accurate it is to get close to the fire point and early to extinguish the fire . The more favorable it is to grab the fire before the fire spreads , and eliminate the fire. Coordinated operations refer to all organizations that fight fires , and individuals collaborate with each other and work closely together .
Second, the basic fire fighting method
1) is connected to a combustible fire removal and isolation method, flammable building; water curtain forming or preventing the spread of fire isolation zone, the combustion zone which separates the unburned. In the premise of ensuring safety, combustible inside the device or fire inside the container of flammable liquid, gas emissions, in addition to vent, transferred to safe areas.
2) Cooling method Use water guns , fire extinguishers, etc. , and spray the fire extinguishing agent such as water into the combustion zone , and directly apply it to the combustion to cool it off; spray the coolant to other unburnt combustibles or buildings adjacent to the combustion. Cool on to prevent the spread of fire. ; Construction element cooled with water, producing means or the container to prevent heat deformation or explosion. 3) Asphyxiation fire extinguishing method Covers the surface of the burning material with non-flammable or flame-retardant substances such as wet cotton quilts , wet sacks , and asbestos blankets; when a fire occurs in a more closed room , all doors and windows in the burning area , holes , and air and other combustibles are prevented. Enter and wait until the oxygen is consumed to make it self-extinguish.
The information in this article comes from the Internet and was reorganized and edited by China Rescue Equipment Network.
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