China release 丨 The bright fire field of the Big and Laoshan District of Chongqing and Laoshan District all extinguish the forest fire science popularization "to extinguish the fire"

China Net, August 26th, since August 18, due to the continued high temperature and drought, Jiangjin, Dazu, Tongliang, Banan and other districts in Chongqing have successively occurred in mountain forest fires. The two levels of the urban area quickly launched the emergency plan, and a total of more than 5,000 professional rescue teams, forest fire, armed police forces, fire rescue and local cadres and the masses of professional rescue teams at the two -level emergency bureaus of the urban area were extinguished. The fire extinguishing the fire in the air, a total of more than 1,500 people in the masses. It is understood that this year is the worst and extremely high temperature weather in Chongqing in 1961.

According to many departments such as the Chongqing Municipal People's Government News Office and Yunnan Forest Fire Corps, 736 forest firefighters in Yunnan Forest Fire rushed to Chongqing on August 24th. As of 19:00 on August 25, the junction of Banan District, Wanzhou District, Qianjiang District, Tongnan District, Dazu District and Tongliang District, Fengdu County, Yunyang County Minghuo has been extinguished one after another, no casualties, no cause of injuries, not caused, did not result Important facilities are damaged.

At 23:00 on August 25, the fire in Xiema Street, Beibei District was effectively closed. At 8:30 on August 26th, after the rescue force of all parties, the fire field of Beibei District and Laoshan District was extinguished. The participating teams are cleaning up in depth. After 72 hours after the fire, the inspection work is carried out in an orderly manner, and the forest fire prevention sealing is continued. At present, the order of life in the fire -related area is gradually recovering. The specific reasons for the fire and overfire are under investigation.

When the forest firefighters saves the forest fire, it is sometimes used by a special fire extinguishing method according to the situation at the scene, which is called "attacking the fire", which plays an important role in the extermination of the Beibei mountain fire.

According to the popular science of the Forest Fire Bureau of the Emergency Management Department, the principle of using the "extinguishing fire with fire" is mainly the oxygen required by the burning of the mountain fire, causing insufficient oxygen to extinguish the fire. The fire will generate up the airflow when the fire spreads, so that the airflow in other directions will flow over and form a wind. In the opposite direction of the fire (the front of the fire spreads in front of the fire), the two fires will run in one direction and eventually meet. Because the two fires can be burned around, at the same time, the oxygen is exhausted in the middle of the fire, and the fire goes out. This method is generally used in the case where wind is not very large. If the wind is large, the effect will be counterproductive. Pay attention to the distance between the ignition point and the fire zone. Too far is equivalent to setting fire, too close to help burning, and pay special attention to the wind direction.

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