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灭火的四种基本方法
编辑:澳门官方网站平台  更新时间:2015-09-14 11:40:36
1.冷却法。将灭火剂直接喷洒到燃烧物上,通过吸热降温,使燃烧物的温度降低到燃点以下,使燃烧停止;或者将灭火剂喷洒到火源附近的物体上,使其不受火焰辐射热的威胁,避免形成新的火点使火灾进一步蔓延。冷却法是灭火的主要方法,常用水和二氧化碳冷却降温灭火。
 
1 cooling method. Fire agent sprayed directly onto the burning object, through the heat absorbing cooling, the combustion temperature is reduced to below the ignition point and combustion stop; or will fire extinguishing agent is sprayed onto the object near the fire source, from the flame radiation heat of the threat, to avoid the formation of the new fire point so that the fire further spread. Cooling method is the main method of extinguishing fire, common water and carbon dioxide cooling cooling.
 
2.隔离法。燃烧的条件之一是必须有可燃物,扑救火灾时要把着火的物质和周围未燃烧的物质隔离开。如关闭可燃气体、液体管理的阀门,阻止可燃物质进入燃烧区;拆除与火源相临的易燃建筑物,造成阻止火势蔓延的空间地带;将火源附近的可燃、易燃、易爆和助燃的物品搬走;设法阻挡流散的易燃可燃液体等。
 
2 isolation method. One of the conditions of combustion is that there is a need to have a combustible, a fire to put on the fire and the material around the non combustion of the material to leave. Such as closing valve of combustible gas and liquid management, prevent combustible substances into the combustion zone; demolition and fire are near flammable building, resulting in the spatial area to prevent the fire from spreading; near the fire source of combustible, flammable, explosive and combustion supporting items removed; trying to stop the diaspora for flammable and combustible liquids.
 
3.窒息法。可设法隔绝空气或稀释燃烧区的空气含氧量,使可燃物得不到足够的氧气而熄灭。如用不燃物或难燃物捂盖燃烧物;用水蒸气或惰性气体灌注容器设备;封闭起火的建筑、设备的孔洞;把不燃的气体或液体喷洒到燃烧物上,或用泡沫覆盖燃烧面使之得不到新鲜空气而窒息等。
 
3 asphyxia method. Can try to cut off the air or the oxygen content of the combustion zone, so that the fuel can not get enough oxygen to extinguish. Such as the use of non flammable or refractory material to cover the burning material; water vapor or inert gas filling container equipment; closed the burning building, equipment holes; the non flammable gas or liquid is sprayed onto the burning object, or foam covering the burning surface to lack of fresh air and suffocate.
 
4.抑制法。将有抑制作用的化学灭火剂喷入燃烧区参与燃烧反应,中止燃烧。如1202、1211、1301灭火剂均属于有抑制作用的灭火剂。
 
4 inhibition method. The chemical fire extinguishing agent which has the inhibition effect is sprayed into the combustion zone to participate in the combustion reaction, and the suspension is suspended. Such as 1202, 1211, 1301 fire extinguishing agents are a fire extinguishing agent.
 
扑救火灾时,具体要采取哪一种方法灭火,应当根据燃烧物质的性质、状态、燃烧特点和火场的具体情况以及灭火器材装备的性能等来确定。
 
Fire suppression, specifically to take which a fire shall be determined according to the burning material nature, status, combustion characteristics and fire and fire extinguishing equipment performance.
 
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