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建筑物等发生火灾时,可燃性的建筑材料不移动,在原处燃烧。在这种所谓定点火灾的情况下,可以通过喷射水雾或水流,使着火点的温度下降,最终达到灭火的目的。 可是,当可燃性液体着火时,也就是在所谓流动性火灾的情况下,喷射水雾或水流都难以将火扑灭,若用化学药品灭火,由于药品的化学反应,可能会引起其它的不良作用,所以仍不能算作是一种理想的灭火方法。
Building and other fires, flammable building materials do not move, burning in place. In the case of such a so-called fixed-point fire, the temperature of the ignition point can be lowered by spraying water mist or water, finally achieving the purpose of extinguishing fire. However, when a flammable liquid is ignited, that is, in the case of a so-called liquidity fire, it is difficult to extinguish the fire by spraying water mist or mist. If a chemical is used to extinguish a fire, other adverse effects may be caused due to the chemical reaction of the chemical , So still can not be counted as an ideal method of fire fighting.