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Fire accidents i...
I. Causes of Petrochemical Fire Accidents Fire accidents in chemical enterprises usually result from the large-scale loss of toxic and harmful gases (or liquids). Due to their high toxicity, easy diffusion and flammability and explosiveness, they can easily cause large-scale pollution in the accident area and a large number of casualties, which is particularly serious in densely populated large and medium-sized cities. The main reasons for the occurrence of chemical fire accidents are as follow
The fire extingu...
The fire-extinguishing mechanism of foam fire extinguishing agents mainly involves cooling and suffocation. That is, a continuous foam layer is formed on the surface of the burning material. The surface of the burning material is cooled by the foam itself and the mixed liquid it precipitates, and the covering effect of the foam layer isolates the burning material from oxygen to extinguish the fire.
How do chemical ...
With the consistent attention paid by the state and the people to fire protection work, the types of fire extinguishing agents equipped by China's fire brigades are increasing. Among them, the most commonly used ones can be roughly divided into five major categories and more than ten varieties. The performance of different types and kinds of fire extinguishing agents varies. Blind use may lead to counterproductive results and greater losses. Therefore, when using it, firefighters will make the c