Fire extinguishing grenade used for city building fire

Abstract

The invention discloses a fire extinguishing grenade used for a city building fire. The fire extinguishing grenade comprises an outer shell and a detonator. The outer shell is sequentially filled witha fire extinguishing object and a thermal insulation and flame resisting material from interior to exterior. The fire extinguishing object is arranged in the center of the shell and communicates withthe detonator. The fire extinguishing object comprises TNT and a fire extinguishing agent, wherein the fire extinguishing agent is white phosphorus or dry powder. The fire extinguishing grenade can be suitable for the city building fire with life entities and without life entities, the detonator is used for igniting the TNT for explosion, after the TNT is detonated, the white phosphorus or dry powder can be injected with extremely large explosive force to form a fog shape to be spread to the building on fire, the white phosphorus is spread and subjected to spontaneous combustion, oxygen is used for achieving fire extinguishing, dry powder dust can fall outside the surface of a combustible, a chemical reaction happens, a glass-shaped covering layer is formed under the high-temperature effect, and therefore oxygen is isolated, and stifled fire extinguishing is conducted; and meanwhile, huge air shock waves caused by TNT exploding can also be used for achieving the fire extinguishing effect.

Description

technical field [0001] The invention belongs to the technical field of fire protection, and in particular relates to a fire extinguishing grenade used for urban building fires. Background technique [0002] In today's world, urban high-rise building fires, large warehouse fires, oil depot fires, dangerous goods warehouse fires and other fires emerge in endlessly. Ruthless large-scale fires are threatening the property and life safety of the country and people with its unpredictability and huge destructiveness. [0003] Urban building fires often occur in urban areas. Due to the restrictions of road traffic and floors, it is difficult for firefighters to go deep into the fire scene. After the firefighting vehicles arrive at the fire area, the firefighters need to conduct fire scene investigation and fire point prediction on the scene environment. At present, basically adopt Manual operation puts forward higher requirements for the number of personnel and operation level. At ...

AI Technical Summary

Problems solved by technology

[0003] Urban building fires often occur in urban areas. Due to the restrictions of road traffic and floors, it is difficult for firefighters to go deep into the fire scene. After the firefighting vehicles arrive at the fire area, the firefighters need to conduct fire scene investigation and fire point prediction on the scene environment. At present, basically adopt Manual operation puts forward higher requirements for the number of personnel and operation level; at the same time, the labor intensity of firefighters operating fire extinguishing equipment is high, and it is easy to cause casualties to firefighters when manually extinguishing a fire at a close distance

Images