Pyrotechnical hot-gas sol fire extinguishing agent and preparation method thereof

Abstract

The invention discloses a pyrotechnical hot-gas sol fire extinguishing agent and a preparation method thereof, and relates to the field of fire extinguishers. The pyrotechnical hot-gas sol fire extinguishing agent is prepared from 41 to 56 weight percent of first oxidant, 8 to 15 weight percent of second oxidant, 15 to 26 weight percent of burnable agent, 4 to 17 weight percent of adhesive and 2 to 22 weight percent of functional additive. The preparation method comprises the following steps of: mixing the oxidants, the burnable agent and the functional additive, then screening the mixture, stirring the mixture and the adhesive, mixing and stirring the mixture and organic solution, pressing the mixture and drying the mixture. The pyrotechnical hot-gas sol fire extinguishing agent has the characteristics of high fire extinguishing efficiency, simplified fire extinguishing composition, no influence of combustion reaction on external oxygen concentration change, no harm substance production to human bodies, animals and natural environments, safer operating mode, simpler and more convenient preparation method and the like, and is suitable for extinguishing fire of fuel and electrical equipment of automobile engine cabins, airplane fuel cabins, power distribution cabinets and the like.

Description

technical field [0001] The invention relates to fire-fighting equipment, in particular to a pyrotechnic hot aerosol fire extinguishing agent suitable for fuel and electrical equipment fires such as automobile engine compartments, aircraft fuel compartments, and power distribution cabinets, and a preparation method thereof. Background technique [0002] Since the advent of aerosol fire extinguishing technology, it has been favored by the world because of its non-toxic, harmless, high efficiency, total submersion, and all-round fire extinguishing characteristics, and related patents have emerged in an endless stream. At present, the aerosol fire extinguishing agents used for fuel oil and electrical equipment in relatively closed spaces such as automobile engine compartments mainly include hot aerosol fire extinguishing agents and cold aerosol fire extinguishing agents. Hot aerosol fire extinguishing agents mainly include potassium salts represented by Russian patent groups as o...

AI Technical Summary

Problems solved by technology

[0003] In the past, most aerosol fire extinguishing agents were pressed by hot pressing, and there were obvious defects: First, the pressure required for the fire extinguishing agent to form a product was relatively high, ranging from 1000 to 1500kg / cm 2 (100 ~ 150Mpa), which increases the danger when pressing the fire extinguishing agent; the second is that the main components forming aerosol have a small amount of water content, which leads to the instability of ignition and combustion; It is carried out at ~90°C, and the operating environment is harsh