Compressed air foam fire extinguishing device

Abstract

The invention discloses a compressed air foam fire extinguishing device which comprises an air supply unit, a water supply unit, a foam unit, a liquid-liquid mixer, an air-liquid mixer and a foam spraying device, wherein the air supply unit is connected to the air-liquid mixer through an air conveying pipeline, and the water supply unit is connected to the liquid-liquid mixer through a water supply pipeline; the foam unit is connected to the liquid-liquid mixer through a liquid supply pipeline, and the liquid-liquid mixer, the gas-liquid mixer and the foam spraying device are sequentially connected. The fire extinguishing device can be adjusted according to the required fire extinguishing strength, and the mixing ratio of the foam liquid to water can be flexibly adjusted according to the proportion of the foam liquid, so that the fire extinguishing requirements of different fire behaviors are met; the output quantity of compressed air and foam liquid is adjusted online automatically bydetecting the change of the fire-fighting water flow in real time, so that the required mixing ratio is ensured, and qualified foam is produced; and as redundancy configuration is adopted, the reliability of the whole device is improved.

Description

technical field [0001] The invention relates to the technical field of fire extinguishing, in particular to a compressed air foam fire extinguishing device. Background technique [0002] With the rapid development of social economy and the acceleration of industrialization and urbanization, fire hazards and disaster-causing factors are constantly deriving, especially in high-rise buildings, underground projects, flammable and explosive units, and high-density, large-space public gathering places. With the emergence of fire fighting and emergency rescue, the breadth, complexity and difficulty of handling fire fighting and emergency rescue are increasing, and the requirements for fire fighting methods and methods are also constantly improving. How to maximize combat effectiveness is an urgent requirement for fire fighting and rescue in the new situation. [0003] For high-rise buildings, large factories and industrial production areas, different fire extinguishing methods wil...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a compressed air foam fire extinguishing device to solve the problem that the traditional foam fire extinguishing system in the prior art uses negative pressure mixing, the mixing accuracy is not high, the mixing ratio cannot be adjusted, and it cannot be adjusted for different fire types. fire extinguishing agent problem

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