Fan blade type turbulence fire extinguishing device

Abstract

The invention discloses a fan blade type turbulence fire extinguishing device, and relates to the technical field of fire disaster treatment devices. The fan blade type turbulence fire extinguishing device comprises an air box, connecting plates and partition plates. One side of each connecting plate is fixedly connected with the inner wall of the air box, and one sides of the partition plates are fixedly connected with one sides of the connecting plates. According to a fan blade type vortex flame device, baffles not only play a role in controlling gas circulation and flow velocity, but also play a role in sealing gas through a sliding mode, two to four kinds of gas can be filled for experiments according to the requirements of the experiments, the experiment diversity is increased, and multiple kinds of fire extinguishing gas can be subjected to comparative fire extinguishing performance experiments under the same condition. Three air inlet pipelines are closed, one ventilation pipeline is opened, fire extinguishing gas is introduced, the situation that a firefighter on site can only extinguish fire on one side due to terrain limitation when facing a fire disaster is simulated, guiding significance can be achieved on site fire extinguishing according to experimental data, the gas inlet speed and the air inlet size are dynamically changed, and observation of influences of gas flow velocity changes on characteristics such as a flame structure, a flow field and colors is completed.

Description

technical field [0001] The invention relates to the technical field of fire fighting devices, in particular to a fan-blade turbulent flow fire extinguishing device. Background technique [0002] Turbulent flames often occur in large-scale fires in large cities, especially fire whirlwinds are more common in wilderness and forest fires. It is of great significance to study the changes in the properties of turbulent flames and the impact on the surrounding environment for fire safety. The current research The commonly used methods of turbulent flame experiment devices are thermally driven and mechanically driven. The thermally driven type uses four-wall and cracked devices. The principle is that when the fuel is ignited, the flame consumes the surrounding oxygen through combustion, and the inside of the device The air is heated and moves upwards, reducing the pressure in the combustion body and forming a pressure difference. The pressure difference forces the peripheral fresh a...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a fan blade type turbulent fire extinguishing device, which solves the problem of quantifying the incoming gas, dynamic observation of the impact of changing the gas flow rate on entering the entire turbulent flame area, and determining the fire extinguishing effect of inert gas or other gases When extinguishing a turbulent flame, a series of flame structure changes such as flame height, width, elongation length, vibration frequency and flame color, as well as the addition concentration of the fire extinguishing agent to extinguish turbulent flames of different fuels, etc.

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