Flame spread simulation experiment system

Abstract

The invention discloses a flame spread simulation experiment system comprising an experiment table which is used for simulating combustion flame spreading of a solid combustible and a control terminalwhich is used for automatically recording and controlling working of the experiment table. The experiment table comprises an air humidifying chamber, a combustion chamber and a smoke collecting chamber which are connected in turn. The combustion chamber is internally provided with a rotating support and an electronic scale. The top part of the combustion chamber is provided with a radiation plate. The bottom part of the smoke collecting chamber is provided with a smoke particle collecting plate. The top part of the smoke collecting chamber is provided with an exhaust fan and a laser smoke analyzer. The air humidifying chamber is externally provided with a blower which blows the wet air generated by the atomizer to the solid combustible. The combustion chamber is externally provided with ahigh-definition camera. The control terminal comprises an industrial control computer and a touch screen. The output end of the industrial control computer is connected with a blower driving module which is used for adjusting the output volume of the blower. The structure of the material is not destroyed when the solid combustible is fixed so that the influence of the radiation intensity, the inclination angle, the wind velocity and the air humidity on flame spreading can be determined and the smoke component can be analyzed in real time.

Description

technical field [0001] The invention belongs to the technical field of flame spread experiments, in particular to a flame spread simulation experiment system. Background technique [0002] The spread of flame on solid combustibles is the most common phenomenon in fire, and it is also a basic problem in fire research. Scientific understanding of the combustion mechanism and fire spread mechanism on the surface of solid combustibles is an important content of fire science research. Understanding the development and evolution of fire has important guiding significance. The main parameters related to fire spread are flame spread speed, flame shape, flame spread temperature and heat flow. For horizontal surface fire spread, the flame is mainly affected by buoyancy, and the flame is vertically upward at this time. However, when there is wind or spreading along an inclined surface, the flame will be subjected to forced convection or buoyancy-induced natural convection, making the ...

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Problems solved by technology

At present, there are quite few researches on the surface fire spread behavior of solid combustibles under the coupling effect of multi-parameters such as changing the angle of solid combustibles, air velocity, air humidity and radiation intensity at home and abroad, and when changing the angle of material placement, most experiments use rivets etc., destroying the integrity of the experimental material; or placing it on metal or thermal insulation materials, adding unnecessary external heat transfer interference factors; or the rotation performance of the bracket system is not enough to perform 360° rotation

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