Fire smoke component quantitative detection device

Abstract

The invention provides a fire smoke component quantitative detection device, and relates to the technical field of fire analysis. The fire smoke component quantitative detection device comprises a combustion chamber, a weighing system, a ventilation system, a smoke detection system and a smoke exhaust system, wherein the combustion chamber comprises a combustion area, a smoke layer area and a smoke detection area which are sequentially communicated from left to right, and the combustion area is provided with a cabin door capable of being opened or closed; the weighing system is arranged in thecombustion area and comprises a bearing piece used for placing a to-be-detected object and a weighing device connected with the bearing piece; the ventilation system is communicated with the combustion area and used for providing fresh air for the combustion area; the smoke detection system is communicated with the smoke detection area and used for detecting smoke components; and the smoke exhaust system is communicated with an outlet of the smoke detection area. The material to be detected is combusted in the combustion area, the ventilation quantity is accurately controlled through the ventilation system, smoke generated by combustion can be effectively separated from fresh air through the multi-area arrangement of the combustion chamber, the smoke mixing effect is enhanced through thesmoke layer area and the detection area, the smoke fixing effect is closer to an actual fire scene, and the smoke condition of combustion of the to-be-detected object is accurately reflected.

Description

technical field [0001] The invention relates to the technical field of fire analysis, in particular to a quantitative detection device for fire smoke components. Background technique [0002] In recent years, fire accidents have occurred frequently, involving hotels, shops, dormitories and other places with limited space, causing serious casualties and property losses. In a fire, 70% of casualties are caused by toxic fumes. Therefore, it is of great significance to accurately detect the formation of toxic gases in the combustion process of indoor combustibles, such as wood boards and sofas, for the study of fire safety. For indoor fires, the combustion of combustibles is uncontrolled combustion, and the fire development includes growth phase, ventilation restriction phase and decay phase. Since the air supply in a fire scene is mainly controlled by the thermal buoyancy turbulence formed by the fuel burning flame, the ventilation rate in the fire is constantly changing as th...

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Problems solved by technology

[0009] The invention provides a quantitative detection device for fire smoke components, aiming to improve the inability to accurately detect the smoke components produced in the process of material fire combustion

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