Experiment system and method for stimulating combustible matter smoldering reactions

Abstract

The invention discloses an experiment system and method for stimulating the combustible matter smoldering reactions. The experiment system comprises a smoldering environment system for providing a smoldering environment, a smoldering reaction system for carrying out combustible matter smoldering reactions, and a smoldering process monitoring system for monitoring the heating temperature and the internal temperature of the combustible matter during the experiment process; wherein the smoldering environment system and the smoldering reaction system are connected through a gas supply pipeline; and the smoldering environment system comprises a gas environment adjusting device for adjusting the oxygen gas concentration and a heating environment adjusting device for adjusting the heating time. The experiment system can also comprise a smoke condensation sampling system, a gas chromatography (GC), a combustion analyzer, and the like. The provided system and method can be used to stimulate the typical combustible matter smoldering reactions, and the influence factors such as heating time, oxidant flow, oxygen gas concentration, and the like can be adjusted in the experiment system, so that people can research the typical combustible matter smoldering reactions more comprehensively.

Description

technical field [0001] The invention relates to the field of research on smoldering fires of combustibles, in particular to an experimental system and an experimental method for simulating the smoldering reaction of typical combustibles. Background technique [0002] At present, a large number of new construction and decoration materials are emerging, and quite a lot of products contain a large amount of combustible or flammable polymers. A small amount of heat may cause such materials to smolder and fire, releasing a large amount of smoke and fire. Toxic gas directly endangers people's lives. More smoldering refers to incomplete combustion that occurs under oxygen-deficient conditions and releases more toxic gases than usual flaming combustion. In addition, since smoldering mostly occurs inside the material, it is difficult to detect and extinguish. Compared with flaming combustion, a small amount of heat can cause the material to smolder, and under certain conditions to ...

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Problems solved by technology

[0004] Although there have been researches on the smoldering of combustibles, the experiments basically use a fixed experimental device, and the heat exchange conditions are unchanged, which is inconsistent with the changing state of the actual smoldering fire. Therefore, the experimental There will be a large error between the effect and the actual situation

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