Outer flame ignition platform based on cone calorimeter

Abstract

The invention relates to an outer flame ignition platform based on a cone calorimeter. The outer flame ignition platform mainly utilizes flames generated after combustible gas in a propane gas cylinder is ignited to ignite a to-be-tested sample in a sample box. According to the novel outer flame ignition platform, the ignition mode of electric spark and heat radiation of a traditional cone calorimeter is expanded, fire scenes capable of being simulated by the cone calorimeter are enriched, and the novel outer flame ignition platform is more suitable for real fire. The outer flame ignition platform further has the advantages of being easy to build, low in production and use cost, easy to operate, economical, safe and the like, and is particularly suitable for fire or combustion simulation experiments in common laboratories.

Description

technical field [0001] The invention relates to the technical field of measuring instruments and fire protection, in particular to an outer flame ignition platform based on a cone calorimeter. Background technique [0002] Fire accidents emerge in endlessly in daily life, and it is necessary to evaluate the loss of life and property caused by fire. In recent years, government agencies and fire departments have paid more and more attention to fire research. At present, the most important method of fire research is laboratory simulation experiment. Cone calorimeter, as a commonly used experimental equipment for testing the combustion performance of materials, is considered to best represent the combustion environment of actual fires, and is often used to simulate the ignition performance of materials under real fire conditions. The cone calorimeter is based on the principle of oxygen consumption. The so-called oxygen consumption principle means that when the substance is comp...

AI Technical Summary

Problems solved by technology

The existing cone calorimeter applies stable thermal radiation to the sample through the cone heater, and then uses the electric spark to ignite the sample. This research method is more friendly to the laboratory, but the thermal radiation in the real fire scene is very serious. Unstable, resulting in a huge difference in the ignition mode between the cone calorimeter test and the actual fire scene, which makes the use of the cone calorimeter to restore the fire scene has great limitations

For the type of fire that is mainly caused by flame combustion, the existing cone calorimeter test cannot truly and effectively restore the actual fire environment

Since there is a certain gap between other experimental methods for measuring the combustion performance of materials and the cone calorimeter test in terms of restoring the real on-site fire effect, it is very important to enrich the ignition methods of the cone calorimeter in simulating different scenarios and expand its fire simulation scenarios. necessary

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