Combustible tilting burning characteristic experiment device capable of controlling temperatures, humidity and oxygen concentration

Abstract

The invention discloses a combustible tilting burning characteristic experiment device capable of controlling temperatures, humidity and oxygen concentration. The device comprises an experiment table, an analysis control cabinet and a gas storage cylinder group, wherein the gas storage cylinder group is connected with the analysis control cabinet and provides gas required by an experiment, and the analysis control cabinet adjusts gas parameters and analyzes experiment data, and the experiment table records the experiment data, transmits the experiment data to the analysis control cabinet and receives the gas from the analysis control cabinet. Gas mixing and the temperature increasing and humidification process are realized by the use of gas mixing control elements and constant temperature and constant humidity control elements, so that the nitrogen and oxygen proportion of gas and the temperature and humidity of gas can be effectively controlled, the mass loss rate, the sample surface temperature and the smoke toxicity in the combustible burning process under the conditions of different environments (different humidity and different oxygen concentrations) are evaluated and analyzed quantitatively in real time, and the tilting burning characteristic of the combustible is evaluated quantitatively.

Description

technical field [0001] The invention relates to an experimental device for inclined combustion characteristics of combustibles with controllable temperature, humidity and oxygen concentration, which is mainly used in fire protection teaching and scientific research, and belongs to the field of experimental teaching or scientific research instruments. Background technique [0002] With the rapid development of my country's economy, more and more combustible materials arranged vertically appear in urban buildings. For example, urban building decoration, decorative items hanging inside large entertainment shopping malls, large billboards on building exterior walls, theater curtains, etc. Most of these thin combustibles are located in public gathering places and are very easy to contact with ignition sources. Once ignited, the flame will spread rapidly and ignite adjacent combustibles, forming a large-scale three-dimensional fire that is difficult to control. The occurrence of ...

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Problems solved by technology

The instrument can flexibly perform multi-angle inclined combustion experiments (such as inclined combustion experiments at 30°, 45°, and 60°) to quantitatively measure the sample surface temperature, mass loss rate, and smoke toxicity. Combustion experiments of combustibles in a specific environment cannot measure the characteristic parameters of combustibles' multi-angle oblique combustion in different environments (such as plateau environment and high humidity environment), and cannot reveal the effects of temperature and humidity and oxygen concentration on combustibles. Mechanisms of Combustion

It can be seen that the existing experimental equipment cannot simulate the special environment of different oxygen concentration and temperature and humidity, which has a great restriction on the development of the experiment. Therefore, it is urgent to develop an oblique combustion characteristic of combustibles that can effectively control the oxygen concentration and gas temperature and humidity. experimental device

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