Vertical combustion characteristic experiment device capable of controlling gas environments and side wall structures

Abstract

The invention discloses a vertical combustion characteristic experiment device capable of controlling gas environments and side wall structures, and belongs to the technical field of experiment teaching or scientific research apparatus. The vertical combustion characteristic experiment device capable of controlling gas environments and side wall structures comprises an experiment table, an analysis control cabinet, a combustible gas bomb group, and a vacuum pump; the experimental table comprises a combustion chamber, a fixing device of variable side wall structures, a gas homogenizing device,a hot flow sensor, a linear ignition device, and a flue gas collecting device; the analysis control cabinet comprises an operation panel, a gas mixing regulating and controlling system, a gas pressureregulating and controlling system, a hot flow data acquisition device, a flue gas toxicity analysis device, a computer host, a computer display, a mouse, and a keyboard; the operation panel comprisesa power supply switch button, a sudden stop button, a measuring starting button, and an igniting button. The vertical combustion characteristic experiment device is used for measuring of characteristic parameters of vertical arranged combustible matters at different gas environments, under different side wall structure conditions, and is mainly used in fire-fighting teaching and scientific research.

Description

technical field [0001] The invention is used to measure the characteristic parameters in the combustion process of combustibles arranged vertically in different gas environments (different oxygen concentrations, different gas pressures) and different side wall structures. It is mainly used in fire protection teaching and scientific research work, and belongs to the experiment In the technical field of teaching or scientific research instruments, it specifically refers to a vertical combustion characteristic experimental device with a controllable gas environment and a side wall structure. Background technique [0002] Vertical fire spread refers to the fire spread behavior in which the direction of spread is consistent with the direction of gas flow. Generally speaking, vertical fire spreads quickly and has a high risk of fire. It has always been an important research topic in the field of building fire prevention. At present, scholars at home and abroad have systematically ...

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Problems solved by technology

The instrument can flexibly perform multi-angle oblique combustion experiments (such as oblique combustion experiments with inclination angles of 30°, 45°, and 60°), and quantitatively measure the sample surface temperature, mass loss rate, and smoke toxicity. Carrying out combustible combustion experiments in a specific environment to realize the determination of the vertical combustion characteristic parameters of combustibles in two simple structural forms of wall-attached and double-faced, cannot effectively reveal the effects of oxygen concentration, gas pressure, and side wall effects. Influence Mechanism of Fuel Combustion

From the above, it can be seen that the existing experimental instruments cannot simulate the experimental conditions of different gas environments and different side wall structures, which greatly restricts the development of experiments. Experimental device for vertical combustion characteristics of combustibles in the form of wall structure

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