Typical building inverted-V-shaped slope roof fire spread experiment simulation device under action of ambient wind

Abstract

The invention discloses a typical building inverted-V-shaped slope roof fire spread experiment simulation device under the action of ambient wind. The device comprises an air supply system, an inverted-V-shaped slope roof simulation experiment table and a data acquisition and processing system. The experiment simulation device is a small-size test stand which is specially used for carrying out comprehensive systematic research on the influence of the roof angle on the flame shape, the flame spreading speed, the flame heat flow distribution and the spreading criterion of the flame from a windward slope to a leeward slope on the roof slope when a fire happens to the upper surface of the typical building inverted-V-shaped slope roof under the action of the ambient wind. The device has important scientific and application values for researching the actual typical slope roof building fire hazard and has guiding significance for optimizing the slope roof building design so as to reduce the fire hazard of the slope roof building.

Description

technical field [0001] The present invention relates to the technical field of fire safety, and more specifically relates to a typical building inverted V-shaped sloping roof fire spread experiment simulation device under the action of ambient wind, which is used to control the fire on the surface of a typical building sloping roof under the horizontal wind forced convection. The study of spreading behavior. Background technique [0002] my country is a multi-ethnic country, and the ethnic minority villages are dense and there are a large number of wooden structures in them. These buildings often lack the necessary fire protection planning and fire separation measures when they are constructed, which poses great fire safety hazards. Once a fire breaks out, the fire will quickly spread from the inside of the building to the outside of the building. Under the action of buoyant natural convection, the fire will quickly spread along the outer wall of the building to the roof, a...

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Problems solved by technology

[0005] However, due to the extremely limited related research, the experimental data and numerical simulation results of the existing research cannot fully reveal the fire behavior and main control mechanism of fire spread on typical building sloping roofs under the action of ambient wind. Large-scale building fire experiments need to mobilize a lot of manpower, material and financial resources, and the real experimental conditions are difficult to control, and the experiment is not easy to carry out

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