Device for testing fireproof performance of external facade of building

Abstract

The invention discloses a device for testing the fireproof performance of an external facade of a building. The device comprises a simulation main wall with a window in the lower part, a combustion chamber, a combustor assembly arranged inside the combustion chamber, simulation wing walls arranged at two sides of the simulation main wall, a net rack arranged in a space formed by the simulation main wall and the two simulation wing walls, a heat flux sensor for measuring the intensity of heat flux, a thermocouple sensor hole site for measuring the temperature, and an environmental wind supply device located in front of the two simulation wing walls, wherein the combustion chamber is arranged beside the simulation main wall and is provided with an opening communicating with the window; and the heat flux sensor and the thermocouple sensor hole site are arranged on the net rack. The device is a simulation test device for the fireproof performance of the external facade of the building in different environmental wind speed environments for different forms of the external facades of high-rise or super high-rise buildings. Compared with the prior art, the device has the advantages that important test models can be provided for the coupling action influences of external facades forms of the buildings and the external environmental wind speeds on open overflow flame characteristics and the influences on the fireproof performance of the external facade, and the bank in the industry is filled.

Description

technical field [0001] The invention relates to the technical field of fire protection engineering, in particular to a test device for the fire performance of building facades. Background technique [0002] With the continuous development of my country's economy, high-rise / super high-rise buildings continue to emerge, and their fire safety issues are also increasingly valued. After a fire breaks out in a high-rise / ultra-high-rise building, the incompletely combusted components of the fuel form overflow flames through the vertical openings of the external wall such as windows, which is likely to ignite the combustible thermal insulation materials on the external wall, or cause the upper glass curtain wall to rupture, thus causing multiple accidents. Floor fire spread. Many fire accidents at home and abroad in recent years have shown that it is difficult to put out fires in high-rise buildings, and it is difficult to quickly control the fire, which can easily lead to heavy pr...

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Problems solved by technology

[0006] Although similar design studies have been proposed in the prior art, none of them can meet the requirements of the fire performance simulation test device for building facades.

For example, the patent document with the patent application number 201510133068.1 discloses a simulation experiment device for the fireproof structure and performance of building exterior walls, which focuses on the study of building exterior wall fire protection through the design of building exterior wall horizontal baffles and vertical baffles. Structures such as horizontal baffles, vertical baffles, and fire barriers on the fire performance and influence mechanism of the flame behavior of the facade, as well as the fire performance of building exterior wall insulation materials and fire protection under the conditions of a variety of complex building exterior fireproof structures Performance research, which cannot be used to simulate the simulation experiment of the change of the distance between the side walls of the building facade, the change of the window size, and the determination of the heat release rate of the fire source

For example, the patent document with the patent application number of 200910184963.0 discloses a fire simulation experiment device for the outer wall of urban buildings. Through the design of the slope plate, it focuses on the impact of indoor overflow fire on the outer wall of the building, and the condition of the adjacent slope is limited. The flame behavior experiment and research equipment, the focus of the research is the influence of the external slope of the building on the building, which cannot be used to simulate the influence of structural forms such as building facades on the overflow flame behavior

For example, the patent application number is 201010580927.9, which also discloses a fire experiment device for building exterior wall insulation system. This device studies the fire spread law and fire spread suppression measures of building exterior wall insulation materials themselves. The research focus is on the influence of building exterior wall structure. The dynamics and laws of fire spread under the same conditions, but the flame behavior test under the situation of double flank walls cannot be simulated

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