Convenient dust removal and smoke exhaust wind tunnel experiment device and method capable of adjusting airflow angle

Abstract

The invention discloses a convenient dust removal and smoke exhaust wind tunnel experiment device and method capable of adjusting an airflow angle, and the device comprises a power system, a rectification pipe network, a horizontal experiment table in a wind tunnel, a hydraulic lifting device, and a quick smoke exhaust system, and can carry out a small-scale fire experiment under the action of inclined airflow. The wind speed in the power system is adjustable, the turbulence of airflow is reduced through the rectification pipe network, and the stability of the wind speed is improved. The inclination angle of the wind tunnel is adjusted through a hydraulic lifting device at the bottom of the device, and then airflow with different inclination angles relative to the horizontal experiment table is provided for a fire experiment under the action of inclined airflow. An openable door-type structure is arranged at the experiment section, so that experiment instruments can be conveniently placed, and smoke dust in the experiment cabin is removed. A smoke exhaust fan is arranged at the tail end of the wind tunnel, and a smoke outlet is connected outdoors through a pipeline to guarantee good experimental environment. According to the invention, a fire experiment under the action of inclined airflow can be quantitatively studied, and a reference basis is provided for a fire scientific experiment method.

Description

technical field [0001] The invention relates to the technical field of wind tunnel laboratories, in particular to a convenient dust removal and smoke exhaust wind tunnel experimental device and method capable of adjusting the airflow angle. Background technique [0002] The wind tunnel laboratory is a pipeline experimental equipment that artificially generates and controls the airflow to simulate the effect of the airflow on the measured target and observe physical phenomena. The wind generated by the fan of the wind tunnel's power device has a strong degree of turbulence, which is not suitable for experiments that require high airflow conditions. Natural wind is generally random, and at places close to the high-temperature ground, its direction is often changed due to the difference in air density, so that its angle relative to the horizontal plane changes. In order to simulate the fire development scene under the action of ambient wind and improve the accuracy, it is nece...

AI Technical Summary

Problems solved by technology

The existing wind tunnel device has a single structure, which can only provide horizontal airflow, and cannot simulate natural wind with a horizontal inclination angle.

Fire experiments are often accompanied by a large amount of smoke and dust, which not only affects the recording of experimental data, but also has a bad impact on the laboratory environment

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