Tunnel fire simulation experiment device under action of multi-angle canyon wind

A technology for simulating experimental devices and wind effects, applied in measuring devices, teaching models, educational appliances, etc., can solve the characteristics of liquid pool ignition (complexity of flame height, inclination angle and burning rate, etc.), to ensure repeatability and Ease of operation, low cost, and the effect of improving utilization efficiency

Inactive Publication Date: 2020-11-20
CENT SOUTH UNIV
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  • Application Information

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Problems solved by technology

However, when the pool fire is located in a tunnel and there is wind in the tunnel, the characteris

Method used

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  • Tunnel fire simulation experiment device under action of multi-angle canyon wind
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  • Tunnel fire simulation experiment device under action of multi-angle canyon wind

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Embodiment Construction

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0051] refer to Figure 1-9 , a tunnel fire simulation experiment device under the action of multi-angle canyon wind, including a main body of a test bench 1, a canyon wind system 2 and a supporting measurement and control system 3;

[0052] The main body of the test bench 1 includes a tunnel model 5 that is movably connected to the support 4;

[0053] Described tunnel model 5 is formed by the structure that becomes 1:20 ratio with actual tunnel size, and tunnel model 5 is long 18m, and height is 0.6m, and width is 0.5m (tunnel cross-section is horseshoe shape, wherein the rectangle height of lower half is 0.3, upper The central angle of the half arc is 135°, and th...

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Abstract

The invention relates to a tunnel fire simulation experiment device under the action of multi-angle canyon wind, which belongs to the technical field of fire safety and comprises an experiment table main body, a canyon wind system and a matched measurement and control system, wherein the experiment table main body comprises a tunnel model movably connected to a bracket; the canyon wind system comprises a draught fan and a rectification box which are movably connected to the bracket, and an air outlet of the draught fan is communicated with the rectification box through a soft connection section. The rectification box comprises a butt joint section, a rectification section and a current stabilization section which are connected in sequence. The device is simple in structure, the device is simple in structure and low in manufacturing cost, makes up the defects that a full-size experiment is high in cost and a numerical simulation tool is not accurate enough, guarantees the repeatabilityof the experiment, and has great application value and important guiding significance for developing laboratory scientific research and the influence of actual canyon wind on bridge tunnel ventilationand tunnel fire in a high-altitude area.

Description

technical field [0001] The invention relates to the technical field of fire safety, in particular to a tunnel fire simulation experiment device under the action of multi-angle canyon wind. Background technique [0002] my country's terrain is complex, with many mountainous and hilly terrains, and with the in-depth implementation of the national Yangtze River Economic Belt and China's Western Development Strategy, the economy is developing rapidly, and the number of tunnels in my country's mountainous areas is also increasing. Due to the special terrain of the mountainous area, there are many undulating mountains and deep canyons, so the tunnels in the mountainous area inevitably pass through the canyon area. When the airflow blows from the open area to the canyon, it will be accelerated into a strong canyon wind due to the smaller passing area. Since the air cannot accumulate in large quantities, when it blows into the tunnel, the canyon wind will cause a complex three-dime...

Claims

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Application Information

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IPC IPC(8): G09B25/00G01M9/08
CPCG09B25/00G01M9/08
Inventor 范传刚李玉豪焦澳栾蝶高雨欣
Owner CENT SOUTH UNIV
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