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Fire simulation experiment device for slope adjustable tunnels under action of longitudinal wind

A technology for simulating an experimental device and an experimental device is applied in the field of a slope-adjustable tunnel fire simulation experimental device under the action of longitudinal wind, which can solve the problems of large influence of various factors, poor repeatability, and difficulty in development.

Active Publication Date: 2017-05-24
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology

Because the full-scale fire experiment requires a lot of manpower and material resources, it is costly, is greatly affected by various factors, the conditions are difficult to control, and the repeatability is poor, so it is not easy to carry out

Method used

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  • Fire simulation experiment device for slope adjustable tunnels under action of longitudinal wind
  • Fire simulation experiment device for slope adjustable tunnels under action of longitudinal wind
  • Fire simulation experiment device for slope adjustable tunnels under action of longitudinal wind

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Embodiment Construction

[0032] combined with Figure 1-5 , the present invention will be further illustrated by examples.

[0033] A tunnel fire simulation experiment device with adjustable slope under the action of longitudinal wind, comprising a main body of a test bench, a movable longitudinal ventilation system and a supporting measurement and control system.

[0034] see figure 1 A tunnel fire simulation experiment device with adjustable slope under the action of longitudinal wind includes a tunnel test bench main body 1, a movable longitudinal ventilation system 4, and a supporting measurement and control system. The main body of the test bench is composed of a tunnel 1 and a fire source system. The fire source system includes a simulated fire source 7, a support below the fire source 8, and an electronic balance 9. The tunnel 1 is 6.0m long, 1.0m high, and 2.0m wide; the tunnel test bench uses angle steel As a supporting frame, the outer wall of the main body of the test bench is made of 8mm...

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Abstract

The invention provides a fire simulation experiment device for slope adjustable tunnels under the action of longitudinal wind. The device can be used for simulating fire burning situations in tunnels having different slopes under the action of longitudinal ventilation, and researching the limited evolution law of fire plumes and ceiling jets in slope tunnels under the action of longitudinal ventilation. The device comprises an experiment table main body, a movable longitudinal ventilation system and a supporting measurement and control system, is designed according to a small-scale model proportion of 1: 5, and is a first experiment device special for comprehensive system researches on fire heat release rate, temperature distribution, limited fire plume form, ceiling jet feature parameter distribution and the like in tunnels having different slopes under the action of longitudinal ventilation. The device overcomes the limitations of high full-scale experiment cost and inaccurate numerical simulation tools based on previous researches, simultaneously ensures the repeatability and operability of experiments, and has important practical significance and broad application prospect for searching the influence of longitudinal ventilation of jet fans on tunnel fires under different slopes.

Description

technical field [0001] The invention belongs to the technical field of fire safety, and specifically relates to a tunnel fire simulation experiment device with adjustable slope under the action of longitudinal wind, which is specifically for studying the heat release rate, flame form, and ceiling jet temperature of tunnel fire under different longitudinal ventilation wind directions and wind speeds , Velocity distribution, thermal radiation flux simulation experiment device. Background technique [0002] Since the beginning of this century, the average annual growth rate of road tunnels in my country has reached as high as 20%. By the end of 2013, 11,359 road tunnels had been built with a total length of 9,606 kilometers. China has become the largest, most numerous and most difficult tunnel project in the world. nation. Many highway tunnels have a certain longitudinal slope, and the longitudinal slope parameter is a unique parameter in tunnel engineering. my country's "Code...

Claims

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Application Information

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IPC IPC(8): G09B25/00
CPCG09B25/00
Inventor 高子鹤纪杰原向勇王浩波万华仙李曼
Owner UNIV OF SCI & TECH OF CHINA
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