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Simulation experiment device of fire disaster on external wall face of urban building

A technology for simulating experimental devices and outer walls, applied in measurement devices, using electrical devices, using electromagnetic means, etc., can solve the problems of poor reproducibility of full-scale fire tests, heavy economic losses, long research cycles, etc. The effect of full and complete combustion and the safety of the slope adjustment system

Inactive Publication Date: 2010-04-21
UNIV OF SCI & TECH OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 2009, a fire broke out in the annex building of CCTV during the Lantern Festival, resulting in the death of one firefighter and the injury of seven others. The economic loss exceeded 500 million yuan, and three fire officers and soldiers died; similar cases include the 2008 "Longitude and Latitude 360 ​​Degrees" building fire in Harbin, etc.
Full-scale experiments require a lot of manpower, material and financial resources, and the research cycle is also long, and due to the complexity and randomness of actual fires, the reproducibility of full-scale fire experiments is poor; therefore, a large number of scholars mainly use small-scale model, and introduce the idea of ​​similar theory to conduct research, small-scale experiments have the advantages of easy manipulation, good reproducibility, and high reliability of measurement results

Method used

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  • Simulation experiment device of fire disaster on external wall face of urban building
  • Simulation experiment device of fire disaster on external wall face of urban building
  • Simulation experiment device of fire disaster on external wall face of urban building

Examples

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Effect test

Embodiment 1

[0033] See figure 1 , The fire simulation experiment device on the outer wall of urban buildings includes simulated wall 1, combustion chamber 2, weighing mechanism 8, ramp board 4, ground rail 7, thermocouple rack 9 and heat radiation flux measurement rack;

[0034] The simulated wall 1 is in the shape of a vertical frame, which is formed by connecting steel structural units, and the surface of the frame is installed with a wall plate composed of steel plate and fireproof material. There are wall pulleys 10 on both sides of the top of the simulated wall 1; one end of the ground track 7 is located at the bottom of the simulated wall; the ramp board 4 is erected on the track 7, and the top ends are respectively connected to the cable 11, two cables 11 Respectively cross the wall pulleys on both sides of the top of the simulated wall 10 are connected to the hoisting motors 3 on both sides of the bottom of the simulated wall; the ground track 7 is rack-shaped, and the bottom of the r...

Embodiment 2

[0040] see figure 1 , The frame structure unit that simulates the outer wall is welded by angle steel, the length is 1m, the cross-sectional area is 30cm×30cm, and it is fixed by screw riveting. The total height of the simulated wall 1 frame is 5m, and the columns on both sides are composed of 5 units; the horizontal beam is 3m long and consists of 3 units, and another beam is reinforced at a height of 3m from the ground. A 2mm thick steel plate is welded on the wall frame, and a 5mm thick glass magnesium fireproof board is laid on the outside to form the wall.

[0041] see figure 2 , The internal net size of combustion chamber 2 is 80cm×80cm×80cm. The box body of combustion chamber 2 is seamlessly welded by five pieces of 6mm thick steel plate, and the side is the door. The door frame is welded by 6mm thick steel plate. The door frame is equipped with a slot for easy installation of the door panel. There is a 50×50 door panel opening 15 on the door panel, and the door panel ope...

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Abstract

The invention relates to a simulation experiment device of a fire disaster on an external wall face of an urban building. The device comprises a simulation wall body, a burning closet, a weighing mechanism, a slope board, a ground track, a thermoelectric couple frame and a thermal radiation flux measurement frame, wherein the simulation wall body is in a vertical framework shape; the burning closet is a square box the bottom of which is connected with a weighing support; the weighing mechanism comprises an electronic scale and a movable support; the thermoelectric couple frame is a rectangle framework, and more than 10 thermoelectric couples are distributed on the thermoelectric couple frame; the thermal radiation flux measurement frame is in a cross shape, and one end of the cross-bar thereof is provided with a thermal radiation probe, and the thermal radiation probe is correspondingly located in the door of the burning closet. In the invention, a set of simulation experiment device for researching fire disaster features on the external wall face of the building and a mechanism that the fire disaster features are influenced by a slope is firstly established, with a safe, flexible, convenient and fast sloping degree regulating system, and the experiment device is provided with a complete measurement system for temperature and thermal radiation intensity.

Description

Technical field [0001] The invention belongs to the technical field of fire safety, and specifically relates to experimental and research equipment for the spread of fire on the outer wall of an urban (super) high-rise building and the characteristics of flame and smoke plumes in the presence of restricted adjacent slopes Background technique [0002] With the rapid development of society and economy, the urban population continues to grow, and the shortage of urban land resources has prompted the continuous development of large-scale and densely populated urban buildings. Super high-rise buildings and large-scale hub projects have rapidly emerged in my country's major cities. According to incomplete statistics, Beijing alone currently has more than 300 super high-rise buildings. Fire safety is an important part of national public safety. Since the 911 incident, fire safety of large urban buildings has become a hot spot of international concern. [0003] In the large-scale urban b...

Claims

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Application Information

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IPC IPC(8): G01D21/00G01K7/04G01J5/00G01J5/02
Inventor 胡隆华唐飞朱伟祝实霍然阳东
Owner UNIV OF SCI & TECH OF CHINA
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