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A fire simulation experimental device and experimental method for studying building fire separation distance

A technology for simulating experimental devices and distances, which is applied to the simulation devices, simulators, transportation and packaging of space navigation conditions, and can solve the problem of adjusting the size of the opening, the difficulty in the combustion performance of the decorative materials on the outer wall of the fire separation distance, and the study of unfavorable systems , time-consuming and labor-intensive problems, to achieve the effect of quick adjustment, convenient adjustment and convenient spacing

Inactive Publication Date: 2021-01-08
应急管理部天津消防研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, some researchers use fixed reinforced concrete structure experimental devices to study the heat radiation intensity between buildings. However, when using fixed experimental devices to study the factors affecting the heat radiation There are great difficulties in the combustion performance of facing materials, which is time-consuming and labor-intensive, which is not conducive to comprehensive and systematic research.

Method used

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  • A fire simulation experimental device and experimental method for studying building fire separation distance
  • A fire simulation experimental device and experimental method for studying building fire separation distance
  • A fire simulation experimental device and experimental method for studying building fire separation distance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] see figure 1 , figure 2 , the experimental device includes the main frame of the experimental device 1, the combustion chamber 2, the target wall 3, the measurement system 4, and the simulated fire source 5. The main body 1 of the experimental device is a three-story steel structure frame. The wall 1-1 is composed of multiple modular wall panels 1-2, the combustion chamber 2 is located on the first floor of the main body 1 of the experimental device, and the remaining three walls 2-1 of the combustion chamber also use modular wall panels 1-2, and the top is made of light steel The keel is filled with rock wool and the floor 2-2 is composed of fireproof boards. The outer wall 1-1 is in a sealed state with the combustion chamber walls 2-1 on both sides. The combustion chamber 2 is 4.5m wide, 4.0m long, and 2.7m high. m, install a modular wall on the outer wall and form an opening with a width × height of 2.4m × 1.8m, and open a door with a width × height of 0.9m × 2.0m ...

Embodiment 2

[0029] see Figure 6 , Figure 7 , the difference from the implementation case 1 is that the modular wall 1-2 is installed on the outer wall 1-1 and an opening whose width×height is 1.8m×1.5m is formed; the position of the target wall 3 is adjusted so that the target wall 3 and The horizontal distance between the outer walls 1-1 of the combustion chamber 2 is 4m; on the outer surface of the modular wall panel 1-3, a fiber-reinforced calcium silicate board 1-6 is fixed with a water strip 1-9 with a cross-sectional size of 20mm×38mm, Fix the dry-hanging wooden hanging boards 1-8 on the surface of the water strip, and form a 20mm thick cavity between the fiber-reinforced calcium silicate boards 1-6 and the wooden hanging boards, so as to study the situation that the outer wall 1-1 of the building on fire is a combustible decorative panel Next, the effect of superposition of window high-temperature heat radiation and external wall material combustion on the temperature and radiat...

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Abstract

The invention relates to a fire simulation experimental device for researching the building fire prevention distance and an experimental method thereof. The experimental device comprises a main frame,a combustion chamber, a target wall, a simulated fire source and a measuring system. The front surface of the main body is provided with an outer wall formed by modular wallboards. The combustion chamber is located on the first layer of the experimental device. The target wall is exactly opposite to the combustion chamber. The porous burner which can control the gas flow rate is used as the firesource. The measuring system comprises a temperature measuring device and a radiant heat flux density measuring device. The simulation experiment can be performed to study the spreading characteristicand behavior of flame and high temperature generated by the building fire from the openings in the outer wall to the outer walls of the adjacent buildings by changing the distance between the targetwall and the outer wall, the opening dimension, the fire power of the fire source and the outer wall finishing materials with different combustion performance so as to provide scientific reference significance and powerful technical support for strengthening the understanding of the fire spreading law among the buildings and carrying out the optimization design of the building fire prevention distance.

Description

technical field [0001] The invention relates to a building fire simulation experiment device, in particular to a fire simulation experiment device and an experiment method for studying the building fire prevention distance. Background technique [0002] The fire separation distance is an important building fire prevention measure to prevent the fire from spreading between buildings. There are many factors affecting the fire separation distance, and the conditions are different. When determining the fire separation distance, the effects of flying fire, heat convection and heat radiation are mainly considered. Among them, the heat radiation effect of fire is the main way. The intensity of thermal radiation is related to fire fighting and rescue forces, fire duration, the nature and quantity of combustibles, the size of the opening area on the outer wall, the length and height of the building, and meteorological conditions, but it is impossible to consider all of them in actua...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B9/00
CPCG09B9/00
Inventor 彭磊倪照鹏邱培芳刘鑫
Owner 应急管理部天津消防研究所
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