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Railway tunnel rescue station fire experiment system comprising plurality of evacuation transverse passages

An experimental system and cross-channel technology, applied in the fire safety field of railway tunnels, can solve the problem that the super-long double-hole tunnel cannot completely simulate the fire smoke control effect

Active Publication Date: 2015-12-16
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to solve the smoke control effect when the extra-long double-hole tunnel cannot completely simulate the fire, and to realize the measurement of the temperature field and the velocity field. The experimental system solves the problem of simulating the smoke control effect when the train stops at the rescue station after a fire in a super-long railway tunnel, and can realize the problem of measuring the temperature field and velocity field

Method used

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  • Railway tunnel rescue station fire experiment system comprising plurality of evacuation transverse passages
  • Railway tunnel rescue station fire experiment system comprising plurality of evacuation transverse passages
  • Railway tunnel rescue station fire experiment system comprising plurality of evacuation transverse passages

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 and figure 2 The fire experimental system of a railway tunnel rescue station with multiple evacuation cross passages is shown, which is used to simulate the smoke control effect in the rescue station under different smoke exhaust methods when a train in a super-long railway tunnel fires and stops at the rescue station; including Fire tunnel 1, non-fire tunnel 2, evacuation cross passage 3, train model 10, fire source 11 and smoke exhaust system. In the fire tunnel 1, a side smoke exhaust duct 4 is separated by a smoke exhaust duct partition wall 7 on the side away from the evacuation cross passage 3. The main body of the experimental tunnel of the present invention contains 9 evacuation cross passages. In the specific experiment, the fire scene in the rescue station with different number of cross passages can be realized by blocking the opening of the cross passages.

[0035] The train model 10 is made of steel bars as the frame and made of iron shee...

Embodiment 2

[0040] Such as image 3 In the shown fire experiment system of a railway tunnel rescue station with multiple evacuation cross passages, on the basis of Example 1, the section where each smoke exhaust valve is located is taken as the test section, a total of 10 test sections, each section inner arch A wind speed measuring point 12 is arranged at the lower part of the top, above the evacuation platform, and at the characteristic height of the human eye (ie 0.16m) on the center line of the evacuation platform, for measuring the wind speed at different positions in the fire tunnel; the wind speed measuring point 12 is provided with An anemometer measuring device for measuring wind velocities at different positions in a fire tunnel, the wind velocity measuring device is composed of a Pitot tube arranged in the fire tunnel 1 and a differential pressure sensor.

Embodiment 3

[0042] Such as Figure 4 and 5 In the fire experiment system of a railway tunnel rescue station with multiple evacuation cross passages shown, on the basis of Example 1, a temperature test section is arranged every 1m in the fire source area, and a test section is arranged every 2m in the non-fire source area , a total of 45 test sections, 225 thermocouples. A fire tunnel centerline temperature measuring point 13 is set at the vault position of each test section, and the fire tunnel centerline temperature measuring point 13 is arranged with a wind speed measuring device, and an evacuation platform centerline is set at the evacuation platform centerline position of each test section Temperature measuring point 14, described evacuation platform midline temperature measuring point 14 is arranged with wind speed measuring device; Wind speed measuring device can be according to needs; The thermocouple tree of different quantity and structure forms, for example, on each section, be...

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Abstract

The invention relates to a railway tunnel rescue station fire experiment system comprising a plurality of evacuation transverse passages. The railway tunnel rescue station fire experiment system comprises an experiment tunnel main body and a data measuring system. The experiment tunnel main body comprises a fire tunnel, evacuation transverse passages, a non-fired tunnel, a train model, a fire source and a smoke evacuation system. The fire tunnel is communicated with the non-fired tunnel through the evacuation transverse passages. The train model, the fire source and the smoke evacuation system are arranged in the fire tunnel. The fire experiment platform comprises nine evacuation transverse passages. By blocking different numbers of evacuation transverse passages, fire experiment research of railway tunnel rescue stations with different numbers of evacuation transverse passages is realized. The experiment platform is relatively wide in application range and is capable of combining fire scenes different in number of rescue station evacuation transverse passages, fire position, smoke evacuation mode and ventilation condition, so that the analysis research work of a plurality of railway tunnel rescue station fire scene experiments under practical conditions are realized, and the railway tunnel rescue station fire experiment system is wide in application prospect and has important guiding significance.

Description

technical field [0001] The invention relates to the technical field of fire safety in railway tunnels, in particular to a fire experiment system for a railway tunnel rescue station with multiple evacuation cross passages, which is used to simulate the smoke control effect when a train in a super-long railway tunnel fires and stops at a rescue station. It can realize the measurement of temperature field and velocity field. Background technique [0002] The railway is an important infrastructure of the country. As the main artery of the country and a popular means of transportation, it is in the backbone position in the comprehensive transportation system. As one of the important components of the railway, the number of tunnels has been increasing in recent years and the length of a single tunnel Also growing. Although the probability of fire in railway tunnels is lower than that in road tunnels, due to their deep underground and closed environment, they are greatly restricte...

Claims

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Application Information

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IPC IPC(8): G09B25/00
CPCG09B25/00
Inventor 曾艳华张玉春杨玉容白赟周小涵
Owner SOUTHWEST JIAOTONG UNIV
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