Underground space fire hazard simulation experiment device

Abstract

The invention provides an underground space fire hazard simulation experiment device, and relates to the technical field of fire fighting safety. The device comprises an experiment tunnel, a data acquisition system, a fire source and an automatic oil supplementing device, wherein the experiment tunnel comprises a rectangular tunnel, a movable baffle plate and an arc-shaped cover; an integral framework of the rectangular tunnel is an angle steel welding component; fireproof glass is arranged on the wall surface of the tunnel; the arc-shaped cover is a steel plate component; the movable baffle plate with uniformly distributed smoke discharging openings is arranged at the upper part of the rectangular tunnel; the movable baffle plate and the rectangular tunnel are fixedly connected through screw holes; the bottom of the rectangular tunnel is provided with a combustion basin; the bottom of the combustion basin is connected with the automatic oil supplementing device through a pipeline; thesmoke discharging openings are separately arranged; the four smoke discharging units form one unit and are connected with a smoke collecting cover through a smoke discharge pipeline; a centrifugal fan is arranged at an outlet of the smoke discharging pipeline; a jet flow fan is arranged at the upper part of the rectangular tunnel. The underground space fire hazard simulation experiment device ismainly used for underground space fire hazard simulation experiments.

Description

technical field [0001] The invention relates to the technical field of fire safety. Background technique [0002] Modern transportation hubs concentrate more and more transportation functions, such as high-speed rail, subway, urban bus, etc., and many hubs are built in densely populated urban areas, buried deeper and deeper, such as the fifth underground station of King's Cross Station in London, UK. The Hong Kong Global Center is located on the sixth basement level, the Futian Center transportation hub is located on the fourth basement level, and the Hong Kong West Kowloon High Speed ​​Rail Terminus is located on the fourth basement level. The comprehensive transportation hub has many functions and is connected through the atrium or escalators. The smoke movement characteristics are complex, especially It is easy for smoke to pass through the opening of the escalator, forming a strong chimney effect, causing the smoke to spread upward rapidly and causing the smoke control s...

AI Technical Summary

Problems solved by technology

[0002] Modern transportation hubs concentrate more and more transportation functions, such as high-speed rail, subway, urban bus, etc., and many hubs are built in densely populated urban areas, buried deeper and deeper, such as the fifth underground station of King's Cross Station in London, UK. The Hong Kong Global Center is located on the sixth basement level, the Futian Center transportation hub is located on the fourth basement level, and the Hong Kong West Kowloon High Speed ​​Rail Terminus is located on the fourth basement level. The comprehensive transportation hub has many functions and is connected through the atrium or escalators. The smoke movement characteristics are complex, especially It is easy for smoke to pass through the opening of the escalator, forming a strong chimney effect, causing the smoke to spread upward rapidly and causing the smoke control system of the entire station to fail. How to prevent the spread of fire and smoke is crucial to ensure the safe evacuation of passengers in taxi stand pick-up and drop-off areas, underground businesses, etc. Therefore, a large-scale experimental platform integrating tunnels and deep-buried stations has been built to simulate high-speed rail , the smoke movement characteristics of different ignition sources in subways and underground complex connected spaces, and the smoke exhaust efficiency of deep-buried stations under the combination of multiple smoke exhaust modes can provide reference and guidance for the smoke prevention and exhaust design of existing transportation hubs. It is of great significance to improve fire safety and protect the lives and property safety of personnel

[0003] At present, the existing domestic experimental platforms are simple in structure and single in function. The longest experimental platform is 72m long, and can only conduct experiments in the longitudinal ventilation mode of the same slope, and cannot conduct fire experiments in semi-horizontal and centralized smoke exhaust modes. Moreover, the data that can be measured are not comprehensive, only the temperature of the flue gas can be measured, and the movement of the flue gas in an actual fire cannot be accurately simulated. At the same time, the existing domestic experimental platforms are only related to tunnels, and do not integrate tunnels and deep buried stations. The integrated large-scale experimental platform cannot study the law of fire smoke spread in underground complex connected spaces

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