Highway Tunnel Group Disaster Prevention System

Abstract

The invention discloses a disaster prevention system for a group of highway tunnels, which comprises an exhaust device and a wind shielding device; The second heating mechanism in the air supply shaft is used to heat the gas in the air supply shaft, and the air guide part has an air outlet opened along the height direction toward the ground, so that the gas in the air supply shaft is heated After heating, it is discharged from the air outlet, thereby preventing the outside air from directly entering the tunnel. The exhaust device is used to discharge the gas in the tunnel. Combined with "blocking", the channeling of pollutants between adjacent tunnels is controlled to ensure the continuous existence of a good air environment in the tunnels.

Description

Technical field [0001] The present invention relates to a disaster prevention highway tunnel group, particularly, to a road tunnel group a disaster prevention system. Background technique [0002] Air pollutants contaminate the tunnel entrance of the tunnel after the tunnel is discharged condition when on the same path, the shorter the time, contaminants easily along the longitudinal direction of the tunnel upstream of the tunnel between the diffusion distance downstream tunnel from the tunnel exit to the tunnel entrance tunnel downstream , such as not using good ventilation, fresh air replacement air pollution in the tunnel, and passengers will affect health, is not conducive to road safety. Often used in the prior art jet fans and axial fans pollutants discharged into the tunnel does not consider contamination of the downstream tunnel when the tunnel fire, because of its narrow, special semi-closed structure such that the smoke emission is difficult, more likely channeling betw...

AI Technical Summary

Problems solved by technology

[0002] The air pollutants from the tunnel will pollute the environment at the tunnel entrance after being discharged from the tunnel. When the distance between the upstream and downstream tunnels on the same path is short, the pollutants from the upstream tunnel can easily spread along the length of the tunnel from the tunnel exit to the tunnel entrance of the downstream tunnel. If good ventilation equipment is not used to replace the polluted air in the tunnel with fresh air, it will affect the health of drivers and passengers and is not conducive to driving safety

In the prior art, jet fans and axial fans are often used to discharge pollutants in the tunnel without considering the pollution to the downstream tunnel. When a fire breaks out in the tunnel, it is difficult to discharge the smoke due to its narrow and semi-closed special structure, and it is more likely to occur Pollutants flow between adjacent tunnels, thus posing a huge threat to the safety of people's lives and properties. Due to the special structural and environmental conditions such as dense tunnels, short tunnel spacing, and long intercommunication distances in the tunnel group, various accidents in the tunnels The frequency of accidents and the number of disaster relief forces required to rescue them after the incident have increased

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