A tunnel ventilation and smoke exhaust system for fire prevention

Abstract

A tunnel ventilation and smoke exhaust system for fire prevention disclosed by the present invention comprises a tunnel, a road is arranged under the tunnel, a smoke exhaust device is arranged on the upper wall of the tunnel, and a rain collection device is arranged on the surface above the tunnel. device, the rain collecting device includes a grit chamber located on the right side of the smoke exhaust shaft with an upward opening, a water storage tank is provided in the rear wall of the smoke exhaust shaft and below the grit chamber, and A fire extinguishing device is provided below the reservoir. The present invention can respond quickly when a fire occurs in the tunnel, and discharge the diffuse smoke in the tunnel to prevent the smoke from causing the decrease of visibility in the tunnel and affecting the breathing of the trapped people in the tunnel. Safety guarantee in the event of a fire in the tunnel. At the same time, the reservoir can be automatically connected to the fire extinguishing operation while the smoke is being exhausted. When the fire is over and the smoke clears, the communication with the reservoir can be automatically interrupted, which can play a role in fire extinguishing. It also saves water resources.

Description

technical field [0001] The invention relates to the technical field of tunnel ventilation systems, in particular to a tunnel ventilation and smoke exhaust system for fire prevention. Background technique [0002] With the development of the transportation network, in order to facilitate more areas and save money, it is usually necessary to build tunnels when encountering mountains. However, for some long-length tunnels, once a fire occurs in the tunnel, the The smoke is extremely difficult to dissipate quickly, causing the tunnel to be filled with smoke and reduce visibility, which may cause more traffic accidents, and even cause suffocation of people trapped in the tunnel, endangering life safety, and fires in tunnels are generally difficult to deal with quickly, requiring Wait for the firefighters to arrive. The present invention illustrates a device capable of solving the above-mentioned problems. Contents of the invention [0003] technical problem: [0004] For som...

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Problems solved by technology

[0002] With the development of the transportation network, in order to facilitate more areas and save money, it is usually necessary to build tunnels when encountering mountains. However, for some long-length tunnels, once a fire occurs in the tunnel, the The smoke is extremely difficult to dissipate quickly, causing the tunnel to be filled with smoke and reduce visibility, which may cause more traffic accidents, and even cause suffocation of people trapped in the tunnel, endangering life safety, and fires in tunnels are generally difficult to deal with quickly, requiring Waiting for the firefighters to arrive

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