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Natural dispersion air-discharge apparatus for road tunnel

A technology for highway tunnels and exhaust devices, which is applied in the ventilation of mines/tunnels, mining equipment, and earth-moving drilling, etc., can solve problems such as difficulty in selecting well locations, achieve rich emission methods, improve feasibility, and save electricity costs effect of spending

Active Publication Date: 2013-05-01
SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE
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Problems solved by technology

[0003] In the site selection of the exhaust shaft at the exit section of the tunnel, especially in the city, it is often restricted by various conditions, such as landscape, strong opposition from residents, planning and other reasons, it is difficult to select a suitable well location

Method used

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  • Natural dispersion air-discharge apparatus for road tunnel

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Embodiment Construction

[0013] Hereinafter, the features of the present invention and other related features will be further described in detail through embodiments in conjunction with the accompanying drawings, so as to facilitate the understanding of those skilled in the industry:

[0014] Such as figure 1 As shown, the numbers 1-6 respectively indicate: Uplink Tunnel 1, Downlink Tunnel 2, Tunnel Sidewall 3, Tunnel Sidewall 4, Air Channel: U1, U2, U3, U4, U5, D1, D2, D3, D4, D5 .

[0015] Such as figure 1 As shown, the road tunnel is a two-hole one-way road tunnel, including an upward tunnel 1 and a downward tunnel 2. In this embodiment, the direction in which the tunnel is close to the exit is referred to as the exit section of the tunnel. For the upstream tunnel 1 and the downstream tunnel 2, the exit sections are respectively located at both ends of the tunnel.

[0016] In the ascending tunnel 1, the tunnel air is affected by the piston of the vehicle and flows from the entrance to the exit of the a...

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Abstract

The invention relates to a natural dispersion air-discharge apparatus for road tunnel belonging to the road tunnel ventilation field. The apparatus comprises a road tunnel; is characterized in that: aplurality of wind channels are formed on the road tunnel exit segment in the range with the distance of 10%-40% of the tunnel overall length to the exit; the wind channels are formed on the top or side wall of the road tunnel; and the total area of the wind channels is no less than twice of the cross sectional area of the tunnel. The invention has the following advantages: saves electricity charge by adopting natural air-discharge mode; solves the problem of centralized air-discharge well construction in road tunnel (especially city tunnel); dispersing the tunnel exhaust to reduce the influence to environment; enriches tunnel exhaust gas exhausting manners, and improves the tunnel construction feasibility of the section difficult for building wind well.

Description

Technical field [0001] The invention relates to road tunnel ventilation, in particular to a natural dispersed air exhaust device for road tunnels. Background technique [0002] In highway tunnels, vehicles that drive will continuously emit harmful exhaust gas and smoke. When the concentration of harmful exhaust gas and smoke exceeds a certain value, it will cause harm to drivers and passengers, affecting health and driving safety. Therefore, in order to ensure the air environmental sanitation standards required for the normal operation of the tunnel, the tunnel should be ventilated. As the tunnel concentrates a certain length of vehicle exhaust, when there are residents at the tunnel entrance, the tunnel exhaust gas is not allowed to be discharged at the tunnel entrance. Therefore, the urban tunnel is equipped with a centralized exhaust air shaft at the exit of the tunnel, so that most of the tunnel exhaust gas is discharged through the air shaft, reducing the impact on the envi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F1/18
Inventor 瞿立蒋卫艇郑晋丽沈哲强汪雄平
Owner SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE
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