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Device for centrally discharging waste gas by adopting a middle air shaft for road tunnel

A technology for road tunnels and air shafts, which is applied in mine/tunnel ventilation, mining equipment, earthwork drilling and mining, etc. The effect of entering the address range

Active Publication Date: 2011-06-08
SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

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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  • Device for centrally discharging waste gas by adopting a middle air shaft for road tunnel
  • Device for centrally discharging waste gas by adopting a middle air shaft for road tunnel

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Embodiment Construction

[0015] The features of the present invention and other related features will be further described in detail below in conjunction with the accompanying drawings through embodiments, so as to facilitate the understanding of those skilled in the art:

[0016] Such as figure 1 As shown, the labels 1-12 respectively represent: uplink tunnel 1, downlink tunnel 2, roundabout air duct 3, jet fan 4, centralized exhaust shaft 5, centralized fresh air shaft 6, fan 7, uplink tunnel exit 8, uplink tunnel entrance 9 , the exit 10 of the downlink tunnel, the entrance 11 of the downlink tunnel, and the air circulation route 12 in the tunnel.

[0017] Such as figure 1 As shown, the road tunnel is a two-hole one-way road tunnel, including an uplink tunnel 1, a downlink tunnel 2, two roundabout air ducts 3 and an exhaust system.

[0018] The detour air duct 3 is located between the up tunnel 1 and the down tunnel 2 near the two openings, specifically, the detour air duct 3 is set between the u...

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Abstract

The invention relates to the field of road tunnel ventilation and fire protection, in particular to a device for centrally discharging waste gas by adopting a middle air shaft for a road tunnel. The road tunnel comprises an up tunnel and a down tunnel. The device comprises a detour air flue and a centralized air discharge shaft, wherein the detour air flue is communicated with the up tunnel and the down tunnel and positioned at the position of the up tunnel and the down tunnel close to portals, and the centralized air discharge shaft is arranged inside the up tunnel and the down tunnel. The device has the advantages that the device solves the problem that an address of the road tunnel, particularly the centralized air discharge shaft of a city tunnel is difficult to select; and the deviceexpands an air inlet addressing range, extends the ventilation and exhaust modes of the tunnel, and improves the feasibility of tunnel construction in difficult air shaft setting sections.

Description

technical field [0001] The invention relates to ventilation and fire protection of road tunnels, in particular to a device for intensively discharging waste gas by using an intermediate air shaft in a road tunnel. Background technique [0002] In the road tunnel, the driving vehicles will continuously emit harmful exhaust gas and smoke. Since 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 concentratedly at the entrance. Therefore, urban tunnels are equipped with centralized waste gas discharge air shafts at the entrance of the cave, so that most of the exhaust gas of the tunnel can be discharged through the air shaft, reducing the impact on the environment near the cave entrance. [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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F1/00
Inventor 蒋卫艇郑晋丽奚峰汪雄平
Owner SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE
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