CN101550839B - Mechanical dispersion air-discharge apparatus for road tunnel - Google Patents
Mechanical dispersion air-discharge apparatus for road tunnel Download PDFInfo
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- CN101550839B CN101550839B CN200910050829.1A CN200910050829A CN101550839B CN 101550839 B CN101550839 B CN 101550839B CN 200910050829 A CN200910050829 A CN 200910050829A CN 101550839 B CN101550839 B CN 101550839B
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Abstract
The invention relates to a mechanical dispersion air-discharge apparatus for road tunnel belonging to the road tunnel ventilation field. a plurality of wind channels are formed on the road tunnel exitsegment in the range with the distance of 10%-30% of the tunnel overall length to the exit; the wind channels are formed on the top or side wall of the road tunnel; a blower fan is disposed in each w ind channel; and the air-discharging amount of the wind channel is no less than 70% of the total ventilation of the tunnel. The invention has the following advantages: 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
The present invention relates to highway tunnel ventilation class, specifically relate to a kind of mechanical dispersion air-discharge apparatus for road tunnel.
Background technology
In highway tunnel, the vehicle that travels is discharge harmful exhaust and flue dust constantly, in the time that the harmful exhaust of discharge and dust concentration exceed certain value, will bring harm to driver and conductor, affects healthy and traffic safety.Therefore,, for ensureing the required air ambient sanitary standard of the normal operation in tunnel, tunnel planted agent ventilate.Due to the automobile exhaust that certain length has been concentrated in tunnel, in the time that tunnel portal has resident, tunnel waste gas does not allow to concentrate discharge at portals.Therefore, city tunnel discharges ventilating shaft in being provided with exhaust gas centralized going out portals, makes the most waste gas in tunnel concentrate discharge by ventilating shaft, the impact of minimizing near environment portals.
Go out in the addressing of cave section air draft well in tunnel, particularly, in city, be often subject to various condition restriction, as various reasons such as view, resident come down hard upon, planning, be difficult to choose suitable well location.
Summary of the invention
The object of the invention is, according to above-mentioned the deficiencies in the prior art part, provides a kind of mechanical dispersion air-discharge apparatus for road tunnel, and this device, by offer the air channel of a series of employing mechanical exhausts in tunnel, is discharged waste gas from the air channel disperseing one by one.
The object of the invention realizes and being completed by following technical scheme:
A kind of mechanical dispersion air-discharge apparatus for road tunnel, comprise highway tunnel, it is characterized in that: described highway tunnel goes out within the scope of the segment length of portals distance for tunnel total length 10%-30% to offer air channel in outlet section and to tunnel, and described air channel is positioned at top or the side-walls of described highway tunnel; Inside, described air channel is provided with blower fan; Total exhaust air rate in described air channel is no less than 70% of the total ventilation in tunnel.
Air channel is even, continuous distributed.
The quantity in described air channel is at least 5.
The spacing in described air channel is not less than 10m.
The length in described air channel is less than 10m.
Advantage of the present invention a: difficult problem that solves highway tunnel (particularly city tunnel) integrated air exhaust well construction difficulty, tunnel exhaust is adopted to the mode of " breaking the whole up into parts ", disperse discharge to concentrate the impact of discharge on environment to reduce, enriched tunnel toxic emission mode, raising ventilating shaft arranges the feasibility of difficult location tunnel construction.
Brief description of the drawings
Accompanying drawing 1 is embodiment of the present invention principle schematic.
Detailed description of the invention
Feature of the present invention and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that technician's of the same trade understanding:
As shown in Figure 1, label represents respectively: uplink tunnel 1, downlink tunnel 2, tunnel-side 3, tunnel-side 4, air channel: U1, U2, U3, U4, U5, D1, D2, D3, D4, D5.
As shown in Figure 1, highway tunnel is diplopore one way traffic highway tunnel, comprises uplink tunnel 1 and downlink tunnel 2.The present embodiment goes out by tunnel the part that portals place extends internally and is called tunnel outlet section, and for uplink tunnel 1 and downlink tunnel 2, its outlet section lays respectively at the two ends in tunnel.
In uplink tunnel 1, tunnel air is subject to the piston action impact of vehicle, flows to Way out from the entrance of uplink tunnel 1, and fresh air flows into tunnel from tunnel portal, and the automobile exhaust in tunnel concentrates on tunnel outlet section.Therefore air channel should be distributed in highway tunnel outlet section, smoke discharging effect the best like this.But again because air channel approaches out portals and has lost the meaning that air channel is set, so concentrated setting distance tunnel in outlet section in air channel is gone out within the scope of the segment length that portals is tunnel total length 10%-30%.
For reaching the effect of mechanical dispersion air-discharge, the air draft total amount of design upper air duct is not less than 70% of the total ventilation in tunnel.For reaching this object, the quantity in air channel is not less than 5, and is advisable so that quantity is more, and the spacing between air channel is not less than 10m, and spacing is better; The length in air channel should be less than 10m, and less its smoke evacuation ability of length is better; The mechanical air discharge rate in each air channel should not be higher than 30m
3/ s.In practice of construction process, the distance in air channel selects according to concrete operating mode, first to ensure the length in air channel, afterwards in the situation that ensureing that air channel spacing is not less than 10m, make as far as possible air channel evenly, continuous distributed.
The present embodiment, not in conjunction with concrete operating mode in actual tunnel construction, is only the explanation of smoke evacuation principle, is below this example operating principle:
By offering machine air channel U1, U2, U3, U4, the U5 of 5 dispersions in the tunnel-side 3 at uplink tunnel 1 outlet section, be that distance tunnel goes out within the scope of the segment length that portals is tunnel total length 10%-30% in outlet section specifically, above-mentioned air channel is run through respectively tunnel-side 3 and is in communication with the outside, and above-mentioned distributed areas, air channel account for tunnel overall length 20%; Air channel length is 5m; Spacing between two air channels of arbitrary neighborhood is 10m.Air channel U1, U2, U3, U4, U5 inside arrange respectively independently small-sized fan, and its mechanical air discharge rate is 20m
3/ s, discharges waste gas by small-sized fan from air channel U1, U2, U3, U4, U5.Uplink tunnel 1 and downlink tunnel 2 are symmetrical structure, in like manner, also offer air channel D1, D2, D3, D4, the D5 of same size in the tunnel-side 4 of downlink tunnel 2 back segments, are also provided with independently small-sized fan in it.
Description for air channel U1, U2, U3, U4, U5, D1, D2, D3, D4, D5 position in above-described embodiment is also not only confined to this, also be arranged on tunnel top, while is for the small-sized fan of above-mentioned use, can be according to the real needs of engineering, select dissimilar blower fan, as be arranged on roof ventilator on air channel etc., do not repeat them here.
Claims (5)
1. a mechanical dispersion air-discharge apparatus for road tunnel, comprise highway tunnel, it is characterized in that: described highway tunnel goes out within the scope of the segment length of portals distance for tunnel total length 10%-30% to offer some air channels in outlet section and to tunnel, and described air channel is positioned at top or the side-walls of described highway tunnel; Inside, described air channel is provided with blower fan; Total exhaust air rate in described air channel is no less than 70% of the total ventilation in tunnel.
2. a kind of mechanical dispersion air-discharge apparatus for road tunnel according to claim 1, is characterized in that described air channel is even, continuous distributed.
3. a kind of mechanical dispersion air-discharge apparatus for road tunnel according to claim 1 and 2, is characterized in that the quantity in described air channel is at least 5.
4. a kind of mechanical dispersion air-discharge apparatus for road tunnel according to claim 1 and 2, is characterized in that the spacing in described air channel is not less than 10m.
5. a kind of mechanical dispersion air-discharge apparatus for road tunnel according to claim 1 and 2, is characterized in that the length in described air channel is less than 10m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910050829.1A CN101550839B (en) | 2009-05-08 | 2009-05-08 | Mechanical dispersion air-discharge apparatus for road tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910050829.1A CN101550839B (en) | 2009-05-08 | 2009-05-08 | Mechanical dispersion air-discharge apparatus for road tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101550839A CN101550839A (en) | 2009-10-07 |
| CN101550839B true CN101550839B (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910050829.1A Active CN101550839B (en) | 2009-05-08 | 2009-05-08 | Mechanical dispersion air-discharge apparatus for road tunnel |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003262100A (en) * | 2002-03-11 | 2003-09-19 | Kumagai Gumi Co Ltd | Ventilation device in tunnel during construction |
| DE202005018355U1 (en) * | 2005-11-24 | 2006-02-09 | Promat Gmbh | Tunnel cover has lock element in form of plate movable in plane of tunnel cover that can be moved with device for opening passages in cover in its longitudinal plane to open associated passages |
| CN101275468A (en) * | 2008-04-11 | 2008-10-01 | 南京市建设委员会 | City tunnel shaft type natural ventilation and smoke-discharging proof method |
| CN101349158A (en) * | 2008-05-15 | 2009-01-21 | 陕西科技大学 | Energy-saving environment protection type tunnel automatic exhauster |
-
2009
- 2009-05-08 CN CN200910050829.1A patent/CN101550839B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003262100A (en) * | 2002-03-11 | 2003-09-19 | Kumagai Gumi Co Ltd | Ventilation device in tunnel during construction |
| DE202005018355U1 (en) * | 2005-11-24 | 2006-02-09 | Promat Gmbh | Tunnel cover has lock element in form of plate movable in plane of tunnel cover that can be moved with device for opening passages in cover in its longitudinal plane to open associated passages |
| CN101275468A (en) * | 2008-04-11 | 2008-10-01 | 南京市建设委员会 | City tunnel shaft type natural ventilation and smoke-discharging proof method |
| CN101349158A (en) * | 2008-05-15 | 2009-01-21 | 陕西科技大学 | Energy-saving environment protection type tunnel automatic exhauster |
Non-Patent Citations (2)
| Title |
|---|
| 张铭鑫等.高速公路隧道竖井纵向式通风研讨.《中国科技信息》.2007,(第19期),67-68. * |
| 李刚等.特长公路隧道通风新模式.《公路》.2008,(第3期),201-207. * |
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| Publication number | Publication date |
|---|---|
| CN101550839A (en) | 2009-10-07 |
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