CN101550837B - Mechanical dispersion air-discharge method for road tunnel - Google Patents
Mechanical dispersion air-discharge method for road tunnel Download PDFInfo
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- CN101550837B CN101550837B CN 200910050826 CN200910050826A CN101550837B CN 101550837 B CN101550837 B CN 101550837B CN 200910050826 CN200910050826 CN 200910050826 CN 200910050826 A CN200910050826 A CN 200910050826A CN 101550837 B CN101550837 B CN 101550837B
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Abstract
The invention relates to a mechanical dispersion air-discharge method for road tunnel belonging to the road tunnel ventilation field. The method comprises: forming a plurality of wind channels on the top or side wall of road tunnel; then mounting independent blower fan in each wind channel which can rotate to discharge the waste gas in the tunnel by the through the wind channel. 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 the highway tunnel ventilation class, specifically relate to a kind of method of highway tunnel mechanical dispersion air-discharge.
Background technology
In highway tunnel, the vehicle that goes is discharging harmful exhaust and flue dust constantly, when the harmful exhaust of discharging will bring harm with dust concentration to the driver and conductor during above certain value, influences healthy and traffic safety.Therefore, for guaranteeing the required air ambient sanitary standard of the normal operation in tunnel, the tunnel planted agent ventilate.Because the automobile exhaust that certain-length has been concentrated in the tunnel, when tunnel portal had the resident, tunnel waste gas did not allow to concentrate discharging at portals.Therefore, city tunnel is provided with waste gas and concentrates the discharging ventilating shaft going out portals, makes the most waste gas in tunnel concentrate discharging through ventilating shaft, reduces the influence near the environment portals.
Go out in the addressing of cave section air draft well in the tunnel, particularly in the city, often receive various condition restriction, as view, resident come down hard upon, various reasons such as planning, be difficult to choose suitable well location.
Summary of the invention
The objective of the invention is the weak point according to above-mentioned prior art, a kind of method of highway tunnel mechanical dispersion air-discharge is provided, this method is discharged waste gas from the air channel that disperses through offer the air channel of a series of employing mechanical exhausts at tunnel outlet section one by one.
The object of the invention realizes being accomplished by following technical scheme:
A kind of method of highway tunnel mechanical dispersion air-discharge; Comprise highway tunnel; It is characterized in that: this method is offered a series of air channels in the top or the side-walls of said highway tunnel, the set inside blower fan independently in said air channel afterwards, and blower fan rotates discharges waste gas in the tunnel through the air channel.
Said air channel is arranged in the outlet section in said tunnel and goes out the portals distance in the segment length scope of tunnel total length 10%-30% to the tunnel.
Said air channel is even, continuous distributed.
Total exhaust air rate in said air channel is no less than 70% of the total ventilation in tunnel.
The quantity in said air channel is at least 5.
The spacing in said air channel is not less than 10m.
The length in said air channel is less than 10m.
Advantage of the present invention: solve highway tunnel (particularly city tunnel) integrated air exhaust well construction problem of difficult; The tunnel exhaust is adopted the mode of " breaking the whole up into parts "; Disperse discharging to concentrate the influence of discharging to environment to reduce; Enrich tunnel toxic emission mode, improved the feasibility that ventilating shaft is provided with difficult location tunnel construction.
Description of drawings
Accompanying drawing 1 is an embodiment of the invention principle schematic.
The specific embodiment
Through embodiment characteristic of the present invention and other correlated characteristic are done further explain below in conjunction with accompanying drawing, so that technician's of the same trade understanding:
As shown in Figure 1, label is represented 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 a diplopore one way traffic highway tunnel, comprises uplink tunnel 1 and downlink tunnel 2.Present embodiment goes out the part that the portals place extends internally with the tunnel 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 receives the piston action influence of vehicle, and mobile to Way out from the inlet of uplink tunnel 1, fresh air flows into the tunnel from tunnel portal, and the automobile exhaust in the tunnel concentrates on tunnel outlet section.So the air channel should be distributed in the highway tunnel outlet section, smoke discharging effect is best like this.But, be arranged on outlet section middle distance tunnel and go out in the segment length scope that portals is tunnel total length 10%-30% so concentrate the air channel again because the air channel has then lost the meaning that the air channel is set near going out portals.
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 purpose, the quantity in air channel is not less than 5, and is advisable so that quantity is more, and the spacing between the air channel is not less than 10m, and spacing is better; The length in air channel should be less than 10m, and more little its smoke evacuation ability of length is good more; The mechanical exhaust amount in each air channel should not be higher than 30m
3/ s.In the practice of construction process, the distance in air channel is selected and should at first be guaranteed the length in air channel according to concrete operating mode, is guaranteeing that the air channel spacing is not less than under the situation of 10m afterwards, make as far as possible the air channel evenly, continuous distributed.
Present embodiment does not combine concrete operating mode in the actual tunnel construction, is merely the explanation of smoke evacuation principle, below is this instance operating principle:
At first on the tunnel-side 3 of uplink tunnel 1 outlet section, offer machine air channel U1, U2, U3, U4, the U5 of 5 dispersions; Promptly be specifically in outlet section middle distance tunnel goes out the segment length scope that portals is tunnel total length 10%-30%; Above-mentioned air channel is run through tunnel-side 3 respectively and is in communication with the outside, and above-mentioned distributed areas, air channel account for tunnel length overall 20%; Air channel length is 5m; Spacing between adjacent two air channels is 10m arbitrarily.Uplink tunnel 1 is a symmetrical structure with downlink tunnel 2, in like manner, also offers air channel D1, D2, D3, D4, the D5 of same size size on the tunnel-side 4 of downlink tunnel 2 back segments.U1, U2, U3, U4, U5, D1, D2, D3, D4, D5 inside are provided with independently small-sized fan respectively in the air channel afterwards, and its mechanical exhaust amount is 20m
3/ s.Can be through small-sized fan with waste gas U1, U2, U3, U4, U5, D1, D2, D3, D4, discharge of D5 mechanical dispersion from the air channel.
Description for air channel U1, U2, U3, U4, U5, D1, D2, D3, D4, D5 position in the foregoing description also not only is confined to this; Also it is arranged on the tunnel roof; While is for the small-sized fan of above-mentioned use; Can select dissimilar blower fans, as be arranged on roof ventilator on the air channel or the like according to the real needs of engineering.
Claims (5)
1. the method for a highway tunnel mechanical dispersion air-discharge; Comprise highway tunnel; It is characterized in that: this method is offered a series of air channels in the top or the side-walls of said highway tunnel; The set inside blower fan independently in said air channel afterwards; Blower fan rotates discharges waste gas in the tunnel through the air channel, said air channel is arranged in the outlet section in said tunnel and goes out the portals distance to the tunnel is that total exhaust air rate in said air channel is no less than 70% of the total ventilation in tunnel in the segment length scope of tunnel total length 10%-30%.
2. the method for a kind of highway tunnel mechanical dispersion air-discharge according to claim 1 is characterized in that said air channel is even, continuous distributed.
3. the method for a kind of highway tunnel mechanical dispersion air-discharge according to claim 1 is characterized in that the quantity in said air channel is at least 5.
4. the method for a kind of highway tunnel mechanical dispersion air-discharge according to claim 1 is characterized in that the spacing in said air channel is not less than 10m.
5. the method for a kind of highway tunnel mechanical dispersion air-discharge according to claim 1, the length that it is characterized in that said air channel is less than 10m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910050826 CN101550837B (en) | 2009-05-08 | 2009-05-08 | Mechanical dispersion air-discharge method for road tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910050826 CN101550837B (en) | 2009-05-08 | 2009-05-08 | Mechanical dispersion air-discharge method for road tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101550837A CN101550837A (en) | 2009-10-07 |
| CN101550837B true CN101550837B (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910050826 Active CN101550837B (en) | 2009-05-08 | 2009-05-08 | Mechanical dispersion air-discharge method for road tunnel |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691562B (en) * | 2018-04-19 | 2019-03-15 | 济南城建集团有限公司 | Construction city tunnel cools down ventilating system between a kind of multi-region |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4223772A1 (en) * | 1992-01-10 | 1993-07-15 | Hoelter Heinz | Underground-mine suction-ventilator system has dust-extractor - and has fan following extractor giving greater suction than that exhausting air |
| JP2003262100A (en) * | 2002-03-11 | 2003-09-19 | Kumagai Gumi Co Ltd | Ventilation device in tunnel during construction |
| CN101054902A (en) * | 2007-05-14 | 2007-10-17 | 上海市隧道工程轨道交通设计研究院 | Ventilation and purification style for tunnel low air shaft |
| CN101275468A (en) * | 2008-04-11 | 2008-10-01 | 南京市建设委员会 | Natural ventilation and smoke prevention and exhaust method for urban tunnel shaft |
| KR100886350B1 (en) * | 2008-07-15 | 2009-03-03 | (주)비엔텍아이엔씨 | Intelligent selective supply and exhaust system for tunnel ventilation |
-
2009
- 2009-05-08 CN CN 200910050826 patent/CN101550837B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4223772A1 (en) * | 1992-01-10 | 1993-07-15 | Hoelter Heinz | Underground-mine suction-ventilator system has dust-extractor - and has fan following extractor giving greater suction than that exhausting air |
| JP2003262100A (en) * | 2002-03-11 | 2003-09-19 | Kumagai Gumi Co Ltd | Ventilation device in tunnel during construction |
| CN101054902A (en) * | 2007-05-14 | 2007-10-17 | 上海市隧道工程轨道交通设计研究院 | Ventilation and purification style for tunnel low air shaft |
| CN101275468A (en) * | 2008-04-11 | 2008-10-01 | 南京市建设委员会 | Natural ventilation and smoke prevention and exhaust method for urban tunnel shaft |
| KR100886350B1 (en) * | 2008-07-15 | 2009-03-03 | (주)비엔텍아이엔씨 | Intelligent selective supply and exhaust system for tunnel ventilation |
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| Publication number | Publication date |
|---|---|
| CN101550837A (en) | 2009-10-07 |
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