CN101509391A - Highway tunnel exhaust port setup structure - Google Patents
Highway tunnel exhaust port setup structure Download PDFInfo
- Publication number
- CN101509391A CN101509391A CNA2009100475993A CN200910047599A CN101509391A CN 101509391 A CN101509391 A CN 101509391A CN A2009100475993 A CNA2009100475993 A CN A2009100475993A CN 200910047599 A CN200910047599 A CN 200910047599A CN 101509391 A CN101509391 A CN 101509391A
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- CN
- China
- Prior art keywords
- smoke
- smoke vent
- tunnel
- exhaust port
- described smoke
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention relates to ventilation and fire control of road tunnels, in particular to a setting structure of a smoke outlet of the road tunnel, comprising a smoke vent and a plurality of smoke outlets arranged on the smoke vent, the smoke vent is arranged along the length direction of the tunnel and is communicated with a smoke exhaust blower. The setting structure of the invention is characterized by further comprising a fire position detecting device, the spacing between smoke outlets ranges from 30m-120m, the area of the smoke outlet is 1m <2>-10m <2>; the setting device of the invention has the advantages of optimizing smoke exhaust effect of the road tunnel, improving smoke control capacity and reducing influence range thereof on the basis of the same smoke exhaust configuration, effectively controlling proliferation of smoke within the range of 150m, maintaining fine smoke layering and providing relatively good safe space for the specialized personnel.
Description
Technical field
The present invention relates to highway tunnel ventilation fire-fighting class, specifically relate to a kind of structure that is provided with of highway tunnel exhaust port.
Background technology
Highway tunnel is a hemi-closure space, and comburant mostly is gasoline, diesel oil etc., in case breaking out of fire, high temperature that is produced and poison gas are extremely difficult in time to be got rid of, and can cause very big injury to facility and the personnel that are in the underground space, easily causes serious accident.Therefore ventilation smoke exhaust is the most important measure of tunnel fire-fighting.In highway tunnel, suitable fume control system must be arranged.Along the length of tunnel direction at the top or other positions smoke vent, tunnel top position are set to offer a series of smoke vent openings are a kind of effective tunnel Flue Gas Control Technology.The size of smoke vent opening, spacing all have material impact to the control of flue gas, how to judge accurately that burning things which may cause a fire disaster point position is to open the link important in the structure that is provided with that suitable smoke vent opening also is a smoke vent opening.
Summary of the invention
The objective of the invention is provides a kind of structure that is provided with of highway tunnel exhaust port according to above-mentioned the deficiencies in the prior art part, and this structure can effectively be controlled Flue Gas Diffusion in the 150m scope, for personnel create the safe space to greatest extent.
The object of the invention realizes being finished by following technical scheme:
A kind of highway tunnel exhaust port structure is set, comprise smoke vent and plurality of rows mouth on it is set, described smoke vent is provided with along the length of tunnel direction, described smoke vent is communicated with smoke extractor exhaust fan, it is characterized in that: the described structure that is provided with also comprises the fire location sniffer, spacing between the described smoke vent opening is 30m-120m, and described smoke vent area is 1m
2-10m
2
Spacing between the described smoke vent opening is 60m, and described smoke vent opening is the square of 2m * 2m.
Described smoke vent is positioned at the top in tunnel, and described smoke vent opening is positioned at the downside middle position of described smoke vent.
Advantage of the present invention: optimize the highway tunnel smoke discharging effect, under identical smoke evacuation configuring condition, improve the flue gas control ability, reduce the flue gas influence basin, effectively the control Flue Gas Diffusion is in the 150m scope, and it is good that the flue gas layering keeps, for personnel provide safe space preferably.
Description of drawings
Accompanying drawing 1 is the embodiment of the invention 1 principle schematic.
The specific embodiment
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 1-6 represents respectively: tunnel 1, smoke vent 2, smoke extractor exhaust fan 3, smoke vent opening: p1, p2, p3, p4, p5, p6.
The selection of above-mentioned each device parameter is as follows: the sectional area of smoke vent 2 is 11m
2, the air quantity of smoke extractor exhaust fan 3 is 80m
3/ s-130m
3/ s, the angular range of smoke vent opening and smoke vent 2 are 0 degree-90 degree, and the area of smoke vent opening (p1, p2, p3, p4, p5, p6) is at 1m
2-10m
2Between.Spacing between the adjacent smoke vent opening is 30m-120m, and its concrete choosing value should be determined according to mode of transportation, fire scale, tunnel longitudinal gradient, spatial altitude and section, exhaust smoke level, smoke vent opening size etc., should set up numerical model during specific design and carry out analog computation.
Specifically choosing value of each device parameter is as follows in the present embodiment: the smoke vent opening cross section is the square of 2m * 2m; Spacing between the adjacent smoke vent opening is 60m; The air quantity of smoke extractor exhaust fan 3 is 100m
3/ s.
As shown in Figure 1, the length direction along single file tunnel 1 is provided with a smoke vent 2 in single file tunnel 1 top shelf.Smoke vent 2 is communicated with smoke extractor exhaust fan 3.The middle position of the downside of smoke vent 2 has evenly, smoke vent opening p1, the p2 of continuous distributed, p3, p4, p5, p6, and the equal vertical row flue 2 of above-mentioned smoke vent opening is provided with, and smoke vent opening p1, p2, p3, p4, p5, p6 open closed by remote control mode.Position when 1 top also is equipped with the fire location sniffer and determines that fire takes place in the tunnel.
Present embodiment also is provided with central control room, the above-mentioned fire location sniffer of its control connection, smoke vent opening p1, p2, p3, p4, p5, p6 and smoke extractor exhaust fan 3.Specifically, central control room can be determined fire location according to the fire location sniffer that tunnel top is installed, and is presented at after the warning on the monitor screen of tunnel central control room, and smoke evacuation system enters the fire operational mode that sets in advance after artificial affirmation.
The fire location sniffer that uses in the foregoing description, can be according to the real needs of engineering, select dissimilar sniffers, as temperature detection, smoke detection or the like, the selection to smoke vent opening quantity also not only is confined to this in the foregoing description simultaneously, satisfying under the situation of other conditions, according to concrete operating mode, quantity is increased and decreased arbitrarily, do not repeat them here.
Claims (3)
1. a highway tunnel exhaust port is provided with structure, comprise smoke vent and plurality of rows mouth on it is set, described smoke vent is provided with along the length of tunnel direction, described smoke vent is communicated with smoke extractor exhaust fan, it is characterized in that: the described structure that is provided with also comprises the fire location sniffer, spacing between the described smoke vent opening is 30m-120m, and described smoke vent area is 1m
2-10m
2
A kind of highway tunnel exhaust port according to claim 1 structure is set, it is characterized in that the spacing between the described smoke vent opening is 60m, described smoke vent opening is the square of 2m * 2m.
A kind of highway tunnel exhaust port according to claim 1 structure is set, it is characterized in that described smoke vent is positioned at the top in tunnel, described smoke vent opening is positioned at the downside middle position of described smoke vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100475993A CN101509391A (en) | 2009-03-13 | 2009-03-13 | Highway tunnel exhaust port setup structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100475993A CN101509391A (en) | 2009-03-13 | 2009-03-13 | Highway tunnel exhaust port setup structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101509391A true CN101509391A (en) | 2009-08-19 |
Family
ID=41001910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100475993A Pending CN101509391A (en) | 2009-03-13 | 2009-03-13 | Highway tunnel exhaust port setup structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101509391A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022124A (en) * | 2009-09-16 | 2011-04-20 | 上海市政工程设计研究总院 | Method for connecting shield tunnel duct piece and prefabricated flue header sheet |
| CN103277135A (en) * | 2013-04-26 | 2013-09-04 | 西安建筑科技大学 | Tunnel fire escape system with breathing zone air supplying and lower portion air supplying combined |
| CN104533498A (en) * | 2014-12-18 | 2015-04-22 | 西南交通大学 | Point exhaust type subway tunnel fire ventilation and smoke exhaust system |
| CN111027176A (en) * | 2019-11-07 | 2020-04-17 | 武汉科技大学 | Method for calculating flue gas countercurrent length of tunnel side-direction key smoke discharge fire |
-
2009
- 2009-03-13 CN CNA2009100475993A patent/CN101509391A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022124A (en) * | 2009-09-16 | 2011-04-20 | 上海市政工程设计研究总院 | Method for connecting shield tunnel duct piece and prefabricated flue header sheet |
| CN102022124B (en) * | 2009-09-16 | 2014-02-05 | 上海市政工程设计研究总院 | Method for connecting shield tunnel duct piece and prefabricated flue header sheet |
| CN103277135A (en) * | 2013-04-26 | 2013-09-04 | 西安建筑科技大学 | Tunnel fire escape system with breathing zone air supplying and lower portion air supplying combined |
| CN104533498A (en) * | 2014-12-18 | 2015-04-22 | 西南交通大学 | Point exhaust type subway tunnel fire ventilation and smoke exhaust system |
| CN111027176A (en) * | 2019-11-07 | 2020-04-17 | 武汉科技大学 | Method for calculating flue gas countercurrent length of tunnel side-direction key smoke discharge fire |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20090819 |