CN101509392A - Highway tunnel exhaust port opening method - Google Patents
Highway tunnel exhaust port opening method Download PDFInfo
- Publication number
- CN101509392A CN101509392A CNA2009100476017A CN200910047601A CN101509392A CN 101509392 A CN101509392 A CN 101509392A CN A2009100476017 A CNA2009100476017 A CN A2009100476017A CN 200910047601 A CN200910047601 A CN 200910047601A CN 101509392 A CN101509392 A CN 101509392A
- Authority
- CN
- China
- Prior art keywords
- smoke
- smoke vent
- tunnel
- vent opening
- fire
- 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.)
- Pending
Links
Images
Landscapes
- Ventilation (AREA)
Abstract
The invention relates to ventilation and fire control of road tunnels, in particular to a method for initiating a smoke outlet of the road tunnel. The method comprises a smoke vent arranged along the length direction of tunnel and a plurality of smoke outlets arranged at the top of the tunnel, wherein, the smoke vent is internally provided with a smoke exhaust blower, the smoke outlets are communicated by the smoke vent; the method is characterized in that the initiating method is : when a fire source appears, after the fire source position is fixed, two smoke outlets at the lower reaches of a fire source point and a smoke outlet at the upper reaches of the fire source point are initiated; the method has the advantages of optimizing smoke exhaust effect of the road tunnel, improving smoke control capacity, 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 highway tunnel exhaust port opening method.
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.But all there is material impact the position of after fire location is determined, open which air port, opening the air port to the control of flue gas.Too much the opened smoke-discharging mouth has then reduced the smoke exhaust efficiency of effective smoke vent opening, and the improper or lazy weight in the position of opened smoke-discharging mouth then is not enough to flue gas and heat are effectively dredged out the tunnel.At present the setting and the corresponding startup method of smoke vent opening still there is not technical scheme effectively.Disclosed a kind of tunnel smoke exhaust method in the Chinese patent as publication number: CN1865662, only simple description fire are to open near all smoke evacuation air-valve and smoke extractor exhaust fans in the segment length scope of fire vehicle.
Summary of the invention
The objective of the invention is provides a kind of highway tunnel exhaust port opening method according to above-mentioned the deficiencies in the prior art part, and this method 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 opening method, comprise smoke vent and the plurality of rows mouth that is arranged on tunnel top along the setting of length of tunnel direction, be provided with smoke extractor exhaust fan in the described smoke vent, be connected by described smoke vent between the smoke vent opening, it is characterized in that: described startup method is:
When burning things which may cause a fire disaster occurred, after fire location was determined, unlatching was positioned at two smoke vent openings in burning things which may cause a fire disaster point downstream, and is positioned at the smoke vent opening in burning things which may cause a fire disaster point upstream.
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.
In the time of under the burning things which may cause a fire disaster point is positioned at smoke vent opening, open the smoke vent opening of burning things which may cause a fire disaster point top simultaneously.
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 I;
Accompanying drawing 2 is the embodiment of the invention 1 principle schematic II;
Accompanying drawing 3 is the embodiment of the invention 2 principle schematic I;
Accompanying drawing 4 is the embodiment of the invention 2 principle schematic II.
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:
Shown in Fig. 1-4, label 1-6 represents respectively: single file tunnel 1, smoke vent 2, smoke extractor exhaust fan 3, updrift side 4, downstream direction 5, burning things which may cause a fire disaster point 6, single tube duplicate rows tunnel 7; Smoke vent opening: p1, p2, p3, p4, p5, p6.
The selection of each parameter is as follows among the following embodiment: 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.
Embodiment 1: present embodiment is that the smoke vent opening of single file highway tunnel starts scheme.In single file tunnel 1, tunnel air is subjected to the piston action influence of vehicle, and 1 inlet flows to Way out from the tunnel.So present embodiment 1 is considered the flow direction of tunnel air, the inlet in single file tunnel 1 is called updrift side 4, outlet is called downstream direction 5.
Specifically choosing value of each device parameter is as follows: 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 at 1 top, single file tunnel.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 and detects, controls above-mentioned fire location sniffer, smoke vent opening and smoke extractor exhaust fan 3, and starts smoke vent opening p1, p2, p3, p4, p5, p6 by following working procedure:
Before burning things which may cause a fire disaster point 6 occurred, smoke vent 2, smoke extractor exhaust fan 3 and smoke vent opening p1, p2, p3, p4, p5, p6 all were in closed condition, and the state of each point in the single file tunnel 1 is opened and monitored to the fire location sniffer.
After burning things which may cause a fire disaster point 6 occurs, determine fire location, be presented at after the warning on the monitor screen of tunnel central control room that smoke evacuation system enters the fire operational mode that sets in advance after artificial affirmation according to the fire location sniffer that tunnel top is installed:
As shown in Figure 1, when burning things which may cause a fire disaster point 6 is between any adjacent two smoke vent openings, for example between smoke vent opening p3, p4, control is opened burning things which may cause a fire disaster and is put smoke vent opening p3 in 6 upstreams and downstream two smoke vent opening p4, p5, start smoke extractor exhaust fan 3 simultaneously, the smog that produces that will burn under the effect of smoke extractor exhaust fan 3 is discharged single file tunnel 1 by smoke vent 2.
As shown in Figure 2, in the time of under burning things which may cause a fire disaster point 6 is positioned at any smoke vent opening, for example be positioned at smoke vent opening p4 below, control is opened the smoke vent opening p4 of burning things which may cause a fire disaster point top and is opened smoke vent opening p3 in burning things which may cause a fire disaster point upstream and downstream two smoke vent opening p5, p6, starts smoke extractor exhaust fan 3 simultaneously.Burning things which may cause a fire disaster point 6 should start according to being positioned at smoke vent opening below pattern very near smoke vent opening length situation.
Adopt above-mentioned operational mode can effectively control Flue Gas Diffusion in the 150m scope, it is good that the flue gas layering keeps, for personnel provide safe space preferably.
Embodiment 2: present embodiment is that the smoke vent opening in single hole duplicate rows tunnel 7 starts scheme, in duplicate rows tunnel 7, effect when tunnel air is subjected to up vehicle and descending vehicle, can ignore air flows for the influence of smoke evacuation, but describe for simplifying, present embodiment will single hole duplicate rows tunnel 7 a portals be called updrift side, another portals is called downstream direction.Though the tunnel is different, the smoke evacuation principle is identical, and the parameter of equipment also can adopt identical configuration.So except that smoke vent opening Starting mode difference, other devices are provided with identical with embodiment 1 in the present embodiment.
Before burning things which may cause a fire disaster point 6 occurred, smoke vent 2, smoke extractor exhaust fan 3 and smoke vent opening p1, p2, p3, p4, p5, p6 all were in closed condition, and the state of each points in the duplicate rows tunnel 7 is opened and monitored to the fire location sniffer.
After burning things which may cause a fire disaster point 6 occurs, determine fire location, be presented at after the warning on the monitor screen of tunnel central control room that smoke evacuation system enters the fire operational mode that sets in advance after artificial affirmation according to the fire location sniffer that install at 7 tops, single hole duplicate rows tunnel:
As shown in Figure 3, when burning things which may cause a fire disaster point 6 is between any adjacent two smoke vent openings, for example between smoke vent opening p3, p4, open burning things which may cause a fire disaster point smoke vent opening p3 in upstream and the smoke vent opening p4 in downstream, start smoke extractor exhaust fan 3 simultaneously, the smog that produces that will burn under the effect of smoke extractor exhaust fan 3 is discharged single hole duplicate rows tunnel 7 by smoke vent 2.
As shown in Figure 4, in the time of under burning things which may cause a fire disaster point 6 is positioned at any smoke vent opening, for example be positioned at smoke vent opening p4 below, open the smoke vent opening p4 of burning things which may cause a fire disaster point top and open the smoke vent opening p3 in burning things which may cause a fire disaster point upstream and the smoke vent opening p5 in downstream, start smoke extractor exhaust fan 3 simultaneously., start very when the smoke vent opening as burning things which may cause a fire disaster point 6 according to being positioned at smoke vent opening below pattern.
Obviously, among the embodiment 2, can control the unlatching quantity of smoke vent opening according to factors such as exhaust smoke level and air port size, spacings flexibly, can open each two smoke vent openings smoke evacuation of fire point both sides in case of necessity, its Starting mode is identical.
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 (4)
1. highway tunnel exhaust port opening method, comprise smoke vent and the plurality of rows mouth that is arranged on tunnel top along the setting of length of tunnel direction, be provided with smoke extractor exhaust fan in the described smoke vent, be connected by described smoke vent between the smoke vent opening, it is characterized in that: described startup method is:
When burning things which may cause a fire disaster occurred, after fire location was determined, unlatching was positioned at two smoke vent openings in burning things which may cause a fire disaster point downstream, and is positioned at the smoke vent opening in burning things which may cause a fire disaster point upstream.
2. a kind of highway tunnel exhaust port opening method according to claim 1 is characterized in that the spacing between the described smoke vent opening is 30m-120m, and described smoke vent area is 1m
2-10m
2
3. a kind of highway tunnel exhaust port opening method according to claim 2 is characterized in that the spacing between the described smoke vent opening is 60m, and described smoke vent opening is the square of 2m * 2m.
4. a kind of highway tunnel exhaust port opening method according to claim 1 when it is characterized in that under the burning things which may cause a fire disaster point is positioned at smoke vent opening, is opened the smoke vent opening of burning things which may cause a fire disaster point top simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100476017A CN101509392A (en) | 2009-03-13 | 2009-03-13 | Highway tunnel exhaust port opening method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100476017A CN101509392A (en) | 2009-03-13 | 2009-03-13 | Highway tunnel exhaust port opening method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101509392A true CN101509392A (en) | 2009-08-19 |
Family
ID=41001911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100476017A Pending CN101509392A (en) | 2009-03-13 | 2009-03-13 | Highway tunnel exhaust port opening method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101509392A (en) |
Cited By (8)
| 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 |
| CN102518463A (en) * | 2011-11-11 | 2012-06-27 | 上海市隧道工程轨道交通设计研究院 | Recycling type smoke control method of tunnel |
| CN106121707A (en) * | 2016-08-19 | 2016-11-16 | 中铁隧道勘测设计院有限公司 | The most two-tube municipal administration and highway are grown up the ventilating system of shield tunnel and method of ventilation |
| CN106168140A (en) * | 2016-08-19 | 2016-11-30 | 中铁隧道勘测设计院有限公司 | Single tube levels municipal administration under water and highway are grown up shield tunnel ventilating system and method |
| CN108590729A (en) * | 2018-03-12 | 2018-09-28 | 中铁第四勘察设计院集团有限公司 | A kind of high hermetic type smoke outlet device |
| CN110459116A (en) * | 2019-07-22 | 2019-11-15 | 武汉科技大学 | A kind of multifunctional tunnel fire side emphasis smoke evacuation analog platform |
| 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 |
| CN111720152A (en) * | 2020-06-10 | 2020-09-29 | 中铁第五勘察设计院集团有限公司 | Tunnel smoke exhaust system and tunnel smoke exhaust control method |
-
2009
- 2009-03-13 CN CNA2009100476017A patent/CN101509392A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN102518463A (en) * | 2011-11-11 | 2012-06-27 | 上海市隧道工程轨道交通设计研究院 | Recycling type smoke control method of tunnel |
| CN102518463B (en) * | 2011-11-11 | 2014-01-01 | 上海市隧道工程轨道交通设计研究院 | Recycling type smoke control method of tunnel |
| CN106121707B (en) * | 2016-08-19 | 2019-04-19 | 中铁第六勘察设计院集团有限公司 | Underwater two-tube municipal administration and highway are grown up the ventilating system and method for ventilation of shield tunnel |
| CN106121707A (en) * | 2016-08-19 | 2016-11-16 | 中铁隧道勘测设计院有限公司 | The most two-tube municipal administration and highway are grown up the ventilating system of shield tunnel and method of ventilation |
| CN106168140A (en) * | 2016-08-19 | 2016-11-30 | 中铁隧道勘测设计院有限公司 | Single tube levels municipal administration under water and highway are grown up shield tunnel ventilating system and method |
| CN106168140B (en) * | 2016-08-19 | 2019-04-19 | 中铁第六勘察设计院集团有限公司 | Underwater single tube upper and lower level municipal administration and highway are grown up shield tunnel ventilating system and method |
| CN108590729A (en) * | 2018-03-12 | 2018-09-28 | 中铁第四勘察设计院集团有限公司 | A kind of high hermetic type smoke outlet device |
| CN108590729B (en) * | 2018-03-12 | 2023-08-01 | 中铁第四勘察设计院集团有限公司 | High airtight type smoke outlet device |
| CN110459116A (en) * | 2019-07-22 | 2019-11-15 | 武汉科技大学 | A kind of multifunctional tunnel fire side emphasis smoke evacuation analog platform |
| 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 |
| CN111720152A (en) * | 2020-06-10 | 2020-09-29 | 中铁第五勘察设计院集团有限公司 | Tunnel smoke exhaust system and tunnel smoke exhaust control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101509392A (en) | Highway tunnel exhaust port opening method | |
| CN101737076A (en) | Sectional type tunnel smoke exhaust system and method by water curtain separation | |
| CN104153805B (en) | Smoke exhaust method in tunnel | |
| CN103939124B (en) | One single-tube double-layer shield traffic tunnel ventilation smoke exhaust and evacuating system under water | |
| CN203962019U (en) | Smoke evacuation system in tunnel | |
| CN109513300B (en) | Comprehensive treatment system for unorganized pollutant discharge of coke oven | |
| CN105107103B (en) | A kind of integrated form note nitrogen control oxygen firebreak device | |
| CN108533305B (en) | The ventilation smoke exhaust method of train fire in a kind of Subway Tunnel | |
| CN106540543B (en) | Multi-pass selective catalytic reduction denitration device | |
| CN204107661U (en) | A kind of forming machine waste gas secondary electrostatic cleaning system | |
| CN101509391A (en) | Highway tunnel exhaust port setup structure | |
| CN105201256B (en) | Underground stereo garage parking ventilation and exhaust device | |
| CN108005703A (en) | A kind of controllable air regulator ventilation blowdown smoke evacuation system in tunnel | |
| CN102538120B (en) | Safe escape system of enclosed airflow channel at L-shaped building member edge | |
| CN207526519U (en) | Grotto low and intermediate level radioac disposal site accident emergency radioactivity non-proliferation system | |
| CN207437115U (en) | A kind of underground railway tunnel fire ventilation smoke extraction system | |
| CN106168140B (en) | Underwater single tube upper and lower level municipal administration and highway are grown up shield tunnel ventilating system and method | |
| CN103657303B (en) | Helical ring spray painting groove air absorbing body absorption plant | |
| CN204932656U (en) | A kind of integrated form note nitrogen control oxygen firebreak device | |
| CN204159170U (en) | Pulsed jet cloth filter | |
| CN210977693U (en) | Gas turbine air intake system | |
| CN204974203U (en) | Imitate penetrating board type wet -type defroster of high -pressure negative corona by force | |
| CN102488990A (en) | Warehouse-in-warehouse fire-fighting device and method | |
| CN213928407U (en) | System of discharging fume of traffic tunnel interval focus of growing up | |
| CN203764018U (en) | Composite wall flow type honeycomb ceramic gas dust removing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |