CN1580493B - Two-hole one-way side-pressure ventilation smoke-discharging method for road tunnel - Google Patents
Two-hole one-way side-pressure ventilation smoke-discharging method for road tunnel Download PDFInfo
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- CN1580493B CN1580493B CN 200410010279 CN200410010279A CN1580493B CN 1580493 B CN1580493 B CN 1580493B CN 200410010279 CN200410010279 CN 200410010279 CN 200410010279 A CN200410010279 A CN 200410010279A CN 1580493 B CN1580493 B CN 1580493B
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Abstract
A side pressure ventilation, smoke exhaust method for two-tunnel one-way highway tunnels includes designing several uniform transverse channels with air doors between the two tunnels arranging quick inverted flor shooting longitudinal blower fans uniformly between the two tunnels at the four openings, when their lectotypes can't reach four times, the diameter of the blower fan can be reduced to match up it to get the balance. In ordinary operation blockage or fire in the tunnel the aim of side-pressure ventilation and smoke-discharging and fire protection is realized, the tunnel has fine ventilation.
Description
Technical field
The present invention relates to the highway tunnel ventilation fire prevention, a kind of diplopore one way traffic highway tunnel side pressure ventilation smoke exhaust method.
Background technology
Highway tunnel is a semiclosed body, and comburant mostly is gasoline, diesel oil, easily causes serious accident, and threatening maximum to life is smog, and next is only high temperature, so ventilation smoke exhaust is the most important measure of tunnel fire-fighting.World-shaking fire incident all took place in Blanc tunnel, pottery grace tunnel, the St.Gotthard Tunnel in Europe, and lesson is painful.The speed of ventilation smoke exhaust ability and eliminating accident is two big key elements of Road Tunnel Safety thus.The highway tunnel ventilation mode is divided into full transverse type, half transverse type and vertical three kinds of formulas.The one way traffic tunnel is because the Piston Wind that has vehicle movement to produce can be utilized, and wind direction is fixed during fire, is a kind of mode of economic and reliable; One way traffic both domestic and external tunnel multiselect longitudinal ventilation mode.Vertically formula is ventilated and can be divided into two kinds of nozzle formula longitudinal ventilation and jetting type longitudinal ventilations again.Because the arch, tunnel has headroom to utilize, therefore jet blower, economy, efficient, easy for installation, select jetting type longitudinal ventilation mode for use in addition.General highway tunnel is being arranged as this blower fan now: evenly arrange, promptly evenly be installed in the required blower fan of tunnel ventilation in the tunnel by length; The hole centralized arrangement is promptly installed the required blower fan of tunnel ventilation concentratedly at two tunnel portals import department.But existing blower fan arranges that existing problems are: when fire takes place, must judge the position that fire takes place, determine to open transverse passage-way, increase and judged and the operating time; Flee from distance before the fire zone, the orientation is few, when fire took place, the personnel before the fire zone can only flee from from the tunnel hole outlet, distance is 0.5-2KM, and can not flee from from transverse passage-way easily; Fire proparea fire-fighting and rescue enters the mouth less, distance, and when fire took place, the fire fighter can only enter the fire proparea from tunnel portal, can not enter into the fire proparea fast from transverse passage-way and carry out rescue work.
Existing blower fan is that the inventor declared " jet blower counter-rotating check mechanism " patent in 2000 (patent No.: ZL00254714.7), this blower fan is the blower fan of jetting type longitudinal ventilation, can realize that at 30 seconds jet blowers reverse fast.
Summary of the invention
In order to solve the problem of above-mentioned existence, the invention provides a kind of diplopore one way traffic highway tunnel side pressure ventilation smoke exhaust method, make highway tunnel adopt good draft type, in case the condition of a fire occurs, can carry out fire rescue in time, effectively.
The present invention adopts following technical scheme to realize:
Described diplopore one way traffic highway tunnel side pressure ventilation smoke exhaust method, the blower fan of ventilation smoke exhaust is the jetting type longitudinal ventilation blower fan that can reverse fast in 30 seconds, between two tunnels, evenly be provided with several transverse passage-ways, on transverse passage-way, be provided with the air door of avoiding two tunnel string wind, air door is automatic, manual bidirectional is opened, and have and open the fire-fighting mark, the jetting type longitudinal ventilation blower fan equilibrium that can reverse fast between two tunnels of this diplopore one way traffic is arranged in four holes in tunnel, blower fan is installed and should be equated in four hole quantity, when Fan Selection quantitatively not enough 4 times when concerning, the blower fan diameter can be reduced, gather into 4 times, reach balanced.
Described diplopore one way traffic highway tunnel side pressure ventilation smoke exhaust facility method to set up, it under normal operation situation, opens blower ventilation when allowable concentration exceeds standard in the hole in diplopore one way traffic highway tunnel, the pollution concentration in the hole is controlled in the design standard; Obstruction a situation arises down, vehicle increases in the hole in, the contaminant capacity increase, when its ventilation requirement amount was big, the platform number of opening blower fan increased, and CO is controlled in the 200ppm, also can be with the blower fan counter-rotating of not blocking tunnel outlet, the lateral pressure not air of blocking tunnel is pressed into blocking tunnel; In the tunnel under the breaking out of fire situation, wind speed in the hole is controlled at about 2-3m/s, simultaneously, blocking tunnel port of export blower fan does not drop into counter-rotating immediately, blower fan facing movement with this tunnel entrance end, improve blast in the hole, the transverse passage-way air door is opened (need not to judge the position of fire in the tunnel) entirely, the air pressure that increases has been pressed into the fire tunnel with air by transverse passage-way, personnel's vehicle can enter no fire tunnel along transverse passage-way down with the wind, escape the inferno, the fire fighter has entered the fire tunnel along transverse passage-way with the wind, implements rescue work simultaneously at fire the place ahead, rear.
Owing to adopted technique scheme, the present invention to have following good effect:
1, diplopore one way traffic highway tunnel smoke evacuation fire-fighting effect:
1) reduced time and program that the tunnel is rescued, need not to judge earlier the position in tunnel, fire place, specified and open the position air door, happy mistake is rescued effective opportunity, and the rescue way is simple and reliable;
2) increased rescue path and orientation, the fire fighter can directly enter the fire proparea from transverse passage-way;
3) shortened and flee from distance, personnel, vehicle enter non-fire tunnel along transverse passage-way down with the wind, and be out of danger;
4) possibility that burnt out of jet blower reduces, and the jet blower of uplink and downlink tunnel exit only occurs in the port of export at fire just may stand high temperature, and fire occurs in other position just can not stand high temperature.
2, diplopore one way traffic highway tunnel ventilation mode and energy-saving effect:
1) use during congestion situations: can be during except fire with the side pressure aeration technology, when congestion situations taking place, also available this technology increases the interior ventilation of blocking tunnel in the tunnel in; When a tunnel took place to block, another tunnel not blocking tunnel entrance point blower fan was opened, the blower fan counter-rotating of outlet, and the lateral pressure not air of blocking tunnel is pressed into blocking tunnel; Other improper operating modes (going slowly) can be used the side pressure aeration technology equally;
When 2) designing the tunnel ventilation amount, the improper operating mode of blocking operating mode or going slowly, air quantity is controlled in the design that will not become single hole; Tunnel Design control ventilation will become two hole ventilation sums, the minimizing of Tunnel Design ventilation, and power of fan can be the cube relation and descend, and can reach the purpose of energy saving, obtains bigger economic benefit;
3) the twin tunnel side pressure CONCENTRATION DISTRIBUTION of ventilating: the vertical formula of the jetting type distribution triangular in shape of ventilating, and the side pressure ventilation contains the element of semi-transverse ventilation mode, concentration rises to the outlet indentation from tunnel entrance, same air quantity, and the concentration ratio triangle of tunnel exit end distributes low.
Description of drawings
Fig. 1 is the balanced arrangement diagram of the blower fan of diplopore one way traffic highway tunnel side pressure ventilation smoke exhaust method.
Among the figure: 1-blower fan, 2-have the fire tunnel, the 3-transverse passage-way, and 4-fire origination point, 5-does not have the fire tunnel.
The specific embodiment
The diverse location of four breaking out of fires (among the figure supposition) as shown in fig. 1, diplopore one way traffic highway tunnel side pressure ventilation smoke exhaust method be between two tunnels, evenly be provided with 1., 2., 3. number transverse passage-way 3, if the tunnel is longer, can establish several transverse passage-ways 3 more; Be provided with air door on transverse passage-way 3, in order to avoid two tunnel string wind, air door is automatic, manual bidirectional unlatching, and the fire-fighting of unlatching mark is arranged.Suppose that fire occurs in A, B, four diverse locations of C, D, all can make lateral pressure be pressed into the fire tunnel full trrottle.The purpose of the disaster relief and energy-conservation operation rapidly when reaching breaking out of fire for the mode of the ventilation smoke exhaust that makes diplopore one way traffic highway tunnel, blower fan 1 equilibrium is arranged in four holes in tunnel, blower fan is installed and will be considered that four holes should equate in quantity, when Fan Selection quantitatively not enough 4 times when concerning, the blower fan diameter can be reduced, gather into 4 times, reach balanced.
Under normal traffic operation situation, because the speed of one way traffic can produce bigger Piston Wind during for 60km/h, CO in the hole can be dropped to 100ppm, when concentration is above standard, just must open blower fan 1 and ventilate, the pollution concentration in the hole is controlled in the design standard.Obstruction a situation arises down, running speed is reduced to 10km/h, vehicle increases in the hole in, contaminant capacity increases, and when its ventilation requirement amount is big, opens the platform number increase of blower fan 1, and CO is controlled in the 200ppm; This moment also can be with blower fan 1 counter-rotating of not blocking tunnel outlet, and the lateral pressure not air of blocking tunnel is pressed into blocking tunnel; Can use the side pressure aeration technology equally during other improper operating modes (as going slowly).In the tunnel under the breaking out of fire situation, the vehicle crew of fire origination point 4 fronts can escape with the wind, the personnel of fire origination point 4 back can keep watch and move back, this moment is in order to prevent the smog diffusion, wind speed in the hole is controlled at about 2-3m/s, simultaneously, blocking tunnel port of export blower fan does not drop into counter-rotating immediately, blower fan facing movement with this tunnel entrance end, improve blast in the hole, transverse passage-way 3 air doors are opened (need not to judge the position of fire in the tunnel) entirely, and the air pressure that increases has been pressed into fire tunnel 2 with air by transverse passage-way 3, stop smog to spread through transverse passage-way 3 and come, personnel's vehicle can enter no fire tunnel 5 along transverse passage-way 3 down with the wind, escape the inferno, out of danger, enter the safety area.The fire fighter has entered fire tunnel 2 along transverse passage-way 3 with the wind, carries out rescue work simultaneously at fire the place ahead, rear.
Claims (2)
1. diplopore one way traffic highway tunnel side pressure ventilation smoke exhaust method, the blower fan of ventilation smoke exhaust is the jetting type longitudinal ventilation blower fan that can reverse fast in 30 seconds, between two tunnels, evenly be provided with several transverse passage-ways, on transverse passage-way, be provided with the air door of avoiding two tunnel string wind, air door is automatic, manual bidirectional is opened, and have and open the fire-fighting mark, it is characterized in that: jetting type longitudinal ventilation blower fan (1) equilibrium that can reverse fast between two tunnels of this diplopore one way traffic is arranged in four holes in tunnel, blower fan (1) is installed and should be equated in four hole quantity, when blower fan (1) type selecting quantitatively not enough 4 times when concerning, blower fan (1) diameter can be reduced, gather into 4 times, reach balanced.
2. diplopore one way traffic highway tunnel side pressure ventilation smoke exhaust method as claimed in claim 1, it is characterized in that: in diplopore one way traffic highway tunnel under the normal operation situation, open blower fan (1) when allowable concentration exceeds standard in the hole and ventilate, the pollution concentration in the hole is controlled in the design standard; Obstruction a situation arises down, vehicle increases in the hole in, the contaminant capacity increase, when its ventilation requirement amount was big, the platform number of opening blower fan (1) increased, and CO is controlled in the 200ppm, also can be with blower fan (1) counter-rotating of not blocking tunnel outlet, the lateral pressure not air of blocking tunnel is pressed into blocking tunnel; In the tunnel under the breaking out of fire situation, wind speed in the hole is controlled at about 2-3m/s, simultaneously, blocking tunnel port of export blower fan (1) does not drop into counter-rotating immediately, blower fan (1) facing movement with this tunnel entrance end, improve blast in the hole, transverse passage-way (3) air door is opened entirely, the air pressure that increases has been pressed into fire tunnel (2) with air by transverse passage-way (3), personnel's vehicle can enter no fire tunnel (5) along transverse passage-way (3) down with the wind, escape the inferno, the fire fighter has entered fire tunnel (2) along transverse passage-way (3) with the wind, in fire the place ahead, rescue work is implemented at the rear simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410010279 CN1580493B (en) | 2004-05-20 | 2004-05-20 | Two-hole one-way side-pressure ventilation smoke-discharging method for road tunnel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410010279 CN1580493B (en) | 2004-05-20 | 2004-05-20 | Two-hole one-way side-pressure ventilation smoke-discharging method for road tunnel |
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| CN1580493A CN1580493A (en) | 2005-02-16 |
| CN1580493B true CN1580493B (en) | 2010-06-09 |
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| CN 200410010279 Expired - Fee Related CN1580493B (en) | 2004-05-20 | 2004-05-20 | Two-hole one-way side-pressure ventilation smoke-discharging method for road tunnel |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509389B (en) * | 2008-02-13 | 2011-12-21 | 西南交通大学 | Highway tunnel flat guide pressing ventilation horizontal passage control method |
| NL1035434C2 (en) * | 2008-05-19 | 2009-11-20 | Holland Conditioning Parkeersy | Ventilation system for road tunnel, has air supply channel between two tunnel tubes, and ventilation passages provided at regular intervals on walls of tunnel tubes, where system generates airflow along length of tunnel |
| CN101550836B (en) * | 2009-05-08 | 2013-05-01 | 上海市隧道工程轨道交通设计研究院 | Natural dispersion air-discharge method for road tunnel |
| WO2011042980A1 (en) * | 2009-10-05 | 2011-04-14 | 株式会社創発システム研究所 | Tunnel ventilation control system of two-way tunnel using jet fan |
| CN104879157B (en) * | 2015-06-04 | 2017-03-15 | 四川省交通运输厅公路规划勘察设计研究院 | Highway tunnel construction aeration structure and its ventilation amount control method |
| CN111894646B (en) * | 2020-06-29 | 2022-08-02 | 中铁第一勘察设计院集团有限公司 | Ventilating system and ventilating method for natural ventilation of ultra-long electrified railway |
| CN112282822A (en) * | 2020-11-06 | 2021-01-29 | 天津大学 | Subway station hall smoke prevention and discharge method based on real-time monitoring |
| CN113047890B (en) * | 2021-01-13 | 2023-07-04 | 广州万二二麦工程技术有限公司 | Side suction side discharge low wind speed large wind volume tunnel fresh air system |
| CN116229659B (en) * | 2023-05-08 | 2023-09-12 | 四川省交通勘察设计研究院有限公司 | Tunnel traffic control system and traffic control method suitable for low-grade highway |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB909284A (en) * | 1959-11-27 | 1962-10-31 | Kloeckner Werke Ag | Improvements in or relating to the ventilation of tunnels |
| GB1200589A (en) * | 1968-07-26 | 1970-07-29 | Sina In Nat Autostradali | A method for pressure ventilation of a motorway tunnel and system for carrying out such a method |
| CN1318684A (en) * | 2000-04-17 | 2001-10-24 | 李华珏 | Forced homogenized air channel for tunnel |
| CN2531109Y (en) * | 2001-04-11 | 2003-01-15 | 陆懋成 | Ventilating structure for road tunnel |
-
2004
- 2004-05-20 CN CN 200410010279 patent/CN1580493B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB909284A (en) * | 1959-11-27 | 1962-10-31 | Kloeckner Werke Ag | Improvements in or relating to the ventilation of tunnels |
| GB1200589A (en) * | 1968-07-26 | 1970-07-29 | Sina In Nat Autostradali | A method for pressure ventilation of a motorway tunnel and system for carrying out such a method |
| CN1318684A (en) * | 2000-04-17 | 2001-10-24 | 李华珏 | Forced homogenized air channel for tunnel |
| CN2531109Y (en) * | 2001-04-11 | 2003-01-15 | 陆懋成 | Ventilating structure for road tunnel |
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| CN1580493A (en) | 2005-02-16 |
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Granted publication date: 20100609 Termination date: 20110520 |