CN106948854A - Tunnel ventilation smoke evacuation system and tunnel ventilation smoke exhaust method - Google Patents
Tunnel ventilation smoke evacuation system and tunnel ventilation smoke exhaust method Download PDFInfo
- Publication number
- CN106948854A CN106948854A CN201710235998.7A CN201710235998A CN106948854A CN 106948854 A CN106948854 A CN 106948854A CN 201710235998 A CN201710235998 A CN 201710235998A CN 106948854 A CN106948854 A CN 106948854A
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- China
- Prior art keywords
- vertical shaft
- tunnel
- ventilation smoke
- tunnel ventilation
- jet blower
- 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
- 239000000779 smoke Substances 0.000 title claims abstract description 64
- 238000009423 ventilation Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005070 sampling Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000003546 flue gas Substances 0.000 description 38
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 37
- 230000000694 effects Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000007664 blowing Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/18—Gravity flow ventilation
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a kind of tunnel ventilation smoke evacuation system and tunnel ventilation smoke exhaust method, wherein the system includes forming at least one vertical shaft in tunnel top;More than two jet blowers, are separately positioned on the tunnel top of the vertical shaft both sides;Sensor, is arranged on tunnel inner wall, the fire location for sensing tunnel internal;And controller, the fire location signal that the sensor is sent is received, and the jet blower of the vertical shaft both sides closest from burning things which may cause a fire disaster is dried in opposite directions.When fire occurs in tunnel, it by the tunnel ventilation smoke evacuation system and tunnel ventilation smoke exhaust method of the present invention, can avoid suctioning through the generation of phenomenon, improve the ventilation smoke exhaust efficiency of vertical shaft.
Description
Technical field
The present invention relates to tunneling technique, and in particular to leads to suitable for the tunnel ventilation smoke evacuation system and tunnel of fire in tunnel
Wind smoke exhaust method.
Background technology
In recent years, Urbanization in China is constantly promoted, urban land resource shortage, thus many big cities are energetically
Build subway tunnel and roads and tunnels.In Freeway of Mountain Range, tunnel is also widely adopted.These tunnels are brought easily
Meanwhile, also bring new challenge to tunnel ventilation smoke evacuation.Due to the particularity of this long and narrow space structure in tunnel, once occur
Fire, if ventilation smoke exhaust is not smooth, will bring very serious consequence, thus research tunnel ventilation smoke evacuation has important reality meaning
Justice.
Vertical shaft natural ventilation smoke mode is a kind of relatively conventional ventilation smoke exhaust mode in tunnel, and it refers in tunnel
Top sets the air shaft communicated with ambient atmosphere at a certain distance so that the dirty gas and outside air of tunnel internal
Swap, to reach the purpose that temperature, humidity, flow velocity of tunnel space etc. are adjusted., can when occurring fire in tunnel
Form stack effect in the shaft using flue gas and carry out natural draught system.Vertical shaft natural draught system mode is in the process of running without consumption
Electric energy, is used for a long time after disposable setting, therefore saves tunnel construction and operation cost, with obvious economy, in wagon flow
Measure and be widely used in less short tunnel.
However, during using vertical shaft natural draught system, because the stack effect that flue gas is formed in vertical shaft is stronger, flue gas in tunnel
Longitudinal velocity is often below flue gas vertical velocity in vertical shaft, the flue gas immediately below vertical shaft is largely discharged, and the cigarette in other regions
Gas also slowly to vertical shaft flowing underneath, is thus being likely to result in bottom cold air and is being directly sucked in vertical shaft, that is, suctioning through phenomenon,
So as to directly be disturbed to being constituted at flue gas and Air Interface, cause more air to be inhaled into flue gas layer, cause smoke exhaust efficiency to drop
It is low.
The content of the invention
[goal of the invention]
The problem of present invention is in order to solve as described above and propose, its object is to provide a kind of following tunnel lead to
Wind smoke evacuation system and tunnel ventilation smoke exhaust method:When fire occurs in tunnel, it is to avoid suction through the generation of phenomenon, vertical shaft is improved
Ventilation smoke exhaust efficiency.
[technical scheme]
A kind of tunnel ventilation smoke evacuation system according to embodiments of the present invention, including formed and erected at least one of tunnel top
Well, wherein the tunnel ventilation smoke evacuation system can also include:More than two jet blowers, are separately positioned on the vertical shaft two
The tunnel top of side;Sensor, is arranged on tunnel inner wall, the fire location for sensing tunnel internal;And controller, receive
The fire location signal that the sensor is sent, and the jet blower of the vertical shaft both sides closest from burning things which may cause a fire disaster is dried in opposite directions.
As embodiment related to the present invention, the distance between the adjacent vertical shaft can be 100~300m.
As embodiment related to the present invention, when the distance between adjacent described vertical shaft is 100~150m, in phase
1 jet blower is set between the adjacent vertical shaft;When the distance between adjacent described vertical shaft is 150~300m, in phase
2~5 jet blowers can be set between the adjacent vertical shaft.
It is adjacent when having the vertical shaft between the adjacent jet blower as embodiment related to the present invention
The spacing of the jet blower can be 100m;It is adjacent when not having the vertical shaft between the adjacent jet blower
The spacing of the jet blower can be 50m.
As embodiment related to the present invention, the air outlet velocity of the jet blower can be 20~40m/s.
As embodiment related to the present invention, the area of section of the vertical shaft can be 25~50m2。
As embodiment related to the present invention, the sensor can be visited for ionic smoke sensor formula detector, photoelectric smoke
At least one surveyed in device, infrared beam smoke detector and air sampling smoke detector.
A kind of tunnel ventilation smoke exhaust method according to embodiments of the present invention, it is adaptable to foregoing tunnel ventilation smoke evacuation system
System, wherein the tunnel ventilation smoke exhaust method comprises the following steps:Sense the fire location of tunnel internal;And according to sensing
Fire location, the jet blower of the vertical shaft both sides closest from burning things which may cause a fire disaster dries in opposite directions.
[beneficial effect]
Following advantage is included but is not limited to according to the tunnel ventilation smoke evacuation system and tunnel ventilation smoke exhaust method of the present invention:
(1) in terms of practicality and security, cooperated, can significantly carried by natural draught system vertical shaft and jet blower
The natural draught system effect of high vertical shaft, contributes to evacuating personnel and rescue when occurring fire, tunnel is favorably improved during routine use
Air quality in road;
(2) in terms of constructing operation, it is easy to constructing operation;
(3) in terms of financial cost and applicability, set convenient, economic input is little, strong applicability.
Brief description of the drawings
Fig. 1 cooperates with opposite blowing signal with burning things which may cause a fire disaster both sides jet blower for vertical shaft under the fire condition of the embodiment of the present invention
Figure;
Fig. 2 cooperates with the setting example schematic of smoke evacuation for vertical shaft under the fire condition of the embodiment of the present invention with jet blower;
Fig. 3 is that flow of flue gas schematic diagram in vertical shaft and tunnel is not provided with during jet blower under fire condition;
Fig. 4 be fire condition under vertical shaft side (left side) set jet blower when vertical shaft and tunnel in flow of flue gas illustrate
Figure;
Fig. 5 be fire condition under vertical shaft both sides set jet blower when vertical shaft and tunnel in flow of flue gas schematic diagram.
【Description of reference numerals】
1:Tunnel 2:Jet blower
3:Vertical shaft 4:Flue gas stream
5:The air stream 6 that jet blower is produced:Burning things which may cause a fire disaster
Embodiment
It should notice, the technical term used in the present invention is merely to illustrate specific embodiment, it is not intended to limit
The present invention.Also, unless especially defined in the present invention with other implications, then the technical term used in the present invention should be solved
The personnel that are interpreted as possessing ABC in the technical field belonging to the present invention it can be generally understood that implication.
In addition, the odd number type statement used in the present invention includes complex number type statement, unless explicitly indicated that in document train of thought
Different implications.In the present invention, the term such as " composition " or " comprising " can not be construed to want including described all compositions
Plain or all steps, in a part of inscape or a part of step therein can also be not included in, or can also include extra
Inscape or step.
Here, it should be noted that in the case of longitudinal natural wind speed is less in tunnel, during using vertical shaft natural draught system,
Because the stack effect that flue gas is formed in vertical shaft is stronger, it is vertical that the flue gas longitudinal velocity in tunnel is often below flue gas in vertical shaft
Speed, easily causes flue gas and suctions through the generation of phenomenon, so as to cause smoke exhaust efficiency relatively low.For this problem, the present invention is out of tunnel
Flue gas longitudinal velocity be less than in vertical shaft that flue gas vertical velocity is as point of penetration, proposition sets up jet blower in vertical shaft both sides, makes
Jet blower blows to flue gas below neighbouring vertical shaft, the flue gas longitudinal flow speed in tunnel is improved, so as to avoid
Flue gas suctions through phenomenon, improves smoke exhaust efficiency.
Fig. 1 cooperates with opposite blowing to show for vertical shaft 3 under the fire condition of the embodiment of the present invention with the both sides jet blower 2 of burning things which may cause a fire disaster 6
It is intended to;Fig. 2 cooperates with the setting example schematic of smoke evacuation for vertical shaft 3 under the fire condition of the embodiment of the present invention with jet blower 2.
As illustrated in fig. 1 and 2, tunnel ventilation smoke evacuation system of the invention (is not schemed including vertical shaft 3, jet blower 2, sensor
Show) and controller (not shown) etc..
The vertical shaft 3, formation can form one or two or more at the top in tunnel 1, and according to the length in tunnel 1
It is individual.The jet blower 2, is configured at the top of tunnel 1 of each both sides of vertical shaft 3, for being blown towards the direction of vertical shaft 3
Wind.The sensor, is arranged on the inwall in tunnel 1, for sensing the fire location inside tunnel 1.Here, the sensor can
To be ionic smoke sensor formula detector, optical detector of fire smoke, infrared beam smoke detector and air sampling smoke detector
In at least one.The controller, receives the fire location signal that sensor is sent, and make the vertical shaft closest from burning things which may cause a fire disaster
The jet blower 2 of 3 both sides is dried in opposite directions.
The jet blower 2 of the embodiment of the present invention is arranged between vertical shaft 3 (reference picture 2).If between adjacent vertical shaft 3 away from
From in 100~150m, then a jet blower 2 is set between adjacent vertical shaft 3, now (that is, when between jet blower 2
When having vertical shaft 3) spacing between adjacent jets blower fan 2 is preferentially set as 100m.If the distance between adjacent vertical shaft 3 is larger
(150m<Vertical shaft spacing<300m), then 2~5 jet blowers 2 can be set between adjacent vertical shaft 3, now (work as jet blower
When between 2 without vertical shaft 3) spacing between adjacent jets blower fan 2 is preferentially set as 50m.If the distance between adjacent vertical shaft 3 mistake
(300m greatly<Vertical shaft spacing), then need that more jet blowers are installed, but so do and flue gas layer may be caused compared with large disturbances,
It is unfavorable for quick discharge and the evacuating personnel of flue gas.Therefore, embodiments of the invention be applied to the adjacent spacing of vertical shaft 3 100 to
Tunnel 1 between 300m.Because of the auxiliary air-supply of jet blower 2, a large amount of flue gases can be delivered to the lower section of vertical shaft 3, thus needed
The sectional dimension of vertical shaft 3 is set slightly larger, embodiments of the invention are preferentially using area of section in 25m2To 50m2Between
Vertical shaft.In addition, in the embodiment of the present invention as described above, matchingly the air outlet velocity of jet blower 2 preferentially can be set
It is set to 20~40m/s.
When occurring fire in the tunnel 1, flue gas can at the burning things which may cause a fire disaster 6 spread rapidly.It is arranged on the sensing of the inwall of tunnel 1
Device (not shown), such as ionic smoke sensor formula detector, optical detector of fire smoke, infrared beam smoke detector and air sampling
At least one in smoke detector can be immediately detected fire, and be accurately positioned the position of burning things which may cause a fire disaster 6, and by fire location
Signal is sent to controller (not shown).In order to limit spreading and as early as possible discharging flue gas by vertical shaft 3 for flue gas, controller according to
Fire location signal from sensor selectes jet blower 2 and determines the blowing direction of the jet blower 2, that is, controller makes
Vertical shaft 3 and the jet blower 2 of the both sides of burning things which may cause a fire disaster 6 are dried in opposite directions, such as in fig. 2, if burning things which may cause a fire disaster 6 is penetrated positioned at left side vertical shaft 3 with centre
Between flow fan 2, then controller makes middle jet blower 2 dry to the left and left side jet blower 2 is dried to the right, if fiery
Source 6 is located between right side vertical shaft 3 and middle jet blower 2, then controller makes middle jet blower 2 dry to the right and makes the right side
Side jet blower 2 is dried to the left.Thus can be by flue gas control between two jet blowers 2, and pass through the vertical shaft 3 between them
Discharge.
Fig. 3 is that flow of flue gas schematic diagram in vertical shaft 3 and tunnel 1 is not provided with during jet blower under fire condition;Fig. 4 is fire
In the case of calamity the side of vertical shaft 3 (left side) set jet blower 2 when vertical shaft 3 and tunnel 1 in flow of flue gas schematic diagram;Fig. 5 is fire
In the case of the both sides of vertical shaft 3 set jet blower 2 when vertical shaft 3 and tunnel 1 in flow of flue gas schematic diagram.
As shown in figure 3, when being not provided with jet blower in tunnel 1, flue gas spreads in the top in whole tunnel 1, and pole
Phenomenon easily is suctioned through, is slowly flowed apart from the flue gas of vertical shaft 3 farther out, the lower section of vertical shaft 3 can not be flow in the short time, so as to drop
The low efficiency of vertical shaft natural draught system.As shown in figure 4, when being provided with jet blower in the side of vertical shaft 3 (left side), because left side is penetrated
The effect of flow fan, the flue gas in the left side of vertical shaft 3 flow to rapidly the lower section of vertical shaft 3, but the right side flue gas of burning things which may cause a fire disaster 6 is disturbed, and due to
The Action of Wind pressure that left side jet blower is produced, the flue gas on the right side of vertical shaft 3 is difficult to be discharged by vertical shaft 3 outside tunnel 1, and flue gas will continue
Spread in tunnel 1, therefore unilateral jet blower cooperates with smoke discharging effect undesirable with vertical shaft.With the smoke discharging effect in Fig. 3 and Fig. 4
Difference, as shown in figure 5, when being respectively provided with jet blower in the both sides of vertical shaft 3, the flue gas produced by burning things which may cause a fire disaster 6 is blown in opposite directions by two
The jet blower of wind is limited near vertical shaft 3, both prevents fire and smoke spread, is conducive to vertical shaft 3 rapidly to discharge flue gas again, so that
It can realize and avoid suctioning through phenomenon, improve the purpose of smoke exhaust efficiency, it was confirmed that bilateral jet blower cooperates with having for smoke evacuation with vertical shaft
Effect property.
Claims (8)
1. a kind of tunnel ventilation smoke evacuation system, including form at least one vertical shaft in tunnel top, it is characterised in that the tunnel
Road ventilation smoke extraction system also includes:
More than two jet blowers, are separately positioned on the tunnel top of the vertical shaft both sides;
Sensor, is arranged on tunnel inner wall, the fire location for sensing tunnel internal;And
Controller, receives the fire location signal that the sensor is sent, and make penetrating for the vertical shaft both sides closest from burning things which may cause a fire disaster
Flow fan is dried in opposite directions.
2. tunnel ventilation smoke evacuation system as claimed in claim 1, it is characterised in that:The distance between adjacent described vertical shaft is
100~300m.
3. tunnel ventilation smoke evacuation system as claimed in claim 2, it is characterised in that:
When the distance between adjacent described vertical shaft is 100~150m, 1 jet wind is set between the adjacent vertical shaft
Machine;
When the distance between adjacent described vertical shaft is 150~300m, setting 2~5 is penetrated between the adjacent vertical shaft
Flow fan.
4. tunnel ventilation smoke evacuation system as claimed in claim 3, it is characterised in that:
When having the vertical shaft between the adjacent jet blower, the spacing of the adjacent jet blower is 100m;
When not having the vertical shaft between the adjacent jet blower, the spacing of the adjacent jet blower is 50m.
5. the tunnel ventilation smoke evacuation system as described in any one of Claims 1-4, it is characterised in that:The jet blower
Air outlet velocity be 20~40m/s.
6. the tunnel ventilation smoke evacuation system as described in any one of Claims 1-4, it is characterised in that:Section of the vertical shaft
Face area is 25~50m2。
7. tunnel ventilation smoke evacuation system as claimed in claim 1, it is characterised in that the sensor detects for ionic smoke sensor formula
At least one in device, optical detector of fire smoke, infrared beam smoke detector and air sampling smoke detector.
8. a kind of tunnel ventilation smoke exhaust method, it is adaptable to the tunnel ventilation smoke evacuation system as described in any one of claim 1 to 7
System, it is characterised in that the tunnel ventilation smoke exhaust method comprises the following steps:
Sense the fire location of tunnel internal;And
According to the fire location sensed, the jet blower of the vertical shaft both sides closest from burning things which may cause a fire disaster is dried in opposite directions.
Priority Applications (1)
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CN201710235998.7A CN106948854A (en) | 2017-04-12 | 2017-04-12 | Tunnel ventilation smoke evacuation system and tunnel ventilation smoke exhaust method |
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CN201710235998.7A CN106948854A (en) | 2017-04-12 | 2017-04-12 | Tunnel ventilation smoke evacuation system and tunnel ventilation smoke exhaust method |
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Family
ID=59474558
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CN201710235998.7A Pending CN106948854A (en) | 2017-04-12 | 2017-04-12 | Tunnel ventilation smoke evacuation system and tunnel ventilation smoke exhaust method |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107605526A (en) * | 2017-10-27 | 2018-01-19 | 北京交科公路勘察设计研究院有限公司 | Vcehicular tunnel is segmented emphasis smoke evacuation system and smoke exhaust method |
CN108533305A (en) * | 2018-02-14 | 2018-09-14 | 中国安全生产科学研究院 | The ventilation smoke exhaust method of train fire in a kind of Subway Tunnel |
CN108979697A (en) * | 2018-08-09 | 2018-12-11 | 湖南科技大学 | The air-supply vertical shaft fresh-air volume reduction coefficient calculation method of tunnel open circulation ventilation |
CN109252885A (en) * | 2018-10-25 | 2019-01-22 | 中国安全生产科学研究院 | A kind of subway underground station an island platform Fire Ventilation smoke evacuation system and method |
CN110107333A (en) * | 2019-05-29 | 2019-08-09 | 武汉中交交通工程有限责任公司 | A kind of tunnel ventilation experimental provision with discharge flue |
CN110644728A (en) * | 2019-09-29 | 2020-01-03 | 合肥工业大学 | Movable smoke control system in underground space |
CN111462606A (en) * | 2020-04-21 | 2020-07-28 | 合肥工业大学 | Traffic tunnel group smoke cross flow research and emergency rescue system |
CN115929382A (en) * | 2022-12-08 | 2023-04-07 | 重庆大学 | PID control-based tunnel fire combined smoke exhaust method |
EP4234939A3 (en) * | 2022-02-25 | 2023-11-22 | Korea Expressway Corp. | Device for supplying power to jet fan disposed in tunnel and jet fan system using the same |
CN117328922A (en) * | 2023-11-17 | 2024-01-02 | 中交第二公路勘察设计研究院有限公司 | Tunnel ventilation and smoke exhaust system and method for providing airflow with smoke guide included angle |
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Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107605526A (en) * | 2017-10-27 | 2018-01-19 | 北京交科公路勘察设计研究院有限公司 | Vcehicular tunnel is segmented emphasis smoke evacuation system and smoke exhaust method |
CN107605526B (en) * | 2017-10-27 | 2023-08-22 | 北京交科公路勘察设计研究院有限公司 | Highway tunnel segmentation key smoke discharging system and smoke discharging method |
CN108533305A (en) * | 2018-02-14 | 2018-09-14 | 中国安全生产科学研究院 | The ventilation smoke exhaust method of train fire in a kind of Subway Tunnel |
CN108533305B (en) * | 2018-02-14 | 2019-03-19 | 中国安全生产科学研究院 | The ventilation smoke exhaust method of train fire in a kind of Subway Tunnel |
CN108979697B (en) * | 2018-08-09 | 2019-10-25 | 湖南科技大学 | The air-supply vertical shaft fresh-air volume reduction coefficient calculation method of tunnel open circulation ventilation |
CN108979697A (en) * | 2018-08-09 | 2018-12-11 | 湖南科技大学 | The air-supply vertical shaft fresh-air volume reduction coefficient calculation method of tunnel open circulation ventilation |
CN109252885A (en) * | 2018-10-25 | 2019-01-22 | 中国安全生产科学研究院 | A kind of subway underground station an island platform Fire Ventilation smoke evacuation system and method |
CN110107333A (en) * | 2019-05-29 | 2019-08-09 | 武汉中交交通工程有限责任公司 | A kind of tunnel ventilation experimental provision with discharge flue |
CN110644728A (en) * | 2019-09-29 | 2020-01-03 | 合肥工业大学 | Movable smoke control system in underground space |
CN110644728B (en) * | 2019-09-29 | 2020-10-20 | 合肥工业大学 | Movable smoke control system in underground space |
CN111462606A (en) * | 2020-04-21 | 2020-07-28 | 合肥工业大学 | Traffic tunnel group smoke cross flow research and emergency rescue system |
EP4234939A3 (en) * | 2022-02-25 | 2023-11-22 | Korea Expressway Corp. | Device for supplying power to jet fan disposed in tunnel and jet fan system using the same |
CN115929382A (en) * | 2022-12-08 | 2023-04-07 | 重庆大学 | PID control-based tunnel fire combined smoke exhaust method |
CN117328922A (en) * | 2023-11-17 | 2024-01-02 | 中交第二公路勘察设计研究院有限公司 | Tunnel ventilation and smoke exhaust system and method for providing airflow with smoke guide included angle |
CN117328922B (en) * | 2023-11-17 | 2024-04-02 | 中交第二公路勘察设计研究院有限公司 | Tunnel ventilation and smoke exhaust system and method for providing airflow with smoke guide included angle |
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Application publication date: 20170714 |