CN208534524U - A kind of high-efficient ventilation system for tunnel - Google Patents
A kind of high-efficient ventilation system for tunnel Download PDFInfo
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- CN208534524U CN208534524U CN201821248582.5U CN201821248582U CN208534524U CN 208534524 U CN208534524 U CN 208534524U CN 201821248582 U CN201821248582 U CN 201821248582U CN 208534524 U CN208534524 U CN 208534524U
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- tunnel
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Abstract
The utility model discloses a kind of high-efficient ventilation systems for tunnel, including the supply air duct of tunnel two sides is arranged in and the wind output channel of tunnel upper is arranged in；Lower sidewall is provided with multiple air outlets in the tunnel body, and the air outlet is connected to supply air duct；The upper end the tunnel Ti Neibi is provided with multiple exhaust outlets, and the exhaust outlet is connected to wind output channel；The distance between adjacent exhaust outlet of the distance between the adjacent air outlet extends setting incremented by successively to both sides along tunnel longitudinal midline；Supply air duct both ends road junction is provided with breeze fan, and wind output channel both ends road junction is provided with exhaust fan.The utility model uses the distance between the adjacent exhaust outlet of the distance between the adjacent air outlet setting method incremented by successively along tunnel longitudinal midline, improve the air-supply air draft frequency of the serious tunnel depths of air pollution, the ventilation effect for improving tunnel depths, reaches the high-efficient ventilation of tunnel entirety.
Description
Technical field
The utility model relates to a kind of tunnel ventilation technical fields, and in particular to a kind of high-efficient ventilation system for tunnel
System.
Background technique
With the continuous development of national economy, investment of the China in terms of transport development is increasingly increased, vcehicular tunnel construction
Technology is even more to make rapid progress, currently, about 5000 kilometers of the vcehicular tunnel total length in China, occupies first place in the world.
In the process of construction in entire tunnel, there can be good ventilation effect very crucial, the installation and arrangement of blower
Whether there is reasonability, has important influence to the excellent of tunnel ventilation effect.In recent decades, China is logical in vcehicular tunnel
It is constantly explored in terms of wind, has accumulated many successful experiences.Meanwhile having to be solved there is also many problems, especially the country is permitted
How long the construction and planning of Highway Tunnel Ventilation System are reached.Good ventilation condition makes the necessary item of tunnel safety operation in tunnel
Part, the purpose of ventilation are the noxious pollutant concentration in tunnel in air to be reduced to specification safe level hereinafter, to guarantee
The comfortableness and security of driving.
Tunnel ventilation is broadly divided into gravity-flow ventilation and force ventilation.The tunnel ventilation early stage of development, main draft type are certainly
So ventilation.But as driving increases, the rapid development grown up to arriving, the mode of gravity-flow ventilation is no longer satisfied hygienic in tunnel
Standard needs, it is necessary to the tail gas generated by automobile is discharged in a manner of force ventilation.The tunnel of one-way trip can be very good
Using moving traffic wind, tunnel ventilation is carried out by the way of longitudinal force ventilation.Bidirectional tunnel is difficult due to passing vehicle idea
To form the moving traffic wind of one-way flow in tunnel, and the vehicle travelled in opposite directions can form a large amount of air vortex in tunnel
Stream, is unfavorable for the discharge of pollutant in tunnel.Position air meanwhile with the increase of length of tunnel, among tunnel
Pollutant concentration is bigger, bigger to the demand of tunnel ventilation, once traffic jam or fire occurs, due to air pollution
And it is bigger to cause casualties.
Utility model content
The utility model also proposes the demand of tunnel ventilation for being gradually increasing as tunnel gos deep into air pollution concentration
High problem provides a kind of high-efficient ventilation system for tunnel, the air according to caused by different as tunnel lengthwise position
Pollution level is different, using the distance between the distance between adjacent air outlet and adjacent exhaust outlet along tunnel longitudinal midline successively
Incremental setting method improves the air-supply air draft frequency of the serious tunnel depths of air pollution, improves the ventilation effect of tunnel depths
Fruit reaches the high-efficient ventilation of tunnel entirety.
The utility model is achieved through the following technical solutions: the high-efficient ventilation system for tunnel is suitable for two-way row
The tunnel of vehicle, the tunnel include the tunnel body passed through for wagon flow longitudinally extended.The ventilating system includes being arranged in tunnel
The supply air duct of road two sides and the wind output channel that tunnel upper is set；Lower sidewall is provided with multiple air-supplies in the tunnel body
Mouthful, the air outlet is connected to supply air duct；The upper end the tunnel Ti Neibi is provided with multiple exhaust outlets, the exhaust outlet and row
The connection of wind air duct；The distance between adjacent exhaust outlet of the distance between the adjacent air outlet is along tunnel longitudinal midline to both sides
Extend setting incremented by successively；Supply air duct both ends road junction is provided with breeze fan, the setting of wind output channel both ends road junction
There is exhaust fan.
At the tunnel both ends close to tunnel face, due to easily forming convection current with extraneous natural wind, air pollutants
Increase is often unobvious, therefore, there is no need to that ventilation device is arranged.But for close to tunnel middle position tunnel depths, due to
Completely cut off completely with extraneous natural wind and come, the tail gas of a large amount of vehicle discharges cannot dilute in tunnel, pollute the most serious.And
When tunnel blocks up, most of situation that blocks up occurs in tunnel depths, therefore, the closer tunnel face of the ventilation pressure of tunnel depths
It is much larger.
Air outlet and exhaust outlet are set by the way of successively successively decreasing along tunnel longitudinal midline to both sides extension, keep pollution tight
Tunnel depths air outlet, the exhaust outlet of weight are intensive compared with slight tunnel face is polluted, and are rapidly diluted the air of tunnel depths, and
Tunnel is discharged rapidly by exhaust outlet, improves drafting efficiency.Meanwhile two side lower parts, air draft inside tunnel body is arranged in air outlet
Mouth setting forms the air flow direction from tunnel lower part to tunnel top in tunnel, vehicle is driven to arrange in the tunnel top surface Ti Neice
Tail gas out is discharged above tunnel body.Meanwhile exhaust fan is arranged in wind output channel both ends, the sky muddy to the extraction of tunnel both ends
Gas forms negative pressure in wind output channel, promotes air muddy in tunnel to flow to wind output channel, it is made to be not easy to flow back.
Further, the ventilating system further includes the control device being arranged in outside tunnel and is arranged in the intracorporal ring in tunnel
Border monitoring device, the environment monitoring device include temperature sensor, smoke detectors, CO sensor, the control device point
Not with temperature sensor, smoke detectors, CO sensor, breeze fan and exhaust fan circuit connection.The control device can
It is remotely located, convenient for the long-range control and maintenance of ventilating system.It is remotely located especially for the tunnel that topography is dangerously steep or remote
Control device can build and maintenance cost, and the air inlet and air draft situation in tunnel are adjusted according to tunnel situation in time, reduced
The person of tunnel accident, property loss.
The air outlet and exhaust outlet are built-in with the electric closed valve door with control device circuit connection, described electronic close
Valve closing door remotely controls automatic opening by control device or closes.It, can be by remotely controlling air outlet when fire occurs for tunnel
With the electric closed valve door built in exhaust outlet, the air outlet and exhaust outlet that the tunnel construction sections of fire do not occur are closed, opens and fire occurs
A large amount of flue gases that fire generates rapidly are discharged tunnel, avoid flue gas in tunnel by the air outlet and exhaust outlet of the tunnel construction sections of calamity
It inside diffuses, causes bigger personnel, property loss.
Further, the supply air duct both ends are provided with wind direction detection device and wind detection device, the wind-force inspection
Survey device and wind direction detection device with control device circuit connection.Area biggish for wind-force, can use natural wind
Wind direction and wind-force are opened or closed the air supply motor of supply air duct road junction setting, are blown using natural wind, reduce ventilating system
Energy consumption improves efficiency.
Preferably, the supply air duct both ends are provided with as outwardly open horn mouth, and air is made easily to be inhaled into air-supply
In air duct, the flow velocity for entering the air of supply air duct is improved.
Further, the lower edge of the supply air duct is 1 ~ 2m at a distance from ground；The lower edge and tunnel of the air outlet
Internal lane ground flushes.
The utility model compared with prior art, have the following advantages that and the utility model has the advantages that
(1) a kind of high-efficient ventilation system for tunnel provided by the utility model uses between adjacent air outlet
It is serious to improve air pollution for the distance between distance and adjacent the exhaust outlet setting method incremented by successively along tunnel longitudinal midline
The air-supply air draft frequency of tunnel depths improves the ventilation effect of tunnel depths, reaches the high-efficient ventilation of tunnel entirety.
(2) a kind of high-efficient ventilation system for tunnel provided by the utility model is built-in in air outlet and exhaust outlet
There is the electric closed valve door with control device circuit connection, the tunnel of fire can not occur by closing when tunnel fire hazard occurs
The air outlet and exhaust outlet of road section open the air outlet and exhaust outlet that the tunnel construction sections of fire occur, a large amount of cigarettes that fire is generated
Tunnel is rapidly discharged in gas, and flue gas is avoided to diffuse in tunnel, causes bigger personnel, property loss.
(3) a kind of high-efficient ventilation system for tunnel provided by the utility model is provided with wind at supply air duct both ends
To detection device and wind detection device, the wind direction and wind-force of natural wind can use, open or close supply air duct road junction and set
The air supply motor set, is blown using natural wind, is reduced the energy consumption of ventilating system, is improved efficiency.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model side view；
Wherein: 1-tunnel body, 2-supply air ducts, 3-wind output channels, 4-air outlets, 5-exhaust outlets, 6-air-supply wind
Machine, 7-exhaust fans, 8-control devices, 9-environment monitoring devices, 10-electric closed valve doors.
Specific embodiment
The utility model is described in further detail below with reference to embodiment, but the embodiments of the present invention is not
It is limited to this.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of high-efficient ventilation system for tunnel, suitable for wagon flow it is two-way by tunnel, institute
Stating tunnel includes the tunnel body 1 passed through for wagon flow longitudinally extended.The ventilating system includes that sending for tunnel two sides is arranged in
Wind air duct 2 and the wind output channel 3 that tunnel upper is set；The 1 inner sidewall lower part of tunnel body is provided with multiple air outlets 4, institute
Air outlet 4 is stated to be connected to supply air duct 2；The 1 inner wall upper end of tunnel body is provided with multiple exhaust outlets 5, the exhaust outlet 5 and row
Wind air duct 3 is connected to；The distance between the distance between described adjacent air outlet 4 and adjacent exhaust outlet 5 along tunnel longitudinal midline to
Both sides extend setting incremented by successively；The 2 both ends road junction of supply air duct is provided with breeze fan 6, the 3 both ends road of wind output channel
Mouth is provided with exhaust fan 7.2 both ends of supply air duct are provided with as outwardly open horn mouth, are inhaled into air easily
In supply air duct 2, the flow velocity for entering the air of supply air duct 2 is improved.The lower edge of the supply air duct 2 at a distance from ground for 1 ~
2m；The lower edge of the air outlet 4 is flushed with 1 inside lane ground of tunnel body.
At the tunnel both ends close to tunnel face, due to easily forming convection current with extraneous natural wind, air pollutants
Increase is often unobvious, therefore, there is no need to that ventilation device is arranged.But for close to tunnel middle position tunnel depths, due to
Completely cut off completely with extraneous natural wind and come, the tail gas of a large amount of vehicle discharges cannot dilute in tunnel, pollute the most serious.And
When tunnel blocks up, most of situation that blocks up occurs in tunnel depths, therefore, the closer tunnel face of the ventilation pressure of tunnel depths
It is much larger.
Air outlet 4 and exhaust outlet 5 are set by the way of successively successively decreasing along tunnel longitudinal midline to both sides extension, make to pollute
Serious tunnel depths air outlet 4, exhaust outlet 5 relatively pollute that slight tunnel face is intensive, make the air of tunnel depths by dilute rapidly
It releases, and tunnel is discharged rapidly by exhaust outlet 5, improve drafting efficiency.Meanwhile air outlet 4 is arranged under 1 inside two sides of tunnel body
Portion, the setting of exhaust outlet 5 form the air flow direction from tunnel lower part to tunnel top, band in 1 inside top surface of tunnel body in tunnel
The tail gas of motor-car discharge is discharged above tunnel body 1.Meanwhile exhaust fan 7 is arranged in 3 both ends of wind output channel, to tunnel both ends
It extracts muddy air out, forms negative pressure in wind output channel 3, promote air muddy in tunnel to flow to wind output channel 3, make it
It is not easy to flow back.
Embodiment 2
The present embodiment is to improve on the basis of embodiment 1, is theed improvement is that: the ventilating system further includes
The control device 8 being arranged in outside tunnel and the environment monitoring device 9 being arranged in tunnel body 1, the environment monitoring device 9 include
Temperature sensor, smoke detectors, CO sensor, the control device 8 are passed with temperature sensor, smoke detectors, CO respectively
7 circuit connection of sensor, breeze fan 6 and exhaust fan.The air outlet 4 and exhaust outlet 5 are built-in with and 8 circuit of control device
The electric closed valve door 10 of connection, by control device 8, remotely control is automatically turned on or is closed the electric closed valve door 10.
The control device 8 can be remotely located, convenient for the long-range control and maintenance of ventilating system.Especially for topography danger
High or remote tunnel, remotely located control device 8 can be built and maintenance cost, and adjusts tunnel according to tunnel situation in time
The air inlet and air draft situation in road, reduce the person, the property loss of tunnel accident.
When fire occurs for tunnel, it can be closed by remotely controlling the electric closed valve door 10 built in air outlet 4 and exhaust outlet 5
The air outlet 4 and exhaust outlet 5 that the tunnel construction sections of fire do not occur are closed, the air outlet 4 and exhaust outlet that the tunnel construction sections of fire occur are opened
5, tunnel is rapidly discharged in a large amount of flue gases that fire generates, avoids flue gas from diffusing in tunnel, causes bigger personnel, property
Loss.
Other parts are substantially the same manner as Example 1 in the present embodiment, therefore no longer repeat one by one.
Embodiment 3
The present embodiment is to improve on the basis of embodiment 1, is theed improvement is that: 2 both ends of supply air duct
Be provided with wind direction detection device and wind detection device, the wind detection device and wind direction detection device with control device 8
Circuit connection.Area biggish for wind-force can use the wind direction and wind-force of natural wind, open or close supply air duct 2
The air supply motor of mouth setting, is blown using natural wind, reduces the energy consumption of ventilating system, improve efficiency.
Other parts are substantially the same manner as Example 1 in the present embodiment, therefore no longer repeat one by one.
The above is only the preferred embodiment of the utility model, not does limit in any form to the utility model
System, any simple modification made by the above technical examples according to the technical essence of the present invention, equivalent variations, each falls within
Within the protection scope of the utility model.
Claims (6)
1. a kind of high-efficient ventilation system for tunnel, for wagon flow it is two-way by tunnel, the tunnel includes longitudinal extends
The tunnel body (1) passed through for wagon flow, it is characterised in that: the ventilating system includes the supply air duct that tunnel two sides are arranged in
(2) and the wind output channel (3) of tunnel upper is set；Tunnel body (1) the inner sidewall lower part is provided with multiple air outlets (4),
The air outlet (4) is connected to supply air duct (2)；Tunnel body (1) the inner wall upper end is provided with multiple exhaust outlets (5), described
Exhaust outlet (5) is connected to wind output channel (3)；The distance between described adjacent air outlet (4) between adjacent exhaust outlet (5) away from
Extend setting incremented by successively to both sides from along tunnel longitudinal midline；Supply air duct (2) the both ends road junction is provided with breeze fan
(6), wind output channel (3) the both ends road junction is provided with exhaust fan (7).
2. a kind of high-efficient ventilation system for tunnel according to claim 1, it is characterised in that: the ventilating system is also
Including the control device (8) being arranged in outside tunnel and the environment monitoring device (9) being arranged in tunnel body (1), the environment prison
Surveying device (9) includes temperature sensor, smoke detectors, CO sensor, the control device (8) respectively with temperature sensor,
Smoke detectors, CO sensor, breeze fan (6) and exhaust fan (7) circuit connection.
3. a kind of high-efficient ventilation system for tunnel according to claim 2, it is characterised in that: the air outlet (4)
It is built-in with and the electric closed valve door (10) of control device (8) circuit connection, the electric closed valve door with exhaust outlet (5)
(10) by control device (8), remotely control is automatically turned on or is closed.
4. a kind of high-efficient ventilation system for tunnel according to claim 2, it is characterised in that: the supply air duct
(2) both ends are provided with wind direction detection device and wind detection device, the wind detection device and wind direction detection device with control
Device (8) circuit connection processed.
5. described in any item a kind of high-efficient ventilation systems for tunnel according to claim 1 ~ 4, it is characterised in that: described to send
Wind air duct (2) both ends are disposed as outwardly open horn mouth.
6. described in any item a kind of high-efficient ventilation systems for tunnel according to claim 1 ~ 4, it is characterised in that: described to send
The lower edge in wind air duct (2) is 1 ~ 2m at a distance from ground；The lower edge of the air outlet (4) and tunnel body (1) inside lane ground are neat
It is flat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821248582.5U CN208534524U (en) | 2018-08-03 | 2018-08-03 | A kind of high-efficient ventilation system for tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821248582.5U CN208534524U (en) | 2018-08-03 | 2018-08-03 | A kind of high-efficient ventilation system for tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208534524U true CN208534524U (en) | 2019-02-22 |
Family
ID=65386166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821248582.5U Expired - Fee Related CN208534524U (en) | 2018-08-03 | 2018-08-03 | A kind of high-efficient ventilation system for tunnel |
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| Country | Link |
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| CN (1) | CN208534524U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197390A (en) * | 2020-11-13 | 2021-01-08 | 黄河勘测规划设计研究院有限公司 | High-density hidden-hole pedestrian passageway fire protection system |
-
2018
- 2018-08-03 CN CN201821248582.5U patent/CN208534524U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197390A (en) * | 2020-11-13 | 2021-01-08 | 黄河勘测规划设计研究院有限公司 | High-density hidden-hole pedestrian passageway fire protection system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190222 Termination date: 20210803 |
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| CF01 | Termination of patent right due to non-payment of annual fee |