CN209519531U - A kind of air cleaning system suitable for city tunnel - Google Patents
A kind of air cleaning system suitable for city tunnel Download PDFInfo
- Publication number
- CN209519531U CN209519531U CN201822115729.XU CN201822115729U CN209519531U CN 209519531 U CN209519531 U CN 209519531U CN 201822115729 U CN201822115729 U CN 201822115729U CN 209519531 U CN209519531 U CN 209519531U
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- air
- tunnel
- cleaning system
- air cleaning
- civil engineering
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The utility model discloses a kind of air cleaning systems suitable for city tunnel, it is characterized by comprising supply air systems and air cleaning system, the supply air system includes being set to the civil engineering air delivery duct of tunnel top, and forced draft mouth is arranged in the bottom of the civil engineering air delivery duct；The air cleaning system is set to tunnel-side, and air inlet and air outlet including being set to tunnel-side are disposed with filter, electrostatic precipitator, axial flow blower and NO between air inlet and air outlet2Purification device；Outdoor fresh air is sent in tunnel by civil engineering air delivery duct and forced draft mouth by tunnel top under the action of tunnel pressure fan, pure air zone of positive pressure is formed in tunnel middle and upper part, the exhaust gas generated in vehicle traveling process enters air cleaning system by air inlet and is processed into cleaned air, then is sent back in tunnel again by air outlet.The utility model removes tunnel air particulate matter, ensure that the health of tunnel internal and tunnel exit periphery personnel.
Description
Technical field
The utility model relates to tunnel ventilation field of purification, disclose a kind of air cleaning system suitable for city tunnel
System.
Background technique
With the increase of the city automobile volume of traffic, automobile can generate a large amount of particulate matter and NO in tunnel2, on the one hand these
Pernicious gas can be due to being brought to outside tunnel exit, to generate pollutant diffusion at tunnel exit under the action of Piston Action Wind
Area generates health hazard to the personnel for living in tunnel exit periphery, and another aspect tunnel internal also has a large amount of harmful gas
Body can endanger the health of the driver and passenger of tunnel internal, while tunnel internal is full of smoke, reduce the visibility in tunnel, be
Potential hidden trouble of traffic.
Utility model content
The utility model is directed to the status of existing tunnel air pollution, and it is net to provide a kind of air suitable for city tunnel
Change system.
In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals: one kind being suitable for city
The air cleaning system in city tunnel, it is characterised in that: tunnel top is provided with civil engineering air delivery duct, and tunnel is equipped with tunnel air-supply on one side
Forced draft mouth is arranged in the bottom of machine, the civil engineering air delivery duct；The air cleaning system is set to tunnel-side, including setting
In the air inlet and air outlet of tunnel-side, filter, electrostatic precipitator, axis stream are disposed between air inlet and air outlet
Blower and NO2Purification device；Outdoor fresh air is under the action of tunnel pressure fan by civil engineering air delivery duct and forced draft mouth by tunnel
Road top is sent in tunnel, forms pure air zone of positive pressure in tunnel middle and upper part, the exhaust gas generated in vehicle traveling process is logical
It crosses air inlet and enters air cleaning system and be processed into cleaned air, then sent back in tunnel again by air outlet.
Further, air cleaning system is provided on the side wall of tunnel two sides.
Further, the air inlet and air outlet of the air cleaning system are set between tunnel-side 0.1m ~ 2.0m,
Under pure air zone of positive pressure and the effect of the double factor of motor vehicle exhaust emission height, this height is automobile exhaust gas in tunnel
Accumulation regions are conducive to air cleaning system efficient operation.
Further, the filter is arranged using gridding, to cross 1 micron or more in air filtering of particle.
Further, the electrostatic precipitator is made of aluminium and stainless steel alloy, and the electrostatic precipitator uses module
Change design, to meet all kinds of tunnel requirements, the electrostatic precipitator is used to filter 0.1 micron or more in tunnel air of
Grain.
Further, the NO2It is filled with active carbon in purification device, guarantees absorption system using the absorption principle of active carbon
That unites is safe and reliable.
Traditional Tunnel Ventilation System uniquely relies on the Piston Action Wind or mechanical dust removal of automobilism generation, by automobile
Exhaust gas drains into outdoor without processing, and polluted gas accumulation regions can be thus generated in the certain area of tunnel air outlet, harm
The health of this area people.Purification system is set to tunnel-side by the utility model, the expensive real estate being not take up outside tunnel,
And using the dirty gas in purification system processing tunnel, the air quality of tunnel internal and tunnel air outlet region ensure that.
The utility model the air outlet of purification system can be both arranged within the scope of tunnel exit 50m ~ 100m, guarantee that tunnel goes out
The cleanliness of air at air port, and the system can be arranged in tunnel middle section, tunnel air particulate matter is removed, tunnel is improved
Visibility ensure that the health of tunnel internal and tunnel exit periphery personnel.The utility model can filter the 0.1 of 95%
Micron or more particle, while removing 85% NO in vehicle exhaust2。
Detailed description of the invention
Fig. 1 is a kind of bypass type purification system elevation suitable for city two-way traffic tunnel.
Fig. 2 is a kind of bypass type purification system sectional view suitable for city two-way traffic tunnel.
Specific embodiment
Referring to attached drawing 1 to attached drawing 2 and embodiment, the utility model is described in further detail:
1-civil engineering air delivery duct in figure, 2-forced draft mouths, 3-air ports, 31-air inlets, 32-exhaust outlets, 4-purifications
Device, 41-filters, 42-electrostatic precipitator, 43-axial flow blowers, 44-NO2Purification device.
A kind of air cleaning system suitable for city tunnel, it is characterised in that: including supply air system and air cleaning system
System.Supply air system includes being located at the tunnel pressure fan of tunnel one side, and tunnel top is equipped with the civil engineering being connected with tunnel pressure fan and send
Air duct 1,1 bottom of civil engineering air delivery duct are equipped with forced draft mouth 2, and air cleaning system includes that air inlet 31, filter 41, electrostatic remove
Dirt device 42, axial flow blower 43, NO2Purification device 44, air outlet 32, outdoor fresh air pass through civil engineering under the action of tunnel pressure fan
Air delivery duct 1 and forced draft mouth 2 are sent in tunnel by tunnel top, form pure air zone of positive pressure, vapour in tunnel middle and upper part
A large amount of particulate matter and NO can be generated in vehicle driving process2, these pernicious gases in pure air positive pressure and axial flow blower 43
Under double action, filter 41, electrostatic precipitator 42, NO are passed sequentially through2Purification device 44 is processed into cleaned air, again
Send back in tunnel；
The air inlet and air outlet of the air cleaning system are set to the height of tunnel-side between 0.1m ~ 2.0m,
Under pure air zone of positive pressure and the effect of the double factor of motor vehicle exhaust emission height, this height is automobile exhaust gas in tunnel
Accumulation regions are conducive to air cleaning system efficient operation；
The filter 41 arranged using gridding, using the flowing of air, filter 1 micron of in tunnel air 90% with
On particle；
The electrostatic precipitator 42 is made of aluminium and stainless steel alloy, and service life is 25 years；
The electrostatic precipitator 42 uses modularized design, meets all kinds of tunnel requirements, can be in high efficiency filter air 95%
0.1 micron or more of particle；
The NO2It is filled with a large amount of active carbon in purification device 44, guarantees absorption system using the absorption principle of active carbon
That unites is safe and reliable.
Embodiment
Outdoor fresh air is sent into tunnel by civil engineering air delivery duct 1 by the tunnel pressure fan being set in the air-supply computer room of tunnel one side
Road, supply air system can provide 3m according to the difference in tunnel for every square metre of forced draft mouth 23/s~10m3The air quantity of/s, so that
5pa ~ 20pa pressure difference is generated between tunnel middle and upper part and tunnel lower part, the air quantity of axial flow blower 43 can be in 100m3/s~
300m3/ s is selected, the foul atmosphere in tunnel under the action of tunnel top and the bottom air pressure and axial flow blower 43, by into
Air port 31 enters purification device 4, and the length of entire purification device 4 can be according to the difference and local environmental impact assessment of tunnel traffic amount
It is required that being selected between 35m ~ 80m, through testing, make in pure air zone of positive pressure and the double factor of motor vehicle exhaust emission height
Under, away from ground level 0.1m ~ 2.0m) be automobile exhaust gas in tunnel accumulation regions, therefore the air inlet of purification device 4 is set to
The height of tunnel-side is between 0.1m ~ 2.0m.Foul atmosphere by filter 31 primarily efficient filter and electrostatic precipitator 41
After high efficiency filter, extracted by axial flow blower 43, axial flow blower 43 use low-speed running mode, not only can energy saving, also
Air-flow can be made uniform, be more advantageous to NO2The absorption work of purification device 44 passes through purification device 4 by this process
Foul atmosphere in 95%0.1 microns or more of particle and 85% NO2It is removed, improves tunnel visibility, ensure that tunnel
Internal and tunnel exit periphery personnel healths.
Although above-mentioned be described in conjunction with specific embodiment of the attached drawing to utility model, not utility model is protected
The limitation of range is protected, those skilled in the art should understand that, based on the technical solution of the present invention, this field skill
Art personnel do not need to make the creative labor the various modifications or changes that can be made still within the protection scope of the present utility model.
Claims (5)
1. a kind of air cleaning system suitable for city tunnel, it is characterised in that: tunnel top is provided with civil engineering air delivery duct, tunnel
Road is equipped with tunnel pressure fan on one side, and forced draft mouth is arranged in the bottom of the civil engineering air delivery duct；The air cleaning system setting
In tunnel-side, air inlet and air outlet including being set to tunnel-side were disposed between air inlet and air outlet
Filter, electrostatic precipitator, axial flow blower and NO2Purification device；Outdoor fresh air is sent under the action of tunnel pressure fan by civil engineering
Air duct and forced draft mouth are sent in tunnel by tunnel top, form pure air zone of positive pressure, garage in tunnel middle and upper part
The exhaust gas generated during sailing enters air cleaning system by air inlet and is processed into cleaned air, then is sent again by air outlet
It returns in tunnel.
2. a kind of air cleaning system suitable for city tunnel according to claim 1, it is characterised in that: the air
The air inlet and air outlet of purification system are set to the height of tunnel-side between 0.1m ~ 2.0m.
3. a kind of air cleaning system suitable for city tunnel according to claim 1, it is characterised in that: the filtering
Device is arranged using gridding, using the flowing of air, crosses 1 micron or more in air filtering of particle.
4. a kind of air cleaning system suitable for city tunnel according to claim 1, it is characterised in that: the electrostatic
Deduster is made of aluminium and stainless steel alloy, and the electrostatic precipitator uses modularized design, for filtering in tunnel air
0.1 micron or more of particle.
5. a kind of air cleaning system suitable for city tunnel according to claim 1, it is characterised in that: the NO2Only
Makeup is filled with active carbon in setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822115729.XU CN209519531U (en) | 2018-12-17 | 2018-12-17 | A kind of air cleaning system suitable for city tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822115729.XU CN209519531U (en) | 2018-12-17 | 2018-12-17 | A kind of air cleaning system suitable for city tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209519531U true CN209519531U (en) | 2019-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822115729.XU Active CN209519531U (en) | 2018-12-17 | 2018-12-17 | A kind of air cleaning system suitable for city tunnel |
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| CN (1) | CN209519531U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472830A (en) * | 2020-01-08 | 2020-07-31 | 西南交通大学 | Selection method and design method of electrostatic dust removal equipment for tunnel |
-
2018
- 2018-12-17 CN CN201822115729.XU patent/CN209519531U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472830A (en) * | 2020-01-08 | 2020-07-31 | 西南交通大学 | Selection method and design method of electrostatic dust removal equipment for tunnel |
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