CN204436433U - A kind of submerged tunnel ventilation system - Google Patents
A kind of submerged tunnel ventilation system Download PDFInfo
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- CN204436433U CN204436433U CN201520095438.2U CN201520095438U CN204436433U CN 204436433 U CN204436433 U CN 204436433U CN 201520095438 U CN201520095438 U CN 201520095438U CN 204436433 U CN204436433 U CN 204436433U
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Abstract
The utility model discloses a kind of submerged tunnel ventilation system, ventilating shaft exhast duct and ventilating shaft air delivery duct are set at service tunnel two ends, and be connected with exhast duct and air delivery duct, exhast duct is communicated with main tunnel by air draft contact air channel, air delivery duct is communicated with main tunnel by air-supply contact air channel, is provided with replacement aeration contact air channel and is connected in two main tunnels between two main tunnels; Fresh air enters air delivery duct from ventilating shaft air delivery duct, service tunnel two ends, main tunnel is entered through air-supply service channel, opening displacement axial flow blower makes air-flow in main tunnel enter another main tunnel by replacement aeration contact air channel, then is discharged by contaminated air in ventilating shaft exhast duct through air draft service channel, exhast duct; This ventilation system utilizes service tunnel in tunnel, input fresh air as air channel and discharge contaminated air, solves the long distance in tunnel and passes through waters part arranges a man-made island ventilating shaft difficult problem every several kilometers of need.
Description
Technical field
The utility model belongs to highway field, tunnel, is specifically related to a kind of submerged tunnel ventilation system.
Background technology
Air conditions good in highway tunnel is the necessary condition of traffic safety, and ventilation is in order to the concentration of the pernicious gas in tunnel or pollutant is reduced, and ensures safety and the comfortableness of running car.At present, China adopts ventilating shaft segmentation longitudinal ventilation mode to solve the ventilating problem of speciality mountain tunnel usually, namely arranges a ventilating shaft every several kilometers of need and in tunnel, inputs fresh air to meet operation demand in tunnel.The speciality submerged tunnel that current China has built up also uses this ventilation system, and ventilating shaft is all arranged at land.Be limited to aeration technology bottleneck, submerged tunnel passes through waters partial-length and not yet breaks through 8 kilometers.
Along with the length in tunnel over strait is longer, sea is wider, if still adopt traditional ventilating shaft sectionalized ventilation mode just to need to arrange man-made island.And very large in the marine economic technology difficulty arranging artificial island airshaft, and cost is high, particularly in abysmal area, is almost impossible.Thus restriction highway tunnel segment length over strait and the application of tunnel in Sea-Crossing Passage.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of without the need to arranging man-made island ventilating shaft, directly utilizing service tunnel to input fresh air in tunnel and discharge air-polluting submerged tunnel ventilation system.
For achieving the above object, the utility model provides following technical scheme: a kind of submerged tunnel ventilation system, comprise main tunnel and service tunnel, described main tunnel has two, described service tunnel is arranged between two main tunnels, and be provided with independently air inlet duct and exhast duct in described service tunnel, two ends are provided with ventilating shaft air channel, described ventilating shaft air channel comprises ventilating shaft air delivery duct and ventilating shaft exhast duct, and described ventilating shaft send, exhast duct correspondence is connected with air inlet duct and exhast duct; Described exhast duct is connected with the air outlet in main tunnel by air draft contact air channel, and described air inlet duct is connected with the air outlet in main tunnel by air-supply contact air channel.
Further, described main tunnel is at least provided with two replacement aeration contact air channels be connected in two main tunnels.
Further, described air draft contact air channel and air-supply are got in touch with correspondence in air channel and are provided with adjusting air valve.
Further, displacement axial flow blower is provided with in described replacement aeration contact air channel.
Further, jet blower is provided with in described main tunnel.
Further, described ventilating shaft send, correspondence is provided with air-supply axial flow blower and air draft axial flow blower in exhast duct.
The beneficial effects of the utility model are: submerged tunnel ventilation system setups of the present utility model is simple, little to existing structure transformation amount, greatly reduces difficulty of construction, reduces construction costs simultaneously, saved cost input; Comprehensive utilization service tunnel is as exhast duct and air delivery duct, instead of special ventilating shaft, effectively prevent and man-made island is set in waters part, not only save construction of tunnel cost, also reduce the environmental disruption to waters, engineering place, solve the aeration technology difficult problem that the long distance of highway tunnel passes through waters part.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and beneficial effect clearly, the utility model provides following accompanying drawing to be described:
Fig. 1 is submerged tunnel ventilation system layout schematic diagram;
Fig. 2 is operating principle schematic diagram when adopting service tunnel air-supply, air draft+jet blower ventilation;
Fig. 3 is operating principle schematic diagram when adopting service tunnel air-supply, air draft+replacement aeration;
Fig. 4 is operating principle schematic diagram when adopting service tunnel air-supply, air draft+replacement aeration+combined ventilating;
Fig. 5 is ventilation well array, schematic diagram is arranged in air delivery duct and row, air delivery duct;
Fig. 6 is A-A schematic cross-sectional view;
Fig. 7 is B-B schematic cross-sectional view;
Fig. 8 is C-C schematic cross-sectional view;
Fig. 9 is D-D schematic cross-sectional view.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
As shown in the figure, a kind of submerged tunnel ventilation system, comprise main tunnel 1 and service tunnel 2, described main tunnel 1 has two, described service tunnel 2 is arranged between two main tunnels 1, and be provided with independently air inlet duct 3 and exhast duct 4 in described service tunnel 2, two ends are provided with ventilating shaft air channel, described ventilating shaft air channel comprises ventilating shaft air delivery duct 5 and ventilating shaft exhast duct 6, and described ventilating shaft send 5, exhast duct 6 is corresponding is connected with air inlet duct 3 and exhast duct 4; Described exhast duct 4 is connected with the air outlet in main tunnel 1 by air draft contact air channel 7, and described air inlet duct 3 is connected with the air outlet in main tunnel 1 by air-supply contact air channel 8.This ventilation system is introduced new wind by means of service tunnel 2, is discharged contaminated air in main tunnel 1, ventilating shaft air channel is arranged on service tunnel 2 two ends, for tunnel over strait, without the need to arranging artificial island airshaft again, reduce construction difficulty, save construction cost.
As the further improvement of such scheme, described main tunnel 1 being at least provided with two replacement aeration contact air channels 9 be connected in two main tunnels 1, by arranging replacement aeration contact air channel 9, the air in two two main tunnels 1 can being replaced.
As the further improvement of such scheme, described air draft contact air channel 7 and air-supply are got in touch with correspondence in air channel 8 and are provided with adjusting air valve 10, can realize the control to exhaust air rate and intake.
As the further improvement of such scheme, the contact of described replacement aeration is provided with displacement axial flow blower 11 in air channel 9, and described ventilating shaft send, correspondence is provided with air-supply axial flow blower 12 and air draft axial flow blower 13 in exhast duct, and each axial flow blower significantly can promote drafting efficiency.
As the further improvement of such scheme, be provided with jet blower 14 in described main tunnel 1, supercharging is carried out to the air in main tunnel 1, realize the longitudinal induced draught in main tunnel 1, improve the ventilation effect in tunnel.
Concrete, in the present embodiment, service tunnel 2 is laid between two main tunnels 1, and service tunnel 2 can be laid along main tunnel 1 total length or be laid in (waters part) in the middle part of tunnel.When laying in the middle part of tunnel, ventilating shaft air channel is laid in service tunnel 2 hole place; When laying along main tunnel 1 total length, ventilating shaft air channel is laid in bank.
In the present embodiment, air inlet duct 3 and exhast duct 4 longitudinally isolation are arranged on service tunnel 2 top, and are communicated with main tunnel 1, for the contaminated air introduced new wind or discharge in main tunnel in main tunnel 1 by air draft contact air channel 7 and air-supply contact air channel 8.Certainly, also can directly utilize service tunnel 2, now, adopt dividing plate that service tunnel 2 is separated into air inlet duct 3 and exhast duct 4.Also it should be noted that in addition, air inlet duct 3 herein doubles as escape and rescue passage and uses.
The middle part that air channel 8 is arranged at main tunnel 1 is got in touch with air-supply in air draft contact air channel 7 in the present embodiment, and concrete laying quantity can judge according to the length situation in main tunnel 1.Air draft contact is provided with adjusting air valve 10 in air channel 7, can be used for regulating the flow of discharging main tunnel 1 internal contamination air through exhast duct; Air-supply contact is provided with adjusting air valve 10 in air channel 8, can be used for regulating the flow being input to fresh air in main tunnel 1 through air inlet duct 3.
Replacement aeration contact air channel 9 in the present embodiment is provided with many places, is laid in Portal Section and the middle part in main tunnel 1 respectively, and replacement aeration contact is provided with displacement axial flow blower 11 in air channel 9, for replacing the air-flow in main tunnel 1 in another tunnel.
This submerged tunnel ventilation system realizes the method for ventilation of tunnel ventilation, mainly comprises the following steps:
1) in main tunnel 1, arrange jet blower 14, and jet blower 14 direction in two main tunnels 1 is contrary, carries out longitudinal induced draught by jet blower 14;
2) main tunnel 1 is divided into Portal Section and middle part three part, replacement aeration contact air channel 9 is set at Portal Section, opens displacement axial flow blower 11, by replacement aeration contact air channel 9, the new wind in a main tunnel 1 is replaced in another main tunnel 1;
3) according to main tunnel 1 middle part length situation, the draft type of middle part is selected:
I) when middle part is shorter, at middle part, air-supply contact air channel 8, some places and air draft contact air channel 7 are set, open air-supply axial flow blower 12 and air draft axial flow blower 13, correspondence inputs new wind to main tunnel 1 middle part, and discharges the contaminated air flowing through main tunnel 1 middle part;
Ii), when middle part is longer, air-supply contact air channel 8, some places, air draft contact air channel 7 and replacement aeration contact air channel 9 are set at middle part two ends; Open air-supply axial flow blower 12, make new wind enter main tunnel 1 middle part; Open displacement axial flow blower 11, make the air-flow in main tunnel 1 middle part enter in another main tunnel 1 by replacement aeration contact air channel 9; Open air draft axial flow blower 13, discharge currents is through the contaminated air of main tunnel 1 middle part.
Concrete, fresh air enters tunnel from direction of traffic entrance, main tunnel 1, tunnel portal section is passed through under the pressurization of jet blower 14, open displacement axial flow blower 11, in main tunnel 1, air is fed through another main tunnel portal section by replacement aeration contact air channel 9 at a high speed through replaceable ventilating opening, and contaminated air is discharged with the outlet of main tunnel direction of traffic.
When main tunnel 1 middle part is shorter, mode that main tunnel middle part adopts " service tunnel air-supply, air draft+jet blower are ventilated ": open the air-supply axial flow blower 12 arranged in ventilating shaft air delivery duct 5, fresh air enters main tunnel 1 by air inlet duct 3, air-supply contact air channel 8; Open jet blower 14, fresh air passes through main tunnel 1 under the pressurization of jet blower 14; Open the air draft axial flow blower 13 arranged in ventilating shaft exhast duct 6, contaminated air enters exhast duct 4 by air draft contact air channel 7 in main tunnel, discharges from ventilating shaft exhast duct 6.
As shown in Figure 2, Portal Section required new wind 101 in main tunnel 1 enters main tunnel 1 from tunnel direction of traffic import 15, by main tunnel portal section under the pressurization of jet blower 14, open displacement axial flow blower 11, make air-flow 102 enter to another main tunnel portal section by replacement aeration contact air channel 9, contaminated air 103 is discharged from tunnel direction of traffic outlet 16.Air draft contact air channel 7 and air-supply contact air channel 8 is communicated with in the middle part of main tunnel, by opening air-supply axial flow blower 12, make required new wind 201 enter main hole 1, tunnel from ventilating shaft air delivery duct 5, enter in process, distinguished and admirable 202 successively through air inlet duct 3 and air-supply contact air channel 8; Open jet blower 14, air passes through main tunnel under the pressurization of jet blower 14; Open the air draft axial flow blower 13 in service tunnel 2 other end ventilating shaft exhast duct 6, contaminated air 204 is discharged from service tunnel other end ventilating shaft exhast duct 6 through air draft contact air channel 7, exhast duct 4.
When main tunnel 1 middle part is longer, adopt " air-supply of service tunnel air channel, air draft+replacement aeration " mode to ventilate in the middle part of main tunnel: by opening the air-supply axial flow blower 12 arranged in ventilating shaft air delivery duct 5, fresh air enters main tunnel 1 by air inlet duct 3, air-supply contact air channel 8; Open the displacement axial flow blower 11 arranged in replacement aeration contact air channel 9, in main tunnel 1, air-flow enters in another main tunnel by replacement aeration contact air channel 9; Open the air draft axial flow blower 13 arranged in ventilating shaft exhast duct 6, contaminated air enters exhast duct 4 by air draft contact air channel 7 in main tunnel, discharges from ventilating shaft exhast duct 6.
As shown in Figure 3, tunnel portal section embodiment is the same, main tunnel middle part is communicated with air draft contact air channel 7, air-supply contact air channel 8 and replacement aeration contact air channel 9, open the air-supply axial flow blower 12 arranged in ventilating shaft air delivery duct 5, required new wind 201 is made to enter main tunnel 1 from ventilating shaft air delivery duct 5, enter in process, distinguished and admirable 202 successively through air inlet duct 3 and air-supply contact air channel 8; Open the displacement axial flow blower 11 arranged in replacement aeration contact air channel 9, make air-flow 203 in main tunnel enter in another main tunnel by replacement aeration contact air channel 9; Open the air draft axial flow blower 13 arranged in ventilating shaft exhast duct 6, contaminated air 204 is discharged from ventilating shaft exhast duct 6 through air draft contact air channel 7, exhast duct 4.
According to concrete engineering situation, " service tunnel air-supply, air draft+jet blower are ventilated " and the draft type combined both " service tunnel blow, air draft+replacement aeration " also can be adopted in the middle part of tunnel, as shown in Figure 4, to improve its ventilation, ventilation effect.
What finally illustrate is, above preferred embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model by above preferred embodiment, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from the utility model claims limited range.
Claims (6)
1. a submerged tunnel ventilation system, comprise main tunnel and service tunnel, it is characterized in that: described main tunnel has two, described service tunnel is arranged between two main tunnels, independently air inlet duct and exhast duct is provided with in described service tunnel, two ends are provided with ventilating shaft air channel, and described ventilating shaft air channel comprises ventilating shaft air delivery duct and ventilating shaft exhast duct, and described ventilating shaft send, exhast duct correspondence is connected with air inlet duct and exhast duct; Described exhast duct is connected with the air outlet in main tunnel by air draft contact air channel, and described air inlet duct is connected with the air outlet in main tunnel by air-supply contact air channel.
2. submerged tunnel ventilation system according to claim 1, is characterized in that: described main tunnel is at least provided with two replacement aeration contact air channels be connected in two main tunnels.
3. submerged tunnel ventilation system according to claim 1, is characterized in that: described air draft contact air channel and air-supply are got in touch with correspondence in air channel and be provided with adjusting air valve.
4. submerged tunnel ventilation system according to claim 2, is characterized in that: be provided with displacement axial flow blower in described replacement aeration contact air channel.
5. submerged tunnel ventilation system according to claim 1, is characterized in that: be provided with jet blower in described main tunnel.
6. submerged tunnel ventilation system according to claim 1, is characterized in that: described ventilating shaft send, correspondence is provided with air-supply axial flow blower and air draft axial flow blower in exhast duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520095438.2U CN204436433U (en) | 2015-02-10 | 2015-02-10 | A kind of submerged tunnel ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520095438.2U CN204436433U (en) | 2015-02-10 | 2015-02-10 | A kind of submerged tunnel ventilation system |
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| Publication Number | Publication Date |
|---|---|
| CN204436433U true CN204436433U (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520095438.2U Withdrawn - After Issue CN204436433U (en) | 2015-02-10 | 2015-02-10 | A kind of submerged tunnel ventilation system |
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| Country | Link |
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| CN (1) | CN204436433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675424A (en) * | 2015-02-10 | 2015-06-03 | 招商局重庆交通科研设计院有限公司 | Underwater tunnel ventilation system and ventilation method |
-
2015
- 2015-02-10 CN CN201520095438.2U patent/CN204436433U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675424A (en) * | 2015-02-10 | 2015-06-03 | 招商局重庆交通科研设计院有限公司 | Underwater tunnel ventilation system and ventilation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150701 Effective date of abandoning: 20171208 |
|
| AV01 | Patent right actively abandoned |