CN219974546U - Tunnel ventilation system is worn under shallow city - Google Patents
Tunnel ventilation system is worn under shallow city Download PDFInfo
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- CN219974546U CN219974546U CN202321659909.9U CN202321659909U CN219974546U CN 219974546 U CN219974546 U CN 219974546U CN 202321659909 U CN202321659909 U CN 202321659909U CN 219974546 U CN219974546 U CN 219974546U
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- 238000009423 ventilation Methods 0.000 title claims abstract description 52
- 239000011358 absorbing material Substances 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 9
- 231100000719 pollutant Toxicity 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 230000036541 health Effects 0.000 abstract description 3
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005399 mechanical ventilation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a ventilation system for a shallow city underpass tunnel, which relates to the technical field of tunnel ventilation and comprises the following components: the system comprises a vertical shaft, a fan machine room and natural ventilation openings, wherein the vertical shaft is arranged at two sides of a tunnel; the fan machine room is connected with the lower end of the vertical well and the lower side part of the tunnel, and a fan is arranged in the fan machine room; the natural ventilation opening is arranged at the top of the tunnel. The vertical shaft is arranged near the urban tunnel, and the position can be flexibly selected according to the building and traffic conditions around the tunnel and different geological conditions. According to the utility model, through the fan machine room with the vertical shafts and the lower part of the vertical shaft at the two sides of the tunnel, the fan machine room adopts the shutter air port with the filter screen to send and return air, and the ventilation mode of combining the traditional jet fan and the natural ventilation port is combined, so that the natural ventilation port with limited area achieves better ventilation effect. The ventilation mode can be flexibly changed according to different traffic conditions, the concentration of pollutants in a tunnel can be timely reduced, and the health of personnel can be ensured.
Description
Technical Field
The utility model relates to the technical field of tunnel ventilation, in particular to a shallow city underpass tunnel ventilation system.
Background
Urban tunnels are built in urban central areas with large traffic flow, large people flow density and dense buildings, and the ventilation requirement of the tunnels cannot be met only by using mechanical ventilation in the long-distance urban tunnels, so that the urban tunnels currently commonly adopt a combined ventilation mode. However, in a longer urban tunnel, due to the influence of the urban tunnel on urban road construction and traffic conditions, the openable area of the natural ventilation opening of the urban tunnel is limited, the openable position is not fixed, and the problem of pollutant aggregation at the outlet of the tunnel cannot be solved only by a traditional mechanical ventilation mode, so that the ventilation requirement of the urban tunnel cannot be met.
Meanwhile, in actual engineering, because the tunnel is high and large in space, tail gas discharged by an automobile is easy to deposit at the bottom of the tunnel, and the problem that the tail gas at the bottom of the tunnel cannot be discharged quickly through natural ventilation exists. And then, the natural ventilation openings of the urban tunnel are limited, so that the ventilation problem in the urban tunnel is difficult to effectively solve.
Disclosure of Invention
The utility model aims to provide a ventilation system for a shallow urban underpass tunnel, which aims to solve the problems. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a ventilation system of a shallow city underpass tunnel, which comprises: the system comprises a vertical shaft, a fan machine room and natural ventilation openings, wherein the vertical shaft is arranged at two sides of a tunnel; the fan machine room is connected with the lower end of the vertical well and the lower side part of the tunnel, and a fan is arranged in the fan machine room; the natural ventilation opening is arranged at the top of the tunnel.
Further, the vertical shaft comprises a rain cover, a wind gap filter screen and a wind shaft channel, wherein the wind gap filter screen is arranged at the top end of the wind shaft channel, and the rain cover is arranged right above the wind gap filter screen.
Further, a drainage groove is formed in the bottom of the fan machine room and is connected with a drainage system in the tunnel.
Further, the fan machine room is connected with the lower side part of the tunnel through a shutter air port, and a filter screen is arranged on the shutter air port.
Further, a jet fan is arranged at the top end inside the tunnel, and an air outlet of the jet fan faces towards the natural ventilation opening.
Further, the louver direction of the louver air opening is the direction which is obliquely upwards from the edge of the tunnel to the center of the tunnel, and the height of the louver air opening is consistent with the height of the exhaust pipe at the tail part of the running vehicle in the tunnel.
Furthermore, the inner wall of the wind shaft channel adopts heat absorbing materials.
Furthermore, the vertical shaft, the fan machine room and the natural ventilation openings are all provided with a plurality of groups.
The beneficial effects of the utility model are as follows:
according to the utility model, through the fan machine room with the vertical shafts and the lower part of the vertical shaft at the two sides of the tunnel, the fan machine room adopts the shutter air port with the filter screen to send and return air, and the ventilation mode of combining the traditional jet fan and the natural ventilation port is combined, so that the natural ventilation port with limited area achieves better ventilation effect. The ventilation mode can be flexibly changed according to different traffic conditions, the concentration of pollutants in a tunnel can be timely reduced, and the health of personnel can be ensured.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the embodiments of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of the ventilation of the present utility model under normal traffic conditions;
FIG. 2 is a schematic illustration of ventilation of the present utility model under retarded traffic conditions;
FIG. 3 is a schematic diagram of the air supply structure of the present utility model;
fig. 4 is a schematic diagram of the structure of the utility model in return air.
The marks in the figure: 1. a rain cover; 2. an air port filter screen; 3. a wind shaft passage; 4. a fan machine room; 5. a drainage channel; 6. a blower; 7. a shutter air port; 8. a jet fan; 9. a vehicle; 10. natural ventilation openings.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present utility model, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 and 3, the present embodiment provides a ventilation system for a shallow city underpass tunnel, including: the system comprises a vertical shaft, a fan machine room 4 and natural ventilation openings 10, wherein the vertical shaft is arranged at two sides of a tunnel; the fan machine room 4 is connected with the lower end of the shaft and the lower side part of the tunnel, and a fan 6 is arranged in the fan machine room 4; the natural ventilation opening 10 is arranged at the top of the tunnel. The vertical shaft is arranged near the urban tunnel, and the position can be flexibly selected according to the building and traffic conditions around the tunnel and different geological conditions.
The vertical shaft comprises a rain cover 1, a wind gap filter screen 2 and a wind shaft channel 3, wherein the wind gap filter screen 2 is arranged at the top end of the wind shaft channel 3, and the rain cover 1 is arranged right above the wind gap filter screen 2. The tuyere filter screen 2 is used for preventing garbage in the air outside the vertical shaft from entering.
The bottom of the fan machine room 4 is provided with a drainage groove 5, and the drainage groove 5 is connected with a drainage system in a tunnel. Prevent fan computer lab 4 ponding, influence the operation of fan 6.
The fan machine room 4 is connected with the lower part of the tunnel through a louver air port 7, and a filter screen is arranged on the louver air port 7. The adoption of the shutter air port 7 with the filter screen can effectively prevent garbage in the air in the tunnel from entering.
The top in the tunnel is equipped with jet fan 8, jet fan 8 air outlet is towards natural vent 10.
The louver direction of the louver air opening 7 is the direction which is obliquely upwards from the edge of the tunnel to the center of the tunnel, and the height of the louver air opening 7 is consistent with the height of the tail exhaust pipe of the running vehicle 9 in the tunnel.
The inner wall of the wind shaft channel 3 adopts a heat absorbing material, so that solar heat can be effectively absorbed, the temperature at the top of the vertical shaft is increased, a temperature difference is formed in the vertical direction of the vertical shaft, and the polluted air in the tunnel is discharged in an accelerating way by utilizing the hot pressing effect.
The vertical shaft, the fan machine room 4 and the natural ventilation openings 10 are all provided with a plurality of groups, so that pollutants are dispersed and discharged, and pollutant aggregation is reduced.
As shown in fig. 1 and fig. 3, under normal traffic conditions, the vertical shaft supplies air, and the louver air openings 7 at the tail ends of the air channels are sent into the tunnel in an inclined upward direction, so that the pollutants collected at the bottom of the tunnel float upwards, and the pollutants are sent to the natural ventilation openings in time by using the strong wind pressure effect of the fan 6, so that the pollutants are effectively discharged in time.
As shown in fig. 2 and fig. 4, under the blocking traffic condition, the air duct tail end louver air port 7 sucks the polluted air in the tunnel into the vertical shaft in the downward direction, and the air exhaust is performed in a mode of combining the jet fan 8 with the natural ventilation opening 10, so that the air exhaust effect of the tunnel is enhanced, the concentration of pollutants in the tunnel is timely controlled, and the running safety of the vehicle 9 and the health of personnel are ensured.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (8)
1. A shallow city underpass tunnel ventilation system which characterized in that: comprising the following steps:
shafts, which are arranged at two sides of the tunnel;
the fan machine room (4), the fan machine room (4) is connected with the lower end of the shaft and the lower side part of the tunnel, and a fan (6) is arranged in the fan machine room (4);
-a natural ventilation opening (10), said natural ventilation opening (10) being arranged at the top of the tunnel.
2. The shallow urban underpass ventilation system of claim 1, wherein: the vertical shaft comprises a rain cover (1), an air port filter screen (2) and an air shaft channel (3), wherein the air port filter screen (2) is arranged at the top end of the air shaft channel (3), and the rain cover (1) is arranged right above the air port filter screen (2).
3. The shallow urban underpass ventilation system of claim 1, wherein: the bottom of the fan machine room (4) is provided with a drainage groove (5), and the drainage groove (5) is connected with a drainage system in the tunnel.
4. The shallow urban underpass ventilation system of claim 1, wherein: the fan machine room (4) is connected with the lower side part of the tunnel through a louver air port (7), and a filter screen is arranged on the louver air port (7).
5. The shallow urban underpass ventilation system of claim 1, wherein: the top in the tunnel is provided with a jet fan (8), and the air outlet of the jet fan (8) faces to a natural ventilation opening (10).
6. The shallow urban underpass ventilation system of claim 4, wherein: the direction of the shutter air port (7) is the direction which is obliquely upwards from the edge of the tunnel to the center of the tunnel, and the height of the shutter air port (7) is consistent with the height of an exhaust pipe at the tail of a running vehicle (9) in the tunnel.
7. The shallow urban underpass ventilation system of claim 2, wherein: the inner wall of the wind shaft channel (3) adopts heat absorbing materials.
8. The shallow urban underpass ventilation system of claim 1, wherein: the vertical shaft, the fan machine room (4) and the natural ventilation opening (10) are all provided with a plurality of groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321659909.9U CN219974546U (en) | 2023-06-28 | 2023-06-28 | Tunnel ventilation system is worn under shallow city |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321659909.9U CN219974546U (en) | 2023-06-28 | 2023-06-28 | Tunnel ventilation system is worn under shallow city |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219974546U true CN219974546U (en) | 2023-11-07 |
Family
ID=88594149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321659909.9U Active CN219974546U (en) | 2023-06-28 | 2023-06-28 | Tunnel ventilation system is worn under shallow city |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219974546U (en) |
-
2023
- 2023-06-28 CN CN202321659909.9U patent/CN219974546U/en active Active
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