CN217813568U - Ventilation and smoke exhaust duct capable of reducing limitation of tunnel section size - Google Patents
Ventilation and smoke exhaust duct capable of reducing limitation of tunnel section size Download PDFInfo
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- CN217813568U CN217813568U CN202221778592.6U CN202221778592U CN217813568U CN 217813568 U CN217813568 U CN 217813568U CN 202221778592 U CN202221778592 U CN 202221778592U CN 217813568 U CN217813568 U CN 217813568U
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Abstract
The utility model discloses a reduce ventilation of tunnel section size limited, wind channel of discharging fume, including civil engineering wind channel main part, civil engineering wind channel main part bottom is equipped with the opening, and electronic smoke exhaust fire damper an and tripe wind gap are installed to the opening part, and electronic smoke exhaust fire damper an is located tripe wind gap below, and civil engineering wind channel main part one side is installed the oral area of airing exhaust, and the oral area bottom of airing exhaust communicates with civil engineering wind channel main part, and oral area internally mounted of airing exhaust has axial fan. The utility model discloses the wind channel replaces conventional metal wind pipe through the civil engineering wind channel, utilizes to do the civil engineering wind channel at the tunnel outer top, and the limited probability of tunnel section size that reduces, and then solved tunnel and peripheral a plurality of road on the ground or other underground works linking problems, and simultaneously, civil engineering wind channel main part adopts reinforced concrete structure greatly increased the life in tunnel wind channel.
Description
Technical Field
The utility model belongs to the technical field of underground traffic engineering, a ventilation, the wind channel of discharging fume that reduce tunnel section size and limit is related to.
Background
With the development of economy, the traffic flow of cities is increased, the ground traffic engineering can not meet the requirements, and a large amount of underground traffic engineering needs to be built for relieving traffic jam and developing underground space. At present, the conventional metal air duct is usually installed in a tunnel in the existing ventilation and smoke prevention and discharge system for underground traffic engineering, but the conventional metal air duct has many problems.
For example, the use of conventional metal ductwork as a ventilation and smoke evacuation system for tunnels often results in a limited cross-sectional dimension of the tunnel. When the tunnel needs to avoid other underground pipelines or is limited by the elevation of an overground pavement, the depth of soil covering, a longitudinal slope of a road in the tunnel and other accessory facilities, if the section size of the tunnel is reduced, the overhaul space and the minimum lane clear height in the tunnel cannot be ensured; if guarantee to overhaul space and minimum lane clear height in the tunnel, just need increase tunnel section size, this will lead to the cost increase again, can make tunnel and peripheral a plurality of ground roads or other underground works link up and tunnel slope adjustment difficulty, can make the unable normal construction of tunnel under the special operating mode environment even. Meanwhile, in the process of installing the conventional metal air pipe in the tunnel, the phenomenon of putting up the conventional metal air pipe and facilities such as traffic monitoring, illumination and cables in the tunnel can occur, construction and management are affected, the design service life of the conventional metal air pipe is short, and the conventional metal air pipe is easy to rust, difficult to maintain and needs frequent repair and replacement.
Therefore, in order to solve the problem that the conventional metal air pipe is adopted to cause the limitation of the section size of the tunnel and the short service life and difficult maintenance of the conventional metal air pipe, a novel ventilation and smoke exhaust air duct is urgently needed to be designed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a reduce the limited ventilation of tunnel section size, the wind channel of discharging fume, solved conventional metal tuber pipe and can lead to the limited and short problem of service life of tunnel section size.
The utility model discloses the technical scheme who adopts is, including setting up the civil engineering wind channel main part at the tunnel outer top, civil engineering wind channel main part bottom is equipped with the opening, and electronic smoke exhaust fire damper an and tripe wind gap are installed to the opening part, and electronic smoke exhaust fire damper an is located tripe wind gap below, and civil engineering wind channel main part one side is installed the oral area of airing exhaust, and the oral area bottom and civil engineering wind channel main part intercommunication of airing exhaust have axial fan to air exhaust oral area internally mounted.
The utility model discloses a characteristics still lie in:
the air exhaust opening is vertically upward, a division plate is arranged at the joint of the air exhaust opening and the civil air duct main body, the division plate is arranged inside the air exhaust opening, the side surface of the top of the air exhaust opening is provided with an air exhaust opening, a plurality of air exhaust openings are arranged along the trend of the civil air duct main body, and the spacing distance between the adjacent air exhaust openings is 200-400 meters.
The air outlet on the top side of the air outlet is provided with a rainproof shutter air port.
The interlayer plate is vertically and tightly connected with the inner wall of the air exhaust opening, an opening is formed in the interlayer plate, and the axial flow fan is correspondingly installed at the opening of the interlayer plate.
The opening of interlayer board is no less than two, still is provided with a plurality of maintenance passageways that link up on the interlayer.
An electric smoke discharge fire prevention valve b is installed at the air inlet of the axial flow fan, and a check valve is installed at the air outlet of the axial flow fan.
The axial flow fan is a double-speed smoke exhaust fan.
A plurality of civil engineering wind channel main part bottom opening is equipped with along its trend, and adjacent two opening part intervals are no less than 200 meters.
The beneficial effects of the utility model are that:
the utility model reduces the probability of limited section size of the tunnel by arranging the civil air duct at the outer top of the tunnel, thereby solving the problems of difficult connection between the tunnel and a plurality of peripheral overground roads or other underground engineering and difficult adjustment of the gradient of the tunnel; the civil air duct is used for replacing a conventional metal air duct, so that underground pipelines outside the tunnel are effectively avoided, the buried depth of the tunnel is reduced, and the phenomenon of framing with facilities such as traffic monitoring, illumination and cables in the tunnel is avoided; the side surface of the civil air duct main body is provided with a plurality of air exhaust openings, so that the ventilation and smoke exhaust effects in the tunnel are improved; the civil engineering wind channel adopts reinforced concrete structure and has improved wind channel life greatly.
Drawings
Fig. 1 is a schematic structural view of a ventilation and smoke exhaust duct for reducing the limitation of the section size of a tunnel according to the present invention;
fig. 2 is a sectional view of an air outlet of a ventilation and smoke exhaust duct for reducing the limitation of the section size of a tunnel.
In the figure, 1, a louver air port, 2, an electric smoke discharge fire damper, 3, a civil engineering air duct main body, 4, an axial flow fan, 5, a check valve, 6, a rainproof louver air port, 7, a cover plate, 8, an air exhaust port, 9, an overhaul cover plate,
201. electric smoke-discharging fire-resisting damper a,202. Electric smoke-discharging fire-resisting damper b.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a reduce limited ventilation of tunnel section size, the wind channel of discharging fume, as shown in figure 1 and figure 2, including setting up in the civil engineering wind channel main part 3 at tunnel outer top, 3 bottoms in civil engineering wind channel main part are equipped with the opening, and electronic smoke exhaust fire damper a201 and tripe wind gap 1 are installed to the opening part, and electronic smoke exhaust fire damper a201 is located tripe wind gap 1 below, and 3 one sides in civil engineering wind channel main part are installed and are aired exhaust oral area 8, and 8 internally mounted in the oral area of airing exhaust have axial fan 4 with 3 intercommunications in civil engineering wind channel main part 8 bottoms in the oral area of airing exhaust.
The air exhaust opening 8 is vertically upward, the interlayer plate is arranged inside the air exhaust opening 8, the cover plate 7 is arranged at the top of the air exhaust opening 8, the air exhaust opening is formed in the side face of the top of the air exhaust opening 8, the air exhaust openings 8 are arranged along the trend of the civil air duct main body 3, and the interval distance between the adjacent air exhaust openings 8 is 200-400 meters.
Rain-proof tripe wind gap 6 is installed to air outlet department, and rain-proof tripe wind gap 6 is the rain-proof tripe wind gap of steel, and apron 7 is the prefabricated concrete apron of dismantling.
The interlayer plate is vertically and tightly connected with the inner wall of the air exhaust opening part 8, an opening is arranged on the interlayer plate, and the axial flow fan 4 is correspondingly arranged at the opening of the interlayer plate.
The number of the openings of the interlayer plate is not less than two, and the interlayer is also provided with a plurality of through maintenance channels 9.
An electric smoke discharge fire damper b202 is installed at the air inlet of the axial flow fan 4, and a check valve 5 is installed at the air outlet of the axial flow fan 4.
The axial flow fan 4 is a double-speed smoke exhaust fan.
A plurality of civil air duct main body 3 bottom openings are arranged along the trend, and the interval of two adjacent openings is no less than 200 meters.
The civil engineering wind channel main part 3 is reinforced concrete material.
The utility model relates to a reduce limited ventilation of tunnel section size, the effect of essential element in the wind channel of discharging fume respectively as follows:
civil engineering wind channel main part 3: the civil engineering air duct main body 3 is made at the top outside the tunnel, the section size of the tunnel is reduced, and the elevation of the inner bottom of the tunnel is adjusted under the conditions of meeting the longitudinal slope requirement of the road in the tunnel, the minimum lane clear height and arranging drainage facilities, so that the civil engineering air duct main body is connected with a plurality of other peripheral underground engineering, and the purpose of engineering feasibility is achieved. The side surface of the civil air duct main body 3 is provided with a plurality of air exhaust openings 8, so that the ventilation and smoke exhaust effects in the tunnel are improved; the civil air duct main body 3 arranged outside the tunnel saves the height of the whole section of the tunnel, avoids the crossing of pipelines such as cables, traffic monitoring and lighting in the tunnel caused by the installation of air ducts, solves the problem that the appearance is influenced by more pipeline installation in the tunnel, and achieves the purposes of ventilation, smoke exhaust and beauty;
electric smoke-discharging fire-proof valve 2: the electric smoke-discharging fire-resisting valve comprises an electric smoke-discharging fire-resisting valve a201 and an electric smoke-discharging fire-resisting valve b202 which are respectively arranged at the louver air port 1 and the lower part 4 of the axial flow fan and are used for fusing and closing when the temperature reaches 250 ℃, manually closing, closing a 24V electric signal, electrically resetting, manually resetting, outputting an on-off signal and achieving the effect of automatically controlling and preventing fire;
the axial flow fan 4: the axial flow fan 4 is a double-speed smoke exhaust fan, when smoke flows through the axial flow fan, the axial flow fan can continuously and normally operate for not less than 1 hour at 250 ℃, and under the normal working condition, the axial flow fan determines the operation speed and the number of the axial flow fan according to data of detectors in the tunnel. When a fire disaster occurs in the channel, the control center opens the corresponding smoke exhaust subarea fan according to the position of the fire disaster, and closes the other subarea fans to ensure that the smoke of the fire disaster does not spread to other parts. The fan operation conditions under different working conditions are set, so that the requirements of ventilation and smoke exhaust are met, and the purposes of energy conservation and environmental protection are achieved;
a louver opening 1: tripe wind gap 1 is installed in 3 bottoms of civil engineering wind channel main part and tunnel inner channel UNICOM, and air current or flue gas get into the civil engineering wind channel main part 3 that is on a parallel with the tunnel line and sets up in the top through tripe wind gap 1 and the electronic fire damper that discharges fume 2 that the tunnel top set up.
Check valve 5: the check valve 5 functions to protect the blower.
The utility model relates to a reduce limited ventilation of tunnel section size, the wind channel of discharging fume, the theory of operation as follows:
install civil engineering wind channel main part 3 in tunnel top, civil engineering wind channel main part 3 is along being on a parallel with tunnel installation along the line and being located the tunnel both sides, 3 bottoms in civil engineering wind channel main part set up the opening, install electronic smoke exhaust fire damper a201 and tripe wind gap 1 in 3 bottoms in-opening parts in civil engineering wind channel main part, electronic smoke exhaust fire damper a201 is installed and is close to the tunnel top and be located tripe wind gap 1 below, offer air exhaust oral area 8 in 3 one side of keeping away from the tunnel center in civil engineering wind channel main part, 8 vertical upwards setings of air exhaust oral area and perpendicular with civil engineering wind channel main part 3, air exhaust oral area 8 includes axial fan 4, axial fan 4 is installed inside 8 air exhaust oral area, electric smoke exhaust fire damper b202 is installed to axial fan 4 air intake department, 8 top installation apron 7 in air exhaust oral area, 8 top side air exhaust oral area department installs rain-proof tripe wind gap 6.
The length of each smoke exhaust subarea in the tunnel is about 200m, the ventilation system adopts a mode of combining with a fire smoke exhaust system, one to two smoke exhaust subareas share one air exhaust opening part 8, and two axial flow fans 4 are arranged in the air exhaust opening part 8 to exhaust smoke. When the tunnel starts to operate a ventilation system or a smoke exhaust system in normal times, a transverse air exhaust or smoke exhaust mode is adopted, air flow or smoke passes through a louver air port 1 and an electric smoke exhaust fire prevention valve 2 which are arranged at the top of the tunnel, enters a civil air duct main body 3 which is parallel to the line of the tunnel and is arranged at the top, converges into the civil air duct main body 3 which is perpendicular to the line of the tunnel and is connected with an air exhaust port 8, and finally is exhausted outdoors through the electric smoke exhaust fire prevention valve 2, an axial flow fan 4, a check valve 5 and a steel rainproof louver air port 6 of the air exhaust port 8 in sequence.
Claims (8)
1. The utility model provides a reduce limited ventilation of tunnel section size, wind channel of discharging fume, its characterized in that, including setting up in civil engineering wind channel main part (3) at the tunnel outer top, civil engineering wind channel main part (3) bottom is equipped with the opening, electronic smoke exhaust fire damper a (201) and tripe wind gap (1) are installed to the opening part of civil engineering wind channel main part (3) bottom, electronic smoke exhaust fire damper a (201) are located tripe wind gap (1) below, exhaust oral area (8) are installed to civil engineering wind channel main part (3) one side, exhaust oral area (8) bottom and civil engineering wind channel main part (3) intercommunication, exhaust oral area (8) internally mounted has axial fan (4).
2. The ventilation and smoke exhaust duct for reducing the limitation of the section size of the tunnel according to claim 1, wherein the air exhaust port (8) is vertically upward, a partition plate is installed inside the air exhaust port (8), a cover plate (7) is installed on the top of the air exhaust port (8), an air exhaust port is opened on the side surface of the top of the air exhaust port (8), a plurality of air exhaust ports (8) are arranged along the trend of the civil air duct main body (3), and the interval distance between the adjacent air exhaust ports (8) is 200-400 m.
3. The ventilation and smoke exhaust duct for reducing the restriction of the tunnel section size as claimed in claim 2, wherein a rain-proof louver opening (6) is installed at the top side air outlet of said air outlet portion (8).
4. The ventilation and smoke exhaust duct for reducing the limitation of the section size of the tunnel according to claim 2, wherein the division plate is vertically and tightly connected with the inner wall of the air exhaust opening (8), the division plate is provided with an opening, and the axial flow fan (4) is correspondingly arranged at the opening of the division plate.
5. A ventilation and smoke exhaust duct for reducing the restriction of the cross-sectional dimension of a tunnel according to claim 4, wherein the number of openings of said division plate is not less than two, and said division plate is further provided with a plurality of through-going access channels (9).
6. A ventilation and smoke exhaust duct for reducing the limitation of the section size of the tunnel according to claim 1 or 4, characterized in that an electric smoke exhaust fire valve b (202) is installed at the air inlet of the axial flow fan (4), and a check valve (5) is installed at the air outlet of the axial flow fan (4).
7. A ventilation and smoke exhaust duct for reducing the tunnel section size restrictions according to claim 6, characterized in that said axial fan (4) is a two-speed smoke exhaust fan.
8. The ventilation and smoke exhaust duct for reducing the limitation of the section size of the tunnel according to claim 1, characterized in that a plurality of openings are arranged at the bottom of the civil engineering duct main body (3) along the trend, and the interval between two adjacent openings is not less than 200 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221778592.6U CN217813568U (en) | 2022-07-11 | 2022-07-11 | Ventilation and smoke exhaust duct capable of reducing limitation of tunnel section size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221778592.6U CN217813568U (en) | 2022-07-11 | 2022-07-11 | Ventilation and smoke exhaust duct capable of reducing limitation of tunnel section size |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217813568U true CN217813568U (en) | 2022-11-15 |
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ID=83964662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221778592.6U Active CN217813568U (en) | 2022-07-11 | 2022-07-11 | Ventilation and smoke exhaust duct capable of reducing limitation of tunnel section size |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217813568U (en) |
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2022
- 2022-07-11 CN CN202221778592.6U patent/CN217813568U/en active Active
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