CN111622797A - Tunnel smoke exhaust system and tunnel - Google Patents
Tunnel smoke exhaust system and tunnel Download PDFInfo
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- CN111622797A CN111622797A CN202010522822.1A CN202010522822A CN111622797A CN 111622797 A CN111622797 A CN 111622797A CN 202010522822 A CN202010522822 A CN 202010522822A CN 111622797 A CN111622797 A CN 111622797A
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- 239000000779 smoke Substances 0.000 title claims abstract description 400
- 238000005192 partition Methods 0.000 claims abstract description 61
- 239000003517 fume Substances 0.000 claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims 2
- 238000007599 discharging Methods 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 13
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012876 topography Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/003—Ventilation of traffic tunnels
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The embodiment of the application provides a tunnel system and tunnel of discharging fume, wherein, the system of discharging fume includes: the smoke exhaust channel is arranged in the tunnel and extends along the length direction of the tunnel; the smoke exhaust channel is separated from the driving channel of the tunnel by a partition wall; the smoke outlet is formed on the partition wall; the internal smoke exhaust device is arranged at the smoke exhaust port; when the smoke exhaust system is in a non-smoke exhaust working condition, the internal smoke exhaust device is in a stop state to seal the smoke exhaust port; when the smoke exhaust system is in a smoke exhaust working condition, the internal smoke exhaust device is in a working state so as to open the smoke exhaust port to exhaust smoke to the smoke exhaust tunnel; the end smoke exhaust devices are arranged at two ends of the smoke exhaust channel; when the smoke exhaust system is in a non-smoke exhaust working condition, the end smoke exhaust device is in a closed state; when the smoke exhaust system is in a smoke exhaust working condition, the end smoke exhaust device is in a working state to exhaust smoke of the smoke exhaust channel. The tunnel system of discharging fume and tunnel that this application embodiment provided can improve the speed of discharging fume and smoke exhaust effect.
Description
Technical Field
The application relates to a tunnel technique of discharging fume, especially relates to a tunnel system and tunnel of discharging fume.
Background
The tunnel is a building which is arranged underground, in mountainous areas and underwater and is used for automobiles, trains or urban rail vehicles to pass through. The tunnel is usually provided with a smoke exhaust system which is suitable for exhausting the smoke inside the tunnel as soon as possible when a fire breaks out in the tunnel. The system of discharging fume includes: the tunnel comprises a smoke exhaust channel and a plurality of smoke exhaust ports, wherein the smoke exhaust ports extend along the length direction of the tunnel, the smoke exhaust ports are communicated with the smoke exhaust channel, and smoke in the tunnel enters the smoke exhaust channel through the smoke exhaust ports and is exhausted from an air shaft on the smoke exhaust channel. To the topography environment of easily being under construction, can correspond at the tunnel intermediate position and set up artificial island or middle air shaft and be used for transversely discharging fume, but to the topography environment of difficult construction, can't correspond at the tunnel intermediate position and set up artificial island or middle air shaft, can only set up smoke exhaust fan at smoke exhaust passage's both ends.
When a fire occurs in the middle of the tunnel, the smoke exhaust effect is poor. Specifically, the method comprises the following steps:
(1) the smoke exhaust ports are large in number, so that the air leakage is large, and the attenuation is large particularly in the process of remote smoke exhaust, so that the smoke exhaust effect is poor;
(2) the smoke exhaust air volume of each smoke exhaust port is not uniform, and the air volume of each smoke exhaust port is difficult to balance;
(3) the smoke exhaust fans with large pressure heads and high power are required to be arranged at the two ends of the smoke exhaust channel, so that the performance requirements on the smoke exhaust fans are high, and the equipment is difficult to select;
(4) the higher the power of the smoke exhaust fan is, the slower the starting speed is, so that the smoke exhaust has hysteresis; moreover, as the smoke exhaust channel is long, the smoke exhaust response also has the problem of delay, so that smoke at a fire point can not be exhausted in a delayed way;
(5) the longer smoke exhaust channel can also lead to larger smoke exhaust resistance and limited smoke exhaust effect.
Disclosure of Invention
In order to solve one of the above technical drawbacks, an embodiment of the present application provides a tunnel smoke evacuation system and a tunnel.
An embodiment of a first aspect of the present application provides a tunnel system of discharging fume, including:
the smoke exhaust channel is arranged in the tunnel and extends along the length direction of the tunnel; the smoke exhaust channel is separated from the driving channel of the tunnel by a partition wall;
the smoke outlet is formed in the partition wall; when the smoke exhaust port is opened, the travelling crane channel is communicated with the smoke exhaust channel;
the internal smoke exhaust device is arranged at the smoke exhaust port; when the smoke exhaust system is in a non-smoke exhaust working condition, the internal smoke exhaust device is in a stop state to seal the smoke exhaust port; when the smoke exhaust system is in a smoke exhaust working condition, the internal smoke exhaust device is in a working state so as to open the smoke exhaust port to exhaust smoke to the smoke exhaust tunnel;
the end smoke exhaust devices are arranged at two ends of the smoke exhaust channel; when the smoke exhaust system is in a non-smoke exhaust working condition, the end smoke exhaust device is in a closed state; when the smoke exhaust system is in a smoke exhaust working condition, the end smoke exhaust device is in a working state to exhaust smoke of the smoke exhaust channel.
An embodiment of a second aspect of the present application provides a tunnel, including: the tunnel smoke exhaust system is described above.
According to the technical scheme provided by the embodiment of the application, the smoke exhaust channel is arranged in the tunnel and extends along the length direction of the tunnel, and end smoke exhaust devices are arranged at two ends of the smoke exhaust channel; when the tunnel is normally used, and the smoke exhaust system is in a non-smoke exhaust working condition, the internal smoke exhaust device is in a stop state to seal the smoke exhaust port; when a fire breaks out in the tunnel, the smoke exhaust system is in the working condition of discharging fume, and inside fume extractor is in operating condition in order to open the exhaust port and discharge fume to the tunnel of discharging fume, and tip fume extractor start work discharges the smog in the tunnel of discharging fume to the atmosphere, can improve the effect of discharging fume in the tunnel.
Specifically, when the internal smoke exhaust device near the ignition point is started, smoke in the travelling channel can be quickly exhausted into the smoke exhaust channel, the smoke in the travelling channel is reduced, the safety of personnel is improved, and the field of view in the tunnel is clear, so that fire extinguishment and personnel evacuation are facilitated; the requirement on the end smoke exhaust device is reduced, the universal smoke exhaust device is adopted, smoke in the smoke exhaust channel 1 can be exhausted as soon as possible, and the smoke exhaust speed and the smoke exhaust effect are improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is an overall schematic view of a tunnel smoke evacuation system applied to a tunnel according to an embodiment of the present application;
fig. 2 is a cross-sectional view of a tunnel according to a second embodiment of the present application;
fig. 3 is a schematic structural view of a tunnel smoke exhaust system provided in the second embodiment of the present application, in which an internal smoke exhaust fan and an internal smoke exhaust valve are disposed at a smoke exhaust port;
fig. 4 is a cross-sectional view of a tunnel provided in the third embodiment of the present application;
fig. 5 is a schematic structural view of a tunnel smoke exhaust system provided in the third embodiment of the present application, in which an internal smoke exhaust fan and an internal smoke exhaust valve are disposed at a smoke exhaust port;
FIG. 6 is a cross-sectional view of another tunnel provided in the third embodiment of the present application;
FIG. 7 is a cross-sectional view of a tunnel according to the fourth embodiment of the present invention;
fig. 8 is another cross-sectional view of a tunnel according to the fourth embodiment of the present invention.
Reference numerals:
1-a smoke exhaust channel;
2-a smoke outlet;
3-internal smoke evacuation; 31-internal smoke exhaust fan; 32-internal smoke exhaust valves;
4-end fume extractor; 41-electric air valve; 42-a main smoke exhaust fan; 43-air shaft;
5, tunneling; 51-partition wall; 52-a traffic channel; 53-air supply channel.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Example one
The embodiment provides a tunnel system of discharging fume, can be applied to tunnels such as mountain area, underground, seabed, is applicable to the tunnel of multiple length, is particularly useful for long tunnel and receives the tunnel that topography influence can't set up artificial island or middle wind shaft in the middle of the tunnel. The long tunnel is a tunnel with a length of 5 km or more. The tunnel may be a road tunnel, a railway tunnel, or an urban rail vehicle tunnel, and the embodiment only takes the road tunnel as an example to describe the smoke evacuation system in detail, and a person skilled in the art may directly apply the technical scheme provided in the embodiment to other types of tunnels, or apply the technical scheme provided in the embodiment to other types of tunnels after adaptive modification.
Fig. 1 is an overall schematic view of a tunnel smoke evacuation system applied to a tunnel according to an embodiment of the present application. As shown in fig. 1, the present embodiment provides a tunnel smoke evacuation system, including: a smoke exhaust channel 1, a smoke exhaust port 2, an inner smoke exhaust device 3 and an end smoke exhaust device 4.
Wherein, smoke exhausting channel 1 sets up in tunnel 5, extends along tunnel 5's length direction, and tunnel 5 is worn out at the both ends of smoke exhausting channel 1. The tunnel 5 is provided with a partition wall which divides the space in the tunnel 5 into a smoke exhaust passage 1 and a traveling passage. The partition wall may be a civil structure extending in a horizontal direction, extending from one end to the other end of the tunnel sidewall; alternatively, the partition walls may also be civil structures extending in the vertical direction, extending from the top end to the bottom end of the tunnel; alternatively, the partition walls may be an angular civil structure, and an area enclosed between the partition walls and the tunnel wall serves as the smoke evacuation duct 1.
The smoke exhaust ports 2 are arranged on the partition wall, and a plurality of smoke exhaust ports 2 can be arranged on the partition wall at intervals. When the smoke exhaust port 2 is opened, the travelling crane channel is communicated with the smoke exhaust channel 1 for gas exchange; when the smoke exhaust port 2 is closed, the travelling channel and the smoke exhaust channel 1 are blocked, and gas exchange cannot be carried out.
The inner smoke exhaust device 3 is arranged at the smoke exhaust port 2 and has better sealing performance with the smoke exhaust port 2. Under normal conditions, the smoke exhaust system is in a non-smoke exhaust working condition, the internal smoke exhaust device 3 is in a stop state, and the smoke exhaust port 2 is closed. When a fire disaster occurs in the tunnel, the smoke exhaust system is in a smoke exhaust working condition, the internal smoke exhaust device 3 is in a working state, the smoke exhaust port 2 is opened, smoke is exhausted into the smoke exhaust channel 1, and smoke generated at a fire point is exhausted into the smoke exhaust channel 1 as soon as possible.
According to the technical scheme provided by the embodiment, the smoke exhaust channel is arranged in the tunnel and extends along the length direction of the tunnel, and end smoke exhaust devices are arranged at two ends of the smoke exhaust channel; when the tunnel is normally used, and the smoke exhaust system is in a non-smoke exhaust working condition, the internal smoke exhaust device is in a stop state to seal the smoke exhaust port; when a fire breaks out in the tunnel, the smoke exhaust system is in the working condition of discharging fume, and inside fume extractor is in operating condition in order to open the exhaust port and discharge fume to the tunnel of discharging fume, and tip fume extractor start work discharges the smog in the tunnel of discharging fume to the atmosphere, can improve the effect of discharging fume in the tunnel.
Specifically, when the internal smoke exhaust device near the ignition point is started, smoke in the travelling channel can be quickly exhausted into the smoke exhaust channel, the smoke in the travelling channel is reduced, the safety of personnel is improved, and the field of view in the tunnel is clear, so that fire extinguishment and personnel evacuation are facilitated; the requirement on the end smoke exhaust device is reduced, the universal smoke exhaust device is adopted, smoke in the smoke exhaust channel 1 can be exhausted as soon as possible, and the smoke exhaust speed and the smoke exhaust effect are improved.
For the end fume extractor 4, the technical means commonly used in the art can be adopted, and the scheme provided by the embodiment can also be adopted: as shown in fig. 1, the end-part smoke evacuation device 4 includes: the electric air valve 41, the main smoke exhaust fan 42 and the air shaft 43 are arranged on the smoke exhaust channel 1 in sequence, and the air shaft 43 is positioned at the outermost end.
When the smoke exhaust system is in a non-smoke exhaust working condition, the electric air valve 41 is in a closed state, and the smoke exhaust channel 1 is closed. When the smoke exhaust system is in a smoke exhaust working condition, the electric air valve 41 is opened, and the main smoke exhaust fan 42 is started to exhaust smoke in the smoke exhaust channel 1 to the air shaft 43 and then to the atmosphere. The electric damper 41 may be any one commonly used in the art. The main exhaust fan 42 may be any one commonly used in the art, and its power may be selected according to the length of the tunnel and the diameter of the exhaust passage 1.
The main smoke exhaust fan 42 and the electric air valve 41 can be opened and closed in a linkage manner, that is: both are started and stopped simultaneously.
The internal smoke exhaust device 3 and the end smoke exhaust device 4 are all in hard interlocking with an automatic fire alarm system arranged in the tunnel, and when the automatic fire alarm system sends out a piston signal, the internal smoke exhaust device 3 and the end smoke exhaust device 4 are immediately started to exhaust smoke. The reaction of the internal smoke exhaust device 3 is fast, when the residual pressure of the main smoke exhaust fan 42 does not reach the smoke outlet 2 to form exhaust, the internal smoke exhaust device 3 is started in time, smoke in the driving channel is exhausted into the smoke exhaust channel first, and the effect of no delay of smoke exhaust is achieved. Moreover, the main smoke exhaust fan 42 does not need too high pressure to exhaust smoke, and only needs to discharge smoke in the smoke exhaust channel, so that the requirements on performance parameters and equipment power consumption can be reduced.
The specifications of the internal smoke exhaust devices 3 arranged at the smoke outlets 2 are consistent, and the smoke exhaust air quantity and other parameters are kept consistent, so that the air quantity of each smoke outlet 2 is uniform, and the problem of smoke backflow caused by small air quantity of a certain smoke outlet is avoided.
Example two
The present embodiment provides a specific implementation manner of a tunnel smoke exhaust system on the basis of the above embodiments.
Fig. 2 is a cross-sectional view of a tunnel provided in the second embodiment of the present application, and fig. 3 is a schematic structural view of a smoke exhaust port in a tunnel smoke exhaust system provided in the second embodiment of the present application, where the smoke exhaust port is provided with an internal smoke exhaust fan and an internal smoke exhaust valve. As shown in fig. 2, the present embodiment provides a tunnel 5 having a partition wall 51 disposed above the tunnel, the partition wall 51 extending in a horizontal direction and being formed between both side walls of the tunnel. The space below the partition 51 is a traffic channel 52, and the space above the partition 51 is a smoke evacuation channel 1.
A plurality of smoke outlets 2 are formed in the partition wall 51, and the smoke outlets 2 are arranged at intervals along the length direction of the tunnel. When a civil partition wall structure is built, holes are reserved to form exhaust ports 2, and interfaces connected with the internal smoke exhaust devices 3 can be reserved on the civil structure. Fireproof high-temperature-resistant gaskets are adopted between the internal structures of the internal smoke exhaust device 3 and between each structure and the reserved holes for compaction and sealing, so that smoke leakage during smoke exhaust is ensured. The traffic lane 52 provided by the present embodiment may be a single lane, a double lane, or more than three lanes. When the driving passage 52 is a double lane or three or more lanes, a row of smoke discharge ports 2 may be formed on the partition wall 51 above, or two rows of smoke discharge ports 2 or three or more rows of smoke discharge ports 2 may be formed on the partition wall 51.
The present embodiment provides an implementation of the internal smoke evacuation device 3: as shown in fig. 2 and 3, the inner smoke evacuation device 3 may include: an internal smoke exhaust fan 31 and an internal smoke exhaust valve 32.
The plane of the smoke outlet 2 is parallel to the partition wall 51. The internal smoke exhaust valve 32 is arranged in the smoke exhaust port 2, and a sealing structure is arranged between the internal smoke exhaust valve and the side wall of the smoke exhaust port 2. When the internal smoke exhaust valve 32 is in a closed state, the smoke exhaust port 2 is closed to block the gas circulation between the travelling crane channel 52 and the smoke exhaust channel 1 at the two sides of the smoke exhaust port 2; the travel path 52 is put in communication with the smoke evacuation path 1 when the internal smoke evacuation valve 32 is in an open state.
The internal smoke exhaust valve 32 may be an air valve commonly used in the art, such as an electric air valve. The embodiment provides a specific way: the internal smoke exhaust valve 32 includes: a frame, a blade, and a drive mechanism. Wherein, the frame is fixed in the smoke outlet 2 in a sealing way, and the plane of the frame is parallel to the plane of the smoke outlet 2. The blade sets up in the region that the frame encloses, and the blade rotates with the frame and is connected. The number of the blades is at least two, each blade can rotate relative to the frame to be parallel to the plane of the frame, the adjacent blades are in butt joint, no gap exists between the adjacent blades and between the blades and the frame, and the air outlet 2 is sealed and does not leak air. The blade can also be rotated open relative to the frame, and is at a predetermined angle with the plane of the frame, and the predetermined angle can be an acute angle or a right angle. It can be understood that when the preset angle is a right angle, the smoke exhausting speed is the fastest, and the effect is the best.
The driving mechanism is arranged on the frame and used for driving the blades to rotate. The driving mechanism may include a driving motor and a transmission executing mechanism, the transmission executing mechanism may be composed of a connecting rod, a slider, a gear, and the like, the driving motor drives the transmission executing mechanism to move so as to drive the blade to rotate, and a specific implementation manner of the driving mechanism may be set by a technician, which is not limited in this embodiment.
Alternatively, the internal smoke exhaust valve 32 may be an electrically operated smoke exhaust fire damper, such as: on the basis of the scheme, a temperature sensor is additionally arranged and is arranged on the frame or the blade and used for detecting the temperature in the travelling crane channel. The internal smoke exhaust valve 32 is closed when the temperature exceeds a preset value. Specifically, the controller can be electrically connected with the temperature sensor and the driving motor respectively, the controller acquires a temperature signal detected by the temperature sensor, the controller judges the temperature signal, and when the temperature signal is greater than a preset value, the driving motor is controlled to act, so that the driving blades are driven to rotate to a closed state, and the smoke outlet 2 is closed.
The inner smoke exhaust fan 31 is fixedly arranged on the dividing wall 51 and is opposite to the smoke exhaust port 2. The air outlet direction of the inner smoke exhaust fan 31 faces the smoke exhaust passage 1. Specifically, the rotation center line of the internal smoke exhaust fan 31 can be aligned with the center of the smoke exhaust port 2, so that the smoke flowing is accelerated to the maximum speed, and the smoke exhaust effect is improved.
The internal smoke exhaust fan 31 and the internal smoke exhaust valve 32 can be opened and closed in a linkage manner. When the smoke exhaust system enters a smoke exhaust working condition, the internal smoke exhaust fan 31 and the internal smoke exhaust valve 32 are synchronously started, so that the smoke exhaust speed is increased; when the smoke exhaust system enters a non-smoke exhaust condition, the internal smoke exhaust fan 31 and the internal smoke exhaust valve 32 are synchronously closed.
For the solution shown in fig. 2, the internal smoke exhaust fan 31 may be located on one side of the internal smoke exhaust valve 32 facing the traffic channel 52, and the center line of the internal smoke exhaust fan 31 is parallel to the vertical direction, which is convenient for daily maintenance.
EXAMPLE III
The embodiment provides another implementation mode of applying the smoke exhaust system in the tunnel on the basis of the technical scheme.
Fig. 4 is a cross-sectional view of a tunnel provided in the third embodiment of the present application, and fig. 5 is a schematic structural view of a smoke exhaust port in a tunnel smoke exhaust system provided in the third embodiment of the present application, where the smoke exhaust port is provided with an internal smoke exhaust fan and an internal smoke exhaust valve. As shown in fig. 4, the partition wall 51 extends in the vertical direction between the top wall and the bottom wall of the tunnel 5. The partition walls 51 are two in number and arranged side by side at the middle of the tunnel 5. Between the two partitions 51, a smoke evacuation duct 1 is formed, the left side of the partition 51 on the left being a traffic channel 52, and the right side of the partition 51 on the right being the traffic channel 52. The lane 52 may be a single lane, a dual lane, or more than three lanes. Each partition wall 51 is provided with a plurality of smoke outlets 2, the smoke outlets 2 are arranged at intervals along the length direction of the tunnel, and the plane where the smoke outlets 2 are located is parallel to the partition wall 51.
The internal smoke exhaust device 3 in this embodiment includes an internal smoke exhaust fan 31 and an internal smoke exhaust valve 32, and the specific implementation manner can refer to the above embodiments. The smoke exhaust port 2 is arranged at the upper part of the partition wall 51, the internal smoke exhaust valve 32 is arranged in the smoke exhaust port 2, the internal smoke exhaust fan 31 is positioned at one side of the internal smoke exhaust valve 32 facing the travelling crane channel 52, and the central line of the internal smoke exhaust fan 31 is parallel to the horizontal direction, so that the daily overhaul and maintenance are convenient.
The specific arrangement and operation of the internal smoke exhaust fan 31 and the internal smoke exhaust valve 32 can be found in the above embodiments.
Fig. 6 is another cross-sectional view of a tunnel according to a third embodiment of the present application. As shown in fig. 6, the present embodiment provides another implementation manner of applying the smoke evacuation system in a tunnel: a partition wall 51 is provided in the vertical direction between the top and bottom walls of the tunnel, the partition wall 51 having a smoke evacuation channel 1 on one side and a traffic channel 52 on the other side. In fig. 6, the partition 51 is located on the left side of the tunnel 5, and the left space serves as the smoke evacuation path 1 and the right space serves as the traffic path 52.
The smoke outlet 2 is arranged at the upper part of the dividing wall, and an internal smoke exhaust device 3 is arranged on the smoke outlet. The internal smoke evacuation device 3 can be implemented as described above.
Example four
The present embodiment provides another implementation manner of applying the smoke exhaust system in a tunnel on the basis of the above embodiments.
The tunnel 5 may be provided with a partition wall to form an air supply passage, and an air supply port communicating with the air supply passage is provided in the partition wall. An air supply fan may be provided at an end of the tunnel 5 for supplying clean air into the air supply passage 53.
For a long tunnel, when the smoke exhaust system is in a non-smoke exhaust working condition, air is supplied into the driving channel 52 through the air supply channel, and the effect of improving the air quality in the driving channel 52 can be achieved. When the smoke exhaust system is in the working condition of discharging fume, air is supplied into the driving channel 52 through the air supply channel, and the clean air actively flows in to drive the smoke to be discharged into the smoke exhaust channel 1 from the smoke outlet 2, so that the air quality in the driving channel 52 is further improved, the safety of personnel is ensured, the visual field is clear, and the fire extinguishing rescue and the escape of the personnel are facilitated.
Fig. 7 is a cross-sectional view of a tunnel according to the fourth embodiment of the present application. As shown in fig. 7, a partition wall 51 extending in the vertical direction is provided above the middle of the partition wall 51 extending horizontally, and divides the upper space into a left-side smoke evacuation path 1 and a right-side air blowing path 53. An air supply outlet is correspondingly arranged on the partition wall below the air supply channel 53.
Fig. 8 is another cross-sectional view of a tunnel according to the fourth embodiment of the present invention. As shown in fig. 8, two partition walls 51 extending in the vertical direction are provided in the tunnel to be distributed on both sides of the space in the tunnel. The space between the two partitions 51 serves as a traffic channel 52, the left side of the left partition 51 is a smoke evacuation channel 1, and the right side of the right partition 51 is a blowing channel 53. An air supply outlet can be correspondingly arranged on the right partition wall.
EXAMPLE five
The embodiment provides a tunnel, which comprises the tunnel smoke exhaust system provided in any one of the above contents. The tunnel may specifically be a road tunnel.
The tunnel that this embodiment provided has the same technological effect with above-mentioned tunnel exhaust system.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A tunnel smoke evacuation system, comprising:
the smoke exhaust channel is arranged in the tunnel and extends along the length direction of the tunnel; the smoke exhaust channel is separated from the driving channel of the tunnel by a partition wall;
the smoke outlet is formed in the partition wall; when the smoke exhaust port is opened, the travelling crane channel is communicated with the smoke exhaust channel;
the internal smoke exhaust device is arranged at the smoke exhaust port; when the smoke exhaust system is in a non-smoke exhaust working condition, the internal smoke exhaust device is in a stop state to seal the smoke exhaust port; when the smoke exhaust system is in a smoke exhaust working condition, the internal smoke exhaust device is in a working state so as to open the smoke exhaust port to exhaust smoke to the smoke exhaust tunnel;
the end smoke exhaust devices are arranged at two ends of the smoke exhaust channel; when the smoke exhaust system is in a non-smoke exhaust working condition, the end smoke exhaust device is in a closed state; when the smoke exhaust system is in a smoke exhaust working condition, the end smoke exhaust device is in a working state to exhaust smoke of the smoke exhaust channel.
2. The tunnel smoke evacuation system of claim 1, wherein the internal smoke evacuation device comprises: an internal smoke exhaust fan and an internal smoke exhaust valve;
the internal smoke exhaust valve is arranged at the smoke exhaust port; a sealing structure is arranged between the internal smoke exhaust valve and the side wall of the smoke exhaust port; when the internal smoke exhaust valve is in a closed state, the smoke exhaust port is closed to block the gas circulation between the travelling crane channel and the smoke exhaust channel on the two sides of the smoke exhaust port; when the internal smoke exhaust valve is in an open state, the travelling crane channel is communicated with the smoke exhaust channel;
the internal smoke exhaust fan is arranged on the dividing wall and is opposite to the smoke exhaust port; the air outlet direction of the internal smoke exhaust fan faces the smoke exhaust channel.
3. The tunnel smoke evacuation system of claim 2, wherein the internal smoke evacuation fan and the internal smoke evacuation valve are synchronously activated when the smoke evacuation system enters a smoke evacuation condition; and when the smoke exhaust system enters a non-smoke exhaust working condition, the internal smoke exhaust fan and the internal smoke exhaust valve are synchronously closed.
4. The tunnel smoke evacuation system of claim 3, wherein the internal smoke evacuation valve comprises:
the frame is fixed in the smoke exhaust port in a sealing way;
the blades are rotatably arranged in the area surrounded by the frame;
the driving mechanism is arranged on the frame and used for driving each blade to rotate to be parallel to the plane where the smoke exhaust port is located, the adjacent blades are in butt joint, no gap exists between the adjacent blades, and no gap exists between the blades and the frame; and the blades are driven to rotate to form a preset angle with the plane where the smoke outlet is located.
5. The tunnel smoke evacuation system of claim 4, wherein the internal smoke evacuation valve further comprises: a temperature sensor; the temperature sensor is arranged on the frame or the blades and used for detecting the temperature in the travelling crane channel so as to close the internal smoke exhaust valve when the temperature exceeds a preset value.
6. A tunnel smoke evacuation system according to any one of claims 2 to 5 wherein when said partition walls are horizontally extended between both side walls of the tunnel, the space below the partition walls serves as a traffic passage and the space above the partition walls serves as a smoke evacuation passage;
the plurality of smoke outlets are arranged on the partition walls at intervals along the length direction of the tunnel, and the planes of the smoke outlets are parallel to the partition walls; the inside smoke exhaust fan is located on one side, facing the travelling crane channel, of the inside smoke exhaust valve, and the center line of the inside smoke exhaust fan is parallel to the vertical direction.
7. A tunnel smoke evacuation system according to any one of claims 2 to 5 wherein when the partition wall extends in a vertical direction between the top wall and the bottom wall of the tunnel, one side space of the partition wall serves as a traffic channel and the other side space of the partition wall serves as a smoke evacuation channel;
the plurality of smoke outlets are arranged on the partition walls at intervals along the length direction of the tunnel, and the planes of the smoke outlets are parallel to the partition walls; the inside smoke exhaust fan is located on one side, facing the travelling crane channel, of the inside smoke exhaust valve, and the center line of the inside smoke exhaust fan is parallel to the horizontal direction.
8. The tunnel fume extraction system of any one of claims 2-5, wherein when the partition wall extends in a vertical direction between the top wall and the bottom wall of the tunnel; the number of the partition walls is two, the partition walls are arranged in the middle of the space in the tunnel, a smoke exhaust channel is formed in the space between the two partition walls, and the space outside the two partition walls is used as a travelling channel;
a plurality of smoke outlets are formed in each partition wall, the smoke outlets are arranged at intervals along the length direction of the tunnel, and the plane where the smoke outlets are located is parallel to the partition walls; the inside smoke exhaust fan is located on one side, facing the travelling crane channel, of the inside smoke exhaust valve, and the center line of the inside smoke exhaust fan is parallel to the horizontal direction.
9. A tunnel, comprising: a tunnel fume extraction system as claimed in any one of claims 1 to 8.
10. The tunnel of claim 9, wherein the tunnel is a highway tunnel.
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| CN202010522822.1A CN111622797A (en) | 2020-06-10 | 2020-06-10 | Tunnel smoke exhaust system and tunnel |
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| CN202010522822.1A CN111622797A (en) | 2020-06-10 | 2020-06-10 | Tunnel smoke exhaust system and tunnel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719310A (en) * | 2021-09-07 | 2021-11-30 | 江苏利丰空调科技有限公司 | Tunnel jet fan with fire centralized treatment function |
| CN114183867A (en) * | 2021-11-24 | 2022-03-15 | 中铁第五勘察设计院集团有限公司 | Air-conditioning ventilation system of subway underground station platform |
| CN114592542A (en) * | 2022-03-16 | 2022-06-07 | 重庆交通大学 | Immersed tube tunnel convenient to evenly discharge fume and personnel flee |
| CN116229659A (en) * | 2023-05-08 | 2023-06-06 | 四川省交通勘察设计研究院有限公司 | Tunnel traffic control system and traffic control method suitable for low-grade highway |
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2020
- 2020-06-10 CN CN202010522822.1A patent/CN111622797A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719310A (en) * | 2021-09-07 | 2021-11-30 | 江苏利丰空调科技有限公司 | Tunnel jet fan with fire centralized treatment function |
| CN114183867A (en) * | 2021-11-24 | 2022-03-15 | 中铁第五勘察设计院集团有限公司 | Air-conditioning ventilation system of subway underground station platform |
| CN114592542A (en) * | 2022-03-16 | 2022-06-07 | 重庆交通大学 | Immersed tube tunnel convenient to evenly discharge fume and personnel flee |
| CN114592542B (en) * | 2022-03-16 | 2024-04-19 | 重庆交通大学 | Immersed tube tunnel convenient to evenly smoke evacuation and personnel escape |
| CN116229659A (en) * | 2023-05-08 | 2023-06-06 | 四川省交通勘察设计研究院有限公司 | Tunnel traffic control system and traffic control method suitable for low-grade highway |
| CN116229659B (en) * | 2023-05-08 | 2023-09-12 | 四川省交通勘察设计研究院有限公司 | Tunnel traffic control system and traffic control method suitable for low-grade highway |
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