CN213269952U - Fire smoke exhaust system with limited tunnel interval arranged in smoke exhaust duct - Google Patents
Fire smoke exhaust system with limited tunnel interval arranged in smoke exhaust duct Download PDFInfo
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- CN213269952U CN213269952U CN202021667313.XU CN202021667313U CN213269952U CN 213269952 U CN213269952 U CN 213269952U CN 202021667313 U CN202021667313 U CN 202021667313U CN 213269952 U CN213269952 U CN 213269952U
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Abstract
The utility model relates to a smoke exhaust system is arranged in flue of discharging fume and is restricted interval conflagration in tunnel, the tunnel interval divide into between first tunnel and the second tunnel between, between first tunnel and the interval intercommunication in second tunnel, and be equipped with concentrated exhaust port in the two department of intercommunication, be equipped with concentrated exhaust-fume air valve in the concentrated exhaust port, the interval is equipped with a plurality ofly and the conventional exhaust port that discharges fume the flue intercommunication between the first tunnel interval, be equipped with conventional exhaust-fume air valve in the conventional exhaust port, the interval between the second tunnel is equipped with a plurality of jet fans that are used for accelerating inside circulation of air. The utility model discloses a set up conventional exhaust port in first tunnel interval, set up the efflux fan in second tunnel interval to and intercommunication department between first tunnel interval and second tunnel interval sets up the concentrated exhaust port, can take place the conflagration in the second tunnel interval after through concentrating the exhaust port and the flue gas discharge that conventional exhaust port will produce through concentrating exhaust port and conventional exhaust port under the effect of efflux fan, personnel, vehicle in the tunnel of being convenient for are sparse and flee.
Description
Technical Field
The utility model relates to a tunnel technical field that discharges fume especially relates to a system of discharging fume of conflagration that restricted tunnel interval was laid in wind channel of discharging fume.
Background
With the development of social economy, the urban lake bottom tunnel or river-crossing tunnel can provide a new urban traffic channel for connection among areas, and the collaborative development of each area is promoted. Because the tunnel is few to the passageway of external connection to in some tunnels, because the influence of factors such as geology, construction, the laying of exhaust port often can receive the restriction, can not lay according to ideal design demand, cause the tunnel conflagration to become very important potential safety hazard like this. A large amount of poisonous and harmful high-temperature smoke can be generated by fire in the tunnel, and the high-temperature smoke cannot be naturally discharged, so that the tunnel can be filled with the fire quickly, and great loss can be brought to life and property safety of people in the tunnel.
Disclosure of Invention
The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art, a fire smoke exhaust system between restricted tunnel is laid in the wind channel of discharging fume is provided.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a fire smoke exhaust system with a smoke exhaust duct arranged in a limited tunnel section is characterized in that the tunnel section is divided into a first tunnel section in which the smoke exhaust duct can be arranged and a second tunnel section in which the smoke exhaust duct cannot be arranged, one end of the first tunnel section is communicated with one end of the second tunnel section, a concentrated smoke exhaust port communicated with a conventional smoke exhaust duct in the first tunnel section is arranged at the communication position of the first tunnel section and the second tunnel section, the concentrated smoke exhaust port is communicated with the conventional smoke exhaust duct in the first tunnel section, a concentrated smoke exhaust air valve used for opening or closing a passage between the communication position of the first tunnel section and the second tunnel section and the conventional smoke exhaust duct in the first tunnel section is arranged in the concentrated smoke exhaust port, a plurality of conventional smoke exhaust ports communicated with the conventional smoke exhaust duct are arranged in the first tunnel section at intervals, and the conventional smoke exhaust port is communicated with the conventional smoke exhaust duct in the first tunnel section, the conventional smoke exhaust port is internally provided with a conventional smoke exhaust air valve for opening or closing a channel between the first tunnel section and the conventional smoke exhaust air channel, and a plurality of jet fans for accelerating the circulation of internal air are arranged at intervals between the second tunnel section.
The utility model has the advantages that: the utility model discloses a smoke exhaust system is arranged in interval conflagration of restricted tunnel in flue gas channel of discharging fume, through can arrange the conventional exhaust port in the first tunnel interval that discharges fume the wind channel, set up the efflux fan in the second tunnel interval that can not arrange the flue gas channel of discharging fume, and set up the concentrated exhaust port in the intercommunication department between first tunnel interval and second tunnel interval, can take place the conflagration back in the second tunnel interval and discharge through the flue gas that concentrated exhaust port and conventional exhaust port will produce under the effect of efflux fan, the personnel in the tunnel of being convenient for, the vehicle is sparse and flees.
On the basis of the technical scheme, the utility model discloses can also do as follows the improvement:
further: and the conventional smoke exhaust ports are uniformly arranged in the first tunnel interval at equal intervals, and the jet flow fans are uniformly arranged in the second tunnel interval at equal intervals.
The beneficial effects of the further scheme are as follows: through inciting somebody to action regular exhaust port evenly equally spaced sets up in the interval of first tunnel, be convenient for play even smoke exhaust effect when taking place the conflagration in the interval of first tunnel, avoid local to discharge fume unobstructed sparse of influencing personnel and vehicle in the tunnel.
Further: the conventional smoke exhaust ports are arranged on the side wall or the top wall of the first tunnel interval, the distance between every two adjacent conventional smoke exhaust ports is not more than 50m, and the smoke exhaust amount of the conventional smoke exhaust ports is not less than 20m3/s。
The beneficial effects of the further scheme are as follows: by controlling the distance between two adjacent conventional smoke outlets and the smoke discharge amount of the conventional smoke outlets, the generated smoke can be discharged timely and thoroughly when a fire disaster occurs in the first tunnel section.
Further: the jet flow fans are arranged on the top wall of the first tunnel interval, the distance between every two adjacent jet flow fans is not more than 100m, and the range of the wind speed of the tunnel section under the driving action of the jet flow fans is 2-3 m/s.
The beneficial effects of the further scheme are as follows: through with the jet fan sets up on the roof between the first tunnel section, can avoid the setting of jet fan to cause the influence to the current of vehicle on the one hand, on the other hand can be in time, smoothly, thoroughly discharge the flue gas that stretches to the tunnel top.
Further: the roof between the second tunnel interval is equipped with the backup pad, and is a plurality of the efflux fan divides into the multiunit, and every group the efflux fan along the parallel interval of width direction between the second tunnel interval hangs the setting in the backup pad.
The beneficial effects of the further scheme are as follows: through set up the backup pad on the interval roof of second tunnel, can conveniently fix the efflux fan to the whole form even array's distribution mode.
Further: the concentrated smoke exhaust port is arranged at the communication position between one end of the first tunnel section and the second tunnel sectionThe side wall or the top wall, and the smoke discharge amount of the concentrated smoke discharge port is not less than 120m3/s。
The beneficial effects of the further scheme are as follows: by controlling the position and the smoke discharge amount of the centralized smoke discharge port, the generated smoke can be quickly and timely discharged through the centralized smoke discharge port when a fire disaster happens in the second tunnel region.
Further: the fire smoke exhaust system with the limited tunnel section arranged in the smoke exhaust duct further comprises a plurality of smoke monitoring assemblies, wherein the smoke monitoring assemblies are arranged between the first tunnel section and the second tunnel section at intervals and used for monitoring whether fire early warning occurs between the first tunnel section and the second tunnel section.
The beneficial effects of the further scheme are as follows: through setting up whether conflagration appears in smog monitoring subassembly can the first tunnel interval of real-time detection and the second tunnel interval to generate the prompt message when the conflagration breaing out, relevant department or personnel of being convenient for in time deal with, guarantee the safety of vehicle that passes, through the current order of guaranteeing the tunnel interval.
Further: the system of discharging fume of conflagration that the wind channel of discharging fume laid the confined tunnel interval still includes a plurality of audible and visual alarm subassemblies, and is a plurality of audible and visual alarm subassembly sets up the both ends between the tunnel and in the tunnel interval, and the smog monitoring subassembly sends alarm information when monitoring that the fire early warning appears in the tunnel interval.
The beneficial effects of the further scheme are as follows: through setting up audible and visual alarm subassembly can send alarm information when the conflagration early warning appears in the tunnel interval, reminds vehicle and personnel in the tunnel interval in time to evacuate and flee for one's life to also can remind the workshop that has not got into in the tunnel interval to suspend to drive in, and the vehicle that drives out in the tunnel interval drives away from fast.
Further: the fire smoke exhaust system with the limited tunnel section for arranging the smoke exhaust duct further comprises a control terminal, wherein the control terminal is electrically connected with a concentrated smoke exhaust fan and a conventional smoke exhaust fan at the tail end of the conventional smoke exhaust duct in the first tunnel section, a jet fan, a smoke monitoring assembly and an acousto-optic alarm assembly respectively.
The beneficial effects of the further scheme are as follows: through control terminal can be according to the monitoring result control of smog monitoring subassembly concentrates the operating condition of smoke exhaust fan, conventional smoke exhaust fan and efflux fan to and control audible and visual alarm subassembly sends alarm information when taking place the conflagration.
Drawings
Fig. 1 is a schematic view of a fire smoke exhaust structure in a tunnel section with limited arrangement of smoke exhaust ducts according to an embodiment of the present invention;
fig. 2 is a schematic view of the arrangement of the jet fan according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a relationship between the engineering simulation smoke spreading and the time according to an embodiment of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the device comprises a first tunnel section, a second tunnel section and a common smoke exhaust port, wherein the first tunnel section comprises 2 the second tunnel section, 3 the common smoke exhaust port comprises 4 the common smoke exhaust port, 5 the jet flow fan comprises 6 the supporting plate.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in figure 1, a fire smoke exhaust system with a smoke exhaust duct layout restricted tunnel section is provided, the tunnel section is divided into a first tunnel section 1 (AB section in figure 1, length is about 300 m) which can be provided with the smoke exhaust duct and a second tunnel section 2 (BC section in figure 1, length is about 400 m) which can not be provided with the smoke exhaust duct, one end of the first tunnel section 1 is communicated with one end of the second tunnel section 2, a centralized smoke exhaust port 3 communicated with a conventional smoke exhaust duct in the first tunnel section 1 is arranged at the communication part (B part in figure 1) of the first tunnel section 1, the centralized smoke exhaust port 3 is communicated with the conventional smoke exhaust duct in the first tunnel section 1, a centralized smoke exhaust air valve used for opening or closing a channel between the communication part of the first tunnel section 1 and the second tunnel section 2 and the conventional smoke exhaust duct in the first tunnel section 1 is arranged in the centralized smoke exhaust port 3, the interval is equipped with a plurality ofly and the conventional exhaust port 4 of conventional exhaust flue intercommunication (including six conventional exhaust ports 4-1 to 4-6) in the interval 1 in first tunnel, conventional exhaust port 4 with the conventional exhaust flue intercommunication in the interval 1 in first tunnel, be equipped with in the conventional exhaust port 4 and be used for opening or shutoff the interval 1 in first tunnel with the conventional exhaust air valve of passageway between the conventional exhaust flue, the interval of the interval 2 in second tunnel is equipped with a plurality of jet fan 5 (including four jet fan 5-1 to 5-4) that are used for accelerating inside circulation of air.
The utility model discloses a smoke exhaust system is arranged in interval conflagration of restricted tunnel in flue gas channel, through can arrange the conventional exhaust port in 1 interval in the first tunnel that discharges fume the flue, set up efflux fan 5 in 2 intervals in the second tunnel that can not establish the exhaust port, and set up concentrated exhaust port 3 in 1 interval in the first tunnel and 2 intercommunication departments in the interval of second tunnel, can take place after the fire disaster in 2 intervals in the second tunnel and discharge the flue gas that produces through concentrated exhaust port 3 and conventional exhaust port 4 under the effect of efflux fan 5, the personnel in the tunnel of being convenient for, the vehicle is sparse and flees.
The utility model discloses an in one or more embodiments, it is a plurality of the even equidistant setting of conventional exhaust port 4 is in the first tunnel interval 1, it is a plurality of the even equidistant setting of efflux fan 5 is in the second tunnel interval 2. Through inciting somebody to action conventional exhaust port 4 is even equidistant to be set up in the interval 1 of first tunnel, be convenient for play even smoke exhaust effect when taking place the conflagration in the interval 1 of first tunnel, avoid local to discharge fume unobstructed sparse of influencing personnel and vehicle in the tunnel.
Specifically, in one or more embodiments of the utility model, conventional exhaust port 4 sets up on the lateral wall or the roof of interval 1 in first tunnel, and adjacent two distance between conventional exhaust port 4 is not more than 50m, and conventional exhaust port size is 3m 1m, the volume of discharging fume of conventional exhaust port 4 is not less than 20m3In fig. 1, six conventional smoke vents are shown. By controlling the distance between two adjacent conventional smoke outlets 4 and the smoke discharge amount of the conventional smoke outlets 4, the generated smoke can be ensured to be timely and thoroughly generated in the first tunnel section 1 when a fire breaks outAnd (4) exhausting the gas.
Specifically, in one or more embodiments of the present invention, the jet fans 5 are disposed on the top wall of the first tunnel section 1, and the distance between the jet fans 5 is not greater than 100m, and the range of the wind speed of the tunnel section under the driving action of the jet fans 5 is 2-3 m/s. Through with jet fan 5 sets up on the roof of interval 1 in first tunnel, can avoid jet fan 5's setting to cause the influence to the current of vehicle on the one hand, on the other hand can be in time, smoothly, thoroughly discharge the flue gas that stretches to the tunnel top.
The utility model discloses an in one or more embodiments the roof of the interval 2 of second tunnel is equipped with backup pad 6, and is a plurality of the efflux fan 5 divides into the multiunit, every group efflux fan 5 along the parallel interval of width direction of the interval 2 of second tunnel hangs the setting and is in on the backup pad 6, shows the situation of 4 groups efflux fans in figure 1, shows the situation of two efflux fans 5 of every group in figure 2, interval 3 m. Through set up backup pad 6 on the roof of second tunnel interval 2, can conveniently fix jet fan 6 to the whole distribution mode that forms even array.
The utility model discloses an in one or more embodiments, concentrate exhaust port 3 and set up on the lateral wall or the roof of the interval 2 intercommunications department of one end of interval 1 of first tunnel and second tunnel, concentrate the exhaust port size and be 10m 2m, just concentrate exhaust port 3's the volume of discharging fume and be not less than 120m3And s. By controlling the position and the smoke discharge amount of the centralized smoke discharge port 3, the generated smoke can be quickly and timely discharged through the centralized smoke discharge port when a fire disaster occurs in the second tunnel region 2.
Optionally, the utility model discloses a in one or more embodiments, the system of discharging fume of conflagration that restricted tunnel interval was laid to the wind channel of discharging fume still includes a plurality of smog monitoring component, and is a plurality of smog monitoring component interval sets up between 1 of first tunnel and the interval 2 of second tunnel, and the monitoring whether conflagration early warning appears in between 1 of first tunnel and the interval 2 of second tunnel. Through setting up whether conflagration appears in smog monitoring subassembly can the interval 1 of real-time detection first tunnel and the interval 2 of second tunnel to generate tip information when the conflagration breaing out, relevant department or personnel of being convenient for in time deal with, guarantee the safety of passing vehicle, through the current order of guaranteeing the tunnel interval. In the invention, ten smoke monitoring components are respectively arranged in one-to-one correspondence with the positions of the conventional smoke outlets, the concentrated smoke outlets and the jet fans 5, or are arranged between two adjacent conventional smoke outlets, between the adjacent conventional smoke outlets and the concentrated smoke outlets, between the adjacent concentrated smoke outlets and the jet fans 5 and between the two adjacent jet fans 5 in one-to-one correspondence.
Optionally, in one or more embodiments of the utility model, the system of discharging fume of conflagration that the tunnel interval that the restricted was laid in the wind channel of discharging fume still includes a plurality of acousto-optic warning subassemblies, and is a plurality of acousto-optic warning subassembly sets up the both ends between the tunnel and in the tunnel interval, and smog monitoring subassembly sends alarm information when monitoring the fire early warning in the tunnel interval. Through setting up audible and visual alarm subassembly can send alarm information when the conflagration early warning appears in the tunnel interval, reminds vehicle and personnel in the tunnel interval in time to evacuate and flee for one's life to also can remind the workshop that has not got into in the tunnel interval to suspend to drive in, and the vehicle that drives out in the tunnel interval drives away from fast.
Optionally, in one or more embodiments of the utility model, the conflagration system of discharging fume that the restricted tunnel interval was laid to the wind channel of discharging fume still includes control terminal, control terminal is connected with the terminal concentrated smoke exhaust fan and the conventional smoke exhaust fan, efflux fan 5, smog monitoring subassembly and the acousto-optic warning subassembly electricity of the conventional wind channel of discharging fume in the interval 1 of first tunnel respectively. Through control terminal can be according to the monitoring result control of smog monitoring components concentrates the operating condition of smoke exhaust fan, conventional smoke exhaust fan and efflux fan 5 to and control audible and visual alarm subassembly sends alarm information when taking place the conflagration.
The utility model discloses a smoke exhaust duct lays conflagration smoke exhaust system between restricted tunnel's theory of operation does:
(1) when the smoke monitoring component monitors that a BD section of a second tunnel section 2 of the tunnel is in fire, the smoke monitoring component feeds back a signal to the control terminal, the control terminal starts the centralized smoke exhaust fan, opens the centralized smoke exhaust port 3, closes the conventional smoke exhaust ports 4-1 to 4-6, simultaneously starts the jet fan 5-1 at the D position to blow from the D end to the B end (as shown in figure 1), starts fire smoke exhaust, and controls high-temperature smoke of the fire in the BD section range as much as possible so as to be convenient for people in the tunnel to evacuate and escape. And if the high-temperature flue gas spreads across the end B and spreads to the conventional smoke outlet 4-6 in the first tunnel interval 1, starting the conventional smoke outlet 4-6 to assist in smoke exhaust. And if the high-temperature flue gas is spread to the end D and is spread to the jet flow fan 5-2, starting the jet flow fan 5-2 to assist in smoke discharge.
(2) When the smoke monitoring component monitors that a fire disaster happens in the DE section of the tunnel, a signal is fed back to the control terminal, the control terminal controls the concentrated smoke exhaust fan to BE started, the concentrated smoke exhaust port 3 is opened, the conventional smoke exhaust ports 4-1 to 4-6 are closed, the jet flow fan 5-2 is started to blow from the E end to the B end (as shown in figure 1), the smoke exhaust of the fire disaster is started, the high-temperature smoke of the fire disaster is controlled in the range of the BE section as much as possible, and people in the tunnel can BE evacuated and escape conveniently. If the high-temperature flue gas spreads over the end B and spreads to the conventional smoke outlet 4-6, the conventional smoke outlet 6 is started to assist in smoke exhaust. And if the high-temperature flue gas is spread to the E end and spread to the jet flow fan 5-3, starting the jet flow fan 5-3 to assist in smoke discharge.
(3) When the smoke monitoring system monitors that a fire disaster occurs in the EF section of the tunnel, a signal is fed back to the control terminal, the control terminal controls the concentrated smoke exhaust fan to be started, the concentrated smoke exhaust port 3 is opened, the conventional smoke exhaust ports 4-1 to 4-6 are closed, meanwhile, the jet flow fan 5-3 is started to blow from the F end to the B end (as shown in figure 1), the smoke exhaust of the fire disaster is started, the high-temperature smoke of the fire disaster is controlled in the range of the BF section as much as possible, and people in the tunnel can be evacuated and escape conveniently. If the high-temperature flue gas spreads over the end B and spreads to the conventional smoke outlet 4-6, the conventional smoke outlet 4-6 is started to assist in smoke exhaust. And if the high-temperature flue gas is spread to the end F and spread to the jet flow fan 5-4, starting the jet flow fan 5-4 to assist in smoke discharge.
(4) When the smoke monitoring assembly monitors that a fire disaster occurs in the FC section of the tunnel, a signal is fed back to the control terminal, the control terminal controls the concentrated smoke exhaust fan to be started, the concentrated smoke exhaust port 3 is opened, the conventional smoke exhaust ports 4-1 to 4-6 are closed, the jet flow fan 5-4 is started to blow from the C end to the B end (as shown in figure 1), smoke exhaust of the fire disaster is started, high-temperature smoke of the fire disaster is controlled in the BC section range as much as possible, and people in the tunnel can be evacuated and escape conveniently. If the high-temperature flue gas spreads over the end B and spreads to the conventional smoke outlet 4-6, the conventional smoke outlet 4-6 is started to assist in smoke exhaust. If the high-temperature flue gas spreads over the end C, the smoke outlet 4-1 to 4-6 is started to assist in smoke discharge.
(5) People evacuation and escape
The fire position is to the C end, and the flue gas backward flow phenomenon can not take place after efflux fan 5 starts, and personnel can evacuate to the C end. Conflagration to B end, smoke exhaust fan opens the back, and high temperature flue gas can stretch to B end, and clear height is higher in the middle of the tunnel cross-section, and personnel can deviate from the conflagration direction along the tunnel central line and flee. At the AB end of the tunnel, most of smoke is controlled from the B end of the tunnel to the fire section, and people in the AB section of the tunnel can be evacuated to the A end.
In practice, an engineering simulation experiment is carried out on the fire smoke exhaust system with the limited tunnel section for arranging the smoke exhaust duct, the fire disaster is considered to occur at the middle E point of the BD section of the tunnel which is most unfavorable for smoke exhaust, no piston wind speed is assumed in the tunnel, the temperature in the tunnel is 20 ℃, the pressure is 1 standard atmospheric pressure, the disturbance of personnel movement to the air flow in the tunnel after the fire disaster is ignored, the fire disaster in the tunnel is a medium-sized small fire disaster, the fire disaster scale is 15MW, and the fire source area is 6m2The simulation result shows that the centralized smoke exhaust fan and the jet flow fan 3 are started 60 seconds after the fire occurs, and the relation between the smoke spreading and the time is shown in fig. 3.
As can be seen from fig. 3, within 60 seconds of a fire, the smoke first spreads towards the top of the tunnel and then symmetrically spreads towards both ends. After the jet flow fan 5 and the conventional smoke exhaust fan 4 are started, smoke is spread to the AB section and does not spread to the C end any more, and the backflow phenomenon does not occur. Within 200 meters of the B-side to the location of the fire, it takes 180 seconds for the fire to spread. The smoke is spread leftwards and is almost stabilized within the range of 100 meters leftwards at the B end, and people in tunnels of an EC section and an AB section can escape conveniently.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. The utility model provides a fire smoke exhaust system that restricted tunnel interval was laid to wind channel that discharges fume which characterized in that: the tunnel section is divided into a first tunnel section (1) which can be provided with a smoke exhaust duct and a second tunnel section (2) which can not be provided with the smoke exhaust duct, one end of the first tunnel section (1) is communicated with one end of the second tunnel section (2), a concentrated smoke exhaust port (3) communicated with the conventional smoke exhaust duct in the first tunnel section (1) is arranged at the communication position of the first tunnel section and the second tunnel section, the concentrated smoke exhaust port (3) is communicated with the conventional smoke exhaust duct in the first tunnel section (1), a concentrated smoke exhaust air valve for opening or closing a passage between the communication position of the first tunnel section (1) and the second tunnel section (2) and the conventional smoke exhaust duct in the first tunnel section (1) is arranged in the concentrated smoke exhaust port (3), and a plurality of conventional smoke exhaust ports (4) communicated with the conventional smoke exhaust duct are arranged in the first tunnel section (1) at intervals, conventional exhaust port (4) with the wind channel intercommunication is discharged fume to the conventionality in the interval (1) in first tunnel, be equipped with in the conventionality exhaust port (4) and be used for opening or shutoff the interval (1) in first tunnel with the conventionality is discharged fume the conventional blast gate of discharging fume of passageway between the wind channel, the interval of the interval (2) in second tunnel is equipped with a plurality of jet fan (5) that are used for accelerating inside circulation of air.
2. A fire smoke evacuation system for tunnel sections with restricted smoke evacuation ducting arrangement as claimed in claim 1, wherein: the conventional smoke exhaust ports (4) are uniformly arranged in the first tunnel interval (1) at equal intervals, and the jet flow fans (5) are uniformly arranged in the second tunnel interval (2) at equal intervals.
3. A fire smoke evacuation system for tunnel sections with restricted smoke evacuation ducting arrangement according to claim 2, wherein: the conventional smoke exhaust port (4) is arranged on the side wall or the top wall of the first tunnel section (1) and is adjacent to the first tunnel sectionThe distance between the conventional smoke outlets (4) is not more than 50m, and the smoke discharge amount of the conventional smoke outlets (4) is not less than 20m3/s。
4. A fire smoke evacuation system for tunnel sections with restricted smoke evacuation ducting arrangement according to claim 2, wherein: the jet flow fans (5) are arranged on the top wall of the first tunnel section (1), the distance between every two adjacent jet flow fans (5) is not more than 100m, and the range of the wind speed of the tunnel section under the driving action of the jet flow fans (5) is 2-3 m/s.
5. A fire smoke exhaust system with limited tunnel layout of smoke exhaust ducts according to claim 4, wherein: the roof of the second tunnel interval (2) is provided with a supporting plate (6), the jet fans (5) are divided into a plurality of groups, and each group of jet fans (5) is hung on the supporting plate (6) at intervals in parallel along the width direction of the second tunnel interval (2).
6. A fire smoke evacuation system for tunnel sections with restricted smoke evacuation ducting arrangement according to claim 2, wherein: the concentrated smoke outlet (3) is arranged on the side wall or the top wall of the communicated part of one end of the first tunnel section (1) and the second tunnel section (2), and the smoke discharge amount of the concentrated smoke outlet (3) is not less than 120m3/s。
7. A fire smoke exhaust system with a limited tunnel space arranged in a smoke exhaust duct according to any one of claims 1 to 6, wherein: still include a plurality of smog monitoring components, it is a plurality of smog monitoring components interval sets up in first tunnel interval (1) and second tunnel interval (2) are within a definite time, and the monitoring first tunnel interval (1) and second tunnel interval (2) are within a definite time the fire early warning appears.
8. A fire smoke evacuation system for tunnel sections with restricted smoke evacuation ducting arrangement as claimed in claim 7 wherein: still include a plurality of acousto-optic warning subassemblies, it is a plurality of acousto-optic warning subassembly sets up the interval both ends in tunnel and in the tunnel interval, and the smog monitoring subassembly monitors and sends alarm information when the fire early warning appears in the tunnel interval.
9. A fire smoke evacuation system for tunnel sections with restricted smoke evacuation ducting arrangement as claimed in claim 8 wherein: the tunnel smoke exhaust system is characterized by further comprising a control terminal, wherein the control terminal is electrically connected with a concentrated smoke exhaust fan and a conventional smoke exhaust fan at the tail end of a conventional smoke exhaust duct in the first tunnel section (1), the jet fan (5), the smoke monitoring assembly and the acousto-optic alarm assembly respectively.
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| CN202021667313.XU CN213269952U (en) | 2020-08-11 | 2020-08-11 | Fire smoke exhaust system with limited tunnel interval arranged in smoke exhaust duct |
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| CN202021667313.XU CN213269952U (en) | 2020-08-11 | 2020-08-11 | Fire smoke exhaust system with limited tunnel interval arranged in smoke exhaust duct |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| GR01 | Patent grant |