CN214499127U - Tunnel fire alarm and ventilation smoke exhaust system - Google Patents
Tunnel fire alarm and ventilation smoke exhaust system Download PDFInfo
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- CN214499127U CN214499127U CN202120211809.4U CN202120211809U CN214499127U CN 214499127 U CN214499127 U CN 214499127U CN 202120211809 U CN202120211809 U CN 202120211809U CN 214499127 U CN214499127 U CN 214499127U
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- 239000000779 smoke Substances 0.000 title claims abstract description 76
- 238000009423 ventilation Methods 0.000 title claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims 4
- 238000007599 discharging Methods 0.000 abstract description 11
- 239000003517 fume Substances 0.000 abstract description 10
- 230000006378 damage Effects 0.000 abstract description 4
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 1
- 235000019504 cigarettes Nutrition 0.000 description 3
- 206010003497 Asphyxia Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a tunnel fire alarm and ventilation smoke exhaust system, including tunnel main part, fire alarm, tunnel main part includes the tunnel top discharge flue that comprises tunnel vault and wind channel board sealing connection, tunnel vault both ends set up the efflux fan respectively, tunnel vault center is equipped with concentrated exhaust port, concentrated exhaust port department is equipped with at least one draught fan, set up a plurality of wind channel mouths on the wind channel board along the tunnel vertically, wind channel mouth department is equipped with the smoke detector, the discharge flue above a plurality of wind channel mouths is located the discharge flue between two efflux fans; the smoke detector is connected with the controller, and the controller is connected with the jet fan, the draught fan, the air duct opening and the fire alarm. Tunnel fire alarm and ventilation system of discharging fume when fire alarm triggers, can get rid of the high temperature dense smoke of the inside burning things which may cause a fire disaster department of tunnel main part by the high efficiency, prevent stretching of the dense smoke in tunnel and reduce the personnel's injury that dense smoke caused.
Description
Technical Field
The utility model relates to a tunnel fire ventilation field of discharging fume, concretely relates to can high-efficiently get rid of tunnel fire alarm and ventilation system of discharging fume of dense cigarette of conflagration.
Background
With the development requirement of a traffic network, the tunnel is used as an engineering building of an underground passage, and has some advantages which cannot be compared with other engineering. In recent years, the scale and number of underground tunnel construction have been on the whole in an increasing trend. However, many fire hazards still exist in the tunnel operation process, and great threat is generated to driving safety in the tunnel.
It has been found that in a fire, 85% of victims are caused by smoke suffocation. When a tunnel fire occurs, the spreading speed of the dense smoke exceeds the speed of the fire by 5 times, and the generated energy exceeds the fire by 5-6 times. Dense smoke at extremely high temperatures can also pose a threat to people who are far away. In addition, the appearance of dense smoke can seriously affect the sight of people, so that the people cannot see the escape and self-rescue directions clearly and fall into a dilemma. In addition, the fire in the tunnel is generally difficult to treat quickly, and needs to wait for the arrival of fire fighters. However, before a fire disaster, it is precious every second, so how to perform efficient ventilation and smoke evacuation while triggering a fire alarm to avoid dense smoke spreading or casualties due to dense smoke suffocation becomes a difficult problem in tunnel operation.
Disclosure of Invention
In order to effectively restrain when the tunnel fire takes place, the personnel injury that stretch and reduce dense smoke and cause of dense smoke, the utility model aims to solve the technical problem that a tunnel fire alarm and ventilation smoke exhaust system that can high-efficiently get rid of the inside fire source department high temperature dense smoke of tunnel main part when fire alarm triggers is provided.
The utility model provides a technical scheme that above-mentioned technical problem adopted is: a tunnel fire alarm and ventilation smoke exhaust system comprises a tunnel main body, wherein a fire alarm is arranged in the tunnel main body, the tunnel main body comprises a tunnel top discharge flue and a tunnel bottom traffic lane, and the tunnel top discharge flue is formed by hermetically connecting a tunnel vault and an air duct plate;
jet fans are respectively arranged at two ends of the tunnel vault;
a centralized smoke exhaust port is arranged in the center of the arch crown of the tunnel, and at least one induced draft fan is arranged at the centralized smoke exhaust port;
a plurality of air duct openings are longitudinally arranged on the air duct plate along the tunnel, a smoke detector for detecting smoke concentration is arranged at each air duct opening, and the discharge flue above the air duct openings is positioned in the discharge flue between the two jet flow fans;
the smoke detector is connected with the controller, and the controller is connected with the two jet flow fans, the at least one induced draft fan, the air duct openings and the fire alarm.
Further, two efflux fans set up respectively in the entrance of tunnel main part and the exit of tunnel main part, two efflux fans's air outlet sets up relatively.
Preferably, the plurality of air duct openings are arranged at equal intervals along the longitudinal direction of the tunnel.
Preferably, the air duct plate is made of fireproof materials, and the air duct plate is fixedly connected with the arch top of the tunnel through expansion bolts.
Further, the fire alarm is connected with a remote monitoring center.
Preferably, a plurality of manual fire extinguishers are further arranged inside the tunnel main body.
Preferably, the tunnel structure at the entrance of the tunnel main body is provided with at least one fire-fighting flash device, and the fire-fighting flash device is connected with the controller.
Preferably, an air supply mechanism for supplying fresh air flow to the inside of the tunnel is arranged outside the tunnel main body, and the air supply mechanism is composed of a blower and an air supply pipeline connected with the tunnel main body.
Preferably, the air supply duct includes a plurality of branch ducts installed on a left end surface or a right end surface of the tunnel body, the plurality of branch ducts are connected to an air collecting duct, the air collecting duct is connected to a main duct, and the main duct is connected to the blower.
Compared with the prior art, the utility model have following advantage and effect:
1. tunnel fire alarm and ventilation system of discharging fume, through setting up two jet fans at the tunnel vault, set up the smoke detector who is used for detecting smoke concentration on a plurality of wind channel mouths respectively, judge the position of fire source according to the smoke concentration that smoke detector detected indirectly, and open through the corresponding wind channel mouth of controller control, the dense cigarette in tunnel can directly get into the discharge flue along the wind channel mouth that closes on, then effectively avoided stretching of the dense cigarette of high temperature in the tunnel, the smog that gets into in the discharge flue simultaneously is under the effect of two jet fans and the tunnel concentrated department draught fan of discharging fume, can discharge from the tunnel fast, then effectively shortened the exhaust duration, the efficiency of discharging fume is improved.
2. Tunnel fire alarm and ventilation system of discharging fume, when tunnel conflagration takes place, when controller control fire alarm opened, the corresponding ventilation system of discharging fume of control was opened, in time got rid of the inside conflagration dense smoke in tunnel high-efficiently, avoided dense smoke to stretch and because inhale dense smoke and lead to the emergence that personnel stifled, casualty accident, ensured navigating mate's the security of the lives and property in the tunnel.
3. Tunnel fire alarm and ventilation system of discharging fume, set up at least one fire control flash of light device that is connected with the controller through the entrance at the tunnel main part, when the tunnel conflagration takes place, the controller in time control fire control flash of light device open, realize avoiding outside vehicle in the very first time under the condition of unwittingly, get into inside the tunnel.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is the embodiment of the utility model discloses a tunnel fire alarm and ventilation system of discharging fume's internal structure sketch map.
Fig. 2 is an external structural schematic diagram of a tunnel fire alarm and ventilation and smoke exhaust system according to one embodiment of the present invention.
Fig. 3 is a control schematic diagram of a tunnel fire alarm and ventilation and smoke exhaust system according to an embodiment of the present invention.
Description of reference numerals: 1. a tunnel body; 11. a tunnel top discharge flue; 12. a roadway at the bottom of the tunnel; 13. a centralized smoke outlet; 14. a fire-fighting flash device; 2. an air duct plate; 21. an air duct opening; 22. a smoke detector; 3. a jet fan; 4. an induced draft fan; 5. an air supply mechanism; 51. a blower; 52. an air collecting pipe; 53. a main air duct; 54. and (4) branch pipelines.
Detailed Description
The present invention will be described in further detail with reference to the following examples, which are illustrative of the present invention and are not intended to limit the present invention.
Example 1: as shown in fig. 1, a tunnel fire alarm and ventilation smoke exhaust system comprises a tunnel main body 1, wherein a fire alarm is arranged in the tunnel main body 1, the tunnel main body 1 comprises a tunnel top discharge flue 11 and a tunnel bottom traffic lane 12, and the tunnel top discharge flue 11 is formed by hermetically connecting a tunnel vault and an air duct plate 2;
a centralized smoke outlet 13 is formed in the center of the tunnel vault, at least one induced draft fan 4 is arranged at the centralized smoke outlet 13, and jet flow fans 3 are arranged at two ends of the tunnel vault respectively;
a plurality of air duct openings 21 are arranged on the air duct plate 2 at equal intervals along the longitudinal direction of the tunnel, smoke detectors 22 for detecting smoke concentration are arranged at the air duct openings 21, and a discharge flue above the air duct openings 21 is positioned in a discharge flue between the two jet flow fans 3;
the smoke detectors 22 are all connected with a controller, and the controller is connected with the two jet flow fans 3, the at least one induced draft fan 4, the air duct openings 21 and the fire alarm.
Specifically, in the embodiment 1, the air duct plate 2 is made of a fireproof material, and the air duct plate 2 is fixedly connected with the arch top of the tunnel through an expansion bolt; the fire alarm is connected with a remote monitoring center; two efflux fans 3 set up respectively in the entrance of tunnel main part 1 and the exit of tunnel main part 1, two efflux fans 3's air outlet sets up relatively.
The working principle of the tunnel fire alarm and ventilation and smoke exhaust system described in this embodiment 1 is shown in fig. 3, and specifically includes:
in a normal state, all the air duct openings 21 in the tunnel main body 1 are in a closed state;
the smoke detectors 22 arranged at the air duct openings 21 detect the smoke concentration in the tunnel in real time, when the smoke concentration detected by the smoke detector at one or two adjacent air duct openings is greater than a set threshold value, the fact that a fire disaster exists in the main body part of the tunnel corresponding to the air duct opening is indicated, and the controller starts a fire alarm to send out a remote fire alarm; and simultaneously controlling an air duct opening corresponding to the smoke detector to be opened, starting a draught fan at a concentrated smoke exhaust opening and jet fans at two ends of a tunnel vault, and rapidly discharging smoke at fixed points in an ignition area in the tunnel main body so as to effectively avoid the damage of high-temperature dense smoke to trapped people.
Example 2: as shown in fig. 2, a tunnel fire alarm and ventilation and smoke exhaust system is different from embodiment 1 in that an air supply mechanism 5 for supplying fresh air flow to the inside of a tunnel is provided outside a tunnel main body 1, the air supply mechanism 5 is composed of a blower 51 and an air supply duct connected to the tunnel main body, the air supply duct includes a plurality of branch ducts 54 installed on the left end surface or the right end surface of the tunnel main body 1, the plurality of branch ducts 54 are connected to an air collecting duct 52, the air collecting duct 52 is connected to a main duct 53, and the main duct 53 is connected to the blower 51.
In this embodiment 2, when a tunnel fire is extinguished and the smoke concentration detected by the smoke detector is lower than the threshold value, the controller controls the corresponding air duct opening to be closed, and the corresponding jet fan and the induced draft fan stop operating. Meanwhile, in order to improve the air quality inside the tunnel after a fire, the air supply mechanism 5 disposed outside the tunnel may be manually opened so as to restore the air quality inside the tunnel to a normal state in a short time.
Example 3: as shown in fig. 1 and 2, a tunnel fire alarm and ventilation and smoke exhaust system is different from those of embodiments 1 and 2 in that a plurality of manual fire extinguishers are further provided inside a tunnel main body 1. The installation of a plurality of manual fire extinguishers in the tunnel can be used for fire extinguishing treatment when the fire is small; and can be used for relieving fire spread when the fire is serious.
Example 4: as shown in fig. 1 and 2, a tunnel fire alarm and ventilation and smoke exhaust system is different from the embodiments 1, 2 and 3 in that at least one fire protection flashing device 14 is arranged on a tunnel structure at an inlet of a tunnel main body 1, and the fire protection flashing device 14 is connected with a controller. Wherein the at least one fire fighting flash device 14 is arranged to: the outside traffic vehicles are warned in the first time of the fire so as to avoid the outside vehicles from entering the tunnel under the condition of being unknowingly.
In summary, the tunnel fire alarm and ventilation and smoke exhaust system described in embodiments 1 to 4 starts the ventilation and smoke exhaust system in the tunnel while triggering the fire alarm, so that the damage of the dense fire smoke to trapped people and firefighters can be effectively reduced; meanwhile, the ventilation and smoke exhaust system can also remove tunnel dense smoke in the shortest time, and the smoke exhaust efficiency is high.
In addition, it should be noted that the specific embodiments described in the present specification may differ in the shape of the components, the names of the components, and the like. All equivalent or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (9)
1. A tunnel fire alarm and ventilation smoke exhaust system comprises a tunnel main body (1), wherein a fire alarm is arranged in the tunnel main body (1), and is characterized in that the tunnel main body (1) comprises a tunnel top discharge flue (11) and a tunnel bottom traffic lane (12), and the tunnel top discharge flue (11) is formed by hermetically connecting a tunnel vault and an air duct plate (2);
jet fans (3) are respectively arranged at two ends of the tunnel vault;
a centralized smoke outlet (13) is formed in the center of the arch top of the tunnel, and at least one induced draft fan (4) is arranged at the centralized smoke outlet (13);
a plurality of air duct openings (21) are longitudinally arranged on the air duct plate (2) along the tunnel, smoke detectors (22) used for detecting smoke concentration are arranged at the air duct openings (21), and discharge ducts above the air duct openings (21) are positioned in discharge ducts between the two jet flow fans (3);
the smoke detector (22) is connected with a controller, and the controller is connected with the two jet flow fans (3), the at least one induced draft fan (4), the air duct openings (21) and the fire alarm.
2. The tunnel fire alarm and ventilation and smoke exhaust system according to claim 1, wherein the two jet fans (3) are respectively arranged at the inlet of the tunnel main body (1) and the outlet of the tunnel main body (1), and the air outlets of the two jet fans (3) are oppositely arranged.
3. A tunnel fire alarm and ventilation smoke evacuation system according to claim 1 wherein said plurality of air duct openings (21) are arranged at equal intervals along the longitudinal direction of the tunnel.
4. A tunnel fire alarm and ventilation smoke exhaust system according to claim 1, wherein said air duct plate (2) is made of fire-proof material, and said air duct plate (2) is fixedly connected with the tunnel vault through expansion bolts.
5. A tunnel fire alarm and ventilation smoke evacuation system as claimed in claim 1 wherein said fire alarm is connected to a remote monitoring center.
6. A tunnel fire alarm and ventilation smoke exhaust system according to claim 1, wherein a plurality of manual fire extinguishers are further provided inside said tunnel main body (1).
7. A tunnel fire alarm and ventilation smoke exhaust system according to claim 1 or 6, wherein at least one fire fighting flash device (14) is provided on the tunnel structure at the entrance of said tunnel body (1), said fire fighting flash device (14) being connected to a controller.
8. A tunnel fire alarm and ventilation and smoke exhaust system according to claim 7, wherein said tunnel main body (1) is externally provided with a blowing mechanism (5) for supplying fresh air flow to the inside of the tunnel, said blowing mechanism (5) is composed of a blower (51) and a blowing duct connected to the tunnel main body (1).
9. A tunnel fire alarm and ventilation and smoke exhaust system according to claim 8, wherein said blowing duct comprises a plurality of branch ducts (54) installed at a left end surface or a right end surface of said tunnel body (1), a plurality of said branch ducts (54) are connected to a collecting duct (52), said collecting duct (52) is connected to a main duct (53), and said main duct (53) is connected to a blower (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120211809.4U CN214499127U (en) | 2021-01-26 | 2021-01-26 | Tunnel fire alarm and ventilation smoke exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120211809.4U CN214499127U (en) | 2021-01-26 | 2021-01-26 | Tunnel fire alarm and ventilation smoke exhaust system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214499127U true CN214499127U (en) | 2021-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120211809.4U Active CN214499127U (en) | 2021-01-26 | 2021-01-26 | Tunnel fire alarm and ventilation smoke exhaust system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214499127U (en) |
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2021
- 2021-01-26 CN CN202120211809.4U patent/CN214499127U/en active Active
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