CN211454756U - Tunnel fire alarm and fire extinguishing system - Google Patents
Tunnel fire alarm and fire extinguishing system Download PDFInfo
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- CN211454756U CN211454756U CN201922101746.2U CN201922101746U CN211454756U CN 211454756 U CN211454756 U CN 211454756U CN 201922101746 U CN201922101746 U CN 201922101746U CN 211454756 U CN211454756 U CN 211454756U
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Abstract
The utility model provides a pair of tunnel fire alarm and fire extinguishing system, detection optical cable are located the tunnel top and arrange along the whole line, carry out real-time supervision to the temperature in the tunnel, and the temperature measurement host computer turns into temperature information transmission with the signal conversion that detection optical cable surveyed and gives the main control system. When the temperature of a certain place exceeds the fire hazard warning value, the control host judges that the place is in fire and immediately starts an alarm, smoke removal and fire extinguishing system; when smoke abatement system and fire extinguishing system start, the smoke abatement mouth that sets up around the conflagration emergence department is all opened and is carried out the smoke abatement and handle to dry powder shower nozzle in the same scope also begins to carry out dry powder and puts out a fire and handle. When the temperature in the tunnel is reduced to be lower than the warning value, the control host judges that the fire is extinguished, and then the alarm, smoke removal and fire extinguishing system is closed. The utility model discloses degree of automation is high, can carry out rapid accurate fire extinguishing treatment to conflagration in the tunnel to personnel's the security of the lives and property in the at utmost assurance tunnel.
Description
Technical Field
The utility model belongs to tunnel operation fire prevention and cure field, concretely relates to tunnel fire alarm and fire extinguishing systems.
Background
With the continuous development of the social and economic level and the continuous improvement of the requirements of people on the living quality, the scale and the number of the construction of the transportation engineering in China show a continuously increasing trend on the whole. The engineering building with the tunnel as the underground passage has incomparable advantages with other engineering, thereby showing a very obvious growth trend, particularly as the mileage is continuously increased. However, many fire hazards still exist in the tunnel operation process, and great threat is generated to driving safety in the tunnel. Therefore, tunnel fire alarm and fire extinguishing play an important role in guaranteeing the life and property safety of drivers in tunnels.
At present, most of fire monitoring devices used in tunnels in China are interval smoke alarms, and once a fire breaks out in the tunnels, the smoke alarms only have a warning effect and cannot timely and accurately determine the fire place and automatically extinguish the fire. In addition, the fire occurring in the tunnel includes oil-based fire caused by traffic accidents in addition to general fire, and general water-spray fire extinguishing may accelerate the spread of the oil-based fire. In the presence of a fire, every second becomes precious, so how to perform timely fire alarm and fire extinguishing during tunnel operation becomes a difficult problem in tunnel operation.
Disclosure of Invention
An object of the utility model is to provide a tunnel fire alarm and fire extinguishing system has solved the unable timely accurate confirm of the device that is used for fire alarm in the current tunnel and catches fire the place and can't put out a fire automatically, and the safety that leads to when the driving in the tunnel produces huge threat.
In order to achieve the above purpose, the utility model discloses a technical scheme is:
the utility model provides a tunnel fire alarm and fire extinguishing system, this tunnel fire alarm and fire extinguishing system arranges in the both sides of tunnel along the longitudinal direction of tunnel, specifically includes temperature measurement system, control system, alarm system, smoke abatement system and fire extinguishing system, wherein, temperature measurement system, alarm system, smoke abatement system and fire extinguishing system all are connected with control system;
the temperature measurement system is used for collecting a temperature peak value in the tunnel and transmitting the collected temperature peak value to the temperature measurement host;
the temperature measurement host is used for judging the position of the temperature abnormal point according to the received temperature peak value and transmitting the temperature peak value to the control host;
the control host is used for comparing the received temperature peak value with a preset threshold value, and when the received temperature peak value is larger than the preset threshold value, the control host controls the alarm system, the smoke removal system and the fire extinguishing system to be started.
Preferably, the thermometry system comprises a detection cable having a thermoplastic material wrapped thereon.
Preferably, the detection optical cable is arranged at the top of the tunnel along the longitudinal direction of the tunnel; the detection optical cable is connected with the temperature measurement host.
Preferably, the alarm system comprises an alarm, wherein the alarm is electrically connected with the control host; the alarm device is provided with a plurality of alarm devices which are arranged at intervals at the bottom of the tunnel along the longitudinal direction of the tunnel.
Preferably, the smoke removal system comprises an exhaust fan and an exhaust pipeline, wherein the exhaust pipeline is arranged at the top of the tunnel along the longitudinal direction of the tunnel, and the exhaust fan is connected with one end of the exhaust pipeline and is arranged at the tunnel opening; a plurality of smoke removing holes are arranged on the air suction pipeline at intervals along the axial direction of the air suction pipeline; remove the inlet port department of cigarette hole and install and keep off the cigarette board, it is connected with driving motor to keep off the cigarette board, driving motor and air exhauster all are connected with the main control system electricity.
Preferably, the fire extinguishing system comprises a dry powder storage tank, a powder conveying pipeline and a dry powder spray head, wherein the dry powder storage tank is provided with a plurality of dry powder storage tanks, and the plurality of dry powder storage tanks are arranged at the bottom of the tunnel at intervals along the longitudinal direction of the tunnel; the plurality of dry powder storage boxes are connected with the powder conveying pipeline; and a plurality of dry powder spray heads are uniformly distributed on the powder conveying pipeline along the axial direction of the powder conveying pipeline, and the dry powder spray heads are in control connection with the control host.
Preferably, the dry powder nozzle comprises a dry powder nozzle body, a jet power device, a main nozzle and an auxiliary nozzle, wherein the dry powder nozzle body is of a cylindrical structure, a central through hole is formed in the cylindrical structure, the central through hole is the main nozzle, the auxiliary nozzle is formed in the end part, close to the main nozzle, of the cylindrical structure, and the auxiliary nozzle is formed in the radial direction of the cylindrical structure; and a powder inlet of the dry powder spray head is provided with a spray power device, and the spray power device is electrically connected with the control host.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a pair of tunnel fire alarm and fire extinguishing system, detection optical cable are located the tunnel top and arrange along the whole line, carry out real-time supervision to the temperature in the tunnel, and the temperature measurement host computer turns into temperature information transmission with the signal conversion that detection optical cable surveyed and gives the main control system. When the temperature of a certain place exceeds the fire hazard warning value, the control host judges that the place is in fire and immediately starts an alarm, smoke removal and fire extinguishing system; when smoke abatement system and fire extinguishing system start, the smoke abatement mouth that sets up around the conflagration emergence department is all opened and is carried out the smoke abatement and handle to dry powder shower nozzle in the same scope also begins to carry out dry powder and puts out a fire and handle. When the temperature in the tunnel is reduced to be lower than the warning value, the control host judges that the fire is extinguished, and then the alarm, smoke removal and fire extinguishing system is closed. The utility model discloses degree of automation is high, can carry out rapid accurate fire extinguishing treatment to conflagration in the tunnel to personnel's the security of the lives and property in the at utmost assurance tunnel.
Drawings
Fig. 1 is a flow chart of a system to which the present invention relates;
fig. 2 is a system layout diagram to which the present invention relates;
fig. 3 is a schematic structural diagram of an alarm system according to the present invention;
FIG. 4 is a schematic structural view of a smoke abatement system according to the present invention;
FIG. 5 is a schematic view of the smoke evacuation hole structure according to the present invention;
fig. 6 is a schematic view of a fire suppression system according to the present invention;
FIG. 7 is a front view of a dry powder sprayhead according to the present invention;
FIG. 8 is a top view of a dry powder sprayhead in accordance with the present invention;
the fire extinguishing system comprises a detection optical cable 1, a temperature measuring host 3, a control host 4, an alarm system 5, a smoke removing system 6, a fire extinguishing system 7, a control cable 401, a fire alarm 501, a smoke removing port 5011, a smoke baffle plate 502, an air suction pipeline 503, an exhaust fan 601, a dry powder storage 602, a dry powder spray head 603, a powder conveying pipeline 6021, an injection power device 6022, a main nozzle 6023 and an auxiliary nozzle.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 8, the utility model provides a pair of tunnel fire alarm and fire extinguishing system, this tunnel fire alarm and fire extinguishing system arrange in the both sides in tunnel along the longitudinal direction in tunnel, specifically include temperature measurement system, control system, alarm system, smoke abatement system and fire extinguishing system, and wherein, temperature measurement system, alarm system, smoke abatement system and fire extinguishing system all are connected with control system.
The temperature measurement system is used for collecting the temperature peak value in the tunnel and transmitting the collected temperature peak value to the temperature measurement host machine 2.
The temperature measurement host 2 is used for judging the position of the temperature abnormal point according to the received temperature peak value and transmitting the temperature peak value to the control host 3.
The control host 3 is used for comparing the received temperature peak value with a preset threshold value, and when the received temperature peak value is larger than the preset threshold value, the control host 3 controls the alarm system 4, the smoke removal system and the fire extinguishing system to start.
The alarm system 4 is used to make an alarm call and trigger an alarm.
The smoke removal system is used for extracting smoke in the tunnel.
The fire extinguishing system is used for automatically extinguishing fire at a fire point.
The temperature measurement system comprises a detection optical cable 1, wherein the detection optical cable 1 adopts a LIOS detection optical cable with 50/125 mu m multimode optical fiber inside.
The detection optical cable 1 is wrapped with a low-smoke halogen-free flame-retardant thermoplastic material with good thermal conductivity and corrosion resistance.
The detection cable 1 is arranged at the top of the tunnel in the longitudinal direction of the tunnel.
The detection optical cable 1 is connected with the temperature measurement host 2.
The temperature measurement host 2 adopts an EN, SURE host-distributed optical fiber temperature measurement system.
The alarm system 4 comprises an alarm 401 and an automatic alarm system, wherein the alarm 401 and the automatic alarm system are both connected with the control host 3.
The alarm 401 is provided in plurality, and the plurality of alarms 401 are arranged at intervals in the bottom of the tunnel in the longitudinal direction of the tunnel.
The distance between two adjacent alarm devices 401 is 50 m.
The automatic alarm system is directly connected with the fire station in a butt joint mode, so that fire can be reported in time, and the realization of the technology is solved by the prior art.
The smoke abatement system 5 comprises an exhaust fan 503 and an exhaust duct 502, wherein the exhaust duct 502 is arranged at the top of the tunnel along the longitudinal direction of the tunnel, and the exhaust fan 503 is connected with one end of the exhaust duct 502 and is arranged at the tunnel opening.
A plurality of smoke removing holes 501 are arranged on the air draft pipeline 502 at intervals along the axial direction.
A smoke baffle 5011 is arranged at the air inlet of the smoke removing hole 501.
The control host 3 controls the small-sized motor at each smoke barrier through the control cable 7 to control the smoke barrier 501 to open and close.
Meanwhile, the control host 3 is electrically connected with the exhaust fan 503 to realize automatic opening of the exhaust fan 503.
The fire extinguishing system 6 comprises a dry powder storage tank 601, a powder conveying pipeline 603 and a dry powder spray head 602, wherein the dry powder storage tank 601 is provided with a plurality of dry powder storage tanks 601, and the plurality of dry powder storage tanks 601 are arranged at the bottom of the tunnel at intervals along the longitudinal direction of the tunnel.
A plurality of dry powder storage tanks 601 are connected to the powder delivery pipe 603.
A plurality of dry powder nozzles 602 are uniformly distributed on the powder conveying pipe 603 along the axial direction.
The spacing between two adjacent dry powder spray heads 602 is 10 m.
The spacing between two adjacent dry powder storage tanks 601 is 50 m.
The powder conveying pipeline 603 is divided into a vertical powder conveying pipeline and a horizontal powder conveying pipeline, and the horizontal powder conveying pipeline is connected with each dry powder spray nozzle 602 in series and is connected with the dry powder storage tank 601 through the vertical powder conveying pipeline.
The dry powder spray head 602 comprises a dry powder spray head body, a spray power device 6021, a main nozzle 6022 and an auxiliary nozzle 6023, wherein the dry powder spray head body is of a cylindrical structure, a central through hole is formed in the cylindrical structure, the central through hole is the main nozzle 6022, the auxiliary nozzle 6023 is formed in the end part, close to the main nozzle 6022, of the cylindrical structure, and the auxiliary nozzle 6023 is formed in the radial direction of the cylindrical structure.
The powder inlet of the dry powder spray head 602 is provided with a spray power device 6021, and the spray power device 6021 is electrically connected with the control host 3.
The jet power device adopts an AEGIS (gaspin) jet.
The utility model discloses a theory of operation is:
when a fire disaster happens in the tunnel, the temperature peak value and the accurate fire disaster occurrence position in the tunnel are accurately sensed through the detection optical cable 1, then the information is converted and transmitted to the control host 3 through the temperature measurement host 2, and the control host 3 automatically starts the alarm system, the smoke removal system and the fire extinguishing system when the temperature peak value is higher than the set fire early warning temperature of 60 ℃.
The smoke removing opening 501 and the fire extinguishing dry powder spray head 602 in 50m before and after the position of the temperature peak are started, and the alarm system 4 is triggered on the whole tunnel line and the fire condition is informed to the fire station.
The system can carry out emergency fire extinguishing and smoke removing treatment on fire in the tunnel in the shortest time, and the life and property safety of personnel in the tunnel is ensured to the maximum extent.
The utility model discloses tunnel fire alarm and fire extinguishing systems's concrete operating procedure does:
1, data acquisition: the detection optical cable 1 is arranged along the whole length of the top of the tunnel and is wrapped by ceramic with good heat conductivity, so that the internal temperature of the tunnel can be sensed, and temperature data can be acquired
2, data processing: information signals measured by the detection optical cable 1 are transmitted to the temperature measurement host machine 2 through the cable, and the temperature measurement host machine 2 processes and converts the received information into specific temperature and temperature peak position information.
And 3, data judgment: the specific temperature information and the temperature peak position information which are converted by the temperature measurement host 2 are transmitted to the control host 3, the control host 3 judges the measured temperature, when the measured temperature exceeds the set fire early warning temperature by 60 ℃, the control host 3 judges that the temperature peak position is a fire position, and immediately starts an alarm, smoke removal and fire extinguishing system near the position.
4, alarming, smoke removing and fire extinguishing:
4-1 when the control host 3 starts the alarm system 4, all the fire alarms in the whole tunnel line range are started to warn the persons in the tunnel to evacuate safely, and the persons automatically contact the nearby fire stations to carry out subsequent fire extinguishing treatment.
4-2 when the control host 3 starts the smoke abatement system 5, the automatic opening and closing smoke abatement port 501 in each 50m around the fire is opened, the exhaust fan outside the tunnel is started to perform smoke abatement treatment near the fire, and the danger of dense smoke to the safety of people in the tunnel is avoided.
4-3 when the control host 3 starts the fire extinguishing system 6, the fire extinguishing dry powder nozzles 601 in 50m before and after the fire are started and dry powder is sprayed on the fire.
5, closing the system: the temperature measurement system constantly transmits the temperature in the tunnel to the control host 3, and when the temperature in the tunnel drops below the fire early warning value, the control host automatically closes the alarm, smoke removal and fire extinguishing system.
The above description is further detailed with reference to specific embodiments of the method of the present invention, and it should not be construed that the method of the present invention is limited thereto. For those skilled in the art to which the invention pertains, equivalent substitutes or obvious modifications may be made without departing from the spirit of the invention, and the same properties or uses are deemed to be within the scope of the invention as determined by the claims as filed.
Claims (7)
1. A tunnel fire alarm and fire extinguishing system is characterized in that the tunnel fire alarm and fire extinguishing system is arranged on two sides of a tunnel along the longitudinal direction of the tunnel, and specifically comprises a temperature measuring system, a control system, an alarm system, a smoke removing system and a fire extinguishing system, wherein the temperature measuring system, the alarm system, the smoke removing system and the fire extinguishing system are all connected with the control system;
the temperature measurement system is used for collecting the temperature peak value in the tunnel and transmitting the collected temperature peak value to the temperature measurement host (2);
the temperature measurement host (2) is used for judging the position of a temperature abnormal point according to the received temperature peak value and transmitting the temperature peak value to the control host (3);
the control host (3) is used for comparing the received temperature peak value with a preset threshold value, and when the received temperature peak value is larger than the preset threshold value, the control host (3) controls the alarm system (4), the smoke removal system and the fire extinguishing system to be started.
2. A tunnel fire alarm and fire extinguishing system according to claim 1, wherein the temperature measuring system comprises a detection cable (1), said detection cable (1) being wrapped with a thermoplastic material.
3. A tunnel fire alarm and extinguishing system according to claim 2, wherein the detection cable (1) is arranged at the top of the tunnel in the longitudinal direction of the tunnel; the detection optical cable (1) is connected with the temperature measurement host (2).
4. A tunnel fire alarm and extinguishing system according to claim 1, characterised in that the alarm system (4) comprises an alarm (401), wherein the alarm (401) is electrically connected to the control host (3); the alarm devices (401) are provided in plurality, and the plurality of alarm devices (401) are arranged at intervals at the bottom of the tunnel along the longitudinal direction of the tunnel.
5. A tunnel fire alarm and fire extinguishing system according to claim 1, characterised in that the smoke removing system (5) comprises an exhaust fan (503) and an exhaust duct (502), wherein the exhaust duct (502) is arranged at the top of the tunnel in the longitudinal direction of the tunnel, and the exhaust fan (503) is connected to one end of the exhaust duct (502) and is placed at the tunnel opening; a plurality of smoke removing holes (501) are arranged on the air draft pipeline (502) at intervals along the axial direction of the air draft pipeline; remove the air inlet department of cigarette hole (501) and install and keep off cigarette board (5011), keep off cigarette board (5011) and be connected with driving motor, driving motor and air exhauster (503) all are connected with main control system (3) electricity.
6. A tunnel fire alarm and fire extinguishing system according to claim 1, wherein the fire extinguishing system (6) comprises a dry powder storage tank (601), a powder conveying pipeline (603) and a dry powder spray head (602), wherein the dry powder storage tank (601) is provided with a plurality of dry powder storage tanks (601), and the plurality of dry powder storage tanks (601) are arranged at the bottom of the tunnel at intervals along the longitudinal direction of the tunnel; a plurality of dry powder storage boxes (601) are connected with the powder conveying pipeline (603); a plurality of dry powder spray heads (602) are uniformly distributed on the powder conveying pipeline (603) along the axial direction of the powder conveying pipeline, and the dry powder spray heads (602) are in control connection with the control host (3).
7. A tunnel fire alarm and fire extinguishing system according to claim 6, characterized in that the dry powder nozzle (602) comprises a dry powder nozzle body, a jet power device (6021), a main nozzle (6022) and an auxiliary nozzle (6023), wherein the dry powder nozzle body is of a cylindrical structure, a central through hole is formed in the cylindrical structure, the central through hole is the main nozzle (6022), the auxiliary nozzle (6023) is formed in the cylindrical structure at the end part close to the main nozzle (6022), and the auxiliary nozzle (6023) is formed in the radial direction of the cylindrical structure; and a powder inlet of the dry powder spray head (602) is provided with a spray power device (6021), and the spray power device (6021) is electrically connected with the control host (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922101746.2U CN211454756U (en) | 2019-11-28 | 2019-11-28 | Tunnel fire alarm and fire extinguishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922101746.2U CN211454756U (en) | 2019-11-28 | 2019-11-28 | Tunnel fire alarm and fire extinguishing system |
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| Publication Number | Publication Date |
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| CN211454756U true CN211454756U (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922101746.2U Expired - Fee Related CN211454756U (en) | 2019-11-28 | 2019-11-28 | Tunnel fire alarm and fire extinguishing system |
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| CN (1) | CN211454756U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112678763A (en) * | 2020-12-02 | 2021-04-20 | 中国联合网络通信集团有限公司 | Safe oil supply system and method |
| CN114202873A (en) * | 2021-11-30 | 2022-03-18 | 广州地铁设计研究院股份有限公司 | Fire-fighting linkage method and computer equipment for non-excavation type comprehensive pipe gallery |
| CN114470555A (en) * | 2021-12-22 | 2022-05-13 | 交通运输部公路科学研究所 | Intelligent automatic monitoring fire extinguishing and smoke discharging device and method for highway tunnel |
| CN116899159A (en) * | 2023-09-12 | 2023-10-20 | 西南交通大学 | Construction management system of high-altitude super-long tunnel based on GIS and BIM |
-
2019
- 2019-11-28 CN CN201922101746.2U patent/CN211454756U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112678763A (en) * | 2020-12-02 | 2021-04-20 | 中国联合网络通信集团有限公司 | Safe oil supply system and method |
| CN114202873A (en) * | 2021-11-30 | 2022-03-18 | 广州地铁设计研究院股份有限公司 | Fire-fighting linkage method and computer equipment for non-excavation type comprehensive pipe gallery |
| CN114470555A (en) * | 2021-12-22 | 2022-05-13 | 交通运输部公路科学研究所 | Intelligent automatic monitoring fire extinguishing and smoke discharging device and method for highway tunnel |
| CN114470555B (en) * | 2021-12-22 | 2023-03-14 | 交通运输部公路科学研究所 | Intelligent automatic monitoring fire extinguishing and smoke discharging device and method for highway tunnel |
| CN116899159A (en) * | 2023-09-12 | 2023-10-20 | 西南交通大学 | Construction management system of high-altitude super-long tunnel based on GIS and BIM |
| CN116899159B (en) * | 2023-09-12 | 2023-11-21 | 西南交通大学 | Construction management system of high-altitude extra-long tunnel based on GIS and BIM |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200908 Termination date: 20211128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |