Fireproof system for tunnel construction
By installing distributed fire early warning modules and folding roller shutters inside the tunnel, combined with high-pressure water nozzles and control modules, rapid monitoring, isolation, and extinguishing of tunnel fires were achieved, solving the problem of fire spread in tunnels and ensuring tunnel construction safety.
Patent Information
- Application Number
- CN202422756980.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-12
AI Technical Summary
Tunnel fires spread rapidly, threatening tunnel structures and personnel safety, and existing technologies are insufficient for effective prevention and control.
Distributed fire early warning modules and folding roller shutters are installed inside the tunnel, combined with high-pressure water pipes and sprinklers. Fire monitoring, isolation and extinguishing are achieved through a control module. Smoke, temperature and air quality sensors are used to improve the accuracy of fire detection. A drive motor drives the roller shutter to isolate the fire source.
It improves the coverage and accuracy of fire detection, quickly isolates fire sources, ensures tunnel construction safety, provides intelligent fire extinguishing methods, and reduces the damage of fire to tunnel structures.
Smart Images

Figure CN223536408U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tunnel construction technology, and in particular to a fire prevention system for tunnel construction. Background Technology
[0002] Fire prevention is a key technology for ensuring the safe operation of tunnels during construction. Due to the long, narrow, and relatively enclosed nature of tunnels, a fire can spread rapidly, posing a significant threat to the tunnel structure and personnel safety. Therefore, developing effective tunnel fire prevention technologies is crucial for ensuring the safe operation of tunnels. Utility Model Content
[0003] The main purpose of this invention is to propose a fire prevention system for tunnel construction, which aims to effectively prevent the spread of fire.
[0004] To achieve the above objectives, this utility model proposes a tunnel construction fire prevention system for use in tunnel engineering. The tunnel extends from the entrance to the working face, and the tunnel construction fire prevention system includes:
[0005] A data acquisition component, comprising multiple fire early warning modules, wherein the multiple fire early warning modules are spaced apart within the tunnel along the extension direction of the tunnel;
[0006] An isolation assembly, comprising multiple folding roller shutters spaced apart within the tunnel, wherein the multiple folding roller shutters and multiple fire warning modules are alternately arranged; and
[0007] The control module, multiple fire warning modules, and multiple folding roller shutters are all communicatively connected to the control module;
[0008] The folding roller shutter door has a folded state and an unfolded state, and the control module is used to control the folding roller shutter door to switch between the folded state and the unfolded state.
[0009] In one embodiment, the tunnel construction fire prevention system further includes a high-pressure water pipe and multiple nozzles. The high-pressure water pipe extends along the extension direction of the tunnel, and the multiple nozzles are all connected to the high-pressure water pipe. The multiple nozzles are spaced apart in the tunnel along the extension direction of the tunnel, and the multiple nozzles are communicatively connected to the control module.
[0010] In one embodiment, at least two nozzles are provided between any two adjacent folding roller shutter doors.
[0011] In one embodiment, the fire warning module includes a smoke sensor and a temperature sensor, both of which are communicatively connected to the control module.
[0012] In one embodiment, the fire warning module further includes an air quality sensor, which is communicatively connected to the control module.
[0013] In one embodiment, the tunnel construction fire prevention system further includes multiple fire alarms, which are spaced apart in the tunnel. Each fire alarm is located close to a fire warning module, and all fire alarms are communicatively connected to the control module.
[0014] In one embodiment, the folding roller shutter door includes a roller, a drive motor, and a fireproof roller shutter. The roller is rotatably disposed within the tunnel, and the fireproof roller shutter is connected to the roller via a steel wire rope. The drive motor is used to drive the roller to rotate, and the drive motor is communicatively connected to the control module.
[0015] In one embodiment, the drive motor drives the drum to rotate via gears.
[0016] In this invention, the fire early warning module can monitor the fire risk within the tunnel in real time. Multiple fire early warning modules are spaced apart along the tunnel's extension direction. This distributed layout improves the coverage and accuracy of fire detection, facilitating timely fire detection. The folding roller shutters are typically in a folded state, not affecting normal tunnel use or construction operations. The control module can switch the folding roller shutters between folded and unfolded states. When one fire early warning module detects a fire, the control module can unfold the two folding roller shutters on either side of that module, creating an isolation zone that effectively prevents the fire from spreading and provides a safer and more reliable guarantee during tunnel construction. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0018] Figure 1 A schematic diagram of a structure of an embodiment of the tunnel construction fire prevention system provided by this utility model;
[0019] Figure 2 A schematic diagram of a folding roller shutter door in its folded state;
[0020] Figure 3 This is a schematic diagram of a folding roller shutter door in its unfolded state.
[0021] Explanation of icon numbers:
[0022] 100. Tunnel construction fire prevention system; 1. Fire early warning module; 2. Folding roller shutter door; 21. Roller; 22. Drive motor; 23. Fireproof roller shutter; 3. Control module; 4. High-pressure water pipe; 5. Sprinkler head; 6. Fire alarm.
[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0027] This utility model proposes a tunnel construction fire prevention system 100 for use in tunnel engineering, wherein the tunnel extends from the entrance to the working face.
[0028] Please see Figures 1 to 3In one embodiment of this utility model, the tunnel construction fire prevention system 100 includes a data acquisition component, an isolation component, and a control module 3. The data acquisition component includes multiple fire early warning modules 1, which are spaced apart within the tunnel along the tunnel's extension direction. The isolation component includes multiple folding roller shutters 2, which are spaced apart within the tunnel and are interleaved with the fire early warning modules 1. Both the fire early warning modules 1 and the folding roller shutters 2 are communicatively connected to the control module 3. The folding roller shutters 2 have a folded state and an unfolded state, and the control module 3 controls the switching of the folding roller shutters 2 between the folded and unfolded states.
[0029] The tunnel face is the working face that continuously advances during tunnel excavation, specifically the face at the deepest point of the tunnel. Any two adjacent folding roller shutter doors 2 form an isolation zone, and each isolation zone is equipped with a fire early warning module 1.
[0030] In the technical solution of this utility model, the fire early warning module 1 can monitor the fire risk in the tunnel in real time. Multiple fire early warning modules 1 are spaced apart along the extension direction of the tunnel. This distributed layout improves the coverage and accuracy of fire detection, helping to detect fires in a timely manner. The folding roller shutter door 2 is usually in a folded state, which does not affect the normal use and construction operations of the tunnel. The control module 3 can control the folding roller shutter door 2 to switch between the folded state and the unfolded state. When one of the fire early warning modules 1 detects a fire, the control module 3 can control the two folding roller shutter doors 2 on both sides of this fire early warning module 1 to enter the unfolded state, thereby forming an isolation zone, which can effectively prevent the spread of fire and provide a safer and more reliable guarantee for the tunnel construction process.
[0031] To enhance fire suppression, please refer to one embodiment of this utility model. Figures 1 to 3 The tunnel construction fire prevention system 100 also includes a high-pressure water pipe 4 and multiple sprinklers 5. The high-pressure water pipe 4 extends along the tunnel's extension direction, and the multiple sprinklers 5 are all connected to the high-pressure water pipe 4. The multiple sprinklers 5 are spaced apart within the tunnel along the tunnel's extension direction, and all multiple sprinklers 5 are communicatively connected to the control module 3. The arrangement of the high-pressure water pipe 4 and sprinklers 5 provides a direct means of fire suppression. The high-pressure water flow through the sprinklers 5 can quickly reach the fire source, effectively controlling and extinguishing initial fires and reducing damage to the tunnel structure. The spaced arrangement of the sprinklers 5 along the tunnel's extension direction ensures a wide fire suppression coverage area. This layout allows for rapid response to fires in different areas, improving fire suppression efficiency. The communication connection between the sprinklers 5 and the control module 3 enables remote control of fire suppression operations, achieving intelligent management. The control module 3 can automatically activate or adjust the working status of the sprinklers 5 based on data provided by the fire warning module 1, achieving precise fire suppression.
[0032] Furthermore, in one embodiment of this utility model, please refer to... Figure 1 At least two sprinkler heads 5 are provided between any two adjacent folding roller shutter doors 2, that is, at least two sprinkler heads 5 are provided in any isolation area. This ensures that there is enough water flow to cover the fire source when a fire occurs in the isolation area, thereby improving the efficiency and effectiveness of fire extinguishing.
[0033] Specifically, in one embodiment of this invention, the fire early warning module 1 includes a smoke sensor and a temperature sensor, both of which are communicatively connected to the control module 3. By combining the smoke sensor and the temperature sensor, the system can monitor fire signs from two different perspectives, improving the accuracy and reliability of fire detection. The smoke sensor can detect minute changes in smoke in the early stages of a fire, while the temperature sensor can sense abnormal increases in ambient temperature. The combined use of both allows for earlier identification of fire risks. Furthermore, the combination of the smoke sensor and the temperature sensor can adapt to different fire types and environmental conditions, improving the system's adaptability and flexibility.
[0034] Furthermore, in one embodiment of this utility model, the fire early warning module 1 also includes an air quality sensor, which is communicatively connected to the control module 3. The air quality sensor can monitor the concentration of harmful gases in the tunnel, such as carbon monoxide (CO), carbon dioxide (CO2), and other volatile organic compounds, providing more comprehensive fire and environmental safety monitoring. The air quality sensor can monitor the air environment inside the tunnel, assess the health risks to construction workers and users, and take timely measures to ensure personnel safety.
[0035] To improve response speed, please refer to one embodiment of this utility model. Figure 1 The tunnel construction fire prevention system 100 also includes multiple fire alarms 6, which are spaced apart inside the tunnel. Each fire alarm 6 is located near a fire warning module 1, and all fire alarms 6 are communicatively connected to the control module 3. The fire alarms 6 can provide audible and / or visual alarms, enabling personnel inside the tunnel to quickly detect the emergency in the event of a fire, thus improving the speed of emergency response.
[0036] Specifically, in one embodiment of this utility model, please refer to Figure 3The folding roller shutter door 2 includes a roller 21, a drive motor 22, and a fireproof roller shutter 23. The roller 21 is installed rotating inside the tunnel. The fireproof roller shutter 23 is connected to the roller 21 via a steel wire rope. The drive motor 22 drives the roller 21 to rotate and is communicatively connected to the control module 3. The drive motor 22 can quickly drive the roller 21 to rotate, thereby controlling the raising and lowering of the fireproof roller shutter 23 to achieve rapid isolation of the fire area. The mechanical transmission method of connecting the fireproof roller shutter 23 to the roller 21 via the steel wire rope is simple and reliable, reducing the risk of the roller shutter door becoming inoperable due to electronic system failure. The communication connection between the drive motor 22 and the control module 3 allows for remote control of the opening and closing of the roller shutter door, improving the convenience and safety of operation.
[0037] Furthermore, in one embodiment of this invention, the drive motor 22 drives the drum 21 to rotate via gears. Gear transmission provides efficient power transmission, ensuring that the torque of the drive motor 22 can be fully converted into the rotational force of the drum 21, achieving fast and stable operation of the roller shutter door. The gear transmission structure is relatively durable and can maintain performance under high load and frequent operation conditions, making it suitable for environments requiring high reliability, such as tunnels.
[0038] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A fire prevention system for tunnel construction, used in tunnel engineering, wherein the tunnel extends from the entrance to the working face, characterized in that, The tunnel construction fire prevention system includes: A data acquisition component, comprising multiple fire early warning modules, wherein the multiple fire early warning modules are spaced apart within the tunnel along the extension direction of the tunnel; An isolation assembly, comprising multiple folding roller shutters spaced apart within the tunnel, wherein the multiple folding roller shutters and multiple fire warning modules are alternately arranged; and The control module, multiple fire warning modules, and multiple folding roller shutters are all communicatively connected to the control module; The folding roller shutter door has a folded state and an unfolded state, and the control module is used to control the folding roller shutter door to switch between the folded state and the unfolded state.
2. The tunnel construction fire prevention system as described in claim 1, characterized in that, The tunnel construction fire prevention system also includes a high-pressure water pipe and multiple nozzles. The high-pressure water pipe extends along the extension direction of the tunnel, and the multiple nozzles are all connected to the high-pressure water pipe. The multiple nozzles are spaced apart in the tunnel along the extension direction of the tunnel, and the multiple nozzles are all communicatively connected to the control module.
3. The tunnel construction fire prevention system as described in claim 2, characterized in that, At least two nozzles are provided between any two adjacent folding roller shutter doors.
4. The tunnel construction fire prevention system as described in claim 1, characterized in that, The fire early warning module includes a smoke sensor and a temperature sensor, both of which are communicatively connected to the control module.
5. The tunnel construction fire prevention system as described in claim 4, characterized in that, The fire early warning module also includes an air quality sensor, which is communicatively connected to the control module.
6. The tunnel construction fire prevention system as described in claim 1, characterized in that, The tunnel construction fire prevention system also includes multiple fire alarms, which are spaced apart inside the tunnel. Each fire alarm is located close to a fire warning module, and all fire alarms are communicatively connected to the control module.
7. The tunnel construction fire prevention system as described in claim 1, characterized in that, The folding roller shutter door includes a roller, a drive motor, and a fireproof roller shutter. The roller is rotatably installed inside the tunnel. The fireproof roller shutter is connected to the roller via a steel wire rope. The drive motor is used to drive the roller to rotate and is communicatively connected to the control module.
8. The tunnel construction fire prevention system as described in claim 7, characterized in that, The drive motor drives the drum to rotate via gears.