Air-water curtain flexible partition intelligent control system and control method

Abstract

The invention relates to the field of tunnel fire prevention and control, and particularly discloses a gas-water curtain flexible partition intelligent control system and method, and the system comprises a water curtain generation device, a gas curtain generation device, a fire detection alarm, a personnel detection sensor, and a controller. The air curtain generation devices are arranged between the water curtain generation devices, air-water curtain flexible partitions are formed on the two sides of the smoke control subareas, and the controller is electrically connected with the water curtain generation devices, the air curtain generation devices, the fire detection alarm and the personnel detection sensor. The controller controls the water curtain generation device and the air curtain generation device based on information of the fire detection alarm and the personnel detection sensor so as to adjust the flow of the water curtain electric control spray head and the flow of the air curtain electric control spray head. According to the invention, the information of the fire detection alarm is combined with the data of the personnel detection sensor, so that the dynamic comprehensive response to the fire and personnel in the tunnel is realized, the safety performance of the tunnel is improved, and the flexibility and effectiveness of coping with emergency situations are also improved.

Description

Technical Field

[0001] This application belongs to the technical field of prevention and control of tunnel fires, and specifically relates to a gas-water curtain flexible partition intelligent control system and control method. Background Art

[0002] Road tunnels and highway tunnels are key components of urban three-dimensional transportation, playing an important role in saving urban traffic space, alleviating traffic pressure, and shortening intercity distances. In current tunnel safety technologies, water curtain systems are widely used to isolate smoke and flames, reduce the damage caused by fires, and provide a safe evacuation environment for personnel. These systems are usually implemented by installing water spraying devices in tunnels, which are automatically activated when a fire is detected, forming a water curtain barrier to effectively isolate the spread of smoke and flames.

[0003] However, existing water curtain technologies have certain limitations in practical applications. First, while traditional water curtain systems isolate smoke, they may also obstruct the line of sight and movement of personnel, especially in the case of emergency evacuation. Second, when personnel attempt to escape through the water curtain, the strong water flow may cause panic and falls, further increasing the risks during the evacuation process. Therefore, there is an urgent need to develop a more intelligent and flexible water curtain system. Summary of the Invention

[0004] Aiming at the above defects or requirements for improvement in the prior art solutions, the purpose of the present invention is to provide a gas-water curtain flexible partition intelligent control system and control method, which can not only effectively isolate smoke, but also reduce the impact on personnel during emergency evacuation and increase the possibility of safe evacuation.

[0005] To achieve the above purpose, the technical solution of the present invention is as follows: A gas-water curtain flexible partition intelligent control system for a smoke control zone in a tunnel, comprising:

[0006] A water curtain generating device for generating a water curtain, and a plurality of water curtain electrically controlled nozzles are uniformly arranged on the water curtain generating device;

[0007] A gas curtain generating device for generating a gas curtain, and a plurality of gas curtain electrically controlled nozzles are uniformly arranged on the gas curtain generating device. The gas curtain generating device is arranged between the water curtain generating devices, and a gas-water curtain flexible partition is formed on both sides of the smoke control zone;

[0008] A fire detection alarm for detecting the occurrence of fires in several smoke control zones in the tunnel;

[0009] A personnel detection sensor arranged on the water curtain generating device for detecting whether there are personnel passing through;

[0010] A controller, electrically connected to the water curtain generating device, the air curtain generating device, the fire detection alarm, and the personnel detection sensor. The controller controls the water curtain generating device and the air curtain generating device based on the information from the fire detection alarm and the personnel detection sensor to adjust the flow rates of the water curtain electrically controlled nozzles and the air curtain electrically controlled nozzles.

[0011] Preferably, there are three rows of water curtains, and the distance between the water curtains is 2 - 4 meters. The air curtain is clamped between the water curtains, and the distance between the electrically controlled nozzles is 2 - 3 meters.

[0012] Preferably, the personnel detection sensor is an infrared sensor, which is used to detect the passing position of personnel within the coverage area of the water curtain.

[0013] Preferably, the infrared sensor includes an information transmission unit, and the information transmission unit sends the passing position information of personnel to the controller.

[0014] Preferably, the controller includes a driving unit. The driving unit can independently control the flow rate of each electrically controlled nozzle. The controller controls the driving unit to act based on the passing position information of personnel, thereby adjusting the flow rate of each electrically controlled nozzle.

[0015] The present invention also discloses a control method based on the above air - water curtain flexible partition intelligent control system, including the following steps:

[0016] S1. When the fire detection alarm detects a fire in a certain smoke - control zone in the tunnel, the controller sends a control signal to the driving unit;

[0017] S2. The driving unit acts, and the electrically controlled nozzles of the water curtain generating device and the air curtain generating device start to work to form a water curtain and an air curtain;

[0018] S3: When the personnel detection sensor detects that there is a person passing by, obtain the passing position information of the person and send it to the controller;

[0019] S4: After the controller receives the passing position information of the person, correspond to the corresponding water curtain electrically controlled nozzles of the water curtain generating device. By controlling the driving unit to act, reduce the flow rate of this water curtain electrically controlled nozzle or temporarily shut down this electrically controlled nozzle. At the same time, increase the flow rate of all air curtain electrically controlled nozzles.

[0020] Preferably, the controller stores the spraying ranges covered by each water curtain electrically controlled nozzle. When the passing position of the person belongs to this spraying range, the corresponding water curtain electrically controlled nozzle reduces the flow rate of this electrically controlled nozzle or temporarily shuts down this electrically controlled nozzle.

[0021] Preferably, it further includes step S5. When after the person has passed by and within a preset time interval, the personnel detection sensor does not detect that a person has passed by, the corresponding water curtain electrically controlled nozzle resumes the initial flow rate.

[0022] Preferably, the preset interval time is 3 - 5 seconds.

[0023] Preferably, step S1 further includes that after the fire detection alarm detects a fire, it broadcasts escape information by voice.

[0024] The present invention provides an intelligent control system and control method for a gas - water curtain flexible partition in a tunnel smoke control zone. The core of the present invention lies in its combination of the functions of a water curtain and a gas curtain, and through intelligent control technology, it realizes effective smoke isolation in case of a fire and guidance and protection for personnel evacuation in case of an emergency. When it detects that a person passes through, the controller adjusts the water curtain electric control nozzles at the corresponding position, reducing or closing the water curtain flow in this area, thereby reducing the impact on the evacuating personnel. At the same time, in order to compensate for the possible weakening of the smoke isolation effect due to the reduction of the water curtain, the controller increases the flow of the gas curtain electric control nozzles to maintain an effective smoke control function. Through intelligent control, this control system not only ensures the smoke isolation effect during a fire but also improves the safety evacuation efficiency of personnel in case of an emergency, significantly enhancing the tunnel safety performance.

[0025] The beneficial effects of the present invention are as follows:

[0026] (1) The present invention combines a water curtain and a gas curtain to form a more efficient smoke control partition system. In this system, when the flow of the water curtain decreases due to the need to form an evacuation passage, the electric control nozzles of the gas curtain generating device will increase the flow to make up for the possible reduction in the smoke isolation effect due to the decrease in the water curtain. This flexible adjustment mechanism not only maintains the smoke isolation effect but also provides necessary space for emergency evacuation, optimizing the safety management in the tunnel.

[0027] (2) Through the personnel detection sensor installed on the water curtain generating device, the system can detect and accurately determine the passing position of personnel in real - time. Based on this information, the controller adjusts the corresponding water curtain electric control nozzles, reducing or temporarily closing the water curtain flow in a specific area, thereby providing a clear evacuation path for personnel. This design not only greatly reduces the risk of panic and falling caused by water curtain spraying for evacuating personnel but also improves the orderliness and efficiency of evacuation. At the same time, the system can automatically restore the initial flow of the water curtain after determining that no one passes through, maintaining the continuity of the smoke isolation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three - dimensional installation view of the gas curtain and water curtain shown in the embodiment of the present invention;

[0029] Figure 2 It is a schematic structural diagram of the intelligent control system of the present invention;

[0030] Figure 3This is the control flow chart of the intelligent control method of the present invention.

[0031] Description of reference numerals: 1 - water curtain generating device, 2 - air curtain generating device, 3 - fire detection alarm, 4 - personnel detection sensor, 5 - controller, 11 - water curtain electric control sprinkler, 21 - air curtain electric control sprinkler. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the present invention.

[0033] In addition, the described features, structures or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, many specific details are provided to give a full understanding of the embodiments of the present application. However, those skilled in the art will realize that the technical solutions of the present application can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, well-known methods, devices, implementations or operations are not shown or described in detail to avoid obscuring various aspects of the present application.

[0034] Please refer to Figure 1-2 , this embodiment provides an air-water curtain flexible partition intelligent control system for a smoke control zone in a tunnel. The system mainly includes a water curtain generating device 1, an air curtain generating device 2, a fire detection alarm 3, a personnel detection sensor 4, and a controller 5. The water curtain generating device 1 is designed to generate a water curtain in the tunnel. A plurality of water curtain electric control sprinklers 11 are evenly arranged on the device. These sprinklers can generate a continuous water curtain when needed to block the spread of smoke and fire. The air curtain generating device is designed to generate an air curtain and cooperate with the water curtain generating device. A plurality of air curtain electric control sprinklers 21 are also evenly arranged on the air curtain generating device 2. These sprinklers can generate a stable air flow. The air curtain generating device 2 is arranged between the water curtain generating devices 1 to form an air-water curtain flexible partition, so as to provide an effective barrier on both sides of the smoke control zone in the tunnel.

[0035] The fire detection alarm 3 is installed at key positions in the tunnel, such as on the tunnel wall, to detect the occurrence of a fire. Once a fire is detected, the device will immediately send a signal to the controller to trigger the activation of the water curtain and the air curtain. There are multiple personnel detection sensors 4. These sensors are arranged on the water curtain generating device 1 to detect whether there are personnel passing within the coverage of the water curtain. The sensors can transmit the personnel position information to the controller in real time.

[0036] The controller 5 is the core of the system and is electrically connected to the water curtain generating device 1, the air curtain generating device 2, the fire detection alarm 3, and the personnel detection sensor 4. Based on the information collected from the fire detection alarm 3 and the personnel detection sensor 4, the controller 5 intelligently regulates the operation of the water curtain and the air curtain. In particular, when a person is detected passing through, the controller 5 can adjust the flow rate of the corresponding water curtain electric control nozzle 11 to reduce or temporarily turn off the water curtain in that area, while increasing the flow rate of the air curtain electric control nozzle 21 to maintain an effective smoke isolation effect. Through this design, the air-water curtain flexible partition intelligent control system of the present invention can effectively isolate smoke in case of a fire, while facilitating emergency evacuation and ensuring the safety of tunnel users.

[0037] In some embodiments, the water curtain is designed to be arranged in three rows, and the distance between each row of the water curtain is 2 - 4 meters. Such a distance can not only effectively isolate smoke but also provide sufficient space for emergency evacuation. The distance between each electric control nozzle of the water curtain is 2 - 3 meters, ensuring the uniform distribution and effective coverage of the water curtain. At the same time, the air curtain is sandwiched between each row of the water curtain, forming a complete air-water curtain flexible partition system. This configuration allows the air curtain to enhance the smoke isolation effect when the flow rate of the water curtain is reduced, so as to maintain the overall safety partition efficiency.

[0038] In some embodiments, the personnel detection sensor 4 uses an infrared sensor. This sensor can accurately detect the passing position of personnel within the coverage area of the water curtain. When a person approaches the water curtain, it can sense that someone is about to pass through. This pre-perception ability allows the intelligent control system to take actions before the person reaches the water curtain, such as reducing the water flow or temporarily turning off the water curtain nozzles in a specific area, which is more directive and ensures that people can pass through the water curtain area smoothly. The infrared sensor includes an information transmission unit, which is responsible for real-time sending the detected passing position information of personnel to the controller. Such a configuration enables the system to respond in a timely manner to the dynamic position of personnel and provide real-time guidance for emergency evacuation.

[0039] The controller 5 includes a driving unit, which can independently control the flow rate of each electric control nozzle. When the controller receives the passing position information of personnel transmitted by the infrared sensor, it controls the driving unit to make corresponding actions based on this information, thereby adjusting the flow rate of each electric control nozzle. For example, if the sensor detects that a person is passing through a certain specific area, the controller can reduce or temporarily turn off the flow rate of the water curtain electric control nozzles in that area, while increasing the flow rate of the air curtain electric control nozzles, so as to facilitate the safe escape of personnel while maintaining the smoke isolation effect.

[0040] Refer to Figure 3Another embodiment of the present invention proposes a control method for an intelligent control system of an air-water curtain flexible partition for smoke control zoning in a tunnel, which is based on the intelligent control system described above. The control method includes the following key steps to ensure effective smoke isolation and safe evacuation of personnel in the event of a fire.

[0041] Step S1: When the fire detection alarm 3 detects a fire in a smoke control zone in the tunnel, the controller 5 immediately responds to it by sending a control signal to the drive unit to start the emergency response program.

[0042] Step S2: After receiving the signal from the controller 5, the driving unit activates the electrically controlled nozzles of the water curtain generating device 1 and the air curtain generating device 2, and these nozzles start to work to form a water curtain and an air curtain to isolate the smoke generated by the fire and prevent the spread of the flame.

[0043] Step S3: When the person detection sensor 4 detects that a person is passing, it will obtain the person's passing position information and send this information to the controller 5. This step ensures that the system can monitor the person's position and movement in real time.

[0044] Step S4: After receiving the passing position information of the personnel, the controller 5 immediately adjusts the corresponding water curtain electric-controlled nozzle 11. According to the position of the personnel, the controller adjusts the flow of the corresponding water curtain electric-controlled nozzle 11 through the driving unit, reduces the flow or temporarily closes the nozzle to facilitate the safe passage of the personnel. At the same time, in order to compensate for the reduced smoke isolation effect caused by the reduction of the water curtain, the controller increases the flow of all air curtain electric-controlled nozzles 21 to ensure the smoke isolation effect.

[0045] Through the above steps, the control method of the present invention can effectively isolate smoke in the event of a fire and provide a safe passage for personnel during emergency evacuation. The method not only improves the safety of the tunnel in the event of a fire, but also optimizes the safety and efficiency of personnel evacuation.

[0046] Furthermore, in the control method of some embodiments, the controller 5 stores the spray range information of each water curtain electric-controlled nozzle covering the entire tunnel. When the personnel detection sensor 4 detects that a person is passing, it will determine which nozzle's spray range the person is within. Based on this information, the controller adjusts the flow rate of the corresponding water curtain electric-controlled nozzle, reduces the flow rate or temporarily closes the nozzle to facilitate the safe passage of personnel.

[0047] To ensure the smoke separation effect and fire control, some embodiments also include an automatic recovery mechanism. After a person passes through, within a preset time interval (e.g., 3 - 5 seconds), if the person detection sensor 4 does not detect another person passing by again, the corresponding water curtain electric control sprinkler 11 will automatically return to the initial flow rate. This mechanism ensures that the smoke separation effect can be quickly restored after an emergency evacuation. The 3 - 5 - second time window takes into account the walking speeds of different people and potential congestion. This time range is sufficient for most people to safely pass through the specific area, while also considering possible delays or pauses.

[0048] In addition, in step S1, in addition to sending a control signal to the drive unit, when the fire detection alarm 3 detects a fire, the system will also activate the voice broadcast function, such as broadcasting an escape towards the direction of the water curtain. This function broadcasts emergency escape information and guidance to the people in the tunnel, helping them quickly and safely find the nearest safe exit. The addition of voice broadcast not only improves the reaction speed of people in an emergency but also enhances the humanization and effectiveness of the entire system.

[0049] In summary, by combining the information of the fire detection alarm with the data of the person detection sensor, the present invention realizes a comprehensive response to fires and the dynamics of people in the tunnel. This not only improves the safety performance of the tunnel but also enhances the flexibility and effectiveness in dealing with emergencies. Through intelligent control, the present invention provides an innovative solution for tunnel safety, effectively integrating the requirements of fire prevention and emergency evacuation.

[0050] The above - mentioned drawings are only schematic illustrations of the processes included in the method according to the exemplary embodiments of the present application, and not for limiting purposes. It is easy to understand that the processes shown in the above - mentioned drawings do not indicate or limit the chronological order of these processes. Additionally, it is also easy to understand that these processes can be executed, for example, synchronously or asynchronously in multiple modules.

[0051] It should be understood that the present application is not limited to the exact structure already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. An intelligent control system for air-water curtain flexible partitions, which is used for smoke control partitions in tunnels, characterized in that: include: A water curtain generating device (1) is used to generate a water curtain, wherein a plurality of water curtain electrically controlled nozzles (11) are evenly arranged on the water curtain generating device; An air curtain generating device (2) is used to generate an air curtain, a plurality of air curtain electric-controlled nozzles (21) are evenly arranged on the air curtain generating device, the air curtain generating device (2) is arranged between the water curtain generating devices (1), and air-water curtain flexible partitions are formed on both sides of the smoke control partition; Fire detection alarm (3), used to detect the occurrence of fire in several smoke control zones in the tunnel; A person detection sensor (4) is arranged on the water curtain generating device and is used to detect whether a person is passing through; A controller (5) is electrically connected to the water curtain generating device (1), the air curtain generating device (2), the fire detection alarm (3) and the personnel detection sensor (4). The controller (5) controls the water curtain generating device (1) and the air curtain generating device (2) based on information from the fire detection alarm (3) and the personnel detection sensor (4) to adjust the flow rates of the water curtain electric-controlled nozzles (11) and the air curtain electric-controlled nozzles (21).

2. The air-water curtain flexible partition intelligent control system according to claim 1 is characterized by: The water curtains are arranged in three rows, the spacing between the water curtains is 2-4 meters, the air curtains are sandwiched between the water curtains, and the distance between the electric-controlled nozzles is 2-3 meters.

3. The air-water curtain flexible partition intelligent control system according to claim 1 is characterized by: The personnel detection sensor (4) is an infrared sensor, which is used to detect the passing position of a person within the coverage area of ​​the water curtain.

4. The air-water curtain flexible partition intelligent control system according to claim 3 is characterized by: The infrared sensor comprises an information transmission unit, which transmits the passing position information of the person to the controller (5).

5. The air-water curtain flexible partition intelligent control system according to claim 4 is characterized in that: The controller (5) comprises a driving unit, and the driving unit can independently control the flow rate of each electrically controlled nozzle. The controller (5) controls the action of the driving unit based on the position information of the person passing by, thereby adjusting the flow rate of each electrically controlled nozzle.

6. A control method for the air-water curtain flexible partition intelligent control system according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1: When the fire detection alarm detects a fire in a smoke control zone in the tunnel, the controller sends a control signal to the drive unit; S2: The driving unit is in action. When the person detection sensor detects that a person is passing by, the person's passing position information is obtained and sent to the controller; S3: When the person detection sensor detects that a person is passing, the person's passing position information is obtained and sent to the controller; S4: After receiving the passing position information of the person, the controller corresponds to the corresponding water curtain electric-controlled nozzle of the water curtain generating device, and reduces the flow of the water curtain electric-controlled nozzle or temporarily shuts down the electric-controlled nozzle by controlling the action of the driving unit. At the same time, the flow of all air curtain electric-controlled nozzles is increased.

7. The control method according to claim 6, characterized in that: The controller stores the spraying range covered by each water curtain electric-controlled nozzle. When the passing position of a person belongs to the spraying range, the corresponding water curtain electric-controlled nozzle reduces the flow of the electric-controlled nozzle or temporarily shuts down the electric-controlled nozzle.

8. The control method according to claim 7, characterized in that: The method also includes step S5, in which, when a person passes by and the person detection sensor does not detect the person passing by within a preset time interval, the corresponding water curtain electronically controlled nozzle restores the initial flow rate.

9. The control method according to claim 8, characterized in that: The preset interval time is 3-5 seconds.

10. The control method according to claim 6, characterized in that: Step S1 also includes, when the fire detection alarm detects a fire, voice broadcasting escape information.

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