Gas-water curtain flexible partition water curtain pipeline system

Abstract

The invention relates to the field of tunnel fire prevention and control, and particularly discloses a gas-water curtain flexible partition water curtain pipeline system which comprises a water supply system and a water distribution system, the water supply system is arranged at the end of a tunnel and can supply water to water curtains of a plurality of smoke control partitions, and the water distribution system comprises a water distribution pipe, an electromagnetic valve and a water curtain spraying system. The water distribution pipe comprises a water distribution loop and water distribution branch pipes, the water distribution branch pipes are connected out of the water distribution loop, the two ends of each smoke control partition are each provided with one water distribution branch pipe, the water distribution branch pipes are arranged in parallel, one water distribution branch pipe is connected with one water curtain spraying system, and each water curtain spraying system is provided with an independent electromagnetic valve. The adjacent water curtain spraying systems between the smoke control subareas are arranged on the two sides of the air curtain of the air-water curtain flexible partition. The water distribution branch pipes arranged in parallel are connected to the respective water curtain spraying systems, and each smoke control subarea is allowed to independently control the water curtain spraying system of the smoke control subarea.

Description

Technical Field

[0001] The present application belongs to the technical field of tunnel fire prevention and control, and specifically relates to an air-water curtain flexible partition water curtain pipeline system. Background Art

[0002] Road tunnels and highway tunnels are key components of urban three-dimensional transportation. They play an important role in saving urban traffic space, relieving traffic pressure and shortening inter-city distances. With the acceleration of urbanization, more and more urban road and highway tunnels are being built and put into use. However, tunnel fires are a major safety hazard, and their effective control and management have become an important issue to ensure the safe operation of tunnels.

[0003] One of the main hazards of tunnel fires is fire smoke. The structural characteristics of tunnels, such as long distances, narrow spaces, and limited exits, cause smoke generated during fires to spread rapidly in the tunnel, resulting in reduced visibility and accumulation of toxic gases, which seriously threatens the safety and health of drivers and passengers. Therefore, effective control and management of tunnel fire smoke has become an urgent problem to be solved. At present, the fire protection system in the tunnel usually includes an automatic water sprinkler system, a water spray system, or a fire hydrant. The design of the water curtain system mainly focuses on the simple sprinkler function, without fully considering the optimization of the pipeline layout and the improvement of the overall system efficiency. These systems have a certain effect in controlling initial fires or small-scale fires, but in complex fire scenarios, especially when it is necessary to effectively control the spread of smoke, their effectiveness is limited. Therefore, there is an urgent need for an optimized water curtain pipeline system designed specifically for the tunnel environment, which is of great significance for improving the ability to respond to tunnel fires. Summary of the invention

[0004] In view of the above defects or improvements required in the prior art solutions, the present invention provides an air-water curtain flexible partition water curtain pipe system. The water curtain pipe system is specially designed to adapt to the unique environment in the tunnel and can quickly and effectively deploy water curtains to isolate and control the spread of smoke.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is as follows: an air-water curtain flexible partition water curtain pipeline system, comprising a water supply system and a water distribution system, wherein the water supply system is arranged at the end of a tunnel, and the water supply system can supply water to the water curtains of several smoke control partitions, and the water distribution system comprises a water distribution pipe, a solenoid valve and a water curtain spray system, and the water distribution pipe comprises a water distribution loop and a water distribution branch pipe, and the water distribution branch pipe is connected from the water distribution loop, and water distribution branches are respectively provided at both ends of each of the smoke control partitions, and the water distribution branches are arranged in parallel, and one water distribution branch pipe is connected to a group of water curtain spray systems, and each group of the water curtain spray systems corresponds to an independent solenoid valve, and the adjacent water curtain spray systems between the smoke control partitions are arranged on both sides of the air curtain of the air-water curtain flexible partition.

[0006] The composition of the air-water curtain flexible partition water curtain pipeline system is based on two core components: the water supply system and the water distribution system. The water supply system is mainly set at the end of the tunnel, and its core function is to provide necessary water sources for multiple smoke control zones divided in the tunnel. This setting ensures the rapid accessibility and efficient utilization of water sources in case of emergencies. The water distribution system is another key component of the present invention, which includes a water distribution pipe, a solenoid valve, and a water curtain spraying system. The water distribution pipe system consists of two main parts: a water distribution loop and water distribution branch pipes. The water distribution loop runs through the entire tunnel to ensure that the water source can be evenly distributed throughout the tunnel. The water distribution branch pipes are led out from the water distribution loop and are located at both ends of each smoke control zone, responsible for directly delivering the water source to a specific smoke control zone. In this system, the water distribution branch pipes are arranged in parallel, and each water distribution branch pipe is connected to a set of water curtain spraying systems. This design enables each smoke control zone to independently control its water curtain spraying system, thereby flexibly adjusting the deployment of the water curtain as needed. Each set of water curtain spraying systems is equipped with an independent solenoid valve, which not only improves the response speed of the system but also enhances the precise control of water flow and pressure. In addition, to improve the effect of the air-water curtain flexible partition, the adjacent water curtain spraying systems between the smoke control zones are arranged on both sides of the air curtain of the air-water curtain flexible partition. This layout effectively enhances the ability of the water curtain to block smoke. By sandwiching the air curtain between the water curtains, a relatively enclosed space can be formed in the tunnel, blocking the diffusion of smoke and ensuring the safety and traffic efficiency inside the tunnel.

[0007] Preferably, the water distribution loop is arranged in the top space of the maintenance passage or evacuation passage inside the tunnel.

[0008] Preferably, one side of the water distribution loop is arranged on the left line of the tunnel, and the other side is arranged on the right line of the tunnel.

[0009] Preferably, the water supply system consists of a water source, a water supply pipe, a water pump, a gate valve, a check valve, and a pressure gauge.

[0010] Preferably, the water supply system includes several sets, and the number of smoke control zones corresponding to each set of water supply systems does not exceed 10.

[0011] Preferably, the connection between the water distribution branch pipe and the water curtain spraying system is detachable, and a stainless steel spherical filter screen is provided at the joint of the water distribution branch pipe.

[0012] Preferably, the water curtain spraying system includes a pipeline main body and several water curtain nozzles, and the pipeline main body is laid in an arc along the inner wall of the tunnel.

[0013] Preferably, the solenoid valve has an adaptive flow regulation function, and the solenoid valve is linked with the smoke sensor in the tunnel and can automatically adjust the water flow of the water curtain spraying system according to the real-time smoke concentration and flow direction in the tunnel.

[0014] Preferably, the water curtain spraying system includes a plurality of water curtain nozzles, and the water curtain nozzles adopt multi-functional nozzles, which can adjust the spraying mode of the nozzles according to needs.

[0015] Preferably, the water supply system further includes an emergency backup water source interface, which can quickly switch to the backup water source when the main water source fails.

[0016] The beneficial effects of the present invention are as follows:

[0017] (1) By adopting water distribution branch pipes arranged in parallel and connecting to their respective water curtain spraying systems, the present invention allows each smoke control zone to independently control its water curtain spraying system. This design provides flexibility, enabling flexible adjustment of the water curtain deployment in each zone according to needs in different situations. Since each group of water curtain spraying systems is equipped with an independent solenoid valve, this enhances the precise control of the water flow rate and pressure of the system, improving the response speed and efficiency of the system. The solenoid valve of the water curtain spraying system has an adaptive flow regulation function, which can be linked with the smoke sensors in the tunnel and automatically adjust the water flow rate according to the real-time smoke concentration and flow direction, improving the intelligent control and adaptability of the system.

[0018] (2) The water curtain spraying systems configured on both sides of the air-water curtain flexible partition enhance the smoke blocking ability of the water curtain. This layout can form a relatively enclosed space in the tunnel, effectively blocking the diffusion of smoke while maintaining the traffic efficiency of the tunnel.

[0019] (3) The setting of the water distribution loop takes into account the internal structure of the tunnel and is preferably arranged in the top space of the internal maintenance passage or evacuation passage in the tunnel, as well as the layout along the left and right lines of the tunnel. This optimizes the overall layout and installation of the water curtain pipeline system, ensuring the efficient operation of the system. Description of the Drawings

[0020] Figure 1 Schematic diagram of the air-water curtain flexible partition water curtain pipeline system shown in the embodiment of the present invention;

[0021] Figure 2 Schematic diagram of the air-water curtain flexible partition in the tunnel shown in the embodiment of the present invention;

[0022] Figure 3 Schematic cross-sectional view of the internal pipeline layout of the tunnel shown in the embodiment of the present invention;

[0023] Figure 4 Schematic diagram of the connection between the water distribution branch pipe and the water curtain spraying system in the embodiment of the present invention.

[0024] Description of the reference numerals in the drawings: 1 - water source, 2 - water supply pipe, 3 - water pump, 4 - standby water source interface, 5 - water distribution pipe, 6 - water distribution loop, 7 - water distribution branch pipe, 8 - solenoid valve, 9 - water curtain spraying system, 10 - stainless steel spherical filter, 11 - pipeline main body, 12 - water curtain nozzle, 13 - smoke control zone, 14 - air curtain. Detailed implementation manners

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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 the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention belong to the scope of the present invention.

[0026] In addition, the described features, structures or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of the present application. However, those skilled in the art will realize that the technical solutions of the present application may be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. may be used. 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.

[0027] Please refer to Figures 1-3, this embodiment provides an air-water curtain flexible partition water curtain pipe system, which aims to improve the smoke control efficiency and safety in the case of tunnel fires. The system mainly consists of two parts: a water supply system and a water distribution system. The water supply system is set at the end of the tunnel, and its main function is to provide water sources for several smoke control zones 13 divided in the tunnel. This water supply system can ensure that sufficient water volume can be quickly provided for the water curtain spraying system in case of a fire. The water distribution system includes a water distribution pipe 5, a solenoid valve 8, and a water curtain spraying system 9. The core part of the water distribution system is the water distribution pipe, which consists of two main parts: a water distribution loop 6 and a water distribution branch pipe 7. The water distribution loop 6 extends along the entire tunnel to ensure that the water source can be evenly distributed throughout the tunnel. The water distribution branch pipes 7 connected to the water distribution loop 6 are arranged at both ends of each smoke control zone 13 to ensure that each zone can receive sufficient water volume. Water distribution branch pipes 7 are provided at both ends of each smoke control zone 13, and they are arranged in parallel. This can ensure that even if a part of the pipeline fails, the other parts can still work normally, thus not affecting the operation of the entire system. Each water distribution branch pipe 7 is connected to a group of water curtain spraying systems 9, and each group of water curtain spraying systems 9 corresponds to an independent solenoid valve 8. This design allows for independent control of the water curtain in each smoke control zone, thereby achieving targeted smoke control. The solenoid valve 8 used to control the water flow can be quickly opened or closed as needed, thus achieving precise control of the water flow rate, which is crucial for dealing with fires of different intensities and scopes. To improve the partition effect, the water curtain spraying systems 9 between adjacent smoke control zones 13 are arranged on both sides of the air curtain 14 of the air-water curtain flexible partition. This sandwich-like arrangement helps to form a more effective partition area to prevent further spread of smoke inside the tunnel. When a fire occurs, the inner water curtain can isolate part of the flue gas. And because the temperature of the flue gas is relatively high, through the heat exchange between the flue gas and the water curtain, the temperature of the flue gas is reduced. At the same time, the water curtain can adsorb some gases such as CO2 and SO2 in the flue gas. And due to the denser air jet of the air curtain 14, it can better play the role of isolating the flue gas. The outer water curtain further serves to reduce the temperature of the flue gas and prevent the leakage of the flue gas to the outside.

[0028] In this embodiment, please refer to Figure 3, the water distribution loop 6 is arranged in the overhead space of the maintenance passage or evacuation passage inside the tunnel. The advantage of this layout design is that it does not interfere with the basic structure and use of the tunnel, and at the same time is convenient for daily inspection and maintenance. Especially when it is located at the top of the tunnel, automatic sprinkling can be achieved under the action of gravity. The water distribution loop 6 is arranged along the left and right lines of the tunnel. Such a layout can achieve an effective circulation with the water source. This circulating layout has multiple advantages. First of all, it ensures the uniform distribution of water pressure and water flow throughout the length of the tunnel. No matter where a fire occurs in the tunnel, the water curtain can be deployed quickly and evenly. Secondly, this arrangement improves the reliability of the system. Even if part of the loop fails, other parts can still maintain normal operation, ensuring the continuous water supply of the water curtain sprinkler system. Through the cooperation of the loop with the left and right lines of the tunnel, this system can effectively maintain a stable water flow supply. In the event of a fire, this stable water flow supply is crucial for quickly controlling the fire and smoke. In addition, this design helps to reduce the pressure loss of the water flow during long-distance transportation, thus maintaining the best working state of the sprinkler system.

[0029] Please refer to Figure 1 , the water supply system in the present invention consists of the following key components: water source 1, water supply pipe 2, water pump 3, gate valve, check valve and pressure gauge. These components work together to ensure that the system can provide stable and continuous water flow when needed. The water source 1, as the core of the water supply system, is responsible for providing sufficient water volume for the entire system. The water supply pipe 2 is responsible for transporting water from the water source to the water distribution system, and the water supply pipe 2 can be set into two groups. The water pump 3 is used to push the water flow through the pipeline system to ensure the stability of water pressure and flow rate throughout the tunnel. The gate valve and check valve are used to control the direction and flow rate of the water flow, prevent the water flow from flowing back, and maintain the effective operation of the system. The pressure gauge is used to monitor the water pressure in the system to ensure that the water pressure always remains within the ideal range. In addition, an emergency backup water source interface 4 is added to the water supply system. The main function of this interface is that when the main water source fails, such as due to maintenance, damage or any other reason, the system can quickly switch to the backup water source. This design significantly improves the reliability and continuous operation ability of the system in extreme or unforeseen situations. In order to improve the adaptability and coverage of the system, each set of water supply system in the present invention is designed to independently supply no more than 10 smoke control zones. By restricting the number of smoke control zones supplied by each set of systems, the pressure demand on a single water pump 3 can be effectively reduced, thereby improving the overall efficiency and reliability of the system.

[0030] Please refer to Figures 3-4, in this embodiment, a detachable connection is adopted between the water distribution branch pipe 7 and the water curtain spraying system 9. This design facilitates the installation, maintenance, and replacement of the system. A stainless-steel filter screen is also provided at the joint of the water distribution branch pipe 7 to filter impurities in the water, ensuring the normal operation of the water curtain spraying system 9 and extending its service life. Specifically, considering its minimum resistance to water flow and excellent filtering effect, the stainless-steel filter screen adopts a spherical filter structure, and the stainless-steel spherical filter screen 10 is easy to take out and clean. The water curtain spraying system 9 includes a pipe main body 11 and a number of water curtain nozzles 12. The pipe main body 11 can be laid in an arc along the inner wall of the tunnel. This layout enables the water curtain to more evenly cover the key areas in the tunnel, effectively controlling the spread of smoke. The solenoid valve 8 has an adaptive flow regulation function and can automatically adjust the water flow according to the real-time smoke concentration and flow direction in the tunnel. This intelligent control is linked with the smoke sensors installed in the tunnel, ensuring that the water curtain spraying system can respond flexibly according to the severity of the fire situation. For example, when the smoke concentration increases, the solenoid valve 8 will increase the water flow to enhance the density of the water curtain, effectively blocking and controlling the spread of smoke. When the fire is less severe, the system can maintain a lower water flow, while when the fire is severe, it can quickly increase the water flow to achieve the best fire extinguishing and smoke control effects.

[0031] The water curtain spraying system 9 of this system includes a number of water curtain nozzles 12. These nozzles adopt a multi-functional nozzle design. The multi-functional nozzle can adjust the spraying mode according to different fire and smoke situations, thereby improving the efficiency and effect of fire extinguishing and smoke control. The multi-functional nozzle can switch between different modes. For example, fine mist spraying is used for large-area low-intensity fire extinguishing, or concentrated direct-current spraying is used for high-intensity local fire extinguishing. By adjusting the spraying mode according to the fire and smoke situations, these multi-functional nozzles can significantly improve the efficiency and effect of fire extinguishing and smoke control. For example, in the initial stage of the fire, fine mist spraying can quickly reduce the temperature of the area and prevent the spread of the fire; while in the concentrated fire area, direct-current spraying can provide strong fire extinguishing power.

[0032] This gas-water curtain flexible partition water curtain pipe system provided by the present invention significantly improves the efficiency and safety in dealing with tunnel fires through a series of innovative designs. The water supply and distribution design of the system, including the linkage between the intelligent solenoid valve and the smoke sensor, the application of multi-functional nozzles, and the efficient water flow distribution structure, jointly solve the key problem of smoke control in tunnel fires. In addition, the detachable design of the water distribution branch pipe and the application of the spherical filter screen improve the maintainability and durability of the system, while reducing the maintenance cost. The introduction of the emergency backup water source interface further enhances the reliability and continuous operation ability of the system in extreme situations.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above. For the sake of brevity, they are not provided in detail; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An air-water curtain flexible partition water curtain pipeline system, characterized in that: The invention comprises a water supply system and a water distribution system. The water supply system is arranged at the end of a tunnel. The water supply system can supply water to the water curtains of several smoke control partitions (13). The water distribution system comprises a water distribution pipe, a solenoid valve (8) and a water curtain spray system (9). The water distribution pipe comprises a water distribution loop (6) and a water distribution branch pipe (7). The water distribution branch pipe (7) is connected from the water distribution loop (6). The two ends of each of the smoke control partitions (13) are respectively provided with a water distribution branch pipe (7). The water distribution branch pipes (7) are arranged in parallel. One water distribution branch pipe (7) is connected to a group of water curtain spray systems (9). Each group of the water curtain spray systems (9) corresponds to an independent solenoid valve (8). The adjacent water curtain spray systems (9) between the smoke control partitions (13) are arranged on both sides of the air curtain of the air-water curtain flexible partition.

2. The air-water curtain flexible partition water curtain pipeline system according to claim 1 is characterized in that: The water distribution loop (6) is arranged in the top space of the tunnel internal maintenance passage or evacuation passage.

3. The air-water curtain flexible partition water curtain pipeline system according to claim 2 is characterized in that: One side of the water distribution loop (6) is arranged on the left line of the tunnel, and the other side is arranged on the right line of the tunnel.

4. The air-water curtain flexible partition water curtain pipeline system according to claim 1 is characterized in that: The water supply system consists of a water source (1), a water supply pipe (2), a water pump (3), a gate valve, a check valve, and a pressure gauge.

5. The air-water curtain flexible partition water curtain pipeline system according to claim 1 is characterized in that: The water supply system includes several sets, and each water supply system corresponds to no more than 10 smoking control zones (13).

6. The air-water curtain flexible partition water curtain pipeline system according to claim 1 is characterized in that: The water distribution branch pipe (7) and the water curtain spray system (9) are detachably connected, and a stainless steel filter screen (10) is provided at the joint of the water distribution branch pipe.

7. The air-water curtain flexible partition water curtain pipeline system according to claim 6 is characterized in that: The water curtain spray system (9) comprises a pipeline body (11) and a plurality of water curtain spray heads (12); the pipeline body (11) is laid in an arc shape along the inner wall of the tunnel.

8. The air-water curtain flexible partition water curtain pipeline system according to claim 1 is characterized in that: The solenoid valve (8) has an adaptive flow rate adjustment function. The solenoid valve (8) is linked with the smoke sensor in the tunnel and can automatically adjust the water flow rate of the water curtain spray system (9) according to the real-time smoke concentration and flow direction in the tunnel.

9. The air-water curtain flexible partition water curtain pipeline system according to claim 8 is characterized in that: The water curtain spray system (9) comprises a plurality of water curtain spray heads (12), wherein the water curtain spray heads (12) adopt multifunctional nozzles and the spraying mode of the nozzles can be adjusted according to needs.

10. The air-water curtain flexible partition water curtain pipeline system according to claim 1, characterized in that: The water supply system also includes an emergency backup water source interface (4) which can quickly switch to the backup water source when a main water source fails.

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