Tunnel water curtain imaging system

Abstract

The application belongs to the technical field of water curtain imaging, and discloses a water curtain imaging system for a tunnel. The water curtain imaging system comprises a water curtain module, an imaging module, a recycling module and a control module. The water curtain module comprises a main water pipe hung on the top of the tunnel and a liquid storage tank arranged on one side of the tunnel. A high-pressure pump is arranged at the outlet of the liquid storage tank. The high-pressure pump is connected with the main water pipe through a water supply pipe. A plurality of water outlet pipes are arranged on the main water pipe. A spraying assembly is connected to the water outlet pipes. The spraying assembly comprises a spraying unit. A water inlet pipe is arranged on the spraying unit. The water inlet pipe is connected with the water outlet pipe through an electromagnetic valve. A plurality of spraying openings are arranged on the bottom surface of the spraying unit. Nozzles are arranged at the spraying openings. The imaging module projects content onto the water curtain. The recycling module recycles the falling liquid. The control module controls the operation of the modules. The electromagnetic valve and the spraying unit are one-to-one corresponding. Nozzles are arranged on the spraying unit. The spraying units are closely arranged. The generated water curtain is dense, and the continuity of the imaging picture is strengthened. The number of electromagnetic valves is reduced, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of water curtain imaging technology, and in particular to a water curtain imaging system for tunnels. Background Technology

[0002] As a key structure and vital link in highway infrastructure, the safe operation of tunnels directly affects the smooth and efficient flow of the highway network, significantly impacting sustained and healthy economic development and the safety of people's lives and property. Due to the enclosed nature of tunnels, poor visibility, limited space, and difficulties in rescue operations, the traffic capacity and driving safety of the entire tunnel section will be affected in the event of a sudden accident. This makes it difficult for vehicles and personnel to evacuate effectively, and hinders rescue efforts, posing a significant threat to people's lives and property.

[0003] Chinese utility model patent CN221387123U discloses a water curtain imaging control device, including a main frame and a water curtain assembly. The water curtain assembly is placed on the main frame, which has a portal frame structure and a rotating top beam. A drive motor is provided at the end of the beam. The water curtain assembly includes several nozzle assemblies, which are fixedly placed on the beam and extend to the inside of the beam. Each nozzle assembly includes a nozzle pipe, which is connected to a solenoid valve via a pipeline. The nozzle pipe has an external thread, and a fastening sleeve is screwed onto the nozzle pipe and correspondingly fastened to a deflection shaft. A solenoid valve is provided on the nozzle assembly, which controls the on / off state of the corresponding nozzle.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: In the above solutions, one solenoid valve corresponds to one nozzle. In order to ensure that the generated water curtain is uniform and dense, many nozzles need to be set up, so many solenoid valves are required, which increases the cost of the imaging system; Since the solenoid valve has a certain volume, there will inevitably be a certain distance between the nozzles, making the water curtain sparse and thus affecting the continuity of the image. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a tunnel water curtain imaging system.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a tunnel water curtain imaging system, comprising a water curtain module, an imaging module, a recovery module, and a control module. The water curtain module includes a main water pipe horizontally suspended at the top of the tunnel and a liquid storage tank located on one side of the tunnel. A high-pressure pump is installed at the outlet of the liquid storage tank. The high-pressure pump is connected to the main water pipe via a water supply pipe. Several water outlet pipes are arranged along the length of the main water pipe. Spraying components are connected to the water outlet pipes. The spraying components include spraying units parallel to the main water pipe. Each spraying unit has an inlet pipe, which is connected to a corresponding outlet pipe via a solenoid valve. Several spray nozzles are opened along the length of the bottom surface of the spraying unit, and nozzles are installed at the spray nozzles. The imaging module includes a projection device installed at the top of the tunnel, with the projection direction of the projection device facing the water curtain module. The recovery module is located on the tunnel surface and both sides below the main water pipe for recovering liquid falling from above. The control module is used to control the operation of each module.

[0007] By adopting the above technical solution, a spray unit, solenoid valve, and nozzles are set up. One solenoid valve corresponds to one spray unit, and several nozzles are set on the spray unit. The spacing between the nozzles is not affected by the size of the solenoid valve, so that the nozzles are closely arranged, resulting in a dense water curtain and enhancing the continuity of the image. At the same time, by arranging the spray units closely, it is not necessary to arrange the solenoid valves closely, thereby reducing the number of solenoid valves used and thus reducing the cost of the imaging system.

[0008] Furthermore, the spray nozzles are arranged in two rows, and the two rows of spray nozzles are staggered.

[0009] By adopting the above technical solution, the spray nozzles are arranged in two rows with the two rows staggered, making the generated water curtain denser and thus further enhancing the continuity of the imaging image.

[0010] Furthermore, the spray unit is equipped with a partition that divides the inner cavity of the spray unit into two chambers. Two rows of spray nozzles are arranged on the bottom surface of the spray unit and correspond to the two chambers respectively. Two water inlet pipes are provided and are connected to the two chambers respectively. The solenoid valve has a one-inlet and two-outlet structure. The inlet of the solenoid valve is connected to the main water pipe through the outlet pipe, and the two outlets are connected to the two chambers of the spray unit through the two inlet pipes.

[0011] By adopting the above technical solution, a partition is set up to divide the inner cavity of the spray unit into two chambers. Two rows of spray nozzles correspond to the two chambers respectively. The two chambers are connected to the two outlets of the solenoid valve through two water inlet pipes. The solenoid valve controls the water flow in the two chambers, thereby enabling the single row of nozzles to work or the two rows of nozzles to work simultaneously.

[0012] Furthermore, a support frame is provided on the tunnel, the main water pipe is fixed to the bottom of the support frame, two adjacent spray units are fixedly connected, and the upper end of some spray units is fixedly connected to the support frame.

[0013] By adopting the above technical solution, a support frame is set up to fix the main pipeline and some spray units to the bottom surface of the support frame, so that the weight of the main pipeline and all spray units acts on the support frame, thereby avoiding stress on the solenoid valve.

[0014] Furthermore, the recycling module includes a guide channel located below the spray unit. A supporting grid plate is provided at the opening of the guide channel, and the top surface of the supporting grid plate is flush with the tunnel surface. The bottom of the guide channel is inclined along the tunnel width direction, and a filter tank is provided at the lowest end of the bottom. A filter screen is provided between the filter tank and the guide channel. A filter box is provided next to the filter tank, and the filter tank and the filter box are connected by a guide pipe. An activated carbon filter element is provided at the inlet of the filter box, and a water pump is provided at the outlet and connected to a storage tank through a pipe.

[0015] By adopting the above technical solution, a guide channel, a filter channel, and a filter box are set up. The falling liquid is collected through the guide channel, impurities are removed by filtration through the filter channel and the filter box, and then it is transported to the storage tank for liquid recycling, thereby realizing the recycling of liquid.

[0016] Furthermore, two mixing tanks are arranged next to the storage tank. A three-way valve is installed between the water pump and the two mixing tanks. The inlet of the three-way valve is connected to the water pump through a pipe, and the two outlets are respectively connected to the inlets of the two mixing tanks through pipes. A return water pump is installed between the two mixing tanks and the storage tank. The inlet of the return water pump is connected to the outlet of the two mixing tanks through a three-way pipe, and the outlet is connected to the storage tank through a pipe. A control valve is installed at the outlet of each of the two mixing tanks. An additive tank is installed above the two mixing tanks. A distribution valve is installed on the additive tank. A drain pipe is installed between the distribution valve and the two mixing tanks. The three-way valve, control valve, and distribution valve are connected to the control module.

[0017] By adopting the above technical solution, a liquid preparation tank and an additive tank are set up. The recovered and filtered liquid is transported to the liquid preparation tank, and the liquid concentration is adjusted by the additives in the additive tank, thereby ensuring the liquid concentration in the storage tank.

[0018] Furthermore, a temperature sensor is installed inside the liquid storage tank, and a heating element is installed at the bottom of the liquid storage tank.

[0019] By adopting the above technical solution, temperature sensors and heating elements are set up to heat the liquid when the temperature is low, thereby preventing the liquid from freezing and ensuring the fluidity of the liquid.

[0020] In summary, this utility model has the following beneficial effects:

[0021] In this application, by setting up a spray unit, a solenoid valve, and nozzles, with one solenoid valve corresponding to one spray unit and several nozzles set on the spray unit, the spacing between the nozzles is not affected by the size of the solenoid valve, thereby making the nozzles closely arranged, resulting in a dense water curtain and enhancing the continuity of the imaging image; at the same time, by arranging the spray units closely, it is not necessary to arrange the solenoid valves closely, thereby reducing the number of solenoid valves used and thus reducing the cost of the imaging system. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0023] Figure 2 This is a partial structural diagram of the tunnel according to an embodiment of the present invention;

[0024] Figure 3 This is a partial structural schematic diagram of the water curtain module according to an embodiment of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the spray unit according to an embodiment of the present invention;

[0026] Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure;

[0027] Figure 6 This is a cross-sectional structural diagram of the guide channel, filter channel, and filter box according to an embodiment of the present utility model.

[0028] In the diagram: 10. Storage tank; 11. High-pressure pump; 12. Main water pipe; 13. Water supply pipe; 14. Water outlet pipe; 15. Solenoid valve; 16. Support frame; 20. Spray assembly; 21. Spray unit; 22. Water inlet pipe; 23. Spray nozzle; 24. Nozzle; 25. Baffle plate; 30. Projection device; 40. Guide channel; 41. Support grid plate; 42. Filter tank; 43. Filter screen; 44. Filter box; 45. Guide pipe; 46. Activated carbon filter element; 47. Water pump; 48. Three-way valve; 50. Liquid preparation tank; 51. Return water pump; 52. Control valve; 53. Additive tank; 54. Distribution valve; 55. Drainage pipe. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] like Figure 1-6 As shown in the figure, this application discloses a tunnel water curtain imaging system, including a water curtain module, an imaging module, a recovery module, and a control module. The water curtain module is installed inside the tunnel to form a water curtain; the imaging module is installed inside the tunnel to project images onto the formed water curtain; the recovery module is used to recover the fallen liquid and transport it to the storage tank 10, thereby realizing the recycling of the liquid; the control module is used to control the operation of each module.

[0031] In specific configuration, the water curtain module includes a storage tank 10, a main water pipe 12, a spray assembly 20, and a solenoid valve 15.

[0032] A storage tank 10 is located on one side of the tunnel. A high-pressure pump 11 is installed at the outlet of the storage tank 10. A main water pipe 12 is horizontally suspended at the top of the tunnel. The high-pressure pump 11 and the main water pipe 12 are connected via a water supply pipe 13. Several outlet pipes 14 are installed along the length of the main water pipe 12, and the spray assembly 20 is connected to the outlet pipes 14. The spray assembly 20 includes a spray unit 21 parallel to the main water pipe 12. An inlet pipe 22 is installed on the spray unit 21, and the inlet pipe 22 is connected to the corresponding outlet pipe 14 via a solenoid valve 15. The bottom surface of the spray unit 21 has several spray nozzles 23 along its length. Each spray nozzle 24 is provided at a spray nozzle 23. Each spray unit 21 corresponds to a solenoid valve 15. Several nozzles 24 are provided on the spray unit 21, so that the spacing between the nozzles 24 is not affected by the size of the solenoid valve 15. This allows the nozzles 24 to be arranged closely, resulting in a dense water curtain and enhancing the continuity of the image. At the same time, by arranging the spray units 21 closely, it is not necessary to arrange the solenoid valves 15 closely, thereby reducing the number of solenoid valves 15 used and thus reducing the cost of the imaging system.

[0033] Specifically, a partition 25 is installed inside the spray unit 21, dividing the inner cavity of the spray unit 21 into two chambers. There are two water inlet pipes 22, each connected to one of the two chambers. The solenoid valve 15 is a one-inlet, two-outlet electromagnetic diverter valve. The inlet is connected to the main water pipe 12 via the outlet pipe 14, and the two outlets are connected to the two chambers of the spray unit 21 via two inlet pipes 22. There are two rows of spray nozzles 23, arranged in a staggered pattern, which further densifies the generated water curtain, thereby enhancing the continuity of the image. The two rows of spray nozzles 23 are located on the bottom surface of the spray unit 21 and correspond to the two chambers respectively. The solenoid valve 15 controls the flow of water within the two chambers, enabling either a single row of nozzles 24 to operate or both rows of nozzles 24 to operate simultaneously. A support frame 16 is installed on the tunnel, with the main pipeline fixed to the bottom of the support frame 16. Two adjacent spray units 21 are fixedly connected, and the upper ends of some spray units 21 are fixedly connected to the support frame 16. This ensures that the weight of the main pipeline and all spray units 21 is distributed on the support frame 16, thereby preventing the solenoid valve 15 from being stressed.

[0034] A temperature sensor is installed inside the liquid storage tank 10, and a heating element is installed at the bottom of the liquid storage tank 10. The temperature sensor detects the temperature of the liquid inside the liquid storage tank 10. In a low-temperature environment, when the liquid temperature is lower than a set value, the control module is notified, and the control module activates the heating element to heat the liquid, thereby ensuring the flow of the liquid.

[0035] The imaging module includes a projection device 30 installed at the top of the tunnel. The projection device 30 is directed toward the water curtain module, projecting the content to be imaged onto the water curtain.

[0036] The recovery module includes a flow channel 40, a filter tank 42, a filter box 44, and a water pump 47. The flow channel 40 is located below the spray unit 21 and is used to collect falling liquid. A supporting grid plate 41 is installed at the opening of the flow channel 40, and the top surface of the supporting grid plate 41 is flush with the tunnel surface, supporting vehicles traveling on the road. The bottom of the flow channel 40 is inclined along the tunnel width direction, which promotes the liquid to flow to one side within the flow channel 40. The filter tank 42 is located at the lowest end of the bottom of the flow channel 40, and a filter screen 43 is installed between the filter tank 42 and the flow channel 40. The filter box 44 is located next to the filter tank 42, and the filter tank 42 and the filter box 44 are connected by a flow pipe 45. An activated carbon filter element 46 is installed at the inlet of the filter box 44. By setting the filter screen 43 and the activated carbon filter element 46, the recovered liquid is filtered to remove impurities. A water pump 47 is installed at the outlet of the filter box 44 and is connected to the storage tank 10 through a pipe to extract and recycle the filtered liquid, thereby realizing the recycling of the liquid.

[0037] Specifically, two liquid distribution tanks 50 are installed next to the storage tank 10. Each liquid distribution tank 50 is equipped with a return water pump 51, a three-way valve 48, and a distribution valve 54. The three-way valve 48 is located between the water pump 47 and the two liquid distribution tanks 50. The inlet of the three-way valve 48 is connected to the water pump 47 via a pipe, and its two outlets are connected to the inlets of the two liquid distribution tanks 50 via pipes. The three-way valve 48 is used to control the flow direction of liquid into the two liquid distribution tanks 50. A level gauge is installed at the inlet of each of the two liquid distribution tanks 50. The level gauge detects the liquid level in the liquid distribution tank 50, and when the liquid level reaches a set height, the feedback is sent to the control module. The control module then controls the three-way valve 48 to change the flow direction of the liquid. A return water pump 51 is installed between the mixing tank 50 and the storage tank 10. The inlet of the return water pump 51 is connected to the outlets of the two mixing tanks 50 via a three-way pipe. The outlets are connected to the storage tank 10 via pipes, transporting the liquid from the mixing tanks 50 to the storage tank 10. Each of the two mixing tanks 50 has a control valve 52 at its outlet to control the flow of liquid. An additive tank 53 is installed above the two mixing tanks 50, and a distribution valve 54 is installed on the additive tank 53. A drain pipe 55 connects the distribution valve 54 to the two mixing tanks 50. Concentration meters are installed in both mixing tanks 50 to test the concentration of the recovered liquid. The concentration is then transmitted to the control module. After calculation, the control module controls the distribution valve 54 to add an appropriate amount of additive to the mixing tank 50, balancing the concentration of the recovered liquid to match the concentration of the liquid in the storage tank 10. After the liquid is prepared, the control module controls the return water pump 51 to start and opens the outlet control valve 52 of the prepared liquid tank 50 to transport the prepared liquid into the storage tank 10, ensuring that the liquid in the storage tank 10 is sufficient.

[0038] The tunnel is also equipped with detection devices to monitor vehicle status information and transmit this information to the control module. The control module analyzes the transmitted information to determine the operational status of each module.

[0039] The operating principle of the tunnel water curtain imaging system in this embodiment is as follows: When an emergency occurs in the tunnel, the detection device inside the tunnel feeds back abnormal information to the control module. The control module analyzes the feedback abnormal information and then controls the imaging module to display the required warning content. When the detection device at the tunnel entrance detects the entry of a vehicle, it detects the vehicle's position. When the vehicle approaches the imaging device, the control module activates the high-pressure pump 11 and the projection device 30. The liquid in the storage tank 10 falls through the high-pressure pump 11 and the spray assembly 20 to form a water curtain. The projection device 30 projects the content onto the water curtain to warn approaching vehicles. The falling liquid is filtered through a recovery device, and then the filtered liquid is pumped back to the storage tank 10 by the water pump 47 for concentration equalization. After the liquid is adjusted, it is pumped back to the storage tank 10 by the return water pump 51, realizing the recycling of the liquid.

[0040] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A water curtain imaging system for use in a tunnel, characterized by: The system includes a water curtain module, an imaging module, a recovery module, and a control module. The water curtain module includes a main water pipe (12) suspended horizontally at the top of the tunnel and a storage tank (10) located on one side of the tunnel. A high-pressure pump (11) is installed at the outlet of the storage tank (10). The high-pressure pump (11) is connected to the main water pipe (12) via a water supply pipe (13). Several water outlet pipes (14) are installed along the length of the main water pipe (12). Spraying components (20) are connected to the water outlet pipes (14). The spraying components (20) include spraying units (21) parallel to the main water pipe (12). The spray unit (21) is provided with a water inlet pipe (22), and the water inlet pipe (22) is connected to the corresponding water outlet pipe (14) through a solenoid valve (15). The bottom surface of the spray unit (21) is provided with a plurality of spray nozzles (23) along its length direction, and a nozzle (24) is provided at the spray nozzle (23). The imaging module includes a projection device (30) set at the top of the tunnel, and the projection direction of the projection device (30) is towards the water curtain module. The recycling module is set at the tunnel surface and both sides below the main water pipe (12) and is used to recycle the liquid falling from above. The control module is used to control the operation of each module.

2. A water curtain imaging system for a tunnel according to claim 1, characterized in that: The spray nozzles (23) are arranged in two rows and are staggered.

3. A water curtain imaging system for a tunnel as claimed in claim 2, characterized in that: The spray unit (21) is provided with a partition (25), which divides the inner cavity of the spray unit (21) into two cavities. Two rows of spray nozzles (23) are provided on the bottom surface of the spray unit (21) and correspond to the two cavities respectively. Two water inlet pipes (22) are provided and are connected to the two cavities respectively. The solenoid valve (15) has a one-inlet and two-outlet structure. The inlet of the solenoid valve (15) is connected to the main water pipe (12) through the outlet pipe (14), and the two outlets are connected to the two cavities of the spray unit (21) through the two inlet pipes (22).

4. A water curtain imaging system for a tunnel as defined in claim 1, characterized in that: A support frame (16) is provided on the tunnel, the main water pipe (12) is fixed at the bottom of the support frame (16), two adjacent spray units (21) are fixedly connected, and the upper end of some of the spray units (21) is fixedly connected to the support frame (16).

5. A water curtain imaging system for a tunnel as defined in claim 1, characterized in that: The recycling module includes a guide channel (40) located below the spray unit (21). A supporting grid plate (41) is provided at the opening of the guide channel (40), and the top surface of the supporting grid plate (41) is flush with the tunnel road surface. The bottom of the guide channel (40) is arranged inclined along the tunnel width direction, and a filter tank (42) is provided at the lowest end of the bottom. A filter screen (43) is provided between the filter tank (42) and the guide channel (40). A filter box (44) is provided next to the filter tank (42), and the filter tank (42) and the filter box (44) are connected by a guide pipe (45). An activated carbon filter element (46) is provided at the inlet of the filter box (44), and a water pump (47) is provided at the outlet and connected to the storage tank (10) through a pipe.

6. A water curtain imaging system for a tunnel according to claim 5, characterized in that: Two mixing tanks (50) are arranged next to the storage tank (10). A three-way valve (48) is provided between the water pump (47) and the two mixing tanks (50). The inlet of the three-way valve (48) is connected to the water pump (47) through a pipe, and the two outlets are respectively connected to the inlets of the two mixing tanks (50) through pipes. A return water pump (51) is provided between the two mixing tanks (50) and the storage tank (10). The inlet of the return water pump (51) is connected to the two mixing tanks (50) through a three-way pipe. The outlet of the tank (50) is connected to the storage tank (10) through a pipe. The outlets of the two mixing tanks (50) are equipped with control valves (52). An additive tank (53) is set above the two mixing tanks (50). A distribution valve (54) is set on the additive tank (53). A drain pipe (55) is set between the distribution valve (54) and the two mixing tanks (50). The three-way valve (48), control valve (52), and distribution valve (54) are connected to the control module.

7. A water curtain imaging system for a tunnel as defined in claim 1, characterized in that: A temperature sensor is installed inside the liquid storage tank (10), and a heating element is installed at the bottom of the liquid storage tank (10).

Images