A device that warns passengers to stay away from train tracks before a train enters a station
By using the air curtain warning device generated by the turbine blower on the train platform, the safety hazards caused by the Bernoulli effect before the train enters the station are solved, efficient safety prompts without fences are achieved, and the utilization rate and aesthetics of the platform are improved. .
Patent Information
- Application Number
- CN202011170668.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-10-28
- Publication Date
- 2025-01-03
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, safety hazards caused by the Bernoulli effect before the train enters the station are difficult to effectively solve, and existing solutions such as high cost of telescopic fences, low space utilization, and aesthetics affecting them, and safety hazards on high-speed train platforms are still exist.
Design a device to warn passengers away from the train tracks before entering the station. The Bernoulli effect formed by the airflow during the train is used to drive the turbine blower to generate an air curtain, and spray air flow to the platform through the jet nozzle to form a body-sensing air curtain warning , combined with spotlights to form a color barrier to remind passengers to stay away from the track.
It effectively improves passengers' sense of security, reduces the need for manual care on the platform, improves the space utilization and aesthetics of the platform, and keeps passengers away from the track through the somatosensory prompts of airflow, eliminating the safety hazards brought by the Bernoulli effect.
Smart Images
Figure CN112224238B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of rail transportation, and relates to a device for warning passengers to stay away from train tracks before a train enters a station. Background Art
[0002] Due to the existence of the Bernoulli effect, during the operation of the train, the area close to the outer wall of the car forms an air pressure difference due to the faster air flow speed, which makes the two sides of the car have an attraction towards the car. The existence of this pressure difference poses a safety hazard to both sides of the platform, especially with the improvement of the running speed and stop efficiency of the train. The train entering the station still has a relatively high speed. In order to avoid the safety hazards caused by the Bernoulli effect, warning yellow lines are set on both sides of the platform to warn passengers before boarding that they are in a position where the Bernoulli effect is weaker. At present, staff are still needed on the platforms of high-speed trains to supervise and shout to passengers to prevent passengers from mistakenly entering the warning yellow lines, which seriously affects and wastes manpower and is not conducive to the advancement of intelligent and unmanned stations. Due to the setting of the warning yellow lines, the space utilization rate of the platform is reduced.
[0003] In the prior art, some people have proposed to utilize the Bernoulli effect formed on both sides of the train so that the pressure difference formed when the train passes at high speed can be used for power generation. However, since the power generation equipment convects the airflow from the side with higher pressure to the side with lower pressure, it actually has a negative impact on the wind resistance of the train, and thus the application value of the Bernoulli effect is relatively low.
[0004] Among the solutions to solve the safety hazards of platforms on both sides of the tracks, installing retractable fences has a good effect. However, retractable fences are not only costly, increase the unusable space on the platform, and affect the appearance and cleanliness of the platform, but the opening and closing of the retractable fences will also cause new safety hazards. In addition, high-speed railways and other train stations are used for both passengers and freight, and retractable fences affect cargo handling and train maintenance. Summary of the invention
[0005] The purpose of the present invention is to provide a device for warning passengers to stay away from the train tracks before the train enters the station in order to solve the above-mentioned problems in the prior art. The technical problem to be solved by the present invention is how to provide tactile warnings to passengers waiting on the platform through air curtains before the train enters the station to improve safety.
[0006] The object of the present invention can be achieved by the following technical solutions: A device for warning passengers to stay away from train tracks before a train enters a station, characterized in that it includes a track plane and a platform plane located on both sides of the track plane, the platform plane is higher than the track plane, and one end of the platform plane in the direction of the train entering the station is provided with a plurality of pressure difference driving units located on one side or both sides of the track, the pressure difference driving unit includes a sleeve fixed on the track plane, a rotating shaft rotatably connected in the sleeve, an impeller fixed on the rotating shaft, and a turbo blower fixed on the rotating shaft above the impeller, the outlet end of each of the turbo blowers is connected to an outlet main pipe, the end of the outlet main pipe is connected to an injection pipe, the injection pipe is arranged below the platform plane in a direction parallel to the track, a plurality of injection nozzles are arranged on the injection pipe, the outlet end of the injection nozzle is located above the platform plane, the outlet direction of the injection nozzle forms an acute angle with the horizontal vertical line of the track, and a plurality of one-way pressure limiting valves are alternately arranged on the outlet main pipe and the injection pipe, and the pressure limiting valve allows airflow to flow in the outlet main pipe and the injection pipe along the running direction of the train.
[0007] Furthermore, the air outlet direction of the air nozzle is inclined at an angle of 5 to 30° to the horizontal vertical line of the rail.
[0008] Furthermore, the main gas outlet pipe is connected to the gas supply system of the station.
[0009] Furthermore, the air jet nozzle is provided with a plurality of air jet holes, the air jet directions of the air jet holes are in the same plane, and the air jet directions of adjacent air jet holes form an angle therebetween.
[0010] Furthermore, a plurality of spotlights are arranged on the platform plane, and the irradiation directions of the spotlights are on the same plane, and the plane where the irradiation directions of the spotlights are located overlaps or intersects with the plane where the jet directions of the jet holes are located.
[0011] The Bernoulli effect formed by the car body below the platform plane on the airflow in the vicinity during the operation of the train is used as the power source for the rotation of the shaft. The drum is provided with an air inlet channel and an air outlet channel located outside the impeller, so that the higher-pressure air in the avoidance space flows to the lower-pressure area near the outer wall of the train, driving the impeller and the shaft to rotate. During the rotation of the shaft, the clean and fresh air connected to the station air-conditioning system is driven into the air intake main pipe through the turbo blower, and the airflow enters the jet pipe, and is ejected from the jet nozzle after a large pressure is formed in the jet pipe.
[0012] The effect is as follows:
[0013] The jet directions of each jet hole are in the same plane, that is, toward the inner side of the platform plane, forming a sensible air curtain that "drives passengers away from the train". Passengers who are close to the warning line will be prompted by the airflow and stay away from one side of the train, especially children, the elderly, the blind, etc. The sensible warning effect is more effective and direct.
[0014] The red or yellow spotlights overlap or intersect with the air curtain to form a colored air curtain "warning plane or warning line". The color can also be made more conspicuous by humidifying the air flow with water mist. The colored "barrier" formed by the air curtain can not only play an intuitive warning role, but also provide aesthetic and ornamental value to the station.
[0015] The existence of airflow forms an "air curtain isolation screen" between the train track and the platform when the train is about to enter the station. This "air curtain isolation screen" can give passengers an advance notice before the train enters the station, so that the passengers "received the airflow notice" immediately move away from one side of the track, eliminating the adverse effects caused by the Bernoulli effect and forming a safety hazard for passengers due to their close distance to the train.
[0016] Since the platform is flat and does not require facilities such as fences, the work of manual supervision and reminders on the platform before passengers board the train can be reduced or eliminated.
[0017] The airflow intensity of the air curtain corresponds to the speed of the vehicle and the size of the safety hazard caused by the attraction effect. The air source comes from the station's air-conditioning system, which provides airflow at a comfortable temperature to reduce the discomfort caused to passengers.
[0018] Since the train cannot enter the station too fast, the maximum air pressure of the air curtain airflow cannot be too high. The aperture of the air outlet is set so that it will not cause harm to passengers. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is an overhead view of the platform and tracks.
[0020] Figure 2 This is a cross-section of the platform.
[0021] Figure 3 It is a cross-sectional view of the track plane at one end of the platform where the train enters the station.
[0022] Figure 4 It is a schematic diagram of the parallel connection of each pressure difference driving unit.
[0023] Figure 5 is a cross-sectional view of a pressure difference drive unit.
[0024] Figure 6 yes Figure 5 Cross-sectional view along the AA direction.
[0025] Figure 7 yes Figure 5 Cross-sectional view along the BB direction.
[0026] Figure 8 is a cross-sectional view of the jet pipe.
[0027] Fig. 9 It is a cross-sectional view of the exhaust main pipe.
[0028] In the figure, 1, track plane; 2, platform plane; 3, pressure difference driving unit; 31, sleeve; 32, rotating shaft; 33, turbo blower; 4, air outlet main pipe; 41, jet pipe; 5, jet nozzle; 6, one-way pressure limiting valve. DETAILED DESCRIPTION
[0029] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
[0030] like Figures 1 to 9 As shown, it includes a track plane 1 and a platform plane 2 located on both sides of the track plane 1, the platform plane 2 is higher than the track plane 1, and one end of the platform plane 2 in the train entry direction is provided with a plurality of pressure difference driving units 3 located on one side or both sides of the track, the pressure difference driving unit 3 includes a sleeve 31 fixed on the track plane 1, a rotating shaft 32 rotatably connected in the sleeve 31, an impeller fixed on the rotating shaft 32, and a turbo blower 33 fixed on the rotating shaft 32 above the impeller, and the air outlet end of each turbo blower 33 is connected to An air outlet main pipe 4 is connected, and an air jet pipe 41 is connected to the end of the air outlet main pipe 4. The air jet pipe 41 is arranged below the platform plane 2 along a direction parallel to the train track. A plurality of air jet nozzles 5 are arranged on the air jet pipe 41. The air outlet ends of the air jet nozzles 5 are located above the platform plane 2. An acute angle is formed between the air outlet direction of the air jet nozzles 5 and the horizontal vertical line of the train track. A plurality of one-way pressure limiting valves 6 are alternately arranged on the air outlet main pipe 4 and the air jet pipe 41. The pressure limiting valves allow airflow to flow in the air outlet main pipe 4 and the air jet pipe 41 along the running direction of the train.
[0031] The air outlet direction of the air nozzle 5 is inclined at an angle of 5 to 30° to the horizontal vertical line of the rail.
[0032] The gas outlet main pipe 4 is connected to the gas supply system of the station.
[0033] The air jet nozzle 5 has a plurality of air jet holes, the air jet directions of the air jet holes are in the same plane, and the air jet directions of adjacent air jet holes form an angle.
[0034] A plurality of spotlights are arranged on the platform plane 2, and the irradiation directions of the spotlights are on the same plane, and the plane where the irradiation directions of the spotlights are located overlaps or intersects with the plane where the blast directions of the blast holes are located.
[0035] The Bernoulli effect formed by the car body part located below the platform plane 2 on the airflow in the vicinity during the operation of the train is used as the power source for the rotation of the rotating shaft 32. The rotating drum is provided with an air inlet channel and an air outlet channel located outside the impeller, so that the higher-pressure air in the avoidance space flows to the lower-pressure area near the outer wall of the train, driving the impeller and the rotating shaft 32 to rotate. During the rotation of the rotating shaft 32, the clean and fresh air connected to the station air-conditioning system is driven into the air intake main pipe through the turbo blower 33, and the air flow enters the jet pipe 41. After a large pressure is formed in the jet pipe 41, it is ejected by the jet nozzle 5.
[0036] The effect is as follows:
[0037] The jet directions of each jet hole are in the same plane, that is, toward the inner side of the platform plane 2, forming a sensible air curtain that "drives passengers away from the train". Passengers who are close to the warning line will be prompted by the sensible airflow and stay away from one side of the train, especially children, the elderly, the blind, etc. The sensible warning effect is more effective and direct.
[0038] The red or yellow spotlights overlap or intersect with the air curtain to form a colored air curtain "warning plane or warning line". The color can also be made more conspicuous by humidifying the air flow with water mist. The colored "barrier" formed by the air curtain can not only play an intuitive warning role, but also provide aesthetic and ornamental value to the station.
[0039] The existence of airflow forms an "air curtain isolation screen" between the train track and the platform when the train is about to enter the station. This "air curtain isolation screen" can give passengers an advance notice before the train enters the station, so that the passengers "received the airflow notice" immediately move away from one side of the track, eliminating the adverse effects caused by the Bernoulli effect and forming a safety hazard for passengers due to their close distance to the train.
[0040] Since the platform surface 2 is flat and does not require facilities such as fences, the work of manual supervision and reminders on the platform before passengers get on the train can be reduced or eliminated.
[0041] The airflow intensity of the air curtain corresponds to the speed of the vehicle and the size of the safety hazard caused by the attraction effect. The air source comes from the station's air-conditioning system, which provides airflow at a comfortable temperature to reduce the discomfort caused to passengers.
[0042] Since the train cannot enter the station too fast, the maximum air pressure of the air curtain airflow cannot be too high. The aperture of the air outlet is set so that it will not cause harm to passengers.
[0043] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
Claims
1. A device for warning passengers to stay away from train tracks before a train enters a station, characterized in that: The invention comprises a track plane (1) and a platform plane (2) located on both sides of the track plane (1), wherein the platform plane (2) is higher than the track plane (1), and a plurality of pressure difference drive units (3) located on one side or both sides of the track are arranged at one end of the platform plane (2) in the direction of train entry, wherein the pressure difference drive units (3) comprise a sleeve (31) fixed on the track plane (1), a rotating shaft (32) rotatably connected to the sleeve (31), an impeller fixed on the rotating shaft (32), and a turbo blower (33) fixed on the rotating shaft (32) above the impeller, wherein the outlet end of each turbo blower (33) is connected to an outlet port. A main pipe (4), the end of the air outlet main pipe (4) is connected to an injection pipe (41), the injection pipe (41) is arranged below the platform plane (2) along a direction parallel to the train track, a plurality of injection nozzles (5) are arranged on the injection pipe (41), the air outlet ends of the injection nozzles (5) are located above the platform plane (2), the air outlet directions of the injection nozzles (5) form an acute angle with a horizontal vertical line of the train track, and a plurality of one-way pressure limiting valves (6) are alternately arranged on the air outlet main pipe (4) and the injection pipe (41), the pressure limiting valves allowing air flow to flow in the air outlet main pipe (4) and the injection pipe (41) along the running direction of the train; The air outlet direction of the air nozzle (5) is inclined at an angle of 5 to 30° to the horizontal vertical line of the rail; The main gas outlet pipe (4) is connected to the gas supply system of the station; The air jet nozzle (5) has a plurality of air jet holes, the air jet directions of the air jet holes are in the same plane, and the air jet directions of adjacent air jet holes form an angle.
2. A device for warning passengers to stay away from train tracks before a train enters a station according to claim 1, characterized in that: A plurality of spotlights are arranged on the platform plane (2), the irradiation directions of the spotlights are on the same plane, and the plane where the irradiation directions of the spotlights are located overlaps or intersects with the plane where the jet directions of the jet holes are located.