Rail transit platform shielding door pneumatic load control system and method

Abstract

The application discloses a kind of rail transit platform shielding door pneumatic load control system and method, control system includes island platform, main line tunnel, arrival-departure line tunnel, main line side shielding door, arrival-departure line side shielding door, transverse pressure relief air pipe, electric air valve and pressure monitoring device, main line tunnel, arrival-departure line tunnel are located island platform two sides respectively, main line side shielding door separates island platform with main line tunnel, arrival-departure line side shielding door separates island platform with arrival-departure line tunnel, transverse pressure relief air pipe connects main line tunnel with arrival-departure line tunnel, pressure monitoring device is used to monitor the pressure in main line tunnel, electric air valve is set in transverse pressure relief air pipe, electric air valve is used to open and close transverse pressure relief air pipe, electric air valve, pressure monitoring device are connected station ventilation and smoke exhaust system, station ventilation and smoke exhaust system can be through the data of pressure monitoring device acquisition, the opening and closing of electric air valve is controlled.The application can effectively reduce the aerodynamic load that main line side shielding door receives.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail transit, in particular to a rail transit platform shielding door aerodynamic load control system and method. BACKGROUND

[0002] When a train passes through an underground station at high speed, strong pressure fluctuations will be caused due to the restriction of the building structure on air flow. Long-term action of the pressure fluctuations on the platform shielding door can cause fatigue damage, affecting the operation safety of the train and the station, and a reasonable technical solution needs to be taken to reduce the aerodynamic load on the platform shielding door. At present, a pressure relief well can be set to reduce the aerodynamic load on the platform shielding door, but this solution has the disadvantages of occupying building space, noise pollution, etc. SUMMARY

[0003] The present application aims at the problem that the prior art sets a pressure relief well to reduce the aerodynamic load on the platform shielding door, which has the disadvantages of occupying building space, noise pollution, etc., and provides a rail transit platform shielding door aerodynamic load control system and method.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0005] A rail transit platform shielding door aerodynamic load control system, comprising an island platform, a main line tunnel, a arrival-departure line tunnel, a main line side shielding door, an arrival-departure line side shielding door, a transverse pressure relief air pipe, an electric air valve and a pressure monitoring device, the main line tunnel and the arrival-departure line tunnel are located on both sides of the island platform respectively, the main line side shielding door separates the island platform from the main line tunnel, the arrival-departure line side shielding door separates the island platform from the arrival-departure line tunnel, the transverse pressure relief air pipe connects the main line tunnel and the arrival-departure line tunnel, the pressure monitoring device is installed in the main line tunnel, the pressure monitoring device is used for monitoring the pressure in the main line tunnel, the electric air valve is arranged in the transverse pressure relief air pipe, the electric air valve is used for opening and closing the transverse pressure relief air pipe, the electric air valve and the pressure monitoring device are connected with a station ventilation and smoke exhaust system, the station ventilation and smoke exhaust system can control the opening and closing of the electric air valve through the data collected by the pressure monitoring device.

[0006] The rail transit platform shielding door pneumatic load control system provided by the application is provided with a transverse pressure relief air pipe connected with the main line tunnel and the arrival-departure line tunnel, a pressure monitoring device for monitoring the pressure in the main line tunnel, and an electric air valve and the pressure monitoring device are connected with the station ventilation and smoke exhaust system. When a train passes through the main line tunnel at high speed, pressure fluctuation will occur in the main line tunnel, at this time, the data collected by the pressure monitoring device will change, and the station ventilation and smoke exhaust system can control the electric air valve to be opened according to the change of the pressure data, so that the transverse pressure relief air pipe is opened, the pressure fluctuation in the main line tunnel can be relieved to the arrival-departure line tunnel through the transverse pressure relief air pipe, the pressure fluctuation amplitude in the main line tunnel is reduced, and the pneumatic load borne by the shielding door on the main line side is effectively reduced. The application has the advantages of not changing the station layout, not occupying the building space, small noise pollution, and not affecting the functions of other systems in the station.

[0007] As a preferred scheme of the application, the number of the transverse pressure relief air pipes is greater than or equal to 2, and all the transverse pressure relief air pipes are arranged along the line direction. Further, the application can increase the pressure relief efficiency and improve the pressure relief effect by arranging multiple transverse pressure relief air pipes, and each transverse pressure relief air pipe can be provided with an electric air valve.

[0008] As a preferred scheme of the application, the distance between two adjacent transverse pressure relief air pipes is less than or equal to 10 m, so as to increase the pressure relief efficiency and improve the pressure relief effect.

[0009] As a preferred scheme of the application, the cross section of the transverse pressure relief air pipe is circular, and the diameter of the transverse pressure relief air pipe is greater than or equal to 30 cm, so as to increase the pressure relief efficiency and improve the pressure relief effect.

[0010] As a preferred scheme of the application, the shape of the electric air valve is consistent with the cross section shape of the transverse pressure relief air pipe, so as to increase the pressure relief efficiency and improve the pressure relief effect.

[0011] As a preferred scheme of the application, the transverse pressure relief air pipe is arranged below the island platform, and the transverse pressure relief air pipe is a concrete pipe, which is convenient for installation and maintenance of the transverse pressure relief air pipe.

[0012] As a preferred scheme of the application, the number of the pressure monitoring devices is two, and the two pressure monitoring devices are arranged at two ends of the island platform. The change of the pressure data collected by the pressure monitoring device close to the train arrival point can be used to determine whether the train has arrived, and then determine whether the electric air valve is opened. The change of the pressure data collected by the pressure monitoring device close to the train departure point can be used to determine whether the train has departed, and then determine whether the electric air valve is closed. The two pressure monitoring devices can improve the control accuracy of the pneumatic load.

[0013] The application further discloses a rail transit platform shielding door pneumatic load control method.

[0014] monitor the pressure in the main line tunnel through the pressure monitoring device,

[0015] When the pressure in the main line tunnel increases and the change rate is greater than 200 Pa / s, the electric air valve is opened under the control of the station ventilation and smoke exhaust system.

[0016] When the pressure in the main line tunnel decreases and the change rate is greater than 200 Pa / s, the electric air valve is closed under the control of the station ventilation and smoke exhaust system.

[0017] The rail transit platform shielding door pneumatic load control method has the advantages that the rail transit platform shielding door pneumatic load control system is simple in monitoring and control mode, high in monitoring and control precision, and good in pressure relief effect, and transient pressure can be relieved to the departure line tunnel through the transverse pressure relief air duct, so that the pneumatic load of the shielding door on the main line side can be effectively reduced.

[0018] As a preferred scheme of the application, the number of the pressure monitoring devices is two, and the pressure monitoring devices are arranged at two ends of the island platform, when the pressure monitoring device close to the train arrival point monitors that the pressure increases and the change rate is greater than 200 Pa / s, the electric air valve is opened under the control of the station ventilation and smoke exhaust system, and when the pressure monitoring device close to the train departure point monitors that the pressure decreases and the change rate is greater than 200 Pa / s, the electric air valve is closed under the control of the station ventilation and smoke exhaust system.

[0019] As a preferred scheme of the application, when the station ventilation and smoke exhaust system opens the heat or smoke exhaust function, the electric air valve is closed under the control of the station ventilation and smoke exhaust system, so that air can be prevented from flowing into the heat (smoke) air duct, and the influence on the heat (smoke) effect is reduced.

[0020] As described above, due to the adoption of the above technical scheme, the application has the following beneficial effects:

[0021] 1. The rail transit platform shielding door pneumatic load control system of the application, which is provided with a transverse pressure relief air pipe connecting the main line tunnel and the arrival-departure line tunnel, a pressure monitoring device for monitoring the pressure in the main line tunnel, and an electric air valve and the pressure monitoring device are connected to the station ventilation and smoke exhaust system. When a train passes through the main line tunnel at high speed, pressure fluctuation will occur in the main line tunnel, at which time the data collected by the pressure monitoring device will change, and the station ventilation and smoke exhaust system can control the electric air valve to open according to the change of the pressure data, so as to open the transverse pressure relief air pipe, and the pressure fluctuation in the main line tunnel can be relieved to the arrival-departure line tunnel through the transverse pressure relief air pipe, thereby reducing the pressure fluctuation amplitude in the main line tunnel and effectively reducing the pneumatic load on the shielding door on the main line side. The system has the advantages of not changing the station layout, not occupying building space, small noise pollution, and not affecting the functions of other systems in the station.

[0022] 2. The rail transit platform shielding door pneumatic load control method of the application, which adopts the above-mentioned rail transit platform shielding door pneumatic load control system and has the advantages of simple monitoring and control mode, high monitoring and control precision, and good pressure relief effect. The transient pressure can be relieved to the arrival-departure line tunnel through the transverse pressure relief air pipe, thereby effectively reducing the pneumatic load on the shielding door on the main line side.

[0023] 3. In some preferred schemes, when the station ventilation and smoke exhaust system opens the heat (smoke) exhaust function, the station ventilation and smoke exhaust system controls the electric air valve to close. Thus, air flow into the heat (smoke) exhaust air pipe can be prevented, and the influence on the heat (smoke) exhaust effect can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 Figure 1 is a transverse arrangement diagram of the rail transit platform shielding door pneumatic load control system of the application in an embodiment of an intercity railway underground station.

[0025] Fig. 2 Figure 2 is a longitudinal arrangement diagram of the rail transit platform shielding door pneumatic load control system of the application in an embodiment of an intercity railway underground station.

[0026] Marked in the figure: 1 - island platform, 2 - main line tunnel, 3 - arrival-departure line tunnel, 4 - shielding door on the main line side, 5 - shielding door on the arrival-departure line side, 6 - transverse pressure relief air pipe, 7 - electric air valve, 8 - pressure monitoring device, 9 - heat (smoke) exhaust air pipe. DETAILED DESCRIPTION

[0027] The application will be described in detail below with reference to the drawings.

[0028] In order to make the purpose, technical scheme and advantages of the application clearer, the application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the application and do not limit the application.

[0029] Example 1

[0030] like Figs. 1-2 As shown, a pneumatic load control system for rail transit platform screen doors includes an island platform 1, a main line tunnel 2, an arrival / departure line tunnel 3, a main line side screen door 4, an arrival / departure line side screen door 5, a transverse pressure relief duct 6, an electric air valve 7, and a pressure monitoring device 8.

[0031] The mainline tunnel 2 and the arrival / departure track tunnel 3 are located on both sides of the island platform 1, respectively. The mainline side platform screen door 4 separates the island platform 1 from the mainline tunnel 2, and the arrival / departure track side platform screen door 5 separates the island platform 1 from the arrival / departure track tunnel 3.

[0032] The two ends of the transverse pressure relief duct 6 are located at the main line tunnel 2 and the arrival / departure line tunnel 3, respectively, thus connecting the main line tunnel 2 and the arrival / departure line tunnel 3. The transverse pressure relief duct 6 is typically a through-hole pipe, allowing fluids such as air to flow within its cavity, thereby flowing from the main line tunnel 2 to the arrival / departure line tunnel 3.

[0033] The electric air valve 7 is disposed within the transverse pressure relief duct 6. By controlling the opening and closing of the electric air valve 7, the transverse pressure relief duct 6 can be opened and closed. Those skilled in the art will understand that the electric air valve 7 in this invention only needs to be an air valve that can be opened and closed electrically.

[0034] The pressure monitoring device 8 is installed inside the main tunnel 2 and is used to monitor the pressure inside the main tunnel 2. The pressure monitoring device 8 can be any device capable of collecting tunnel pressure, such as a pressure sensor, and it is ensured that the pressure monitoring device 8 is securely installed inside the tunnel.

[0035] Both the main line tunnel 2 and the arrival / departure line tunnel 3 are equipped with heat exhaust (smoke) ducts 9, and the station is equipped with a station ventilation and smoke exhaust system. The station ventilation and smoke exhaust system can control the opening and closing of the heat exhaust (smoke) ducts 9, and the electric air valve 7 and the pressure monitoring device 8 are both connected to the station ventilation and smoke exhaust system. The station ventilation and smoke exhaust system can control the opening and closing of the electric air valve 7 through the data collected by the pressure monitoring device 8.

[0036] The rail transit platform shielding door pneumatic load control system of the application sets a transverse pressure relief air pipe 6 connecting the main line tunnel 2 and the arrival-departure line tunnel 3, a pressure monitoring device 8 monitoring the pressure in the main line tunnel 2, and connects the electric air valve 7 and the pressure monitoring device 8 to the station ventilation and smoke exhaust system. When a train passes through the main line tunnel 2 at high speed, pressure fluctuation will occur in the main line tunnel 2, at which time the data collected by the pressure monitoring device 8 will change, and the station ventilation and smoke exhaust system controls the opening of the electric air valve 7 according to the change of the pressure data, thereby opening the transverse pressure relief air pipe 6, and the pressure fluctuation in the main line tunnel 2 can be relieved to the arrival-departure line tunnel 3 through the transverse pressure relief air pipe 6, reducing the pressure fluctuation amplitude in the main line tunnel 2, thereby effectively reducing the pneumatic load on the main line side shielding door 4. The application has the advantages of not changing the station layout, not occupying building space, small noise pollution, and not affecting the functions of other systems in the station.

[0037] Embodiment 2

[0038] On the basis of embodiment 1, further, in order to increase the pressure relief efficiency and improve the pressure relief effect, the number of the transverse pressure relief air pipes 6 is greater than or equal to 2, each of the transverse pressure relief air pipes 6 is arranged transversely (perpendicular to the line direction), all the transverse pressure relief air pipes 6 are arranged along the longitudinal direction (line direction) at intervals, and the interval between two adjacent transverse pressure relief air pipes 6 is less than or equal to 10 m. The cross section of the transverse pressure relief air pipe 6 is circular, and the diameter of the transverse pressure relief air pipe 6 is greater than or equal to 30 cm. The shape of the electric air valve 7 is consistent with the cross-sectional shape of the transverse pressure relief air pipe 6.

[0039] Further, in order to facilitate installation and maintenance, the transverse pressure relief air pipe 6 is fixed below the island platform 1, and the transverse pressure relief air pipe 6 is a concrete pipe.

[0040] Further, in order to improve the pressure monitoring precision and the control precision of the pneumatic load, the number of the pressure monitoring devices 8 is two, and each is arranged at the two ends of the island platform 1. The change of the pressure data collected by the pressure monitoring device 8 close to the train entry point can be used to determine whether a train has entered the station, and then determine whether to open the electric air valve 7. The change of the pressure data collected by the pressure monitoring device 8 close to the train exit point can be used to determine whether a train has exited the station, and then determine whether to close the electric air valve 7.

[0041] Embodiment 3

[0042] A rail transit platform shielding door pneumatic load control method, which adopts the rail transit platform shielding door pneumatic load control system of embodiment 1, comprises the following steps:

[0043] monitoring the pressure in the main line tunnel 2 by the pressure monitoring device 8,

[0044] When the pressure in the main tunnel 2 increases and the rate of change is greater than 200 Pa / s, the station ventilation and smoke exhaust system controls the opening of the electric air valve 7;

[0045] When the pressure in the main tunnel 2 decreases and the rate of change is greater than 200 Pa / s, the station ventilation and smoke exhaust system controls the closing of the electric air valve 7.

[0046] When the station ventilation and smoke exhaust system opens the heat (smoke) exhaust function (i.e. the main tunnel 2 or the arrival-departure tunnel 3 opens the heat (smoke) exhaust duct 9), the station ventilation and smoke exhaust system controls the closing of the electric air valve 7.

[0047] Embodiment 4

[0048] A rail transit platform shielding door pneumatic load control method, using a rail transit platform shielding door pneumatic load control system as described in Embodiment 2, comprising the following steps:

[0049] Monitoring the pressure in the main tunnel 2 through the pressure monitoring device 8,

[0050] When the pressure monitoring device 8 near the train arrival point monitors an increase in pressure and the rate of change is greater than 200 Pa / s, the station ventilation and smoke exhaust system controls the opening of the electric air valve 7;

[0051] When the pressure monitoring device 8 near the train departure point monitors a decrease in pressure and the rate of change is greater than 200 Pa / s, the station ventilation and smoke exhaust system controls the closing of the electric air valve 7.

[0052] When the station ventilation and smoke exhaust system opens the heat (smoke) exhaust function (i.e. the main tunnel 2 or the arrival-departure tunnel 3 opens the heat (smoke) exhaust duct 9), the station ventilation and smoke exhaust system controls the closing of the electric air valve 7.

[0053] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rail transit platform screen door aerodynamic load control system, characterized in that, The island platform (1), the main line tunnel (2), the arrival-departure line tunnel (3), the main line side shield door (4), the arrival-departure line side shield door (5), the transverse pressure relief air pipe (6), the electric air valve (7) and the pressure monitoring device (8), the main line tunnel (2) and the arrival-departure line tunnel (3) are located on both sides of the island platform (1) respectively, the main line side shield door (4) separates the island platform (1) from the main line tunnel (2), the arrival-departure line side shield door (5) separates the island platform (1) from the arrival-departure line tunnel (3), the transverse pressure relief air pipe (6) communicates the main line tunnel (2) and the arrival-departure line tunnel (3), the pressure monitoring device (8) is installed in the main line tunnel (2), the pressure monitoring device (8) is used for monitoring the pressure in the main line tunnel (2), the electric air valve (7) is arranged in the transverse pressure relief air pipe (6), the electric air valve (7) is used for opening and closing the transverse pressure relief air pipe (6), the electric air valve (7) and the pressure monitoring device (8) are connected with the station ventilation and smoke exhaust system, the station ventilation and smoke exhaust system can control the opening and closing of the electric air valve (7) through the data collected by the pressure monitoring device (8).

2. The air load control system of a platform screen door of rail transit according to claim 1, characterized in that, The number of the transverse pressure relief air pipes (6) is greater than or equal to 2, and all the transverse pressure relief air pipes (6) are arranged at intervals along the line direction.

3. The air load control system of a platform screen door of rail transit according to claim 2, characterized in that, The interval between two adjacent transverse pressure relief air pipes (6) is less than or equal to 10 m.

4. The air load control system of a platform screen door of rail transit according to claim 1, characterized in that, The cross section of the transverse pressure relief air pipe (6) is circular, and the diameter of the transverse pressure relief air pipe (6) is greater than or equal to 30 cm.

5. The air load control system of a platform screen door of rail transit according to claim 4, characterized in that, The shape of the electric air valve (7) is consistent with the cross-sectional shape of the transverse pressure relief air pipe (6).

6. The air load control system of a platform screen door of rail transit according to claim 1, characterized in that, The transverse pressure relief air pipe (6) is arranged below the island platform (1), and the transverse pressure relief air pipe (6) is a concrete pipe.

7. The air load control system of a platform screen door of a rail transit station according to any one of claims 1-6, characterized in that, The number of the pressure monitoring devices (8) is two, and they are arranged at two ends of the island platform (1) respectively.

8. A method for controlling the aerodynamic load of a rail transit platform shielding door, characterized in that, An air load control system for a platform screen door of a rail transit station is provided, which comprises the following steps: monitoring the pressure in the main line tunnel (2) by the pressure monitoring device (8), when the pressure in the main line tunnel (2) increases and the change rate is greater than 200 Pa / s, the station ventilation and smoke exhaust system controls the electric air valve (7) to open; when the pressure in the main line tunnel (2) decreases and the change rate is greater than 200 Pa / s, the station ventilation and smoke exhaust system controls the electric air valve (7) to close.

9. The method of claim 8, wherein, The number of the pressure monitoring devices (8) is two, and they are arranged at two ends of the island platform (1) respectively, when the pressure monitoring device (8) close to the train arrival point monitors that the pressure increases and the change rate is greater than 200 Pa / s, the station ventilation and smoke exhaust system controls the electric air valve (7) to open; when the pressure monitoring device (8) close to the train departure point monitors that the pressure decreases and the change rate is greater than 200 Pa / s, the station ventilation and smoke exhaust system controls the electric air valve (7) to close.

10. The method of claim 8 or 9, wherein, When the station ventilation and smoke exhaust system opens the heat or smoke exhaust function, the station ventilation and smoke exhaust system controls to close the electric air valve (7).

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