Urban rail transit tunnel interval water level monitoring and alarming device

Abstract

The utility model provides an urban rail transit tunnel interval water level monitoring alarm device which comprises a water level mark, an alarm relay and an alarm lamp. The water level mark is arranged in a tunnel section, and a plurality of groups of wiring terminals with bare jumpers are arranged on the water level mark; wherein one group of wiring terminals are electrically connected with an indoor power supply positive electrode and an indoor power supply negative electrode through wires respectively, and the alarm relay is connected between the wiring terminals and the indoor power supply to form an alarm relay excitation loop; the alarm lamp is electrically connected with the indoor power supply anode and the indoor power supply cathode to form an alarm lamp driving loop, and the normally closed contact of the alarm relay is connected to the alarm lamp driving loop. When the ponding water level of the tunnel section reaches the alarm water level, the wiring terminal is connected with the ground to form a short circuit, the relay loses power and falls down to lighten the alarm lamp, station control personnel set an emergency stop or train buckling instruction for the train in the corresponding section according to the display of the alarm lamp, the train is prevented from entering the ponding section, and the safety of the train and passengers is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of urban rail transit, in particular to a water level monitoring and alarm device for a tunnel section of an urban rail transit. Background Art

[0002] When an urban rail train is running in a tunnel section, if extreme rainfall or other factors cause the water level in the tunnel section to rise rapidly, a short circuit in the traction equipment may occur when the train passes through this area, causing an emergency stop. As the water level continues to rise, the accumulated water will enter the compartment of the emergency-stopped train, which will have a great impact on the life safety of passengers who are unable to evacuate in time. Therefore, there is an urgent need for a device that can monitor and alarm the water level of accumulated water in the tunnel section of an urban rail train. Utility Model Content

[0003] In view of the defects in the prior art, the purpose of the utility model is to provide a water level monitoring and alarm device for an urban rail transit tunnel section.

[0004] The water level monitoring and alarm device for urban rail transit tunnel section provided by the utility model comprises a water level monitoring and alarm unit, wherein the water level monitoring and alarm unit comprises a water level mark, an alarm relay and an alarm light;

[0005] The water level mark is arranged in the tunnel section, and a plurality of wiring terminals with bare jumpers are provided on the water level mark, and the alarm relay and the alarm light are installed indoors in the station;

[0006] In a group of wiring terminals, one of the wiring terminals is electrically connected to the positive pole of the indoor power supply through a wire, and the other wiring terminal is electrically connected to the negative pole of the indoor power supply through a wire. The alarm relay is connected between the wiring terminal and the indoor power supply to form an alarm relay excitation circuit;

[0007] The alarm light is electrically connected to the positive pole of the indoor power supply and the negative pole of the indoor power supply respectively to form an alarm light driving circuit, and the normally open contact of the alarm relay is connected to the alarm light driving circuit.

[0008] Preferably, a plurality of water level scales are provided on the water level mark along the height direction, and the positions of the plurality of groups of connection terminals are arranged in sequence according to the different water level scales.

[0009] Preferably, the alarm light comprises a self-resetting lighted button, and the normally closed contact of the self-resetting lighted button is connected to the alarm relay excitation circuit.

[0010] Preferably, the water level monitoring alarm unit further comprises a protective resistor, which is connected to the alarm relay excitation circuit, and the two ends of the protective resistor are respectively connected to the positive pole of the indoor power supply and the water level mark wiring terminal.

[0011] Preferably, the alarm relay and the protective resistor are both installed in the station equipment room, and the alarm light is installed on the station IBP control panel.

[0012] Preferably, the water level mark comprises an insulating water level mark.

[0013] Preferably, the alarm relay comprises a gravity-type electromagnetic relay.

[0014] Preferably, the water level monitoring alarm unit further comprises a relay circuit breaker and an alarm light circuit breaker;

[0015] The relay circuit breaker is connected to the alarm relay excitation circuit and is located at the most upstream of the alarm relay excitation circuit. The alarm light circuit breaker is connected to the alarm light driving circuit and is located at the most upstream of the alarm light driving circuit.

[0016] Preferably, there are multiple water level monitoring and alarm units, and multiple water level markers in the multiple water level monitoring and alarm units are installed on the trackside at different mileage positions in the tunnel section according to the tunnel section track line and water level monitoring requirements.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The utility model has a simple structure and is easy to operate. By setting a bare jumper on the wiring terminal of the water level mark and connecting it to the indoor power supply to form an alarm relay excitation circuit, when the water level at the corresponding position of the tunnel section reaches the alarm water level, the corresponding wiring terminal and the ground are connected by the conductivity of water to form a short circuit, and the relay loses power and falls, so that the alarm light is lit. The station control personnel set an emergency stop or detainment command to the corresponding section train according to the display of the alarm light, so that the corresponding train makes an emergency stop on the platform or other safe range to prevent the train from entering the flooded section, and organize passenger evacuation or train rescue to ensure the safety of the train and passengers.

[0019] 2. The utility model adopts the technical means of connecting the normally closed contact of the self-resetting lighted button to the alarm relay excitation circuit. Under normal circumstances, the station control personnel can cut off and conduct the alarm relay excitation circuit by pressing the alarm light button to light up and extinguish the alarm light, thereby ensuring that the water level monitoring alarm device in the urban rail transit tunnel section is in normal working condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0021] Figure 1 It is a schematic diagram of the circuit principle of the utility model;

[0022] Figure 2 It is a cross-sectional schematic diagram of the installation of the water level marker in the tunnel section of the utility model;

[0023] Figure 3 It is an isometric view of the water level mark in the utility model.

[0024] The figure shows:

[0025] Water level mark 1 Warning light 3

[0026] Alarm relay 2 bare jumper 4 DETAILED DESCRIPTION

[0027] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0028] The utility model discloses a water level monitoring and alarm device for a section of a tunnel in urban rail transit. By connecting an alarm relay excitation circuit to a tunnel section water level mark, a normally closed contact of the alarm relay is used to control the lighting and extinguishing of an alarm lamp. Once the water level of the tunnel section water level mark exceeds the alarm water level, the alarm relay excitation circuit is short-circuited, the relay falls, and the alarm lamp is lit. A station controller sets an emergency stop or train detention command to a corresponding section train according to the display of the alarm lamp, controls the corresponding train to make an emergency stop on a platform or other safe range, avoids the train from entering a waterlogged section, organizes passenger evacuation or train rescue, and ensures the safety of the train and passengers.

[0029] The water level monitoring and alarm device for urban rail transit tunnel section provided by the utility model comprises a water level monitoring and alarm unit, which comprises a water level mark 1, an alarm relay 2 and an alarm light 3; the water level mark 1 is arranged in the tunnel section, and a plurality of groups of connection terminals with bare jumpers 4 are arranged on the water level mark 1, and the alarm relay 2 and the alarm light 3 are both installed in the station room; preferably, the water level mark 1 comprises an insulated water level mark. The alarm relay 2 comprises a gravity electromagnetic relay.

[0030] In a group of wiring terminals, one of the wiring terminals is electrically connected to the positive pole of the indoor power supply through a wire, and the other wiring terminal is electrically connected to the negative pole of the indoor power supply through a wire. The alarm relay 2 is connected between the wiring terminal and the indoor power supply to form an alarm relay excitation circuit; the alarm light 3 is electrically connected to the positive pole of the indoor power supply and the negative pole of the indoor power supply respectively to form an alarm light drive circuit, and the normally closed contact of the alarm relay 2 is connected to the alarm light drive circuit. When the accumulated water level exceeds the alarm water level of the water level mark arranged at the current position, the alarm relay excitation circuit corresponding to the water level mark is short-circuited, the alarm relay falls, and the normally closed contact connects to the corresponding alarm light drive circuit, and the alarm light lights up to sound an alarm.

[0031] The water level mark 1 is provided with a plurality of water level scales in the height direction, and the positions of the plurality of groups of connection terminals are arranged in sequence according to the different water level scales. The alarm light 3 comprises a self-resetting lighted button, and the normally closed contact of the self-resetting lighted button is connected to the alarm relay excitation circuit. Under normal circumstances, the station controller presses the self-resetting button of the alarm light to cut off and restore the alarm relay excitation circuit, so that the alarm light is turned on and off, and the working state of the tunnel section water level monitoring alarm device is detected to be normal.

[0032] The water level monitoring alarm unit also includes a protective resistor, which is connected to the alarm relay excitation circuit, and the two ends of the protective resistor are respectively connected to the positive pole of the indoor power supply and the water level mark 1 terminal. The alarm relay 2 and the protective resistor are both installed in the station equipment room, and the alarm light 3 is installed in the station IBP control panel. The water level monitoring alarm unit also includes a relay circuit breaker and an alarm light circuit breaker; the relay circuit breaker is connected to the alarm relay excitation circuit and is located at the most upstream of the alarm relay excitation circuit, and the alarm light circuit breaker is connected to the alarm light drive circuit and is located at the most upstream of the alarm light drive circuit.

[0033] There are multiple water level monitoring and alarm units, and multiple water level markers 1 in the multiple water level monitoring and alarm units are installed on the trackside at different mileage positions in the tunnel section according to the tunnel section track line and water level monitoring requirements.

[0034] Example 1

[0035] This embodiment discloses a water level monitoring and alarm device for a section of an urban rail transit tunnel. Figure 1 As shown, including:

[0036] Alarm relays K1 to Kn and alarm lights L1 to Ln, the alarm relay is a gravity electromagnetic relay with a minimum excitation voltage of 16.8Vdc and a coil resistance of 1000 ohms, and its normally closed contact is connected to the drive circuit of the alarm light to control the lighting and extinguishing of the alarm light. The alarm light is a self-resetting illuminated button, and its normally closed contact is connected to the alarm relay excitation circuit to cut off or connect the alarm relay excitation circuit.

[0037] Water level mark 1 to water level mark n are arranged at different positions in the tunnel section, and have multiple groups of wiring terminals with bare jumpers, and the terminal positions are arranged according to different water level scales. When the water level at the water level mark reaches the wiring terminal position, the bare wire is connected to the earth through the water body.

[0038] Indoor power supply V and protection resistors R1 to Rn, the rated voltage of the power supply V is 48Vdc, the negative pole is connected to the ground, and is used to provide driving power for the alarm relay and the alarm light. The resistance of the protection resistors R1 to Rn is 1000 ohms, and the rated power is greater than 48V*48V / 1000Ω=2.3W. In this embodiment, a 10W protection resistor is selected to protect other devices in the circuit.

[0039] Relay circuit breakers CBK1 to CBKn, and alarm light circuit breakers CBL1 to CBLn, the primary terminals of CBK1 to CBKn are connected to the positive pole of the indoor power supply, and the secondary terminals are connected to the protection resistors R1 to Rn, the primary terminals of CBL1 to CBLn are connected to the positive pole of the indoor power supply, and the secondary terminals are connected to the normally closed contacts of the alarm relays K1 to Kn.

[0040] The alarm relays K1 to Kn and the protective resistors R1 to Rn are installed in the station equipment room, and the alarm lights L1 to Ln are installed in the station IBP control panel. The water level markers 1 to n are made of insulating materials and are installed on the rails at different mileage positions in the tunnel section according to the tunnel section track line and water level monitoring requirements. The two sides of the wiring terminals on the water level markers 1 to n are respectively connected to the indoor protective resistors and the normally closed contacts of the alarm lights to form an alarm relay coil excitation circuit. The wiring terminals at different water level scales can be selected according to the tunnel section water level alarm requirements.

[0041] The working principle of the utility model is as follows:

[0042] When extreme rainfall or other reasons cause water accumulation in the tunnel, and the water level exceeds the alarm water level of the water level mark arranged at the current position, the water level submerges the wiring terminals on the water level mark and conducts with the earth through the water body. The alarm relay excitation circuit corresponding to the water level mark is short-circuited, the alarm relay loses power and falls, and the normally closed contacts close to connect the corresponding alarm light drive circuit, and the alarm light lights up and sounds an alarm. After receiving the alarm information, the station controller issues a corresponding emergency stop or train detention command according to the tunnel section position corresponding to the alarm, controls the relevant train to make an emergency stop on the platform or other safe range to avoid entering the flooded section, and organizes passenger evacuation or train rescue to ensure the safety of the train and passengers. Under normal circumstances, the station controller presses the self-resetting button of the alarm light to cut off and restore the alarm relay excitation circuit, so that the alarm light lights up and goes out, and detects whether the working status of the tunnel section water level monitoring alarm device is normal.

[0043] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. A water level monitoring and alarm device for urban rail transit tunnel section, characterized in that: It comprises a water level monitoring and alarm unit, wherein the water level monitoring and alarm unit comprises a water level mark (1), an alarm relay (2) and an alarm light (3); The water level mark (1) is arranged in a tunnel section, and a plurality of groups of connection terminals with bare jumpers (4) are provided on the water level mark (1); the alarm relay (2) and the alarm light (3) are both installed in the station room; In a group of wiring terminals, one of the wiring terminals is electrically connected to the positive pole of the indoor power supply through a wire, and the other wiring terminal is electrically connected to the negative pole of the indoor power supply through a wire. The alarm relay (2) is connected between the wiring terminal and the indoor power supply to form an alarm relay excitation circuit; The alarm light (3) is electrically connected to the positive pole of the indoor power supply and the negative pole of the indoor power supply respectively to form an alarm light drive circuit, and the normally closed contact of the alarm relay (2) is connected to the alarm light drive circuit.

2. The urban rail transit tunnel section water level monitoring and alarm device according to claim 1 is characterized in that: The water level mark (1) is provided with a plurality of water level scales along the height direction, and the positions of the plurality of groups of connection terminals are arranged in sequence according to the different water level scales.

3. The urban rail transit tunnel section water level monitoring and alarm device according to claim 1 is characterized in that: The alarm light (3) comprises a self-resetting lighted button, the normally closed contact of which is connected to the alarm relay excitation circuit.

4. The urban rail transit tunnel section water level monitoring and alarm device according to claim 1 is characterized in that: The water level monitoring alarm unit also includes a protective resistor, which is connected to the alarm relay excitation circuit, and the two ends of the protective resistor are respectively connected to the positive pole of the indoor power supply and the water level mark (1) connection terminal.

5. The urban rail transit tunnel section water level monitoring and alarm device according to claim 4 is characterized in that: The alarm relay (2) and the protective resistor are both installed in the station equipment room, and the alarm light (3) is installed in the station IBP control panel.

6. The urban rail transit tunnel section water level monitoring and alarm device according to claim 1 is characterized in that: The water level mark (1) comprises an insulating water level mark.

7. The urban rail transit tunnel section water level monitoring and alarm device according to claim 1 is characterized in that: The alarm relay (2) comprises a gravity-type electromagnetic relay.

8. The urban rail transit tunnel section water level monitoring and alarm device according to claim 1 is characterized in that: The water level monitoring alarm unit also includes a relay circuit breaker and an alarm light circuit breaker; The relay circuit breaker is connected to the alarm relay excitation circuit and is located at the most upstream of the alarm relay excitation circuit. The alarm light circuit breaker is connected to the alarm light driving circuit and is located at the most upstream of the alarm light driving circuit.

9. The urban rail transit tunnel section water level monitoring and alarm device according to claim 1 is characterized in that: The number of the water level monitoring and alarm units is multiple, and the multiple water level markers (1) in the multiple water level monitoring and alarm units are respectively installed on the trackside at different mileage positions in the tunnel section according to the tunnel section track line and water level monitoring requirements.

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