Rail transit fire handling device

Abstract

The utility model discloses a rail transit fire disaster processing device, including a plurality of fire smoke processing spare that sets up in turn along the length direction of subway tunnel, fire smoke processing spare includes the arc shape smoke exhaust duct of subway tunnel top and the plate shape smoke exhaust duct of subway tunnel both side wall, the inboard of arc shape smoke exhaust duct is equipped with a plurality of arc open, two plate shape smoke exhaust ducts are respectively equipped with a plurality of rectangular openings on the side of mutual approach, the top of arc shape smoke exhaust duct is equipped with the smoke exhaust vertical pipe of intercommunication, the inside of smoke exhaust vertical pipe is equipped with smoke exhaust fan. The utility model discloses a fire smoke processing spare's work can deliver the partial smoke of passing to the outside of tunnel, thereby reduces the concentration of harmful smoke in the tunnel to the direction of farther tunnel mouth flow, thereby reduces the amount of passenger inhaling harmful gas that part escapes to the direction of farther tunnel mouth, reduces the personnel casualty.

Description

Technical Field

[0001] This utility model belongs to the technical field of fire treatment equipment, and in particular relates to a fire treatment device for rail transit. Background Technology

[0002] Common rail transit systems include traditional railways (ordinary railways, intercity railways, and suburban railways), subways, light rail, and trams. In addition, there are newer rail transit systems such as maglev and monorail. In the event of a fire in a subway tunnel, the driver must promptly transmit the fire situation to the external dispatch center, vent the smoke generated within the tunnel to the outside, and extinguish the fire in a timely manner to minimize harm to the subway and other personnel.

[0003] Subway tunnels are equipped with ventilation systems, such as the ventilation and smoke exhaust system for subway tunnel fires disclosed in CN207437115U. The ventilation system includes tunnel fans permanently installed at both ends of the subway tunnel. In the event of a fire in the tunnel, the tunnel fan at the end furthest from the fire point can quickly exhaust harmful smoke to that end of the tunnel, while the tunnel fan at the end closer to the fire point delivers fresh air, thus facilitating passengers to escape to the nearest tunnel entrance and providing necessary conditions for safe evacuation of passengers and fire fighting and disaster relief.

[0004] However, when a fire breaks out in a tunnel, most passengers are in a state of panic, and some passengers have difficulty distinguishing which direction is the nearest tunnel entrance. As a result, some passengers may choose to escape towards the farthest tunnel entrance. The existing ventilation system exhausts harmful smoke through the tunnel fans at the farthest point of the fire and supplies fresh air through the tunnel fans at the nearthest point of the fire. This causes harmful smoke to flow in the tunnel towards the farthest tunnel entrance, which in turn causes some passengers who escape towards the farthest tunnel entrance to inhale a large amount of harmful gas, which may cause casualties in severe cases. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rail transit fire handling device to solve the technical problems mentioned in the background art.

[0006] This utility model provides the following technical solution:

[0007] A fire suppression device for rail transit includes several fire smoke suppression components arranged sequentially along the length of a subway tunnel. Each fire smoke suppression component includes an arc-shaped smoke exhaust duct located at the top of the subway tunnel and plate-shaped smoke exhaust ducts located on both side walls of the subway tunnel. The two ends of the arc-shaped smoke exhaust duct are respectively connected to the upper ends of the two plate-shaped smoke exhaust ducts. The inner side of the arc-shaped smoke exhaust duct has several arc-shaped openings, and the side surfaces of the two plate-shaped smoke exhaust ducts that are close to each other have several rectangular openings. A smoke exhaust vertical pipe is connected to the top of the arc-shaped smoke exhaust duct. The upper end of the smoke exhaust vertical pipe extends through the upper surface of the subway tunnel to the ground. A smoke exhaust fan is installed inside the smoke exhaust vertical pipe. The smoke exhaust fan is connected to the inner wall of the smoke exhaust vertical pipe through several connecting rods, and the smoke exhaust fan is equipped with fan blades.

[0008] Preferably, the dimensions of the two ends of the arc-shaped smoke exhaust pipe are the same as the dimensions of the upper end of the plate-shaped smoke exhaust pipe.

[0009] Preferably, the cross-section of the arc-shaped smoke exhaust duct is rectangular, and the inner side of the arc-shaped smoke exhaust duct is connected to the inner wall of the subway tunnel through a plurality of first U-shaped connecting plates, and the plurality of first U-shaped connecting plates are arranged sequentially along the arc of the arc-shaped smoke exhaust duct.

[0010] Preferably, the two ends of the first U-shaped connecting plate are connected to the inner wall of the subway tunnel by expansion bolts.

[0011] Preferably, the cross-section of the plate-shaped smoke exhaust duct is also rectangular, and the plate-shaped smoke exhaust duct is connected to the inner wall of the subway tunnel through a plurality of second U-shaped connecting plates, and the plurality of second U-shaped connecting plates are arranged sequentially along the length direction of the plate-shaped smoke exhaust duct.

[0012] Preferably, the two ends of the second U-shaped connecting plate are connected to the inner wall of the subway tunnel by expansion bolts.

[0013] Preferably, a plurality of the arc-shaped openings are arranged sequentially along the arc direction of the arc-shaped exhaust pipe, and a first filter screen is provided in each of the arc-shaped openings.

[0014] Preferably, the plurality of rectangular openings are arranged sequentially along the length of the plate-shaped exhaust duct, and a second filter screen is provided in each rectangular opening.

[0015] Preferably, the two ends of the arc-shaped exhaust pipe are respectively provided with a first annular connecting plate along the circumference of its port, and the upper end of the plate-shaped exhaust pipe is provided with a second annular connecting plate along the circumference of its port. The first annular connecting plate and the second annular connecting plate are connected by a plurality of fastening bolts.

[0016] Preferably, an annular sealing gasket is also provided between the first annular connecting plate and the second annular connecting plate.

[0017] Preferably, a rain cap is also provided above the upper port of the smoke exhaust vertical pipe, and the inner side of the rain cap is connected to the upper end of the smoke exhaust vertical pipe through a support member.

[0018] Preferably, the rain cap is coaxially arranged with the smoke exhaust vertical pipe, and the maximum diameter of the lower end of the rain cap is greater than the outer diameter of the smoke exhaust vertical pipe.

[0019] Preferably, the support member is one of a support rod or an electric cylinder.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This utility model discloses a fire suppression device for rail transit. By sequentially installing multiple fire smoke suppression devices along the length of a subway tunnel, the device can transport some of the smoke to the outside of the tunnel, thereby reducing the concentration of harmful smoke flowing towards the farthest tunnel entrance. This reduces the amount of harmful gas inhaled by passengers escaping towards the farthest tunnel entrance, thus reducing casualties. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram showing the distribution of the fire smoke treatment components of this utility model.

[0024] Figure 2 This is a schematic diagram of the fire smoke treatment component of this utility model.

[0025] Figure 3 This is a schematic diagram of the arc-shaped smoke exhaust pipe structure of this utility model.

[0026] Figure 4 This is a schematic diagram of the plate-shaped smoke exhaust duct structure of this utility model.

[0027] Figure 5 This is a schematic diagram of the second U-shaped connector of this utility model.

[0028] Figure 6 This is a structural diagram of the support member of this utility model when it is a support rod.

[0029] Figure 7This is a structural diagram of the support component of this utility model when it is an electric cylinder. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] Example 1

[0033] Please see Figure 1-6As shown, a fire suppression device for rail transit includes several fire smoke suppression components 2 arranged sequentially along the length of a subway tunnel 1. Each fire smoke suppression component 2 includes an arc-shaped smoke exhaust pipe 3 located at the top of the subway tunnel 1 and plate-shaped smoke exhaust pipes 4 located on both side walls of the subway tunnel 1. The two ends of the arc-shaped smoke exhaust pipe 3 are respectively connected to the upper ends of the two plate-shaped smoke exhaust pipes 4. The inner side of the arc-shaped smoke exhaust pipe 3 is provided with several arc-shaped openings 6. The side surfaces of the two plate-shaped smoke exhaust pipes 4 that are close to each other are respectively provided with several rectangular openings 7. The top of the arc-shaped smoke exhaust pipe 3 is connected to a smoke exhaust vertical pipe 5. The upper end of the smoke exhaust vertical pipe 5 extends through the upper surface of the subway tunnel 1 to the ground. A smoke exhaust fan 9 is installed inside the smoke exhaust vertical pipe 5. The smoke exhaust fan 9 is connected to the inner wall of the smoke exhaust vertical pipe 5 through several connecting rods. The smoke exhaust fan 9 is provided with fan blades. The operation of the smoke exhaust fan 9 creates negative pressure at the lower end of the smoke exhaust vertical pipe 5, the inner cavity of the arc-shaped smoke exhaust pipe 3, and the plate-shaped smoke exhaust pipe 4. This negative pressure then creates negative pressure at the arc-shaped opening 6 and the rectangular opening 7, causing air and harmful gases near the arc-shaped opening 6 and the rectangular opening 7 to be drawn into the inner cavity of the arc-shaped smoke exhaust pipe 3 and the plate-shaped smoke exhaust pipe 4, and finally discharged to the outside through the smoke exhaust vertical pipe 5. By sequentially installing multiple fire smoke treatment devices along the length of the subway tunnel, the operation of these devices can transport some of the smoke passing through the tunnel to the outside, thereby reducing the concentration of harmful smoke flowing towards the farthest tunnel exit within the tunnel. This reduces the amount of harmful gases inhaled by passengers escaping towards the farthest tunnel exit, thus reducing casualties. It should be noted that, as Figure 1 As shown, when fire point 15 is close to the left end of the tunnel, the command and dispatch center controls several fire smoke treatment units 2 located to the right of fire point 15 to work together with the existing ventilation system of the subway tunnel. This reduces the concentration of harmful smoke flowing towards the far end of the tunnel, thereby reducing the amount of harmful gas inhaled by passengers escaping towards the far end of the tunnel and reducing casualties.

[0034] The dimensions of the two ends of the arc-shaped smoke exhaust pipe 3 are the same as the dimensions of the upper end of the plate-shaped smoke exhaust pipe 4.

[0035] The arc-shaped smoke exhaust duct 3 has a rectangular frame-like cross-section. Its inner surface is connected to the inner wall of the subway tunnel 1 via several first U-shaped connecting plates, which are sequentially arranged along the arc of the arc-shaped smoke exhaust duct 3. This arrangement of the arc-shaped smoke exhaust duct 3 allows for better conformity to the contours of the subway tunnel.

[0036] The two ends of the first U-shaped connecting plate are respectively connected to the inner wall of the subway tunnel 1 by expansion bolts.

[0037] The cross-section of the plate-shaped smoke exhaust pipe 4 is also rectangular. The plate-shaped smoke exhaust pipe 4 is connected to the inner wall of the subway tunnel 1 through a number of second U-shaped connecting plates 12. The number of second U-shaped connecting plates 12 are arranged sequentially along the length of the plate-shaped smoke exhaust pipe 4.

[0038] The two ends of the second U-shaped connecting plate 12 are respectively connected to the inner wall of the subway tunnel 1 by expansion bolts.

[0039] A plurality of arc-shaped openings 6 are arranged sequentially along the arc of the arc-shaped exhaust duct 3, and each arc-shaped opening 6 contains a first filter screen. A plurality of rectangular openings 7 are arranged sequentially along the length of the plate-shaped exhaust duct 4, and each rectangular opening 7 contains a second filter screen 8. The first filter screen and the second filter screen 8 are provided to prevent debris from entering the inner cavity of the arc-shaped exhaust duct 3 and the plate-shaped exhaust duct 4.

[0040] The two ends of the arc-shaped smoke exhaust duct 3 are respectively provided with a first annular connecting plate 10 along its circumference, and the upper end of the plate-shaped smoke exhaust duct 4 is provided with a second annular connecting plate 11 along its circumference. The first annular connecting plate 10 and the second annular connecting plate 11 are connected by a number of fastening bolts. An annular sealing gasket is also provided between the first annular connecting plate 10 and the second annular connecting plate 11. This facilitates the connection and disassembly of the arc-shaped smoke exhaust duct 3 and the two plate-shaped smoke exhaust ducts 4.

[0041] A rain cap 13 is also installed above the upper port of the smoke exhaust vertical pipe 5. The inner side of the rain cap is connected to the upper end of the smoke exhaust vertical pipe 5 through a support member 14. This reduces the amount of external dust and rainwater entering the subway tunnel through the upper port of the smoke exhaust vertical pipe 5.

[0042] The rain cap is coaxially arranged with the smoke exhaust vertical pipe 5, and the maximum diameter of the lower end of the rain cap is greater than the outer diameter of the smoke exhaust vertical pipe 5.

[0043] The support member 14 is a support rod.

[0044] Example 2

[0045] Please see Figure 7As shown, the difference from Embodiment 1 is that the support member 14 is an electric cylinder, which is vertically arranged. The cylinder body is connected to the upper side of the smoke exhaust vertical pipe 5, and the other end of the electric cylinder is connected to the inner side of the rain cap 13. Several electric cylinders are provided, and several electric cylinders work simultaneously. When the fire smoke treatment device 2 is not working, several electric cylinders are in a retracted state. At this time, the inner side of the rain cap 13 contacts the upper end of the smoke exhaust vertical pipe 5 and blocks the upper port of the smoke exhaust vertical pipe, further reducing the possibility of external dust and rainwater entering the tunnel. When the command and dispatch center controls several fire smoke treatment devices 2 to work, several electric cylinders extend simultaneously, causing the rain cap 13 to move upward, so that the upper port of the smoke exhaust vertical pipe 5 can be connected to the outside for smoke exhaust.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fire suppression device for rail transit, characterized in that: The system includes several fire smoke treatment components (2) arranged sequentially along the length of the subway tunnel (1). Each fire smoke treatment component (2) includes an arc-shaped smoke exhaust pipe (3) located at the top of the subway tunnel (1) and plate-shaped smoke exhaust pipes (4) located on both sides of the subway tunnel (1). The two ends of the arc-shaped smoke exhaust pipe (3) are connected to the upper ends of the two plate-shaped smoke exhaust pipes (4). The inner side of the arc-shaped smoke exhaust pipe (3) is provided with several arc-shaped openings (6). The two plate-shaped smoke exhaust pipes (4) are provided with several rectangular openings (7) on the side faces that are close to each other. The top of the arc-shaped smoke exhaust pipe (3) is connected to a smoke exhaust vertical pipe (5). The upper end of the smoke exhaust vertical pipe (5) extends through the upper surface of the subway tunnel (1) to the ground. A smoke exhaust fan (9) is installed inside the smoke exhaust vertical pipe (5).

2. The rail transit fire handling device according to claim 1, characterized in that, The cross-section of the arc-shaped smoke exhaust pipe (3) is rectangular. The inner side of the arc-shaped smoke exhaust pipe (3) is connected to the inner wall of the subway tunnel (1) through several first U-shaped connecting plates. Several first U-shaped connecting plates are arranged sequentially along the arc of the arc-shaped smoke exhaust pipe (3).

3. The rail transit fire handling device according to claim 2, characterized in that, The cross-section of the plate-shaped smoke exhaust pipe (4) is also rectangular. The plate-shaped smoke exhaust pipe (4) is connected to the inner wall of the subway tunnel (1) through several second U-shaped connecting plates (12). Several second U-shaped connecting plates (12) are arranged sequentially along the length direction of the plate-shaped smoke exhaust pipe (4).

4. The rail transit fire handling device according to claim 1, characterized in that, Several of the arc-shaped openings (6) are arranged sequentially along the arc of the arc-shaped exhaust pipe (3), and each of the arc-shaped openings (6) is provided with a first filter screen.

5. The rail transit fire handling device according to claim 1, characterized in that, The plurality of rectangular openings (7) are arranged sequentially along the length of the plate-shaped exhaust pipe (4), and each rectangular opening (7) is provided with a second filter screen (8).

6. The rail transit fire handling device according to claim 1, characterized in that, The two ends of the arc-shaped exhaust pipe (3) are respectively provided with a first annular connecting plate (10) along the circumference of its port, and the upper end of the plate-shaped exhaust pipe (4) is provided with a second annular connecting plate (11) along the circumference of its port. The first annular connecting plate (10) and the second annular connecting plate (11) are connected by a number of fastening bolts.

7. The rail transit fire handling device according to claim 1, characterized in that, A rain cap (13) is also provided above the upper port of the smoke exhaust vertical pipe (5), and the inner side of the rain cap is connected to the upper end of the smoke exhaust vertical pipe (5) through a support member (14).

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