Subway tunnel rescue drainage and air supply system

Abstract

The invention provides a subway tunnel rescue drainage and air supply system, and relates to the technical field of emergency rescue, the subway tunnel rescue drainage and air supply system comprises a tunnel inflation barrier and an air supply device, the tunnel inflation barrier is provided with an air supply outlet leading to a tunnel, a drainage outlet and a soft door assembly capable of being hoisted and pulled; the air outlet end of the air supply device is communicated with the air supply outlet and an inflation inlet of the tunnel inflation barrier. A temporary soft wall is formed to block a tunnel portal after the air inflation barrier is inflated through the air blower, fresh air is continuously sent to the position near a generator set in the distance after air pressure is generated in the tunnel, and therefore drainage operation is smoothly carried out, the structure is simple, and carrying and using are convenient. The inflatable barrier is further provided with a soft leather door capable of being hung and pulled, and workers can enter and exit conveniently and convey goods and materials conveniently.

Description

Technical Field

[0001] This invention relates to the field of emergency rescue technology, and in particular to a drainage and ventilation system for emergency rescue in subway tunnels. Background Technology

[0002] Currently, the emergency drainage work after the subway tunnel is flooded is limited by the complexity of the site, the accessibility of the passage, and the enclosed nature of the subway tunnel. Moreover, the low-lying water collection areas of the subway tunnel are all located between two stations, where pumping stations are set up. The distance between the two stations is mostly about two kilometers, and the bottom of the tunnel slopes slowly from the platform to the pumping station.

[0003] In the event of rare flooding, the water level can submerge the electrical control cabinets inside the tunnel, rendering the pumping station inoperable. The first step is to drain the water from the bottom of the tunnel below the platform, and then proceed down the tracks to the pumping station to quickly drain the water from the lowest point between the two stations. If hydraulic pumps are used, the hydraulic energy is almost entirely lost over a 1-kilometer distance. If electric pumps are used, cable management, heat dissipation, and voltage drop all present problems. If a generator set is sent deep into the tunnel to power the pumps for drainage, the generator set requires sufficient fresh air. However, the limited space and insufficient fresh air in subway tunnels can easily lead to oxygen deficiency and carbon monoxide poisoning among workers. Simply adding jet fans at the tunnel entrance, even with a high-powered 100kW fan, would be insufficient to deliver fresh air to the vicinity of the generator set 1 kilometer away. Summary of the Invention

[0004] To address the problems existing in the prior art, this invention provides a subway tunnel emergency drainage and ventilation system. An inflatable barrier forms a temporary soft wall to block the tunnel entrance, generating wind pressure inside the tunnel and continuously delivering fresh air to the vicinity of a distant generator set, thereby facilitating drainage operations. The system is simple in structure and easy to carry and use.

[0005] This invention proposes a drainage and ventilation system for emergency repairs in subway tunnels, comprising an inflatable tunnel barrier and a ventilation device. The inflatable tunnel barrier is provided with an air outlet leading to the tunnel, a drainage outlet, and a hoistable flexible door assembly. The air outlet of the ventilation device leads to both the air outlet and the air inlet of the inflatable tunnel barrier.

[0006] Preferably, the present invention provides a subway tunnel emergency drainage and ventilation system, wherein the flexible door assembly includes a flexible door and a flexible door frame, the upper two sides of the flexible door frame are respectively provided with rotatable rollers, and the two sides of the flexible door are respectively connected with pull ropes, the extension ends of the pull ropes running vertically downward around the rollers.

[0007] Preferably, in the subway tunnel emergency drainage and ventilation system provided by the present invention, the vertically downward end of the pull rope is provided with a magnetic pendant.

[0008] Preferably, in the subway tunnel emergency drainage and ventilation system provided by the present invention, the number of rollers is set to two and they are distributed side by side.

[0009] Preferably, the subway tunnel emergency drainage and ventilation system provided by the present invention has magnetic strips on both sides of the soft door that magnetically attract the outer frame of the soft door.

[0010] Preferably, the subway tunnel emergency drainage and ventilation system provided by the present invention has a magnetic suction device for adsorbing the rails at the bottom of the soft door outer frame.

[0011] Preferably, in the subway tunnel emergency drainage and ventilation system provided by the present invention, the soft leather door is provided with multiple pull rope buckles on both sides corresponding to the pull rope.

[0012] Preferably, in the subway tunnel emergency drainage and ventilation system provided by the present invention, the bottom of the soft leather door is provided with a drop bar.

[0013] Preferably, in the subway tunnel emergency drainage and ventilation system provided by the present invention, the front and rear walls of the tunnel inflatable barrier are connected by mushroom nails.

[0014] Preferably, the present invention provides a subway tunnel emergency drainage and ventilation system, wherein the air supply outlet and the drainage outlet are located on the bottom sides of the tunnel inflatable barrier, respectively.

[0015] As can be seen, the subway tunnel emergency drainage and ventilation system provided by this invention uses a blower to inflate an inflatable barrier, forming a temporary soft wall to block the tunnel entrance. This generates wind pressure inside the tunnel, continuously supplying fresh air to a generator unit in the vicinity, thus facilitating drainage operations. The system is simple in structure and easy to carry and use. The inflatable barrier also features a pull-out soft door for easy access for personnel and transport of materials. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 The diagram shown is a frame schematic of a subway tunnel emergency drainage and ventilation system according to an embodiment of the present invention.

[0018] Figure 2 Displayed as Figure 1 A scaled-down diagram of part A.

[0019] The reference numerals in the accompanying drawings are as follows:

[0020] 1. Tunnel inflatable barrier, 11. Air outlet, 12. Drain outlet, 13. Flexible door assembly, 131. Flexible door, 131. Magnetic strip, 1311. Drop bar, 1312. Flexible door frame, 132. Roller, 133. Pull rope, 134. Magnetic pendant, 1341. Magnetic device, 135. Pull rope buckle, 136. Air supply device, 2. Rail, 3. Mushroom nail, 4. Drain pipe, 5. Tunnel, 6. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0023] In existing technologies, during rare floods, the water level can submerge the electrical control cabinets inside the tunnel, rendering the pumping station inoperable. The first step is to drain the water from the bottom of the tunnel below the platform, and then proceed down the tracks to the pumping station to quickly drain the water from the lowest point between the two stations. If hydraulic pumps are used, the hydraulic energy is almost entirely lost over a 1-kilometer distance. If electric pumps are used, issues arise with cable management, heat dissipation, and voltage drop. Sending a generator set deep into the tunnel to power the pumps for drainage requires sufficient fresh air, but the limited space and insufficient fresh air in subway tunnels can lead to oxygen deficiency and carbon monoxide poisoning among workers. Simply adding a jet fan at the tunnel entrance, even with a 100kW high-power jet fan, is insufficient to deliver fresh air to the vicinity of the generator set 1 kilometer away. This invention provides the following solution:

[0024] like Figures 1 to 2As shown, this embodiment of the invention provides a subway tunnel emergency drainage and ventilation system, including a tunnel inflatable barrier 1 and a ventilation device 2. The tunnel inflatable barrier 1 is provided with an air supply port 11 leading to the tunnel, a drainage port 12, and a hoistable flexible door assembly 13. The air outlet of the ventilation device 2 leads to the air supply port 11 and the air inlet of the tunnel inflatable barrier 1, respectively.

[0025] It should be noted that the drainage pipe 5 is inserted into the drainage outlet 12. After the tunnel inflatable barrier 1 is inflated by the air supply device 2, it forms a temporary soft wall to block the entrance of the tunnel 6, achieving a soft seal at the tunnel entrance and preventing backflow of air pressure inside the tunnel. The air supply device 2 generates air pressure inside the tunnel 6 through the air supply outlet 11 through this tunnel inflatable barrier 1, continuously delivering fresh air from the tunnel entrance to the vicinity of the generator set at a distance, thereby achieving drainage operations. After the tunnel inflatable barrier 1 is inflated, an arch is formed in the inner ring. The soft door component 13 in the arch can be hoisted up to facilitate the entry and exit of personnel and the transport of materials.

[0026] In some embodiments, the air supply device 2 is a blower, and the power of the blower can be 3kw-10kw.

[0027] In some embodiments, the soft door assembly 13 includes a soft door 131 and a soft door frame 132. Rotatable rollers 133 are respectively provided on the upper two sides of the soft door frame 132. Pull ropes 134 are respectively connected to the two sides of the soft door 131, and the extended ends of the pull ropes 134 are vertically downward around the rollers 133.

[0028] It should be noted that a receiving groove is provided around the roller 133, and the pull rope 134 can be locked in the receiving groove, making the pull rope 134 more stable when pulled and preventing it from slipping off the roller 133. By pulling the vertical downward end of the pull rope 134 by hand, the soft leather door 131 can be lifted upward to facilitate the entry and exit of personnel and the transport of materials.

[0029] In some embodiments, a magnetic pendant 1341 is provided at the vertically downward end of the pull rope 134. When the pull rope 134 is pulled, the magnetic pendant 1341 is attracted to the rail 3, thereby making the soft leather door 131 relatively fixed after being lifted.

[0030] In some embodiments, the number of rollers 133 is set to two and they are arranged side by side. The combination of the two rollers 133 makes the pull rope 134 more stable when it is pulled.

[0031] In some embodiments, the soft leather door 131 is provided with magnetic strips 1311 on both sides that magnetically attract the soft door frame 132, thereby enabling the soft leather door 131 to be quickly fixed.

[0032] In some embodiments, the bottom of the flexible door frame 132 is provided with a magnetic suction device 135 for adsorbing the rail 3. The magnetic suction device 135 can make the bottom of the flexible door frame 132 more firmly fixed to the rail 3.

[0033] In some embodiments, the soft leather door 131 is provided with a plurality of pull rope buckles 136 on both sides corresponding to the pull rope 134, thereby preventing the middle part of the soft leather door 131 from drooping when it is lifted.

[0034] In some embodiments, the bottom of the soft leather door 131 is provided with a drop bar 1312, which allows the soft leather door 131 to hang down naturally and seal with the ground.

[0035] In some embodiments, the front and rear walls of the tunnel inflatable barrier 1 are connected by mushroom nails 4.

[0036] In some embodiments, the air supply outlet 11 and the drainage outlet 12 are located on the bottom sides of the tunnel inflatable barrier 1, respectively.

[0037] In summary, the embodiments of the present invention provide a subway tunnel emergency drainage and ventilation system. After an inflatable barrier is inflated by a blower, it forms a temporary soft wall to block the tunnel entrance. The resulting air pressure within the tunnel continuously delivers fresh air to a generator unit in the vicinity, thus facilitating drainage operations. The system is simple in structure and easy to carry and use. The inflatable barrier also features a pull-out soft door for easy access for personnel and transport of materials.

[0038] The above description is merely a specific embodiment of this application, and the scope of protection of this application is not limited thereto. Those skilled in the art can make changes or substitutions within the technical scope disclosed in this application, and all such changes or substitutions should be within the scope of protection of this application.

[0039] Those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of the invention and form different embodiments.

[0040] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A subway tunnel emergency rescue drainage and air supply system, characterized in that, The utility model provides an air supply device (2) and a tunnel inflatable barrier (1), the tunnel inflatable barrier (1) is equipped with air supply port (11) leading to the tunnel, drainage port (12) and the soft door assembly (13) of hoisting and pulling, the air outlet end of the air supply device (2) leads to the air supply port (11) and the inflation port of the tunnel inflatable barrier (1) respectively.

2. The subway tunnel emergency rescue drainage and air supply system according to claim 1, characterized in that, The soft door assembly (13) includes soft leather door (131) and soft door outer frame (132), the upper two sides of soft door outer frame (132) are equipped with rotatable roller (133) respectively, the two sides of soft leather door (131) are connected with pull rope (134) respectively, and the extension end of pull rope (134) is vertically downward around roller (133).

3. The subway tunnel emergency rescue drainage and air supply system according to claim 2, characterized in that, The vertically downward end of pull rope (134) is equipped with magnet pendant (1341).

4. The subway tunnel emergency rescue drainage and air supply system according to claim 2, characterized in that, The number of roller (133) is two and is distributed side by side.

5. The subway tunnel emergency rescue drainage and air supply system according to claim 2, characterized in that, The two sides of soft leather door (131) are equipped with magnetic attraction strip (1311) and the soft door outer frame (132) magnetic attraction.

6. The subway tunnel emergency rescue drainage and air supply system according to claim 2, characterized in that, The bottom of soft door outer frame (132) is equipped with magnetic attraction device (135) for adsorbing rail (3).

7. The subway tunnel emergency rescue drainage and air supply system according to claim 2, characterized in that, The two sides of soft leather door (131) are equipped with a plurality of pull rope buckle (136) corresponding to pull rope (134).

8. The subway tunnel emergency rescue drainage and air supply system according to claim 2, characterized in that, The bottom of soft leather door (131) is equipped with falling rod (1312).

9. The subway tunnel emergency rescue drainage and air supply system according to claim 1, characterized in that, The front wall and rear wall of the tunnel inflatable barrier (1) are connected through mushroom nail (4).

10. The subway tunnel emergency rescue drainage and air supply system according to claim 1, characterized in that, The air supply port (11) and drainage port (12) are located at the bottom of the tunnel inflatable barrier (1) respectively.

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