Fire smoke exhaust system and smoke exhaust method for rail transit tunnel

Abstract

The invention discloses a fire smoke exhaust system and method for a rail transit tunnel, and relates to the technical field of rail transit safety. The fire smoke exhaust system of the rail transit tunnel comprises a draught fan and a smoke exhaust pipeline, the smoke exhaust pipeline is arranged on the draught fan, one end of the smoke exhaust pipeline communicates with the draught fan, the other end of the smoke exhaust pipeline is used for communicating with an ascending tunnel and a descending tunnel, and the smoke exhaust pipeline comprises a first pipeline, a second pipeline, a third pipeline and a fourth pipeline; a first air valve of the air valve assembly is arranged in the first pipeline, a second air valve of the air valve assembly is arranged in the second pipeline, a third air valve of the air valve assembly is arranged in the third pipeline, and a fourth air valve of the air valve assembly is arranged in the fourth pipeline. On the premise that a smoke exhaust well in the middle of the tunnel is not arranged, fire smoke in the tunnel can be exhausted out of an inlet or an outlet of an upstream tunnel or out of an inlet or an outlet of a downstream tunnel through different airflow organization methods, meanwhile, it is guaranteed that people and smoke are separated in the tunnel, and safe evacuation of people is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit safety, and particularly to a fire smoke exhaust system and a smoke exhaust method for a rail transit tunnel. Background Art

[0002] Rail transit refers to a type of transportation vehicle or transportation system in which the operating vehicles need to run on a specific track. Currently, when a fire breaks out in a tunnel, the thick smoke generated by the train on fire is the number one killer threatening people's lives. The main reason for casualties in case of a fire is inhaling the smoke. In order to ensure the safety of personnel evacuation, effective measures should be taken to guide people to separate from the smoke, enabling people to escape against the direction of the fresh air and reducing the inhalation of smoke.

[0003] In order to ensure the safe evacuation of people in the tunnel under fire conditions, it is necessary to select the evacuation path and the smoke exhaust path of people, design the air flow organization on the path, and ensure that the smoke does not invade the evacuation or shelter space and the location where the non-fire train is located.

[0004] For the existing tunnel smoke exhaust system, as shown in Figure 1 The tunnel includes an up-tunnel 1 (the tunnel in which the train travels away from the dispatching center) and a down-tunnel 2 (the tunnel in which the train travels towards the dispatching center). A connecting air duct 3 is provided between the up-tunnel 1 and the down-tunnel 2. Smoke exhaust wells 8 (for longitudinal and transverse smoke exhaust) communicating with the outside are dug in the middle parts of the up-tunnel 1 and the down-tunnel 2. When the rear of the front train 6 or the front of the rear train 6 catches fire in the up-tunnel, or the rear of the front train 6 or the front of the rear train 6 catches fire in the down-tunnel, the smoke exhaust well 8 exhausts air from the corresponding tunnel to discharge the smoke. When the front of the front train 6 or the rear of the rear train 6 catches fire in the up-tunnel, or the front of the front train 6 or the rear of the rear train 6 catches fire in the down-tunnel, the smoke exhaust well 8 blows air into the corresponding tunnel from the outside, and the fresh air is discharged from the opening (exit or entrance) of the corresponding tunnel to discharge the smoke. However, when the ground use at the designed position of the smoke exhaust well 8 cannot be coordinated, or when the construction of the smoke exhaust well 8 is too deep, its construction excavation will cause serious damage to the mountain body, resulting in serious vegetation damage and soil erosion. At the same time, when the investment and construction risks are huge, the scheme of setting the smoke exhaust well 8 in the middle of the tunnel cannot be implemented, and the smoke exhaust of the train fire in the tunnel becomes a technical problem to be solved urgently. Summary of the Invention

[0005] Aiming at the defects existing in the prior art, the technical problem solved by the present invention is: how to exhaust smoke to ensure the safety of people when a train fire occurs in a tunnel.

[0006] To achieve the above object, in a first aspect, the fire smoke exhaust system for a rail transit tunnel provided by the present invention includes: A fan, which is used to be arranged inside the connecting air duct; A smoke exhaust pipeline is arranged on a fan. One end of the smoke exhaust pipeline is communicated with the fan, and the other end of the smoke exhaust pipeline is used to be communicated with the up-tunnel and the down-tunnel. The smoke exhaust pipeline includes a first pipeline, a second pipeline, a third pipeline and a fourth pipeline, so as to realize that the first pipeline connects the left end of the fan with the first space of the up-tunnel, the second pipeline connects the left end of the fan with the fourth space of the down-tunnel, the third pipeline connects the right end of the fan with the third space of the up-tunnel, and the fourth pipeline connects the right end of the fan with the sixth space of the down-tunnel. The fan is located inside the ventilation duct between the second space of the up-tunnel and the fifth space of the down-tunnel; A damper assembly includes a first damper, a second damper, a third damper and a fourth damper. The first damper is arranged inside the first pipeline, the second damper is arranged inside the second pipeline, the third damper is arranged inside the third pipeline, and the fourth damper is arranged inside the fourth pipeline.

[0007] By adopting the above technical solution, the smoke is discharged from the entrance or exit of the up-tunnel, or from the entrance or exit of the down-tunnel without endangering the safety of personnel, avoiding the problems that when the ground use of the designed position of the smoke exhaust shaft cannot be coordinated, or when the construction of the smoke exhaust shaft is too deep, its construction excavation will cause serious damage to the mountain body, resulting in serious vegetation damage and soil and water loss, and at the same time, the investment and construction risks are huge, and the scheme of setting the smoke exhaust shaft in the middle of the tunnel cannot be implemented. Therefore, when a fire occurs in a train in the tunnel, this fire smoke exhaust system conducts smoke exhaust to ensure the safety of personnel.

[0008] Combined with the first aspect, in an implementation manner, a plurality of evacuation channels are arranged on both sides of the fan, and the evacuation channels are used to connect the up-tunnel and the down-tunnel, and sealing doors are arranged inside the evacuation channels; Flow guiding and pressure boosting devices are arranged on the first pipeline, the second pipeline, the third pipeline and the fourth pipeline; A first silencer is arranged at the left end of the fan, and a second silencer is arranged at the right end of the fan. The first pipeline is communicated with the fan through the first silencer, the second pipeline is communicated with the fan through the first silencer, the third pipeline is communicated with the fan through the second silencer, and the fourth pipeline is communicated with the fan through the second silencer.

[0009] By adopting the above technical solution, the evacuation channels facilitate the evacuation of personnel from both the up-tunnel and the down-tunnel; the flow guiding and pressure boosting devices improve the wind pressure during the operation of the fan to improve the effect of smoke discharge; the first silencer and the second silencer reduce the noise during the operation of the fan.

[0010] In the second aspect, the smoke exhaust method for a rail transit tunnel provided by the present invention includes the following steps: Provide the fire smoke exhaust system for the rail transit tunnel; Determine the stopping position of the train in the up-tunnel or down-tunnel, where the stopping position includes a first preset position and a second preset position; Determine the fire location of the train, where the fire location includes the front of the train and the rear of the train; According to the stopping position and the fire location of the train, determine the exhaust direction of the fan and the opening and closing of the air valve assembly, so as to discharge the smoke in the up-tunnel or down-tunnel.

[0011] By adopting the above technical solution, the smoke is discharged from the entrance or exit of the up-tunnel, or from the entrance or exit of the down-tunnel without endangering the safety of personnel. This avoids the problem that when the ground use of the designed position of the smoke exhaust shaft cannot be coordinated, or when the construction of the smoke exhaust shaft is too deep, its construction excavation will cause serious damage to the mountain body, resulting in serious vegetation damage and soil and water loss. At the same time, when the investment and construction risks are huge, the scheme of setting the smoke exhaust shaft in the middle of the tunnel cannot be implemented. Therefore, when a fire occurs to the train in the tunnel, this fire smoke exhaust system conducts smoke exhaust to ensure the safety of personnel.

[0012] Combined with the second aspect, in one implementation, according to the stopping position and the fire location of the train, determine the exhaust direction of the fan and the opening and closing of the air valve assembly, so as to discharge the smoke in the up-tunnel or down-tunnel. Specifically, it includes: When the stopping position is the first preset position and the fire location is the front of the train, where the first preset position includes a first space and a sixth space; The exhaust direction of the fan is the same as the direction of the front of the train, where the exhaust direction of the fan includes right exhaust and left exhaust; Close the air valve close to the train in the pipeline connecting to the opposite tunnel of the train, open the air valve close to the train in the pipeline connecting to the tunnel where the train is located, open the air valve far from the train in the pipeline connecting to the opposite tunnel of the train, and / or the air valve far from the train in the pipeline connecting to the tunnel where the train is located; So that the smoke passes through one or two of the pipelines connecting to the tunnel where the train is located, the fan, and the pipeline where the air valve far from the train is located in sequence, and is discharged from the opening facing the front of the train in the tunnel where the train is located, and / or the opening facing the front of the train in the opposite tunnel of the train, where the opening includes an exit and an entrance.

[0013] By adopting the above technical solution, when a fire occurs to the train in the tunnel, the stopping position is the space between the tunnel entrance and the fan placement area, and the fire location is the front of the train, the smoke is discharged through the above route to prevent personnel from inhaling the smoke.

[0014] In one implementation, it specifically includes: When the stopping position is the first space and the fire location is the front of the train; The exhaust direction of the fan is right exhaust; Close the second air valve, open the first air valve, and open the third air valve and / or the fourth air valve; So that the flue gas passes through the first pipeline, the fan, the third pipeline and / or the fourth pipeline in sequence, and is discharged from the outlet of the upward tunnel and / or the inlet of the downward tunnel; Personnel evacuate towards the rear of the train, and determine whether there is a train in the downward tunnel; If so, the personnel leave the tunnel from the entrance of the upward tunnel; if not, the personnel leave the tunnel from the entrance of the upward tunnel and / or the outlet of the downward tunnel.

[0015] By adopting the above technical solution, when a fire occurs in the upward tunnel of the train, the parking position is the first space, and the fire location is the head of the train, the flue gas is sucked through the above route and finally discharged from the outlet of the upward tunnel and / or the inlet of the downward tunnel, avoiding personnel inhaling the flue gas; at the same time, while ensuring the safety of personnel, the personnel are evacuated from the tunnel.

[0016] In one embodiment, according to the parking position and the fire location of the train, determine the exhaust direction of the fan and the opening and closing of the air valve assembly, so as to discharge the flue gas in the upward tunnel or the downward tunnel, specifically including: When the parking position is the first preset position and the fire location is the rear of the train, where the first preset position includes the first space and the sixth space; The exhaust direction of the fan is opposite to the head orientation of the train, where the exhaust direction of the fan includes right exhaust and left exhaust; Close the air valve close to the train in the pipeline connecting to the tunnel on the opposite side of the train, open the air valve close to the train in the pipeline connecting to the tunnel where the train is located, open the air valve far from the train in the pipeline connecting to the tunnel on the opposite side of the train, and / or the air valve far from the train in the pipeline connecting to the tunnel where the train is located; The fan obtains fresh air through the opening facing the head of the train in the tunnel where the train is located, and / or the opening facing the head of the train in the tunnel on the opposite side of the train. The fresh air passes through one or two of the pipelines where the air valves far from the train are located in sequence, the fan, and the pipeline connecting to the tunnel where the train is located, and is discharged from the opening facing the rear of the train in the tunnel where the train is located, so that the flue gas is discharged from the opening facing the rear of the train in the tunnel where the train is located.

[0017] By adopting the above technical solution, when a fire occurs in the tunnel of the train, the parking position is the space between the tunnel entrance and the fan placement area, and the fire location is the rear of the train, the fresh air obtained through the above route takes the flue gas and discharges it, avoiding personnel inhaling the flue gas.

[0018] In one embodiment, it specifically includes: When the parking position is the first space and the fire location is the rear of the train; The exhaust direction of the fan is left exhaust; Close the second air valve, open the first air valve, and open the third air valve and / or the fourth air valve; The fan obtains fresh air through the outlet of the up-tunnel and / or the inlet of the down-tunnel. The fresh air sequentially passes through the third pipeline and / or the fourth pipeline, the fan, and the first pipeline, and is discharged from the inlet of the up-tunnel, so that the flue gas is discharged from the inlet of the up-tunnel; Personnel evacuate towards the head of the train, and determine whether there is a train in the down-tunnel; If so, the personnel leave the tunnel through the outlet of the up-tunnel; if not, the personnel leave the tunnel through the outlet of the up-tunnel and / or the inlet of the down-tunnel.

[0019] By adopting the above technical solution, when a fire occurs in the up-tunnel of the train, the parking position is the first space, and the fire location is the tail of the train, the fresh air generated through the above route carries the flue gas and is discharged from the inlet of the up-tunnel, preventing personnel from inhaling the flue gas; at the same time, while ensuring the safety of personnel, the personnel are evacuated from the tunnel.

[0020] In one embodiment, according to the parking position and the fire location of the train, determine the exhaust direction of the fan and the opening and closing of the air valve assembly to discharge the flue gas in the up-tunnel or the down-tunnel. Specifically, it includes: When the parking position is the second preset position and the fire location is the head of the train, where the second preset position includes the third space and the fourth space; The exhaust direction of the fan is the same as the head orientation of the train, where the exhaust direction of the fan includes right exhaust and left exhaust; Close the air valve close to the train in the pipeline connecting to the tunnel on the opposite side of the train, open the air valve close to the train in the pipeline connecting to the tunnel where the train is located, open the air valve far from the train in the pipeline connecting to the tunnel on the opposite side of the train, and / or the air valve far from the train in the pipeline connecting to the tunnel where the train is located; The fan obtains fresh air through the opening facing the tail of the train in the tunnel where the train is located, and / or the opening facing the tail of the train in the tunnel on the opposite side of the train. The fresh air sequentially passes through one or two of the pipelines where the air valves far from the train are located, the fan, and the pipeline connecting to the tunnel where the train is located, and is discharged from the opening facing the head of the train in the tunnel where the train is located, so that the flue gas is discharged from the opening facing the head of the train in the tunnel where the train is located.

[0021] By adopting the above technical solution, when a fire occurs in the tunnel of the train, the parking position is the space between the tunnel exit and the fan placement area, and the fire location is the head of the train, the fresh air obtained through the above route carries the flue gas and is discharged, preventing personnel from inhaling the flue gas.

[0022] In one embodiment, according to the parking position and the fire location of the train, determine the exhaust direction of the fan and the opening and closing of the air valve assembly to discharge the flue gas in the up-tunnel or the down-tunnel. Specifically, it includes: When the docking position is the second preset position and the fire location is the rear of the vehicle, where the second preset position includes a third space and a fourth space; The exhaust direction of the fan is opposite to the head direction of the vehicle, where the exhaust direction of the fan includes right exhaust and left exhaust; Judge whether there is still a train inside the tunnel behind the train where the fire occurred; If so, close the air valve close to the train in the pipeline connecting to the tunnel on the opposite side of the train, and the air valve far from the train in the pipeline connecting to the tunnel where the train is located, open the air valve close to the train in the pipeline connecting to the tunnel where the train is located, and the air valve far from the train in the pipeline connecting to the tunnel on the opposite side of the train; So that the flue gas passes through the pipeline connecting to the tunnel where the train is located, the fan, and the pipeline where the air valve far from the train is located in sequence, and is discharged from the opening facing the rear of the vehicle on the opposite side of the train, where the opening includes an outlet and an inlet; If not, close the air valve close to the train in the pipeline connecting to the tunnel on the opposite side of the train, open the air valve close to the train in the pipeline connecting to the tunnel where the train is located, open the air valve far from the train in the pipeline connecting to the tunnel on the opposite side of the train, and / or the air valve far from the train in the pipeline connecting to the tunnel where the train is located; So that the flue gas passes through one or two of the pipeline connecting to the tunnel where the train is located, the fan, and the pipeline where the air valve far from the train is located in sequence, and is discharged from the opening facing the rear of the vehicle in the tunnel where the train is located, and / or the opening facing the rear of the vehicle on the opposite side of the train, where the opening includes an outlet and an inlet.

[0023] By adopting the above technical solutions, when a fire occurs in a train in a tunnel, the docking position is the space between the tunnel exit and the fan placement area, and the fire location is the rear of the vehicle, the flue gas is discharged through the above route to avoid personnel inhaling the flue gas; at the same time, when there are other trains in the tunnel where the fire occurs, because the other trains will stop inside the tunnel, the above design can avoid adverse effects on the personnel of other trains when discharging the flue gas.

[0024] In one embodiment, it specifically includes: When the docking position is the third space and the fire location is the rear of the vehicle; The exhaust direction of the fan is left exhaust; Judge whether there is still a train inside the upward tunnel behind the train where the fire occurred; If so, close the fourth air valve and the first air valve, and open the third air valve and the second air valve; So that the flue gas passes through the third pipeline, the fan, and the second pipeline in sequence, and is discharged from the outlet of the downward tunnel; If not, close the fourth air valve, open the third air valve, and open the first air valve and / or the second air valve; so that the flue gas passes through the third pipeline, the fan, the first pipeline and / or the second pipeline in sequence and is discharged from the entrance of the upward tunnel and / or the exit of the downward tunnel; The personnel evacuate towards the front of the train and determine whether there is a train in the downward tunnel; If so, the personnel leave the tunnel from the exit of the upward tunnel; if not, the personnel leave the tunnel from the exit of the upward tunnel and / or the entrance of the downward tunnel.

[0025] By adopting the above technical solutions, when a fire breaks out in the upward tunnel, the train stops at the third space and the fire location is at the rear of the train, the flue gas is sucked through the above route and finally discharged from the exit of the upward tunnel and / or the entrance of the downward tunnel, avoiding the personnel from inhaling the flue gas; when there are other trains in the upward tunnel, since the other trains will stop inside the upward tunnel, the above design can avoid adverse effects on the personnel of other trains when discharging the flue gas; at the same time, while ensuring the safety of the personnel, the personnel are evacuated from the tunnel.

[0026] In summary, the present invention includes at least one of the following beneficial technical effects: 1. By arranging a fan inside the connecting air duct and connecting the fan to the two spaces of the upward tunnel and the two spaces of the downward tunnel respectively through the smoke exhaust pipelines, and air valves are arranged inside the smoke exhaust pipelines to control the opening and closing of the smoke exhaust pipelines. When a fire breaks out in the tunnel, through different exhaust directions of the fan and the opening and closing of different air valves, the flue gas is discharged from the entrance or exit of the upward tunnel, or from the entrance or exit of the downward tunnel without endangering the safety of the personnel. Therefore, when a fire breaks out in the tunnel, the fire smoke exhaust system exhausts the smoke to ensure the safety of the personnel; 2. Through the design of the fire smoke exhaust system and the smoke exhaust method, in the same passage where a fire occurs, if there is a train parked behind the train where the fire occurs, the flue gas can be discharged through the opposite tunnel to avoid adverse effects of the flue gas on the personnel of the parked train, thereby further improving the applicability and safety of the fire smoke exhaust system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of the background technology of the present invention; Figure 2 It is a schematic structural diagram of the fire smoke exhaust system of the rail transit tunnel in the embodiment of the present invention; Figure 3 It is a first schematic structural diagram of the first fire situation in the embodiment of the present invention; Figure 4 It is a second schematic structural diagram of the first fire situation in the embodiment of the present invention; Figure 5 It is a first schematic structural diagram of the second fire situation in the embodiment of the present invention; Figure 6 It is the second structural schematic diagram of the second fire situation in the embodiment of the present invention; Figure 7 It is the first structural schematic diagram of the third fire situation in the embodiment of the present invention; Figure 8 It is the second structural schematic diagram of the third fire situation in the embodiment of the present invention; Figure 9 It is the first structural schematic diagram of the fourth fire situation in the embodiment of the present invention; Figure 10 It is the second structural schematic diagram of the fourth fire situation in the embodiment of the present invention.

[0028] In the figure: 1 - Upward tunnel, 2 - Downward tunnel, 3 - Connecting ventilation duct, 4 - Fan, 41 - Smoke exhaust pipeline, 411 - First pipeline, 412 - Second pipeline, 413 - Third pipeline, 414 - Fourth pipeline, 42 - Air valve assembly, 421 - First air valve, 422 - Second air valve, 423 - Third air valve, 424 - Fourth air valve, 43 - Flow guiding and pressurizing device, 5 - Evacuation passage, 51 - Sealing door, 6 - Train, 7 - Position sensor, 8 - Smoke exhaust shaft. Specific embodiments

[0029] The following further elaborates on the embodiments of the present invention with reference to the accompanying drawings.

[0030] The fire smoke exhaust system of the rail transit tunnel in the embodiment of the present invention, see Figure 2 As shown, the fire smoke exhaust system of the rail transit tunnel includes a fan 4, which is used to be arranged inside the connecting ventilation duct 3; A smoke exhaust pipeline 41, which is arranged on the fan 4. One end of the smoke exhaust pipeline 41 is communicated with the fan 4, and the other end of the smoke exhaust pipeline 41 is used to be communicated with the upward tunnel 1 and the downward tunnel 2. The smoke exhaust pipeline 41 includes a first pipeline 411, a second pipeline 412, a third pipeline 413 and a fourth pipeline 414, so as to realize that the first pipeline 411 connects the left end of the fan 4 with the first space of the upward tunnel 1, the second pipeline 412 connects the left end of the fan 4 with the fourth space of the downward tunnel 2, the third pipeline 413 connects the right end of the fan 4 with the third space of the upward tunnel 1, and the fourth pipeline 414 connects the right end of the fan 4 with the sixth space of the downward tunnel 2. The fan 4 is located inside the connecting ventilation duct 3 between the second space of the upward tunnel 1 and the fifth space of the downward tunnel 2; An air valve assembly 42, which includes a first air valve 421, a second air valve 422, a third air valve 423 and a fourth air valve 424. The first air valve 421 is arranged inside the first pipeline 411, the second air valve 422 is arranged inside the second pipeline 412, the third air valve 423 is arranged inside the third pipeline 413, and the fourth air valve 424 is arranged inside the fourth pipeline 414.

[0031] It can be seen from this that in the present invention, a fan 4 is provided inside the ventilation duct 3, and the fan 4 is respectively connected to the two spaces of the upward tunnel 1 and the two spaces of the downward tunnel 2 through the smoke exhaust pipelines 41. Air valves are provided inside the smoke exhaust pipelines 41 to control the opening and closing of the smoke exhaust pipelines. When a fire occurs to the train 6 in the tunnel, through the different exhaust directions of the fan 4 and the opening and closing of different air valves, the smoke is discharged from the entrance or exit of the upward tunnel 1 or from the entrance or exit of the downward tunnel 2 without endangering the safety of personnel, avoiding the problem that when the ground use at the designed position of the smoke exhaust shaft 8 cannot be coordinated, or when the smoke exhaust shaft 8 is constructed too deep, its construction excavation will cause serious damage to the mountain body, resulting in serious vegetation damage and soil and water loss, and at the same time, the investment and construction risks are huge, and the scheme of setting the smoke exhaust shaft 8 in the middle of the tunnel cannot be implemented. Therefore, when a fire occurs to the train 6 in the tunnel, this fire smoke exhaust system conducts smoke exhaust to ensure the safety of personnel.

[0032] It should be noted that the above-mentioned upward tunnel 1 is divided into a first space, a second space and a third space, and the downward tunnel 2 is divided into a fourth space, a fifth space and a sixth space, in order to connect different smoke exhaust pipelines 41 to the inside of the corresponding spaces to ensure the effect of absorbing or discharging smoke.

[0033] Preferably, as shown in Figure 2 a number of evacuation passages 5 are provided on both sides of the fan 4, and the evacuation passages 5 are used to connect the upward tunnel 1 and the downward tunnel 2, and a sealing door 51 is provided inside the evacuation passages 5.

[0034] Specifically, a number of evacuation passages 5 are provided inside the pipeline. The evacuation passages 5 connect the upward tunnel 1 and the downward tunnel 2, facilitating the evacuation of personnel from either the upward tunnel 1 or the downward tunnel 2 to improve the evacuation efficiency. At the same time, more evacuation route options are provided to facilitate dealing with more emergencies.

[0035] Preferably, as shown in Figure 2 a flow guiding and pressure boosting device 43 is provided on each of the first pipeline 411, the second pipeline 412, the third pipeline 413 and the fourth pipeline 414.

[0036] Specifically, the flow guiding and pressure boosting device 43 increases the wind pressure during the operation of the fan 4 to improve the effect of smoke discharge.

[0037] Preferably, as shown in Figure 2 a first muffler is provided at the left end of the fan 4, and a second muffler is provided at the right end of the fan 4. The first pipeline 411 is connected to the fan 4 through the first muffler, the second pipeline 412 is connected to the fan 4 through the first muffler, the third pipeline 413 is connected to the fan 4 through the second muffler, and the fourth pipeline 414 is connected to the fan 4 through the second muffler.

[0038] Specifically, by installing a muffler between the pipeline and the fan 4, it is not only convenient for the assembly of each component, but also the first muffler and the second muffler reduce the noise generated when the fan 4 operates.

[0039] The method for exhausting fire smoke in a rail transit tunnel in the embodiment of the present invention includes the following steps: Provide a fire smoke exhaust system for a rail transit tunnel; Position sensors 7 are respectively arranged at preset positions in the up-tunnel 1 and the down-tunnel 2. According to the signal control system, determine the parking position of the train 6 in the up-tunnel 1 or the down-tunnel 2, where the parking position includes a first preset position and a second preset position; According to the alarm information of personnel or the driver, determine the fire location of the train 6, where the fire location includes the head and the tail of the train; According to the parking position and the fire location of the train 6, determine the exhaust direction of the fan 4 and the opening and closing of the air valve assembly 42, so as to exhaust the smoke in the up-tunnel 1 or the down-tunnel 2.

[0040] It can be seen from this that the present invention is provided with a fan 4 inside the connecting duct 3, and the fan 4 is respectively connected to two spaces in the up-tunnel 1 and two spaces in the down-tunnel 2 through the smoke exhaust pipeline 41. Air valves are arranged inside the smoke exhaust pipeline 41 to control the opening and closing of the smoke exhaust pipeline. When a fire occurs in the tunnel for the train 6, through different exhaust directions of the fan 4 and the opening and closing of different air valves, the smoke is exhausted from the entrance or the exit of the up-tunnel 1, or from the entrance or the exit of the down-tunnel 2 without endangering the safety of personnel, avoiding the problem that when the ground use of the designed position of the smoke exhaust shaft 8 cannot be coordinated, or when the smoke exhaust shaft 8 is constructed too deep, its construction excavation will cause serious damage to the mountain body, resulting in serious vegetation damage and soil and water loss, and at the same time, the investment and construction risks are huge, and the scheme of setting the smoke exhaust shaft 8 in the middle of the tunnel cannot be implemented. Therefore, when a fire occurs to the train 6 in the tunnel, this fire smoke exhaust system exhausts the smoke to ensure the safety of personnel.

[0041] Preferably, provide a first fire situation. When a fire occurs to the train 6 in the tunnel, the parking position is the space between the tunnel entrance and the placement area of the fan 4, and the fire location is the head of the train; according to the parking position and the fire location of the train 6, determine the exhaust direction of the fan 4 and the opening and closing of the air valve assembly 42, so as to exhaust the smoke in the up-tunnel 1 or the down-tunnel 2, specifically including: When the parking position is the first preset position and the fire location is the head of the train, where the first preset position includes a first space and a sixth space, and position sensors 7 are arranged in both the first space and the sixth space to determine whether the train 6 is parked inside the first space or the sixth space; The exhaust direction of the fan 4 is the same as the head orientation of the train. Among them, the exhaust direction of the fan 4 includes rightward exhaust and leftward exhaust; Close the valve near the train 6 in the pipeline connecting to the tunnel on the opposite side of the train 6, open the valve near the train 6 in the pipeline connecting to the tunnel where the train 6 is located, open the valve far from the train 6 in the pipeline connecting to the tunnel on the opposite side of the train 6, and / or the valve far from the train 6 in the pipeline connecting to the tunnel where the train 6 is located; So that the flue gas passes through one or two of the pipelines connecting to the tunnel where the train 6 is located, the fan 4, and the pipeline where the valve far from the train 6 is located in sequence, and is discharged from the opening facing the head of the train 6 in the tunnel where the train 6 is located, and / or the opening facing the head of the tunnel on the opposite side of the train 6, where the opening includes an outlet and an inlet.

[0042] Further, refer to Figure 3 As shown, a specific solution is provided for the first fire situation: When the docking position is the first space and the fire location is the head of the train; The exhaust direction of the fan 4 is rightward exhaust; Close the second valve 422, open the first valve 421, open the third valve 423 and / or the fourth valve 424; So that the flue gas passes through the first pipeline 411, the fan 4, the third pipeline 413 and / or the fourth pipeline 414 in sequence, and is discharged from the outlet of the up-tunnel 1 and / or the inlet of the down-tunnel 2. Among them, the left side of the up-tunnel 1 is the inlet and the right side is the outlet, and the right side of the down-tunnel 2 is the inlet and the left side is the outlet; Personnel evacuate towards the tail of the train 6, and determine whether there is a train 6 in the down-tunnel 2; If so, the personnel leave the tunnel from the inlet of the up-tunnel 1; if not, the personnel leave the tunnel from the inlet of the up-tunnel 1 and / or the outlet of the down-tunnel 2.

[0043] Specifically, when a fire occurs in the train 6 in the up-tunnel 1, the docking position is the first space, and the fire location is the head of the train, the flue gas is sucked through the above route and finally discharged from the outlet of the up-tunnel 1 and / or the inlet of the down-tunnel 2, avoiding personnel inhaling the flue gas; at the same time, while ensuring the safety of personnel, the personnel are evacuated from the tunnel.

[0044] It should be noted that passing the flue gas or fresh air through the first pipeline 411, the fan 4, and the third pipeline 413 in sequence is recorded as one-way smoke exhaust, passing the flue gas or fresh air through the first pipeline 411, the fan 4, and the fourth pipeline 414 in sequence is recorded as Z-shaped smoke exhaust, and passing the flue gas or fresh air through the first pipeline 411, the fan 4, the third pipeline 413 and the fourth pipeline 414 in sequence is recorded as Y-shaped smoke exhaust; for the above solution, one-way smoke exhaust is preferably adopted for the following reasons: Although the Y-shaped smoke exhaust does indeed generate a greater smoke exhaust velocity than the linear smoke exhaust, both the Z-shaped and Y-shaped smoke exhausts require fresh air to be introduced from the opposite tunnel, which can impede the vehicles traveling normally in the opposite tunnel and easily pose secondary driving risks. Therefore, it is necessary to confirm and wait in advance for the vehicles in the opposite tunnel to clear, reducing the efficiency of the smoke exhaust organization. Therefore, when the linear smoke exhaust can be adopted, the smoke exhaust system can be immediately activated, with a faster corresponding speed.

[0045] See Figure 4 As shown, provide another specific solution for the first fire situation: When the docking position is the sixth space and the fire location is the front of the vehicle; The exhaust direction of the fan 4 is to exhaust to the left; Close the third air valve 423, open the fourth air valve 424, and open the first air valve 421 and / or the second air valve 422; So that the smoke passes through the fourth pipeline 414, the fan 4, the first pipeline 411 and / or the second pipeline 412 in sequence, and is discharged from the entrance of the up-tunnel 1 and / or the exit of the down-tunnel 2; Personnel evacuate towards the rear of the train 6, and determine whether there is a train 6 in the up-tunnel 1; If so, the personnel leave the tunnel from the entrance of the down-tunnel 2; if not, the personnel leave the tunnel from the entrance of the down-tunnel 2 and / or the exit of the up-tunnel 1.

[0046] Specifically, when a fire occurs in the down-tunnel 2 of the train 6, the docking position is the sixth space, and the fire location is the front of the vehicle, the smoke is sucked through the above route and finally discharged from the entrance of the up-tunnel 1 and / or the exit of the down-tunnel 2, preventing personnel from inhaling the smoke; at the same time, while ensuring the safety of personnel, evacuate the personnel out of the tunnel.

[0047] Preferably, provide a second fire situation. When a fire occurs in the tunnel of the train 6, the docking position is the space between the tunnel entrance and the area where the fan 4 is placed, and the fire location is the rear of the vehicle; according to the docking position and the fire location of the train 6, determine the exhaust direction of the fan 4 and the opening and closing of the air valve assembly 42, so as to discharge the smoke in the up-tunnel 1 or the down-tunnel 2, specifically including: When the docking position is the first preset position and the fire location is the rear of the vehicle, where the first preset position includes the first space and the sixth space, and position sensors 7 are installed in both the first space and the sixth space to determine whether the train 6 is docked inside the first space or the sixth space; The exhaust direction of the fan 4 is opposite to the direction of the vehicle head, where the exhaust direction of the fan 4 includes exhausting to the right and exhausting to the left; Close the air valve near the train 6 in the pipeline connecting to the opposite tunnel of the train 6, open the air valve near the train 6 in the pipeline connecting the train 6 to the tunnel, open the air valve far from the train 6 in the pipeline connecting to the opposite tunnel of the train 6, and / or the air valve far from the train 6 in the pipeline connecting the train 6 to the tunnel; The fan 4 obtains fresh air through the opening facing the front of the train 6 in the tunnel and / or the opening facing the front of the opposite tunnel of the train 6. The fresh air sequentially passes through one or two of the pipelines where the air valves far from the train 6 are located, the fan 4, and the pipeline connecting the train 6 to the tunnel, and is discharged from the opening facing the rear of the train 6 in the tunnel, so that the smoke is discharged from the opening facing the rear of the train 6 in the tunnel.

[0048] Further, refer to Figure 5 As shown, a specific solution is provided for the second fire situation: When the docking position is the first space and the fire location is the rear of the train; The exhaust direction of the fan 4 is to exhaust to the left; Close the second air valve 422, open the first air valve 421, open the third air valve 423 and / or the fourth air valve 424; The fan 4 obtains fresh air through the exit of the upward tunnel 1 and / or the entrance of the downward tunnel 2. The fresh air sequentially passes through the third pipeline 413 and / or the fourth pipeline 414, the fan 4, and the first pipeline 411, and is discharged from the entrance of the upward tunnel 1, so that the smoke is discharged from the entrance of the upward tunnel 1; Personnel evacuate towards the front of the train 6, and determine whether there is a train 6 in the downward tunnel 2; If so, the personnel leave the tunnel from the exit of the upward tunnel 1; if not, the personnel leave the tunnel from the exit of the upward tunnel 1 and / or the entrance of the downward tunnel 2.

[0049] Specifically, when a fire occurs in the train 6 in the upward tunnel 1, the docking position is the first space, and the fire location is the rear of the train, the fresh air generated by the above route carries the smoke, and preferably uses a linear smoke exhaust, which is discharged from the entrance of the upward tunnel 1 to avoid personnel inhaling the smoke; at the same time, while ensuring the safety of personnel, the personnel are evacuated from the tunnel.

[0050] Refer to Figure 6 As shown, another specific solution is provided for the second fire situation: When the docking position is the sixth space and the fire location is the rear of the train; The exhaust direction of the fan 4 is to exhaust to the right; Close the third air valve 423, open the fourth air valve 424, open the first air valve 421 and / or the second air valve 422; The air blower 4 obtains fresh air through the entrance of the up-tunnel 1 and / or the exit of the down-tunnel 2. The fresh air successively passes through the first pipeline 411 and / or the second pipeline 412, the air blower 4, and the fourth pipeline 414, and is discharged from the entrance of the down-tunnel 2, so that the flue gas is discharged from the entrance of the down-tunnel 2. The personnel evacuate towards the head of the train 6, and it is judged whether there is a train 6 in the down-tunnel 2. If so, the personnel leave the tunnel from the exit of the down-tunnel 2; if not, the personnel leave the tunnel from the exit of the down-tunnel 2 and / or the entrance of the up-tunnel 1.

[0051] Specifically, when a fire occurs in the train 6 in the down-tunnel 2, the parking position is the first space, and the fire location is the tail of the train, the fresh air generated by passing through the above route carries the flue gas. Among them, it is preferably to use one-way smoke exhaust and discharge it from the entrance of the down-tunnel 2 to prevent the personnel from inhaling the flue gas; at the same time, ensure the safety of the personnel and evacuate the personnel out of the tunnel.

[0052] Preferably, a third fire situation is provided. When a fire occurs in the train 6 in the tunnel, the parking position is the space between the tunnel exit and the placement area of the air blower 4, and the fire location is the head of the train; according to the parking position and the fire location of the train 6, determine the exhaust direction of the air blower 4 and the opening and closing of the air valve assembly 42, so as to discharge the flue gas in the up-tunnel 1 or the down-tunnel 2. Specifically, it includes: When the parking position is the second preset position and the fire location is the head of the train, among them, the second preset position includes the third space and the fourth space, and position sensors 7 are arranged in both the third space and the fourth space to judge whether the train 6 is parked inside the third space or the fourth space. The exhaust direction of the air blower 4 is the same as the head orientation of the train. Among them, the exhaust direction of the air blower 4 includes right exhaust and left exhaust. Close the air valve close to the train 6 in the pipeline communicating with the tunnel on the opposite side of the train 6, open the air valve close to the train 6 in the pipeline communicating with the tunnel where the train 6 is located, open the air valve far from the train 6 in the pipeline communicating with the tunnel on the opposite side of the train 6, and / or the air valve far from the train 6 in the pipeline communicating with the tunnel where the train 6 is located. The air blower 4 obtains fresh air through the opening facing the tail of the train in the tunnel where the train 6 is located and / or the opening facing the tail of the tunnel on the opposite side of the train 6. The fresh air successively passes through one or two of the pipelines where the air valve far from the train 6 is located, the air blower 4, and the pipeline communicating with the tunnel where the train 6 is located, and is discharged from the opening facing the head of the train in the tunnel where the train 6 is located, so that the flue gas is discharged from the opening facing the head of the train in the tunnel where the train 6 is located.

[0053] Further, refer to Figure 7 As shown, a specific scheme is provided for the third fire situation: When the parking position is the third space and the fire location is the head of the train; The exhaust direction of the fan 4 is to exhaust air to the right; Close the fourth air valve 424, open the third air valve 423, and open the first air valve 421 and / or the second air valve 422; The fan 4 obtains fresh air through the entrance of the up-tunnel 1 and / or the exit of the down-tunnel 2. The fresh air successively passes through the first pipeline 411 and / or the second pipeline 412, the fan 4, and the third pipeline 413, and is discharged from the exit of the up-tunnel 1, so that the flue gas is discharged from the exit of the up-tunnel 1; Personnel evacuate towards the tail of the train 6, and determine whether there is a train 6 in the down-tunnel 2; If so, the personnel leave the tunnel from the entrance of the up-tunnel 1; if not, the personnel leave the tunnel from the entrance of the up-tunnel 1 and / or the exit of the down-tunnel 2.

[0054] Specifically, when a fire occurs in the up-tunnel 1 for the train 6, the parking position is the third space, and the fire location is the head of the train, the fresh air generated through the above route carries the flue gas. Among them, it is preferably to use one-way smoke exhaust and discharge it from the exit of the up-tunnel 1 to avoid personnel inhaling the flue gas; at the same time, ensure the safety of personnel and evacuate the personnel out of the tunnel.

[0055] See Figure 8 As shown, another specific solution is provided for the third fire situation: When the parking position is the third space and the fire location is the head of the train; The exhaust direction of the fan 4 is to exhaust air to the left; Close the first air valve 421, open the second air valve 422, and open the third air valve 423 and / or the fourth air valve 424; The fan 4 obtains fresh air through the exit of the up-tunnel 1 and / or the entrance of the down-tunnel 2. The fresh air successively passes through the third pipeline 413 and / or the fourth pipeline 414, the fan 4, and the second pipeline 412, and is discharged from the exit of the down-tunnel 2, so that the flue gas is discharged from the exit of the down-tunnel 2; Personnel evacuate towards the tail of the train 6, and determine whether there is a train 6 in the up-tunnel 1; If so, the personnel leave the tunnel from the entrance of the down-tunnel 2; if not, the personnel leave the tunnel from the entrance of the down-tunnel 2 and / or the exit of the up-tunnel 1.

[0056] Specifically, when a fire occurs in the down-tunnel 2 for the train 6, the parking position is the fourth space, and the fire location is the head of the train, the fresh air generated through the above route carries the flue gas. Among them, it is preferably to use one-way smoke exhaust and discharge it from the exit of the down-tunnel 2 to avoid personnel inhaling the flue gas; at the same time, ensure the safety of personnel and evacuate the personnel out of the tunnel.

[0057] Preferably, a fourth fire scenario is provided. When a fire breaks out in train 6 in a tunnel and the stopping position is the space between the tunnel exit and the area where the fan 4 is placed, and the fire location is at the rear of the train; at the same time, when there are other trains 6 in the tunnel where the fire occurs, because the other trains 6 will stop inside the tunnel; according to the stopping position and the fire location of train 6, determine the exhaust direction of the fan 4 and the opening and closing of the valve assembly 42, so as to discharge the smoke in the up-tunnel 1 or the down-tunnel 2. Specifically, it includes: When the stopping position is the second preset position and the fire location is at the rear of the train, where the second preset position includes the third space and the fourth space, and position sensors 7 are arranged in both the third space and the fourth space to determine whether train 6 stops inside the third space or the fourth space; The exhaust direction of the fan 4 is opposite to the head orientation, where the exhaust direction of the fan 4 includes right exhaust and left exhaust; Determine whether there is still a train 6 inside the tunnel behind the train 6 where the fire occurs; If so, close the valve near train 6 in the pipeline connecting to the tunnel on the opposite side of train 6, and the valve far from train 6 in the pipeline connecting to the tunnel where train 6 is located, and open the valve near train 6 in the pipeline connecting to the tunnel where train 6 is located, and the valve far from train 6 in the pipeline connecting to the tunnel on the opposite side of train 6; So that the smoke passes through the pipeline connecting to the tunnel where train 6 is located, the fan 4, and the pipeline where the valve far from train 6 is located in sequence, and is discharged from the opening facing the rear of the train on the opposite side of train 6, where the opening includes the exit and the entrance; If not, close the valve near train 6 in the pipeline connecting to the tunnel on the opposite side of train 6, open the valve near train 6 in the pipeline connecting to the tunnel where train 6 is located, open the valve far from train 6 in the pipeline connecting to the tunnel on the opposite side of train 6, and / or the valve far from train 6 in the pipeline connecting to the tunnel where train 6 is located; So that the smoke passes through one or two of the pipeline connecting to the tunnel where train 6 is located, the fan 4, and the pipeline where the valve far from train 6 is located in sequence, and is discharged from the opening facing the rear of the train in the tunnel where train 6 is located, and / or the opening facing the rear of the train on the opposite side of train 6, where the opening includes the exit and the entrance.

[0058] Further, referring to Figure 9 As shown, a specific solution is provided for the fourth fire scenario: When the stopping position is the third space and the fire location is at the rear of the train; The exhaust direction of the fan 4 is left exhaust; Determine whether there is still a train 6 inside the up-tunnel 1 behind the train 6 where the fire occurs; If so, close the fourth valve 424 and the first valve 421, and open the third valve 423 and the second valve 422; so that the flue gas passes through the third pipeline 413, the fan 4, and the second pipeline 412 in sequence and is discharged from the outlet of the downward tunnel 2; If not, close the fourth air valve 424, open the third air valve 423, and open the first air valve 421 and / or the second air valve 422; so that the flue gas passes through the third pipeline 413, the fan 4, the first pipeline 411 and / or the second pipeline 412 in sequence and is discharged from the inlet of the upward tunnel 1 and / or the outlet of the downward tunnel 2; The personnel evacuate towards the head of the train 6, and it is judged whether there is a train 6 in the downward tunnel 2; If so, the personnel leave the tunnel from the outlet of the upward tunnel 1; if not, the personnel leave the tunnel from the outlet of the upward tunnel 1 and / or the inlet of the downward tunnel 2.

[0059] Specifically, when a fire breaks out in the train 6 in the upward tunnel 1, the parking position is the third space, and the fire location is the tail of the train, the flue gas is sucked through the above route and finally discharged from the outlet of the upward tunnel 1 and / or the inlet of the downward tunnel 2 to prevent personnel from inhaling the flue gas; when there are other trains 6 in the upward tunnel 1, since the other trains 6 will stop inside the upward tunnel 1, through the above design, it is possible to avoid adverse effects on the personnel of other trains 6 when discharging the flue gas. When there are other trains 6 inside the upward tunnel 1, Z-shaped smoke exhaust is preferably adopted, otherwise, linear smoke exhaust is preferably adopted; at the same time, while ensuring the safety of personnel, the personnel are evacuated out of the tunnel.

[0060] See Figure 10 As shown, another specific solution is provided for the fourth fire situation: When the parking position is the fourth space and the fire location is the tail of the train; The exhaust direction of the fan 4 is to exhaust to the right; It is judged whether there is still a train 6 inside the downward tunnel 2 behind the train 6 where the fire occurs; If so, close the fourth air valve 424 and the first air valve 421, and open the third air valve 423 and the second air valve 422; so that the flue gas passes through the third pipeline 413, the fan 4, and the second pipeline 412 in sequence and is discharged from the outlet of the upward tunnel 1; If not, close the first air valve 421, open the second air valve 422, and open the third air valve 423 and / or the fourth air valve 424; so that the flue gas passes through the second pipeline 412, the fan 4, the third pipeline 413 and / or the fourth pipeline 414 in sequence and is discharged from the outlet of the upward tunnel 1 and / or the inlet of the downward tunnel 2; The personnel evacuate towards the head of the train 6, and it is judged whether there is a train 6 in the upward tunnel 1; If so, the personnel leave the tunnel from the exit of the downlink tunnel 2; if not, the personnel leave the tunnel from the entrance of the uplink tunnel 1 and / or the exit of the downlink tunnel 2.

[0061] Specifically, when a fire breaks out in the downlink tunnel 2 of the train 6, the parking position is the fourth space, and the fire location is the tail of the train, the smoke is sucked through the above route and finally discharged from the exit of the downlink tunnel 2 and / or the entrance of the uplink tunnel 1 to prevent the personnel from inhaling the smoke; when there are other trains 6 in the uplink tunnel 1, since the other trains 6 will stop inside the uplink tunnel 1, the above design can avoid adverse effects on the personnel of other trains 6 when discharging the smoke. When there are other trains 6 inside the uplink tunnel 1, Z-shaped smoke exhaust is preferably adopted; otherwise, linear smoke exhaust is preferably adopted; at the same time, while ensuring the safety of the personnel, the personnel are evacuated from the tunnel.

[0062] The above are only specific implementation manners of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A fire smoke exhaust system for a rail transit tunnel, characterized in that, It includes: A fan (4) which is used to be arranged inside the connecting air duct (3); An exhaust smoke pipeline (41) which is arranged on the fan (4), one end of the exhaust smoke pipeline (41) is communicated with the fan (4), and the other end of the exhaust smoke pipeline (41) is used to be communicated with the up-tunnel (1) and the down-tunnel (2). The exhaust smoke pipeline (41) includes a first pipeline (411), a second pipeline (412), a third pipeline (413) and a fourth pipeline (414) so as to realize that the first pipeline (411) connects the left end of the fan (4) with the first space of the up-tunnel (1), the second pipeline (412) connects the left end of the fan (4) with the fourth space of the down-tunnel (2), the third pipeline (413) connects the right end of the fan (4) with the third space of the up-tunnel (1), the fourth pipeline (414) connects the right end of the fan (4) with the sixth space of the down-tunnel (2), and the fan (4) is located inside the connecting air duct (3) between the second space of the up-tunnel (1) and the fifth space of the down-tunnel (2); An air valve assembly (42) which includes a first air valve (421), a second air valve (422), a third air valve (423) and a fourth air valve (424). The first air valve (421) is arranged inside the first pipeline (411), the second air valve (422) is arranged inside the second pipeline (412), the third air valve (423) is arranged inside the third pipeline (413), and the fourth air valve (424) is arranged inside the fourth pipeline (414).

2. The fire exhaust smoke system for a rail transit tunnel according to claim 1, wherein: A plurality of evacuation passages (5) are arranged on both sides of the fan (4), and the evacuation passages (5) are used to connect the up-tunnel (1) and the down-tunnel (2), and a sealing door (51) is arranged inside the evacuation passages (5); Flow guiding and pressure boosting devices (43) are arranged on the first pipeline (411), the second pipeline (412), the third pipeline (413) and the fourth pipeline (414); A first silencer is arranged at the left end of the fan (4), and a second silencer is arranged at the right end of the fan (4). The first pipeline (411) is communicated with the fan (4) through the first silencer, the second pipeline (412) is communicated with the fan (4) through the first silencer, the third pipeline (413) is communicated with the fan (4) through the second silencer, and the fourth pipeline (414) is communicated with the fan (4) through the second silencer.

3. A smoke exhaust method for a rail transit tunnel, characterized in that, It includes the following steps: Provide the fire exhaust smoke system for a rail transit tunnel according to any one of claims 1-2; Determine the docking position of the train (6) in the up-tunnel (1) or the down-tunnel (2), wherein the docking position includes a first preset position and a second preset position; Determine the fire position of the train (6), wherein the fire position includes the head and the tail of the train; According to the docking position and the fire position of the train (6), determine the exhaust direction of the fan (4) and the opening and closing of the air valve assembly (42) so as to discharge the smoke in the up-tunnel (1) or the down-tunnel (2).

4. The smoke exhaust method for a rail transit tunnel according to claim 3, characterized in that, According to the stopping position and the fire location of the train (6), determine the exhaust direction of the fan (4) and the opening and closing of the air valve assembly (42) to discharge the smoke in the up-tunnel (1) or the down-tunnel (2), specifically including: When the stopping position is the first preset position and the fire location is at the head of the train, where the first preset position includes the first space and the sixth space; The exhaust direction of the fan (4) is the same as the head orientation of the train, where the exhaust direction of the fan (4) includes right exhaust and left exhaust; Close the air valve near the train (6) in the pipeline connecting to the tunnel on the opposite side of the train (6), open the air valve near the train (6) in the pipeline connecting to the tunnel where the train (6) is located, open the air valve far from the train (6) in the pipeline connecting to the tunnel on the opposite side of the train (6), and / or the air valve far from the train (6) in the pipeline connecting to the tunnel where the train (6) is located; So that the smoke passes through one or two of the pipelines connecting to the tunnel where the train (6) is located, the fan (4), and the pipeline where the air valve far from the train (6) is located in sequence, and is discharged from the opening facing the head of the train in the tunnel where the train (6) is located, and / or the opening facing the head of the train in the tunnel on the opposite side of the train (6), where the opening includes an outlet and an inlet.

5. The smoke exhaust method for a rail transit tunnel according to claim 4, wherein, Specifically including: When the stopping position is the first space and the fire location is at the head of the train; The exhaust direction of the fan (4) is right exhaust; Close the second air valve (422), open the first air valve (421), open the third air valve (423) and / or the fourth air valve (424); So that the smoke passes through the first pipeline (411), the fan (4), the third pipeline (413) and / or the fourth pipeline (414) in sequence, and is discharged from the outlet of the up-tunnel (1) and / or the inlet of the down-tunnel (2); Evacuate the personnel towards the tail of the train (6), and determine whether there is a train (6) in the down-tunnel (2); If so, the personnel leave the tunnel from the inlet of the up-tunnel (1); if not, the personnel leave the tunnel from the inlet of the up-tunnel (1) and / or the outlet of the down-tunnel (2).

6. The smoke exhaust method for a rail transit tunnel according to claim 3, wherein, According to the stopping position and the fire location of the train (6), determine the exhaust direction of the fan (4) and the opening and closing of the air valve assembly (42) to discharge the smoke in the up-tunnel (1) or the down-tunnel (2), specifically including: When the stopping position is the first preset position and the fire location is at the tail of the train, where the first preset position includes the first space and the sixth space; The exhaust direction of the fan (4) is opposite to the head orientation of the train, where the exhaust direction of the fan (4) includes right exhaust and left exhaust; Close the air valve near the train (6) in the pipeline connecting to the tunnel on the opposite side of the train (6), open the air valve near the train (6) in the pipeline connecting to the tunnel where the train (6) is located, open the air valve far from the train (6) in the pipeline connecting to the tunnel on the opposite side of the train (6), and / or the air valve far from the train (6) in the pipeline connecting to the tunnel where the train (6) is located; The air blower (4) obtains fresh air through the opening facing the head of the train (6) in the tunnel, and / or the opening facing the head of the tunnel on the opposite side of the train (6). The fresh air sequentially passes through one or two of the pipelines where the air valves far from the train (6) are located, the air blower (4), and the pipeline communicating with the tunnel where the train (6) is located, and is discharged from the opening facing the tail of the train (6) in the tunnel, so that the smoke is discharged from the opening facing the tail of the train (6) in the tunnel.

7. The smoke exhaust method for a rail transit tunnel according to claim 6, characterized in that, Specifically, it includes: When the parking position is the first space and the fire location is the tail of the train; The exhaust direction of the air blower (4) is to exhaust to the left; Close the second air valve (422), open the first air valve (421), open the third air valve (423) and / or the fourth air valve (424); The air blower (4) obtains fresh air through the outlet of the up-tunnel (1) and / or the inlet of the down-tunnel (2). The fresh air sequentially passes through the third pipeline (413) and / or the fourth pipeline (414), the air blower (4), and the first pipeline (411), and is discharged from the inlet of the up-tunnel (1), so that the smoke is discharged from the inlet of the up-tunnel (1); Personnel evacuate towards the head of the train (6), and determine whether there is a train (6) in the down-tunnel (2); If so, the personnel leave the tunnel from the outlet of the up-tunnel (1); if not, the personnel leave the tunnel from the outlet of the up-tunnel (1) and / or the inlet of the down-tunnel (2).

8. The smoke exhaust method for a rail transit tunnel according to claim 3, characterized in that, According to the parking position and the fire location of the train (6), determine the exhaust direction of the air blower (4) and the opening and closing of the air valve assembly (42) to discharge the smoke in the up-tunnel (1) or the down-tunnel (2). Specifically, it includes: When the parking position is the second preset position and the fire location is the head of the train, where the second preset position includes the third space and the fourth space; The exhaust direction of the air blower (4) is the same as the head orientation, where the exhaust direction of the air blower (4) includes exhausting to the right and exhausting to the left; Close the air valve close to the train (6) in the pipeline communicating with the tunnel on the opposite side of the train (6), open the air valve close to the train (6) in the pipeline communicating with the tunnel where the train (6) is located, open the air valve far from the train (6) in the pipeline communicating with the tunnel on the opposite side of the train (6), and / or the air valve far from the train (6) in the pipeline communicating with the tunnel where the train (6) is located; The air blower (4) obtains fresh air through the opening facing the tail of the train (6) in the tunnel, and / or the opening facing the tail of the tunnel on the opposite side of the train (6). The fresh air sequentially passes through one or two of the pipelines where the air valves far from the train (6) are located, the air blower (4), and the pipeline communicating with the tunnel where the train (6) is located, and is discharged from the opening facing the head of the train (6) in the tunnel, so that the smoke is discharged from the opening facing the head of the train (6) in the tunnel.

9. The smoke exhaust method for a rail transit tunnel according to claim 3, characterized in that, According to the parking position and the fire location of the train (6), determine the exhaust direction of the air blower (4) and the opening and closing of the air valve assembly (42) to discharge the smoke in the up-tunnel (1) or the down-tunnel (2). Specifically, it includes: When the parking position is the second preset position and the fire location is the tail of the train, where the second preset position includes the third space and the fourth space; The exhaust direction of the fan (4) is opposite to the head orientation of the train. Among them, the exhaust direction of the fan (4) includes exhausting to the right and exhausting to the left; Judge whether there is still a train (6) inside the tunnel behind the train (6) where a fire has occurred; If so, close the air valve near the train (6) in the pipeline connecting to the opposite tunnel of the train (6), and the air valve far from the train (6) in the pipeline connecting to the tunnel where the train (6) is located, open the air valve near the train (6) in the pipeline connecting to the tunnel where the train (6) is located, and the air valve far from the train (6) in the pipeline connecting to the opposite tunnel of the train (6); So that the smoke passes through the pipeline connecting to the tunnel where the train (6) is located, the fan (4), and the pipeline where the air valve far from the train (6) is located in sequence, and is discharged from the opening facing the tail of the opposite tunnel of the train (6). Among them, the opening includes an outlet and an inlet; If not, close the air valve near the train (6) in the pipeline connecting to the opposite tunnel of the train (6), open the air valve near the train (6) in the pipeline connecting to the tunnel where the train (6) is located, open the air valve far from the train (6) in the pipeline connecting to the opposite tunnel of the train (6), and / or the air valve far from the train (6) in the pipeline connecting to the tunnel where the train (6) is located; So that the smoke passes through one or two of the pipeline connecting to the tunnel where the train (6) is located, the fan (4), and the pipeline where the air valve far from the train (6) is located in sequence, and is discharged from the opening facing the tail of the tunnel where the train (6) is located, and / or the opening facing the tail of the opposite tunnel of the train (6). Among them, the opening includes an outlet and an inlet.

10. The smoke exhaust method for a rail transit tunnel according to claim 9, characterized in that, Specifically include: When the docking position is the third space and the fire location is the tail of the train; The exhaust direction of the fan (4) is exhausting to the left; Judge whether there is still a train (6) inside the upstream tunnel (1) behind the train (6) where a fire has occurred; If so, close the fourth air valve (424) and the first air valve (421), and open the third air valve (423) and the second air valve (422); So that the smoke passes through the third pipeline (413), the fan (4), and the second pipeline (412) in sequence, and is discharged from the outlet of the downstream tunnel (2); If not, close the fourth air valve (424), open the third air valve (423), and open the first air valve (421) and / or the second air valve (422); So that the smoke passes through the third pipeline (413), the fan (4), the first pipeline (411) and / or the second pipeline (412) in sequence, and is discharged from the inlet of the upstream tunnel (1) and / or the outlet of the downstream tunnel (2); The personnel evacuate towards the head orientation of the train (6), and judge whether there is a train (6) in the downstream tunnel (2); If so, the personnel leave the tunnel from the outlet of the upstream tunnel (1); if not, the personnel leave the tunnel from the outlet of the upstream tunnel (1) and / or the inlet of the downstream tunnel (2).

Images