JP7381700B2 - Fire ventilation and smoke evacuation systems and methods for atrium-type subway stations - Google Patents

Description

The present invention relates to the technical field of station ventilation and smoke evacuation, and in particular to a fire ventilation and smoke evacuation system and method for atrium-type subway stations.

The prior art with publication number CN111119972B provides a station building ventilation and smoke evacuation system and method for an underground station, including a public area smoke evacuation system and a tunnel smoke evacuation system; The tunnel smoke evacuation system includes a smoke evacuation fan and a first smoke evacuation passage communicating with the station building and the public area smoke evacuation fan, and the tunnel smoke evacuation system includes a station tunnel smoke evacuation system and/or a section tunnel smoke evacuation system communicating with the station building. If the tunnel smoke exhaust system includes a station tunnel smoke exhaust system, the station tunnel smoke exhaust system includes a station tunnel heat removal fan, and a second smoke exhaust passage that communicates the station building and the station tunnel heat removal fan, When the smoke exhaust system includes a section tunnel smoke exhaust system, the section tunnel smoke exhaust system includes a section tunnel fan and a third smoke exhaust passage communicating the section tunnel fan with the station building. The underground station ventilation and smoke evacuation system and method provided by the invention can greatly improve the smoke evacuation effect, reduce construction and modification costs, and effectively improve the safety level.

According to the ``Subway Design Standards,'' ``the construction area of each smoke-free zone in the public areas of station buildings and platforms shall not exceed 2000 ^m2 ,'' and considering the actual situation, Since the total platform area generally exceeds 2000 ^m2 , the station building and platform need to be divided into different smoke-proof zones, and the method is as follows. The station building and the platform are separated by a floor, and an escalator is installed between the station building and the platform.The escalator is equipped with a smoke-proof vertical wall, so that smoke is exhausted from the platform and there is a certain amount of smoke at the escalator entrance. Ensure that there is a flow velocity (above 1.5 m/s) so that in the event of a fire on the platform, smoke does not spread to the station building.

However, in atrium-style stations, the opening in the atrium is large and the opening between the station building and the platform is too large, so when a fire breaks out on the platform, the flow rate from the station building to the platform is too slow, and the smoke The upward spread cannot be effectively suppressed.

More common is to use the atrium as an independent smoke-proof zone, install a separate smoke extraction system, and install fire shutters at the connection between the atrium and the station building, so that in the event of a fire, the fire shutters falls to the ground, completely separating the atrium from the station building. This approach can solve the problem of smoke prevention and smoke evacuation to some extent in atrium-type stations, but considering the large area of the atrium, it is necessary to install fire shutters around the atrium and a separate smoke evacuation system. , and the cost is high. In addition, when a fire occurs on a platform, all the fire shutters around the atrium must be linked at once, which greatly reduces the reliability of the system. The area of the opening may exceed the standard, resulting in the downward flow velocity of the opening between the station building and the platform being relatively slow, effectively suppressing platform smoke from spreading to the station building. Failure to do so will result in casualties.

Embodiments of the present invention provide a fire ventilation and smoke evacuation system and method for an atrium-type subway station, and solve the problems of the high cost of the smoke evacuation system and the reduced reliability of the smoke evacuation system due to excessive interlocking equipment in the prior art. solve problems.

The embodiment of the present invention adopts the following technical solutions. The public area of the station building, the public area of the platform, the atrium, the smoke extraction system, the ventilation system and the heat removal system, the platform public area being located at the lower part of the station building public area, the platform public area and the station building public area; an escalator is installed between the escalators, and a downward air curtain is installed at the entrance of each escalator, and the atrium passes through the middle of the public area of the station building and the public area of the platform, and the atrium of the public area of the station building Smoke-proof vertical walls will be installed around both the atrium of the public areas of the station building and the atrium of the public areas of the platform, the public areas of the said station building, the atrium and the public areas of the platform will be equipped with smoke extraction and ventilation systems, and the public areas of the station building and the atrium will be equipped with smoke extraction and ventilation systems. The smoke and ventilation system branches will be shared, and the public areas of the platform will be equipped with a heat removal system.

Furthermore, the smoke exhaust system includes a station building A end smoke exhaust pipe and a station building B end smoke exhaust pipe, and the station building A end smoke exhaust pipe and the station building B end smoke exhaust pipe are respectively arranged at both ends of the public area of the station building,
One end of the station building A-end smoke exhaust pipe is connected to a first smoke exhaust fan, and the other end extends to the inside of the atrium,
One end of the station building B end smoke exhaust pipe is connected to the second smoke exhaust fan, and the other end extends into the atrium.
The station building A end smoke exhaust pipe is equipped with multiple station building A end smoke exhaust ports and atrium A end smoke exhaust ports.
The station building B end smoke exhaust pipe is equipped with multiple station building B end smoke exhaust ports and atrium B end smoke exhaust ports.
The atrium A-end smoke outlet and the atrium B-end smoke outlet are located inside the smoke-proof vertical wall, and the station building A-end smoke outlet and the station building B-end smoke outlet are located outside the smoke-proof vertical wall.
An electric air valve for smoke exhaust is installed inside each station building A-end smoke exhaust, atrium A-end smoke exhaust, station building B-end smoke exhaust, and atrium B-end smoke exhaust. can independently control the opening and closing of smoke exhaust vents installed at the same location.

Further, the other end of the first smoke exhaust fan is sequentially connected to the first smoke exhaust air valve and the first smoke exhaust booth, and the other end of the second smoke exhaust fan is sequentially connected to the second smoke exhaust air valve and the second smoke exhaust booth. A third smoke exhaust air valve is installed between the station building A end smoke exhaust pipe and the first smoke exhaust fan, and a fourth smoke exhaust air valve is installed between the station building B end smoke exhaust pipe and the second smoke exhaust fan. It will be done.

Furthermore, the smoke exhaust system further includes a platform A end smoke exhaust pipe, a platform B end smoke exhaust pipe, a fifth smoke exhaust air valve, and a sixth smoke exhaust air valve,
The platform A end smoke exhaust pipe and the platform B end smoke exhaust pipe are arranged at both ends of the public area of the platform,
One end of the platform A end smoke exhaust pipe is connected to a first smoke exhaust fan, and the other end extends to the outside of the atrium;
One end of the platform B end smoke exhaust pipe is connected to a second smoke exhaust fan, and the other end extends to the outside of the atrium;
The platform A end smoke exhaust pipe is provided with a plurality of platform A end smoke exhaust ports at equal intervals, and the platform B end smoke exhaust pipe is provided with a plurality of platform B end smoke exhaust ports at equal intervals. Electric air valves for smoke exhaust are not provided at the smoke outlet and the platform B end smoke outlet, so that the platform A end smoke outlet and the platform B end smoke outlet are always open, and the platform A end smoke outlet and platform B end smoke outlet are always open. The B-end smoke outlet is located outside the smoke-proof vertical wall,
A fifth smoke exhaust air valve is provided between the platform A end smoke exhaust pipe and the first smoke exhaust fan, and a sixth smoke exhaust air valve is provided between the platform B end smoke exhaust pipe and the second smoke exhaust fan.

Furthermore, the ventilation system includes a station building A end air supply duct and a station building B end air supply duct,
The station building A end air supply duct and the station building B end air supply duct are arranged at both ends of a public area of the station building,
One end of the station building A end air supply duct is connected to the first blower fan, and the other end extends to the inside of the atrium.
One end of the station building B end air supply duct is connected to the second blower fan, and the other end extends to the inside of the atrium.
The station building A end air supply duct is provided with a plurality of station building A end air supply ports and atrium A end air supply ports at equal intervals, and the station building B end air supply duct is provided with a plurality of station building B end air supply ports and atrium. B-end air supply ports are provided at equal intervals,
Electric air valves for air supply ports are installed at each station building A end air supply port, atrium A end air supply port, station building B end air supply port, and atrium B end air supply port. , the opening and closing of air supply ports installed at the same location can be controlled individually.

Further, the other end of the first blower fan is sequentially connected to the first air supply air valve and the first air supply booth, and the other end of the second blower fan is sequentially connected to the second air supply air valve and the second air supply booth, A third air supply valve is provided between the station building A end air supply duct and the first ventilation fan, and a fourth air supply air valve is provided between the station building B end air supply duct and the second ventilation fan.

Furthermore, the ventilation system further includes a platform A end air supply duct, a platform B end air supply duct, a fifth air supply air valve, and a sixth air supply air valve,
The platform A end air supply duct and the platform B end air supply duct are arranged at both ends of a public area of the platform,
One end of the platform A end air supply duct is connected to a first blower fan, and the other end extends to the outside of the atrium;
One end of the platform B end air supply duct is connected to a second blower fan, and the other end extends to the outside of the atrium;
The platform A end air supply duct is provided with a plurality of platform A end air supply ports at equal intervals, and the platform B end air supply duct is provided with a plurality of platform B end air supply ports at equal intervals. The end air supply port and the platform B end air supply port are located on the outside of the smoke-proof vertical wall;
A fifth air supply valve is provided between the platform A end air supply duct and the first blower fan, and a sixth air supply air valve is provided between the platform B end air supply duct and the second blower fan.

Furthermore, the heat removal system includes a platform A-end heat removal system smoke exhaust pipe and a platform B-end heat removal system smoke exhaust pipe arranged at both ends of the public area of the platform,
One end of the smoke exhaust pipe for the platform A end heat removal system is connected to a first heat removal fan, and the other end extends to the outside of the atrium;
One end of the smoke exhaust pipe for the platform B end heat removal system is connected to a second heat removal fan, and the other end extends to the outside of the atrium;
The platform A end heat removal system smoke exhaust pipe is provided with a first smoke exhaust port of the heat removal system, and the platform B end heat removal system smoke exhaust pipe is provided with a second smoke exhaust port of the heat removal system. the first smoke outlet of the heat removal system and the second smoke outlet of the heat removal system are located outside the smoke-proof vertical wall;
The other end of the first heat removal fan is sequentially connected to a first heat removal air valve and a first heat removal booth, and the other end of the second heat removal fan is sequentially connected to a second heat removal air valve and a second heat removal booth, A third heat removal air valve is provided between the platform A end heat removal system flue gas pipe and the first heat removal fan, and a third heat removal air valve is provided between the platform B end heat removal system smoke flue pipe and the second heat removal fan. 4 heat removal air valves are provided.

Furthermore, a first silencer is provided between the third smoke exhaust air valve and the first smoke exhaust fan and between the fifth smoke exhaust air valve and the first smoke exhaust fan,
A second silencer is provided between the fourth smoke exhaust air valve and the second smoke exhaust fan and between the sixth smoke exhaust air valve and the second smoke exhaust fan,
A third silencer is provided between the third air supply air valve and the first ventilation fan and between the fifth air supply air valve and the first ventilation fan,
A fourth silencer is provided between the fourth air supply air valve and the second blower fan and between the sixth air supply air valve and the second blower fan,
A fifth silencer is provided between the third heat removal air valve and the first heat removal fan, and a sixth silencer is provided between the fourth heat removal air valve and the second heat removal fan.

A method using a fire ventilation and smoke extraction system for an atrium-type subway station, the method comprising:
In the event of a fire in a public area of the platform,
S1: When a fire occurs in the public area of the platform, the first smoke exhaust fan and the second smoke exhaust fan are activated, and the first smoke exhaust air valve, the second smoke exhaust air valve, the fifth smoke exhaust air valve, and the sixth smoke exhaust air valve are activated. Open the 3rd smoke exhaust air valve and the 4th smoke exhaust air valve, close the smoke exhaust air valve at the station building A end smoke exhaust outlet, the smoke exhaust air valve at the station building B end smoke exhaust outlet, and the atrium A end. The electric air valve for smoke exhaust at the smoke exhaust outlet and the electric air valve for smoke exhaust at the atrium B end smoke outlet remain in their original state, so both the first smoke exhaust fan and the second smoke exhaust fan are installed on the platform. a step for exhausting smoke from public areas;
S2: Operate the first heat removal fan and the second heat removal fan, open the first heat removal air valve, the second heat removal air valve, the third heat removal air valve, and the fourth heat removal air valve, and open the first heat removal air valve of the heat removal system. exhausting the smoke from the public areas of the platform through a smoke vent, a second smoke outlet of the heat removal system;
S3: Operate the first blower fan and the second blower fan, open the first air supply air valve, second air air valve, third air air valve, and fourth air air valve, and open the fifth air air valve and sixth air air valve. Close the air valve, and open the electric air valve for the air supply port at the air supply port at the A end of the station building, the electric air valve for the air supply port at the air supply port at the B end of the station building, the electric air valve for the air supply port at the air supply port at the A end of the atrium, opening an electric air valve for the air supply port at the atrium B end air supply port, thereby causing the first ventilation fan and the second ventilation fan to supply air to the public area of the station building and the atrium;
S4: activating an air curtain of the escalator to prevent smoke in the public area of the platform from spreading from the escalator entrance to the public area of the station building;
If a fire breaks out in a public area of the station building,
S1: When a fire occurs in the public area of the station building, the first smoke exhaust fan and the second smoke exhaust fan are activated, and the first smoke exhaust air valve, second smoke exhaust air valve, third smoke exhaust air valve, and fourth smoke exhaust air valve are activated. , close the 5th smoke exhaust air valve and the 6th smoke exhaust air valve, open the electric air valve for the smoke exhaust outlet at the smoke exhaust outlet at the A end of the station building, and the electric air valve for the smoke exhaust outlet at the smoke exhaust outlet at the B end of the station building. The electric air valve for smoke exhaust at the smoke exhaust outlet at end A and the electric air valve for smoke exhaust at the smoke exhaust outlet at atrium B end are closed. emitting smoke only to an area other than the atrium of the area;
S2: Stopping the operation of the first heat removal fan and the second heat removal fan, and closing the first heat removal air valve, the second heat removal air valve, the third heat removal air valve, and the fourth heat removal air valve;
S3: Operate the first blower fan and the second blower fan, open the first air supply air valve, the second air supply air valve, the third air supply air valve, and the fourth air supply air valve, and open the fifth and sixth air supply air valves. Close the air supply air valve, close the electric air valve for the air supply port at the air supply port at the A end of the station building, close the electric air valve for the air supply port at the air supply port at the B end of the station building, and close the electric air valve for the air supply port at the air supply port at the A end of the atrium. opening the electric air valve, an electric air valve for the air supply port located at the atrium B end air supply port, thereby causing the first ventilation fan and the second ventilation fan to supply air to the atrium;
S4: activating an air curtain of the escalator to prevent smoke from the station building from spreading from the escalator entrance to the public area of the platform;
If a fire breaks out in the atrium,
S1: When a fire occurs in the atrium, activate the first smoke exhaust fan and the second smoke exhaust fan, open the first smoke exhaust air valve, the second smoke exhaust air valve, the third smoke exhaust air valve, and the fourth smoke exhaust air valve, Close the 5th smoke exhaust air valve and the 6th smoke exhaust air valve, close the electric air valve for smoke exhaust at the station building A end smoke exhaust, close the smoke exhaust electric air valve at the station building B end smoke exhaust, and close the atrium A end smoke exhaust air valve. Open the electric air valve for smoke exhaust at the smoke outlet and the electric air valve for smoke exhaust at the atrium B end smoke outlet, and this will cause the first and second smoke exhaust fans to operate at the atrium in the public area of the station building. emitting smoke only to the area;
S2: Stopping the operation of the first heat removal fan and the second heat removal fan, and closing the first heat removal air valve, the second heat removal air valve, the third heat removal air valve, and the fourth heat removal air valve;
S3: Operate the first blower fan and the second blower fan, open the first air supply air valve, second air air valve, third air air valve, and fourth air air valve, and open the fifth air air valve and sixth air air valve. Close the air valve, open the electric air valve for the air supply port at the air supply port at the end of the station building A, open the electric air valve for the air supply port located at the air supply port at the end of the station building, and open the electric air valve for the air supply port located at the air supply port at the end of the atrium A. closing the electric air valve for the air supply port located at the atrium B end air supply port, thereby causing the first ventilation fan and the second ventilation fan to supply air to an area other than the atrium in a public area of the station building; include.

The above at least one technical solution adopted in the embodiments of the present invention can achieve the following beneficial effects.
Firstly, the invention proposes a fire ventilation and smoke evacuation system and method suitable for atrium-type stations. The system eliminates the fire shutters around the atrium in public areas of the station building, reduces the number of interlocking equipment in the event of a fire, improves system reliability, and improves the ventilation and smoke evacuation system of the station building and the ventilation and smoke evacuation of the atrium. By installing a combined system and installing independent air valves at the air supply and smoke exhaust ports in the station building and atrium, and controlling the opening and closing of each air supply and smoke exhaust port individually, the station building, platform, Fire outbreaks in various locations, such as the atrium, can meet smoke prevention and smoke evacuation needs.

Second, the public areas of the atrium and station building share a set of smoke exhaust pipes and air supply pipes, and the ventilation and smoke exhaust system can be controlled by controlling the opening and closing of the smoke exhaust and air supply air valves. Controlled smoke/air supply to the atrium area and public areas of the station building other than the atrium. The solution not only meets the needs of ventilation and smoke evacuation during fires, but also reduces the investment in fans and air ducts, and also solves the problem of too many air ducts and it is difficult to arrange them rationally.

Third, air curtains are installed at escalator entrances to prevent smoke from spreading from the platform to the station building or from the station building to the platform.

The accompanying drawings described herein are used for a better understanding of the invention and form part of the invention, and the schematic embodiments of the invention and their description are used to explain the invention. and do not constitute an undue limitation on the invention. In the attached drawing,
FIG. 1 is a schematic diagram of a ventilation/smoke exhaust system for a station building, platform, and atrium in an embodiment of the present invention. FIG. 2 is a schematic diagram of the layout of a station building, platform, and atrium ventilation and smoke extraction system in an embodiment of the invention. FIG. 3 is a schematic diagram of the escalator and air curtain layout in an embodiment of the present invention.

In order to make the objectives, technical solutions and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely explained below, together with specific embodiments of the present invention and corresponding drawings. Explain. Obviously, the described embodiments are only some, but not all, of the embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without any creative efforts fall within the protection scope of the present invention.

The technical solutions provided by each embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings.

The atrium-type subway station fire ventilation and smoke evacuation system provided by the embodiment of the present invention includes a public area 1 of the station building, a public area 2 of the platform, an atrium 3, a smoke evacuation system 4, a ventilation system 5 and a heat removal system. 6, the public area 2 of the platform is located below the public area 1 of the station building, and an escalator 7 is installed between the public area 2 of the platform and the public area 1 of the station building, and at the entrance of each escalator 7. An air curtain 71 is installed downward, and the atrium 3 passes through the central part of the public area 1 of the station building and the public area 2 of the platform, and the atrium 3 in the public area 1 of the station building and the atrium in the public area 2 of the platform A smoke-proof vertical wall 8 is provided around the station building, and a smoke extraction system 4 and a ventilation system 5 are installed in the public area 1 of the station building, the atrium 3 and the public area 2 of the platform, so that the public area 1 and the atrium 3 of the station building are Sharing the branch of the smoke extraction system 4 and the ventilation system 5, a heat removal system 6 is installed in the public area 2 of the platform.

Preferably, the smoke exhaust system 4 includes a station building A end smoke exhaust pipe 419 and a station building B end smoke exhaust pipe 420, and the station building A end smoke exhaust pipe 419 and the station building B end smoke exhaust pipe 420 are respectively located in public areas of the station building. placed at both ends of 1,
One end of the station building A-end smoke exhaust pipe 419 is connected to the first smoke exhaust fan 405, and the other end extends to the inside of the atrium 3,
One end of the station building B end smoke exhaust pipe 420 is connected to the second smoke exhaust fan 406, and the other end extends to the inside of the atrium 3,
The station building A end smoke exhaust pipe 419 is provided with a plurality of station building A end smoke exhaust ports 413 and atrium A end smoke exhaust ports 417,
The station building B end smoke exhaust pipe 420 is provided with a plurality of station building B end smoke exhaust ports 414 and atrium B end smoke exhaust ports 418,
Atrium A end smoke outlet 417 and atrium B end smoke outlet 418 are located inside the smoke-proof vertical wall 8 , and station building A-end smoke outlet 413 and station building B-end smoke outlet 414 are located outside the smoke-proof vertical wall 8 . Located in
Electric air valves for smoke exhaust are installed inside each station building A-end smoke exhaust port 413, atrium A-end smoke exhaust port 417, station building B-end smoke exhaust port 414, and atrium B-end smoke exhaust port 418. Electric air valves for mouths can independently control the opening and closing of smoke exhaust vents that are installed at the same location.

Preferably, the other end of the first smoke exhaust fan 405 is sequentially connected to the first smoke exhaust air valve 403 and the first smoke exhaust booth 401, and the other end of the second smoke exhaust fan 406 is connected to the second smoke exhaust air valve 404 and the first smoke exhaust booth 401. A third smoke exhaust air valve 409 is sequentially connected to the second smoke exhaust booth 402, is provided between the station building A end smoke exhaust pipe 419 and the first smoke exhaust fan 405, and is connected to the station building B end smoke exhaust pipe 420 and the second smoke exhaust air valve 409. A fourth smoke exhaust air valve 410 is provided between the smoke fan 406 and the smoke fan 406 .

Preferably, the smoke exhaust system 4 further includes a platform A end smoke exhaust pipe 421, a platform B end smoke exhaust pipe 422, a fifth smoke exhaust air valve 411, and a sixth smoke exhaust air valve 412,
The platform A end smoke exhaust pipe 421 and the platform B end smoke exhaust pipe 422 are arranged at both ends of the public area 2 of the platform,
One end of the platform A end smoke exhaust pipe 421 is connected to the first smoke exhaust fan 405, and the other end extends to the outside of the atrium 3,
One end of the platform B end smoke exhaust pipe 422 is connected to the second smoke exhaust fan 406, and the other end extends to the outside of the atrium 3,
A plurality of platform A end smoke exhaust ports 415 are provided at equal intervals in the platform A end smoke exhaust pipe 421, and a plurality of platform B end smoke exhaust ports 416 are provided at equal intervals in the platform B end smoke exhaust pipe 422. Therefore, the platform A end smoke exhaust port 415 and the platform B end smoke exhaust port 416 are not provided with electric smoke exhaust air valves, so that the platform A end smoke exhaust port 415 and the platform B end smoke exhaust port 416 are always open. The platform A end smoke exhaust port 415 and the platform B end smoke exhaust port 416 are located outside the smoke prevention vertical wall 8,
A fifth smoke exhaust air valve 411 is provided between the platform A end smoke exhaust pipe 421 and the first smoke exhaust fan 405, and a sixth smoke exhaust air valve 411 is provided between the platform B end smoke exhaust pipe 422 and the second smoke exhaust fan 406. An air valve 412 is provided.

Preferably, the ventilation system 5 includes a station building A end air supply duct 519, a station building B end air supply duct 520,
The station building A end air supply duct 519 and the station building B end air supply duct 520 are arranged at both ends of the public area 1 of the station building,
One end of the station building A end air supply duct 519 is connected to the first blower fan 505, and the other end extends to the inside of the atrium 3,
One end of the station building B end air supply duct 520 is connected to the second blower fan 506, and the other end extends to the inside of the atrium 3,
A plurality of station building A end air supply ports 513 and atrium A end air supply ports 517 are provided at equal intervals in the station building A end air supply duct 519, and a plurality of station building B end air supply ports 514 and atrium A end air supply ports 517 are provided in the station building B end air supply duct 520. Atrium B end air supply ports 518 are provided at equal intervals,
Electric air valves for air supply ports are attached to each station building A end air supply port 513, atrium A end air supply port 517, station building B end air supply port 514, and atrium B end air supply port 518. Electric air valves can independently control the opening and closing of air intake ports installed at the same location.

Preferably, the other end of the first blower fan 505 is sequentially connected to the first supply air valve 503 and the first air supply booth 501, and the other end of the second blower fan 506 is connected to the second supply air valve 504 and the second supply air valve 504. A third air supply air valve 509 is sequentially connected to the air supply booth 502, and is provided between the station building A end air supply duct 519 and the first ventilation fan 505, and the station building B end air supply duct 520 and the second ventilation fan 506. A fourth air supply air valve 510 is provided between the two.

Preferably, the ventilation system 5 further includes a platform A end air supply duct 521, a platform B end air supply duct 522, a fifth air supply air valve 511, and a sixth air supply air valve 512,
The platform A end air supply duct 521 and the platform B end air supply duct 522 are arranged at both ends of the public area 2 of the platform,
One end of the platform A end air supply duct 521 is connected to the first ventilation fan 505, and the other end extends to the outside of the atrium 3,
One end of the platform B end air supply duct 522 is connected to the second blower fan 506, and the other end extends to the outside of the atrium 3,
A plurality of platform A end air supply ports 515 are provided at equal intervals in the platform A end air supply duct 521, and a plurality of platform B end air supply ports 516 are provided at equal intervals in the platform B end air supply duct 522. platform A end air supply port 515 and platform B end air supply port 516 are located outside the smoke-proof vertical wall 8;
A fifth air supply air valve 511 is provided between the platform A end air supply duct 521 and the first blower fan 505, and a sixth air supply air valve 512 is provided between the platform B end air supply duct 522 and the second blower fan 506. is provided.

Preferably, the heat removal system 6 includes a platform A-end heat removal system smoke exhaust pipe 613 and a platform B-end heat removal system smoke exhaust pipe 614; Smoke exhaust pipes 614 for the B-end heat removal system are arranged at both ends of the public area 2 of the platform,
One end of the platform A end heat removal system smoke exhaust pipe 613 is connected to the first heat removal fan 605, and the other end extends to the outside of the atrium 3,
One end of the platform B end heat removal system smoke exhaust pipe 614 is connected to the second heat removal fan 606, and the other end extends to the outside of the atrium 3,
A first smoke exhaust port 611 of the heat removal system is provided in the platform A end heat removal system smoke exhaust pipe 613, and a second smoke exhaust port 612 of the heat removal system is provided in the platform B end heat removal system smoke exhaust pipe 614. the first smoke exhaust port 611 of the heat removal system and the second smoke exhaust port 612 of the heat removal system are located outside the smoke prevention vertical wall 8;
The other end of the first heat removal fan 605 is sequentially connected to the first heat removal air valve 603 and the first heat removal booth 601, and the other end of the second heat removal fan 606 is connected to the second heat removal air valve 604 and the second heat removal booth. 602, a third heat removal air valve 609 is provided between the platform A end heat removal system smoke exhaust pipe 613 and the first heat removal fan 605, and is connected to the platform B end heat removal system smoke exhaust pipe 614. A fourth heat removal air valve 610 is provided between the second heat removal fan 606 and the fourth heat removal air valve 610 .

Preferably, a first silencer 407 is provided between the third smoke exhaust air valve 409 and the first smoke exhaust fan 405 and between the fifth smoke exhaust air valve 411 and the first smoke exhaust fan 405,
A second silencer 408 is provided between the fourth smoke exhaust air valve 410 and the second smoke exhaust fan 406 and between the sixth smoke exhaust air valve 412 and the second smoke exhaust fan 406,
A third silencer 507 is provided between the third air supply air valve 509 and the first blower fan 505 and between the fifth air supply air valve 511 and the first blower fan 505,
A fourth silencer 508 is provided between the fourth air supply air valve 510 and the second blower fan 506 and between the sixth air supply air valve 512 and the second blower fan 506,
A fifth silencer 607 is provided between the third heat removal air valve 609 and the first heat removal fan 605, and a sixth silencer 608 is provided between the fourth heat removal air valve 610 and the second heat removal fan 606.

The heat removal system 6 is normally used to remove the heat generated when a train stops at a station, and to assist in smoke evacuation in case of a fire.

The method for using the fire ventilation and smoke extraction system in an atrium subway station includes the following steps:
If a fire breaks out in public area 2 of the platform,
S1: When a fire occurs in the public area 2 of the platform, the first smoke exhaust fan 405 and the second smoke exhaust fan 406 are activated, and the first smoke exhaust air valve 403, the second smoke exhaust air valve 404, and the fifth smoke exhaust air valve 411 are activated. , open the sixth smoke exhaust air valve 412, close the third smoke exhaust air valve 409, and the fourth smoke exhaust air valve 410, and apply the electric air valve for smoke exhaust at the station building A end smoke exhaust port 413 to the station building B end smoke exhaust port 414. The electric air valve for a certain smoke exhaust outlet, the electric air valve for smoke exhaust outlet located at the atrium A end smoke exhaust outlet 417, and the electric smoke exhaust air valve for the smoke exhaust outlet located at the atrium B end smoke exhaust outlet 418 remain in their original states, so the first exhaust outlet Both the smoke fan 405 and the second smoke evacuation fan 406 exhaust smoke from the public area 2 of the platform.
S2: Operate the first heat removal fan 605 and the second heat removal fan 606, open the first heat removal air valve 603, the second heat removal air valve 604, the third heat removal air valve 609, and the fourth heat removal air valve 610, The smoke in the public area 2 of the platform is exhausted through the first smoke outlet 611 of the heat removal system and the second smoke outlet 612 of the heat removal system.
S3: Operate the first ventilation fan 505 and the second ventilation fan 506, open the first supply air valve 503, second supply air valve 504, third supply air valve 509, and fourth supply air valve 510, and open the fifth supply air valve The air valve 511 and the sixth air supply air valve 512 are closed, and the electric air valve for the air supply port located at the station building A end air supply port 513, the electric air valve for the air supply port located at the station building B end air supply port 514, and the atrium A end air supply are closed. Open the electric air valve for the air supply port located at the port 517 and the electric air valve for the air supply port located at the atrium B end air supply port 518, thereby causing the first ventilation fan 505 and the second ventilation fan 506 to operate in the public area 1 of the station building. Supply air to atrium 3.
S4: The air curtain 71 of the escalator 7 is operated to prevent smoke in the public area 2 of the platform from spreading from the escalator 7 entrance to the public area 1 of the station building.
If a fire occurs in public area 1 of the station building,
S1: When a fire occurs in the public area 1 of the station building, the first smoke exhaust fan 405 and the second smoke exhaust fan 406 are activated, and the first smoke exhaust air valve 403, second smoke exhaust air valve 404, and third smoke exhaust air valve 409 are activated. , open the fourth smoke exhaust air valve 410, close the fifth smoke exhaust air valve 411, and the sixth smoke exhaust air valve 412, and apply the electric air valve for smoke exhaust at the station building A end smoke exhaust port 413 to the station building B end smoke exhaust port 414. Open the electric air valve for the smoke exhaust outlet, close the electric air valve for the smoke exhaust outlet located at the smoke exhaust outlet 417 at the atrium A end, and close the electric air valve for the smoke exhaust outlet located at the smoke exhaust outlet 418 at the atrium B end. A smoke fan 405 and a second smoke exhaust fan 406 exhaust smoke only to areas other than the atrium 3 of the public area 1 of the station building.
S2: Stop the operation of the first heat removal fan 605 and the second heat removal fan 606, and close the first heat removal air valve 603, second heat removal air valve 604, third heat removal air valve 609, and fourth heat removal air valve 610. .
S3: Operate the first blower fan 505 and the second blower fan 506, open the first air supply air valve 503, the second air supply air valve 504, the third air supply air valve 509, and the fourth air supply air valve 510, and Close the air supply air valve 511 and the sixth air supply air valve 512, close the electric air valve for the air supply port at the air supply port 513 at the station building A end, and close the electric air valve for the air supply port at the station building B end air supply port 514, and close the electric air valve for the air supply port at the station building B end air supply port 514. The electric air valve for the air supply port located at the end air supply port 517 and the electric air valve for the air supply port located at the atrium B end air supply port 518 are opened, and thereby the first ventilation fan 505 and the second ventilation fan 506 are installed in the atrium 3. supply air.
S4: The air curtain 71 of the escalator 7 is operated to prevent smoke from the station building from spreading from the escalator 7 entrance to the public area 2 of the platform.
If a fire breaks out in Atrium 3,
S1: When a fire occurs in the atrium 3, the first smoke exhaust fan 405 and the second smoke exhaust fan 406 are activated, and the first smoke exhaust air valve 403, the second smoke exhaust air valve 404, the third smoke exhaust air valve 409, and the fourth Open the smoke exhaust air valve 410, close the fifth smoke exhaust air valve 411 and the sixth smoke exhaust air valve 412, and open the electric air valve for the smoke exhaust outlet at the station building A end smoke outlet 413, and the smoke exhaust air valve at the station building B end smoke exhaust outlet 414. Close the electric air valve for smoke exhaust, open the electric air valve for smoke exhaust at the smoke exhaust outlet 417 at the atrium A end, and open the electric air valve for smoke exhaust at the smoke exhaust outlet 418 at the atrium B end, and thereby the first smoke exhaust fan 405 A second smoke exhaust fan 406 exhausts smoke only to the atrium 3 area of the public area 1 of the station building.
S2: Stop the operation of the first heat removal fan 605 and the second heat removal fan 606, and close the first heat removal air valve 603, second heat removal air valve 604, third heat removal air valve 609, and fourth heat removal air valve 610. .
S3: Operate the first ventilation fan 505 and the second ventilation fan 506, open the first supply air valve 503, second supply air valve 504, third supply air valve 509, and fourth supply air valve 510, and open the fifth supply air valve Close the air valve 511 and the sixth air supply air valve 512, open the electric air valve for the air supply port located at the air supply port 513 at the station building A end, and the electric air valve for the air supply port located at the station building B end air supply port 514, and open the electric air valve for the air supply port located at the station building B end air supply port 514. The electric air valve for the air supply port located at the air supply port 517 and the electric air valve for the air supply port located at the atrium B end air supply port 518 are closed, and as a result, the first ventilation fan 505 and the second ventilation fan 506 are Air is supplied to areas other than atrium 3 in area 1.

The above description is only an example of the invention and is not intended to limit the invention. For those skilled in the art, the present invention is capable of various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the invention are intended to be included within the scope of the claims.

1 Public areas of the station building,
2.Public areas of the platform;
3 Atrium,
401 1st smoke exhaust booth,
402 Second smoke exhaust booth,
403 First smoke exhaust air valve,
404 Second smoke exhaust air valve,
405 First smoke exhaust fan,
406 Second smoke exhaust fan,
407 1st silencer,
408 Second silencer,
409 3rd smoke exhaust air valve,
410 4th smoke exhaust air valve,
411 5th smoke exhaust air valve,
412 6th smoke exhaust air valve,
413 Station building A end smoke outlet,
414 Station building B end smoke outlet,
415 Platform A end smoke outlet,
416 Platform B end smoke outlet,
417 Atrium A end smoke outlet,
418 Atrium B end smoke outlet,
419 Station building A end smoke exhaust pipe,
420 Station building B end smoke exhaust pipe,
421 Platform A end smoke exhaust pipe,
422 Platform B end smoke exhaust pipe,
501 1st air supply booth,
502 2nd air supply booth,
503 first air supply air valve,
504 second air supply air valve,
505 first blower fan,
506 second blower fan,
507 Third silencer,
508 4th Silencer,
509 third air supply air valve,
510 fourth supply air valve,
511 5th supply air valve,
512 6th supply air valve,
513 Station building A end air supply port,
514 Station building B end air supply port,
515 Platform A end air supply port,
516 Platform B end air supply port,
517 Atrium A end air supply port,
518 Atrium B end air supply port,
519 Station building A end air supply duct,
520 Station building B end air supply duct,
521 Platform A end air supply duct,
522 Platform B end air supply duct,
601 1st heat removal booth,
602 Second heat removal booth,
603 first heat removal air valve,
604 second heat removal air valve,
605 first heat removal fan,
606 second heat removal fan,
607 5th Silencer,
608 6th Silencer,
609 Third heat removal air valve,
610 4th heat removal air valve,
611 First smoke exhaust port of heat removal system,
612 Second smoke exhaust port of heat removal system,
613 Platform A end heat removal system smoke exhaust pipe,
614 Platform B end heat removal system smoke exhaust pipe,
7 escalator,
71 Air curtain,
8 Smoke-proof vertical walls.

Claims (8)

Fire ventilation and smoke evacuation system for atrium-type subway stations, which includes station building public areas (1), platform public areas (2), atriums (3), smoke evacuation systems (4), ventilation systems (5), and a heat removal system (6), wherein the platform public area (2) is located below the station building public area (1), and between the platform public area (2) and the station building public area (1); Escalators (7) are installed, and air curtains (71) are installed downward at the entrances and exits of each escalator (7), and the atrium (3) is divided into the station building public area (1) and the platform public area (2). ), a smoke-proof vertical wall (8) is provided around the atrium (3) of the public area (1) of said station building and the atrium (3) of the public area (2) of the platform; The public areas (1), the atrium (3) and the platform public areas (2) are equipped with smoke extraction systems (4) and ventilation systems (5), and the public areas (1) and the atrium (3) of the station building are equipped with smoke extraction systems (4) and ventilation systems (5). Sharing the branch of the smoke extraction system (4) and the ventilation system (5), the public area of the platform (2) is equipped with a heat removal system (6),
The smoke exhaust system (4) includes a station building A end smoke exhaust pipe (419) and a station building B end smoke exhaust pipe (420), the station building A end smoke exhaust pipe (419) and the station building B end smoke exhaust pipe (420). are placed at each end of the public area (1) of the station building,
One end of the station building A-end smoke exhaust pipe (419) is connected to the first smoke exhaust fan (405), and the other end extends to the inside of the atrium (3),
One end of the station building B end smoke exhaust pipe (420) is connected to the second smoke exhaust fan (406), and the other end extends to the inside of the atrium (3),
The station building A end smoke exhaust pipe (419) is provided with a plurality of station building A end smoke exhaust ports (413) and atrium A end smoke exhaust ports (417).
The station building B end smoke exhaust pipe (420) is provided with a plurality of station building B end smoke exhaust ports (414) and atrium B end smoke exhaust ports (418).
Atrium A end smoke outlet (417) and atrium B end smoke outlet (418) are located inside the smoke prevention vertical wall (8), station building A end smoke outlet (413), station building B end smoke outlet ( 414) is located outside the smoke-proof vertical wall (8),
Electric air valves for smoke exhaust are installed inside each station building A-end smoke exhaust port (413), atrium A-end smoke exhaust port (417), station building B-end smoke exhaust port (414), and atrium B-end smoke exhaust port (418). installed, which allows the electric air valve for smoke vents to independently control the opening and closing of smoke vents installed in the same position.
The ventilation system (5) includes a station building A end air supply duct (519) and a station building B end air supply duct (520),
The station building A end air supply duct (519) and the station building B end air supply duct (520) are arranged at both ends of the public area (1) of the station building,
One end of the station building A end air supply duct (519) is connected to the first ventilation fan (505), and the other end extends to the inside of the atrium (3),
One end of the station building B end air supply duct (520) is connected to the second blower fan (506), and the other end extends to the inside of the atrium (3),
The station building A end air supply duct (519) is provided with a plurality of station building A end air supply ports (513) and atrium A end air supply ports (517) at equal intervals, and the station building B end air supply duct (520) is provided with a plurality of station building A end air supply ports (513) and atrium A end air supply ports (517). A plurality of station building B end air supply ports (514) and atrium B end air supply ports (518) are provided at equal intervals,
Electric air valves for air supply ports are installed at each station building A end air supply port (513), atrium A end air supply port (517), station building B end air supply port (514), and atrium B end air supply port (518). A fire ventilation/smoke exhaust system for an atrium-type subway station, characterized in that the electric air valves of the air supply ports can individually control the opening and closing of the air supply ports installed at the same position. The other end of the first smoke exhaust fan (405) is sequentially connected to the first smoke exhaust air valve (403) and the first smoke exhaust booth (401), and the other end of the second smoke exhaust fan (406) is connected to the second smoke exhaust air valve (403) and the first smoke exhaust booth (401). A third smoke exhaust air valve (409) is connected sequentially to the smoke exhaust air valve (404) and the second smoke exhaust booth (402), and is located between the station building A end smoke exhaust pipe (419) and the first smoke exhaust fan (405). 2. The atrium according to claim 1, wherein a fourth smoke exhaust air valve (410) is provided between the station building B end smoke exhaust pipe (420) and the second smoke exhaust fan (406). Fire ventilation and smoke extraction system for subway stations. The smoke exhaust system (4) further includes a platform A end smoke exhaust pipe (421), a platform B end smoke exhaust pipe (422), a fifth smoke exhaust air valve (411), and a sixth smoke exhaust air valve (412),
The platform A end smoke exhaust pipe (421) and the platform B end smoke exhaust pipe (422) are arranged at both ends of the platform public area (2),
One end of the platform A end smoke exhaust pipe (421) is connected to a first smoke exhaust fan (405), and the other end extends to the outside of the atrium (3),
One end of the platform B end smoke exhaust pipe (422) is connected to a second smoke exhaust fan (406), and the other end extends to the outside of the atrium (3),
The platform A end smoke exhaust pipe (421) is provided with a plurality of platform A end smoke exhaust ports (415) at equal intervals, and the platform B end smoke exhaust pipe (422) is provided with a plurality of platform B end smoke exhaust ports. (416) are provided at equal intervals, and the platform A end smoke exhaust port (415) and the platform B end smoke exhaust port (416) are not provided with electric air valves for smoke exhaust. The smoke outlet (415) and the platform B end smoke outlet (416) are always open, and the platform A end smoke outlet (415) and the platform B end smoke outlet (416) are connected to the smoke prevention vertical wall (8). located outside,
A fifth smoke exhaust air valve (411) is provided between the platform A end smoke exhaust pipe (421) and the first smoke exhaust fan (405), and a fifth smoke exhaust air valve (411) is provided between the platform B end smoke exhaust pipe (422) and the second smoke exhaust fan (405). 3. The fire ventilation and smoke evacuation system for an atrium-type subway station according to claim 2, characterized in that a sixth smoke evacuation air valve (412) is provided between the atrium-type subway station (406) and the sixth smoke evacuation air valve (412). The other end of the first ventilation fan (505) is connected to the first air supply air valve (503) and the first air supply booth (501) in sequence, and the other end of the second ventilation fan (506) is connected to the second air supply air valve (503) and the first air supply booth (501). A third air supply air valve (509) is connected sequentially to the air valve (504) and the second air supply booth (502), and is provided between the station building A end air supply duct (519) and the first ventilation fan (505). 4. The atrium type subway station according to claim 3, wherein a fourth air supply air valve (510) is provided between the station building B end air supply duct (520) and the second blower fan (506). Fire ventilation and smoke extraction system. The ventilation system (5) further includes a platform A end air supply duct (521), a platform B end air supply duct (522), a fifth air supply air valve (511), and a sixth air supply air valve (512),
The platform A end air supply duct (521) and the platform B end air supply duct (522) are arranged at both ends of the public area (2) of the platform,
One end of the platform A end air supply duct (521) is connected to the first blower fan (505), and the other end extends to the outside of the atrium (3),
One end of the platform B end air supply duct (522) is connected to a second blower fan (506), and the other end extends to the outside of the atrium (3),
The platform A end air supply duct (521) is provided with a plurality of platform A end air supply ports (515) at equal intervals, and the platform B end air supply duct (522) is provided with a plurality of platform B end air supply ports. (516) are provided at equal intervals, the platform A end air supply port (515) and the platform B end air supply port (516) are located outside the smoke-proof vertical wall (8),
A fifth air supply air valve (511) is provided between the platform A end air supply duct (521) and the first blower fan (505), and a fifth air supply air valve (511) is provided between the platform B end air supply duct (522) and the second blower fan (506). The fire ventilation and smoke evacuation system for an atrium-type subway station according to claim 4, characterized in that a sixth air supply air valve (512) is provided between the atrium-type subway station and the atrium-type subway station. The heat removal system (6) includes a platform A end heat removal system smoke exhaust pipe (613) and a platform B end heat removal system smoke exhaust pipe (614) located at both ends of the platform public area (2). including,
One end of the platform A end heat removal system smoke exhaust pipe (613) is connected to the first heat removal fan (605), and the other end extends to the outside of the atrium (3),
One end of the platform B end heat removal system smoke exhaust pipe (614) is connected to a second heat removal fan (606), and the other end extends to the outside of the atrium (3),
The platform A end heat removal system smoke exhaust pipe (613) is provided with the first smoke exhaust port (611) of the heat removal system, and the platform B end heat removal system smoke exhaust pipe (614) is provided with a heat removal system A second smoke outlet (612) of the system is provided, and a first smoke outlet (611) of the heat removal system and a second smoke outlet (612) of the heat removal system are provided outside the smoke prevention vertical wall (8). Position to,
The other end of the first heat removal fan (605) is sequentially connected to the first heat removal air valve (603) and the first heat removal booth (601), and the other end of the second heat removal fan (606) is connected to the second heat removal air valve (603) and the first heat removal booth (601). A third heat removal air valve (604) is connected sequentially to the second heat removal booth (602), and is connected between the platform A end heat removal system smoke exhaust pipe (613) and the first heat removal fan (605). 609) is provided, and a fourth heat removal air valve (610) is provided between the platform B end heat removal system smoke exhaust pipe (614) and the second heat removal fan (606). Fire ventilation and smoke exhaust system for atrium-type subway stations as described in item 5. A first silencer (407) between the third smoke exhaust air valve (409) and the first smoke exhaust fan (405) and between the fifth smoke exhaust air valve (411) and the first smoke exhaust fan (405). is established,
A second silencer (408) is provided between the fourth smoke exhaust air valve (410) and the second smoke exhaust fan (406) and between the sixth smoke exhaust air valve (412) and the second smoke exhaust fan (406). established,
A third silencer (507) is provided between the third air supply air valve (509) and the first blower fan (505) and between the fifth air supply air valve (511) and the first blower fan (505). ,
A fourth silencer (508) is provided between the fourth air supply air valve (510) and the second blower fan (506) and between the sixth air supply air valve (512) and the second blower fan (506). ,
A fifth silencer (607) is provided between the third heat removal air valve (609) and the first heat removal fan (605), and a fifth silencer (607) is provided between the fourth heat removal air valve (610) and the second heat removal fan (606). Fire ventilation and smoke evacuation system for an atrium-type subway station according to claim 6, characterized in that a sixth silencer (608) is provided in between. If a fire breaks out in the public area of the platform (2),
S1: When a fire occurs in the public area (2) of the platform, the first smoke exhaust fan (405) and the second smoke exhaust fan (406) are activated, and the first smoke exhaust air valve (403) and the second smoke exhaust air valve are activated. (404), open the 5th smoke exhaust air valve (411) and the 6th smoke exhaust air valve (412), close the 3rd smoke exhaust air valve (409) and the 4th smoke exhaust air valve (410), and station building A end smoke exhaust port. Electric air valve for smoke exhaust at (413), electric air valve for smoke exhaust at station building B end smoke exhaust (414), electric air valve for smoke exhaust at atrium A end smoke exhaust (417), atrium B Since the electric air valve for smoke exhaust at the end smoke exhaust (418) remains in its original state, both the first smoke exhaust fan (405) and the second smoke exhaust fan (406) are connected to the public area (2) of the platform. a step of exhausting the smoke;
S2: Activate the first heat removal fan (605) and second heat removal fan (606), and operate the first heat removal air valve (603), second heat removal air valve (604), third heat removal air valve (609), and Open the fourth heat removal air valve (610) to remove smoke from the public area (2) of the platform through the first smoke exhaust port (611) of the heat removal system and the second smoke exhaust port (612) of the heat removal system. a step of discharging;
S3: The first blower fan (505) and the second blower fan (506) are operated, and the first air supply air valve (503), the second air supply air valve (504), the third air supply air valve (509), and the fourth air supply air valve are activated. Open the air supply air valve (510), close the 5th air supply air valve (511) and the 6th air supply air valve (512), and open the electric air valve for the air supply port at the station building A end air supply port (513) and the station building B end. An electric air valve for the air supply port located at the air supply port (514), an electric air valve for the air supply port located at the atrium A end air supply port (517), an electric air valve for the air supply port located at the atrium B end air supply port (518) opening, thereby causing the first blower fan (505) and the second blower fan (506) to supply air to the public area (1) and the atrium (3) of the station building;
S4: Activating the air curtain (71) of the escalator (7) to prevent smoke in the platform public area (2) from spreading from the escalator (7) entrance to the station building public area (1). including
If a fire breaks out in the public area (1) of the station building,
S1: When a fire occurs in the public area (1) of the station building, the first smoke exhaust fan (405) and the second smoke exhaust fan (406) are activated, and the first smoke exhaust air valve (403) and the second smoke exhaust air valve are activated. (404), open the third smoke exhaust air valve (409) and fourth smoke exhaust air valve (410), close the fifth smoke exhaust air valve (411) and sixth smoke exhaust air valve (412), and station building A end smoke exhaust port. Open the electric air valve for smoke exhaust at (413), open the electric air valve for smoke exhaust at station building B end smoke exhaust (414), open the electric smoke exhaust air valve at atrium A end smoke exhaust (417), The electric air valve for smoke exhaust at the atrium B end smoke exhaust (418) is closed, and this causes the first smoke exhaust fan (405) and the second smoke exhaust fan (406) to operate in the public area (1) of the station building. exhausting smoke only to areas other than the atrium (3);
S2: The operation of the first heat removal fan (605) and the second heat removal fan (606) is stopped, and the first heat removal air valve (603), the second heat removal air valve (604), and the third heat removal air valve (609) are stopped. ) and closing the fourth heat removal air valve (610);
S3: The first blower fan (505) and the second blower fan (506) are operated, and the first air supply air valve (503), the second air supply air valve (504), the third air supply air valve (509), and the fourth air supply air valve are activated. Open the air supply air valve (510), close the fifth air supply air valve (511) and the sixth air supply air valve (512), and open the electric air valve for the air supply port located at the station building A end air supply port (513), station building B Close the electric air valve for the air supply port at the end air supply port (514), close the electric air valve for the air supply port at the atrium A end air supply port (517), and close the air supply port at the atrium B end air supply port (518). opening an electric air valve for supplying air to the atrium (3), thereby causing the first blower fan (505) and the second blower fan (506) to supply air to the atrium (3);
S4: activating an air curtain (71) of the escalator (7) to prevent smoke from the station building from spreading from the escalator (7) entrance to the public area (2) of the platform;
If a fire occurs in the atrium (3),
S1: When a fire occurs in the atrium (3), the first smoke exhaust fan (405) and the second smoke exhaust fan (406) are activated, and the first smoke exhaust air valve (403) and the second smoke exhaust air valve (404) are activated. , open the third smoke exhaust air valve (409) and the fourth smoke exhaust air valve (410), close the fifth smoke exhaust air valve (411) and the sixth smoke exhaust air valve (412), and open the station building A end smoke exhaust port (413). Close the electric air valve for smoke exhaust at the station building B end smoke exhaust (414), close the electric smoke exhaust air valve at the atrium A end smoke exhaust (417), and close the smoke exhaust electric air valve at the atrium A end smoke exhaust (417). The electric smoke exhaust air valve located at the smoke exhaust outlet (418) is opened, and thereby the first smoke exhaust fan (405) and the second smoke exhaust fan (406) are installed in the atrium (3) of the public area (1) of the station building. ) exhausting the smoke only to the area;
S2: The operation of the first heat removal fan (605) and the second heat removal fan (606) is stopped, and the first heat removal air valve (603), the second heat removal air valve (604), and the third heat removal air valve (609) are stopped. ) and closing the fourth heat removal air valve (610);
S3: The first blower fan (505) and the second blower fan (506) are operated, and the first air supply air valve (503), the second air supply air valve (504), the third air supply air valve (509), and the fourth air supply air valve are activated. Open the air supply air valve (510), close the 5th air supply air valve (511) and the 6th air supply air valve (512), and open the electric air valve for the air supply port at the station building A end air supply port (513) and the station building B end. Open the electric air valve for the air supply port at the air supply port (514), open the electric air valve for the air supply port at the atrium A end air supply port (517), and open the electric air valve for the air supply port at the atrium B end air supply port (518). closing the electric air valve, thereby causing the first blower fan (505) and the second blower fan (506) to supply air to an area other than the atrium (3) of the public area (1) of the station building; The method for ventilation and smoke evacuation of a fire ventilation and smoke evacuation system for an atrium-type subway station according to claim 6.