Smoke exhaust structure for atrium type metro

Abstract

The utility model provides a smoke exhaust structure for an atrium type subway, and relates to the technical field of rail transit. According to the structure, platform ventilation systems are arranged at the two ends of a platform body structure correspondingly, and a monitoring device is arranged between the platform ventilation systems at the two ends; the station hall main body structure is arranged at the top of the platform main body structure, the station hall main body structure and the platform main body structure are communicated through a passing structure to form a superposed arrangement structure, station hall ventilation systems are arranged at the two ends of the station hall main body structure respectively, and the station hall ventilation systems and the platform ventilation system are arranged on the same vertical axis. The air supply end of the station hall ventilation system communicates with the air inlet end of the platform ventilation system to form a smoke exhaust system, the smoke exhaust end of the smoke exhaust system extends towards the middle of the station hall body structure, and a tunnel fan is arranged between the station hall ventilation system and the station hall body structure and electrically connected with the monitoring device. And the air supply end of the tunnel fan is communicated with the air inlet end of the station hall ventilation system. The structure solves the problem that smoke cannot be timely and effectively discharged.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, and more specifically, to a smoke exhaust structure for atrium-style subways. Background Technology

[0002] In existing rail transit technologies, regulations require that a downwind velocity of at least 1.5 m / s be maintained at the openings of escalators and staircases between the station concourse and platform in underground stations to ensure effective smoke extraction during a fire. However, when the design incorporates an atrium to enlarge the opening area of ​​escalators and staircases, the conventional combination of dedicated smoke exhaust fans for public areas and tunnel fans often fails to meet this stringent velocity standard. Specifically, the increased opening area leads to a decrease in smoke extraction efficiency per unit area, failing to meet the expected downwind velocity of 1.5 m / s, resulting in the inability to effectively and promptly remove smoke in emergencies.

[0003] Therefore, there is an urgent need for a smoke exhaust structure for subway atriums to solve the problem of smoke not being able to be discharged in a timely and effective manner in emergency situations. Utility Model Content

[0004] The purpose of this utility model is to provide a smoke extraction structure for atrium-style subway systems to improve the aforementioned problems. To achieve this purpose, the technical solution adopted by this utility model is as follows:

[0005] A smoke exhaust structure for a subway atrium includes: a platform ventilation system installed at both ends of the main platform structure, with a monitoring device between the two platform ventilation systems; a concourse main structure, located on top of the platform main structure, the concourse main structure and the platform main structure connected by a passageway to form a superimposed arrangement; a concourse ventilation system installed at both ends of the concourse main structure, the concourse ventilation system and the platform ventilation system being arranged on the same vertical axis; the air supply end of the concourse ventilation system and the air inlet end of the platform ventilation system being connected to form a smoke exhaust system; the smoke exhaust end of the smoke exhaust system extending towards the middle of the concourse main structure; a tunnel fan installed between the concourse ventilation system and the wall of the concourse main structure; the tunnel fan being electrically connected to the monitoring device; and the air supply end of the tunnel fan being connected to the air inlet end of the concourse ventilation system.

[0006] Preferably, the platform ventilation system includes a platform interlayer air duct and platform side air vents. The platform interlayer air duct is arranged horizontally on the top surface of one end of the main platform structure, and the platform side air vents are opened at the top of the main platform structure. The air supply end of the platform interlayer air duct is connected to the platform side air vents.

[0007] Preferably, the station hall ventilation system includes station hall air vents, which are opened on the bottom surface of one end of the main structure of the station hall. The air supply end of the station hall air vents and the air inlet end of the platform mezzanine air duct are arranged on the same vertical axis and connected to form a first smoke exhaust system.

[0008] Preferably, the station hall ventilation system includes a station hall ventilation structure with an "L"-shaped cross-section, and one end of the station hall ventilation structure is connected to the air supply end of the tunnel fan.

[0009] Preferably, the platform ventilation system includes platform air vents, which are located at the top of the other end of the main platform structure. The air inlet of the platform air vents is arranged on the same vertical axis as the other end of the station hall ventilation structure and is connected to form a second smoke exhaust system.

[0010] Preferably, the station hall ventilation structure includes a station hall mezzanine duct and a station hall vertical duct. One end of the station hall mezzanine duct is connected to the air supply end of the tunnel fan, the other end of the station hall mezzanine duct is connected to one end of the station hall vertical duct, and the other end of the station hall vertical duct is connected to the air inlet end of the platform vent.

[0011] Preferably, the main structure of the platform has multiple platform atrium structures, and the main structure of the station hall has multiple station hall atrium structures. Each of the platform atrium structures is connected to the station hall atrium structure through a passageway to form a superimposed arrangement structure.

[0012] Preferably, the passage structure includes multiple ladder structures, one end of each ladder structure is arranged on the main structure of the platform to form a platform entrance / exit, and the other end of each ladder structure is arranged on the main structure of the concourse to form a concourse entrance / exit.

[0013] Preferably, the passage structure includes a vertical staircase structure, the bottom end of which is located on the main structure of the platform, and the top end of which is located on the main structure of the concourse. The entrances and exits at both ends of the vertical staircase structure and the multiple climbing staircase structures are arranged longitudinally along the platform atrium structure and the concourse atrium structure.

[0014] Preferably, the monitoring device includes a first smoke detector and a second smoke detector, which are respectively installed at the top of both ends of the platform atrium structure, and the first smoke detector, the second smoke detector and the tunnel fan are electrically connected.

[0015] The beneficial effects of this structure are:

[0016] This invention introduces a platform ventilation system, a station hall ventilation system monitoring device, and a tunnel fan. The air supply end of the station hall ventilation system and the air inlet of the platform ventilation system are connected to form a highly efficient smoke exhaust system. Even with the increased opening area affecting system performance, the coordinated operation of the platform and station hall ventilation systems ensures a downward wind speed of at least 1.5 m / s, effectively removing smoke, even in emergencies such as fires. The tunnel fan is installed within the main structure of the station hall for smoke exhaust from the platform structure. The monitoring device is installed within the main structure of the platform to monitor environmental parameters such as air quality and smoke concentration. If the smoke concentration exceeds the standard, the tunnel fan is immediately activated. This invention effectively solves the problem of the inability to effectively and promptly exhaust smoke in emergencies.

[0017] Other features and advantages of this invention will be set forth in the following description, and in part will be obvious from the description or may be learned by practicing the embodiments of this invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic plan view of the main structure of the platform according to the present invention;

[0021] Figure 3 This is a schematic plan view of the main structure of the station hall according to the present invention;

[0022] Marked in the image:

[0023] 1. Platform main structure; 2. Platform ventilation system; 3. Station hall main structure; 4. Passage structure; 5. Station hall ventilation system; 6. Monitoring device; 7. Tunnel fan; 11. Platform atrium structure; 21. Platform mezzanine ventilation duct; 22. Platform side ventilation opening; 23. Platform ventilation opening; 31. Station hall atrium structure; 41. Ladder structure; 42. Vertical ladder structure; 51. Station hall ventilation opening; 52. Station hall ventilation structure; 521. Station hall mezzanine ventilation duct; 522. Station hall vertical ventilation duct. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0025] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] like Figure 1 As shown, a smoke exhaust structure for a subway atrium includes: a platform ventilation system 2 installed at both ends of the main platform structure 1, with a monitoring device 6 installed between the two ends of the platform ventilation system 2; a concourse main structure 3, which is located on top of the main platform structure 1, and the concourse main structure 3 and the main platform structure 1 are connected by a passageway 4 to form a superimposed arrangement structure; a concourse ventilation system 5 installed at both ends of the main concourse structure 3, and the concourse ventilation system 5 and the platform ventilation system 2 are arranged on the same vertical axis; the air supply end of the concourse ventilation system 5 and the air inlet end of the platform ventilation system 2 are connected to form a smoke exhaust system, and the smoke exhaust end of the smoke exhaust system extends towards the middle of the main concourse structure 3; a tunnel fan 7 is installed between the wall of the concourse ventilation system 5 and the main concourse structure 3, and the tunnel fan 7 is electrically connected to the monitoring device 6; the air supply end of the tunnel fan 7 is connected to the air inlet end of the concourse ventilation system 5.

[0027] In this structure, the monitoring device 6 is used to monitor environmental parameters such as air quality and smoke concentration within the main structure 1 of the platform, and to control and adjust the tunnel fan 7 based on the monitoring data; smoke is centrally exhausted into the main structure 1 of the platform through the platform ventilation system 2 and the hall ventilation system 5. Even with the increased opening area affecting system performance, the coordinated operation of the platform ventilation system 2 and the hall ventilation system 5 ensures a downward wind speed of at least 1.5 m / s, effectively removing smoke, even in emergencies such as fires.

[0028] like Figure 2 As shown, the platform ventilation system 2 includes a platform mezzanine duct 21 and platform side vents 22. The platform mezzanine duct 21 is horizontally arranged on the top surface of one end of the main platform structure 1, and the platform side vents 22 are located on the top of the main platform structure 1. The air supply end of the platform mezzanine duct 21 is connected to the platform side vents 22. In this structure, the arrangement of the platform mezzanine duct 21 and the platform side vents 22 enables the rapid delivery of fresh air and the discharge of exhaust gas and smoke.

[0029] In this invention, the station hall ventilation system 5 includes a station hall air vent 51, which is located on the bottom surface of one end of the main station hall structure 3. The air supply end of the station hall air vent 51 and the air inlet end of the platform mezzanine air duct 21 are arranged on the same vertical axis and connected to form a first smoke exhaust system. The station hall air vent 51 serves as the air inlet of the first smoke exhaust system. Through the connection between the station hall air vent 51 and the platform mezzanine air duct 21, fresh air is delivered into the main station hall structure 1. The first smoke exhaust system is used to ensure the environmental safety of one end of the main station hall structure 1 and to meet specific ventilation and smoke exhaust requirements.

[0030] like Figure 3 As shown, the station hall ventilation system 5 includes a station hall ventilation structure 52, the cross-section of which is L-shaped, and one end of which is connected to the air supply end of the tunnel fan 7. The station hall ventilation structure 52 is used to guide the airflow direction, causing the air to flow along a specific path.

[0031] In this structure, the platform ventilation system 2 includes platform air vents 23, which are located at the top of the other end of the main platform structure 1. The air inlet of the platform air vents 23 is arranged on the same vertical axis as the other end of the concourse ventilation structure 52 and is connected to form a second smoke exhaust system. The second smoke exhaust system is used to ensure the ventilation and smoke exhaust safety of the other end of the main platform structure 1. The second smoke exhaust system and the first smoke exhaust system cooperate with each other to take into account the smoke exhaust needs of the public area of ​​the main platform structure 1 and ensure that the predetermined smoke exhaust standards are met.

[0032] To clarify the specific configuration of the station hall ventilation structure 52, the station hall ventilation structure 52 includes a station hall mezzanine air duct 521 and a station hall vertical air duct 522. One end of the station hall mezzanine air duct 521 is connected to the air supply end of the tunnel fan 7, the other end of the station hall mezzanine air duct 521 is connected to one end of the station hall vertical air duct 522, and the other end of the station hall vertical air duct 522 is connected to the air inlet end of the platform air vent 23.

[0033] To clarify the structure of the main platform structure 1, the main platform structure 1 has multiple platform atrium structures 11, and the main concourse structure 3 has multiple concourse atrium structures 31. Each platform atrium structure 11 is connected to the concourse atrium structure 31 through a passage structure 4 to form a superimposed arrangement structure.

[0034] In this invention, the passage structure 4 includes multiple ladder structures 41. One end of each ladder structure 41 is respectively located on the main platform structure 1 to form a platform entrance / exit, and the other end of each ladder structure 41 is respectively located on the main concourse structure 3 to form a concourse entrance / exit. Further, the passage structure 4 includes a vertical ladder structure 42. The bottom end of the vertical ladder structure 42 is located on the main platform structure 1, and the top end of the vertical ladder structure 42 is located on the main concourse structure 3. The entrances / exits of the vertical ladder structure 42 and the multiple ladder structures 41 are arranged longitudinally along the platform atrium structure 11 and the concourse atrium structure 31. The ladder structures 41 and the vertical ladder structures 42 provide passengers with passageways from the main platform structure 1 to the main concourse structure 3 or from the main concourse structure 3 to the main platform structure 1. In emergencies such as fires, the ladder structures 41 serve as evacuation routes to ensure the safe evacuation of passengers.

[0035] In this structure, the monitoring device 6 includes a first smoke detector and a second smoke detector. The first and second smoke detectors are respectively installed at the top of both ends of the platform atrium structure 11. The first and second smoke detectors are electrically connected to the tunnel ventilation fan 7. The first and second smoke detectors are used to monitor the smoke concentration in both ends of the main platform structure 1 in real time, promptly detect abnormal situations such as fires, and transmit the monitored smoke concentration signal to the tunnel ventilation fan 7, which then exhausts the smoke. The first and second smoke detectors and the tunnel ventilation fan 7 improve the response speed and ensure passenger safety. The above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A structure for smoke exhaust of a subway with a central court, characterized by, include: The main structure of the platform (1) is provided with platform ventilation systems (2) at both ends, and a monitoring device (6) is provided between the two platform ventilation systems (2); The main structure of the station hall (3) is located on the top of the main structure of the platform (1). The main structure of the station hall (3) and the main structure of the platform (1) are connected by a passage structure (4) to form a superimposed arrangement structure. The two ends of the main structure of the station hall (3) are respectively provided with a station hall ventilation system (5). The station hall ventilation system (5) and the platform ventilation system (2) are arranged on the same vertical axis. The air supply end of the station hall ventilation system (5) and the air inlet end of the platform ventilation system (2) are connected to form a smoke exhaust system. The smoke exhaust end of the smoke exhaust system extends to the middle of the main structure of the station hall (3). A tunnel fan (7) is provided between the ventilation system (5) and the wall of the main structure of the station hall (3). The tunnel fan (7) is electrically connected to the monitoring device (6). The air supply end of the tunnel fan (7) is connected to the air inlet end of the ventilation system (5).

2. The smoke exhaust structure for a central court type subway according to claim 1, wherein The platform ventilation system (2) includes a platform interlayer air duct (21) and a platform side air hole (22). The platform interlayer air duct (21) is arranged horizontally on the top surface of one end of the main platform structure (1). The platform side air hole (22) is opened on the top of the main platform structure (1). The air supply end of the platform interlayer air duct (21) is connected to the platform side air hole (22).

3. The smoke exhaust structure for a central court type subway according to claim 2, wherein The station hall ventilation system (5) includes a station hall air vent (51), which is located on the bottom surface of one end of the main structure (3) of the station hall. The air supply end of the station hall air vent (51) and the air inlet end of the platform interlayer air duct (21) are arranged on the same vertical axis and connected to form a first smoke exhaust system.

4. The smoke exhaust structure for a central court type subway according to claim 1, wherein The station hall ventilation system (5) includes a station hall ventilation structure (52), the cross-section of which is "L" shaped, and one end of which is connected to the air supply end of the tunnel fan (7).

5. The smoke exhaust structure for a central court type subway according to claim 4, wherein The platform ventilation system (2) includes a platform air vent (23), which is located at the top of the other end of the main platform structure (1). The air inlet of the platform air vent (23) is arranged on the same vertical axis as the other end of the station hall ventilation structure (52) and is connected to form a second smoke exhaust system.

6. The smoke exhaust structure for atrium-style subways according to claim 5, characterized in that, The station hall ventilation structure (52) includes a station hall mezzanine air duct (521) and a station hall vertical air duct (522). One end of the station hall mezzanine air duct (521) is connected to the air supply end of the tunnel fan (7), and the other end of the station hall mezzanine air duct (521) is connected to one end of the station hall vertical air duct (522). The other end of the station hall vertical air duct (522) is connected to the air inlet end of the platform air hole (23).

7. The smoke exhaust structure for a central court type subway according to claim 1, wherein The main structure of the platform (1) has multiple platform atrium structures (11), and the main structure of the station hall (3) has multiple station hall atrium structures (31). Each of the platform atrium structures (11) is connected to the station hall atrium structure (31) through a passage structure (4) to form a superimposed arrangement structure.

8. The smoke exhaust structure for a central court type subway according to claim 7, wherein The passage structure (4) includes multiple ladder structures (41), one end of each ladder structure (41) is arranged on the main structure of the platform (1) to form a platform entrance and exit, and the other end of each ladder structure (41) is arranged on the main structure of the station hall (3) to form a station hall entrance and exit.

9. The smoke exhaust structure for a central court type subway according to claim 8, wherein The passage structure (4) includes a vertical ladder structure (42), the bottom end of which is located on the main structure of the platform (1), and the top end of which is located on the main structure of the station hall (3). The entrances and exits at both ends of the vertical ladder structure (42) and the multiple climbing ladder structures (41) are arranged longitudinally along the atrium structure of the platform (11) and the atrium structure of the station hall (31).

10. The smoke exhaust structure for a central court type subway according to claim 7, wherein The monitoring device (6) includes a first smoke detector and a second smoke detector. The first smoke detector and the second smoke detector are respectively installed at the top of both ends of the platform atrium structure (11). The first smoke detector, the second smoke detector and the tunnel fan (7) are electrically connected.

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