CN114198128A - System and method for ventilating and discharging smoke of fire disaster in atrium type subway station - Google Patents

System and method for ventilating and discharging smoke of fire disaster in atrium type subway station Download PDF

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Publication number
CN114198128A
CN114198128A CN202111460978.2A CN202111460978A CN114198128A CN 114198128 A CN114198128 A CN 114198128A CN 202111460978 A CN202111460978 A CN 202111460978A CN 114198128 A CN114198128 A CN 114198128A
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smoke exhaust
air supply
air
smoke
platform
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CN202111460978.2A
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CN114198128B (en
Inventor
史聪灵
李建
刘国林
任飞
石杰红
钱小东
胥旋
何理
赵晨
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China Academy of Safety Science and Technology CASST
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China Academy of Safety Science and Technology CASST
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Priority to JP2022193575A priority patent/JP7381700B2/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/003—Ventilation of traffic tunnels
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/04—Air ducts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F3/00—Cooling or drying of air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Ventilation (AREA)
  • Escalators And Moving Walkways (AREA)

Abstract

The invention discloses a fire ventilation and smoke exhaust system and method for a zhongting type subway station, belonging to the technical field of station ventilation and smoke exhaust, comprising a station hall public area, a station platform public area, a zhongting, a smoke exhaust system, an air supply system and a heat exhaust system, wherein the station platform public area is positioned at the lower layer of the station hall public area, a staircase is arranged between the station platform public area and the station hall public area, an opening position of each staircase is provided with a downward air curtain, the zhongting penetrates through the middle parts of the station hall public area and the station platform public area, the zhongting and the zhongting at the station hall public area are provided with smoke blocking vertical walls, the station hall public area, the zhongting and the station public area are provided with the smoke exhaust system and the air supply system, the station hall public area and the zhongting share the smoke exhaust system and the air supply system, the station platform public area is provided with the heat exhaust system, the invention cancels a fireproof rolling curtain, reduces the number of linkage equipment during a fire disaster, and improves the system reliability, a set of smoke exhaust pipeline and an air supply pipeline are shared in the public areas of the atrium and the station hall, so that the requirements of fire ventilation and smoke exhaust are met, and the problem that too many air pipes are difficult to arrange is solved.

Description

System and method for ventilating and discharging smoke of fire disaster in atrium type subway station
Technical Field
The invention relates to the technical field of station ventilation and smoke exhaust, in particular to a system and a method for ventilation and smoke exhaust of a fire disaster in a courtyard type subway station.
Background
The patent publication No. CN111119972B in the prior art provides a ventilation and smoke exhaust system and a ventilation and smoke exhaust method for a station hall of a underground station, which comprises a smoke exhaust system in a public area and a smoke exhaust system in a tunnel, wherein the smoke exhaust system in the public area comprises a smoke exhaust fan in the public area and a first smoke exhaust channel for communicating the station hall with the smoke exhaust fan in the public area; the tunnel smoke exhaust system comprises a station tunnel smoke exhaust system and/or an interval tunnel smoke exhaust system which are communicated with the station hall; when the tunnel smoke exhaust system comprises a station tunnel smoke exhaust system, the station tunnel smoke exhaust system comprises a station tunnel heat exhauster and a second smoke exhaust channel for communicating the station hall with the station tunnel heat exhauster; when the tunnel smoke exhaust system comprises an interval tunnel smoke exhaust system, the interval tunnel smoke exhaust system comprises an interval tunnel fan and a third smoke exhaust channel communicated with the station hall and the interval tunnel fan. The ventilation and smoke exhaust system and method for the station hall of the underground station provided by the invention have the advantages that the smoke exhaust effect is obviously improved, the construction and modification cost is low, and the safety level is effectively improved.
According to the subway design specification, the building area of each smoke-proof subarea in the public area of the station hall and the platform is not more than 2000m2, and the sum of the areas of the station hall and the platform of a common station is generally more than 2000m2 in consideration of the actual situation, so that the station hall and the platform are divided into different smoke-proof subareas, and the method comprises the following steps: the station hall and the station platform are separated by the floor slab, although the staircase exists between the station hall and the station platform, the staircase position is provided with the smoke blocking vertical wall, and smoke is discharged through the station platform, so that the staircase mouth has a certain flow velocity (not less than 1.5m/s), and smoke cannot spread to the station hall during the fire of the station platform.
However, in the case of an atrium type station, since the opening between the station hall and the station platform is too large due to the large opening of the atrium, the flow rate from the station hall to the station platform is too low during a fire at the station platform, and the upward spread of smoke cannot be effectively suppressed.
The common method is as follows: the middle court is used as an independent smoke-proof subarea, an independent smoke discharging system is arranged, a fireproof roller shutter is arranged at the joint of the middle court and the station hall, and the fireproof roller shutter is linked to fall to the ground during a fire disaster, so that the middle court and the station hall are completely isolated. This way can solve the problem of preventing discharging fume in the zhongting station to a certain extent, but considers that the zhongting area is great, and the zhongting periphery sets up round fire prevention and rolls up the curtain, and need set up solitary system of discharging fume, and the cost is higher. In addition, during a platform fire disaster, all fire-proof rolling curtains around an atrium need to be linked at one time, the reliability of the system is obviously reduced, and once the fire-proof rolling curtains cannot be linked, the opening area of the platform and the station hall exceeds the standard, so that the downward flow velocity of the opening between the station hall and the platform is low, the smoke of the platform cannot be effectively inhibited from spreading to the station hall, and further casualties are caused.
Disclosure of Invention
The embodiment of the invention provides a fire ventilation and smoke exhaust system and method for a courtyard type subway station, and aims to solve the technical problems that in the prior art, the cost of a smoke exhaust system is too high, and the reliability of the smoke exhaust system is reduced due to too many linkage devices.
The embodiment of the invention adopts the following technical scheme: including station hall public area, platform public area, atrium, system, air supply system and the heat extraction system of discharging fume, the platform public area is located the lower floor in station hall public area, sets up the building staircase between station public area and the station hall public area, and every building staircase open position sets up the air curtain of downward direction, atrium runs through to set up at station hall public area and platform public area middle part, station hall public area locates around atrium and the platform public area department atrium that locates all to be equipped with the round and keep off the cigarette wall that hangs down, station hall public area, atrium and platform public area install the system of discharging fume and the system of sending fume, station hall public area and atrium share the branch road of system of discharging fume and the system of sending fume, and the heat extraction system is installed to the platform public area.
Further, the smoke exhaust system comprises a station hall A end smoke exhaust pipeline and a station hall B end smoke exhaust pipeline, wherein the station hall A end smoke exhaust pipeline and the station hall B end smoke exhaust pipeline are respectively arranged at two ends of a station hall public area;
one end of a smoke exhaust pipeline at the A end of the station hall is connected with a first smoke exhaust fan, and the other end of the smoke exhaust pipeline extends into the atrium;
one end of a smoke exhaust pipeline at the B end of the station hall is connected with a second smoke exhaust fan, and the other end of the smoke exhaust pipeline extends into the atrium;
the station hall A-end smoke exhaust pipeline is provided with a plurality of station hall A-end smoke exhaust ports and an atrium A-end smoke exhaust port;
the station hall B-end smoke exhaust pipeline is provided with a plurality of station hall B-end smoke exhaust ports and an atrium B-end smoke exhaust port;
wherein, the smoke outlet at the A end of the atrium and the smoke outlet at the B end of the atrium are positioned in the smoke blocking vertical wall, and the smoke outlet at the A end of the standing hall and the smoke outlet at the B end of the standing hall are positioned outside the smoke blocking vertical wall;
and smoke outlet electric air valves are respectively arranged in the station hall A end smoke outlet, the atrium A end smoke outlet, the station hall B end smoke outlet and the atrium B end smoke outlet, so that the smoke outlets arranged at the same position can be independently controlled to be opened or closed by the smoke outlet electric air valves.
Furthermore, the other end of the first smoke exhaust fan is sequentially connected with the first smoke exhaust air valve and the first smoke exhaust air pavilion, the other end of the second smoke exhaust fan is sequentially connected with the second smoke exhaust air valve and the second smoke exhaust air pavilion, a third smoke exhaust air valve is arranged between the smoke exhaust pipeline at the A end of the station hall and the first smoke exhaust fan, and a fourth smoke exhaust air valve is arranged between the smoke exhaust pipeline at the B end of the station hall and the second smoke exhaust fan.
Furthermore, the smoke exhaust system also comprises a station A end smoke exhaust pipeline, a station B end smoke exhaust pipeline, a fifth smoke exhaust air valve and a sixth smoke exhaust air valve,
the platform A end smoke exhaust pipeline and the platform B end smoke exhaust pipeline are arranged at two ends of a platform public area;
one end of a smoke exhaust pipeline at the A end of the platform is connected with a first smoke exhaust fan, and the other end of the smoke exhaust pipeline extends out of the atrium;
one end of a smoke exhaust pipeline at the B end of the platform is connected with a second smoke exhaust fan, and the other end of the smoke exhaust pipeline extends out of the atrium;
a plurality of platform A-end smoke outlets are arranged on the platform A-end smoke exhaust pipeline at equal intervals, a plurality of platform B-end smoke outlets are arranged on the platform B-end smoke exhaust pipeline at equal intervals, and the platform A-end smoke outlets and the platform B-end smoke outlets are not provided with smoke exhaust electric air valves, so that the platform A-end smoke outlets and the platform B-end smoke outlets are normally open, and the platform A-end smoke outlets and the platform B-end smoke outlets are positioned outside the smoke blocking vertical wall;
and a fifth smoke exhaust air valve is arranged between the smoke exhaust pipeline at the A end of the platform and the first smoke exhaust fan, and a sixth smoke exhaust air valve is arranged between the smoke exhaust pipeline at the B end of the platform and the second smoke exhaust fan.
Further, the air supply system comprises an air supply pipeline at the A end of the station hall and an air supply pipeline at the B end of the station hall,
the station hall A end air supply pipeline and the station hall B end air supply pipeline are arranged at two ends of a station hall public area,
one end of an air supply pipeline at the A end of the station hall is connected with a first air supply fan, and the other end of the air supply pipeline extends into the atrium;
one end of an air supply pipeline at the B end of the station hall is connected with a second air supply fan, and the other end of the air supply pipeline extends into the atrium;
a plurality of station hall A end air supply outlets and a plurality of middle court A end air supply outlets are arranged on the station hall A end air supply pipeline at equal intervals; a plurality of station hall B-end air supply outlets and a plurality of middle court B-end air supply outlets are arranged on the station hall B-end air supply pipeline at equal intervals;
and air supply outlet electric air valves are arranged on the air supply outlet at the A end of each station hall, the air supply outlet at the A end of the atrium, the air supply outlet at the B end of each station hall and the air supply outlet at the B end of the atrium, so that the air supply outlets arranged at the same position can be independently controlled to be opened or closed.
Furthermore, the other end of the first air supply fan is sequentially connected with a first air supply air valve and a first air supply air pavilion, the other end of the second air supply fan is sequentially connected with a second air supply air valve and a second air supply air pavilion, a third air supply air valve is arranged between the station hall A-end air supply pipeline and the first air supply fan, and a fourth air supply air valve is arranged between the station hall B-end air supply pipeline and the second air supply fan.
Furthermore, the air supply system also comprises an air supply pipeline at the A end of the platform, an air supply pipeline at the B end of the platform, a fifth air supply air valve and a sixth air supply air valve,
the air supply pipeline at the platform A end and the air supply pipeline at the platform B end are arranged at the two ends of the platform public area,
one end of the air supply pipeline at the A end of the platform is connected with a first air supply fan, and the other end of the air supply pipeline extends out of the atrium;
one end of the air supply pipeline at the B end of the platform is connected with a second air supply fan, and the other end of the air supply pipeline extends out of the atrium;
the air supply pipeline at the end A of the platform is provided with a plurality of air supply outlets at the end A of the platform at equal intervals, the air supply pipeline at the end B of the platform is provided with a plurality of air supply outlets at the end B of the platform at equal intervals, and the air supply outlets at the end A of the platform and the air supply outlets at the end B of the platform are positioned outside the smoke blocking vertical wall;
and a fifth air supply air valve is arranged between the air supply pipeline at the A end of the platform and the first air supply fan, and a sixth air supply air valve is arranged between the air supply pipeline at the B end of the platform and the second air supply fan.
Furthermore, the heat removal system comprises a platform A end heat removal system smoke exhaust pipeline and a platform B end heat removal system smoke exhaust pipeline, the platform A end heat removal system smoke exhaust pipeline and the platform B end heat removal system smoke exhaust pipeline are arranged at two ends of a platform public area,
one end of a smoke exhaust pipeline of the heat exhaust system at the A end of the platform is connected with a first air exhaust fan, and the other end of the smoke exhaust pipeline extends out of the atrium;
one end of a smoke exhaust pipeline of the heat exhaust system at the B end of the platform is connected with the second heat exhaust fan, and the other end of the smoke exhaust pipeline extends out of the atrium;
the platform A end heat extraction system exhaust pipe is provided with a first exhaust port of the heat extraction system, the platform B end heat extraction system exhaust pipe is provided with a second exhaust port of the heat extraction system, and the first exhaust port of the heat extraction system and the second exhaust port of the heat extraction system are positioned outside the smoke blocking vertical wall;
the other end of the first heat exhausting fan is sequentially connected with the first heat exhausting fan valve and the first heat exhausting fan pavilion, the other end of the second heat exhausting fan is sequentially connected with the second heat exhausting fan valve and the second heat exhausting fan pavilion, a third heat exhausting fan valve is arranged between the smoke exhaust pipeline of the platform A-end heat exhausting system and the first heat exhausting fan, and a fourth heat exhausting fan valve is arranged between the smoke exhaust pipeline of the platform B-end heat exhausting system and the second heat exhausting fan.
Further, a first silencer is arranged between the third smoke exhaust air valve and the first smoke exhaust air fan and between the fifth smoke exhaust air valve and the first smoke exhaust air fan;
second silencers are arranged 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;
third silencers are arranged between the third air supply air valve and the first air supply fan and between the fifth air supply air valve and the first air supply fan;
fourth silencers are arranged between the fourth air supply air valve and the second air supply fan and between the sixth air supply air valve and the second air supply fan;
a fifth silencer is arranged between the third hot air exhaust valve and the first hot air exhaust fan, and a sixth silencer is arranged between the fourth hot air exhaust valve and the second hot air exhaust fan.
The method of the fire ventilation and smoke exhaust system of the atrium type subway station comprises the following steps:
when the platform public area is in fire:
s1: when the station public area catches fire, the first smoke exhaust fan and the second smoke exhaust fan are started, 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 started, the third smoke exhaust air valve and the fourth smoke exhaust air valve are closed, the smoke exhaust port electric air valve at the smoke exhaust port at the station hall A end, the smoke exhaust port electric air valve at the smoke exhaust port at the station hall B end, the smoke exhaust port electric air valve at the smoke exhaust port at the atrium A end and the smoke exhaust port electric air valve at the smoke exhaust port at the atrium B end are kept in an original state, and therefore the first smoke exhaust fan and the second smoke exhaust fan can exhaust smoke for the station public area.
S2: and opening the first heat exhausting fan and the second heat exhausting fan, opening the first heat exhausting valve, the second heat exhausting valve, the third heat exhausting valve and the fourth heat exhausting valve, and exhausting smoke to the platform public area through the first smoke exhaust port of the heat exhausting system and the second smoke exhaust port of the heat exhausting system.
S3: and opening a first air supply fan, a second air supply fan, a first air supply air valve, a second air supply air valve, a third air supply air valve and a fourth air supply air valve, closing a fifth air supply air valve and a sixth air supply air valve, opening an air supply outlet electric air valve at an air supply port at the station hall A end, an air supply outlet electric air valve at an air supply port at the station hall B end, an air supply outlet electric air valve at an air supply port at the atrium A end and an air supply outlet electric air valve at an air supply port at the atrium B end, and enabling the first air supply fan and the second air supply fan to supply air to the station hall public area and the atrium.
S4: and opening an air curtain of the staircase to prevent the smoke in the public area of the platform from spreading to the public area of the station and the hall through the staircase opening.
When station room public area conflagration:
s1: when a fire occurs in the station hall public area, the first smoke exhaust fan and the second smoke exhaust fan are started, 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 are started, the fifth smoke exhaust air valve and the sixth smoke exhaust air valve are closed, the smoke exhaust port electric air valve at the smoke exhaust port at the station hall A end and the smoke exhaust port electric air valve at the smoke exhaust port at the station hall B end are started, the smoke exhaust port electric air valve at the smoke exhaust port at the atrium A end and the smoke exhaust port electric air valve at the smoke exhaust port at the atrium B end are closed, and the first smoke exhaust fan and the second smoke exhaust fan only exhaust smoke in the non-atrium area of the station hall public area.
S2: and closing the first heat exhausting fan and the second heat exhausting fan, and closing the first heat exhausting valve, the second heat exhausting valve, the third heat exhausting valve and the fourth heat exhausting valve.
S3: opening a first air supply fan and a second air supply fan, opening a first air supply air valve, a second air supply air valve, a third air supply air valve and a fourth air supply air valve, closing a fifth air supply air valve and a sixth air supply air valve, closing an air supply outlet electric air valve at an air supply port at the station hall A end and an air supply outlet electric air valve at an air supply port at the station hall B end, opening an air supply outlet electric air valve at an air supply port at the atrium A end and an air supply outlet electric air valve at an air supply port at the atrium B end, and enabling the first air supply fan and the second air supply fan to supply air to the atrium.
S4: and then the air curtain of the staircase is opened to prevent the smoke of the station hall from spreading to the public area of the station through the staircase opening.
During an atrium fire disaster:
s1: when a fire disaster occurs in a atrium, a first smoke exhaust fan and a second smoke exhaust fan are started, a first smoke exhaust air valve, a second smoke exhaust air valve, a third smoke exhaust air valve and a fourth smoke exhaust air valve are started, a fifth smoke exhaust air valve and a sixth smoke exhaust air valve are closed, an electric air valve of a smoke outlet at a smoke outlet of an A end of a station hall and an electric air valve of a smoke outlet at a smoke outlet of a B end of the station hall are closed, an electric air valve of a smoke outlet at a smoke outlet of an atrium A end and an electric air valve of a smoke outlet at a smoke outlet of an atrium B end are started, and the first smoke exhaust fan and the second smoke exhaust fan are started to exhaust smoke only in the atrium area of a public area of the station hall.
S2: and closing the first heat exhausting fan and the second heat exhausting fan, and closing the first heat exhausting valve, the second heat exhausting valve, the third heat exhausting valve and the fourth heat exhausting valve.
S3: opening a first air supply fan and a second air supply fan, opening a first air supply air valve, a second air supply air valve, a third air supply air valve and a fourth air supply air valve, closing a fifth air supply air valve and a sixth air supply air valve, opening an air supply outlet electric air valve at an air supply port at the station hall A end and an air supply outlet electric air valve at an air supply port at the station hall B end, closing an air supply outlet electric air valve at an air supply port at the atrium A end and an air supply outlet electric air valve at an air supply port at the atrium B end, and enabling the first air supply fan and the second air supply fan to supply air to non-atrium areas of a station hall public area.
The embodiment of the invention adopts at least one technical scheme which can achieve the following beneficial effects:
the invention provides a fire ventilation and smoke exhaust system and a fire ventilation and smoke exhaust method suitable for a courtyard type station, wherein a fire-proof roller shutter surrounding a courtyard in a station hall public area is omitted, the number of linkage equipment during a fire is reduced, and the reliability of the system is improved; and the station hall ventilation and smoke exhaust system and the atrium ventilation and smoke exhaust system are combined, and independent air valves are arranged at air supply ports and smoke exhaust ports of the station hall and the atrium, so that the opening and closing of each air supply port and each smoke exhaust port are independently controlled, the fire disasters at different positions of the station hall, the station platform, the atrium and the like are ensured, and the smoke prevention and smoke exhaust requirements can be met.
And secondly, a set of smoke exhaust pipeline and an air supply pipeline are shared by the atrium and the station hall public areas, and the ventilation and smoke exhaust system is controlled to exhaust smoke/supply air to the atrium area and the non-atrium area of the station hall public area by controlling the opening and closing of air valves of a smoke exhaust port and an air supply port. The scheme meets the requirements of fire ventilation and smoke exhaust, reduces the investment of the fan and the air pipe, and solves the problem that the air pipe is too much and is difficult to arrange reasonably.
And thirdly, the air curtain is arranged at the staircase entrance of the building, so that the smoke is prevented from spreading from the station to the station hall or from the station hall to the station.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a ventilation and smoke exhaust system for a station hall, a station platform and an atrium in an embodiment of the present invention;
fig. 2 is a schematic layout of ventilation and smoke exhaust system for station halls, station halls and atrium in an embodiment of the present invention;
fig. 3 is a schematic view of the arrangement of the escalator and the air curtain in the embodiment of the invention.
Reference numerals
Station hall public area 1, station hall public area 2, atrium 3, first smoke exhaust air booth 401, second smoke exhaust air booth 402, first smoke exhaust air valve 403, second smoke exhaust air valve 404, first smoke exhaust fan 405, second smoke exhaust fan 406, first silencer 407, second silencer 408, third smoke exhaust air valve 409, fourth smoke exhaust air valve 410, fifth smoke exhaust air valve 411, sixth smoke exhaust air valve 412, station hall A end smoke outlet 413, station hall B end smoke outlet 414, station hall A end smoke outlet 415, station hall B end smoke outlet 416, atrium A end smoke outlet 417, atrium B end smoke outlet 418, station hall A end smoke outlet 419, station hall B end smoke outlet 420, station hall A end smoke outlet 421, station hall B end smoke outlet 422, first air supply air booth 501, second air supply air booth 502, first air supply air valve 503, second air supply air valve 504, first air supply fan 505, second air supply fan 506, third sound eliminator 507, station hall A end sound eliminator, A fourth muffler 508, a third air supply valve 509, a fourth air supply valve 510, a fifth air supply valve 511, a sixth air supply valve 512, a station hall a end air supply outlet 513, a station hall B end air supply outlet 514, a station hall a end air supply outlet 515, a station hall B end air supply outlet 516, a atrium a end air supply outlet 517, an atrium B end air supply outlet 518, a station hall a end air supply pipeline 519, a station hall B end air supply pipeline 520, a station hall a end air supply pipeline 521, a station hall B end air supply pipeline 522, a first hot air exhaust booth 601, a second hot air exhaust booth 602, a first hot air exhaust valve 603, a second hot air exhaust valve 604, a first hot air exhaust fan 605, a second hot air exhaust fan 606, a fifth muffler 607, a sixth muffler 608, a third hot air exhaust valve 609, a fourth hot air exhaust valve 610, a first hot air exhaust outlet 611 of a heat exhaust system, a second heat exhaust outlet 612, a station a end system exhaust pipeline 613, a station B end system exhaust pipeline 614, a system exhaust pipeline, Staircase 7, air curtain 71, smoke barrier wall 8.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
The embodiment of the invention provides a fire ventilation and smoke exhaust system for an atrium type subway station, which comprises a station hall public area 1, a platform public area 2, an atrium 3, a smoke exhaust system 4, an air supply system 5 and a heat exhaust system 6, the platform public area 2 is positioned at the lower layer of the station hall public area 1, a stair 7 is arranged between the platform public area 2 and the station hall public area 1, an air curtain 71 which is downward is arranged at the opening position of each stair 7, the atrium 3 is arranged in the middle of the station hall public area 1 and the platform public area 2 in a penetrating way, a circle of smoke blocking vertical wall 8 is arranged around the atrium 3 at the station hall public area 1 and the atrium 3 at the platform public area 2, the station hall public area 1, the atrium 3 and the platform public area 2 are provided with a smoke exhaust system 4 and an air supply system 5, the station hall public area 1 and the atrium 3 share branches of the smoke exhaust system 4 and the air supply system 5, and the platform public area 2 is provided with a heat exhaust system 6.
Preferably, the smoke exhaust system 4 comprises a station hall A end smoke exhaust pipeline 419 and a station hall B end smoke exhaust pipeline 420, wherein the station hall A end smoke exhaust pipeline 419 and the station hall B end smoke exhaust pipeline 420 are respectively arranged at two ends of the station hall public area 1;
one end of a smoke exhaust pipeline 419 at the station hall A end is connected with a first smoke exhaust fan 405, and the other end of the smoke exhaust pipeline extends into an atrium 3;
one end of the station hall B end smoke exhaust pipeline 420 is connected with the second smoke exhaust fan 406, and the other end extends into the atrium 3;
the station hall A end smoke exhaust pipeline 419 is provided with a plurality of station hall A end smoke exhaust ports 413 and a station hall A end smoke exhaust port 417;
the station hall B end smoke exhaust pipeline 420 is provided with a plurality of station hall B end smoke exhaust ports 414 and a station hall B end smoke exhaust port 418;
wherein, the smoke outlet 417 and 418 at the A end and B end of the atrium are positioned in the smoke barrier vertical wall 8, and the smoke outlet 413 and 414 at the A end and B end of the standing hall are positioned outside the smoke barrier vertical wall 8;
smoke outlet electric air valves are arranged in each station hall A end smoke outlet 413, the atrium A end smoke outlet 417, the station hall B end smoke outlet 414 and the atrium B end smoke outlet 418, so that the smoke outlets arranged at the same position can be independently controlled to be opened or closed by the smoke outlet electric air valve.
Preferably, the other end of the first smoke exhaust fan 405 is sequentially connected with the first smoke exhaust air valve 403 and the first smoke exhaust booth 401, the other end of the second smoke exhaust fan 406 is sequentially connected with the second smoke exhaust air valve 404 and the second smoke exhaust booth 402, a third smoke exhaust air valve 409 is arranged between the station hall a end smoke exhaust pipeline 419 and the first smoke exhaust fan 405, and a fourth smoke exhaust air valve 410 is arranged between the station hall B end smoke exhaust pipeline 420 and the second smoke exhaust fan 406.
Preferably, the smoke exhaust system 4 further comprises a station a end smoke exhaust pipe 421, a station B end smoke exhaust pipe 422, a fifth smoke exhaust air valve 411 and a sixth smoke exhaust air valve 412,
the station A end smoke exhaust pipeline 421 and the station B end smoke exhaust pipeline 422 are arranged at two ends of the station public area 2;
one end of a smoke exhaust pipeline 421 at the A end of the platform is connected with a first smoke exhaust fan 405, and the other end of the smoke exhaust pipeline extends out of the atrium 3;
one end of the smoke exhaust pipeline 422 at the B end of the platform is connected with the second smoke exhaust fan 406, and the other end of the smoke exhaust pipeline extends out of the atrium 3;
the platform A end smoke exhaust pipeline 421 is provided with a plurality of platform A end smoke exhaust ports 415 at equal intervals, the platform B end smoke exhaust pipeline 422 is provided with a plurality of platform B end smoke exhaust ports 416 at equal intervals, and the platform A end smoke exhaust ports 415 and the platform B end smoke exhaust ports 416 are not provided with smoke exhaust electric air valves, so that the platform A end smoke exhaust ports 415 and the platform B end smoke exhaust ports 416 are normally open, and the platform A end smoke exhaust ports 415 and the platform B end smoke exhaust ports 416 are positioned outside the smoke blocking vertical wall 8;
a fifth smoke exhaust air valve 411 is arranged between the smoke exhaust pipeline 421 at the platform a end and the first smoke exhaust fan 405, and a sixth smoke exhaust air valve 412 is arranged between the smoke exhaust pipeline 422 at the platform B end and the second smoke exhaust fan 406.
Preferably, the air supply system 5 comprises a station hall a end air supply duct 519, a station hall B end air supply duct 520,
the station hall a end air supply pipeline 519 and the station hall B end air supply pipeline 520 are arranged at two ends of the station hall public area 1,
one end of an air supply pipeline 519 at the station hall A end is connected with a first air supply fan 505, and the other end extends into the atrium 3;
one end of the station hall B end air supply pipeline 520 is connected with the second air supply fan 506, and the other end of the station hall B end air supply pipeline extends into the atrium 3;
a plurality of station hall A end air supply outlets 513 and a plurality of court A end air supply outlets 517 are arranged on the station hall A end air supply pipeline 519 at equal intervals; a plurality of station hall B end air supply outlets 514 and a plurality of station hall B end air supply outlets 518 are arranged on the station hall B end air supply pipeline 520 at equal intervals;
and each station hall A end air supply outlet 513, each atrium A end air supply outlet 517, each station hall B end air supply outlet 514 and each atrium B end air supply outlet 518 are provided with air supply outlet electric air valves, so that the air supply outlets arranged at the same position can be independently controlled to be opened or closed by the air supply outlet electric air valves.
Preferably, the other end of the first air supply blower 505 is connected to a first air supply air valve 503 and a first air supply booth 501 in sequence, the other end of the second air supply blower 506 is connected to a second air supply air valve 504 and a second air supply booth 502 in sequence, a third air supply air valve 509 is arranged between the station hall a end air supply duct 519 and the first air supply blower 505, and a fourth air supply air valve 510 is arranged between the station hall B end air supply duct 520 and the second air supply blower 506.
Preferably, the air supply system 5 further includes a station a end air supply duct 521, a station B end air supply duct 522, a fifth air supply air valve 511 and a sixth air supply air valve 512,
the station A end air supply pipeline 521 and the station B end air supply pipeline 522 are arranged at two ends of the station public area 2,
one end of the air supply pipeline 521 at the platform A end is connected with a first air supply fan 505, and the other end extends out of the atrium 3;
one end of the air supply pipeline 522 at the platform end B is connected with the second air supply fan 506, and the other end extends out of the atrium 3;
the platform A end air supply pipeline 521 is provided with a plurality of platform A end air supply outlets 515 at equal intervals, the platform B end air supply pipeline 522 is provided with a plurality of platform B end air supply outlets 516 at equal intervals, and the platform A end air supply outlets 515 and the platform B end air supply outlets 516 are positioned outside the smoke blocking vertical wall 8;
a fifth air supply valve 511 is provided between the platform a end air supply duct 521 and the first air supply fan 505, and a sixth air supply valve 512 is provided between the platform B end air supply duct 522 and the second air supply fan 506.
Preferably, the heat removal system 6 includes a platform a end heat removal system smoke exhaust duct 613 and a platform B end heat removal system smoke exhaust duct 614, the platform a end heat removal system smoke exhaust duct 613 and the platform B end heat removal system smoke exhaust duct 614 are disposed at two ends of the platform public area 2,
one end of the smoke exhaust duct 613 of the heat exhaust system at the end a of the platform is connected with the first air exhaust fan 605, and the other end extends out of the atrium 3;
one end of the smoke exhaust pipeline 614 of the heat exhaust system at the B end of the platform is connected to the second heat exhausting fan 606, and the other end extends out of the atrium 3;
a first exhaust port 611 of the heat extraction system is arranged on the exhaust pipe 613 of the platform A end heat extraction system, a second exhaust port 612 of the heat extraction system is arranged on the exhaust pipe 614 of the platform B end heat extraction system, and the first exhaust port 611 of the heat extraction system and the second exhaust port 612 of the heat extraction system are positioned outside the smoke blocking vertical wall 8;
the other end of the first heat exhausting fan 605 is connected with the first heat exhausting valve 603 and the first heat exhausting booth 601 in sequence, the other end of the second heat exhausting fan 606 is connected with the second heat exhausting valve 604 and the second heat exhausting booth 602 in sequence, a third heat exhausting valve 609 is arranged between the smoke exhaust pipe 613 of the platform a end heat exhausting system and the first heat exhausting fan 605, and a fourth heat exhausting valve 610 is arranged between the smoke exhaust pipe 614 of the platform B end heat exhausting system and the second heat exhausting fan 606.
Preferably, a first muffler 407 is disposed between the third exhaust air valve 409 and the first exhaust air blower 405 and between the fifth exhaust air valve 411 and the first exhaust air blower 405;
a second silencer 408 is arranged 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;
third mufflers 507 are provided between the third blast air valve 509 and the first blast air blower 505 and between the fifth blast air valve 511 and the first blast air blower 505;
fourth mufflers 508 are provided between the fourth air supply valve 510 and the second air supply fan 506 and between the sixth air supply valve 512 and the second air supply fan 506;
a fifth muffler 607 is arranged between the third warm air exhaust valve 609 and the first warm air exhaust blower 605, and a sixth muffler 608 is arranged between the fourth warm air exhaust valve 610 and the second warm air exhaust blower 606.
The heat removal system 6 is conventionally used to remove heat generated during the stop of the train at the station, and to assist in smoke removal in case of fire.
The method of the fire ventilation and smoke exhaust system of the atrium type subway station comprises the following steps:
and in case of fire in the platform public area 2:
s1: when the platform public area 2 is on fire, the first smoke exhaust fan 405 and the second smoke exhaust fan 406 are opened, the first smoke exhaust air valve 403, the second smoke exhaust air valve 404, the fifth smoke exhaust air valve 411 and the sixth smoke exhaust air valve 412 are opened, the third smoke exhaust air valve 409 and the fourth smoke exhaust air valve 410 are closed, and the smoke exhaust port electric air valve at the smoke exhaust port 413 at the station hall A end, the smoke exhaust port electric air valve at the smoke exhaust port 414 at the station hall B end, the smoke exhaust port electric air valve at the smoke exhaust port 417 at the atrium A end and the smoke exhaust port electric air valve at the smoke exhaust port 418 at the atrium B end are kept in the original state, so that the first smoke exhaust fan 405 and the second smoke exhaust fan 406 both exhaust smoke to the platform public area 2.
S2: the first warm air exhaust machine 605 and the second warm air exhaust machine 606 are turned on, the first warm air exhaust valve 603, the second warm air exhaust valve 604, the third warm air exhaust valve 609 and the fourth warm air exhaust valve 610 are turned on, and smoke is exhausted to the platform public area 2 through the first smoke exhaust port 611 of the heat exhaust system and the second smoke exhaust port 612 of the heat exhaust system.
S3: a first air supply fan 505 and a second air supply fan 506 are opened, a first air supply air valve 503, a second air supply air valve 504, a third air supply air valve 509 and a fourth air supply air valve 510 are closed, a fifth air supply air valve 511 and a sixth air supply air valve 512 are closed, an air supply outlet electric air valve at an air supply outlet 513 at the station hall A end, an air supply outlet electric air valve at an air supply outlet 514 at the station hall B end, an air supply outlet electric air valve at an air supply outlet 517 at the atrium A end and an air supply outlet electric air valve at an air supply outlet 518 at the atrium B end are opened, and the first air supply fan 505 and the second air supply fan 506 supply air to the station hall public area 1 and the atrium 3.
S4: the air curtain 71 of the staircase 7 is opened to prevent the smoke in the platform public area 2 from spreading to the station and hall public area 1 through the opening of the staircase 7.
When station hall public area 1 conflagration:
s1: when a station hall public area 1 is on fire, a first smoke exhaust fan 405 and a second smoke exhaust fan 406 are started, a first smoke exhaust air valve 403, a second smoke exhaust air valve 404, a third smoke exhaust air valve 409 and a fourth smoke exhaust air valve 410 are started, a fifth smoke exhaust air valve 411 and a sixth smoke exhaust air valve 412 are closed, a smoke exhaust port electric air valve at a station hall A end smoke exhaust port 413 and a smoke exhaust port electric air valve at a station hall B end smoke exhaust port 414 are started, a smoke exhaust port electric air valve at a atrium A end smoke exhaust port 417 and a smoke exhaust port electric air valve at an atrium B end smoke exhaust port 418 are closed, and the first smoke exhaust fan 405 and the second smoke exhaust fan 406 only exhaust smoke to non-atrium 3 areas of the station hall public area 1.
S2: the first and second heat exhausting fans 605 and 606 are turned off, and the first, second, third and fourth heat exhausting valves 603 and 604 and 609 and 610 are turned off.
S3: opening a first air supply fan 505 and a second air supply fan 506, opening a first air supply air valve 503, a second air supply air valve 504, a third air supply air valve 509 and a fourth air supply air valve 510, closing a fifth air supply air valve 511 and a sixth air supply air valve 512, closing an air supply outlet electric air valve at an air supply outlet 513 at the station hall A end, closing an air supply outlet electric air valve at an air supply outlet 514 at the station hall B end, opening an air supply outlet electric air valve at an air supply outlet 517 at the atrium A end and an air supply outlet electric air valve at an air supply outlet 518 at the atrium B end, and enabling the first air supply fan 505 and the second air supply fan 506 to supply air to atrium 3.
S4: then the air curtain 71 of the staircase 7 is opened to prevent the smoke from spreading to the platform public area 2 through the staircase 7.
When the atrium 3 is in fire:
s1: when a fire breaks out in the atrium 3, the first smoke exhaust fan 405 and the second smoke exhaust fan 406 are started, the first smoke exhaust air valve 403, the second smoke exhaust air valve 404, the third smoke exhaust air valve 409 and the fourth smoke exhaust air valve 410 are started, the fifth smoke exhaust air valve 411 and the sixth smoke exhaust air valve 412 are closed, the smoke exhaust port electric air valve at the smoke exhaust port 413 of the station hall A end and the smoke exhaust port electric air valve at the smoke exhaust port 414 of the station hall B end are closed, the smoke exhaust port electric air valve at the smoke exhaust port 417 of the atrium A end and the smoke exhaust port electric air valve at the smoke exhaust port 418 of the atrium B end are opened, and the first smoke exhaust fan 405 and the second smoke exhaust fan 406 are started to exhaust smoke only in the atrium 3 area of the station hall public area 1.
S2: the first and second heat exhausting fans 605 and 606 are turned off, and the first, second, third and fourth heat exhausting valves 603 and 604 and 609 and 610 are turned off.
S3: opening a first air supply fan 505 and a second air supply fan 506, opening a first air supply air valve 503, a second air supply air valve 504, a third air supply air valve 509 and a fourth air supply air valve 510, closing a fifth air supply air valve 511 and a sixth air supply air valve 512, opening an air supply outlet electric air valve at an air supply outlet 513 at the station hall A end, opening an air supply outlet electric air valve at an air supply outlet 514 at the station hall B end, closing an air supply outlet electric air valve at an air supply outlet 517 at the atrium A end and an air supply outlet electric air valve at an air supply outlet 518 at the atrium B end, and enabling the first air supply fan 505 and the second air supply fan 506 to supply air to the non-atrium 3 area of the station hall public area 1.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. An atrium type subway station fire ventilation and smoke exhaust system is characterized by comprising a station hall public area (1), a platform public area (2), an atrium (3), a smoke exhaust system (4), an air supply system (5) and a heat exhaust system (6), wherein the platform public area (2) is positioned at the lower layer of the station hall public area (1), a stair (7) is arranged between the platform public area (2) and the station hall public area (1), an air curtain (71) in the downward direction is arranged at the opening position of each stair (7), the atrium (3) is arranged in the middle of the station hall public area (1) and the platform public area (2) in a penetrating way, a circle of smoke blocking vertical wall (8) is arranged around the atrium (3) at the station hall public area (1) and the atrium (3) at the platform public area (2), the smoke exhaust system (4) and the air supply system (5) are arranged in the station hall public area (1), the atrium (3) and the platform public area (2), the station hall public area (1) and the atrium (3) share branches of the smoke exhaust system (4) and the air supply system (5), and the platform public area (2) is provided with the heat exhaust system (6).
2. The atrium type subway station fire ventilation and smoke exhaust system as claimed in claim 1, wherein said smoke exhaust system (4) comprises a station hall A end smoke exhaust pipe (419) and a station hall B end smoke exhaust pipe (420), said station hall A end smoke exhaust pipe (419) and station hall B end smoke exhaust pipe (420) are respectively arranged at two ends of station hall public area (1);
one end of a station hall A-end smoke exhaust pipeline (419) is connected with a first smoke exhaust fan (405), and the other end of the station hall A-end smoke exhaust pipeline extends into the atrium (3);
one end of a station hall B-end smoke exhaust pipeline (420) is connected with a second smoke exhaust fan (406), and the other end of the station hall B-end smoke exhaust pipeline extends into the atrium (3);
a station hall A-end smoke exhaust pipeline (419) is provided with a plurality of station hall A-end smoke exhaust ports (413) and an atrium A-end smoke exhaust port (417);
the station hall B-end smoke exhaust pipeline (420) is provided with a plurality of station hall B-end smoke exhaust ports (414) and atrium B-end smoke exhaust ports (418);
wherein the atrium A end smoke vent (417) and the atrium B end smoke vent (418) are positioned in the smoke blocking vertical wall (8), and the station hall A end smoke vent (413) and the station hall B end smoke vent (414) are positioned outside the smoke blocking vertical wall (8);
smoke outlet electric air valves are arranged in the station hall A-end smoke outlet (413), the atrium A-end smoke outlet (417), the station hall B-end smoke outlet (414) and the atrium B-end smoke outlet (418), so that the smoke outlets arranged at the same position can be independently controlled to be opened or closed.
3. A fire ventilation and smoke exhaust system for an atrium type subway station as claimed in claim 2, wherein the other end of the first smoke exhaust fan (405) is connected to the first smoke exhaust air valve (403) and the first smoke exhaust air booth (401) in sequence, the other end of the second smoke exhaust fan (406) is connected to the second smoke exhaust air valve (404) and the second smoke exhaust air booth (402) in sequence, a third smoke exhaust air valve (409) is arranged between the smoke exhaust pipeline (419) at the A end of the station hall and the first smoke exhaust fan (405), and a fourth smoke exhaust air valve (410) is arranged between the smoke exhaust pipeline (420) at the B end of the station hall and the second smoke exhaust fan (406).
4. The atrium type subway station fire ventilation and smoke exhaust system as claimed in claim 2 or 3, wherein said smoke exhaust system (4) further comprises platform A end smoke exhaust pipe (421), platform B end smoke exhaust pipe (422), fifth smoke exhaust air valve (411) and sixth smoke exhaust air valve (412),
the platform A end smoke exhaust pipeline (421) and the platform B end smoke exhaust pipeline (422) are arranged at two ends of the platform public area (2);
one end of a smoke exhaust pipeline (421) at the A end of the platform is connected with a first smoke exhaust fan (405), and the other end of the smoke exhaust pipeline extends out of the atrium (3);
one end of a smoke exhaust pipeline (422) at the B end of the platform is connected with a second smoke exhaust fan (406), and the other end of the smoke exhaust pipeline extends out of the atrium (3);
the platform A-end smoke exhaust pipeline (421) is provided with a plurality of platform A-end smoke exhaust ports (415) at equal intervals, the platform B-end smoke exhaust pipeline (422) is provided with a plurality of platform B-end smoke exhaust ports (416) 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 smoke exhaust electric air valves, so that the platform A-end smoke exhaust port (415) and the platform B-end smoke exhaust port (416) are normally open, and the platform A-end smoke exhaust port (415) and the platform B-end smoke exhaust port (416) are positioned outside the smoke blocking vertical wall (8);
a fifth smoke exhaust air valve (411) is arranged between the smoke exhaust pipeline (421) at the A end of the platform and the first smoke exhaust fan (405), and a sixth smoke exhaust air valve (412) is arranged between the smoke exhaust pipeline (422) at the B end of the platform and the second smoke exhaust fan (406).
5. An atrium type subway station fire ventilation and smoke exhaust system as claimed in any one of the preceding claims, wherein said air supply system (5) comprises a station hall A end air supply duct (519), a station hall B end air supply duct (520),
the station hall A end air supply pipeline (519) and the station hall B end air supply pipeline (520) are arranged at two ends of the station hall public area (1),
one end of an air supply pipeline (519) at the A end of the station hall is connected with a first air supply fan (505), and the other end of the air supply pipeline extends into the atrium (3);
one end of an air supply pipeline (520) at the B end of the station hall is connected with a second air supply fan (506), and the other end of the air supply pipeline extends into the atrium (3);
a plurality of station hall A end air supply outlets (513) and a plurality of atrium A end air supply outlets (517) are arranged on the station hall A end air supply pipeline (519) at equal intervals, and a plurality of station hall B end air supply outlets (514) and an atrium B end air supply outlet (518) are arranged on the station hall B end air supply pipeline (520) at equal intervals;
and each station hall A end air supply outlet (513), each atrium A end air supply outlet (517), each station hall B end air supply outlet (514) and each atrium B end air supply outlet (518) are respectively provided with an air supply outlet electric air valve, so that the air supply outlets arranged at the same position can be independently controlled to be opened or closed by the air supply outlet electric air valves.
6. The fire ventilation and smoke exhaust system for the atrium type subway station as claimed in any one of the preceding claims, wherein the other end of the first air supply blower (505) is connected to the first air supply air valve (503) and the first air supply booth (501) in sequence, the other end of the second air supply blower (506) is connected to the second air supply air valve (504) and the second air supply booth (502) in sequence, the third air supply air valve (509) is arranged between the station hall A end air supply pipeline (519) and the first air supply blower (505), and the fourth air supply air valve (510) is arranged between the station hall B end air supply pipeline (520) and the second air supply blower (506).
7. The fire ventilation and smoke exhaust system of an atrium type subway station as claimed in any one of the preceding claims, wherein said air supply system (5) further comprises 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 pipeline (521) and the platform B end air supply pipeline (522) are arranged at two ends of the platform public area (2),
one end of the air supply pipeline (521) at the A end of the platform is connected with a first air supply fan (505), and the other end of the air supply pipeline extends out of the atrium (3);
one end of the air supply pipeline (522) at the B end of the platform is connected with a second air supply fan (506), and the other end of the air supply pipeline extends out of the atrium (3);
the air supply pipeline (521) at the end A of the platform is provided with a plurality of air supply outlets (515) at the end A of the platform at equal intervals, the air supply pipeline (522) at the end B of the platform is provided with a plurality of air supply outlets (516) at the end B of the platform at equal intervals, and the air supply outlets (515) at the end A of the platform and the air supply outlets (516) at the end B of the platform are positioned outside the smoke blocking vertical wall (8);
a fifth air supply air valve (511) is arranged between the platform A end air supply pipeline (521) and the first air supply fan (505), and a sixth air supply air valve (512) is arranged between the platform B end air supply pipeline (522) and the second air supply fan (506).
8. The atrium type subway station fire ventilation and smoke exhaust system as claimed in any one of the preceding claims, wherein said heat exhaust system (6) comprises a platform A end heat exhaust system smoke exhaust duct (613), a platform B end heat exhaust system smoke exhaust duct (614), said platform A end heat exhaust system smoke exhaust duct (613), said platform B end heat exhaust system smoke exhaust duct (614) are installed at both ends of the platform public area (2),
one end of a smoke exhaust pipeline (613) of the heat exhaust system at the A end of the platform is connected with a first heat exhaust fan (605), and the other end of the smoke exhaust pipeline extends out of the atrium (3);
one end of a smoke exhaust pipeline (614) of the heat exhaust system at the B end of the platform is connected with the second heat exhaust fan (606), and the other end of the smoke exhaust pipeline extends out of the atrium (3);
a first exhaust port (611) of the heat extraction system is arranged on the exhaust pipe (613) of the heat extraction system at the A end of the platform, a second exhaust port (612) of the heat extraction system is arranged on the exhaust pipe (614) of the heat extraction system at the B end of the platform, and the first exhaust port (611) of the heat extraction system and the second exhaust port (612) of the heat extraction system are positioned outside the smoke blocking vertical wall (8);
the other end of the first heat exhaust air blower (605) is sequentially connected with a first heat exhaust air valve (603) and a first heat exhaust air pavilion (601), the other end of the second heat exhaust air blower (606) is sequentially connected with a second heat exhaust air valve (604) and a second heat exhaust air pavilion (602), a third heat exhaust air valve (609) is arranged between the platform A-end heat exhaust system smoke exhaust pipeline (613) and the first heat exhaust air blower (605), and a fourth heat exhaust air valve (610) is arranged between the platform B-end heat exhaust system smoke exhaust pipeline (614) and the second heat exhaust air blower (606).
9. A fire ventilation and smoke exhaust system for an atrium type subway station as claimed in any one of the preceding claims, wherein a first muffler (407) is arranged between said third smoke exhaust air valve (409) and said first smoke exhaust fan (405) and between said fifth smoke exhaust air valve (411) and said first smoke exhaust fan (405);
a second silencer (408) is arranged 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);
third mufflers (507) are arranged between the third air supply air valve (509) and the first air supply fan (505) and between the fifth air supply air valve (511) and the first air supply fan (505);
a fourth silencer (508) is arranged between the fourth air supply air valve (510) and the second air supply fan (506) and between the sixth air supply air valve (512) and the second air supply fan (506);
a fifth muffler (607) is arranged between the third hot blast exhaust valve (609) and the first hot blast exhaust fan (605), and a sixth muffler (608) is arranged between the fourth hot blast exhaust valve (610) and the second hot blast exhaust fan (606).
10. Method for fire ventilation and smoke exhaust system of a atrium type subway station based on claims 1-9, comprising the following steps:
in a fire disaster in the platform public area (2):
s1: when the platform public area (2) catches fire, a first smoke exhaust fan (405) and a second smoke exhaust fan (406) are started, then a first smoke exhaust air valve (403), a second smoke exhaust air valve (404), a fifth smoke exhaust air valve (411) and a sixth smoke exhaust air valve (412) are started, a third smoke exhaust air valve (409) and a fourth smoke exhaust air valve (410) are closed, and a smoke exhaust port electric air valve at a station hall A end smoke exhaust port (413), a smoke exhaust port electric air valve at a station hall B end smoke exhaust port (414), a smoke exhaust port electric air valve at an atrium A end smoke exhaust port (417) and a smoke exhaust port platform electric air valve at an atrium B end smoke exhaust port (418) are kept in an original state, so that the first smoke exhaust fan (405) and the second smoke exhaust fan (406) exhaust smoke to the public area (2).
S2: the first heat exhausting fan (605) and the second heat exhausting fan (606) are started, the first heat exhausting valve (603), the second heat exhausting valve (604), the third heat exhausting valve (609) and the fourth heat exhausting valve (610) are started, and smoke is exhausted to the platform public area (2) through the first smoke outlet (611) of the heat exhausting system and the second smoke outlet (612) of the heat exhausting system.
S3: opening a first air supply fan (505), a second air supply fan (506), a first air supply air valve (503), a second air supply air valve (504), a third air supply air valve (509) and a fourth air supply air valve (510), closing a fifth air supply air valve (511) and a sixth air supply air valve (512), opening an air supply outlet electric air valve at a station hall A end air supply outlet (513), an air supply outlet electric air valve at a station hall B end air supply outlet (514), an air supply outlet electric air valve at a atrium A end air supply outlet (517) and an air supply outlet electric air valve at an atrium B end air supply outlet (518), and enabling the first air supply fan (505) and the second air supply fan (506) to supply air to a station hall public area (1) and an atrium (3).
S4: an air curtain (71) of the staircase (7) is opened to prevent the smoke in the platform public area (2) from spreading to the station and hall public area (1) through the opening of the staircase (7).
When station hall public area (1) conflagration:
s1: when a station hall public area (1) catches fire, a first smoke exhaust fan (405) and a second smoke exhaust fan (406) are started, a first smoke exhaust air valve (403), a second smoke exhaust air valve (404), a third smoke exhaust air valve (409) and a fourth smoke exhaust air valve (410) are started, a fifth smoke exhaust air valve (411) and a sixth smoke exhaust air valve (412) are closed, a smoke exhaust port electric air valve at a station hall A-end smoke exhaust port (413) and a smoke exhaust port electric air valve at a station hall B-end smoke exhaust port (414) are opened, a smoke exhaust port electric air valve at a atrium A-end smoke exhaust port (417) and a smoke exhaust port electric air valve at an atrium B-end smoke exhaust port (418) are closed, and the first smoke exhaust fan (405) and the second smoke exhaust fan (406) only exhaust smoke to non-atrium (3) areas of the station hall public area (1).
S2: the first heat exhausting blower (605) and the second heat exhausting blower (606) are closed, and the first heat exhausting valve (603), the second heat exhausting valve (604), the third heat exhausting valve (609) and the fourth heat exhausting valve (610) are closed.
S3: the method comprises the steps of opening a first air supply fan (505), a second air supply fan (506), opening a first air supply air valve (503), a second air supply air valve (504), a third air supply air valve (509) and a fourth air supply air valve (510), closing a fifth air supply air valve (511) and a sixth air supply air valve (512), closing an air supply outlet electric air valve at a station hall A end air supply outlet (513), an air supply outlet electric air valve at a station hall B end air supply outlet (514), opening an air supply outlet electric air valve at a atrium A end air supply outlet (517) and an air supply outlet electric air valve at an atrium B end air supply outlet (518), and enabling the first air supply fan (505) and the second air supply fan (506) to supply air to the atrium (3).
S4: then an air curtain (71) of the staircase (7) is opened to prevent the smoke in the station hall from spreading to the station public area (2) through the entrance of the staircase (7).
When the atrium (3) is in fire:
s1: when a fire disaster happens to the atrium (3), a first smoke exhaust fan (405) and a second smoke exhaust fan (406) are started, a first smoke exhaust air valve (403), a second smoke exhaust air valve (404), a third smoke exhaust air valve (409) and a fourth smoke exhaust air valve (410) are started, a fifth smoke exhaust air valve (411) and a sixth smoke exhaust air valve (412) are closed, a smoke exhaust port electric air valve at a smoke exhaust port (413) at the station hall A end and a smoke exhaust port electric air valve at a smoke exhaust port (414) at the station hall B end are closed, a smoke exhaust port electric air valve at a smoke exhaust port (417) at the atrium A end and a smoke exhaust port electric air valve at an atrium B end (418) are opened, and the first smoke exhaust fan (405) and the second smoke exhaust fan (406) are started to exhaust smoke only in the atrium (3) area of the station hall public area (1).
S2: the first heat exhausting blower (605) and the second heat exhausting blower (606) are closed, and the first heat exhausting valve (603), the second heat exhausting valve (604), the third heat exhausting valve (609) and the fourth heat exhausting valve (610) are closed.
S3: the method comprises the steps of opening a first air supply fan (505), a second air supply fan (506), opening a first air supply air valve (503), a second air supply air valve (504), a third air supply air valve (509) and a fourth air supply air valve (510), closing a fifth air supply air valve (511) and a sixth air supply air valve (512), opening an air supply outlet electric air valve at a station hall A end air supply outlet (513), an air supply outlet electric air valve at a station hall B end air supply outlet (514), closing an air supply outlet electric air valve at a atrium A end air supply outlet (517) and an air supply outlet electric air valve at an atrium B end air supply outlet (518), and enabling the first air supply fan (505) and the second air supply fan (506) to supply air to a non-atrium (3) region in a station hall public area (1).
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