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Fire ventilation and smoke exhaust method for subway transfer station hall

A technology for subway transfer stations and station halls, which is applied to the field of fire ventilation and smoke exhaust in subway transfer station halls, can solve the problem of not being able to maximize the smoke exhaust effect, reduce the use efficiency of the subway station ventilation and smoke exhaust system, and reduce fire ventilation. The problem of single exhaust mode and other problems can achieve the effect of quickly controlling the fire situation, realizing the effect of exhausting smoke, and reducing casualties and property losses.

Active Publication Date: 2021-01-15
CHINA ACAD OF SAFETY SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a method for fire ventilation and smoke exhaust in subway transfer station halls, which is used to solve the problem of single fire ventilation and smoke exhaust modes in existing station halls, which cannot maximize the smoke exhaust effect, and greatly reduces the cost of the subway. The use efficiency of station ventilation and smoke exhaust system

Method used

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  • Fire ventilation and smoke exhaust method for subway transfer station hall
  • Fire ventilation and smoke exhaust method for subway transfer station hall
  • Fire ventilation and smoke exhaust method for subway transfer station hall

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] When a fire breaks out in the public area of ​​the first station hall 1, turn on the smoke exhaust system in the public area of ​​the first station hall 1, that is, turn on all the dampers D1 and D2 in the first station hall 1, and then turn on the fan T1, exhaust the smoke in the public area of ​​the station hall of the first station hall 1 through the exhaust outlet G1 installed in the first station hall 1; close the smoke exhaust system in the public area of ​​the station hall of the second station hall 2, that is, the second station All the air valves D1, D2 and fan T1 in Hall 2 are closed; the air supply system in the public area of ​​the first platform 3 and the second platform 4 is closed, that is, all the air blowers of the first platform 3 and the second platform 4 are closed. Valve D5, air valve D6 and fan T3 are all in the closed state.

[0048] After the above operations, a negative pressure is formed in the public area of ​​the first station hall 1. On the ...

Embodiment 2

[0050] When a fire breaks out in the public area of ​​the first station hall 1, turn on the smoke exhaust system in the public area of ​​the first station hall 1, that is, turn on all the dampers D1 and D2 in the first station hall 1, and then turn on the fan T1, exhaust the smoke in the public area of ​​the station hall of the first station hall 1 through the exhaust outlet G1 installed in the first station hall 1; close the smoke exhaust system in the public area of ​​the station hall of the second station hall 2, that is, the second station All dampers D1, D2 and fan T1 of hall 2 are closed; to open the air supply system in the public area of ​​the first platform 3, first open all the dampers D5 and D6 of the first platform 3, and then , turn on the fan T3, and send fresh air to the platform public area of ​​the first platform 3 through the air supply port G3 set on the first platform 3; close the air supply system of the platform public area of ​​the second platform 4, that...

Embodiment 3

[0054] When a fire breaks out in the public area of ​​the station hall of the first station hall 1, the smoke exhaust system in the public area of ​​the station hall of the first station hall 1 is turned on, that is, all the dampers D1 and D2 of the first station hall 1 are turned on, and then, the The fan T1 exhausts the smoke in the public area of ​​the first station hall 1 through the exhaust outlet G1 installed in the first station hall 1; the smoke exhaust system in the public area of ​​the station hall 2 is turned on, that is, the All the dampers D1 and D2 in the second station hall 2, and then, turn on the fan T1, and discharge the gas located in the public area of ​​the second station hall 2 through the air outlet G1 arranged in the second station hall 2, and the second station hall 2 The first station hall 1 jointly conducts smoke exhaust; closes the air supply system in the public area of ​​the first platform 3 and the second platform 4, that is, all the dampers D5, D...

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Abstract

The invention relates to the technical field of fire ventilation and smoke exhaust, and discloses a fire ventilation and smoke exhaust method for a subway transfer station hall, which comprises the following steps: S1, a preset smoke exhaust and air supply mode is started to exhaust smoke from a station hall public area in which a fire occurs: S1, a station hall public area smoke exhaust system ofthe station hall in which the fire occurs is started; S2, a station hall public area smoke exhaust system of the station hall without the fire, a station hall public area air supply system and a platform public area air supply system of the platform are closed at the same time; or, at least one of the station hall public area smoke exhaust system of the station hall without the fire and the platform public area air supply system of the platform is started; or, the station hall public area air supply system of the station hall without the fire is started, and the station hall public area smokeexhaust system of the station hall without the fire is closed. Diversification of ventilation and smoke exhaust modes of the subway transfer station hall is achieved, smoke exhaust systems or air supply systems of different transferred stations and station halls are comprehensively utilized, the smoke exhaust effect is maximized, and the fire smoke exhaust efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of fire ventilation and smoke exhaust, in particular to a method for fire ventilation and smoke exhaust in subway transfer station halls. Background technique [0002] At present, the risks of subway stations, especially subway transfer stations, are mainly various potential risks brought about by the high concentration of passenger flow and cross-conflict of large passenger flow, and because the platform of the subway station is usually an island structure, the platform is a densely populated place. Once a fire breaks out, if the fire smoke cannot be discharged in time and effectively, and the fire is controlled, it is very easy to cause a vicious accident involving mass death and mass injury. [0003] In order to solve the above problems, the existing subway underground station projects are designed with a ventilation and smoke exhaust system, which is used to timely and effectively discharge the fire smok...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/34F24F11/35F24F11/64F24F11/65F24F7/06
CPCF24F7/06F24F11/34F24F11/35F24F11/64F24F11/65
Inventor 史聪灵丁伟吕敬民李建车洪磊任飞
Owner CHINA ACAD OF SAFETY SCI & TECH