Fire ventilation and smoke exhaust system and method for semi-underground atrium subway station

Abstract

The invention provides a fire ventilation and smoke exhaust system of a semi-underground atrium subway station and a smoke exhaust control method thereof. The smoke exhaust system includes a platform floor and a station hall floor, the platform floor is located underground, the station hall floor is located on the ground, and there is a through atrium area in the middle of the platform floor and the station hall floor, the platform floor and the station hall floor There are smoke outlets on the top of the atrium area, and there are atrium smoke outlets on the top of the atrium area; there are also air supply outlets on the top of the station hall layer and platform layer. According to different conditions, the control method selectively opens the air exhaust outlets and air supply outlets on the station hall floor and the platform floor, and closely cooperates with the smoke exhaust outlets in the atrium, so as to optimize the smoke exhaust effect and provide better ventilation for the personnel in the station. evacuation conditions.

Description

technical field [0001] The invention relates to the technical field of fire ventilation and smoke exhaust, in particular to a fire ventilation and smoke exhaust system of a semi-underground atrium subway station and a smoke exhaust control method thereof. Background technique [0002] At present, subway stations are densely populated places. Once a fire breaks out in the public area of ​​the subway station, and the fire smoke cannot be discharged in a timely and effective manner to control the fire, it is very easy to cause fatal accidents; especially for the atrium of a semi-underground subway station. In the event of a fire, it is more difficult to evacuate people in the public area of ​​the platform, and it is more difficult to discharge toxic and harmful smoke. [0003] In order to solve the above problems, the current subway underground station projects are designed with a ventilation and smoke exhaust system, which is used to timely and effectively discharge the fire s...

AI Technical Summary

Problems solved by technology

[0004] However, most of the ventilation and smoke exhaust systems in public areas of semi-underground subway stations in the prior art are installed in non-atrium areas, lacking targeted countermeasures for fires in the atrium area, and it is difficult to prevent the fire smoke in the atrium area from spreading to the platform Or the public area of ​​the station hall, which will adversely affect the evacuation of personnel

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