Universal-type flue gas short circuit preventing device for subway ventilation pavilion and installing method of universal-type flue gas short circuit preventing device

Abstract

The invention discloses a universal-type flue gas short circuit preventing device for a subway ventilation pavilion. The device comprises a flue gas outlet, a fireproof cloth, at least four first telescopic casing pipes and a cuboid connecting frame which is composed of at least four second telescopic casing pipes, at least four springs and at least four support columns and used for being installed at an exhaust outlet of the ventilation pavilion in a matched mode; one end of each first telescopic casing pipe is fixed to one support column, and the other ends of the first telescopic casing pipes are connected to the flue gas outlet; the fireproof cloth is arranged in a space formed by the first telescopic casing pipes and the cuboid connecting frame and forms a flue gas exhaust channel together with the first telescopic casing pipes, the cuboid connecting frame and the flue gas outlet, and flue gas exhausted out of the exhaust outlet of the ventilation pavilion is induced to be directionally exhausted. The universal-type flue gas short circuit preventing device is reasonable in design and convenient to use and can effectively solve the flue gas short circuit problem that under the fire working condition, fire flue gas exhausted out of the subway ventilation pavilion massively spreads and invades a new subway ventilation pavilion and ground entrances and exits by serving as temporarily and additionally mounted equipment of the subway ventilation pavilion.

Description

technical field [0001] The invention relates to the technical field of fire protection, in particular to a general-purpose subway wind pavilion anti-smoke short-circuit device and an installation method thereof. Background technique [0002] The wind pavilion is the port for air exchange between subway stations and tunnels and the outside world, and is an indispensable part of the subway ventilation and air conditioning system. As the above-ground auxiliary buildings of subway lines and stations, 3 to 8 wind pavilions must be set up in each section or near the station. At present, in actual engineering, most of the wind pavilions are arranged in the order of "air supply pavilion-smoke exhaust pavilion-piston wind pavilion", and according to the different space conditions for the construction of wind pavilions available on the ground, each wind pavilion Can be set up separately or combined. [0003] However, due to the tight space on the ground and the different requirement...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the above-mentioned prior art, the present invention provides a general-purpose subway air pavilion, especially a smoke short-circuit prevention device and an installation method suitable for a 1m-high open low air pavilion, which can be used as a temporary installation device for a subway air pavilion , which can solve the problem that the subway wind booth cannot effectively exhaust smoke under fire conditions

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