Fire safety ventilation method and device

Abstract

The invention belongs to the technical field of fire safety ventilation, and particularly relates to a fire safety ventilation method and a device thereof. The method comprises the following steps: arranging air induction holes, an air induction channel and induced draft fans on a bottom plate in a sealed place or the lower parts of the periphery of the side surface, wherein the air induction channel and the induced draft fans are connected with the air induction holes; smoke and fire generated in the sealed place is discharged through the sealed air induction channel after being introduced into the air induction holes under the function of the induced draft fans so as to realize the instantaneous enhanced discharge of the smoke and fire. The device comprises a bottom plate in the sealed place, wherein the bottom plate is provided with at least one air induction hole, the sealed air induction channel is communicated and arranged correspondingly below the corresponding air induction hole, and the tail end of the air induction channel is provided with the induced draft fans. The movement direction of smoke and fire can be changed, and the instantaneous enhanced discharge is realized so as to be favorable for trapped people to escape and buy time for fire control rescue.

Description

technical field [0001] The invention belongs to the technical field of fire safety ventilation, and in particular relates to a fire safety ventilation method and a device thereof. Rescue provides time. Background technique [0002] As we all know, the fire-fighting ventilation air inlets and outlets in closed places such as existing public transportation systems, public buildings and subway platforms are generally located on the upper part to ensure internal and external air circulation and improve internal air quality. Usually it’s okay, but once a fire accident occurs, the most fatal weakness of this kind of fire-fighting ventilation facility is that the smoke and fire are discharged upwards and the exhaust fan acts as a combustion aid, which will rapidly expand the spread of the fire and increase the generation of dust and smoke. Floating in a confined space makes people suffocate, and smoke is the main cause of a large number of deaths in various fire accidents. In a w...

AI Technical Summary

Problems solved by technology

Usually it’s okay, but once a fire accident occurs, the most fatal weakness of this kind of fire-fighting ventilation facility is that the smoke and fire are discharged upwards and the exhaust fan acts as a combustion aid, which will rapidly expand the spread of the fire and increase the generation of dust and smoke. Floating in a confined space makes people suffocate, and smoke is the main cause of a large number of deaths in various fire accidents

In short, it is not conducive to the escape of trapped persons or waiting for fire rescue.

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