Tunnel vertical shaft or inclined shaft ventilation and smoke extraction device based on monsoon

Abstract

The invention provides a tunnel vertical shaft or inclined shaft ventilation and smoke extraction device based on monsoon. A smoke extraction channel communicating with a vertical shaft or an inclinedshaft is arranged at the top or the side upper portion of a tunnel, and the vertical shaft or the inclined shaft communicates with the outside. According to the smoke extraction device, a fire-proofsafety valve is arranged in the smoke extraction channel, a vertical shaft or inclined shaft air delivery duct with a trumpet-shaped inlet is connected to an appropriate location of the vertical shaftor the inclined shaft, the vertical shaft or inclined shaft air delivery duct is internally provided with a wind-force storage warehouse, an air door, an air compressor and a wind wheel, the air inlet end of the wind-force storage warehouse communicates with the air compressor, an automatic safety valve is arranged in the wind-force storage warehouse, the air outlet end of the wind-force storagewarehouse communicates with an upper air delivery opening and an lower air delivery opening of the vertical shaft and is provided with a wind speed control valve, the air compressor communicates withthe wind wheel positioned at a trumpet-shaped air opening position, and heat storage devices are uniformly distributed in the vertical shaft or the inclined shaft in the vertical direction of the vertical shaft. The tunnel vertical shaft or inclined shaft ventilation and the smoke extraction device can accelerate the airflow circulation speed rate in the smoke extraction channel and the vertical shaft or the inclined shaft, so that the ventilation and smoke extraction efficiency in the tunnel under a natural ventilation manner is promoted.

Description

technical field [0001] The invention relates to the field of traffic safety, in particular to a monsoon-based shaft or inclined shaft ventilation and smoke exhaust device. Background technique [0002] In recent years, with the rapid development of China's economy, tunnels in mountainous and hilly areas have also been widely used, and extra-long tunnels are also increasing. A tunnel is a building that lays a railway underground or underwater for the passage of motor vehicles. The tunnel is a semi-enclosed space. During the daily operation of the tunnel, vehicles emit emissions such as CO, NO x When the harmful exhaust gas and smoke discharged exceed a certain concentration, the health of drivers and passengers in the tunnel will be seriously damaged, and once a fire that is difficult to extinguish occurs in the tunnel, the temperature and smoke in the tunnel will accumulate rapidly. , so the tunnel must be ventilated. [0003] Longitudinal mechanical smoke exhaust in tunn...

AI Technical Summary

Problems solved by technology

However, due to the uncertainty of the wind speed and direction in the daily tunnels and shafts, it is difficult to guarantee the effect of shaft ventilation and smoke exhaust in case of fire.

Images