Tunnel air-exchange device using a natural air-exchange method

Abstract

The present invention relates to a tunnel air-exchange device, and more specifically to one in which: the air inside normal tunnels including tunnels through which vehicles run is cleaned and polluted internal tunnel air is expelled to the outside, to which end cold air, supplied to water tanks of different sizes provided in line at set intervals in the floor inside the tunnel, is used to ensure that the heavy soot and gases in the polluted hot air generated by vehicles, are sucked into the water tanks while the lighter foul air is discharged through chimneys by convection, thereby creating a pleasant tunnel environment by always maintaining clean air inside the tunnel; and which also extinguishes fires by spraying fire-extinguishing water during tunnel fires. Accordingly, the present invention combines a chimney effect with natural convection provided by the water tanks to exchange the air inside the tunnel and naturally expel polluted air, which is in contrast to exhaust fans of the prior art because there is no generation of noise or heat, and expenses can be reduced since there is no electrical consumption.

Description

technical field [0001] The present invention relates to a tunnel ventilation device, in particular to a tunnel ventilation device adopting a natural ventilation method, which can purify the air inside a general tunnel including a vehicle passage tunnel, and at the same time discharge the polluted air inside the tunnel to Outside, a row of multiple water storage tanks of different sizes are set at certain intervals on the ground inside the tunnel. The cold air generated by the water storage tanks is supplied to the inside of the tunnel and meets the hot polluted air generated by vehicles to generate convection, making it heavier The soot and exhaust gas are absorbed by the water storage tank, and the light polluting gas is discharged to the outside through the chimney, so that the air inside the tunnel is always fresh, creating a comfortable tunnel environment, and when a fire breaks out in the tunnel, firefighting water can be sprayed to carry out Extinguishing. Background t...

AI Technical Summary

Problems solved by technology

[0006] However, in the method of arranging multiple large exhaust fans at the top of the tunnel to discharge the air and dust inside the tunnel to the outside, sometimes the air inside the tunnel cannot be discharged to the outside even if the multiple exhaust fans are started at the same time.

[0007] That is, if the length of the tunnel is long, even if the exhaust fan exhausts the air inside the tunnel, the internal air can only move a limited distance and spread to the whole tunnel before reaching the next exhaust fan, causing the next exhaust fan to be unable to receive the previous exhaust fan The internal air sent is discharged to the outside, so that the exhaust fan can only circulate the internal air around the area where the exhaust fan is installed.

[0008] In addition, there are often vehicles driving at high speed inside the tunnel, and the air flow generated by the vehicles will form a serious vortex inside the tunnel, causing the exhaust fan to be unable to discharge the air inside the tunnel to the outside, and can only circulate in a small space

[0009] In addition, due to the noise and heat generated by the exhaust fans in the currently completed tunnels, the tunnel environment is very uncomfortable, and it requires a lot of power consumption, causing great economic losses

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