A tunnel ventilation system

Abstract

The invention discloses a tunnel ventilating system which comprises two parallel tunnel bodies (1), and a middle partition (2) is arranged between the two tunnel bodies (1). The tunnel ventilating system is characterized in that a ventilating box (3) is arranged at the top end of the middle partition (2) and provided with two ventilating pipelines (4) which penetrate through the top walls of the two tunnel bodies (1) correspondingly; a soil foundation layer (5) is arranged on the tunnel bodies (1), and vent holes are formed in the upper portion of the soil foundation layer (5) and connected with the ventilating pipelines (4); and air intaking fans (7) are arranged at the two ends of the ventilating box (3) correspondingly, and exhaust fans (8) are arranged in the ventilating pipelines (4). The tunnel ventilating system has the advantages that defects in the prior art can be overcome, and the structure design is reasonable and novel.

Description

technical field [0001] The invention relates to a tunnel ventilation system, which belongs to the field of tunnel ventilation. Background technique [0002] In the tunnel, the driving vehicles will continuously emit harmful exhaust gas and smoke. When the concentration of harmful exhaust gas and smoke exceeds a certain value, it will cause harm to the drivers and passengers, affecting their health and driving safety. Therefore, maintain a good air condition in the tunnel It is a necessary condition for driving safety, and the purpose of ventilation is to reduce the harmful gas or pollutants in the tunnel to below the allowable concentration, so as to ensure the safety and comfort of driving, which is an important criterion for the service level of the tunnel. [0003] Existing tunnel ventilation systems are divided into active ventilation systems and passive ventilation systems. The active ventilation system achieves ventilation through fan-type ventilation equipment, but i...

AI Technical Summary

Problems solved by technology

The active ventilation system achieves ventilation through fan-type ventilation equipment, but in the prior art, due to the high concentration of air pollution at the air outlet of the tunnel, it is difficult to meet the environmental protection requirements

If passive ventilation is adopted, the layout of ventilation shafts is often difficult to find a suitable layout location due to the restrictions of various conditions such as landscape, objection of surrounding residents, planning, etc.

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