Tunnel Fans
Underground ventilation is essential for promoting airflow in environments such as mines and tunnels, playing a crucial role in the extraction of harmful gases and temperature control. These hazardous gases may originate from the operation of combustion equipment, blasting materials, or even from the soil and rock itself, making the presence of effective ventilation systems essential.
In the context of tunnels, ventilation is most commonly applied in road tunnels, but it is also indispensable in railway tunnels, cable tunnels, subways, hydroelectric facilities, among others. There are two main types of ventilation in underground tunnels:
Temporary Ventilation for Tunnel Construction
During tunnel construction, ventilation plays an important role in protecting the health and safety of workers. The most common method, known as the “dead-end” system, involves injecting clean air into the tunnel through ducts, while contaminated air is expelled through the tunnel gallery. This ventilation is temporary and aims to ensure adequate working conditions, in compliance with legal standards, for any type of tunnel under construction, including pipelines and basic sanitation tunnels.
FanTR offers not only industrial axial fans for this application, but also complete turn-key solutions, including ducts, mounting bases, and drive systems, providing an integrated and efficient solution for ventilation during construction.
Permanent Ventilation for Tunnel Operation
After construction is completed, permanent ventilation becomes essential, especially in tunnels used by people, such as road and subway tunnels. The main objective is to dilute and remove pollutant gases emitted by vehicles such as cars, trucks, buses, and trains, ensuring air quality and comfort for both tunnel operators and users.
In addition to comfort, permanent ventilation serves a critical safety function. In the event of a fire resulting from accidents, a properly designed ventilation system ensures smoke extraction and the maintenance of clean air, allowing for safe evacuation. For this application, FanTR supplies industrial axial fans capable of withstanding temperatures of up to 400 °C for two hours, ensuring continuous ventilation system operation in emergency situations.
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