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How to choose a tunnel fan?

When choosing a tunnel fan, the following aspects need to be considered:

1. Fan flow rate: Calculate the required air volume of the fan based on parameters such as tunnel length, width, and height. This parameter may be adjusted due to special circumstances such as traffic flow and pollutant emissions inside the tunnel.

2. Wind pressure: Based on parameters such as the horizontal position and height difference of the tunnel, consider the resistance and wind resistance pressure that the fan needs to overcome to determine the appropriate wind pressure for the fan.

3. Fan types: Common tunnel fans include axial flow fans, centrifugal fans, and mixed flow fans. Choosing the appropriate fan type can effectively reduce costs and improve efficiency.

4. Energy efficiency ratio: Consider the energy efficiency ratio of the fan and its impact on the air circulation inside the tunnel to achieve the goal of energy conservation and emission reduction.

5. Noise: Choose fans with low noise and vibration to avoid unnecessary interference with the surrounding environment and personnel.

By considering the above aspects comprehensively, selecting a suitable tunnel fan can achieve functions such as air circulation and ventilation inside the tunnel.

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