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Home > Products > Axial flow fire exhaust fan

BY-SDS Axial flow fire exhaust fan (tunnel jet fan)
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  • BY-SDS Axial flow fire exhaust fan (tunnel jet fan)

BY-SDS Axial flow fire exhaust fan (tunnel jet fan)

The jet fan is mainly used in the longitudinal ventilation system of road and railway tunnels. The fans are generally suspended at the top or both sides of the tunnel, which does not occupy the traffic area and does not require additional air ducts. The low soil construction price is a very economical way of ventilation.

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PRODUCT DETAILS

When the fan is working, it can generate higher thrust from a given energy. After a part of the total air flow through the tunnel is sucked into the impeller by the fan, it is ejected from the exit at a high speed. Based on the principle of impact transmission, high-speed airflow will transfer energy to the air in the tunnel, pushing the air in the tunnel forward together. When the flow rate decays to a certain value, the next set of fans continues to operate. In this way, it is achieved that fresh air is taken in from the inlet end of the tunnel and polluted air is discharged from the outlet end.

SDS axial flow fire exhaust fan (tunnel jet fan) adopts the international advanced three-dimensional design theory, uses computational fluid dynamics (CFD) and other methods to simulate the replacement of real flow field design, its performance parameters and operational stability. The service life, energy consumption and other aspects have been significantly improved compared with the same series of products in the market. The outer casing and the muffling section are imported from foreign high-quality process machines, and the joints of the outer shell and the inner wall are welded. The inner wall of the impeller section is finished, which ensures the coaxiality and strength of the casing and ensures the diameter of the blade. To the gap, the impeller adopts a wing-shaped blade.

SDS axial flow fire exhaust fan (tunnel jet fan) special motor, protection grade is IP55, insulation grade up to H grade. The whole machine adopts anti-corrosion coating inside and outside, which not only has beautiful appearance and excellent anti-corrosion performance. For high noise requirements, a muffler can be added to reduce its noise.

Continuous operation for more than 60 minutes under high temperature conditions of 250 °C, the technical performance, quality requirements and economic indicators of the wind turbine can meet the requirements of tunnels and dam projects such as water conservancy subways. The actual use of roads and railways.


Performance parameter table

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