This series of rotary-in-type counter-rotating axial flow tunnel ventilators is mainly used in high-speed rail, expressway, railway, diversion tunnel metal mine tunnels and other fields. The temperature of the conveying medium does not exceed 60 ° C, the temperature is not more than 95 ± 3% (25 ° C) and non-corrosive.
It adopts the international advanced ternary flow aerodynamics theory, and other high-tech design and manufacturing such as pulsing combined orthogonal blades and airfoil, which has advanced level at home and abroad.
The utility model adopts an outsourced double-type muffling device, which has the characteristics of ultra-low noise and the sound-absorbing effect is good.
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