1)The aerofoil twisted blade has high efficiency of Qigong and remarkable effect of energy saving. It can be matched with ventilation networks of various resistance and volume types to maintain long-term efficient operation.
2)It is equipped with a steady flow ring device, the characteristic curve has no hump, there is no surge danger, it can operate safely and steadily under any resistance state, and is suitable for the joint operation of multiple fans.
3)The structure of direct connection between motor and impeller has good overall stability, convenient installation and maintenance. The average trouble-free working time of the motor is greater than 20000h.
4)Compact structure, good anti-sweat performance. The main body of the fan adopts steel plate welding structure, and the blades are made of high-strength silicon aluminum alloy material, which has high overall strength and strong resistance to tunnel shock wave.
5)The blade installation Angle is adjustable, and the working condition of the fan can be adjusted according to the change of the tunnel environment.
6)The blade installation Angle is adjustable, and the working condition of the fan can be adjusted according to the change of the tunnel environment.
7)Motor insulation class H, protection class IP55, to meet the high temperature environment of 280℃, continuous and reliable operation of 120min.
8)Measurement noise at A 45 degree Angle of 1m from the fan ≤100dB (A).
9)Fan supply according to the design drawing requirements include motor, impeller, cylinder, collector, diffuser, silencer, high temperature soft connection, matching combined air valve, shock absorber and installation accessories. Muffler box according to the design requirements, choose two or one.