SDS Jet fan
The SDS jet fan i s developed, designed and manufactured by the company and passed the national 3C certification. This series of fans is suitable for the longitudinal ventilation system of highway and railway traffic tunnels, and also has an axial flow fan with the function of fire and smoke exhaust. According to the design of the tunnel ventilation system, the tunnel can be arranged longitudinally in series along the top of the tunnel or be arranged in parallel in the cross section of the inlet of the tunnel. Several jet fans can be installed and used for ventilation in the tunnel; when the fire occurs, it can be used in fire protection smoke. Therefore, the jet fan is a necessary equipment for tunnel operation.
Key Features
(1) The use of steel hollow-wing airfoil blades or die-cast aluminum alloy solid airfoil blades has the features of light weight,corrosion resistance, high temperature resistance, oxidation resistance, and no fracture, ensuring a long service life of the fan.The blades are airfoil shaped and have excellent aerodynamic performance with low air resistance, high fan efficiency, and large thrust power ratio.
(2) The blade angle can be adjusted. Users can adjust the blade angle to change the air flow as needed.
(3) By changing the phase sequence of the three-phase power input of the fan motor, the fan motor is forward or reversed,so that the fan can be used in the forward or reverse direction.Usually, the wind-return efficiency is more than 65% of the positive wind, and it can also be specially designed to reach 95% or more according to user requirements.
(4) Silencer, using perforated plate muffler structure,large sound absorption coefficient, absorbing audio bandwidth,effectively reducing noise.
(5) The fan adopts direct motor connection. The impeller,blades and motor can be disassembled. Therefore, it is easy to maintain.
(6) The impeller diameter, number of blades, blade adjustment angle range, motor power, and number of poles determine the performance of the fan to meet the different needs of the user.
(7) The fan is equipped with lifting rings for loading, unloading and mounting; the installation base of the fan is placed or placed under the installation requirements.
