SDS series jet fan specific characteristics:
The SDS jet fan is composed of a horn, a muffler, a whole fluid, a fan section and a motor. At the same time, it also includes supporting safety hanger and cantilever, supporting shock absorption equipment and other supporting auxiliary equipment.
(1)Two-way series jet fan has high reverse air efficiency, and the reverse flow rate is greater than or equal to 99% of the forward flow rate. The reverse flow of one-way jet fan does not exceed 70% of the forward flow.
(2)The maximum power failure time of the fan from full speed forward to full speed reverse or from full speed reverse to full speed forward is 30S. At any time, under the condition that the air temperature flowing through the fan is 250oC, the direction can be reversed four times in 15min.
(3)The impeller is composed of blades and hubs, among which, the hub is made of ZG230-450 cast steel or die-cast aluminum, and the blade is made of ZL104 aluminum-silicon alloy precision casting of adjustable airfoil blade, the blade root and tail are sufficiently strengthened in design and process casting processing, and the installation Angle can be adjusted according to different performance requirements of users. And by strict process manufacturing and strict static and dynamic balance effect, over speed test, running balance and reliable.
(4)The fan's support, shell, cover and other steel structures have been heat-impregnated galvanized or sprayed with heat-resistant paint, and can withstand 60min in an environment of 280oC without smoking or releasing toxic gases.
(5)The length of the pipe silencer at both ends of the fan is usually twice the diameter of the fan impeller. When the noise requirement is high, the length of the silencer can be twice the diameter of the fan impeller, and the silencer and the fan barrel are bolted.
(6)The noise level of the fan is less than 70dB(A) when measured at 10m and 45o away from the fan outlet. The noise level of the fan is less than 100dB(A) when measured at 1m and 45o away from the fan outlet. The silencer hole plate of the fan is hot-dip galvanized or 1cr13 stainless steel plate is used according to customer needs, which improves the corrosion resistance and rust prevention level of the fan.
(7)Motor: fully enclosed squirrel cage, directly connected to wheel hub, working voltage 380V, frequency 50HZ, insulation class H, protection class IP55, from the motor cable is connected to the fan body shell on the connection box, the motor is equipped with lubricating grease nozzle, external conduit is connected to the fan body shell lubricating grease nozzle. The motor can operate in the environment of -31.1℃ - +50℃, which is suitable for the working operation requirements at an altitude of 3500m. The bearing is lubricated with sealed grease, which can withstand two-way thrust and can run continuously for a long time. Motor average trouble-free working time: ≥20000 hours.
(8)When a fire breaks out in the tunnel, it can run continuously for 60 minutes when the ambient temperature is 280 ° C.
(9)With the highland motor, the fan blade Angle can be adjusted accordingly to meet the ventilation needs of high altitude.
(10)Normal operation transport general medium air, in case of fire transport smoke.