Fan Overview:
.uses either a single-stage or dual-stage impeller configuration
based on the operating conditions specified by the user. All blades
are made of forged aluminum alloy, offering excellent specific
strength and safety margins.
Fan Features:
1. The fan uses either a single-stage or dual-stage impeller
design.
2. The mid and rear guide vanes of the fan use a plate-type twisted
fixed structure, which alters the airflow pre-rotation at the
impeller's outlet and inlet flow field while also supporting the
rotor.
3. Choosing the option to adjust the blade installation angle
during operation requires additional components such as a servo
hydraulic cylinder, servo adjustment drive unit, electric actuator,
and hydraulic control station.
4. The fan is equipped with an electric brake device with safety
protection measures. During braking, the brake force is gradually
increased by the deformation of compression springs, preventing
sudden increases in brake force that could damage the ventilation
equipment.
5. The fan achieves more than 40% reverse airflow across the full
performance range.
6. The fan uses rolling bearings with thin oil lubrication, with
forced oil supply from a lubrication station. A platinum resistance
primary instrument is installed on the bearing housing, with a
temperature inspection instrument provided. Additionally, a
vibration monitoring instrument can be optionally configured to
ensure the fan's smooth and stable operation.
7. The blades are designed with a twisted airfoil shape, and the
installation angle is steplessly adjustable between 0° and 50°.
8. There are two methods for adjusting the installation angle of
the impeller rotor blades: one allows for one-time adjustment of
blade installation angle after the fan is stopped, and the other
allows for adjustment of blade installation angle while the fan is
running.
Application scenario:
MAF series mine axial flow fan is a main fan with one-time rotor
blade angles specially designed for various coal mines and metal
mines, and it is also suitable for tunnel ventilation and other
departments of national economy.
