WT35-11, WT40-11 roof axial flow fan
First, use
(1) power plants, petrochemical, textile, factories, warehouses, stadiums and other buildings.
(2) local ventilation using a fully ventilated or simple pipe network.
Two, structural characteristics
(1) shutter door - automatically open at the start, shut down automatically when shut down.
(2) rain cap, diversion ring - beautiful appearance, small wind resistance.
Three, performance and selection
(1) performance characteristics
EQ (\o\ac, 1, 1) - the use of such special and suitable for the diversion channel of overall ventilation pressure and large flow impeller, compared with similar foreign products, in the same flow, lowest power consumption of the motor, to achieve the purpose of comprehensive energy saving.
EQ \o\ac (C, 2) low noise - Test than A sound level of 25 ~ 27dB ~.
(2) fan selection example
EQ \o\ac (C, 1), the principle of the user according to the required standard operating conditions (temperature of 20 degrees C, atmospheric pressure of 101325Pa), from the performance of the selection of the appropriate figure to determine the fan, blade angle and power of the motor, speed, speed, and so on.
The EQ \o\ac (s, 2) standard is converted to the standard state in accordance with the following formula (s = 2).
Q0=Q (m3/h)
Pst0=Pst
Type
Q: air volume
Pst: working pressure
T: operating temperature (c)
Pa: local atmospheric pressure (Pa)
Example: ventilation design
Q=30000m3/h Pst=100Pa in the t=12 environment, the local atmospheric pressure Pa=100791Pa
Q0=Q=30000 m3/h
Pst0=Pst=98Pa
Check performance selection chart:
Fan WT40-11, No. 10
Blade angle: C
Motor: 3.0KW, 960r/min
Note: if there are special requirements such as corrosion and explosion resistance, and the factory should be contacted, in order to specify.
Four, working conditions
(1) the temperature of the working medium is -40 to 45 DEG C, the relative humidity is not more than 85%, and the dust content is not more than 100mg/m3,
(2) power supply voltage 380V, three-phase, 50Hz.