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Time：2021-10-26Views：0
DC blowers are widely used in tunnels, underground garages, high-end civil buildings, metallurgy, factories and mines, etc., for ventilation and fire-fighting high-temperature smoke exhaust. Features of DC blower.
1. Since the impeller runs in the machine body without friction and does not need lubrication, the discharged gas is oil-free. It is an ideal pneumatic conveying gas source for chemical, food and other industries.
2. The blower is a volume operation blower. When in use, with the change of pressure, the flow rate changes very little. But the flow rate changes with the speed. Therefore, the selection range of pressure is very wide, and the selection of flow rate can be achieved by selecting the speed.
3. The speed of the blower is high, and the gap between the rotor and the rotor, the rotor and the body is small, so that there is less leakage and the volumetric efficiency is higher. The processing and assembly technology is strong, which can ensure the reasonable and uniform gap, which can achieve high volumetric efficiency without friction in the body due to thermal expansion.
4. The structure of the blower determines that its mechanical friction loss is very small. Because only the bearing and gear pair have mechanical contact on the material selection, the rotor, casing and gear ring have sufficient mechanical strength. Safe operation and long service life are a major feature of blower products.
5. The rotor of the blower has been checked for static and dynamic balance. The finished product runs smoothly with minimal vibration.
The three-phase star connection of the DC cooling fan has a variable frequency motor control circuit
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