1. blades
The wind turbines impeller structure should adopt high -efficiency, high -intensity structural type.The axis flower with a diameter of more than 630mm (including 630mm) should be used with high -strength aluminum alloy leaves.
2. motor
The axial flow fan should be directly driven by the motor, and the motor should be directly exposed to the airflow. The centrifugal cabinet fan can use a belt transmission or direct transmission method.The wind turbine is equipped with a standard product of wind -cold, mouse cage type, and closed humid and humid type. It uses full voltage start and the insulation level is F -level.The motor of the smoke exhaust fan should meet the normal operation of the whole machine in the process of excluding 280 ℃ smoke 0.5h.The bearing replacement cycle is not less than 30,000 hours.
The selection of the motor meets the launching requirements of the bidding equipment, and the full -voltage start -up current should not be more than 7 times that of the full load current.
3. Shock absorption
During the assembly process, the static balance is preceded to balance, and its case vibration speed is not greater than 1.8mm/s.
4. Fan case
The manufacturing accuracy of the case should comply with the relevant specifications. The motor support in the case should have sufficient strength and stiffness, and can withstand the dynamic load generated by operation.The axial fan case should be treated with hot -dip galvanized treatment, and the average thickness of the hot -dip galvanized layer should not be less than 70 μm.
5. When the cabinet centrifugal fan uses the external belt transmission method of the motor, its transmission parts should be set.