Operating voltage adjustment method of the factory centrifugal fan

When determining the variable speed category of the centrifugal fan, attention should be paid to the critical speed ratio of the mechanical equipment, otherwise, it is likely to destroy the equipment when the speed ratio is adjusted to its natural frequency. When selecting the variable speed device, we should match the load characteristics of the fan as far as possible to avoid the actual operation effect. But to follow a standard, that is, the fan speed ratio should not be too large, but its smaller speed ratio should not be lower than 50% of the rating. If the working voltage can be adjusted to maintain it in a moderate situation, the application of the factory centrifugal fan can not only achieve environmental protection and energy saving, but also complete the high efficiency, so that the fan can achieve the estimated actual effect of the application. Combined with the actual situation, in order to maintain the centrifugal fan from being destroyed when terminated, when the operating temperature is less than 5℃, the residual water in the machine equipment and pipeline should be discharged, so as not to lock and destroy the centrifugal fan and pipeline. If the factory centrifugal fan needs to be suspended for a long time, in addition to the remaining water, the outer surface of the rolling bearings and other components is coated with rust prevention agent to prevent corrosion, so that the motor rotor is moved, the original height is located in less parts. In that way, the fan will maintain the original situation when the capital is put into operation again.

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