When the high speed centrifugal fan meets the fault, it is best to arrange two or more than two professional personnel. No matter what type of fan is in the adjustment test of the fan, we must pay attention to the safety problem of the tester. One person controls the power switch, the other observes the various conditions and abnormality of the fan in the operation. Once the problem is found, the power is cut off in time, the safety of the fan and the debugger will be maintained, and the safety of the person should be put in the first place at all times.
However, as a relatively complex structure, the high speed centrifugal fan can be seen everywhere in life. Once the failure occurs, many users will be helpless, because there are many types of centrifugal fans, so the faults are different if they want to solve the various faults of the centrifugal fan, so that the use of the centrifugal fan can reach the best state, and it also needs to start from the debugging of the fan, so that it can be at a certain level. Solve some problems of fan, ensure the effective use of fans.
No matter whether there is any failure, the high speed centrifugal fan should ensure that the starting mode of the fan is correct because the starting mode of the centrifugal fan is mainly full pressure start and step-down start. No matter what kind of starting mode we choose, we should pay attention to the size of the current. In general, the current of the full pressure starting is 5-7 times the rated power. The starting voltage of the buck is proportional to the voltage square. When the capacity of the power grid is short, it should be used to start the buck.
Because the type classification of the high speed centrifugal fan is different, if the double speed centrifugal fan is used, it must start the low speed when starting, and check the rotation direction of the blade of the fan is correct. If the blower is started at high speed, the fan must be restarted again after the blower is still at rest so as to prevent the blade from turning back in the high speed condition. The situation.
For centrifugal fans and fan boxes, the motor power required by the high speed centrifugal fans is at certain working conditions. When the inlet of the air inlet is fully open, the required power is greater. If the inlet is fully opened for operation, the motor is in danger of damage. When the fan is in test, it is better to close the valve on the inlet or inlet pipe of the fan. After the operation, the valve is gradually opened to reach the required condition, and should pay attention to whether the operating current of the fan is exceeding the rated current.
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