What's going on with the loud noise of the Roots blower and the alarm of the frequency converter? Troubleshooting and Solutions
During the operation of the Roots blower, if there is excessive noise accompanied by an alarm from the frequency converter, it may be caused by various reasons. This article will provide a detailed analysis of the cause of this issue and offer troubleshooting and solutions to help you quickly resolve the problem.
1、 Fault cause analysis
1. * * Mechanical malfunction**
-* * Unbalanced rotor * *: Improper manufacturing or installation of the rotor can cause vibration and noise, which in turn can trigger an alarm in the frequency converter.
-* * Bearing damage * *: Insufficient or damaged bearing lubrication can generate high-frequency noise and may cause overload alarms in the frequency converter.
-* * Gear wear * *: Poor gear meshing or wear can lead to increased noise and may trigger frequency converter alarms.
2. * * Electrical malfunction**
-Improper setting of frequency converter parameters: Improper setting of frequency converter parameters, such as frequency range, acceleration time, etc., may cause unstable operation of the fan, generate noise, and trigger an alarm.
-Motor malfunction: Short circuit or poor insulation of the motor winding can cause abnormal current and trigger an alarm in the frequency converter.
3. * * Aerodynamic malfunction**
-* * Poor intake and exhaust * *: Blockage or unreasonable design of the intake and exhaust pipes can cause an increase in fan load, generate noise, and trigger a frequency converter alarm.
-Gas leakage: Leakage of the fan casing or pipeline can cause abnormal gas flow, generate noise, and may trigger an alarm in the frequency converter.
2、 Troubleshooting and Solutions
1. * * Mechanical troubleshooting**
-Check rotor balance: Ensure rotor balance through dynamic balance testing.
-Check the condition of bearings: Regularly check the lubrication status of bearings and replace damaged bearings in a timely manner.
-* * Check gear condition * *: Regularly check the meshing status of gears and replace worn gears in a timely manner.
2. * * Electrical troubleshooting**
-Check the parameters of the frequency converter: Set the frequency converter parameters reasonably according to the operating requirements of the fan.
-* * Check the motor status * *: Ensure the motor operates normally through insulation testing and current testing.
3. * * Aerodynamic troubleshooting**
-* * Check the intake and exhaust pipes * *: Ensure that the intake and exhaust pipes are unobstructed and designed reasonably.
-Check for gas leaks: Conduct pressure testing to ensure that there are no leaks in the fan casing and pipelines.
3、 Case sharing
The Roots blower in a certain factory produces excessive noise during operation and is accompanied by a frequency converter alarm. After inspection, it was found that the main reasons were rotor imbalance and improper parameter settings of the frequency converter. Through dynamic balance testing and adjusting the parameters of the frequency converter, the problem was solved and the fan operation returned to normal.
summarize
The noise of Roots blower is high and accompanied by frequency converter alarm, which may be caused by mechanical failure, electrical failure or aerodynamic failure. By conducting detailed troubleshooting and taking corresponding solutions, the problem can be effectively resolved to ensure the normal operation of the fan.
