What are the common methods for troubleshooting centrifugal fans? –Sollant share

The centrifugal fan is a common positive pressure fan, which may encounter some faults during use and needs to be eliminated. The following are common faults and troubleshooting methods of centrifugal fans:

Excessive Noise:

Centrifugal fans may have problems with excessive noise during operation. This can be caused by things like damaged bearings, loose screws, or an unbalanced impeller. The solution is to check and replace damaged parts, adjust the balance of the impeller, and tighten the screws.

Excessive vibration:

Centrifugal fans may experience excessive vibration during operation. This may be caused by unstable centrifugal fan installation, unbalanced impeller or damaged bearings. The solution is to check the installation of the centrifugal fan, adjust the balance of the impeller, and replace the damaged bearing.

Air Leakage/Pressure Relief:

Centrifugal fans may experience air leakage or pressure relief during operation. This can be caused by aging seals, loose screws, or loose plumbing connections. The solution is to check and replace damaged seals, tighten screws, and adjust pipe connections.

Motor overheating:

The motor of a centrifugal fan can overheat during operation. This may be caused by motor overload, unstable power supply voltage or poor heat dissipation of the motor. The solution is to check the rated power and rated current of the motor, adjust the power supply voltage, and improve the cooling effect of the motor at the same time.

The inhaled gas contains impurities:

when the centrifugal fan inhales the gas, if it contains impurities, it may cause damage to the impeller and other components. The solution is to install a filter or other filtering equipment at the air inlet of the centrifugal fan to prevent impurities from entering the centrifugal fan.

Impeller wear:

After a centrifugal fan has been in operation for a long time, the impeller may wear out, resulting in a drop in air flow and pressure, or even failure to operate normally. The solution is to replace the worn impeller.

Motor failure:

The motor of the centrifugal fan may fail, such as motor damage, cable damage, etc. The solution is to check the motor and cables, and replace faulty parts if necessary.

Improper Piping:

Improper piping of a centrifugal fan can result in increased airflow resistance, which can affect the performance of the centrifugal fan. The solution is to check whether the piping meets the requirements, and adjust or replace it if necessary.

Transmission system failure:

The transmission system of the centrifugal fan may fail, such as belt or coupling wear, looseness, etc. The solution is to check the transmission system and replace or adjust the faulty parts if necessary.

Blocked fan inlet:

The inlet of the centrifugal fan may be blocked by obstructions, such as garbage, leaves, etc. This can cause the airflow to decrease or stop, and can even cause the centrifugal fan to overheat. The solution is to clear the import blockage.

 

In short, centrifugal fans may encounter various failures and problems during use, which need to be eliminated and repaired in time. When using a centrifugal fan, attention should be paid to safety and correct operation, and at the same time, regular maintenance and maintenance should be carried out to prolong the service life of the centrifugal fan.

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