Reasons and solutions for gear pump jamming

  Gear pumps may encounter lagging problems during prolonged operation or under specific circumstances, resulting in the pump not functioning properly or a significant decrease in efficiency. The following are some common causes of gear pump jamming and corresponding solutions:

Cause analysis:

1. Excessive viscosity of the medium: When the viscosity of the medium conveyed by the pump is too high, especially during cold start, it may cause the gears inside the pump to be difficult to rotate, resulting in jamming.

2. * * Foreign object blockage * *: Impurities such as solid particles and fibers in the medium enter the pump chamber, which can easily get stuck in the small gaps between gears and affect the normal rotation of the pump.

3. Improper assembly: Poor alignment of the gear shaft, damaged bearings, and unreasonable gear clearance settings can all lead to poor pump operation.

4. * * Wear and Aging * *: After prolonged use, parts such as gears, shafts, and housings may experience severe wear, leading to changes in fit clearance and causing jamming.

5. * * Overloading * *: Long term overload operation of the pump or starting with the outlet valve closed can increase the burden on the motor, causing jamming or even burning risks.

Handling method:

1. * * Media pretreatment * *: Ensure that the media is clean and free of impurities, and add filters if necessary; For high viscosity media, consider using a pump with heating function or preheating the medium.

2. * * Adjust Gap * *: Check and reset the appropriate gap between gears to ensure that it is neither too large to cause leakage nor too small to get stuck.

3. * * Regular maintenance * *: Regularly inspect the internal parts of the pump, replace worn parts in a timely manner, and maintain the good condition of each component.

4. * * Correct positioning and alignment * *: Ensure that the gear pump is correctly aligned with the drive device to avoid vibration and additional stress.

5. * * Avoid dry running and overload * *: Before starting, confirm that the inlet valve is open to avoid the pump running in a liquid free state or under overload.

6. * * Professional Maintenance * *: When encountering complex situations, seek professional technicians for comprehensive testing and troubleshooting to avoid blindly disassembling and causing greater damage.

By following the above steps, it is possible to effectively prevent and solve the problem of gear pump jamming, and maintain its long-term stable operation. Proper daily management and maintenance are equally crucial, as they can greatly reduce the incidence of such failures and extend the service life of gear pumps.