Heat pump bearing Etiology

Since the vacuum pump in the case of high speed rotor speed too fast will support the formation of the rotor bearing heating. So heat pump bearings caused by the above, the solution there?

1. valve cracking: cracking when a valve is pressure on both sides of the impeller unbalance, rotor axial force occurs, the bearing load increased, long-term operation make the bearing temperature rise. In this case the valve should be replaced.

2. The shaft seal failure: When the shaft seal packing seal damage or water channel is blocked, it will form an air gap from the damage being sucked into the pump body, will lead to the intake and exhaust pump performance. If the long side of the seal failure, both sides will form a pressure imbalance impeller rotor axial force occurs, the bearing load increased, so that the bearing temperature increases.

3. The bearing preload is too large: This situation will promote the bearing clearance reduction or no clearance form bearing warming.

The shock effect: when the pump or bearing greater sensation occurs when the phenomenon of high bearing temperatures, vibration view the pump to find out the reason, eliminate vibration, the bearing temperature recovery.

5. Smooth phenomenon: smooth fat increase is too large or too small, or smooth grease type does not match, their prolonged use may be contaminated grease will form a smooth bearing heating.

6. Bearing damage: bearing roll and bearing retainer with bearing damage will have after overheating. Bearing damage it is necessary to promptly replaced with new bearings.