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Causes of Seal Leakage in Rotary Lobe Pumps
2023-05-15 17:08:43
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When the rotary lobe pump is in use, there may be leakage problems, which may affect the use. The first reason we think of is usually the leakage of the mechanical seal.
 
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1. Rapid change of ambient temperature.
2. Emptying, cavitation or holding pressure for a long time, resulting in seal damage and leakage of rotary lobe pump unit.
3. The return flow is too large, which leads to the sediment at the bottom of the suction tube side container (tower, kettle, tank, pool), which damages the seal.
4. shut down for a long time, there is no manual turning when restarting, and the sealing surface is torn by friction due to adhesion.
5. The corrosive, polymeric and gelling substances in the medium are increased.
6. The actual output of the water ring vacuum unit is too small, a large number of medium pumps circulate and heat accumulates, which leads to medium gasification and seal failure.
7. The working condition of water ring vacuum unit changes or adjusts frequently.
8. Sudden power outage or fault shutdown, etc., sudden leakage of rotary lobe pump in normal operation, if it can not be found in time, it will often lead to a big accident or loss, which should be paid attention to and effective measures should be taken.

Mechanical seal leakage will make the rotary lobe pump can not be used normally, so in use, we must pay attention to master the use method, regular maintenance of the relevant aspects of the equipment to ensure that the equipment can operate stably and reduce losses.
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