Desulphurization pump fault causes and treatment methods

desulfurization pump were picked from the same series of transmission, containing the bracket and bearing components, pump shaft diameter is large, rigid good, the cantilever is short, not bent under harsh conditions and oscillation. Bearing using single row circular cone roller bearings and angular touch ball bearing combination, can accept the pump the maximum axial and radial load, bearing selection smooth smooth lithium base grease. The smooth advantage: high oil film strength; Oil adhesion is good, not easy to lost, use for a long time; Simple seal, bearing body is equipped with sealed end cover, both ends can be useful to prevent dirt into the bearing pulp, etc.

desulphurization pump failure reason analysis and processing

desulfurization pump: the effect of desulfurization water pump is an important part of the desulfurization system, the boiler exhaust emission plays an important effect, each corresponds to a layer of nozzle desulphurization pump, put into the inside of the absorption tower flue gas temperature is reduced, so as to protect the inside of the absorption tower anticorrosive material is not damaged by high temperature flue gas.

desulfurization circulating pump attacks fault factor mainly has the following several aspects:

( 1) Entrance to the filter clogging. Because the device runs for a long time, desulphurization pump anti-corrosion lining rubber aging form falls off a portion of the rubber lining, adhesion on the inlet screen. After the completion of the absorption tower in the protection, because protect personnel all has not completely cleaned up the clutter.

( 2) Import and export pipeline scaling. Long-term shutdown desulphurization pump, slurry failed to the pipe flushing clean, scaling on the wall, when again kai pump, slurry flow not free form pipe vibration severity.

( 3) Bearing box of oil leakage, high temperature and oscillation. Bearing box seal wear or end cover bolts cracking of oil formation permeability. The oil seal wear makes external machine sealing water or leak sealing slurry into the bearing box, oil deteriorated and reduce the cooling results.

( 4) body of bad mechanical seal wear. Machine sealing seal water pressure is insufficient or there are impurities, will form the wear of mechanical seal ring. Such as seal water pressure no greater than the outlet pressure of the water pump, if there are impurities, slurry will flow into the machine dynamic ring seal, the machine seal wear. By the same token, the sealing water seal wear also can aggravate the machine for a long time, and even damage.

the above reason is that affect our normal operation of desulphurization pump more common reason, other causes such as slurry concentration is too high, small water reducer, import and export of small size head damage, severe motor current also attack, such as the essence of also nots allow to ignore.

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