Desulfurization pump start parking

1, start: start before the following steps to check the entire unit.
(1) desulfurization pump should be placed on a solid foundation, to withstand the full weight to eliminate vibration, tighten all the foot bolt.
(2) The pipeline valve should have its own support frame, and should be supported firmly. Pump flange gasket, tighten the connecting bolts, it should be noted that some pump metal lining higher than the flange, then the tightness should be tight bolts, not too tight, so as not to damage the gasket.
(3) Turn the shaft by hand according to the pump rotation direction. When the shaft rotates, there should be no friction, otherwise adjust the clearance of the impeller.
(4) Check the motor steering, to ensure that the pump according to the direction of the arrow marked on the pump body rotation.
(5) In the case of direct drive, the shaft of the pump and the shaft of the motor should be precisely centered. When the belt is driven, the shaft of the pump and the shaft of the motor should be parallel and the position of the sheave should be adjusted so as to be perpendicular to the groove to avoid violent vibration and wear.
(6) In the desulfurization pump suction pipe has been installed a detachable short tube, the length of the front casing can be removed and replace the wearing parts for easy pump maintenance (7) seal inspection: packing seal pump should check the shaft Seal water volume, water pressure is appropriate, adjust the shaft seal water, from the gland at the leakage to a drop of seepage as well, the packing is too tight, easy to heat sleeve, while consuming power, the filler is too loose liquid leakage too Large, shaft seal pressure is generally higher than the pump outlet pressure 0.35, shaft seal water generally recommended by different models in 0.15L / S-2.1L / S choice.
2, running (1) should be checked during operation shaft seal water pressure and flow timely adjust the filler cover or replace the filler to ensure that there is always a small amount of clean water through the shaft.
(2) Regular inspection of bearing components operating conditions, the lack of grease or too much, can lead to bearing temperature rise, wear and tear, so the amount of grease filling should be moderate. Generally fill the amount of bearing and bearing gland space 1 / 3--1 / 2 is appropriate. Grease 2000 hours to replace.
(3) The performance of the pump deteriorates as the gap between the impeller and the guard plate increases, reducing the efficiency. Therefore, the impeller should be adjusted in time to maintain a certain clearance so that the pump can maintain efficient operation. When the pump is worn out to meet the requirements System needs, should be replaced wearing parts, demolition timing pump, the estimated life of wearing parts, so as to avoid bearing system failure when the serious consequences.
3, stop the pump: stop pumping as much as possible before the pump pumping for a while to clean the slurry flowing through the pump, and then turn off the pump, gate, packing seal water and bearing body cooling water.

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