Axial pump launch process, the axial flow of the pump process, the axial flow of the pump should be: First, the single-stage axial pump inlet valve fully open, closed outlet valve, start the motor, to be normal after the speed Open the outlet valve, adjust to the required conditions.
Axial flow pump accurate operation method
Axial pump operation can be divided into three processes, namely, start, run, stop.
Start: Before starting, please do the following:
(1) View the current situation of axial pump equipment.
(2) bearing oil, oil level normal, oil qualified
(3) the axial flow pump inlet valve fully open.
(4) pump water or vacuum pump water (except for irrigation) to open the exhaust valve exhaust.
(5) to see the shaft seal water leakage, packing seal to a small amount of drip is appropriate.
(6) Motor rotation direction is accurate.
After the completion of the operation is completed, you can start the motor, to be normal after the speed, view the pressure, current and pay attention to whether the oscillation and noise. After all normal, gradually open the outlet valve, adjust to the required conditions, pay attention to the time Should not exceed 3 minutes.
Operation: During the operation, the main tour to view, view the content of four aspects:
1, bearing the view
(1) bearing temperature does not exceed 75 ℃.
(2) bearing room can not water, into impurities, oil can not be emulsified or black.
(3) rolling bearing thin oil lubrication, the oil surface should not be lower than the oil standard center line.
(4) is not a different sound, rolling bearing damage is usually abnormal sound.
2, vacuum table, pressure gauge, ammeter reading is not normal
(1) the vacuum gauge pointer can not swing too large, too much may make the pump inlet vaporization, another vacuum table reading can not be too high, too high may be the inlet valve blockage, stuck or sink water level lower.
(2) the export pressure gauge reading is too low, may be sealed ring, guide leaf sets of severe wear. Definitely, the rotor gap is too large, or the outlet valve is too large, large flow, low head.
(3) ammeter reading is too large, may be large flow, or is set, there is a conflict between the rotor.
3, the pump unit is not a large oscillation, the formation of oscillation factors are:
(1) axial flow pump and motor axis is not aligned.
(2) axial flow pump or motor feet bolts loose, or the foundation is not strong.
(3) rotor quality imbalance.
(4) pump in the small flow operation, the occurrence of radial force, return, cavitation.
4, sealing operation is not normal
(1) K-shaped power seal will not drip during normal operation.
(2) there is cooling water equipment, to see whether the water flow is normal.
Stop the pump
(1) axial pump pump should be closed first outlet valve to prevent the reverse valve failure caused by the outlet pipe pressure water poured into the pump, resulting in impeller rotation, the formation of pump damage.
(2) If the pump when the inertia is small, that is, after the power pump quickly stopped to clarify the pump Mocha or eccentric phenomenon.
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