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6 ldtn - 10 type pump operation and troubleshooting

by:Waxing     2020-11-13
6 ldtn - 10 type pump operation and troubleshooting - 2019 01 - 25 wang wh ( Zenith steel thermal power plant) A, the preparing work before starting the pump: 1, to determine whether the motor to correct ( When using point when trying to turn, should dismantle coupling pin and adjusting pad, alone on a motor) 。 2, check the pump inlet and outlet piping, recirculation piping system is able to eliminate all of the high point of the air. 3, check the water pump seal, cooling auxiliary water system such as water is in a state of supply. 4, open the seal water, preliminary adjust tightness of packing gland, spill a drop of water. 5, flipping the pump rotor, check whether the rotating flexible. 6, check whether the water level in the condenser hot well satisfies the requirement of filling height of the water pump. 7, check whether the motor control protection system is reliable. Second, startup and operation: 1, check the pump outlet valve in the closed position. 2, the first opening pump seal water and cooling water pipe. 3, open the bleed line of water pump. 4, open the pump inlet valve, air emissions, confirmed the water pump is in a state full of water. 5, start the pump, and then quickly open the outlet valve. 6, found the abnormal situation should stop pump inspection: current volatility or current exceeds rating, pump operation has obvious friction sound and vibration. In July and formally adjust tightness of packing gland, are mild water pump start packing after leakage. Three, water pump failure analysis and elimination
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