The correct method of using the centrifugal pump

The starting step of the centrifugal pump should be to first open the inlet valve to close the outlet valve, start the motor after the normal speed, and then gradually open the outlet valve to adjust the required working conditions. Pipeline centrifugal pump
The starting step of the centrifugal pump should be to first open the inlet valve to close the outlet valve, start the motor after the normal speed, and then gradually open the outlet valve to adjust the required working conditions.

The operation of the centrifugal pump can be divided into three steps: start, run, stop.

Start of the centrifugal pump: The following preparations should be made before starting:

(1) Check the integrity of the pump equipment.
(2) The bearing is oil-filled, the oil level is normal, and the oil quality is qualified. (3) The inlet valve of the centrifugal pump is fully opened.
(4) Inject water in the pump or vacuum pump (except for reverse irrigation) to open the vent valve exhaust.
(5) Check the leakage of the shaft seal. The packing seal is suitable for a little dripping.
(6) The motor rotates in the correct direction.

After the above preparations are completed, the motor can be started. After the speed is normal, check the pressure and current and pay attention to whether there is vibration and noise. After all normal, gradually open the outlet valve to adjust to the required working condition. Note that the time for closing the valve should not exceed 3 minutes. .

The centrifugal pump is running: it is mainly a patrol inspection during operation. The inspection has four aspects:

1, bearing inspection

(1) Bearing temperature does not exceed 75 ° C.
(2) The bearing chamber cannot enter water or enter impurities, and the oil cannot be emulsified or blackened.
(3) When the rolling bearing is lubricated with thin oil, the oil level should not be lower than the center line of the oil mark.
(4) Whether there is abnormal sound, abnormal sound usually occurs when the rolling bearing is damaged.
Article from: http://NewsDetail277T2.html China Hardware Business Network http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn

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