The water pump factory wants to tell you that as long as we understand
the mechanical structure during maintenance, we can solve the problem quickly
and well. The clean water centrifugal pump is a simple machine. During
maintenance, we should pay attention to the use within the rated range, and we
should not operate with no load. We should pay attention to avoid cavitation and
steam binding. We should strengthen inspection and replace the worn sealing
parts in time.
The following are the maintenance steps summarized by the
water pump plant based on years of experience:
1. Check whether the pipes and
joints of the clean water centrifugal pump are loose. Rotate the clean water
centrifugal pump by hand to see whether the pump is flexible;
2. Add bearing
lubricating oil into the bearing body, observe that the oil level should be at
the center line of the oil pointer, and the lubricating oil should be replaced
or replenished in time;
3. Unscrew the water diversion screw plug of the pump
body of the clean water centrifugal pump and inject water;
4. Close the gate
valve and outlet pressure gauge of the outlet pipe;
5. Inch the motor and
Wuxi welded pipe to see if the rotation direction of the motor is correct;
6.
Start the motor. When the clean water centrifugal pump is in normal operation,
open the outlet pressure gauge and gradually open the gate valve, and check the
motor load;
7. Try to control the flow and lift of the clean water
centrifugal pump within the range indicated on the label. Xinxiang Pump Plant
can obtain very good energy saving effect by ensuring that the centrifugal pump
operates at a higher efficiency point;
8. During the operation of the clean
water centrifugal pump in Xinxiang Pump Plant, the bearing temperature shall not
exceed the ambient temperature by 35 ℃, and the higher temperature shall not
exceed 80 ℃;
9. If any abnormal sound is found in the clean water centrifugal
pump, stop the pump immediately to check the cause;
10. When the clean water
centrifugal pump is to be stopped, first close the gate valve and pressure
gauge, and then stop the motor;
11. The lubricating oil of the clean water
centrifugal pump shall be changed every 500 hours after 100 hours within one
month of operation;
12. Regularly adjust the packing gland to ensure that the
leakage in the packing chamber is normal;
13. Regularly check the wear
condition of the shaft sleeve, and timely replace it if it is worn
seriously;
14. When the clean water centrifugal pump is used in cold winter,
the drain plug at the lower part of the pump body shall be unscrewed after
shutdown to drain the medium to prevent frost cracking;
15. If the clean
water centrifugal pump has been out of service for a long time, it is necessary
to disassemble all the pumps, wipe off the water, coat the rotating parts and
joints with grease, and store them properly.
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