Maintenance and maintenance method of clean water centrifugal pump


Release time:

2022-07-14

The clean water centrifugal pump is a rear-opening type, and it is not necessary to disassemble the suction and discharge pipelines when disassembling the pump cover and impeller. The suspension houses two ball bearings, lubricated with machine oil or grease. The pump is directly driven by an electric motor through an elastic coupling. The vortex chamber, feet, inlet flange and outlet flange are cast as a whole. The structure of the clean water centrifugal pump is simple. First of all, it should be ensured that the pump is used within the rated range and cannot be run at no-load. Secondly, pay attention to avoid cavitation and steam binding, strengthen inspections, and replace worn sealing parts in time. Finally, pay attention to the following points. Items, you can master the correct use method and prolong the service life of the pump.

The clean water centrifugal pump is a rear-opening type, and it is not necessary to disassemble the suction and discharge pipelines when disassembling the pump cover and impeller. The suspension houses two ball bearings, lubricated with machine oil or grease. The pump is directly driven by an electric motor through an elastic coupling. The vortex chamber, feet, inlet flange and outlet flange are cast as a whole. The structure of the clean water centrifugal pump is simple. First of all, it should be ensured that the pump is used within the rated range and cannot be run at no-load. Secondly, pay attention to avoid cavitation and steam binding, strengthen inspections, and replace worn sealing parts in time. Finally, pay attention to the following points. Items, you can master the correct use method and prolong the service life of the pump.

Maintenance and maintenance of clean water centrifugal pump
1. Check whether the pipeline and joints of the centrifugal pump are loose. Turn the clean water centrifugal pump by hand to see if the clean water centrifugal 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 mark, and the lubricating oil should be replaced or supplemented in time.

3. Unscrew the water diversion plug of the pump body of the clean water centrifugal pump, and pour the water diversion.

4. Close the gate valve and outlet pressure gauge of the water outlet pipeline.

5. Jog the motor and check whether the motor is turned correctly.

6. Start the motor. When the clean water centrifugal pump is running normally, open the outlet pressure gauge and see if it shows the proper pressure, then gradually open the gate valve and check the motor load at the same time.

7. Try to control the flow and head of the clean water centrifugal pump within the range indicated on the sign to ensure that the centrifugal pump operates at the highest efficiency point in order to obtain the greatest energy saving effect.

8. During the operation of the clean water centrifugal pump, the bearing temperature should not exceed the ambient temperature of 35℃, and the maximum temperature of the tin-free welded pipe should not exceed 80℃.

9. If abnormal sound is found in the clean water centrifugal pump, stop 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. In the first month of operation, the clean water centrifugal pump should replace the lubricating oil after 100 hours, and after every 500 hours, change the oil once.

12. Regularly adjust the packing gland to ensure normal dripping in the packing chamber.

13. Regularly check the wear of the shaft sleeve, and replace it in time after the wear is large.

14. When the clean water centrifugal pump is used in the cold winter season, after parking, unscrew the drain plug at the lower part of the pump body to drain the medium. Prevent freeze cracking.

15. If the tin-free welded pipe of the clean water centrifugal pump is disabled for a long time, it is necessary to disassemble the pump, wipe off the water, apply grease to the rotating parts and joints, and store them properly.

The structure of the clean water centrifugal pump is simple. First of all, it should be ensured that the pump is used within the rated range and cannot be run at no-load. Secondly, pay attention to avoid cavitation and steam binding, strengthen inspections, and replace worn sealing parts in time. Finally, pay attention to the following points. Items, you can master the correct use method and prolong the service life of the pump.