Fountain pump, fountain submersible pump failure analysis

Fountain submersible pump is mainly used in various large-scale music program-controlled fountain garden project, water engineering, chemical industry, salt, sea water discharge and mining special environment and other occasions, can also be used to transport slightly corrosive liquids.

Fountain submersible pump common failure analysis:

Failure reasons: water shortage or not Sheung Shui
1. The water level is lower than the pump suction
2. The water main leaks or the water pipe is disconnected
3. Rotor or shaft loose
4. Part of the impeller loose
5. Motor reversal
6. The pipe is blocked
Solution:
1. Increase the water pipe
2. Replacement of water pipes
3. Replace the rotor
4. Reassemble the impeller
5. Replace the power connector
6. Clear the blockage

Pump flow is reduced

1. Seal ring is severely worn
2. Filtering network, diversion shell, impeller flow channel is blocked
3. Voltage, frequency decreased
4. Moving water level drops more than pump rated head
1. Replace the seal ring
2. Remove obstructions
3. Stop to be voltage, frequency reaches the specified value and then start
4. Replace the high-lift pump

Unit violent vibration or electricity
Through the large table pointer swing
1. The pump shaft or motor shaft is bent
2. Pump shaft, motor shaft and bearing wear serious
3. Thrust bearings are worn or damaged
4. Thrust disk rupture
5. Motor rotor sweep chamber
6. Impeller, rotor imbalance or rotor breakage
7. Loose coupling bolts
8. Water pump low head large flow motor overload
9. Well water gushing water is not enough, intermittent water

1. Repair or replace pump shaft or motor shaft
2. Replace the bearings
3. Replace the thrust bearing
4. Replace the thrust plate
5, to find out the reasons for repair
6. Redo or replace the rotor
7. Tighten the bolts
8. Plus gate valve control flow in the operating point operation
9. Plus gate valve to control the water

The motor can not start buzzing

1. Phase failure
2. The voltage is too low
3. Bearing axle
4. Rust ring between the impeller seal ring and so on
5. Pump impeller impeller can not rotate

1. Check the line or start the equipment
2. Adjust the voltage
3. Repair of shafts and bearings
4. Pry the pump to rotate or remove the pump reload
5. Remove the foreign matter

Insulation resistance is too low winding burned

1. Joint water
2. Winding damage
3. Cable breakage
4. Water shortage in the motor
5. Phase running
6. Long-time overload operation
7. The motor is buried in the sand

1. Repair joints
2. Wrap or replace the winding
3. Wrap the cable
4. Ensure that the motor filled with water
5. Check the wiring and equipment
6. Plus gate valve to control the flow or replace the small size pump
7. Install the motor according to the installation requirements

Manufacturers recommend: Shenlong stainless steel fountain pump

Keywords:Fountain pumps, fountain submersible pumps, failure analysis