1. Key installation points of water pump

The installation position of the water pump should meet the requirement of allowing vacuum suction height, and the foundation must be horizontal and stable to ensure that the rotation direction of the power machinery is consistent with that of the water pump. When the water pump and power machine are connected by a shaft, it is necessary to ensure that

The axis is on the same straight line to prevent vibration and single-sided bearing wear during unit operation; If tape transmission is used, the axis should be parallel to each other and the tape wheel should be aligned. If there are multiple units in the same computer room, between units,

There should be a distance of at least 800mm between the unit and the wall. The suction pipe of the water pump must be well sealed, and bends and gate valves should be minimized as much as possible. When filling and diverting water, the air should be completely discharged. During operation, there should be no accumulation of air in the pipe, and the suction pipe should be slightly upward

The inclined connection with the water pump inlet should have a certain submergence depth at the inlet. The reserved holes on the foundation of the water pump should be poured according to the size of the water pump.

2. Analysis and Handling Methods of Common Malfunctions in Water Pumps

Different types of water pumps have different forms of malfunction, but in summary, they share the following common characteristics.

(1) Insufficient traffic

Cause: Insufficient flow of the water pump is mainly caused by leakage of the suction pipe and the bottom valve; Water inlet blockage; Insufficient water inlet depth of the bottom valve; The speed of the water pump is too low; Excessive wear of the sealing ring or impeller; Excessive water absorption height, etc.

Solution: Check the suction pipe and bottom valve, block the gas leakage source; Clean up the silt or blockages at the inlet; The inlet depth of the bottom valve must be greater than 1.5 times the diameter of the inlet pipe, and the inlet depth of the bottom valve should be increased; Check the power supply voltage,

Increase the speed of the water pump and replace the sealing ring or impeller; Lower the installation position of the water pump or replace the high head water pump.

(2) Excessive power consumption

Cause: The water pump speed is too high; The main shaft of the water pump is bent or the main shaft of the water pump is not concentric or parallel to the main shaft of the motor; The selected water pump has an inappropriate head; The water pump sucks in sediment or has blockages; Damage to motor ball bearings, etc.

Solution: Check the circuit voltage and reduce the speed of the water pump; Correct the main shaft of the water pump or adjust the relative position between the water pump and the motor; Select a water pump with appropriate head; Clean up sediment or blockages; Replace the ball bearings of the motor.

(3) Severe vibration or noise generated by the pump body

Cause: Poor installation of water pump or high installation of water pump; Motor ball bearings are damaged; The main shaft of the water pump is bent or not concentric or parallel with the main shaft of the motor.

Solution: Install the water pump steadily or lower the installation height of the water pump; Replace the motor ball bearings; Correct the bent water pump spindle or adjust the relative position between the water pump and the motor.

(4) Overheating of transmission shaft or motor bearings

Causes: Lack of lubricating oil or bearing rupture, etc.

Solution: Add lubricating oil or replace bearings.

(5) The water pump is not producing water

Cause: The pump body and suction pipe are not fully filled with water; The dynamic water level is lower than the water pump filter pipe; Broken suction pipe, etc.

Solution: Eliminate the malfunction of the bottom valve and fill the water intake with water; Lower the installation position of the water pump to keep the filter pipe below the dynamic water level, or wait for the dynamic water level to rise before pumping water from the filter pipe; Repair or replace the suction pipe

1. Key installation points of water pump

The installation position of the water pump should meet the requirement of allowing vacuum suction height, and the foundation must be horizontal and stable to ensure that the rotation direction of the power machinery is consistent with that of the water pump. When the water pump and power machine are connected by a shaft, it is necessary to ensure that

The axis is on the same straight line to prevent vibration and single-sided bearing wear during unit operation; If tape transmission is used, the axis should be parallel to each other and the tape wheel should be aligned. If there are multiple units in the same computer room, between units,

There should be a distance of at least 800mm between the unit and the wall. The suction pipe of the water pump must be well sealed, and bends and gate valves should be minimized as much as possible. When filling and diverting water, the air should be completely discharged. During operation, there should be no accumulation of air in the pipe, and the suction pipe should be slightly upward

The inclined connection with the water pump inlet should have a certain submergence depth at the inlet. The reserved holes on the foundation of the water pump should be poured according to the size of the water pump.

2. Analysis and Handling Methods of Common Malfunctions in Water Pumps

Different types of water pumps have different forms of malfunction, but in summary, they share the following common characteristics.

(1) Insufficient traffic

Cause: Insufficient flow of the water pump is mainly caused by leakage of the suction pipe and the bottom valve; Water inlet blockage; Insufficient water inlet depth of the bottom valve; The speed of the water pump is too low; Excessive wear of the sealing ring or impeller; Excessive water absorption height, etc.

Solution: Check the suction pipe and bottom valve, block the gas leakage source; Clean up the silt or blockages at the inlet; The inlet depth of the bottom valve must be greater than 1.5 times the diameter of the inlet pipe, and the inlet depth of the bottom valve should be increased; Check the power supply voltage,

Increase the speed of the water pump and replace the sealing ring or impeller; Lower the installation position of the water pump or replace the high head water pump.

(2) Excessive power consumption

Cause: The water pump speed is too high; The main shaft of the water pump is bent or the main shaft of the water pump is not concentric or parallel to the main shaft of the motor; The selected water pump has an inappropriate head; The water pump sucks in sediment or has blockages; Damage to motor ball bearings, etc.

Solution: Check the circuit voltage and reduce the speed of the water pump; Correct the main shaft of the water pump or adjust the relative position between the water pump and the motor; Select a water pump with appropriate head; Clean up sediment or blockages; Replace the ball bearings of the motor.

(3) Severe vibration or noise generated by the pump body

Cause: Poor installation of water pump or high installation of water pump; Motor ball bearings are damaged; The main shaft of the water pump is bent or not concentric or parallel with the main shaft of the motor.

Solution: Install the water pump steadily or lower the installation height of the water pump; Replace the motor ball bearings; Correct the bent water pump spindle or adjust the relative position between the water pump and the motor.

(4) Overheating of transmission shaft or motor bearings

Causes: Lack of lubricating oil or bearing rupture, etc.

Solution: Add lubricating oil or replace bearings.

(5) The water pump is not producing water

Cause: The pump body and suction pipe are not fully filled with water; The dynamic water level is lower than the water pump filter pipe; Broken suction pipe, etc.

Solution: Eliminate the malfunction of the bottom valve and fill the water intake with water; Lower the installation position of the water pump to keep the filter pipe below the dynamic water level, or wait for the dynamic water level to rise before pumping water from the filter pipe; Repair or replace the suction pipe