What Is The Structure of A Centrifugal Pump?

1. The impeller is the core part of the centrifugal pump, which has a high speed and a large output.

2. The pump body is also called the pump shell, which is the main body of the water pump. It plays a supporting and fixing role and is connected to the bracket for installing the bearing.

3. The function of the pump shaft is to connect with the motor through the coupling and transmit the torque of the motor to the impeller, so it is the main component for transmitting mechanical energy.

4. The sealing ring is also called the leakage reduction ring.

5. The stuffing box is mainly composed of stuffing, which prevents the water flow in the pump from flowing to the outside and does not allow the outside air to enter the pump. Always keep the vacuum in the water pump! When the pump shaft and the stuffing generate heat by friction, the water seal pipe must be used to inject water into the water seal ring to cool the stuffing.

6. Axial force balancing device. During the operation of the centrifugal pump, the liquid enters the impeller under low pressure and flows out under high pressure, causing unequal pressures on both sides of the impeller. This generates an axial thrust pointing toward the inlet, which can cause axial movement of the rotor, resulting in wear and vibration. Therefore, an axial thrust bearing should be installed to balance the axial force.