Views: 0 Author: katreenipump Publish Time: 2023-03-22 Origin: Site
What is the impact of different impellers on the water pump
1. Runner type impeller
The runner impeller is a curved runner that flows from the inlet to the outlet. Because this impeller has excellent anti clogging performance.
-Suitable for conveying liquids containing large particle impurities or long fibers.
-Disadvantages: Resistance to cavitation is weaker than other forms of cavitation.
2. Blade impeller
The semi open and open impellers in vane impellers are easy to cast,
facilitate maintenance and cleaning of clogged impurities during transportation.
The disadvantage is that during transportation,
solid particles are worn and the gap between the pressurized water chamber wall and the blade becomes larger,
which reduces the operating efficiency of the pump.
Moreover, due to the change in the gap, the stability of the liquid flow state in the flow path is damaged, leading to pump vibration.
This type of impeller is not easy to transport media containing large particles and long fibers.
The closed impeller pump has a small axial thrust, can operate stably for a long time, and has high operating efficiency.
However, closed impellers are easy to wrap and are not easy to transport sewage media containing large particles or long fibers.
3. Spiral centrifugal impeller
The spiral centrifugal impeller has twisted blades that extend axially from the suction port on the tapered hub.
The conveyed liquid will not impact any part of the pump when flowing through the blades, so it will not damage the pump or the conveyed liquid.
Due to spiral propulsion, the passage of suspended particles is strong,
so this type of impeller pump is suitable for pumping media containing large particles and long fibers.
4. Swirl impeller
The swirling impeller retracts all or part of the impeller into the flow path of the pressure chamber, with good anti blocking performance.
The movement of particles in the water pressure chamber is driven by eddy currents generated by the rotation of the impeller.
The motion of the suspended particles themselves does not generate energy, which is exchanged with the liquid in the flow path.
During the flow process, suspended particles or long fibers do not come into contact with worn blades,
which are less worn and do not increase clearance due to wear. It is suitable for pumping media containing large particles and long fibers.