The pump precision impeller is a rotating part of the pump, mainly used in centrifugal pumps. It is mainly made of metal and rubber, very wear-resistant and corrosion-resistant. We can also divide it into four types according to its structure.
The channel pump precision impeller is a curved flow channel from the inlet to the outlet. This type of impeller is mainly used to transport liquids containing large particles or long fibers. It has a very good anti-blocking function, but it should also be noted that its anti-steam corrosion effect is weaker than other pump precision impellers.
The spiral centrifugal pump precision impeller has twisted blades and extends axially from the suction port on the conical wheel body. The transported liquid will not hit the parts inside the pump when it flows through the blades, so its working process will not affect the water pump, nor will it damage the transported liquid. And due to the propulsion of the spiral, its suspended particles have strong permeability, so this impeller is suitable for pumping media with large particles.
The semi-open and open impellers in the precision impeller of vane pump are very convenient to cast, and easy to maintain and clean the impurities that block during the transportation process. However, the gap between the inner wall of the pressure chamber and the blades increases due to the abrasion of solid particles during transportation, which will reduce the operating efficiency of the water pump. In addition, the increase in the gap will cause the stability of the flow state of the liquid in the flow channel to be destroyed, causing the pump to vibrate. This type of impeller is not convenient for conveying media containing large particles and long fibers.
The vortex impeller is a completely or partially retracted impeller to the flow channel of the pressure chamber, which has good anti-clogging performance. The particles flow in the water pressure chamber and move under the impeller's rotation. The movement of suspended particles does not generate energy itself, but mainly relies on the exchange of energy with the liquid in the flow channel. During the flow process, suspended particles or long fibers do not contact the worn blades, the blade wear is relatively light, and there is no gap increase due to abrasion. It is suitable for pumping media containing large particles and long fibers.
