1. Influence on medium
1, polyacrylamide is a water-soluble linear polymer material. Therefore, when centrifugal pump blades operate at high speed, a larger centrifugal force will break the polymer chain.
The bad, and the production of heat will also destroy the structure of its polymer chain in varying degrees, and ultimately can not achieve the effect of adding drug treatment.
2, the flow instability will change with the change of the pipeline, certain head corresponds to a certain flow, and the flow rate will change with the lift (almost inversely proportional).
Department. The volume pump will not change with the flow rate to change the lift, relatively stable. Health level self-priming pump
3, can not adjust the size of the flow, can not control its size with the size of the amount of medicine, and also to varying degrees of loss of drugs.
Two. Problems arising from centrifugal pumps (compared with volume pump and single screw pump)
1. Compared with the motor power, the energy consumption is larger.
2, the use efficiency is low. The theoretical efficiency of the ordinary centrifugal pump is 60-70%, compared with the volume pump (screw pump and metering pump, etc.) is 75%-90%.
3. The material with high concentration of polyacrylamide, which is conveyed by the centrifugal pump, produces a large cavitation erosion and damage to the medium and the pump.
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