How can the centrifugal pump more energy saving

In the production or selection, how to make pump energy saving and how to make the centrifugal pump energy saving measures are mainly the following.

1. Select suitable pipeline centrifugal pump models correctly calculate the pipeline flow and head, and make the selected pump rated flow and head is equal to or slightly larger than the pipeline flow and head of the centrifugal pump working in high efficient region. The greater the flow and head of the centrifugal pump, the lower the efficiency of the work.

2. Reduce the pipeline resistance, reduce the pipeline to the head. Pipeline resistance drops, then the pipeline pump head also decreased, thereby reducing the power consumption of the pump.

3. Improved impeller structure, improve the working capacity of impeller to improve pump structure, reduce the energy loss of fluid in centrifugal pump. The purpose of the improved impeller structure is to improve the flow state of the liquid in the impeller, so that the flow stability of the liquid is stable, and the impact loss and friction loss are reduced to a minimum. In theory, the more blade impeller, blade thickness is small, the work efficiency of the impeller is liquid is also higher. But leaves more, the liquid in the impeller flow channel area is narrow, fluid through the impeller resistance more: smaller leaf thickness was, the lower the strength of blade, the more easily damaged, and more difficult to manufacture. The solution to this problem is: in the case of normal use, we must ensure that there is sufficient flow channel area in the impeller, but also the appropriate increase in the number of blades.

One of the reasons for the leakage of centrifugal pump and the pump shell surface roughness is caused by energy loss. To this end, it is time to replace the excessive wear of the population seal ring in order to reduce the internal leakage. Polishing the runner, smooth flow of the flow channel, reducing the hydraulic loss of the pump. Removal of sand, stone, cast iron and other debris blockage.

4. Reduce the diameter of impeller, Sheng reduce the rotational speed of the impeller when the pump flow and head of the surplus amount is larger, and there is no smaller more suitable pump available, with turning impeller, reducing the outside diameter of the impeller or ways to reduce the speed of impeller to reduce the pump shaft power, reduce the power consumption. After the outside diameter of the impeller is cut, or the impeller speed is reduced, the pump shaft power is down very fast.

It should be put forward, the impeller cut or reduce speed, due to the shaft power decreases, it should be replaced by a smaller power motor. Otherwise, it is difficult to achieve the purpose of energy saving.