Centrifugal pump is a kind of vane pump, relying on the rotating impeller in the rotation process, due to the interaction of the blade and the liquid, the blade will pass the mechanical energy to the liquid, so that the pressure of the liquid can increase, to achieve the purpose of conveying the liquid, the role of the rotating impeller on the liquid the mechanical energy of the prime mover is transferred to the liquid. What are the energy saving measures for centrifugal pumps?
1. Improve the efficiency of centrifugal pump
The first step is to compare the selection scheme of various suppliers in the selection, and choose the scheme with high efficiency as far as possible under the premise of considering the cost performance;
Step two, Certain professional personnel are dispatched to the factory to supervise the manufacturing quality of key components that affect the efficiency of the pump, such as impeller, pump body, pump cover, flow guide (vertical long-axis pump), etc., especially the quality control of the impeller's airfoil, outlet Angle, blade division, flow channel shape, finish, etc., so that the delivered products are highly efficient products under the current production conditions.
The third step, in the installation and commissioning process of the production site, it is necessary to ensure that the foundation of the pump is solid, and the drive is well aligned, the front and rear valve switches are flexible, the pipeline layout design is reasonable, the field control is safe and feasible, and the operation monitoring instruments are complete and accurate to ensure that the operation process of the pump can be monitored in real time.
The fourth step is to pay attention to the spot inspection of the equipment in the long-term operation of the pump, and immediately report the abnormal situation. In the normal minor repair and overhaul cycle, the wearing parts should be checked and replaced to ensure the long-term efficient and safe operation of the pump.
2. Optimize existing pumps
By adjusting the impeller diameter and pump speed, the flow head and shaft power of the pump will be affected, but the efficiency curve will not be affected, so that the pump can work in the high efficiency zone. The above adjustment flow head is limited to a certain range, if the working condition changes too much, the original pump may have to consider the modification.