1. Replacement, the selection of parameters and the actual operating conditions close to the centrifugal pump to ensure that the replacement of the pump is always running in an efficient state. We made a centrifugal pump before and after the replacement efficiency comparison experiments show that the replacement of inefficient, high consumption centrifugal pump, pump efficiency can be increased by about 10%. 2. Frequency energy-saving technologies. On the design parameters greater than the actual operating conditions of centrifugal pumps, installation of frequency control device, always running in the high-efficiency zone. 3. Promote new energy-saving products such as high-efficiency and energy-saving permanent magnet speed regulating motor and dual-power motor on the main centrifugal pump. 4. Centrifugal pump choice. Selection of new pump, the pump should be selected large manufacturers to ensure high efficiency centrifugal pumps. Centrifugal pump maintenance. (1) Check and adjust the shaft end seal of the centrifugal pump often to reduce the volume loss; (2) Overhaul and restore the pump efficiency after the centrifugal pump has been operated for 10,000 hours; (3) Promote the application of corrugation Tube sealing technology, the complete elimination of centrifugal pump leakage, improve volumetric efficiency. 6. Regularly clean the filter cylinder, check the pipeline connection, to ensure that the centrifugal pump into the fluid pipeline. 7. In strict accordance with the centrifugal pump operating procedures, pump the pump to open the previous one, open the inlet valve, close the outlet valve, exhaust venting, check the pump inlet pressure meets the requirements. Prevent cavitation of the pump from occurring due to low fluid pressure and insufficient flow rate. 8. When a centrifugal pump is used to pump a slurry flow of liquid containing large, medium and small sizes of material, the liquid is tangentially injected into the cylindrical chamber to form a swirling flow and a portion of the liquid is tangentially directed from the Chamber; injecting the slurry axially into the chamber, the vortex separating the oversized material from the rest of the slurry and liquid; axially removing the remaining slurry and liquid from the chamber and injecting it into the inlet of the centrifugal pump ; Utilizing the material exiting from the centrifugal pump as the ejection liquid forming the vortex to reduce the wear on the centrifugal pump impeller and increase the efficiency of the centrifugal pump. 9. A method of reducing wear of a centrifugal pump impeller and increasing the efficiency of a centrifugal pump when the centrifugal pump is used to pump a slurry stream containing large to small-sized liquid in a liquid, characterized in that it comprises: a. Forming a vortex into the vortex chamber and tangentially removing a portion of the liquid from the chamber; b injecting the slurry axially into the chamber, the vortex separating the large size of the material from the remaining slurry and liquid; c The remaining slurry and liquid are axially removed from the chamber and injected into the inlet of a centrifugal pump; d the material pumped out of the centrifugal pump is used as the ejection liquid forming the vortex flow; therefore, the large-sized The material is discharged toward the outer circumference of the vortex flow so that medium and small size materials and liquids are sprayed into the centrifugal pump thereby reducing the wear of the impeller and allowing the pump to operate at a high speed and hence the efficiency is improved. 10. Pumps on a regular basis for the pump test, pump low pump group, to find out the reasons in time to take appropriate measures to be resolved.
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