Do you know how to solve the pump cavitation situation? Let’s follow the editor of Г A3-52Water pump to have a simple understanding!

Cavitation phenomenon is: when the pump suction vacuum is greater than the allowable suction vacuum, cavitation occurs. It mainly occurs at the outer edge of the impeller blade and cover, the volute or the guide wheel, and does not occur at the entrance of the blade. For example, when the flow rate is greater than the design flow rate, it occurs when the blade inlet is close to the front surface of the blade of the front cover. When the pressure at the inlet of the impeller drops to the saturated vapor pressure of the delivered liquid at the working temperature, the liquid will partially vaporize, and the generated bubbles will follow the liquid from the low pressure zone to the high pressure zone. In the high pressure zone, the bubbles will shrink and condense sharply. The surrounding liquid rushes to the space occupied by the original bubble at a higher speed, generating a high-intensity shock wave, impacting the impeller and pump casing, causing noise and causing vibration. Due to the repeated impact of long-term impact and the chemical corrosion of the trace dissolved oxygen in the liquid, spots and cracks appear on the local surface of the impeller, and even spongy damage. The unique mechanical properties, wear resistance, anti-cavitation performance, and corrosion resistance of carbon nano-polymer materials can be used to protect the casing and impeller of the circulating water pump from erosion and cavitation, increase the service life of the pump, and improve the pump efficiency at the same time. Sandblast the water pump body, then apply special primer, and then apply a layer of wear-resistant material, and then apply a layer of anti-cavitation and improve pump efficiency materials to complete the repair. After the carbon nano material is cured, its hardness and wear resistance can reach the wear resistance of silicon steel and manganese steel, which greatly improves the service life of the water pump.
In summary, the editor of Г A3-52Water pump tells: a brief introduction to the relevant knowledge of water pump cavitation.