Shanxi mine pump manufacturers believe that everyone knows how harmful cavitation is to Shanxi mine pump. It is caused by the vaporization of the fluid, during which the net pressure is lower than the vapor pressure. The recovery of downstream pressure caused the steam bubble to suddenly implode, causing the impeller to indicate a pit. Cavitation may have a huge impact, so that the performance of Shanxi mine pump gradually reduced, until the complete failure.
In the past, professional Shanxi mine pump operators often detect cavitation by identifying the characteristics of gravel noise. Recent advances in vibration research have shown that it is also possible to use harmonic (FFT) techniques to detect the occurrence of cavitation, thus enabling automatic diagnosis. The traditional way to solve this problem is to leave a certain static safety margin on the basis of the necessary NPSH (source original equipment manufacturer). An effective cavitation monitoring method is to measure the pressure, temperature and flow rate closest to the pump suction point.
