Magnetic drive pump pumping bubbles indicate cavitation, if left unchecked will lead to the pump flow components are corroding, over time will affect the performance of the magnetic pump, the direct impact is caused by the decline in transport flow, so the need to timely check the cavitation causes and proper treatment, the common cause is the magnetic pump suction volume is not up to standard or improper selection caused by the details can be seen below.
Magnetic pump pumping bubble is a kind of cavitation phenomenon, cavitation is mainly caused by the pump area pressure is too low, liquid after vaporization to produce a large number of bubbles, these bubbles will move together with liquid to the high pressure area, then condensation burst. Because of the large number of bubbles and the high speed and frequency, the collapse of each bubble will cause a hydraulic impact on the pipe wall, which will wear through the pipe wall over time and also cause serious wear to other flow components. In addition, it should be noted that bubbles will not only produce high-frequency impact when they burst, but also produce a certain amount of heat, which will metallize the oxygen produced, causing chemical corrosion.
In the knowledge of the magnetic pump pumping bubbles belong to harm, pump personnel should have a clear understanding of its causes.
1. The flow fluctuates frequently during operation, resulting in vortices and deflections, resulting in bubbles. This need to ensure that the installation is stable, in the process of use to adjust the operating parameters according to the transport conditions, to ensure smooth operation, can not let the flow up and down;
2. There is air in the magnetic pump chamber, which will lead to vorticity after operation. It is recommended to exhaust the gas in the pump chamber before starting the pump.
3. If the installation height exceeds the standard, cavitation will occur if the suction volume is insufficient. In this state, the impeller will wear more and more, and the installation position needs to be adjusted again.
4, the transport medium temperature is too high, there will be cavitation, it is suggested that at the beginning of the selection according to the actual pump situation clear pump tolerance temperature, if conditions allow, try to reduce the temperature of the medium.
