1 volume pump_Myrodia -liquid -by -volume cycle to transport liquid.

2. Leaves pump_writing the interaction of leaves and liquid to transport liquid.

Specific use of pump: Different uses of pumps, different transportation liquid media, different flow, and raising range. Of course, the structure type of the pump is different, and the materials are different. Civil engineering, construction system, agricultural water conservancy system, power station system, chemical system, petroleum industry system, mining metallurgical system, light industrial system, ship system

Erosion

At a certain temperature, the liquid is reduced to the pressure of the liquid at a certain temperature, and the liquid is generated by the liquid. This phenomenon of bubbles is called steam erosion. The air bubbles produced during the steam erosion are reduced to the high pressure place, and the volume is reduced to cause the crushing. This phenomenon that the bubble disappears in the liquid due to the rise in pressure is called steam erosion.

During the operation of the pump, if the local area of its overcurrent part (usually somewhere in the Imperial Imperial Pacific Entrance), for some reason, the absolute pressure of the pumping liquid is reduced to the fluid vaporization pressure at the time, and the liquid is at this time. Starting vaporization, a large amount of steam is generated to form air bubbles. When the liquid containing a large amount of air bubbles is forward through the high -pressure zone in the impeller, the high -pressure liquid around the bubbles causes the bubbles to narrow sharply or cracks. While the bubbles are condensed and ruptured, the liquid mass point fills the acupoint at a very high speed. At this moment, it has a strong water strike effect, and the impact stress on the metal surface with a high shock frequency can reach several hundred to thousands of atmospheric pressure. The impact frequency can reach tens of thousands of times per second, and the wall will be penetrated in severe cases.

The process of generating bubbles and bubbles in the pump causes the destruction of overcurrent parts to be damaged. After the water pump produces steam erosion, in addition to the destruction of overcurrent components, noise and vibration will produce noise, and the performance of the pump will decrease. In severe cases, the liquid in the pump will be interrupted.