Shanghai vacuum pump cavitation occurs, how to solve

water ring vacuum pump often appear in the project. Cavitation phenomenon happens when its operation. Cavitation phenomenon can cause damage to vacuum pump equipment. Below is the equipment of the phenomenon of cavitation is introduced.

1, pressure suction area, pressure of water ring vacuum pump system, that is, the higher the vacuum degree of the pump system, the suction area of the higher vacuum degree.

2, when achieved when the vapor pressure of working fluid, can be thought of as working fluid steam completely filled with the studio. At this point, external suction pump capacity is close to zero, and pump cavitation phenomenon is serious.

3 approximates to the vapor pressure of liquid, pressure, liquid is more close to boiling.

4, at this point, the surface of the working fluid in the suction area, there are many bubbles happen because the working cavity of working fluid steam generation will be room for some of the working chamber, and and external pump suction capacity will reduce.

1 in the working process of the equipment, in the process of fluid transport, once the cavitation phenomenon occurring in pump, the impeller will be rapidly due to cavitation damage.

2, at work, its impeller are also in a mixture of water and gas at high speed, but at high pressure gas condensation.

3, when the low pressure liquid pressure is lower than the relative temperature of evaporating pressure, the liquid evaporated, and bubbling with liquid into high-pressure area division, liquid filling the original bubble around the space used for hydraulic impact. Happen, this kind of the expansion of the bubble phenomenon and division called cavitation phenomenon.

4, you need to use the liquid as working medium, each kind of liquid under certain temperature has a corresponding vapor pressure. Three, the difference between the cavitation

1, when the impeller entrance pressure saturated vapor pressure of liquid is equal to or lower than, it will evaporate and produce bubbles.

2, when the bubble flow to the high pressure and condensing again, produces the high partial pressure in the process of condensation, which would make the impeller from fatigue and the honeycomb or spongy, and will produce a lot of noise and strong vibration.

during the use of water ring vacuum pump, not only need to use operation according to the right steps. To adjust equipment in the production process. Only to do daily maintenance, can avoid to use found angry corrosion phenomenon.

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