The danger of Air and Bubbles.

YASER RASHWAN

Mechanical Engineer

Reference:

Garner, D. (2010, April 15) The danger of Air and Bubbles. From http://www.chemie.de/articles/e/103550/

Summary:

One of the most serious problems faced by the hydraulic and lubrication oil system is the air and bubbles. The air usually enters from the suction of the pumps; it causes foaming inside the system, which indicates the wrong reading of the level. Another problem is the cavitations, which happens in the pumps. It happens when the pressure of the liquid is less than the gas inside it. That leads to mechanical failure, which causes the damage to the equipment. Therefore should watch the entrance of the pump and be sure it is safe; also, it should be changed if necessary.

Reaction:

This is a common problem in the most industries; therefore, every company is trying to reduce this problem as much as possible. For example, they install different types of sensors to keep the equipment safe. And for the foaming, they put antifoam, depending on the kind of liquid, in the system. Cavitations and foaming lead to stopping the whole plant; because of this, operators in the plant should take care to avoid these problems, by taking readings, watching the levels, recognizing any abnormal sounds. The cavitations also cause serious problems like fire and explosion.