liquid ring vacuum pump continuous pumping principle

With the continuous application of vacuum technology, liquid ring vacuum pump has been paid attention to, especially in industrial production. Everyone who has used this equipment knows that it has the characteristics of continuous pumping, so how can this be achieved?

The impeller is eccentrically installed in the pump body. When the impeller rotates, the water entering the liquid ring vacuum pump body is thrown around by the impeller. Because of the centrifugal force, the water forms a closed water ring with the same thickness as the shape of the pump chamber. The upper inner surface of the water ring is just tangent to the hub of the impeller, and the lower inner surface of the water ring is in contact with the top of the blade. At this time, a one-month conodont space is formed between the hub and the water ring of the impeller, which is divided into several small cavities equal to the number of blades by the impeller. If the starting point is 0 degrees above the impeller, the volume of the small chamber gradually increases from small to large and the pressure decreases continuously when the impeller rotates 180 degrees before rotation, and is connected with the suction port on the suction and exhaust disc. When the pressure in the small chamber space is lower than the pressure in the sucked container, the sucked gas is continuously pumped according to the principle of gas pressure balance. It was pumped into a small cavity and was in the process of inhalation. When the suction is completed, it is isolated from the suction port. From section II-II to section III-III, the volume of the small chamber is gradually decreasing, and the pressure is constantly increasing. At this time, it is in the process of compression. When the compressed gas reaches the exhaust pressure ahead of time, it is exhausted from the auxiliary exhaust valve ahead of time. From section III-III to I-I, the volume of the small chamber connected with the exhaust port further reduces the pressure and further increases. When the pressure of the gas is greater than the exhaust pressure, the compressed gas is discharged from the exhaust port. During the continuous operation of the pump, the process of suction, compression and exhaust is continuously carried out, thus achieving continuity. The purpose of aspiration.

Liquid Ring compressor

Dry Vacuum Pumps