How does nikuni liquid ring vacuum pump use liquid ring to achieve vacuum suction?
Publish Time: 2025-01-02
Nikuni liquid ring vacuum pump is a widely used device in industrial applications. Its core working principle is to use liquid ring to achieve vacuum suction. This mechanism is not only unique but also efficient, which makes it occupy an important position in various processes.
The main structure of liquid ring vacuum pump usually consists of casing and impeller. There is a chamber in the casing that fits closely with the impeller, and an inlet and an outlet are provided at one end of the chamber. These two ports are connected to the outside world respectively, forming a flow path for the gas. When the liquid ring vacuum pump starts working, the working liquid (such as water or other process-compatible liquid) is injected into the pump body and forms a rotating liquid ring under the rotation of the impeller.
This liquid ring plays a vital role. On the one hand, it acts as a sealing barrier, effectively preventing the outside gas from entering the chamber again, thereby ensuring the formation of a vacuum environment. On the other hand, as the impeller continues to rotate, the liquid ring constantly changes shape in the pump body, forming a series of small chambers. These small chambers gradually increase in size during the first half of the impeller's rotation, and the gas is sucked into them; while during the second half of the rotation, the small chambers gradually decrease, the gas is compressed, and finally discharged from the pump through the exhaust port.
In this process, the liquid ring not only transfers energy, but also plays a role in cooling the gas. The compression heat of the gas is dissipated into the working liquid, which helps to maintain the stable operation of the pump body. At the same time, since the working liquid does not react chemically with the gas and does not dissolve in the gas, the efficiency and reliability of the vacuum suction process are ensured.
This working principle of the nikuni liquid ring vacuum pump gives it many advantages. For example, its structure is simple, easy to maintain, and it can operate stably in various harsh industrial environments. In addition, since the working liquid is circulated in the pump body, the pollution to the environment is greatly reduced. At the same time, the liquid ring vacuum pump can also handle media containing solid particles, corrosive or explosive gases, making it widely used in many specific industrial fields.
However, it is worth noting that the liquid ring vacuum pump also has some limitations. For example, its pumping speed is relatively low and it cannot achieve very high vacuum levels. Therefore, in practical applications, it is usually necessary to select the appropriate vacuum pump type according to specific needs, or to combine the liquid ring vacuum pump with other types of vacuum pumps to achieve a more efficient vacuum extraction process.
In summary, Nikuni liquid ring vacuum pump achieves efficient and reliable vacuum suction process through ingenious liquid ring design, providing strong support for various industrial applications.
