A vacuum pump is a device that generates, improves and maintains vacuum in a closed space by various methods. A vacuum pump can be defined as a device or device that uses mechanical, physical, chemical or physicochemical methods to extract gas from a vessel to obtain a vacuum. With the development of vacuum applications, many kinds of vacuum pumps have been developed, and their pumping speed has ranged from a few tenths of a liter per second to hundreds of thousands and millions of liters per second. The ultimate pressure (ultimate vacuum) ranges from coarse vacuum to extremely high vacuum above 10-12Pa.
The working principle of screw vacuum pump:
This screw air compressor working principle can be divided into three processes: suction, compression and exhaust. When the rotor rotates, each pair of teeth meshing with each other completes the same working cycle again. Now, a pair of teeth is used for illustration.
Suction process
The male rotor rotates counterclockwise, while the inner thread rotates clockwise. In the figure, the upper end of the rotor is the suction section and the lower end is the exhaust end.
Compression process
The end face is the exhaust end face. Here, the positive rotor rotates clockwise and the negative rotor rotates counterclockwise. In the figure, the upper end of the rotor is the suction section and the lower end is the exhaust end.
Exhaust process
In the exhaust process of the screw pump, the exhaust process begins after the volume between the teeth is connected to the exhaust port. With the continuous reduction of the volume between teeth, the gas with exhaust pressure is gradually discharged through the exhaust port.
Overall, the role of screw vacuum pump is still very large, and relatively speaking, the future prospects are also good, I believe that with the improvement of science and technology, the future of screw vacuum pump can also be improved.
The importance of regular maintenance of screw vacuum pump in our daily lives lies in:
It can reduce the chain damage of the equipment and extend the life of the equipment, that is, when a local part of the vacuum equipment is faulty, it can be found in time to reduce the unplanned shutdown caused by equipment failure.
Due to its systematic nature, pre-research of maintenance procedures can be conducted in advance, including the preparation of drawings, tools, lifting equipment, and other auxiliary materials, as well as the procurement of air compressor parts for sale; Once disintegrated, can be quickly repaired; Improve equipment reliability and reduce costly screw compressor maintenance costs caused by quick repairs due to unexpected equipment failures.
The surface of the working chamber and the screw rotor has anti-corrosion coating, which can adapt to harsh conditions.
