Vacuum pump
First, what is a vacuum pump
Vacuum pump refers to a device or equipment that uses mechanical, physical, chemical, or physical chemical methods to pump air from the pumped container to obtain a vacuum. Generally speaking, a vacuum pump is a device that uses various methods to improve, generate and maintain a vacuum in a closed space. According to the working principle of vacuum pumps, vacuum pumps can basically be divided into two types, namely gas capture pumps and gas transmission pumps. It is widely used in metallurgy, chemical, food, electronic coating and other industries. With the development of vacuum applications, many types of vacuum pumps have developed, with pumping speeds ranging from a few tenths of a liter per second to hundreds of thousands and millions of liters per second. In order to facilitate the use and the needs of various vacuum processes, sometimes various vacuum pumps are combined according to their performance requirements and used in the form of a unit type.
Second, what are the characteristics of the vacuum pump
一、A larger pumping speed in a wider pressure range
二、The rotor has good geometric symmetry, so the vibration is small and the operation is stable. There are gaps between the rotors and between the rotor and the shell, no lubrication is required, and the friction loss is small, which can greatly reduce the driving power and achieve a higher speed;
三、There is no need for oil sealing and lubrication in the pump cavity, which can reduce the pollution of oil vapor to the vacuum system;
四、There is no compression in the pump cavity and no exhaust valve. The structure is simple and compact, and it is not sensitive to dust and water vapor in the exhausted gas;
五、The compression is relatively low, and the hydrogen pumping effect is poor;
六、The surface of the rotor is a curved cylinder with a more complicated shape, which is difficult to process and inspect.
A vacuum pump is a device that uses the principles of physics and chemistry to maintain a vacuum, and the effect is good when used. Through the introduction of Yazlad, everyone must have known the characteristics of vacuum pumps.