Roots vacuum pump has a large pumping speed in a wide pressure range
The rotor has good geometric symmetry, so the vibration is small and the operation is smooth. There are gaps between the rotors and between the rotor and the shell. No lubrication is required, and the friction loss is small. The driving power can be greatly reduced, so that a higher speed can be achieved
. There is no need for oil sealing and lubrication in the pump chamber, which can reduce oil vapor. Contamination to the vacuum system of the Roots vacuum pump
There is no compression in the pump chamber and no exhaust valve. The structure is simple and compact. The Roots vacuum pump is insensitive to dust and water vapor in the pumped gas
. It has a low compression ratio and poor hydrogen pumping effect
. The rotor surface is a curved cylinder with a relatively complex shape. , processing and inspection are more difficult. Roots vacuum pumps have developed rapidly at home and abroad in recent years. It has been widely used in smelting, petrochemical, electrical, electronics and other industries.
The above content is a brief introduction to the structural characteristics of Roots vacuum pumps. Mastering this knowledge can help us solve many problems in future use.
Six major structural features of ZJP Roots vacuum pump