Working principle of Roots vacuum pump
Apr 15, 2022| Working principle of Roots vacuum pump
Roots vacuum pump (referred to as roots pump) refers to the pump is equipped with two opposite direction synchronous rotation of the leaf rotor, rotor, and pump shell inner wall between the small gap without contact with a variable volume vacuum pump roots vacuum pump in petrochemical plastics pesticide turbine rotor dynamic balance Aerospace space simulation and other devices have been tested for long-term operation, so it should be vigorously promoted and applied in China. At The same time, it is also widely used in petroleum, chemical, metallurgy, textile, and other industrial vacuum pump accessories as vacuum pump mufflers, used for noise control of vacuum pump The roots vacuum Roots pump is a kind of vacuum pump without internal compression, usually, the compression ratio is very low, so the high school vacuum pump requires the front pump by a pair of blade rotor in the pump cavity synchronization Roots vacuum pump is a mechanical vacuum pump with a pair of synchronous high speed rotating sole shaped rotor. This pump can not be pumped separately. The front stage needs to be equipped with an oil seal water ring and other straight air Its structure and working principle is similar to a roots blower, the suction port and the vacuum container or vacuum system are connected to the main pumping pump between the rotor and rotor of the vacuum pump between the rotor and pump shell do not contact each other, the gap is generally 0.1~0.8 mm; Do not need oil lubrication rotor profile arc involute and cycloid involute rotor pump volume utilization rate is high, easy to ensure the processing accuracy, so rotor profile multi-involute Roots vacuum pump speed can be as high as 3450~4100 RPM; The pumping rate is 30-10000 l/s (1 l = 10-3.3 m); Limit vacuum: single-stage 6.5 102 pa, double stage 1 103 pa
Schematic
IKS PVD company, decorative coating machine, tools coating machine, DLC coating machine, optical coating machine, PVD vacuum coating line, the turn-key project is available. Contact us now, E-mail: iks.pvd@foxmail.com