Roots blower is used to blow air, roots vacuum pump is used to inhale. If steering, there must be positive and negative, roots vacuum pump can not work alone, need to connect the front stage pump, Roots fan can work alone.
Roots vacuum pump is generally in the form of vacuum unit, because the ordinary roots vacuum pump can not start and discharge directly to the atmosphere under atmospheric pressure and high pressure, so it needs to be equipped with a front stage pump.
The ordinary roots vacuum pump can be started only under the pressure of 6000pa or even lower, and the stable high pumping speed can be started at 1333pa-1pa.
Because roots vacuum pump has no internal compression characteristics, it can realize gas emission by external compression. Excessive pressure difference and high pressure will make the vacuum pump load too high, so that the rotor in the compression process generated too much heat can not be dissipated, there will be excessive expansion, resulting in the gap between the rotor and the pump cavity disappeared, and then it is stuck.
In order to solve this problem, roots vacuum pump uses cooling gas to directly cool the rotor to reduce the temperature of the rotor and the temperature difference between the rotor and the pump cavity, avoid excessive expansion of the rotor, and realize the operation under high pressure difference and high compression ratio. Therefore, it can be used alone under atmospheric pressure, or multiple sets can be connected in series to improve the vacuum degree.
(The article comes from the Internet. If reprinting is not allowed, please contact our company to delete it.)If possible, kindly suggest please your working industry/process, working pressure, working medium, etc. Given detailed request helps to gain better-matched customized solution. Thanks for your patience.
your request will be responsed within 3 hours, kindly pay attention to your email please.
