The function of the vacuum pump is to remove gas molecules from the vacuum chamber and reduce the gas pressure in the vacuum chamber to achieve the required vacuum degree. Generally speaking, there is a large range from atmosphere to extremely high vacuum, and so far there is no vacuum system that can cover this range.
Therefore, in order to achieve the process indicators, work efficiency and equipment working life requirements of different products, different vacuum sections need to choose different vacuum system configurations.
In order to achieve the best configuration, when choosing a vacuum system, the following points should be considered when selecting a vacuum pump:
1. The ultimate pressure of the vacuum pump should meet the working pressure of the process. The ultimate pressure of the pump is usually chosen to be about an order of magnitude lower than the process requirements.
2. Each pump has a certain working pressure range, so the working point of the pump should be selected within this range, and it cannot be allowed to work for a long time outside the allowable working pressure.
3. Under its working pressure, the vacuum pump should be able to remove all the gas generated in the process of the vacuum equipment.
