Vacuum pump is the key equipment in the process of vacuum drying. The selection of vacuum pump type should consider whether it is suitable for the field production process.
The power transformer drying process is actually a dehumidification process, there is a large amount of water vapor to vent, so the selection of the former pump to be able to withstand the higher partial pressure of water vapor, such as the use of rotary vane pump or water ring pump.
Vacuum system is composed of vacuum chamber, vacuum pump or vacuum unit, vacuum pipe, vacuum valve, collector and other vacuum components, electrical control system, etc. It is widely used in electronic semiconductor industry, photoelectric backlight module, mechanical processing and other industries. Vacuum system is usually composed of several vacuum pumps, according to their characteristics in different areas play a role.