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The working principle of vacuum pump
Vacuum pump basically can be divided into two types, namely gas capture pump and gas transfer pump. It is widely used in metallurgy, chemical industry, food, electronic coating and other industries.
Along with the vacuum application development, the vacuum pump type has developed many kinds, its pumping speed from several tenths of a liter per second to several hundred thousand, millions of liters per second. With vacuum technology in the field of production and scientific research to the requirements of the application scope of the pressure is more and more wide, mostly need consists of several common after extraction of vacuum pump vacuum extraction system can meet the requirements of production and scientific research process, because the vacuum application department involved in the work pressure range is very wide, so any one type of vacuum pump could not fully apply to all working pressure range, can only work according to the different pressure range and different work requirements, using different types of vacuum pump. In order to be convenient to use and meet the requirements of various vacuum processes, vacuum pumps are sometimes combined according to their performance requirements and applied in the form of units.
Commonly used vacuum pumps include dry screw vacuum pump, water ring pump, reciprocating pump, slide valve pump, rotary vane pump, roots pump and diffusion pump, etc., which are essential main pumps in the application of vacuum process in various industries of China's national economy. In recent years, with the continuous and rapid development of China's economy, the downstream application industry of vacuum pump has maintained a rapid growth momentum. At the same time, driven by the continuous expansion of vacuum pump application field and other factors, China's vacuum pump industry has achieved a sustained and stable rapid development.