Screw vacuum pump is a kind of suction and exhaust equipment which uses a pair of screw to make synchronous high-speed reverse rotation in the pump shell. It is an updated product of oil-sealed vacuum pump. It can extract gas containing a large amount of water vapor and a small amount of dust. It has been widely used in major pharmaceutical and chemical enterprises in China.
Application of Screw Vacuum Pump
After fine dynamic balance correction, the two screw rods are supported by bearings and installed in the pump housing. There is a certain gap between the screw and the screw. Therefore, when the pump works, there is no friction between them, running smoothly, low noise and no need for lubricating oil in the working chamber. Therefore, the dry screw pump can extract gas containing a large amount of water vapor and a small amount of dust with higher limit vacuum and lower power consumption. It has the advantages of energy saving and maintenance-free. It is an updated product of oil-sealed vacuum pump.
Advantages of Screw Vacuum Pump
At present, the development of various vacuum pumps is more and more affected by the vacuum applications. The general vacuum system can not meet the requirements of clean, oil-free and corrosion-resistant. Therefore, in recent years, the market demand for dry vacuum pumps is very large. The vacuum products have been updated. A large number of oil-free vacuum systems have been replaced by oil-free and clean vacuum systems. Almost every large vacuum company in foreign countries produces various types of dry vacuum pumps. Screw vacuum pumps are non-contact dry pumps. They are ideal pumps in the early 1990s. They are widely used because of their wide pumping speed range, simple and compact structure, friction-free components of the pumping chamber, long service life, low energy consumption and no oil pollution.
Because of its superior performance, dry screw vacuum unit has become the preferred vacuum acquisition equipment in microelectronics, semiconductors, pharmaceuticals, precision processing and other industries in Europe, America and Japan. On the basis of screw compressor, Japan has developed the multi-head rotor profile of vacuum pump and put it into the market very early. Several German vacuum equipment companies have gradually developed rotor profiles with equal pitch and variable pitch, and have done a lot of research on the cooling of rotor and body. In 2008, Chinese enterprises also put the production of screw vacuum pump into batch production (Zibo Dry Vacuum Pump Co., Ltd.), which has been well applied in chemical and pharmaceutical industries.
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