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Dry Screw Vacuum Pump Application

The dry screw vacuum pump manufactured by Shanghai Vacuum Pump Factory is a suction equipment which uses a pair of screw to make synchronous high-speed reverse rotation in the pump housing and produces the function of suction and exhaust.


Vacuum pump characteristics:


(1) High reliability. The screw dry vacuum pump has few parts and no vulnerable parts, so it runs reliably and has a long service life.


(2) Easy operation and maintenance.


(3) Good dynamic balance. The screw dry vacuum pump has no unbalanced inertia force, and the machine can run smoothly and at high speed.


(4) Strong adaptability. The screw dry vacuum pump has the characteristics of forced gas transmission. It can maintain a high pumping speed in a wide range of pressure, and the exhaust volume is almost unaffected by the exhaust pressure.


(5) Multiphase mixed transportation. Because there is a small gap between the tooth surfaces of the rotor of the screw dry vacuum pump, it can remove corrosive, toxic, dust, condensable vapor and other gases.

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Dry screw vacuum pump application:


Screw dry vacuum pumps are widely used in electronics, nuclear energy, chemical industry, medicine, food industry and other fields. In the semiconductor industry, it is used to produce chips, liquid crystal displays, etching and CVD process of PLASMA. In nuclear industry, it is used for vacuum acquisition in nuclear reactor and nuclear industry; in chemical industry, it is used for vacuum distillation and solvent extraction to recover solvents efficiently; in fatty acid production, it is used to eliminate water pollution and remove obstructions in ejectors; in pharmaceutical industry, it is used to recover pharmaceutical liquid and drug intermediates, to provide clean sterile conditions for the production of artificial organs, and to recover gas disinfectants; in food industry, it is used for perfume. Flavor concentrate, food packaging and so on. It has a wide range of applications. Specifically as follows:


Drying treatment, vacuum distillation, molecular distillation, solvent recovery, oil and gas recovery, factory general vacuum, electronics, vacuum coating, aviation, nuclear industry can extract ordinary air, flammable and explosive gases, corrosive gases, especially suitable for the requirements of clean vacuum environment. Specific applications: vacuum coating, vacuum distillation, vacuum drying, pulling single crystal, special gas manufacturing, ion etching, etc.


Dry vacuum pumps are used in textile and metallurgical industries such as spandex, aramid fibers, fibers, metallurgy, etc. Specific applications: vacuum defoaming, VOD vacuum oxygen blowing decarbonization, etc.


One of them represents the semiconductor industry, which requires the vacuum pump to return to zero in the pumping space to protect the workpiece from pollution. The requirements for vacuum systems used in the semiconductor industry can be divided into three levels. Under clean conditions, only dry air or air containing a small amount of water vapor is pumped; under medium conditions, reaction gas is pumped out without solid particles; under adverse conditions, chemical reactants (toxic or even carcinogenic) and solid particles are pumped out.


Another is the petrochemical industry, which requires a large number of vacuum pumps to remove condensable gases, corrosive gases, toxic gases or gases containing dust. Screw dry vacuum pump is widely used in electronics, nuclear power, chemical industry, medicine, food industry and other fields. In the semiconductor industry for the production of chips, LCD manufacturing, etching, production of PLASMA CVD process.


It is used for vacuum collection in nuclear reactor and nuclear industry; for vacuum distillation and solvent extraction in chemical industry to effectively recover solvents; for eliminating water pollution and blockage in ejector in fatty acid production; for recovering pharmaceutical liquids and pharmaceutical intermediates in pharmaceutical industry to provide clean and sterile conditions for the production of artificial organs. Recovery of gas disinfectants; food industry for spices, concentrated flavors, food packaging and so on.




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