Air cooled roots vacuum pump

Various industries, such as aerospace, large-scale power equipment, petrochemical industry and its air separation, in order to achieve pollution-free vacuum to obtain the environment, the oil-free vacuum pumping system is required to pump more and more speed, such a large rate of pumping only multi-typhoon cold Roots vacuum pump or combined with ordinary Roots vacuum pump pumping system. Unification can be realized.

The air-cooled Roots vacuum pump and its pumping system have the advantages of high speed and small volume of ordinary Roots vacuum pump, and can start at any pressure and run at any pressure difference after equipped with suitable motor and heat exchanger. It is suitable for large load, short pumping time, coarse vacuum to high vacuum. The air-cooled Roots Vacuum Pump and the air-cooled Roots Vacuum Pump Unit composed of the air-cooled Roots Vacuum Pump have great noise during operation, especially the last and second stage air-cooled Roots Vacuum Pump in the combined pumping system, because of the large pressure difference, the exhaust port and both sides of the pump are in operation. When the high pressure gas at the air return port is mixed with the low pressure gas in the elementary volume, it will produce violent pressure pulsation, which will cause enormous air flow impact and strong aerodynamic noise. It will seriously interfere with people's physical and mental health in the ground simulation test and other engineering operations, and restrict this kind of oil-free vacuum pumping unit. On the other hand, it makes many industries feel helpless to choose the vacuum pump (or combination unit).

Existing dry vacuum pumps on the market, such as screw vacuum pumps, claw vacuum pumps and so on, can not be used as the front-stage pumps of combined units because of the limitation of the pump's own structure.