Roots blower principle:
is a positive displacement rotary blower. This compressor keeps the two rotor synchronous gears engaged at the shaft end of the rotor. Each rotor part is concave into the working volume and the surface of the cylinder wall. In the process of rotor rotation, it is far away from the air inlet. When it moves to the vents and vents, it is connected with the high-pressure air flow. The two rotors are in contact with each other and they rely on tightly controlled clearance seals to keep the exhaust gas free of oil pollution.
Roots blower features:
Its biggest characteristic is when the pressure is used in the allowable range, the allowable regulation flow rate change is very small, the pressure range is very wide, has the mandatory gas characteristic. Oil transfer. Simple structure, convenient maintenance, long service life, low vibration.
Vacuum pump. Due to periodic suction, exhaust and instantaneous constant compression air volume velocity and pressure pulsation, and can produce large aerodynamic noise. In addition, the clearance between rotor and cylinder can lead to gas leakage, which reduces efficiency. The displacement of roots blower is 0.15~150 m3 / min, and the rotation speed is 150~3000 RPM. Single stage compression ratio is usually less than 1.7, up to 2.1, can be used in series.
Roots blower Picture structure：