Double-stage tandem Roots blower is a kind of machine composed of two Roots blowers connected in series. Each blower has two independent three-blade rotors with opposite steering, each rotor is supported by two bearings, and the relative positions of the two rotors are always maintained with the help of two high-precision synchronized spur gears, in which the relative positions of the two rotors are always kept constant, and a certain clearance is maintained between the rotors as well as between the rotors and the box, so that there is no contact rotation. The rotors are driven by the synchronized gears in the side case, and with the help of the "meshing" of the two rotors, the air inlet and outlet are separated from each other, thus completing the process of transferring the enclosed gas from the inhalation side to the exhalation side of the case and the rotors.

Characteristics of double-stage tandem Roots blowers:

1. The impeller and shaft are of integral structure and there is no wear and tear on the impeller, so the performance of the blower remains unchanged for a long period of time and can be operated continuously.

2. The selection of bearings is reasonable, the service life of each bearing is uniform, and the air blower oil seal is made of imported fluorine rubber material, which is high temperature resistant and wear resistant, thus the air blower has a long service life and high reliability.

3. Introduced technology, imported key parts processing center processing, host parts with high precision, long service life, high reliability.

4. Compulsory gas transmission, flow rate with the pressure change is small, the outlet pressure is determined by the back pressure, and the gas conveyed is not contaminated by oil.

5. Small air blower vibration and low noise due to the three-blade rotor structure form and reasonable structure at the air inlet and outlet in the shell. Pressure and temperature control to provide unit operation protection.

6. Double-stage tandem connection, high-efficiency intermediate cooling, high pressure, low energy consumption, more stable and reliable operation.

The use of two-stage tandem Roots blowers:

Application:Widely used in pneumatic conveying system in ceramics, building materials, paper making, electricity, petroleum, chemical, textile, aquaculture, sewage treatment, food and other industries.

Conveying medium: used to convey air and various neutral gases. However, it is not suitable for conveying flammable, explosive, toxic and strong corrosive gases.

Special Precautions for Use:

Double-stage tandem Roots blower due to its special structure, in the use of the process of special attention: double-stage Roots blower on its internal clearance requirements are high, in the overhaul and routine maintenance process, if the gap adjustment check is not in place, it may lead to the rotor and the wall plate friction, serious cases caused by the fan rotor clasping or even air blower scrap.

Therefore, the need to purchase Roots blower need to develop a rigorous work inspection program, daily inspection of the machine to ensure that the Roots blower can be safe and stable operation.