Introduction to Roots blower

The Roots blower is a positive displacement fan that delivers air in proportion to the number of revolutions. There is always a small gap between the impeller end face and the front and rear end covers of the fan, as well as between the fan impellers. Under the drive of the synchronous gear, the air is transported from the fan inlet along the inner wall of the housing to the exhaust side. The inner cavity of the fan does not require lubricating oil, which is efficient, energy-saving, high-precision, long service life, compact structure, small volume, light weight, easy to use, and widely used in various fields such as petrochemicals, building materials, electricity, smelting, fertilizers, mines, ports, textiles, food, papermaking, aquaculture and sewage treatment, environmental protection industry, etc. It is mostly used to transport air and can also be used to transport flammable, explosive and corrosive gases such as gas, hydrogen, acetylene, carbon dioxide, etc.

Advantages and characteristics of Roots blower

1. Low noise, the fan inlet and exhaust ports adopt a spiral shape, allowing the intake and exhaust processes to be sequentially cut in the direction of the spiral line, avoiding the pulsating noise and vibration that may occur instantly when old style fans exhaust. This series uses an impedance composite muffler to further reduce noise.

2. High adiabatic efficiency and volumetric efficiency, thus saving energy. The fan rotor adopts advanced composite curves, with more reasonable meshing and increased volumetric efficiency.

3. Stable performance: Key components such as fan rotors, casings, wall panels, and shafts are all processed using advanced CNC machining equipment, which improves the interchangeability of the parts.

4. Low vibration: Although the rotor has been precision machined, it has reached a balanced state. But high-precision dynamic balancing equipment is still used for balancing. Therefore, the fan operates without vibration.

5. The use of high-precision and high hardness synchronous gears not only extends the lifespan of the fan, but also effectively reduces noise.

6. This series of fan bearings adopts NSK bearings imported from Japan. There are two lubrication methods: grease lubrication is used below 0.6kgf/cm2, and splash lubrication is used between 0.7-0.9kgf/cm2 to ensure more reliable product quality.

7. The output air is clean, free of any oil and dust, and the fan sealing structure is reasonable, preventing oil from entering the casing, thus ensuring clean air.

8. The belt driven three blade Roots blower adopts GATES belt imported from the United States.

Zhida Machinery adheres to the business philosophy of "product quality as the lifeblood of the enterprise". The fundamental principle of putting integrity first. Pursuing the production of better products. Sincerely join hands with friends at home and abroad to create a better future. Our company has a fan maintenance department that specializes in repairing and maintaining series of Roots blowers such as SSR Zhanggu. The maintenance personnel in our department have been engaged in Roots blower production and maintenance work for more than five years. All the accessories used for repairing Roots blowers are from the original manufacturer, and the repaired blowers meet various technical parameters required by the equipment.

Schematic diagram of Roots blower Zhida Heavy Industry