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Centrifugal Fan
Introduction
Centrifugal fan is a mechanical device for moving air or other gases. It increases the air stream with the rotation of impellers. And the fan can accelerate air radially, changing the direction of airflow. Centrifugal air blower is mainly composed of drive mechanism, bearing, fan damper and vane and fan rib. Currently, centrifugal fan is fairly suitable for paper-making, steel and cement industries. Besides, it is applicable to power plant and textile mill as well.
Features
1. Centrifugal fan is characterized by compact structure, easy installation, high stability and easy maintenance.
2. With optimized impellers, it runs smoothly. Without adding vibration damper, the amplitute of bearing is less than 0.04 mm.
3. Centrifugal fan enjoys low noise, for it adopts reasonable impeller vane shape which can bring noise to the lowest level.
4. It does not emit oil gas. The bearing is lubricated by lubricating grease and can be used for more than three years.
5. With a special compound vane shape, the impeller can reduce internal leakage, improving volumetric efficiency.
6. The inlet butterfly valve adjusts air flow and the outlet butterly valve adjusts pressure. Thus, centrifugal fan is easy to adjust.
7. Labyrinth seal is employed to avoid air leakage.
8. The bearing of centrifugal air blower is equipped with a temperature alarm to prevent it from damage. The service life of bearing can be lengthened with the installation of air cooling or water cooling device.
9. Three kinds of drive types (coupling drive, belt drive and gearbox drive) are for selection according to actual equipment and technology.
Classification
1. 4-72, 4-68 Centrifugal Fan
Shape of Fan Blade | Airfoil Blade |
Diameter of Impeller (mm) | 280-2000 |
Air Volume (m3/h) | 220000 |
Pressure (Pa) | 3000 |
It is suitable for common air ventilation. |
2. 9-19, 9-26 Centrifugal Fan
Shape of Fan Blade | Forward Curved Blade |
Diameter of Impeller (mm) | 400-1600 |
Air Volume (m3/h) | 120000 |
Pressure (Pa) | 16000 |
Centrifugal air blower is applicable to conveying materials or high pressure forced air ventilation. |
3. T4-72, 4-79 Centrifugal Fan
Shape of Fan Blade | Backward Curved Blade |
Diameter of Impeller (mm) | 300-2000 |
Air Volume (m3/h) | 430000 |
Pressure (Pa) | 3000 |
It is suitable for common air ventilation. |
4. GY4-73, Y5-48 Centrifugal Fan
Diameter of Impeller (mm) | 800-2950 |
Air Volume (m3/h) | 850000 |
Pressure (Pa) | 5500 |
It is used in industrial and civilian boilers. |
5. C6-48 Centrifugal Fan
Diameter of Impeller (mm) | 320-1250 |
Air Volume (m3/h) | 100000 |
Pressure (Pa) | 3000 |
Centrifugal air blower is mainly applied in dusting in textile industry. |
- Axial Flow FanAxia flow fan is now the most common ventilation equipment in the market. It has blades that force air to move parallel to the shaft around which the blades rotate. Axial flow fan blows air along the axia of the fan linearly, hence its name. This type of fan is used in a wide variety of applications.1. Axial flow fan is suitable for metro tunnel ventilation and smoke exhaust...