What is the difference between Roots blower and centrifugal blower from Roots blower manufacturers?
2024-08-05
Summary
The Roots blower of Roots blower manufacturer is a positive displacement fan. The delivered air volume is proportional to the number of revolutions. A small gap is always maintained between the end face of the impeller and the front and rear end covers of the fan and between the fan impeller. Driven by the synchronization gear, air is delivered from the air inlet of the fan to the exhaust side along the inner wall of the housing.
Roots blower manufacturersThe Roots fan is a positive displacement fan. The delivered air volume is proportional to the number of revolutions. A small gap is always maintained between the end face of the impeller and the front and rear end covers of the fan and between the fan impeller. Driven by the synchronization gear, air is delivered from the air inlet of the fan to the exhaust side along the inner wall of the housing. Centrifugal fan is a kind of fluid machinery, which relies on the input of mechanical energy to increase gas pressure and exhaust gas. Centrifugal fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships and buildings for ventilation, dust removal and cooling; boilers and Ventilation and induction of industrial furnaces.
Roots blower manufacturersThe difference between Roots blower and centrifugal blower is as follows:
1. The working principle is different. The centrifugal fan uses curved blades to throw the gas to the shell through centrifugal force, while the Roots fan uses two 8-shaped blades with a small gap between the blades. The gas is squeezed to the air outlet by the squeezing of the two blades.
2. Roots blower manufacturers: Due to different working principles, their working pressures are usually different. Roots blower outlet pressure is higher, centrifugal blower outlet pressure is smaller.
3. The air volume is different. Under normal circumstances, Roots blowers are used in places with low air volume requirements but high pressure requirements, while centrifugal blowers are used in places with low pressure requirements and high air volume requirements.
4. Roots blower manufacturers: manufacturing accuracy is different, Roots blower requires high precision, strict assembly requirements, and centrifugal blower is relatively loose.
5. If the load requires a constant current effect, use a Roots blower. Since the Roots blower is a constant flow fan, the main working parameter is the air volume. The output pressure changes with the change of the pipeline and load, and the air volume does not change much. The Roots blower is a high-pressure fan, and the gas is transported from the suction side to the discharge side. If the load requires a constant pressure effect, a centrifugal fan should be used. Because the centrifugal fan is a constant pressure fan, the main working parameter is air pressure. The output air volume changes with the change of pipeline and load, and the air pressure changes little. Centrifugal fans have low air pressure, and the air compression process is usually carried out through several working impellers (or stages) under the action of centrifugal force. Centrifugal fan belongs to the square torque characteristics, Roots fan basically belongs to the constant torque characteristics.
6.Roots blower manufacturersThe air volume and pressure of the Roots blower are generally large, and the noise of the Roots blower is also very large. If the air volume is small and the noise is high, the rotary blower is selected. The rotary blower is also a constant flow fan. The main working parameter is air volume. The output pressure varies with piping and load. The air volume changes very little. Rotary blower is a variable air volume compression fan, its main characteristics are: low speed, low noise, low vibration, high efficiency and high energy saving.
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