The difference between the Roots blower and the centrifugal fan

The difference between the Roots blower and the centrifugal fan

The difference between the working principle of the Roots blower and the centrifugal blower:
1.
Working principle of centrifugal blower When the rotation of the motor drives the fan impeller to rotate, the gas between the blades in the impeller also rotates, and these gases are extracted by the centrifugal force, and the gas flow rate is increased, so that the gas converts the kinetic energy into static pressure energy in the flow, and then With the pressurization of the fluid, the static pressure energy is converted into velocity energy, and the gas is exhausted through the exhaust port, and a certain negative pressure is formed in the middle of the impeller. Since the inlet is under negative pressure, the external gas is immediately under the action of atmospheric pressure. Replenishment, continuous discharge and replenishment of gas under the continuous rotation of the impeller, so as to achieve the purpose of continuous blasting. Under the same power, the wind pressure and air volume are generally inversely proportional. Under the same power, the wind pressure is high, the air volume will be relatively low, and the air volume will be large, the wind pressure will be lower, so that the power efficiency of the motor can be fully utilized.

2 , Roots blower , Roots blower works Working principle : The Roots blower is a positive displacement fan. The air volume delivered is proportional to the number of revolutions. The three-blade impeller is sucked and exhausted three times by two impellers per revolution . Compared with the two-leaf type, the gas pulsation is less. The load changes little, the mechanical strength is high, the noise is low, and the vibration is small. There are two trilobal impellers on the two flat-lined shafts . The wheel and the elliptical chassis have a small gap between the inner surface of the hole and the impellers. The impellers rotate in a direction opposite to each Other in the opposite direction. A certain amount of gas surrounded by the impeller is delivered from the suction side to the discharge side. Each impeller always maintains the correct phase by the synchronous gear, and does not touch each other. Therefore, it can be speeded up, does not require internal lubrication, and has a simple structure, stable operation, stable performance, and is suitable for various purposes. field.

Oasis Roots Blower introduces high-quality, low-noise, new-generation energy-efficient products that absorb the advanced technology of domestic and foreign three-leaf Roots blowers, use advanced CAD- aided design, research and development and professional precision production. The product has reasonable structure and small size. High boosting, high efficiency, large air volume, low noise, stable operation, excellent performance, long service life and simple maintenance. Its flow rate is from 0.8m3/min-180m3/min, boosting 9.8kpa-98.8kpa, a total of 11 models, more than 80 specifications, has been widely used in sewage treatment, aquaculture, pneumatic conveying, vacuum packaging, coal washing, Combustion, pressurization, casting, mining, metallurgy, chemical, light industry, building materials, electricity, flour, sandblasting, vacuum and other fields. Oasis Roots blower is available 24 hours a day, service hotline: 13854198118

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