According to the type of technology, we can mention 5 types of compressed air blowers.
- Rotary lobe blowers (also known as roots blowers)
Rotary lobe blowers consist of two rotors that rotate in opposite directions. The blower draws in air and the lobes rotate around the air before expelling it. They produce a high volume of air, but at low pressure.
The rotary screw blower combines male and female rotors that rotate and decrease the volume of air available between them, causing the air to be compressed. At the beginning of the compression cycle, the inlet air fills the compression chamber space and is trapped. This is continuously compressed as the male and female rotors rotate with each revolution until the air is pushed through the discharged outlet.
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Compared to traditional lobe blowers, the internal compression of rotary screw blowers reduces energy consumption by 30%. By eliminating the pulsations caused by lobe technology, screw blowers' noise levels are three to five times quieter than conventional three-lobe blowers.
- Multistage centrifugal blower
When an air stream passes through the rotating impellers of a centrifugal blower, the speed and volume increase. The blower changes the direction of the airflow, the air enters the fan wheel, rotates 90 degrees, and accelerates before exiting the blower. On the other hand, the multistage centrifugal blower is used to create pressure, circulate air, and generate suction.
This blower can handle high pressures and high flow rates, it is ideal for creating high pressure from small volumes of air. They are suitable for all operations where variable flow at constant pressure is required, the performance characteristics of these blowers generate variable flow and power at a constant speed. To generate more flow, impeller diameters need to be increased. More impellers are required to create more pressure.
High-speed turbo blowers are advanced air-moving devices designed for efficiency and energy conservation in various industrial applications. They are particularly prevalent in wastewater treatment plants, food and beverage, and the petrochemical industry. These blowers operate at high speeds to maximize airflow while minimizing energy consumption, making them a cost-effective solution for continuous operation. With models ranging from small to large horsepower, they cater to a wide range of volume requirements. High-speed turbo blowers are a testament to modern engineering, offering a blend of performance, reliability, and innovation. They represent a significant step forward in blower technology, providing industries with a powerful tool to meet their air movement needs effectively.
Geared turbo blowers, also known as integrally geared centrifugal blowers, are a pivotal technology in modern wastewater treatment plants and various industrial applications. They are designed to offer high efficiency and reduced energy consumption, which can lead to significant cost savings.
These blowers work by utilizing gears to increase the speed of the air being moved, allowing for a compact design that can handle large volumes of air at high pressures. Their adaptability to different flow ranges and conditions makes them a versatile choice for industries looking to optimize their aeration processes and reduce operational costs. With advancements in technology, geared turbo blowers continue to evolve, providing a reliable and energy-efficient solution for aeration needs.
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