What is a Roots blower and how does it work?
Roots blower is a type of positive displacement blower, also commonly referred to as Roots blower. The following is a detailed introduction to Roots blower:
1、 Basic Structure
The Roots blower is mainly composed of two rotors with involute or similar shapes, a casing, wall panels, synchronous gears, and other components. The axes of the two rotors are parallel to each other, and small gaps are maintained between the rotors and between the rotors and the casing and wall panels to avoid contact and friction with each other.
2、 Working principle
The working principle of Roots blower is based on volumetric variation. It works through the "meshing" of a pair of rotors (the gaps between the rotors do not touch each other). The rotor is driven by a motor through a pair of synchronous gears to rotate in the opposite direction at the same speed. As the two rotors are joined together, they enclose a closed chamber with the casing and wall panels, and their dimensions remain unchanged during rotation. When the rotor rotates, they continuously change the volume of gas, thereby pushing the gas from the intake port to the exhaust port without internal compression. Upon reaching the exhaust port, it is pressurized and transported due to the reflux of high-pressure gas on the exhaust side.
3、 Main features
1. High pressure: Due to its volumetric working principle, Roots blower can generate high outlet pressure, which makes it very helpful in applications that require high-pressure gas.
2. Stable flow rate: Due to the design of the impeller and the characteristic of mutual rotation, the flow rate of the Roots blower is relatively stable and not affected by external conditions such as temperature, pressure, or changes in gas composition.
3. High efficiency and durability: Due to its simple and direct working principle, Roots blowers have relatively high efficiency. Due to the lack of direct friction between the impeller and bearings, Roots blowers have minimal wear and typically have a longer lifespan.
4. Easy maintenance: Due to its simple structure, the Roots blower is relatively easy to maintain, reducing downtime caused by maintenance.
4、 Application Fields
Roots blowers are widely used in various industrial fields, such as wastewater treatment, pneumatic conveying, vacuum packaging, ventilation, etc. Its stable high voltage, efficient performance, and easy maintenance make it an ideal choice in these applications.
In summary, Roots blowers play an important role in multiple industrial fields due to their working principles and performance characteristics.
