The roots blower is a compressor widely used in the industrial field, and its working principle can be summarized as "rotary gap sealed compression".
This machine compresses gas to the required pressure for a variety of industrial applications such as gas delivery, vacuuming, and smoke extraction.
In roots blowers, two rotors that are engaged in each other rotate synchronously to compress the gas.
These two rotors are shaped like two Archimedean spirals and are called master and slave rotors, respectively.
The gap between the master and slave rotors is very small, only a few millimeters apart, so the gap needs to be lubricated to maintain the tightness.
When the roots blower starts working, the gas enters the rotational gap from the air intake.
As the main rotor and slave rotors rotate, the gas is gradually compressed and discharged towards the outlet in the direction of rotation.
In this process, the density of the gas increases and the pressure gradually increases.
The working principle of roots blowers has many advantages.
First of all, since the rotating parts of the machine are directly engaged, very high compression ratios can be achieved.
Secondly, since there are no friction parts inside the machine, very high efficiency and long life can be achieved.
In addition, roots blowers are very quiet and operate very smoothly, making them ideal for use in some noise-sensitive environments.
However, roots blowers also have some drawbacks.
First of all, the tightness of the machine depends on clearances and lubricating oil, so the lubricant needs to be checked and replaced regularly.
Secondly, because the rotating parts of the machine are very fine, the manufacturing and maintenance costs are also relatively high.
In addition, roots blowers have a relatively low compression ratio, making them unsuitable for applications that require high-pressure gases.
In general, the roots blower is a very practical compressor, which has the advantages of high efficiency, low noise and stability.
It has a wide range of applications in many fields, such as water treatment, chemical industry, metallurgy, etc.
For applications that require compressed gas, roots blowers can be a good choice.