Introduction to working principle of Roots blower

Introduction to the working principle of Roots blower. Roots blower is a compressor widely used in the industrial field, and its working principle can be summarized as "rotary clearance sealed compression".

This machine can compress the gas into the required pressure, so as to realize various industrial applications such as gas transmission, dust collection, smoke exhaust, etc.

In Roots blower, two rotors engaged with each other realize gas compression through synchronous rotation.

The shape of these two rotors is like two Archimedes spirals, which are called the main rotor and the secondary rotor respectively.

The clearance between the main rotor and the secondary rotor is very small, only a few millimeters away, so it is necessary to maintain the tightness of the clearance through lubricating oil.

When Roots blower starts to work, the gas will enter the rotating clearance from the air inlet.

As the main rotor and secondary rotor rotate, the gas will be gradually compressed and discharged to the air outlet along the direction of rotation.

In this process, the density of the gas will continue to increase, and the pressure will gradually rise.

The working principle of Roots blower has many advantages.

First, because the rotating parts of the machine are directly engaged, a very high compression ratio can be achieved.

Secondly, because there are no friction parts inside the machine, it can achieve very high efficiency and long life.

In addition, the noise of Roots blower is very low and the operation is very stable, so it is very suitable for some noise sensitive environments.

However, Roots blower also has some shortcomings.

First of all, the sealing of the machine depends on the clearance and lubricating oil, so it is necessary to check and replace the lubricating oil regularly.

Secondly, because the rotating parts of the machine are very fine, the manufacturing and maintenance costs are also relatively high.

In addition, Roots blower has a relatively low compression ratio, so it is not suitable for applications requiring high-pressure gas.

In general, Roots blower is a very practical compressor with the advantages of high efficiency, low noise, stability, etc.

It is widely used in many fields, such as water treatment, chemical industry, metallurgy, etc.

For applications requiring compressed gas, Roots blower can be a good choice.