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Selection of roots blower: what types of roots blower are classified (detailed version):

Source: Roots blower manufacturer Published on: March 10, 2022 Hits:

At present, in the domestic market Roots Blower There are many kinds, but there are many kinds. Classification of fans:

1. Fans can be classified into several types according to the materials used, such as iron shell fans (ordinary fans), glass fiber reinforced plastic fans, plastic fans, aluminum fans, stainless steel fans, etc.

2. Fans can be classified into centrifugal, axial flow, diagonal flow (mixed flow) and cross flow according to the direction of gas flow.

3. Fans can be divided into axial flow fans, centrifugal fans and diagonal flow (mixed flow) fans according to the flow direction after the airflow enters the impeller.

Roots blower

4. Fans can be divided into press in local fans (hereinafter referred to as press in fans) and flame-proof motors placed outside or inside the flow channel, and flame-proof motors placed inside the explosion-proof sealing cavity.

5. Roots blower can also be divided into single-stage, two-stage or multi-stage pressurization fans according to the pressurization form. For example, 4-72 is single-stage pressurization, while Roots blower is multi-stage pressurization fan.

6. Roots blower can be divided into axial flow fan, mixed flow fan, roots fan, roof fan, air conditioning fan, etc. according to the purpose.

7. Fans can be divided into low-pressure fans, medium pressure fans and high-pressure fans according to pressure.

There are also different working modes. Roots blower can be divided into single stage and double stage.
Single stage and double stage. A blower with only one compression stage is called a single-stage blower. Two single-stage blowers are connected in series to compress the gas for two consecutive times, that is Two-stage roots blower 。

Two-stage roots blower

In addition to working methods, other classification methods are as follows:
According to the number of impeller heads: two blade roots blower and three blade roots blower.
According to the seal type, it can be divided into labyrinth seal, expansion ring seal, packing seal, mechanical seal and other types of blowers.
According to the cooling mode, it can be divided into air cooling blower, water cooling blower and counter current cooling blower.
According to the structure type, it can be divided into vertical blower, horizontal blower, vertical shaft blower, dense group blower, etc.
It can be divided into direct connected blower and belt connected blower according to transmission mode.
According to the type of medium: air blower, gas blower, hydrogen blower, sulfur dioxide blower, etc.
By use: shaft kiln blower, gasification blower, aeration blower, etc.