What is the difference between Roots blower and vortex blower?

Roots blower and vortex blower are two common types of fans, which are widely used in the industrial field.

Although they can all be used to generate airflow, there are some obvious differences in working principle, performance characteristics and application fields.

This article will compare Roots blower and vortex blower from multiple perspectives to help readers better understand the differences between them.

1、 Operating principle

1. Roots blower:

Roots blower is a volumetric fan, which uses two mutually engaged rotating impellers to generate airflow.

When the two impellers rotate, they draw gas from the air inlet and compress it through the compression chamber to discharge the gas.

The working principle of Roots blower is similar to that of gear pump, which can realize high pressure and large flow gas transmission.

2. Vortex fan:

The vortex fan is a centrifugal fan, which uses the rotor to throw the gas away through centrifugal force and generate airflow.

The blades on the rotor absorb the gas, accelerate it in the process of high-speed rotation, and then throw the gas away to form a vortex.

Vortex fan is usually suitable for low pressure and medium and small flow gas transmission.

2、 Performance characteristics

1. Roots blower:

-High pressure and large flow: Roots blower can provide high gas pressure and large gas flow, which is suitable for application scenarios requiring high pressure and large flow.

-Low vibration and low noise: The structural design of Roots blower makes it have low vibration and noise levels, and is suitable for environments with high requirements for vibration and noise.

-Oil free lubrication: Roots blower adopts oil free lubrication technology to avoid oil pollution and lubrication maintenance problems.

2. Vortex fan:

-High efficiency and energy saving: The design of the vortex fan enables it to achieve efficient gas transmission, with low energy consumption and high efficiency.

-Adjustable speed operation: the rotational speed of the vortex fan can be adjusted by the frequency converter to meet the needs under different working conditions.

-Strong adaptability: the vortex fan can adapt to different working environments and gas compositions, with strong adaptability.

3、 Application field

1. Roots blower:

Roots blower is usually used in the following fields:

-Sewage treatment: Roots blower can be used in sewage treatment such as aeration and mixing.

-Paper industry: Roots blower can be used for pulp conveying and waste gas treatment.

-Environmental protection project: Roots blower can be used in environmental protection equipment such as waste gas treatment, waste gas desulfurization and waste gas denitrification.