What kinds of aeration blowers are used for sewage treatment?

Aeration blowers for sewage treatment mainly include the following types:

Roots blower: this blower is a positive displacement fan, which is characterized by small flow change when the pipe network resistance changes within the design pressure range. The air volume of roots blower is controlled by the speed, and the air volume can be adjusted by frequency conversion. The air pressure can be maintained after frequency conversion.

Multi stage centrifugal fan: single stage centrifugal fan has limited pressure rise at normal speed, and multi-stage serial connection can meet the pressure rise requirements, which is called multi-stage centrifugal fan. When the liquid level in the aeration tank changes, the air blowing volume will change.

Single stage high-speed centrifugal fan (air suspension fan): single stage high-speed centrifugal fan refers to increasing the fan speed, which can meet the process pressure rise requirements through single stage centrifugation. It has large air volume and high efficiency. The flow of single-stage high-speed centrifugal fan varies greatly with the change of wind pressure. When the liquid level in the aeration tank changes, the air blowing rate will change greatly.

Air suspension centrifugal blower: This is a new concept centrifugal blower. It uses advanced air suspension technology and adopts two core technologies, namely "high-speed direct coupled motor" and "air suspension bearing", to improve the speed gear, coupling The cooling system and oil lubrication system have greatly improved the technical performance and operation reliability of the product.

These aeration blowers have their own characteristics and can be selected according to actual needs.