The QXB centrifugal submersible aerator is a self-priming aerator with a direct coupled structure. The centrifugal force generated by the rotating impeller creates negative pressure at the inlet of the impeller to suck in air and water. The kinetic energy of the impeller is used to mix a certain proportion of air and water in the mixing chamber. Under strong centrifugal force, the two-phase flow of air and water is rectified along the tangential direction of the impeller through the flow channel, and then diffuses in the circumferential direction. The fine bubbles are fully fused with the water, thus achieving the effect of oxygenation and aeration. Suitable as a specialized equipment for aeration and agitation in various biochemical treatment processes for wastewater.

1. Adopting the sealing technology of imported Swedish Feili submersible motors for underwater motors;
2. The impeller is directly connected to the motor, with a simple structure, high efficiency, and long service life;
3. A mesh inlet can be added to prevent foreign objects from entering the body and causing unnecessary damage;
4. The intake volume can be adjusted through the intake valve;
5. Apart from the motor, other component materials are available for selection, including stainless steel, carbon steel, and cast iron.

The QXB centrifugal aerator is used in the aeration tank and aeration sedimentation tank of sewage treatment plants to oxygenate and mix the mixed liquid of sewage, as well as to perform biochemical treatment or oxygenation in aquaculture ponds. The intake volume is 10-100m ³/h, the oxygenation capacity is 0.35-8.20KgO2/h, and the motor power is 0.75-22kw.

The QXB centrifugal aerator is directly driven by a motor and an impeller. It uses the centrifugal force generated by the rotation of the impeller to discharge the surrounding water and form a low-pressure zone for sucking in water flow. At the same time, a vacuum is created at the inlet of the impeller to suck in air. In the mixing chamber, the air and water are fully mixed to form a uniform air-water mixture, which is quickly discharged under the action of centrifugal force.

Due to the extremely strong water jet, effective water circulation is created, causing the air to be sheared into a large number of tiny bubbles. Greatly increasing its surface area, and due to the slow rise of bubbles, a large amount of oxygen in the air dissolves in water, making the power efficiency of this machine superior to other types of aerators.

1. Unique mixing chamber design, high intake air volume, good mixing effect, and high oxygen utilization rate;
2. The air-water mixture is discharged from the mixing chamber at a special angle, which can make the water flow in a spiral shape towards the horizontal direction and then upwards, while also having a stirring effect during aeration;
3. The body sinks into the water and runs without noise. A muffler can be installed on the water outlet of the intake pipe to enhance the noise reduction effect.

model	power	Scope of action (m)	Diving depth	Air intake pipe diameter (mm)	Intake volume (m3/h)
QXB1.5-40	1.5	1.0-20	2	40	22
QXB2.2-50	2.2	2.5-50	3	50	35
QXB3-50	3	3.0-5.5	3	50	30
QXB4-65	4	3.0-6.0	3	65	75
QXB5.5-65	5.5	3.5-7.0	3	65	85
QXB7.5-80	7.5	4.5-9.0	3	80	100
QXB11-80	11	5.0-10.0	4	80	160
QXB15-100	15	5.8-11.5	5	100	200
QXB18.5-100	18.5	5.9-11.8	5.5	100	260
QXB22-100	22	6.0-12.0	6	100	320