Submersible Jet Aerator

Name: QSB Submersible Jet Aerator

Brand: Jiangsu Du'an Environmental Protection

Model: QSB-1.5

Material: Cast iron casing, carbon steel aeration disc 

Voltage: 380V

Motor Power: 1.5KW

Comes with intake pipe, silencer, bell mouth, fixing bolts, and sealing gasket

QSB Type Jet Submersible Aerator Models and Product Features

Jiangsu Du'an Environmental Protection QSB Submersible Jet Aerator consists of a submersible electric pump and a jet pump, enabling simultaneous water agitation and oxygenation. It achieves high oxygen absorption rates while offering the advantage of non-clogging impellers. The powerful unidirectional liquid flow creates effective convective circulation, with minimal variation in motor load due to water level changes. Installation is simple.

The QSB Type Deep Water Self-Priming Submersible Jet Aerator can operate normally and continuously under the following conditions:

1. Medium temperature not exceeding 40°C;

2 Medium PX  VFGDDQEAWSH value between 5~9;

3 Medium density not exceeding 1150kg/m³

Du'an Environmental Protection QSB Jet Aerator Technical Description:

The QSB Submersible Jet Aerator consists of five parts: submersible pump, jet device, diffuser, air intake pipe, and hose. It integrates advanced diffuser technology based on traditional jet mechanisms and employs jet aeration methods.

During operation, the pump impeller, driven by the submersible motor at high speed, pushes the sludge-water mixture into the jet device to form a jet stream, creating a negative pressure zone around it. Air is drawn through the intake pipe into the negative pressure zone of the jet nozzle, where gas, water, and sludge are fully mixed in the throat of the jet device. The kinetic energy of the jet is gradually converted into pressure energy through the diffuser tube of the jet device before entering the diffuser. In the diffuser, the mixture of gas, water, and sludge is further blended, forcing the gas to undergo continued shearing, crushing, and emulsification, ensuring that most of the oxygen is fully dissolved in the water. Simultaneously, under the pressure of the jet fluid, the jet carries oxygen molecules and micro-bubbles, ejecting obliquely downward from the diffuser nozzle and spreading out. This impacts and agitates the water body and the sludge at the bottom of the biochemical tank, then slowly rises from the bottom to the surface. The micro-bubbles remain in the water for typically over 30 seconds, allowing full dissolution and absorption of atmospheric oxygen, thereby improving oxygen transfer efficiency and oxygenation capacity. This equipment generates high negative pressure and intense turbulence, mixing, and shearing within the jet device, promoting high-frequency oscillation of the liquid and gas films. This significantly reduces bubble diameter, increases bubble count, expands the specific surface area of bubbles, and thins the gas-liquid film, greatly reducing mass transfer resistance and facilitating better transfer of oxygen molecules from the gas phase to the liquid phase. As the jet advances at high speed, the high-speed rotation within the disperser imparts high angular velocity, giving the jet strong penetration power. This allows micro-bubbles to travel far in the water, enhancing mixing, flow propulsion, and oxygenation capabilities. Applicable for deep water aeration, aeration and mixing in biochemical tanks, sludge aeration and mixing, and high-concentration organic wastewater treatment processes.

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