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How does a submersible centrifugal aerator work?
Date: 2015-11-19Read: 18


Submersible centrifugal aerator


The aerator consists of five parts: submersible pump, jet generator, diffuser, suction pipe, and hose.

Submersible centrifugal aeratorDuring operation, the impeller of the water pump rotates at high speed under the drive of the submersible motor, pushing the mud water mixture into the jet generator to form a jet. A negative pressure zone is generated around the jet generator, and air is sucked into the negative pressure zone of the jet nozzle through the suction pipe. The air, water, and mud are fully mixed in the throat of the jet generator, and the kinetic energy of the jet is gradually converted into pressure energy through the diffusion pipe of the jet generator before entering the diffuser. In the diffuser, the mixture of gas, water, and mud is further mixed, forcing the gas to continue shearing, crushing, and emulsifying, ensuring that the vast majority of oxygen is fully dissolved in the water. At the same time, under the action of jet fluid pressure, the jet carries oxygen molecules and tiny bubbles, which are tilted downwards from the nozzle of the diffuser and diffuse, forming an impact and stirring on the water and the sludge at the bottom of the biochemical tank. After that, the microbubbles slowly rise from the bottom of the tank to the water surface. The microbubbles generally stay in the water for more than 30 seconds, allowing oxygen in the air to be fully dissolved and absorbed, improving oxygen transfer efficiency and oxygenation capacity.

Submersible centrifugal aeratorIt can generate high negative pressure and strong turbulence, stirring, and shearing between mud, water, and air in the jet injector, promote high-frequency oscillation of liquid film and gas film, significantly reduce the diameter of bubbles, increase the number of bubbles, increase the specific surface area of bubbles, and also thin the gas liquid film, greatly reducing mass transfer resistance and allowing oxygen molecules to better transfer from the gas phase to the liquid phase.During the high-speed advancement of the jet, under the action of high-speed rotation inside the disperser, it has a highAngular velocitydegreeMake the jet have strong penetrating power, allowing small bubbles to travel far in water, enhancing stirring, pushing and oxygenation capabilities.