Bernoulli Back-Flushing Filter | AF Series ...
AF filter works in Bernoulli Effect Principle, which leads to the simple and reliable filtering operation. AF filter can remove debris and particles in the natural water sources such as sea water or river water. Cleaning the filter screen with surface cross flow and back-flushing flow produces higher particle removal efficiency than the conventional brush filter. Particles which are larger than the screen aperture will be extruded through the screen when a brush disc is brushing and cleaning.
Working Principle
The flushing sequence is initiated by a timer setting or triggered by a differential pressure sensor before any blockage of the filter screen causing flow reduction.
In the pre-flushing stage, the flushing valve opens and larger particles are flushed out.
During the flushing sequence, a special shaped flushing disc mounted on a piston shaft is driven by a pneumatic cylinder moves up and down in the filter basket.
Because of the gap between the disc and the inner surface of the filter screen, the flow velocity increases locally around the disc, the static pressure is reduced in accordance with the Bernoulli Principle. The direction of the flow is reversed and the vacuum effect of lower static pressure back-flushes the filter screen inside surface with the filtered water. Thus it releases particles which are stuck to the surface of the filter basket.
The released particles are led out from the filter through the flushing outlet.
Design Specification
Applications
Applicable System: water treatment pre-filtration, circulating cooling system, heat exchanger protection, spraying nozzle protection, ballast water treatment system, ultra-filtration membrane protection
Applicable Fluids: underground water, sea water, lake water, river water, circulating cooling water, sewage water, process water, cleaning water, etc.
Technical Features and Advantages
?
To contact AU-LIVIC PTY LTD about Bernoulli Back-Flushing Filter | AF Series use Get a quote.
AF filter works in Bernoulli Effect Principle, which leads to the simple and reliable filtering operation. AF filter can remove debris and particles in the natural water sources such as sea water or river water. Cleaning the filter screen with surface cross flow and back-flushing flow produces higher particle removal efficiency than the conventional brush filter. Particles which are larger than the screen aperture will be extruded through the screen when a brush disc is brushing and cleaning.
Working Principle
The flushing sequence is initiated by a timer setting or triggered by a differential pressure sensor before any blockage of the filter screen causing flow reduction.
In the pre-flushing stage, the flushing valve opens and larger particles are flushed out.
During the flushing sequence, a special shaped flushing disc mounted on a piston shaft is driven by a pneumatic cylinder moves up and down in the filter basket.
Because of the gap between the disc and the inner surface of the filter screen, the flow velocity increases locally around the disc, the static pressure is reduced in accordance with the Bernoulli Principle. The direction of the flow is reversed and the vacuum effect of lower static pressure back-flushes the filter screen inside surface with the filtered water. Thus it releases particles which are stuck to the surface of the filter basket.
The released particles are led out from the filter through the flushing outlet.
Design Specification
Applications
Applicable System: water treatment pre-filtration, circulating cooling system, heat exchanger protection, spraying nozzle protection, ballast water treatment system, ultra-filtration membrane protection
Applicable Fluids: underground water, sea water, lake water, river water, circulating cooling water, sewage water, process water, cleaning water, etc.
Technical Features and Advantages
?
To contact AU-LIVIC PTY LTD about Bernoulli Back-Flushing Filter | AF Series use Get a quote.
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