Partition circulation blast aerator and its method

Abstract

The invention discloses a partitioned circulation blast aerator and a method adopting the same. The partitioned circulation blast aerator comprises annular floating boxes, a central floating barrel, an aeration pipe and microporous aeration heads, wherein the annular floating boxes are connected with the central floating barrel to form an integral floating island type floating box; a small-sized high-pressure fan is arranged in the central floating barrel and connected with the aeration pipe and the microporous aeration heads through an air conveying pipe and a self-rotation type air distributor; the self-rotation type air distributor comprises a rotary inner barrel and a fixed outer barrel; a part between an inner ring and an outer ring of the fixed outer barrel is divided into a plurality of chambers; an opening is formed in the inner ring wall of each chamber; an aeration pipe connector is arranged on the outer ring wall of the chamber; the rotary inner barrel is connected with the air conveying pipe; a lateral air jet groove, a tangential air jet nozzle and a radial air jet nozzle are formed in the wall of the rotary inner barrel. High-pressure airflow of the small-sized high-pressure fan can be used for circularly performing aeration on a plurality of fixed regions in sequence through the self-rotation type air distributor, so that the volume of a service water body is multiplied, a purpose of increasing the oxygen transfer coefficient is achieved, and the aeration capacity and power efficiency of the aerator are greatly improved.

Description

technical field [0001] The invention relates to an aeration and oxygenation machine, in particular to a zoned circulation blast aeration machine and a method thereof, which are applicable to the fields of landscape water body, aquaculture, sewage treatment and the like. Background technique [0002] Generally speaking, the devices for adding oxygen to water can be divided into mechanical aeration, blast aeration and jet aeration in principle. In the prior art, mechanical aeration is widely used in aquaculture and sewage treatment. It uses the rotation of the impeller or blade on the surface of the water body to generate shear to oxygenate the water, which has low efficiency and wastes more energy; blast aeration It uses a blower to generate high-pressure airflow, and then oxygenates the water through a special pipeline and aeration device. Its oxygenation efficiency is high, but it has a lot of equipment, a large investment, and requires a large site to install blower rooms ...

AI Technical Summary

Problems solved by technology

For the same blower aerator, at a certain diving depth, its service effective area capacity is certain, therefore, the existing aeration methods cannot effectively increase the volume of the service water body

[0004] For aquaculture or landscape water quality improvement, aeration to a fixed area will make the dissolved oxygen in the water quickly reach saturation, and continuous aeration will cause energy waste

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