A tubular micro-bubble generator

Abstract

The invention discloses a tube-type micro-bubble generator, which is installed in a water purification pipeline, and comprises a coaxially installed water inlet component (1), an annular gas injection mechanism (2) and a bubble breaking mechanism (3); The annular gas injection mechanism (2) includes a gas injection pipe (21), an outer ring (22), an inner ring (23) and a connecting pipe (24), and the inner ring (23) and the outer ring (22) are installed concentrically , the outer ring (22) is a cavity structure, the inner ring (23) is a ring chamber (233) with side openings, and a microporous plate (232) is installed at the side openings of the inner ring (23) ); the cavity outer wall of the outer ring (22) is communicated with the gas injection pipe (21), and the cavity inner wall of the outer ring (22) is connected to the inner ring (22) by the connecting pipe (24) The ring cavity (233) communicates. A new tubular microbubble generator with compact structure, simple operation, low maintenance cost and the ability to generate microbubbles of different particle sizes.

Description

technical field [0001] The invention relates to the fields of mechanical technology and water purification treatment, in particular to a tube-type micro-bubble generator. Background technique [0002] According to the definition of the Standardization Organization (ISO), fine bubbles usually refer to bubbles with a particle size of less than 100 microns. They have the characteristics of large specific surface area, high gas holdup, unbreakable, high adhesion efficiency, and high mass transfer efficiency. They are widely used in mineral flotation. Selection, water purification treatment, aquaculture and biopharmaceuticals and other fields. Especially in the field of sewage treatment, micro-bubbles are not only used to increase the dissolved oxygen content in sewage, to promote the phagocytosis and decomposition of organic impurities in sewage by aerobic microorganisms, but also to form solid or liquid suspended particles in the adhered water to form particles with a density l...

AI Technical Summary

Problems solved by technology

[0003] Generally speaking, the generation methods of fine bubbles can be divided into five categories: dissolved air release type, air-entrained dispersion type, microporous air diffusion type, shear contact type, and electrolysis type. This kind of micro-bubble generator and its corresponding micro-bubble generation method generally have the disadvantages of high energy consumption, complex structure, and poor quality of generated bubbles, and the generated micro-bubbles are difficult to meet the needs of water purification treatment. , low maintenance cost and capable of generating bubbles of different particle sizes, the new tubular microbubble generator has very important practical significance

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