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Title:
MICRO-BUBBLE GENERATION UNIT AND WATER CLEANING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/009830
Kind Code:
A1
Abstract:
Provided are a micro-bubble generation unit and water cleaning system which can be produced at low cost and effectively generate micro-bubbles while backflow of gas is prevented. The invention comprises: an inflow tube section into which a compressed liquid flows; a discharge tube section for discharging a liquid containing micro-bubbles; a throat section located between the inflow tube section and the discharge tube section and having a tube cross section smaller than those of the inflow tube section and the discharge tube section; and a gas introducing hole formed on the wall surface of the throat section or the discharge tube section to allow gas to be introduced inside the throat section or tube section such that the angle between the liquid flow direction and the gas introducing direction is an acute angle. The inner diameter of the throat section is such that a stepped shape of at least two steps is formed in such a manner that the liquid inflow tube section side becomes narrower and the discharge tube section side becomes wider. Preferably, the exit end of the gas introducing hole is formed in a step other than where the throat section inner diameter is narrowest.

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Inventors:
ADACHI KAZUYOSHI (JP)
Application Number:
PCT/JP2019/027867
Publication Date:
January 21, 2021
Filing Date:
July 16, 2019
Export Citation:
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Assignee:
KB CUENTO CO LTD (JP)
International Classes:
B01F5/04; B01F3/04; C02F1/40
Domestic Patent References:
WO2018088482A12018-05-17
WO2015156015A12015-10-15
WO2015060382A12015-04-30
WO2017047796A12017-03-23
Foreign References:
JP2017056438A2017-03-23
JP2007307450A2007-11-29
JP2015085237A2015-05-07
JP2018038944A2018-03-15
JPH0747264A1995-02-21
JPH0760088A1995-03-07
Attorney, Agent or Firm:
THE PATENT CORPORATE BODY GLOBAL INTELLECTUAL PROPERTY (JP)
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