Title:
FINE BUBBLE DIFFUSING APPARATUS AND METHOD
Document Type and Number:
WIPO Patent Application WO/2009/063957
Kind Code:
A1
Abstract:
This aims to provide a fine bubble diffusing apparatus (1) comprising a bubble
mixing bath (2) arranged over or near the water surface of an object water area,
in which fine bubbles are diffused, a water supply pipe (3) extending from the
bath (2) toward the bottom of the object water area, a water feed pipe (4) protruding
downward from the bath (2) and having a plurality of water feed ports (5) opened
in its side face, an underwater pump (6) connected to the water feed pipe (4), and
a device (10) for producing fine bubbles in the water of the bath (2). When the
pump (6) is run, an upward center water flow is established in the center portion
of the water feed pipe (4), and the water is sucked from the water feed ports (5)
of the water feed pipe (4) by the Venturi effect accompanying that center water
flow, so that the water rises in the water feed pipe (4) and is pumped up into the
bath (2). As a result, the water level of the bath (2) becomes higher than the water
level of the object water area thereby to establish a water flow directed from
the bath (2) through the water supply pipe (3) toward the bottom of the object water
area, so that the bubble-mixed water is carried on the water flow toward the bottom
of the water area thereby to diffuse the fine bubbles. Thus, the apparatus and
method can diffuse the fine bubbles all over the object water area by the relatively
low power.
Inventors:
MINAMIDATE MAKOTO (JP)
Application Number:
PCT/JP2008/070727
Publication Date:
May 22, 2009
Filing Date:
November 07, 2008
Export Citation:
Assignee:
EBISU SCIENCE CO LTD (JP)
MINAMIDATE MAKOTO (JP)
MINAMIDATE MAKOTO (JP)
International Classes:
C02F3/20; B01F3/04; B01F5/02; C02F3/16; C02F3/22
Foreign References:
| JPH03238096A | 1991-10-23 | |||
| JPH08299982A | 1996-11-19 | |||
| JPH02108799U | 1990-08-29 | |||
| JP2005262200A | 2005-09-29 | |||
| JP3958346B1 | 2007-08-15 | |||
| JPH10151486A | 1998-06-09 | |||
| JP2003088886A | 2003-03-25 | |||
| JP2005152734A | 2005-06-16 |
Attorney, Agent or Firm:
WATANABE, Atsushi et al. (1-20-10-203 Takadanobaba,Shinjuku-k, Tokyo 75, JP)
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