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Title:
MICROBUBBLE GENERATION DEVICE, MICROBUBBLE GENERATION METHOD, AND SHOWER APPARATUS AND OIL-WATER SEPARATION APPARATUS COMPRISING SAID MICROBUBBLE GENERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/026195
Kind Code:
A1
Abstract:
Provided are: a microbubble generation device, which utilizes a swirling flow generated by jetting of a pressurized liquid and which has excellent handleability, operability and durability as a result of a simplified configuration and structure; a microbubble generation method capable of generating large amounts of bubbles; and a shower apparatus and an oil-water separation apparatus that comprise said microbubble generation device. This microbubble generation device comprises: a cylindrical or conical pipe with a gas-liquid swirling chamber therein; a gas-liquid jetting port provided on one end of the cylindrical or conical pipe; and a liquid supply pipe and gas supply cylinder, which are provided with respective introduction ports for introducing a liquid and a gas into the gas-liquid swirling chamber. For the gas-liquid jetting port, multiple small cylindrical through holes are provided in the wall of a closed end at one end of the cylindrical or conical pipe, or multiple small concavities that have circular cross-sections and have at least a semicircular circumferential length are provided on the circumferential surface of the inner wall of an open end at one end of the cylindrical or conical pipe.

Inventors:
TACHIBANA Yoshiaki (C/O SIGMA-TECHNOLOGY INC, 5147-10 Nakane, Hitachinaka-sh, Ibaraki 11, 〒3120011, JP)
TACHIBANA Kousuke (C/O SIGMA-TECHNOLOGY INC, 5147-10 Nakane, Hiatchinaka-sh, Ibaraki 11, 〒3120011, JP)
SASAJIMA Souzou (C/O SIGMA-TECHNOLOGY INC, 5147-10 Nakane, Hitachinaka-sh, Ibaraki 11, 〒3120011, JP)
HONMA Kyoko (C/O SIGMA-TECHNOLOGY INC, 5147-10 Nakane, Hiatchinaka-sh, Ibaraki 11, 〒3120011, JP)
Application Number:
JP2017/027970
Publication Date:
February 07, 2019
Filing Date:
August 02, 2017
Export Citation:
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Assignee:
SIGMA-TECHNOLOGY INC. (5147-10, Nakane Hitachinaka-sh, Ibaraki 11, 〒3120011, JP)
International Classes:
B01F5/00; A47K3/28; B01D17/035; B01F3/04; B03D1/24; C02F1/24
Domestic Patent References:
WO2005110586A12005-11-24
Foreign References:
JP2008279351A2008-11-20
JP2013052319A2013-03-21
JP2012236163A2012-12-06
JP2010131544A2010-06-17
Attorney, Agent or Firm:
EGUCHI Shuji (C/O TOKAI MURA INDUSTRY & INFORMATION PLAZA, 3-1-1 Funaishikawaekihigashi, Tokai-mura Naka-gu, Ibaraki 18, 〒3191118, JP)
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