JP2006346638A - Discharging passage of pressure dissolution apparatus - Google Patents

Discharging passage of pressure dissolution apparatus Download PDF

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Publication number
JP2006346638A
JP2006346638A JP2005178796A JP2005178796A JP2006346638A JP 2006346638 A JP2006346638 A JP 2006346638A JP 2005178796 A JP2005178796 A JP 2005178796A JP 2005178796 A JP2005178796 A JP 2005178796A JP 2006346638 A JP2006346638 A JP 2006346638A
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dissolution apparatus
pressure
flow path
pressure dissolution
discharge flow
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Japanese (ja)
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Toshihiko Eguchi
俊彦 江口
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AURA TEC KK
Aura Tec Co Ltd
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AURA TEC KK
Aura Tec Co Ltd
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Priority to JP2005178796A priority Critical patent/JP2006346638A/en
Priority to PCT/JP2006/311393 priority patent/WO2006137265A1/en
Publication of JP2006346638A publication Critical patent/JP2006346638A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
    • B01F25/4338—Mixers with a succession of converging-diverging cross-sections, i.e. undulating cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B01F25/452—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces
    • B01F25/4521—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through orifices in elements, e.g. flat plates or cylinders, which obstruct the whole diameter of the tube
    • B01F25/45211—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through orifices in elements, e.g. flat plates or cylinders, which obstruct the whole diameter of the tube the elements being cylinders or cones which obstruct the whole diameter of the tube, the flow changing from axial in radial and again in axial

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a discharging passage of a pressure dissolution apparatus which has a simple structure and also satisfies the required characteristics of obtaining a high dissolution efficiency. <P>SOLUTION: The discharging passage of the pressure dissolution apparatus for dissolving air in water has at least one shrinking diameter part, at least one end part of which is curved or tapered. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、加圧下において空気などの気体を水などの液体に溶解させ、圧力を開放することで数十ミクロン径のマイクロバブルを水中に吐出する加圧溶解装置に関する。   The present invention relates to a pressure dissolution apparatus that discharges microbubbles having a diameter of several tens of microns into water by dissolving a gas such as air in a liquid such as water under pressure and releasing the pressure.

マイクロバブルによる高い溶解効率については、例えば平成１０年７月２４日発行の日刊工業新聞に記載されているように既に広く知られており、そのためのマイクロバブル発生装置としては、より多くの微細な気泡を効率的に得られることが必要であるとの観点から、特開2005−000882号公報、特開2004−283810号公報、特開2003−079535号公報、特開2002−102093公報等に見られるように、多くの加圧溶解装置が提案されている。
図４は、従来の加圧溶解装置を示し、水槽２の水がポンプ３により空気とともに吸い上げられ、取り入れられた空気はポンプ出口側に設けられた溶解タンク４において加圧下で溶解し、吐出流路１に設けられたバルブ５を介してマイクロバブルとなって吐き出される。 The high dissolution efficiency by microbubbles is already widely known as described in, for example, the Nikkan Kogyo Shimbun published on July 24, 1998. From the viewpoint that it is necessary to obtain bubbles efficiently, see JP-A-2005-000882, JP-A-2004-283810, JP-A-2003-079535, JP-A-2002-102093, etc. As can be seen, many pressure dissolving devices have been proposed.
FIG. 4 shows a conventional pressure dissolution apparatus, in which water in a water tank 2 is sucked up together with air by a pump 3, and the taken-in air is dissolved under pressure in a dissolution tank 4 provided on the pump outlet side. Microbubbles are discharged through a valve 5 provided in the path 1.

ところが、上記従来の加圧溶解装置は、何れも気泡を生成するための流路構造となっているため、気泡数は多く得られるものの、微細泡とはいえ時間と共に水面に浮上し充分な溶解効率が得られていなかった。
本発明が解決しようとする課題は、構造が簡単で、しかも高い溶解効率を得るという要求特性を満たす加圧溶解装置の吐出流路を提供することにある。 However, since all of the above conventional pressure dissolution devices have a flow channel structure for generating bubbles, a large number of bubbles can be obtained. Efficiency was not obtained.
The problem to be solved by the present invention is to provide a discharge flow path of a pressure dissolution apparatus that has a simple structure and satisfies the required characteristics of obtaining high dissolution efficiency.

前記課題を解決するため、本発明の加圧溶解装置の吐出流路は、少なくとも1箇所の縮径部を設け、縮径部の少なくとも一方の端部に、アールもしくはテーパーを施したことを特徴とする。   In order to solve the above problems, the discharge flow path of the pressure dissolution apparatus of the present invention is provided with at least one reduced-diameter portion, and at least one end of the reduced-diameter portion is rounded or tapered. And

本発明の加圧溶解装置の吐出流路は、縮径部が設けられ、縮径部の少なくとも一方の端部にアールもしくはテーパーが形成されているので、液体中に加圧溶解させた空気を圧力開放する際、発生する乱流を排除することで気体の析出を抑えられる。その結果従来の加圧溶解装置と比較すると、表１、表２のように飽和酸素量までの所要時間を約1/2に短縮する溶解効率を発揮する。

Figure 2006346638
Figure 2006346638
 The discharge flow path of the pressure dissolution apparatus of the present invention is provided with a reduced diameter portion, and at least one end of the reduced diameter portion is formed with a radius or a taper. When releasing the pressure, it is possible to suppress gas precipitation by eliminating the generated turbulent flow. As a result, compared with the conventional pressure dissolution apparatus, as shown in Tables 1 and 2, the dissolution efficiency that shortens the time required for the saturated oxygen amount to about 1/2 is exhibited.
Figure 2006346638
Figure 2006346638

以下本発明の実施の形態について説明する。   Embodiments of the present invention will be described below.

図１は第１の実施例に係る加圧溶解装置の吐出流路１の構造を示す縦断面および正面図である。図において縮径部１０は、例えば銅棒を穿孔した中空体を加圧溶解装置の溶解タンクからの吐出流路１の端末にねじ込んで装着する。   FIG. 1 is a longitudinal cross-sectional view and a front view showing the structure of the discharge flow path 1 of the pressure dissolution apparatus according to the first embodiment. In the figure, the reduced diameter portion 10 is attached by screwing a hollow body, for example, with a copper rod, into the end of the discharge flow path 1 from the dissolution tank of the pressure dissolution apparatus.

図２は第２の実施例に係る加圧溶解装置の吐出流路１の構造を示す縦断面である。図において縮径部１０は、加圧溶解装置の溶解タンクからの吐出流路１に複数箇所設けられる。   FIG. 2 is a longitudinal section showing the structure of the discharge flow path 1 of the pressure dissolution apparatus according to the second embodiment. In the figure, a plurality of reduced diameter portions 10 are provided in the discharge flow path 1 from the dissolution tank of the pressure dissolution apparatus.

図３は第３の実施例に係る加圧溶解装置の吐出流路１の構造を示す縦断面である。図に示すように、縮径部１０は吐出流路１の管の一部を絞って、少なくとも絞りの一方の端部をアール又はテーパーに形成しても良い。   FIG. 3 is a longitudinal section showing the structure of the discharge flow path 1 of the pressure dissolving apparatus according to the third embodiment. As shown in the drawing, the diameter-reduced portion 10 may be formed by narrowing a part of the pipe of the discharge flow path 1 so that at least one end of the throttle is rounded or tapered.

本発明の第１の実施例である加圧溶解装置の吐出流路の構造を示す。The structure of the discharge flow path of the pressurization dissolution apparatus which is the 1st Example of this invention is shown. 本発明の第２の実施例である加圧溶解装置の吐出流路の構造を示す。The structure of the discharge flow path of the pressurization dissolution apparatus which is the 2nd Example of this invention is shown. 本発明の第３の実施例である加圧溶解装置の吐出流路の構造を示す。The structure of the discharge flow path of the pressurization dissolution apparatus which is the 3rd Example of this invention is shown. 従来の加圧溶解装置の構造を示す。The structure of the conventional pressure dissolution apparatus is shown.

符号の説明Explanation of symbols

１０ 縮径部
本発明の加圧溶解装置の吐出流路
水槽
ポンプ
溶解タンク
バルブ 10 Reduced-diameter portion Discharge flow path of pressure dissolution apparatus of the present invention Water tank Pump Dissolution tank Valve

Claims (1)

水に空気を溶解させる加圧溶解装置の吐出流路において、少なくとも1箇所の縮径部を設け、縮径部の少なくとも一方の端部に、アールもしくはテーパーを施したことを特徴とする加圧溶解装置の吐出流路。
In a discharge flow path of a pressure dissolution apparatus for dissolving air in water, at least one reduced diameter portion is provided, and at least one end of the reduced diameter portion is rounded or tapered. Discharge flow path of melting device.
JP2005178796A 2005-06-20 2005-06-20 Discharging passage of pressure dissolution apparatus Pending JP2006346638A (en)

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PCT/JP2006/311393 WO2006137265A1 (en) 2005-06-20 2006-06-07 Discharge flow passage of pressure dissolving device

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009195811A (en) * 2008-02-20 2009-09-03 Panasonic Electric Works Co Ltd Water clarification apparatus
JP2009254984A (en) * 2008-04-17 2009-11-05 Aura Tec:Kk Nanobubble generation method and nanobubble generator
JP2013017944A (en) * 2011-07-11 2013-01-31 Iwai Kikai Kogyo Co Ltd Gas dissolving device and gas dissolving method
JP2014104441A (en) * 2012-11-29 2014-06-09 Idec Corp Fine bubble generating nozzle and fine bubble generating device
JP2014217828A (en) * 2013-05-07 2014-11-20 株式会社かがやき Method and apparatus for manufacturing nano-bubble
JP2016155081A (en) * 2015-02-24 2016-09-01 株式会社テックコーポレーション Fine bubble generator and fine bubble generation method
US11110414B2 (en) 2016-07-26 2021-09-07 Kagoshima University Bubble generation device, tubular member, bubble generation method, and method for manufacturing bubble generation device

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JP4960184B2 (en) * 2007-09-19 2012-06-27 富士フイルム株式会社 Solution casting method
JP4936189B2 (en) * 2008-02-20 2012-05-23 パナソニック株式会社 Carbonated water production equipment
WO2013071229A1 (en) * 2011-11-10 2013-05-16 Blissfield Manufacturing Company Process and apparatus for gas-enriching a liquid
JP6032456B2 (en) * 2011-12-09 2016-11-30 フジデノロ株式会社 Carbonate spring generator

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JPH0693991B2 (en) * 1992-08-17 1994-11-24 和泉電気株式会社 Gas-liquid dissolution mixing device
JPH09173804A (en) * 1995-10-26 1997-07-08 Idec Izumi Corp Method for dissolving and mixing gas and liquid and device therefor
JP3640451B2 (en) * 1995-11-24 2005-04-20 和泉電気株式会社 Bubble diameter control method and apparatus
JP3647731B2 (en) * 2000-08-10 2005-05-18 有限会社出雲技研 Gas-liquid supply device
JP3823045B2 (en) * 2001-11-16 2006-09-20 株式会社プリオ Hair clog elimination sewage mixing device and method of using the device
JP2005138035A (en) * 2003-11-07 2005-06-02 Purio:Kk Method and apparatus for electrolytic treatment of sewage
JP4753572B2 (en) * 2004-12-16 2011-08-24 三洋電機株式会社 Micro bubble generator
JP2006198597A (en) * 2005-01-20 2006-08-03 Ics Kk Method for producing micro-bubbles

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009195811A (en) * 2008-02-20 2009-09-03 Panasonic Electric Works Co Ltd Water clarification apparatus
JP2009254984A (en) * 2008-04-17 2009-11-05 Aura Tec:Kk Nanobubble generation method and nanobubble generator
JP2013017944A (en) * 2011-07-11 2013-01-31 Iwai Kikai Kogyo Co Ltd Gas dissolving device and gas dissolving method
JP2014104441A (en) * 2012-11-29 2014-06-09 Idec Corp Fine bubble generating nozzle and fine bubble generating device
JP2014217828A (en) * 2013-05-07 2014-11-20 株式会社かがやき Method and apparatus for manufacturing nano-bubble
JP2016155081A (en) * 2015-02-24 2016-09-01 株式会社テックコーポレーション Fine bubble generator and fine bubble generation method
US11110414B2 (en) 2016-07-26 2021-09-07 Kagoshima University Bubble generation device, tubular member, bubble generation method, and method for manufacturing bubble generation device

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