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JP2020138171A - Gas-liquid dissolution tank - Google Patents

Gas-liquid dissolution tank Download PDF

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JP2020138171A
JP2020138171A JP2019037026A JP2019037026A JP2020138171A JP 2020138171 A JP2020138171 A JP 2020138171A JP 2019037026 A JP2019037026 A JP 2019037026A JP 2019037026 A JP2019037026 A JP 2019037026A JP 2020138171 A JP2020138171 A JP 2020138171A
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gas
tank body
liquid
stirring means
tank
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JP7269031B2 (en
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竜一 谷村
Ryuichi Tanimura
竜一 谷村
亮平 倉内
Ryohei Kurauchi
亮平 倉内
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Nittoseiko Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract

【課題】液体と気体の溶解比率を高め、溶解時間が短縮でき、小型化が可能な気液溶解タンクを提供する。【解決手段】気液混合体の流入口２ａおよび流出口２ｂを有するタンク本体２と、タンク本体の内部に配置され、流入口から流入した気液混合体を撹拌させる撹拌手段３とを備える気液溶解タンクにおいて、撹拌手段は、開口部３ａおよび底部３ｂを有する有底筒状を成し、その開口部をタンク本体の流入口に所定の間隔を設けて対向させるように配置することにより、流入口から流入した気液混合体を当該撹拌手段の底部に衝突させて撹拌させるように構成した気液溶解タンクによる。【選択図】図１A gas-liquid dissolving tank capable of increasing the dissolving ratio of liquid and gas, shortening the dissolving time, and reducing the size is provided. The gas-liquid mixture includes a tank body 2 having an inlet 2a and an outlet 2b for a gas-liquid mixture, and a stirring means 3 disposed inside the tank body for stirring the gas-liquid mixture flowing in from the inlet. In the liquid dissolving tank, the stirring means has a bottomed cylindrical shape having an opening 3a and a bottom 3b, and the opening is arranged to face the inlet of the tank body with a predetermined gap, The gas-liquid dissolving tank is configured such that the gas-liquid mixture introduced from the inflow port collides with the bottom portion of the stirring means and is stirred. [Selection drawing] Fig. 1

Description

本発明は、微細気泡を発生させるのに好適な気液溶解タンクおよびシャワーシステムに関する。 The present invention relates to a gas-liquid dissolution tank and shower system suitable for generating fine bubbles.

微細気泡を含む水は、洗浄効果などを高めるものとして注目され、空気の微細気泡を水中に発生させる微細気泡発生装置が提案されている。これら装置において、良質な微細気泡を効率よく生成するのに必要な要素の一つとして、気液溶解タンクの性能が関係する。そこで、気体の溶解性能を高めることを目的に考案された溶解タンクとしては、特許文献１に示すものがある。この溶解タンクは、タンク本体の上下に気液混合体の流入口および流出口を備えている。また、タンク本体の内部には、乱流促進板が配置されており、タンク本体の流入口から流入した気液混合体が当該乱流促進板に衝突することにより、タンク内部における液体中の気泡の撹拌作用を向上させて液体と液体の溶解比率を高めようとするものである。 Water containing fine bubbles has attracted attention as a device for enhancing a cleaning effect and the like, and a fine bubble generator for generating fine bubbles of air in water has been proposed. In these devices, the performance of the gas-liquid dissolution tank is related as one of the factors necessary for efficiently generating high-quality fine bubbles. Therefore, as a dissolution tank devised for the purpose of improving the dissolution performance of the gas, there is one shown in Patent Document 1. This dissolution tank is provided with inlets and outlets for gas-liquid mixture above and below the tank body. Further, a turbulence promoting plate is arranged inside the tank body, and the gas-liquid mixture flowing in from the inflow port of the tank body collides with the turbulence promoting plate, so that bubbles in the liquid inside the tank The purpose is to improve the stirring action of the liquid and increase the dissolution ratio of the liquid.

特開２００１−１２９３７７号公報Japanese Unexamined Patent Publication No. 2001-129377

しかしながら、上記溶解タンクの乱流促進板では、実際のところ、所望の撹拌作用を得られず、溶解タンク内の液体と液体の溶解比率を飛躍的に高めることができない問題を有していた。 However, the turbulent flow promoting plate of the dissolution tank has a problem that the desired stirring action cannot be obtained and the dissolution ratio of the liquid to the liquid in the dissolution tank cannot be dramatically increased.

本発明は、上記問題に鑑みて創生されたものであり、液体と気体の溶解比率を高め、溶解時間が短縮でき、小型化が可能な気液溶解タンクを目的とする。 The present invention has been created in view of the above problems, and an object of the present invention is a gas-liquid dissolution tank capable of increasing the dissolution ratio of liquid and gas, shortening the dissolution time, and reducing the size.

気液混合体の流入口および流出口を有するタンク本体と、タンク本体の内部に配置され、流入口から流入した気液混合体を撹拌させる撹拌手段とを備える気液溶解タンクにおいて、撹拌手段は、開口部および底部を有する有底筒状を成し、その開口部をタンク本体の流入口に所定の間隔を設けて対向させるように配置することにより、流入口から流入した気液混合体を当該撹拌手段の底部に衝突させて撹拌させるように構成した気液溶解タンクによる。 In a gas-liquid dissolution tank having a tank body having an inlet and an outlet for the gas-liquid mixture and a stirring means arranged inside the tank body for stirring the gas-liquid mixture flowing in from the inlet, the stirring means is , A bottomed cylinder having an opening and a bottom is formed, and the openings are arranged so as to face the inflow port of the tank body at a predetermined interval, so that the gas-liquid mixture flowing in from the inflow port can be separated. By a gas-liquid dissolution tank configured to collide with the bottom of the stirring means to stir.

なお、タンク本体の流入口、撹拌手段およびタンク本体の内径比は、概ね１：２：３に設定されていることが好ましい。 The inflow port of the tank body, the stirring means, and the inner diameter ratio of the tank body are preferably set to approximately 1: 2: 3.

なお、タンク本体の流入口と撹拌手段の開口部との間隔は、タンク本体の内壁と撹拌手段の外壁との間隔と概ね同一に設定されていることが好ましい。 It is preferable that the distance between the inflow port of the tank body and the opening of the stirring means is set to be substantially the same as the distance between the inner wall of the tank body and the outer wall of the stirring means.

なお、撹拌手段は、パンチングメタルで構成されていることが好ましい。 The stirring means is preferably made of punching metal.

本発明によれば、有底筒状に形成された撹拌手段によって、タンク本体の内部に流入した気液混合体の撹拌作用が高められるので、液体と気体の溶解比率が向上するため、溶解時間を短縮できる気液溶解タンクを提供することが可能となる。 According to the present invention, the stirring means formed in the shape of a bottomed cylinder enhances the stirring action of the gas-liquid mixture flowing into the inside of the tank body, so that the dissolution ratio of the liquid and the gas is improved, so that the dissolution time It becomes possible to provide a gas-liquid dissolution tank that can shorten the time required.

本発明である気液溶解タンクの縦断面図である。It is a vertical cross-sectional view of the gas-liquid dissolution tank of this invention. 本発明である気液溶解タンクの横断面図である。It is a cross-sectional view of the gas-liquid dissolution tank of this invention.

以下、図面に基づいて本発明の実施形態を説明する。図１において、１は気液溶解タンクであり、タンク本体２と、このタンク本体２の内部に配置される撹拌手段３とから構成される。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a gas-liquid dissolution tank, which is composed of a tank body 2 and a stirring means 3 arranged inside the tank body 2.

タンク本体２は、上部に流入口２ａならびに下部に流出口２ｂを備える略円筒形状を成しており、流入口２ａから流入する気液混合体は、タンク本体３の内部で撹拌され、流出口２ｂから流出するように構成されている。 The tank body 2 has a substantially cylindrical shape having an inflow port 2a in the upper part and an outflow port 2b in the lower part, and the gas-liquid mixture flowing in from the inflow port 2a is agitated inside the tank body 3 and is outflowed. It is configured to flow out of 2b.

図１および図２に示すように、撹拌手段３は、有底円筒状を成しており、タンク本体２の内壁２ｃから内方へ延びる支持部材２ｄによってタンク本体２の内部に配置されている。また、撹拌手段３は、開口部３ａおよび底部３ｂを備えており、その開口部３ａをタンク本体の流入口２ａに所定の間隔を設けて対向させるように配置されている。このため、タンク本体２の流入口２ａから流入した気液混合体は、撹拌手段３の開口部３ａから流入し、底部３ｂに衝突することにより撹拌される。 As shown in FIGS. 1 and 2, the stirring means 3 has a bottomed cylindrical shape, and is arranged inside the tank body 2 by a support member 2d extending inward from the inner wall 2c of the tank body 2. .. Further, the stirring means 3 is provided with an opening 3a and a bottom 3b, and the opening 3a is arranged so as to face the inflow port 2a of the tank body at a predetermined interval. Therefore, the gas-liquid mixture flowing in from the inflow port 2a of the tank body 2 flows in from the opening 3a of the stirring means 3 and is agitated by colliding with the bottom 3b.

また、撹拌手段３は、底部３ｂを除いてパンチングメタルによって形成されている。このため、底部３ｂに衝突した気液混合体は、撹拌手段３の内部からパンチングメタルの小径孔を通過するとき気泡が細分化される。そして、細分化された気泡を含む気液混合体は、タンク本体２の内壁２ｃと撹拌手段３の外壁３ｃとの間に形成される空間へ流れる。 Further, the stirring means 3 is formed of punching metal except for the bottom portion 3b. Therefore, when the gas-liquid mixture colliding with the bottom portion 3b passes through the small-diameter hole of the punching metal from the inside of the stirring means 3, bubbles are subdivided. Then, the gas-liquid mixture containing the subdivided bubbles flows into the space formed between the inner wall 2c of the tank body 2 and the outer wall 3c of the stirring means 3.

撹拌手段３のパンチングメタルによって細分化された気泡のうち、マイクロメートル以下の直径に細分化された微細気泡（以下、このようなサイズの気泡をマイクロバブルという）は、浮上力を失い落下するためタンク本体２の流出口２ｂから排出される。一方、パンチングメタルによって細分化されたものの、マイクロメートル以下の直径に細分化されなかった気泡（以下、このようなサイズの気泡をミリバブルという）は、浮上力を有しているため浮上する。 Among the bubbles subdivided by the punching metal of the stirring means 3, the microbubbles subdivided to a diameter of micrometer or less (hereinafter, bubbles of such a size are referred to as microbubbles) lose their levitation force and fall. It is discharged from the outlet 2b of the tank body 2. On the other hand, bubbles that are subdivided by punching metal but not subdivided to a diameter of micrometer or less (hereinafter, bubbles of such a size are referred to as millibubbles) float because they have a levitation force.

ミリバブルは、タンク本体２の内壁２ｃと撹拌手段３の外壁３ｃとの間に形成される空間を浮上し、再び撹拌手段３の開口部３ａから内部へ流入する。そして、再度パンチングメタルによって気泡が細分化される。このような循環を繰り返すことによって、タンク本体２の内部では液体に対する気体の溶解濃度が高められ、マイクロバブルを大量に含む気液混合体がタンク本体の流出口２ｂから排出される。 The millibubble floats in the space formed between the inner wall 2c of the tank body 2 and the outer wall 3c of the stirring means 3, and flows into the inside again through the opening 3a of the stirring means 3. Then, the bubbles are subdivided again by the punching metal. By repeating such circulation, the dissolved concentration of the gas in the liquid is increased inside the tank body 2, and the gas-liquid mixture containing a large amount of microbubbles is discharged from the outlet 2b of the tank body.

なお、タンク本体２の流入口２ａの内径α、撹拌手段３の内径βおよびタンク本体２の内径γにおいては、これらの内径比α：β：γは、概ね１：２：３に設定されている。この構成により、気液混合体の撹拌効率がより高められるため、溶解時間が短縮できる。 Regarding the inner diameter α of the inflow port 2a of the tank body 2, the inner diameter β of the stirring means 3, and the inner diameter γ of the tank body 2, these inner diameter ratios α: β: γ are set to be approximately 1: 2: 3. There is. With this configuration, the stirring efficiency of the gas-liquid mixture is further improved, so that the dissolution time can be shortened.

また、タンク本体２の流入口２ａと撹拌手段３の開口部３ａとの間隔ｈ１は、タンク本体２の内壁２ｃと撹拌手段３の外壁３ｃとの間隔ｈ２と概ね同一に設定されている。この構成により、気液混合体が円滑に循環するため、撹拌効率が高められる。 Further, the distance h1 between the inflow port 2a of the tank body 2 and the opening 3a of the stirring means 3 is set to be substantially the same as the distance h2 between the inner wall 2c of the tank body 2 and the outer wall 3c of the stirring means 3. With this configuration, the gas-liquid mixture circulates smoothly, so that the stirring efficiency is improved.

また、撹拌手段の全長は、タンク本体２の内部の全長の半分以上に設定されているため、パンチングメタルによる気泡の細分化を効率よく行える。 Further, since the total length of the stirring means is set to more than half of the total length inside the tank body 2, the bubbles can be efficiently subdivided by the punching metal.

なお、本発明の各部の具体的な構成は、上述した実施形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲で種々変形が可能である。 The specific configuration of each part of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

１ 気液溶解タンク
２ タンク本体
２ａ 流入口
２ｂ 流出口
２ｃ 内壁
３ 撹拌手段
３ａ 開口部
３ｂ 底部
３ｃ 外壁
1 Gas-liquid dissolution tank 2 Tank body 2a Inlet 2b Outlet 2c Inner wall 3 Stirring means 3a Opening 3b Bottom 3c Outer wall

Claims (4)

気液混合体の流入口および流出口を有するタンク本体と、タンク本体の内部に配置され、流入口から流入した気液混合体を撹拌させる撹拌手段とを備える気液溶解タンクにおいて、
撹拌手段は、開口部および底部を有する有底筒状を成し、その開口部をタンク本体の流入口に所定の間隔を設けて対向させるように配置することにより、流入口から流入した気液混合体を当該撹拌手段の底部に衝突させて撹拌させるように構成したことを特徴とする気液溶解タンク。 In a gas-liquid dissolution tank provided with a tank body having an inlet and an outlet for the gas-liquid mixture and a stirring means arranged inside the tank body for stirring the gas-liquid mixture flowing in from the inlet.
The stirring means has a bottomed tubular shape having an opening and a bottom, and the openings are arranged so as to face the inflow port of the tank body at a predetermined interval, so that the air or liquid flowing in from the inflow port is opposed to each other. A gas-liquid dissolution tank characterized in that the mixture is configured to collide with the bottom of the stirring means to be stirred. タンク本体の流入口、撹拌手段およびタンク本体の内径比は、概ね１：２：３に設定されていることを特徴とする請求項１に記載の気液溶解タンク。 The gas-liquid dissolution tank according to claim 1, wherein the inflow port of the tank body, the stirring means, and the inner diameter ratio of the tank body are set to be approximately 1: 2: 3. タンク本体の流入口と撹拌手段の開口部との間隔は、タンク本体の内壁と撹拌手段の外壁との間隔と概ね同一に設定されていることを特徴とする請求項１又は２に記載の気液溶解タンク。 The gas according to claim 1 or 2, wherein the distance between the inflow port of the tank body and the opening of the stirring means is set to be substantially the same as the distance between the inner wall of the tank body and the outer wall of the stirring means. Liquid dissolution tank. 撹拌手段は、パンチングメタルで構成されていることを特徴とする請求項１乃至３の何れかに記載の気液溶解タンク。
The gas-liquid dissolution tank according to any one of claims 1 to 3, wherein the stirring means is made of punching metal.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020195939A (en) * 2019-05-31 2020-12-10 日東精工株式会社 Gas-liquid dissolution tank

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100071A (en) * 1975-12-10 1978-07-11 Sulzer Brothers Limited Apparatus for the treatment of liquids
JP2010269299A (en) * 2009-05-21 2010-12-02 Yasumasa Nishiyama Gas dissolving device
JP2014014796A (en) * 2012-07-11 2014-01-30 Shinyu Giken Kk Fluid circulation mixing device
JP2018502716A (en) * 2014-11-10 2018-02-01 ヒューアンス カンパニー リミテッド Hydrogen water production system
JP2018051533A (en) * 2016-09-30 2018-04-05 カーリットホールディングス株式会社 Hydrogen water production apparatus and production method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100071A (en) * 1975-12-10 1978-07-11 Sulzer Brothers Limited Apparatus for the treatment of liquids
JP2010269299A (en) * 2009-05-21 2010-12-02 Yasumasa Nishiyama Gas dissolving device
JP2014014796A (en) * 2012-07-11 2014-01-30 Shinyu Giken Kk Fluid circulation mixing device
JP2018502716A (en) * 2014-11-10 2018-02-01 ヒューアンス カンパニー リミテッド Hydrogen water production system
JP2018051533A (en) * 2016-09-30 2018-04-05 カーリットホールディングス株式会社 Hydrogen water production apparatus and production method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020195939A (en) * 2019-05-31 2020-12-10 日東精工株式会社 Gas-liquid dissolution tank

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