JPH0334974B2 - - Google Patents

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Publication number
JPH0334974B2
JPH0334974B2 JP62141109A JP14110987A JPH0334974B2 JP H0334974 B2 JPH0334974 B2 JP H0334974B2 JP 62141109 A JP62141109 A JP 62141109A JP 14110987 A JP14110987 A JP 14110987A JP H0334974 B2 JPH0334974 B2 JP H0334974B2
Authority
JP
Japan
Prior art keywords
liquid
gas
gap
cylinder
inner cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP62141109A
Other languages
Japanese (ja)
Other versions
JPS63305925A (en
Inventor
Shuzo Kamata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP62141109A priority Critical patent/JPS63305925A/en
Publication of JPS63305925A publication Critical patent/JPS63305925A/en
Publication of JPH0334974B2 publication Critical patent/JPH0334974B2/ja
Granted legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2331Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2331Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
    • B01F23/23311Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements through a hollow stirrer axis

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、液体中に気体をより効率良く溶け込
ませるようにした気液撹拌混合装置に関するもの
である。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a gas-liquid stirring and mixing device that allows gas to be more efficiently dissolved in a liquid.

〔従来の技術〕[Conventional technology]

水等の液体中に空気等の気体を溶け込ませる装
置としては、コンプレツサーまたはブロアーを用
いて液中に配設されたパイプ内に気体を圧送し、
このパイプに設けられた多数の小孔から気体を液
体中に気泡として噴出させるものとか、液面部で
モータ等の駆動装置により水車を回転させて激し
いしぶきを発生させ、このしぶきにより多数の気
泡を液中に掻き込むものとかがあるが、これらの
装置により得られる液中での気泡は、あまりにも
大きいために、気泡自体の持つ浮力により短時間
の内に液面まで浮上してしまい、気体が液体に溶
け込むのに充分な時間の間、気泡を液中に止めて
おくことができなかつた。
As a device for dissolving gas such as air into liquid such as water, a compressor or blower is used to forcefully feed the gas into a pipe installed in the liquid.
This pipe has many small holes in which gas is ejected into the liquid as bubbles, or a water wheel is rotated by a motor or other drive device at the liquid level to generate intense spray, and this spray creates a large number of bubbles. However, the bubbles in the liquid obtained by these devices are so large that they rise to the surface of the liquid within a short time due to the buoyancy of the bubbles themselves. It was not possible to keep the bubbles in the liquid long enough for the gas to dissolve into the liquid.

この上記した液体と気体との撹拌混合装置は、
養殖、浄水等の多方面において使用されているの
であるが、気体を液体内により大量に溶け込ませ
ることができる撹拌混合装置の出現が強く望まれ
ていた。
The above-mentioned stirring and mixing device for liquid and gas is
Although it is used in many fields such as aquaculture and water purification, there has been a strong desire for a stirring and mixing device that can dissolve a larger amount of gas into a liquid.

特に、鰻の養殖の場合のように、養殖池の水の
出入りがほとんどない場合には、前記した撹拌混
合装置では、水中への空気の溶け込みが少ないの
で、撹拌混合装置を連続駆動させていても短時間
の内に水中のアンモニア濃度が高くなるばかりか
アオミドロが発生し、養殖にとつては極めて都合
の悪い自体になることがしばしば生じている。
In particular, when there is little water coming in and out of the aquaculture pond, such as in the case of eel farming, the agitation and mixing device described above has little air dissolution into the water, so the agitation and mixing device is driven continuously. However, in a short period of time, not only does the ammonia concentration in the water increase, but also blue-green algae appear, which is extremely inconvenient for aquaculture.

この不都合を解消するため、本発明者は、上記
した従来技術の欠点、不都合を解消する発明(特
公昭61−36448号公報)を先に提案した。
In order to eliminate this inconvenience, the present inventor first proposed an invention (Japanese Patent Publication No. 36448/1983) that eliminates the drawbacks and inconveniences of the prior art described above.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

この特公昭61−36448号公報に示された技術は、
撹拌混合される気体雰囲気中に開口した上端開口
部を撹拌混合される液体液面上に突出位置させて
配置された直線円筒形状の外筒体と、この外筒体
の全長にわたり同軸心状に挿入組付けされ、高速
で回転駆動される直線円柱形状の駆動体とから成
り、外筒体と駆動体との間の間隙を、駆動体の高
速回転時に液体が間隙内に侵入位置することがで
きる範囲で、できる限り小さい値に設定した構成
となつている。
The technology shown in this Japanese Patent Publication No. 61-36448 is
A straight cylindrical outer cylinder whose upper end opening into the gas atmosphere to be stirred and mixed projects above the surface of the liquid to be stirred and mixed; It consists of a straight cylindrical driving body that is inserted and assembled and driven to rotate at high speed, and the gap between the outer cylinder and the driving body is such that liquid can not enter the gap when the driving body rotates at high speed. The configuration is set to the lowest possible value within the possible range.

この特公昭61−36448号公報は、液体に比べて
はるかに比重の小さい気体であつても、極めて小
さい気泡状となつて液体中に位置する場合には、
ブラウン運動に似た現象により、気泡に作用する
浮力に打ち勝つて長時間の間、液中に不規則に遊
動しながら位置することができると云うことに着
眼し、気体雰囲気中の液体を激しく渦流運動させ
ることにより液体中に気体の極めて小さい気泡を
発生させ、この極めて小さいかつ多数の気泡を液
体内に長時間位置させることにより、気体の液体
内への溶け込みを、極めて効率良く達成するもの
となつており、外筒体の下端開口部分から液体を
間隙内に侵入位置させると共に、この間隙内の液
体を、駆動体の高速回転運動により発生する激し
い渦流運動により気体と撹拌混合し、この撹拌混
合により発生する多数の細かい気泡を含んだ液体
を外筒体の下端開口部分から下方に放出する。
This Japanese Patent Publication No. 61-36448 states that even if a gas has a much lower specific gravity than a liquid, if it is located in the liquid in the form of extremely small bubbles,
Focusing on the fact that a phenomenon similar to Brownian motion allows bubbles to overcome the buoyant force acting on them and stay in the liquid for long periods of time while floating irregularly, they created a violent vortex flow in the liquid in the gas atmosphere. By causing the liquid to move, extremely small gas bubbles are generated in the liquid, and by allowing these extremely small and numerous gas bubbles to remain in the liquid for a long period of time, the dissolution of the gas into the liquid is achieved extremely efficiently. The liquid enters the gap from the opening at the lower end of the outer cylinder, and the liquid in the gap is stirred and mixed with the gas by the intense vortex movement generated by the high-speed rotational movement of the driving body. The liquid containing a large number of fine bubbles generated by the mixing is discharged downward from the opening at the lower end of the outer cylinder.

このように、間隙内への液体の供給は、多数の
細かい気泡を含んだ液体の放出口である外筒体下
端開口部から行われるものとなつているので、駆
動体の高速回転中における間隙内の液面位置はど
うしても低くなり、このため間隙内に位置して駆
動体により撹拌される液体の実質の高さは、外筒
体と駆動体との間に形成される間隙の高さに比べ
て小さい値となつてしまい、これによつて液体に
対する実質的な撹拌時間が短くなつて、充分に小
さい気泡を多数発生させることができないと云う
不満が生じることになつていた。
In this way, the liquid is supplied into the gap from the opening at the lower end of the outer cylinder body, which is the discharge port for the liquid containing many small bubbles, so that the gap during high-speed rotation of the drive body is The liquid level within the cylinder inevitably becomes low, and therefore the actual height of the liquid located within the gap and agitated by the driving body is equal to the height of the gap formed between the external cylinder and the driving body. This results in a relatively small value, which shortens the actual stirring time for the liquid, leading to complaints that a large number of sufficiently small bubbles cannot be generated.

もちろん、外筒体および駆動体の長さを充分に
大きくすることにより間隙内の液体の高さを、充
分に小さい気泡を多数発生させることができる値
にすることはできるのであるが、外筒体および駆
動体の高さを増大すればするほど、高速回転駆動
される駆動体および外筒体の振動およびぶれ等の
完全な発生防止と云う機械的な製造上の制約、お
よび液体の深度の増大と云う設置条件の制約を受
けることになつて、その実施が極めて困難になつ
てしまう。
Of course, by making the lengths of the outer cylinder and the driving body sufficiently large, the height of the liquid in the gap can be made to a value that can generate a large number of sufficiently small bubbles. As the height of the body and the driving body increases, mechanical manufacturing constraints such as completely preventing vibration and shaking of the driving body and the outer cylindrical body that are rotated at high speed and the depth of the liquid increase. Due to the restrictions of installation conditions such as increase in number of devices, implementation becomes extremely difficult.

また、間隙内から放出される液体と、間隙内に
侵入しようとする液体とが、相互に逆方向に流動
することになつて相互に制動作用をかけることに
なるので、撹拌された液体の放出される勢いが弱
められることになり、このため撹拌された液体を
遠方まで放散させることができなくなると云う不
満がある。
In addition, the liquid released from the gap and the liquid trying to enter the gap flow in opposite directions and exert a braking effect on each other, so that the agitated liquid is released. There is a complaint that the force with which the liquid is stirred is weakened, and therefore the stirred liquid cannot be dispersed over a long distance.

さらに、液体と撹拌混合される気体は、間隙内
の液体の渦流によりこの間隙内に引き込まれる気
体だけであるので、単位時間内に液体内に放出さ
れる気体の絶対量を大きくすることができないと
云う不満があつた。
Furthermore, the only gas that is stirred and mixed with the liquid is the gas that is drawn into the gap by the vortex flow of the liquid in the gap, so it is not possible to increase the absolute amount of gas released into the liquid within a unit time. There was some dissatisfaction.

例えば、内径61mmで、水面下の高さ930mmに調
整された外筒体に、径35mmで、水面下の高さ1070
mmに調整した駆動体を組付けて構成した装置を、
8000〜11000〔rpm〕で回転駆動すると、液体と気
体とを撹拌混合する実質的な部分の長さである運
転中の間隙内の水位は、外筒体の下端開口部から
450〜500mm程度と大幅に減少してしまい、このた
め成形される気泡の径は10-1〜10-4mm程度と大き
く、またこの成形された気泡の外筒体下端開口部
からの放出勢いも、渦流成形のための距離が不足
していることおよび間隙内への流入液体にその放
出動作を阻害されることとによつて、予想以上に
弱いものとなつてしまつている。このように、成
形される気泡の径が大きいことと、放出勢いが弱
いこととによつて、水中に放出された気泡は、比
較的短い時間の内に装置の周囲ほぼ5mの範囲内
の水面に浮上してしまつていた。
For example, an outer cylinder with an inner diameter of 61 mm and a height below the water surface of 930 mm has a diameter of 35 mm and a height below the water surface of 1070 mm.
A device constructed by assembling a drive body adjusted to mm,
When rotating at 8,000 to 11,000 [rpm], the water level in the gap during operation, which is the length of the substantial part where liquid and gas are stirred and mixed, is from the lower end opening of the outer cylinder.
As a result, the diameter of the formed bubbles is large, approximately 10 -1 to 10 -4 mm, and the force of release of the formed bubbles from the opening at the bottom of the outer cylinder is large. However, the gap is weaker than expected due to the lack of distance for swirl forming and the liquid flowing into the gap obstructing the discharge operation. In this way, due to the large diameter of the formed bubbles and the weak release force, the bubbles released into the water can reach the water surface within a range of approximately 5 meters around the device within a relatively short period of time. It had surfaced.

さらに、駆動体の高速回転動作により得られる
気体と液体との混合流体は、液体の渦流動作によ
り間隙内から放出されるものであるので、その放
出方向は下方となり、平面的により広い範囲に放
散させることができない不満があつた。
Furthermore, since the mixed fluid of gas and liquid obtained by the high-speed rotation of the driving body is released from the gap due to the vortex action of the liquid, its release direction is downward and is spread over a wider area in a plane. I was dissatisfied with my inability to do so.

本発明は、上記した従来の欠点、不都合を解消
すべく創案されたもので、撹拌混合されて多数の
極めて細かい気泡となつた気体と一緒に間隙内か
ら下方に放出される液体を、この間隙内の水位の
下降動作を利用することにより間隙内に供給する
と共に、この液体の間隙内への供給動作が気体と
液体との混合流体の放出動作に支障を与えないよ
うにし、さらに間隙内から下方に放出される気体
と液体との混合流体の放射方向への放散をより強
力に達成することを、その技術的課題とする。
The present invention has been devised to solve the above-mentioned conventional drawbacks and inconveniences, and the present invention has been devised to eliminate the above-mentioned conventional drawbacks and inconveniences. By utilizing the downward movement of the water level within the gap, the liquid is supplied into the gap, and this supply operation into the gap does not interfere with the discharge operation of the mixed fluid of gas and liquid. The technical problem is to achieve stronger radial dissipation of the mixed fluid of gas and liquid discharged downward.

〔問題点を解決するための手段〕[Means for solving problems]

以下、本発明を、本発明の一実施例を示す図面
を参照しながら説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to drawings showing one embodiment of the present invention.

本発明の手段は、 液体と撹拌混合される気体雰囲気中に開口した
上端開口部4を撹拌混合される液体液面上に突出
位置させて配置され、液体内における筒壁3の上
部に窓孔6を開孔した直線円筒形状の外筒体2を
有すること、 この外筒体2よりも大きな長さを有すると共に
極めて円滑な外周面を有し、外筒体2内にこの外
筒体2の全長にわたり同軸心状に挿入組付けさ
れ、外筒体2の下端開口部5直下に位置した部分
に多数の細孔8aを有する噴気筒部8を有し、外
周面の周速が11m/sec以上の高速で回転駆動さ
れる下端を閉鎖された直線円筒形状の内筒体1を
有すること、 この内筒体1内に気体を圧入するコンプレツサ
ー17を有すること、 そして内筒体1と外筒体2との間に形成される
間隙7を、内筒体1の高速回転時に液体がこの間
隙7内に侵入位置することのできる範囲で、でき
る限り小さい値に設定すること、 にある。
The means of the present invention is arranged so that the upper end opening 4, which opens into the gas atmosphere to be stirred and mixed with the liquid, protrudes above the surface of the liquid to be stirred and mixed, and a window hole is formed in the upper part of the cylindrical wall 3 in the liquid. 6. The outer cylinder 2 has a linear cylindrical shape with holes, and has a longer length than the outer cylinder 2 and an extremely smooth outer circumferential surface. It is inserted and assembled coaxially over the entire length of the outer cylindrical body 2, and has an injection pipe portion 8 having a large number of pores 8a in a portion located directly below the lower end opening 5 of the outer cylinder 2, and has a circumferential speed of 11 m/min on the outer circumferential surface. It has a straight cylindrical inner cylinder body 1 with a closed lower end that is rotated at a high speed of sec or higher, a compressor 17 that pressurizes gas into the inner cylinder body 1, and a compressor 17 that presses gas into the inner cylinder body 1. The purpose is to set the gap 7 formed between the inner cylinder body 1 and the cylinder body 2 to the smallest possible value within a range that allows liquid to enter the gap 7 when the inner cylinder body 1 rotates at high speed.

〔作用〕[Effect]

上記した構成にあつて、内筒体1と外筒体2と
の間に形成される間隙7内には、外筒体2の筒壁
3の窓孔6および外筒体2の下端開口部5から液
体が侵入位置すると共に、この間隙7は、外筒体
2の上端開口部4が常時気体雰囲気中に開放した
状態にあるので、必要時にこの上端開口部4から
気体が供給される状態にある。
In the above structure, in the gap 7 formed between the inner cylinder 1 and the outer cylinder 2, there are a window hole 6 in the cylinder wall 3 of the outer cylinder 2 and a lower end opening of the outer cylinder 2. Since the upper end opening 4 of the outer cylindrical body 2 is always open to the gas atmosphere, this gap 7 is in a state where gas is supplied from the upper end opening 4 when necessary. It is in.

この状態から内筒体1を、その外周面の周速が
11m/sec以上の高速で回転駆動させると、内筒
体1の円滑な外周面に接触している間隙7内の液
体および気体は、この内筒体1の高速回転動作に
従つて激しい渦流運動をし、相互に激しく撹拌さ
れると共に、この激しい撹拌作用により気体は細
分化されることになり、またこの渦流運動により
液体と気体との撹拌混合物は間隙7内から下方に
噴出されることになる。
From this state, the circumferential speed of the outer circumferential surface of the inner cylinder 1 is
When driven to rotate at a high speed of 11 m/sec or more, the liquid and gas in the gap 7 that is in contact with the smooth outer circumferential surface of the inner cylinder 1 undergoes intense vortex motion as the inner cylinder 1 rotates at high speed. The liquid and gas are violently stirred together, and the gas is fragmented due to this violent stirring action, and the stirred mixture of liquid and gas is ejected downward from the gap 7 due to this vortex movement. Become.

また、内筒体1の高速回転駆動と同時にコンプ
レツサー17が駆動され、内筒体1内に加圧気体
を圧入しているので、この内筒体1内に圧入され
た気体は、コンプレツサー17による圧入圧力と
内筒体1の高速回転運動とにより、噴気筒部8の
細孔8aから放射方向に勢い良く液体中に噴出さ
れる。この噴気筒部8の細孔8aから液体中に噴
出される気体は、内筒体1が高速回転動作によつ
て、細孔8aから液体中に出た途端に細分化され
ることになり、細分化された状態で放射方向に勢
い良く放出される。
In addition, the compressor 17 is driven at the same time as the inner cylinder 1 is driven to rotate at high speed, and pressurized gas is injected into the inner cylinder 1. Due to the press-fitting pressure and the high-speed rotational movement of the inner cylinder 1, the liquid is vigorously ejected from the pores 8a of the injection cylinder portion 8 in the radial direction into the liquid. The gas ejected into the liquid from the pores 8a of the injection cylinder portion 8 is fragmented as soon as it exits into the liquid from the pores 8a due to the high-speed rotation of the inner cylinder 1. , is emitted vigorously in the radial direction in a finely divided state.

すなわち、外筒体2の下端開口部5からは、間
隙7内で液体と撹拌混合されて細分化された気体
の気泡と液体との混合物と、噴気筒部8の細孔8
aから細分化されて噴出される気体とが、一緒に
なつて放出されることになるのであるが、細孔8
aから噴出される気体の噴出方向が内筒体1に対
して放射方向であるので、下方に向かつて流出し
ようとする間隙7内の液体と気体との撹拌混合物
は、この細孔8aから勢い良く噴出される気体の
勢いによりその放出方向を放射方向に矯正されて
放出されることになる。
That is, from the lower end opening 5 of the outer cylindrical body 2, a mixture of gas bubbles and liquid, which have been agitated and mixed with the liquid in the gap 7 to be finely divided, and the pores 8 of the injection tube part 8 are released.
The gas that is fragmented and ejected from a is released together with the gas from the pore 8.
Since the direction of the gas ejected from a is radial to the inner cylinder 1, the agitated mixture of liquid and gas within the gap 7 that is about to flow downward is forced out of the pores 8a. Due to the force of the well-blown gas, the direction of release is corrected in the radial direction and the gas is released.

このように、間隙7内の液体および気体は、内
筒体1の高速回転動作により、外筒体2の下端開
口部5から液体中に放出されるため、この間隙7
内の液面位は低下して間隙7内の液体の量が減少
することになるが、間隙7内の液体の量が減少す
ると、窓孔6を通つて液体が間隙7内に流入する
ので、間隙7内の液面位が窓孔6よりも下位にな
ることがなく、常に一定の液面位を保持し、もつ
て気体の液体との撹拌混合のために作用する間隙
7の高さ領域を確保している。
In this way, the liquid and gas in the gap 7 are discharged into the liquid from the lower end opening 5 of the outer cylinder 2 due to the high-speed rotating operation of the inner cylinder 1.
The liquid level in the gap 7 will drop and the amount of liquid in the gap 7 will decrease, but when the amount of liquid in the gap 7 decreases, the liquid will flow into the gap 7 through the window hole 6. , the height of the gap 7 so that the liquid level in the gap 7 never becomes lower than the window hole 6, always maintains a constant liquid level, and acts for stirring and mixing the gas with the liquid. The area is secured.

また、上記したように、間隙7内への新たな液
体の流入は、外筒体2の筒壁3の上端部分に開口
形成された窓孔6から達成されるので、間隙7内
に流入する液体の流入動作が、外筒体2の下端開
口部5から流出する液体と気体との撹拌混合物の
放出動作に影響を与えることがなく、このため間
隙7内の上記した混合物は、間隙7内に流入する
液体に阻害されることなしに円滑に放出されるこ
とになる。
Furthermore, as described above, new liquid flows into the gap 7 through the window hole 6 formed in the upper end portion of the cylindrical wall 3 of the outer cylindrical body 2. The inflow operation of the liquid does not affect the discharge operation of the stirred mixture of liquid and gas flowing out from the lower end opening 5 of the outer cylinder 2, and therefore the above-mentioned mixture in the gap 7 is The liquid will be released smoothly without being hindered by the liquid flowing into it.

さらに、間隙7内で成形された液体と気体との
混合物、すなわち極めて細かい多数の気泡は、間
隙7内の液体の渦流動作による放出力だけにより
外筒体2の下端開口部5から液体中に放出される
のではなく、噴気筒部8の多数の細孔8aから勢
い良く放射方向に放出される多数の細かい気泡と
一緒に放出されるので、その放射方向への放出勢
いが極めて増強されることになり、これによつて
成形される細かい気泡は液体中でより遠い箇所ま
で到達することになる。
Furthermore, the mixture of liquid and gas formed in the gap 7, that is, a large number of very fine bubbles, is released from the lower end opening 5 of the outer cylinder 2 into the liquid only by the ejection force caused by the swirling action of the liquid in the gap 7. Rather than being ejected, it is ejected together with a large number of fine bubbles that are vigorously ejected in the radial direction from the large number of pores 8a of the injection cylinder section 8, so that the ejection force in the radial direction is extremely enhanced. This means that the fine bubbles that are formed will reach further away in the liquid.

またさらに、液体内に放出される気体は、間隙
7内で液体と撹拌混合される気体に加えて、内筒
体1を通つて噴気筒部8から噴出される気体があ
るので、単位時間内に液体内に放射される気体の
量は充分に多くなり、それだけ気体の液体中への
溶け込みを効率良く達成できることになる。
Furthermore, the gas released into the liquid includes, in addition to the gas that is stirred and mixed with the liquid within the gap 7, the gas that is ejected from the injection pipe section 8 through the inner cylinder 1, so that the gas is emitted within a unit time. The amount of gas radiated into the liquid becomes sufficiently large, and the more efficiently the gas can be dissolved into the liquid.

なお、内筒体1は極めて高速で回転駆動される
が、このためこの内筒体1と液体との間には大き
な抵抗が発生することになるが、内筒体1の外周
面を極めて円滑な面に研磨加工しているので、こ
の内筒体1と液体との間に発生する摩擦を小さい
ものとすることができ、これによつて内筒体1を
高速回転させた際に、この内筒体1に液体との摩
擦により激しい振動を発生させることを防止する
ことができ、内筒体1の円滑な高速回転運転を達
成できることになる。
Note that the inner cylindrical body 1 is rotated at an extremely high speed, and therefore a large resistance is generated between the inner cylindrical body 1 and the liquid. Since the surface is polished, it is possible to reduce the friction generated between the inner cylinder 1 and the liquid, so that when the inner cylinder 1 is rotated at high speed, this It is possible to prevent the inner cylindrical body 1 from generating severe vibrations due to friction with the liquid, and it is possible to achieve smooth high-speed rotational operation of the inner cylindrical body 1.

〔実施例〕〔Example〕

以下の説明においては、液体として水を、気体
として空気を使用した場合について説明する。
In the following description, a case will be described in which water is used as a liquid and air is used as a gas.

第1図図示実施例の場合、水面直上に不動に配
置されたベース板11上に間隔を開けて取付け板
12を配置し、この取付け板12上に、内筒体1
の回転駆動源であるモータ13と、内筒体1を安
定した姿勢で高速回転可能に支持する軸受体16
と、そしてこの軸受体16に支持された内筒体1
内に空気を圧送するコンプレツサー17とが配置
固定され、これらのモータ13、軸受体16そし
てコンプレツサー17は取付け板12に取付けら
れるカバー体18により覆わている。
In the case of the embodiment shown in FIG.
A motor 13 is a rotational drive source for the inner cylinder body 1, and a bearing body 16 supports the inner cylinder body 1 in a stable posture so as to be rotatable at high speed.
and the inner cylindrical body 1 supported by this bearing body 16
A compressor 17 for pumping air inside is arranged and fixed, and these motor 13, bearing body 16 and compressor 17 are covered by a cover body 18 attached to the mounting plate 12.

モータ13の出力軸にはプーリ14が固定され
ており、このプーリ14とベース板11上に突出
位置した内筒体1の上端部分に組付け固定された
プーリ15との間にベルトを掛け渡すことによ
り、モータ13で内筒体1を高速回転駆動するよ
うにしている。
A pulley 14 is fixed to the output shaft of the motor 13, and a belt is passed between this pulley 14 and a pulley 15 assembled and fixed to the upper end portion of the inner cylinder 1 protruding from the base plate 11. This allows the motor 13 to rotate the inner cylinder 1 at high speed.

外筒体2は、その上端開口部4を開放した状態
で上端をベース板11に固定していると共に、下
端をベース板11に不動に固定された支持体10
に固定しており、内筒体1も閉鎖した下端に固定
された軸ピン9を、この支持体10に軸受を介し
て回転自在に固定し、もつて高速回転する内筒体
1に振動が発生するのを確実に防止している。
The outer cylindrical body 2 has an upper end fixed to the base plate 11 with the upper end opening 4 open, and a support 10 immovably fixed to the base plate 11 at the lower end.
The shaft pin 9, which is fixed to the lower end of the closed inner cylinder body 1, is rotatably fixed to this support body 10 via a bearing, thereby preventing vibrations from occurring in the inner cylinder body 1, which rotates at high speed. We are definitely preventing this from happening.

第2図に示した噴気筒部8は、その外径を内筒
体1の本体部分の外径よりもわずかに大きい値に
設定し、もつて噴気筒部8上端部に段部を形成し
ているが、これは間隙7内を下降してくる多数の
極めて細かい気泡の流動方向を、この段部の作用
により少しでも放射方向に変更させ、もつて間隙
7内で成形された多数の極めて細かい気泡に対す
る噴気筒部8の細孔8aから噴出される細かい気
泡による放射方向への放出効果を高めるようにし
ている。
The injection tube section 8 shown in FIG. 2 has its outer diameter set to a value slightly larger than the outer diameter of the main body portion of the inner cylinder 1, thereby forming a stepped portion at the upper end of the injection tube section 8. However, this is because the flow direction of the many extremely fine bubbles descending within the gap 7 is changed even slightly to the radial direction by the action of this step, and the many extremely fine bubbles formed within the gap 7 are The effect of ejecting fine bubbles in the radial direction by the fine bubbles ejected from the pores 8a of the injection cylinder section 8 is enhanced.

なお、窓孔6に設けられたネツト6aは、この
窓孔6を通つて間隙7内に侵入する水と一緒に固
形物であるごみが間隙7内に侵入するのを防止す
るためのもので、間隙7内に固形物が侵入する
と、高速回転している内筒体1の動作に重大な支
障を生じさせるからである。
The net 6a provided in the window hole 6 is intended to prevent solid waste from entering the gap 7 together with water entering the gap 7 through the window hole 6. This is because if solid matter enters the gap 7, it will cause a serious hindrance to the operation of the inner cylindrical body 1 which is rotating at high speed.

また、第3図に示した実施例は、モータ13と
して水中モータを使用した場合を示すもので、モ
ータ13に脚片19を設け、装置全体を直接水底
に設置することができるようにしている。この第
3図図示実施例の場合、モータ13の出力軸に直
接内筒体1を結合して回転駆動しているので、第
1図図示実施例のようにベルトを利用した場合の
ように、ベルトが切断することによる動作上の不
都合の発生を事前になくすことができる。
Further, the embodiment shown in FIG. 3 shows a case where an underwater motor is used as the motor 13, and the motor 13 is provided with leg pieces 19 so that the entire device can be installed directly on the bottom of the water. . In the case of the embodiment shown in FIG. 3, the inner cylindrical body 1 is directly coupled to the output shaft of the motor 13 for rotational driving, so that, as in the embodiment shown in FIG. Operational inconveniences caused by belt breakage can be prevented in advance.

次に、本発明装置の運転例を示す。 Next, an example of operation of the apparatus of the present invention will be shown.

ほぼ長方形となつた広さ264m2、深さ1.3mの養
魚池で、水面はアオミドロで覆われており、池内
に長期間にわたり飼われている鰻、鯉、鮒等の多
数の魚類の全てには脊椎の曲がりの奇形が生じて
いると共に、皮膚病による白い斑点ができてい
た。
It is a nearly rectangular fish pond with an area of 264 m 2 and a depth of 1.3 m.The water surface is covered with bluefin grass, and the large number of fish such as eels, carp, and carp that are kept in the pond for a long time are all protected. He had a deformed spine and white spots caused by a skin disease.

この養魚池の一方端部に、内径61mm、水面下の
高さ930mmの外筒体2に、外径30mm、水面下の高
さ1070mm、噴気筒部8の高さ幅40mmそして細孔8
aを開口径を0.5mmとした内筒体1を組付けて構
成した本発明装置を設置し、内筒体1を7000
〔rpm〕で回転駆動すると共に、コンプレツサー
17により2〜3気圧に圧縮した空気を内筒体1
内に圧送して運転したところ、20時間後には、ア
オミドロは全て死滅して沈澱し、池の水は透明と
なつた。また、池内の魚は、本発明装置の運転当
初、装置周辺に集まるだけであつたが、次第に餌
を食べるようになつた。
At one end of this fishpond, there is an outer cylinder 2 with an inner diameter of 61 mm and a height below the water surface of 930 mm;
The device of the present invention, which is constructed by assembling the inner cylinder 1 with an opening diameter of 0.5 mm, is installed, and the inner cylinder 1 has a diameter of 7000 mm.
[rpm] and compressed air to 2 to 3 atmospheres by a compressor 17 to the inner cylinder 1.
When the pond was pumped into the pond and operated, 20 hours later, all the bluefins died and settled, and the water in the pond became clear. In addition, when the device of the present invention was first operated, the fish in the pond simply gathered around the device, but gradually they began to eat food.

運転開始の一週間後、魚の皮膚病は完治し、水
の腐敗の最大原因であるアンモニアが消滅してい
た。また、一般に、20℃以上の水温でなければ餌
を食べないとされていた鰻が、本発明装置の運転
後、14℃の水温でも食欲を顕著に示すことが確認
された。
One week after operation started, the skin disease in the fish was completely cured, and ammonia, the main cause of water spoilage, had disappeared. Furthermore, it was confirmed that eels, which are generally said to not eat food unless the water temperature is 20°C or higher, showed a marked appetite even at a water temperature of 14°C after operating the device of the present invention.

測定によると、本発明装置により成形されて水
中に放出される気泡は、その径が最大で10-5mm程
度であり、ほとんどが10-6mm以下であり、下端開
口部5からかなり勢い良く放出されていた。ま
た、本発明装置から20m離れた水面に水を満たし
たコツプを倒立させて位置させておいたところ、
2時間後には、このコツプ内の水は全て空気に置
換された。さらに、水中に強い直進性のある線光
線を照射すると、この光の通過部分は気泡のため
に白い線として視覚されたが、本発明装置の運転
を停止すると、2時間後にこの白い線は視覚でき
なくなり、このことから本発明装置により成形さ
れる気泡は、短くとも2時間の間、水中に位置し
ていることが確認できた。
According to measurements, the diameter of the bubbles formed by the device of the present invention and released into water is approximately 10 -5 mm at maximum, and most of the bubbles are 10 -6 mm or less, and they are released from the lower end opening 5 quite vigorously. It had been released. In addition, when a pot filled with water was placed upside down on the water surface 20 m away from the device of the present invention,
After 2 hours, all of the water in this pot was replaced with air. Furthermore, when a strong linear beam of light was irradiated into the water, the area through which this light passed was visible as a white line due to air bubbles, but when the device of the present invention was stopped, the white line became visible after 2 hours. This confirmed that the bubbles formed by the apparatus of the present invention remained underwater for at least 2 hours.

なお、本発明装置の使用により、魚類の皮膚病
がなぜ完治したかは不明であるが、オゾン発生装
置を本発明装置に組付けて作動させた際における
上記した皮膚病の完治程度が顕著であつたことか
ら、成形された気泡により効率良く水中に溶け込
まされた多量の酸素が何らかの作用を発揮してい
るものと思われる。
Although it is unclear why the skin diseases in fish were completely cured by using the device of the present invention, the degree of complete cure of the above-mentioned skin diseases was remarkable when the ozone generator was assembled and operated in the device of the present invention. It seems that the large amount of oxygen that was efficiently dissolved into the water by the formed air bubbles exerted some effect.

〔発明の効果〕〔Effect of the invention〕

以上の説明から明らかなごとく、本発明は、極
めて細かい多数の気泡を常に多量に安定した状態
で成形することができるので、液体への気体の溶
け込みを極めて効率良く達成でき、またこの成形
した多数の極めて細かい気泡をより遠くまで放出
することができるので、より広い範囲の液体に気
体を溶け込ませることができ、さらにこの放出さ
れる多数の気泡の放出勢いが良いので、例え淀ん
だ状態にある液体であつても、本発明装置の作動
によりほぼ一定した流動を生じることになり、こ
れによつて液体全体に均一に気体を溶け込ませる
ことができる等多くの優れた効果を発揮するもの
である。
As is clear from the above description, the present invention is capable of molding a large number of extremely fine bubbles in a stable state at all times, so that gas dissolution into the liquid can be achieved extremely efficiently. The extremely fine air bubbles can be ejected over a longer distance, allowing the gas to be dissolved in a wider range of liquid.Furthermore, the large number of emitted air bubbles can be released with good force, even if the liquid is in a stagnant state. Even if it is a liquid, the operation of the device of the present invention produces a nearly constant flow, which provides many excellent effects such as being able to uniformly dissolve gas throughout the liquid. .

【図面の簡単な説明】[Brief explanation of drawings]

第1図は、本発明装置の一実施例を示す一部破
断した正面図である。第2図は、第1図中の噴気
筒部の構成をより明確に示す縦断面図である。第
3図は、本発明装置の他の実施例を示すもので、
モータとして水中モータを使用した場合の構成例
を示すものである。 符号の説明、1;内筒体、2;外筒体、3;筒
壁、4;上端開口部、5;下端開口部、6;窓
孔、7;間隙、8;噴気筒部、8a;細孔。
FIG. 1 is a partially cutaway front view showing one embodiment of the device of the present invention. FIG. 2 is a longitudinal sectional view showing more clearly the structure of the injection cylinder section in FIG. 1. FIG. 3 shows another embodiment of the device of the present invention,
This shows an example of the configuration when an underwater motor is used as the motor. Explanation of symbols: 1; inner cylinder, 2; outer cylinder, 3; cylinder wall, 4; upper end opening, 5; lower end opening, 6; window hole, 7; gap, 8; injection cylinder part, 8a; pore.

Claims (1)

【特許請求の範囲】 1 液体と撹拌混合される気体雰囲気中に開口し
た上端開口部4を撹拌混合される液体液面上に突
出位置させて配置され、前記液体内における筒壁
3の上部に窓孔6を開孔した直線円筒形状の外筒
体2と、 該外筒体2よりも大きな長さを有すると共に極
めて円滑な外周面を有し、前記外筒体2内に該外
筒体2の全長にわたり同軸心状に挿入組付けさ
れ、前記外筒体2の下端開口部5直下に位置した
部分に多数の細孔8aを有する噴気筒部8を有
し、さらに下端を閉鎖した外周面の周速が11m/
sec以上の高速で回転駆動される直線円筒形状の
内筒体1と、 該内筒体1内に気体を圧入するコンプレツサー
17とから成り、 前記内筒体1と外筒体2との間の間隙7を、前
記内筒体1の高速回転時に前記液体が前記間隙7
内に侵入位置することのできる範囲で、できる限
り小さい値に設定して成る気液撹拌混合装置。
[Scope of Claims] 1. The upper end opening 4, which opens into the gas atmosphere to be stirred and mixed with the liquid, is arranged so as to protrude above the surface of the liquid to be stirred and mixed, and the upper end of the cylinder wall 3 in the liquid is arranged so as to protrude above the liquid surface to be stirred and mixed. An outer cylinder 2 having a straight cylindrical shape with a window hole 6 formed therein, and having a longer length than the outer cylinder 2 and an extremely smooth outer circumferential surface, The outer cylindrical body 2 is inserted and assembled coaxially over the entire length of the outer cylindrical body 2, has an injection pipe portion 8 having a large number of pores 8a in a portion located directly below the lower end opening 5 of the outer cylinder 2, and further has an outer periphery with a closed lower end. The circumferential speed of the surface is 11m/
It consists of a straight cylindrical inner cylinder 1 that is rotated at a high speed of sec or more, and a compressor 17 that pressurizes gas into the inner cylinder 1. The liquid flows into the gap 7 when the inner cylinder body 1 rotates at high speed.
A gas-liquid stirring/mixing device that is set to the lowest possible value within the range that can be inserted into the air.
JP62141109A 1987-06-05 1987-06-05 Gas liquid mixing apparatus Granted JPS63305925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62141109A JPS63305925A (en) 1987-06-05 1987-06-05 Gas liquid mixing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62141109A JPS63305925A (en) 1987-06-05 1987-06-05 Gas liquid mixing apparatus

Publications (2)

Publication Number Publication Date
JPS63305925A JPS63305925A (en) 1988-12-13
JPH0334974B2 true JPH0334974B2 (en) 1991-05-24

Family

ID=15284380

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62141109A Granted JPS63305925A (en) 1987-06-05 1987-06-05 Gas liquid mixing apparatus

Country Status (1)

Country Link
JP (1) JPS63305925A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI365779B (en) * 2007-05-22 2012-06-11 Toshiba Kk Microbubble generating apparatus and method
JP5665392B2 (en) * 2010-07-02 2015-02-04 株式会社西研デバイズ Ultra-fine bubble generator

Also Published As

Publication number Publication date
JPS63305925A (en) 1988-12-13

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