JPH0379055B2 - - Google Patents
Info
- Publication number
- JPH0379055B2 JPH0379055B2 JP62057794A JP5779487A JPH0379055B2 JP H0379055 B2 JPH0379055 B2 JP H0379055B2 JP 62057794 A JP62057794 A JP 62057794A JP 5779487 A JP5779487 A JP 5779487A JP H0379055 B2 JPH0379055 B2 JP H0379055B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- outer shell
- gap
- gas
- water
- 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 - Lifetime
Links
- 239000007788 liquid Substances 0.000 claims description 72
- 238000003756 stirring Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 39
- 239000007789 gas Substances 0.000 description 31
- 230000033001 locomotion Effects 0.000 description 8
- 241000251468 Actinopterygii Species 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000009360 aquaculture Methods 0.000 description 4
- 244000144974 aquaculture Species 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 208000017520 skin disease Diseases 0.000 description 3
- 241000252073 Anguilliformes Species 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000252233 Cyprinus carpio Species 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000005653 Brownian motion process Effects 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 241000519995 Stachys sylvatica Species 0.000 description 1
- 230000036528 appetite Effects 0.000 description 1
- 235000019789 appetite Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005537 brownian motion Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 235000014102 seafood Nutrition 0.000 description 1
Classifications
-
- 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
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2331—Mixing 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
-
- 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
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2331—Mixing 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
- B01F23/23311—Mixing 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
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
ませるようにした液体と気体との攪拌混合装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an apparatus for stirring and mixing liquid and gas, which allows gas to be more efficiently dissolved in liquid.
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攪拌混合装置は、
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
ることのできる攪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、前記した攪拌混
合装置では、水中への空気の溶け込みが少ないの
で、攪拌混合装置を連続駆動させていても短期間
のうち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
合の悪い事態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 concentration of ammonia in the water increase, but also the occurrence of greenworms, which is often 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 disadvantage, the present inventor first proposed an invention (Japanese Patent Publication No. 61-36448) that eliminates the disadvantages and disadvantages of the prior art described above.
この特公昭61−36448号公報に示された技術は、
攪拌混合される気体雰囲気中に開口した上端開口
部を攪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殻体と、この外殻体
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、外殻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 linear cylindrical outer shell is arranged with the upper end opening opening into the gas atmosphere to be stirred and mixed protruding above the liquid level to be stirred and mixed, and the outer shell is coaxially arranged along the entire length of the outer shell. It consists of a straight cylindrical drive body that is inserted and assembled and driven to rotate at high speed, and the gap between the outer shell and the drive body is such that liquid can enter the gap when the drive 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、外殻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攪拌混合し、この攪拌混
合により発生する多数の細かい気泡を含んだ液体
を外殻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 shell, 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 shell.
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殻体下
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
動体により攪拌される液体の実質の高さは、外殻
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
対する実質的な攪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 shell, which is the discharge port for the liquid containing many small bubbles. The liquid level within the outer shell 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 outer shell 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、外殻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、外殻体および駆
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殻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 shell 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 vibrations and shakes of the driving body and the outer shell 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、攪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、このため攪拌された液体を
遠方まで飛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 dissatisfaction that the force of stirring is weakened, and as a result, the stirred liquid cannot be scattered over a long distance.
例えば、内径61mmで、水面下の高さ930mmに調
整された外殻体に、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
体とを攪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、外殻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殻体下端開口部
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 shell 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 agitated and mixed, is from the lower end opening of the outer shell.
As a result, the diameter of the formed bubbles is large, approximately 10 -1 to 10 -4 mm, and the ejection force of the formed bubbles from the opening at the bottom of the outer shell 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.
本発明は、上記した従来の欠点、不都合を解消
するべく発明された液体と気体との攪拌混合装置
であつて、攪拌混合されて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することを、その
技術的課題とするものである。 The present invention is a stirring and mixing device for liquid and gas, which was invented in order to eliminate the above-mentioned conventional drawbacks and inconveniences, and is a device for stirring and mixing liquid and gas, which is discharged downward from the gap together with the gas that has been stirred and mixed into extremely fine bubbles. The liquid to be supplied into the gap is supplied into the gap by utilizing the downward movement of the water level within the gap, and the operation of supplying this liquid into the gap does not interfere with the discharge operation of the mixed fluid of gas and liquid. The technical challenge is to do so.
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.
本発明による液体と気体との攪拌混合装置は、
直線円筒形状の外殻体２と、直線円柱形状の駆動
体１とから構成される。 The stirring and mixing device for liquid and gas according to the present invention includes:
It is composed of a straight cylindrical outer shell 2 and a straight cylindrical driving body 1.
外殻体２は、その筒壁３が、攪拌混合される気
体雰囲気中に開口した上端開口部４を攪拌混合さ
れる液体液面上に突出位置させて配置され、液体
内における前記した筒壁３の上部に窓孔６を開孔
した構造となつている。 The outer shell body 2 is arranged such that its cylindrical wall 3 has an upper end opening 4 that opens into the gas atmosphere to be stirred and mixed, and is located in a protruding position above the liquid level to be stirred and mixed, and the cylindrical wall 3 in the liquid 3 has a structure in which a window hole 6 is opened in the upper part thereof.
また、駆動体１は、上記した外殻体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
有した構造となつており、外殻体２内にこの外殻
体２の全長にわたり同軸心状に挿入組付けされ、
8000〔rpm〕以上の高速で回転駆動される。 The driving body 1 has a longer length than the outer shell 2 described above and has an extremely smooth outer circumferential surface. Inserted and assembled coaxially,
It is rotated at a high speed of 8000 [rpm] or more.
そして、前記した外殻体２と駆動体１との間に
形成される間隙７は、駆動体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ができる範
囲で、できる限り小さい値に設定される。 The gap 7 formed between the outer shell 2 and the driving body 1 is set to a value as small as possible within a range that allows liquid to enter the gap 7 during high-speed rotation of the driving body 1. is set to
駆動体１の外周面を極めて円滑な面に研磨加工
したのは、この駆動体１が8000〔rpm〕から11000
〔rpm〕程度の極めて高速で回転されるため、水
との間の摩擦をできる限り少なくするためであ
る。 The reason why the outer peripheral surface of the drive body 1 is polished to an extremely smooth surface is that the drive body 1 can be rotated from 8000 [rpm] to 11000 [rpm].
This is to minimize friction with the water as it rotates at an extremely high speed of approximately [rpm].
この駆動体１の外周面が平滑でないと、高速回
転している駆動体１に激しい振動が発生してしま
い、所望の回転速度を得ることができなくなつて
しまう。 If the outer peripheral surface of the drive body 1 is not smooth, severe vibrations will occur in the drive body 1 rotating at high speed, making it impossible to obtain the desired rotation speed.
上記した構成にあつて、外殻体２と駆動体１と
の間に形成される間隙７内には、外殻体２の筒壁
３の窓孔６、および外殻体２の下端から液体が侵
入位置していると共に、外殻体２はその上端開口
部４が常時開放状態にあるので、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, liquid is allowed to flow through the window hole 6 of the cylindrical wall 3 of the outer shell 2 and from the lower end of the outer shell 2 in the gap 7 formed between the outer shell 2 and the driver 1. is in the intrusion position, and the upper end opening 4 of the outer shell 2 is always open, so that gas is supplied from the upper end opening 4.
この状態から駆動体１を8000〔rpm〕以上の高
速で回転させると、駆動体１外周面に接触する間
隙７内の液体および気体は、この駆動体１の回転
動作に追従して回転し、激しい渦流運動をし、こ
のため下方に引き込まれることになる。渦流運動
により液中に引き込まれた気体は、駆動体１の高
速回転動作と液体の激しい渦流運動とにより、こ
の液体と激しく攪拌され細分化されて極めて細い
気泡に成形される。 When the driver 1 is rotated from this state at a high speed of 8000 [rpm] or more, the liquid and gas in the gap 7 in contact with the outer peripheral surface of the driver 1 rotates following the rotational movement of the driver 1. It undergoes a violent vortex motion, which causes it to be drawn downwards. The gas drawn into the liquid by the vortex movement is violently agitated with the liquid by the high-speed rotational movement of the driver 1 and the intense vortex movement of the liquid, and is fragmented and formed into extremely thin bubbles.
このようにして、成形された極めて細い気泡
は、激しく渦流動作する液体と一緒に外殻体２の
下端開口部から勢い良く放出される。 In this way, the formed extremely thin bubbles are vigorously discharged from the lower end opening of the outer shell 2 together with the violently swirling liquid.
このように、間隙７内の気体および液体は、駆
動体１の高速回転動作により、外殻体２の下端開
口部から外部に放出されるため、この間隙７内の
液面位は低下することになるが、液面真下の外殻
体２の筒壁３箇所には窓孔６が開口されているの
で、間隙７内にはこの窓孔６を通して常に液体が
供給されることになり、このため間隙７内の液面
位は、この窓孔６よりも下に下がることがなく、
間隙７内で気体と攪拌混合される液体の高さ幅を
充分に確保維持することができる。 In this way, the gas and liquid in the gap 7 are discharged to the outside from the lower end opening of the outer shell 2 due to the high-speed rotating operation of the driver 1, so the liquid level in the gap 7 is lowered. However, since window holes 6 are opened at three locations in the cylindrical wall of the outer shell 2 directly below the liquid level, liquid is always supplied into the gap 7 through these window holes 6. Therefore, the liquid level in the gap 7 does not fall below this window hole 6.
A sufficient height and width of the liquid that is stirred and mixed with the gas within the gap 7 can be maintained.
また、このように間隙７内への液体の供給は、
筒壁３の上端部に開口形成された窓孔６から達成
されるので、外殻体２下端開口部から液体が間隙
７内に侵入することがなく、このため外殻体２下
端開口部から外部に放出される気泡は、その勢い
を阻害されることなく放出されることになる。 In addition, the supply of liquid into the gap 7 in this way is
Since this is achieved through the window hole 6 formed at the upper end of the cylinder wall 3, liquid will not enter the gap 7 from the lower end opening of the outer shell 2, and therefore the liquid will not enter the gap 7 from the lower end opening of the outer shell 2. The bubbles released to the outside will be released without their force being inhibited.
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.
図示実施例の場合、外殻体２は、その上端で水
面直上に不動に配置されたベース板１１に、その
上端開口部４が閉塞されない状態で、固着されて
いる。 In the case of the illustrated embodiment, the outer shell 2 is fixed at its upper end to a base plate 11 which is immovably disposed directly above the water surface, with its upper end opening 4 not being closed.
ベース板１１上には、このベース板１１との間
に一定の間隔を形成して取付け板１２が固定され
ており、この取付け板１２に駆動源であるモータ
１３が固定されている。 A mounting plate 12 is fixed on the base plate 11 with a predetermined distance therebetween, and a motor 13 serving as a driving source is fixed to the mounting plate 12.
このモータ１３を取付けた取付け板１２には、
外殻体２内に同軸心状に挿入組付けされた駆動体
１の上方に延出した上部を強固に保持する軸受体
１６が固定されていて、この駆動体１に振動する
ことなく安定した状態で高速回転することができ
るように保持している。 The mounting plate 12 to which this motor 13 is attached has
A bearing body 16 is fixed to firmly hold the upwardly extending upper part of the drive body 1 which is coaxially inserted and assembled into the outer shell body 2. It is held in such a way that it can rotate at high speed.
第１図図示実施例では、この振動を更に確実に
抑止するべく、駆動体１の下端に支持体１０が配
置されている。即ち、この支持体１０は、液体内
にあつて、例えば前記したベース板１１にロツド
等を介して連結固定されて不動となつており、駆
動体１の下端に延出された軸ピン９を軸支するの
であり、この支持体１０と上記した軸受体１６と
により駆動体１の両端を支持して、駆動体１を振
動することなく安定した状態で高速回転させるこ
とが可能となる。 In the embodiment shown in FIG. 1, a support 10 is disposed at the lower end of the drive body 1 in order to more reliably suppress this vibration. That is, the support body 10 is immovably connected to the base plate 11 described above via a rod or the like while in the liquid, and the shaft pin 9 extending from the lower end of the drive body 1 is connected to the base plate 11 through a rod or the like. This supporting body 10 and the above-mentioned bearing body 16 support both ends of the driving body 1, making it possible to rotate the driving body 1 at high speed in a stable state without vibration.
また、仮に駆動体１の軸支が上記したような手
段で達成されたとしても、駆動体１の高速回転に
よつて外殻体２が振動してしまうことも有り得
る。 Further, even if the driving body 1 is pivoted by the above-described means, the high-speed rotation of the driving body 1 may cause the outer shell 2 to vibrate.
よつて、前記した支持体１０の一部に、外殻体
２の下端をも固定することが考えられる。この場
合、外殻体２の下端開口部５は、外殻体２の下端
部周壁に開口されることになろう。 Therefore, it is conceivable to also fix the lower end of the outer shell 2 to a part of the support 10 described above. In this case, the lower end opening 5 of the outer shell 2 will be opened in the lower end peripheral wall of the outer shell 2.
第２図図示実施例は、外殻体２の下端を下方に
わずかに延長し、この外殻体２の下端に駆動体１
の下端を支持体１０を介して結合し、もつてこの
外殻体２により駆動体１の下端のぶれの発生を防
止するようにしている。この第２図図示実施例の
場合、支持体１０は外殻体２と駆動体１とを連結
すれば良いだけであるので、その設置が容易とな
る。なお、外殻体２は下方に延長された構成とな
つているので、その下端部分には気泡放出のため
の開口部が設けられることは云うまでもない。 In the embodiment shown in FIG. 2, the lower end of the outer shell 2 is slightly extended downward, and the driver 1 is attached to the lower end of the outer shell 2.
The lower ends of the driving body 1 are connected via a support 10, and the outer shell 2 serving as a lever prevents the lower end of the driving body 1 from wobbling. In the case of the embodiment shown in FIG. 2, the support body 10 only needs to connect the outer shell body 2 and the driving body 1, so that its installation is easy. Since the outer shell 2 is configured to extend downward, it goes without saying that an opening for releasing air bubbles is provided at its lower end.
外殻体２の窓孔６は、常に水が間隙７内に侵入
できるように、水中における筒壁３部分に開孔し
ているのであるが、水の侵入時にごみが間隙７内
に侵入しないように、窓孔６にネツト６ａの如き
を張ると良いであろう。 The window hole 6 of the outer shell 2 is opened in the portion of the cylinder wall 3 that is underwater so that water can always enter the gap 7, but dirt does not enter the gap 7 when water enters. It would be a good idea to stretch something like a net 6a over the window hole 6.
また、外殻体２の下端から放出される空気が混
合された水は、外殻体２の下端開口部５から渦流
に沿つて下方に放出されることになると、その放
出方向が規制されてしまうので、短時間のうちに
水中の広範囲に分散することが難しいものとなつ
てしまう。 Furthermore, when the water mixed with air released from the lower end of the outer shell 2 is released downward from the lower end opening 5 of the outer shell 2 along the vortex, the direction of its release is regulated. This makes it difficult to disperse over a wide area underwater in a short period of time.
そこで、図示実施例では、外殻体２の下端開口
部５から突出した駆動体１の下端部の周面に、放
散片８を設けている。この放散片８は、鍔状であ
つても複数の突片状であつても良く、駆動体１の
高速回転に伴なつて外殻体２の下端開口部５直下
の水中に、放射方向への水流を形成する。 Therefore, in the illustrated embodiment, a dissipating piece 8 is provided on the circumferential surface of the lower end of the driver 1 that protrudes from the lower end opening 5 of the outer shell 2. This dissipating piece 8 may be in the shape of a flange or a plurality of protruding pieces, and as the driving body 1 rotates at high speed, it radially moves into the water directly below the lower end opening 5 of the outer shell 2. form a stream of water.
従つて、外殻体２の下端開口部５から放出され
る空気が混合した水を、この水流に乗せて四方に
分散させることができる。 Therefore, water mixed with air discharged from the lower end opening 5 of the outer shell 2 can be carried by this water flow and dispersed in all directions.
なお、ベース板１１と取付け板１２との間の間
隙に位置した駆動体１部分には、プーリ１５が固
着されており、モータ１３のモータ軸に固着され
てベース板１１と取付け板１２との間に位置した
駆動プーリ１４との間に伝動ベルトが掛け渡され
ていて、モータ１３により駆動体１を回転駆動す
るようになつている。 A pulley 15 is fixed to a portion of the driver 1 located in the gap between the base plate 11 and the mounting plate 12, and is fixed to the motor shaft of the motor 13 to connect the base plate 11 and the mounting plate 12. A transmission belt is stretched between the drive pulley 14 located in between, and the drive body 1 is driven to rotate by the motor 13.
また、図中１７は取付金具であつて、前記した
軸受体１６の取付け強度をより高めるために設け
られたものであり、１８はモータ１３及び軸受体
１６のカバー体である。 Further, in the figure, reference numeral 17 is a mounting metal fitting, which is provided to further increase the mounting strength of the bearing body 16 described above, and 18 is a cover body for the motor 13 and the bearing body 16.
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の外殻体２に、径35mm、水面下の高さ
1070mmの駆動体１を組付けて構成された本発明装
置を設置し、駆動体１を8000〜11000〔rpm〕で回
転駆動して運転したところ、24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。池内の魚は、本発明装置の運転当初、装置
の周辺に集まるだけであつたが、次第に与えた餌
を食べるようになつた。 At one end of this fishpond, an outer shell 2 with an inner diameter of 61 mm and a height of 930 mm below the water surface, and an outer shell 2 with a diameter of 35 mm and a height below the water surface of
When the device of the present invention, which was constructed by assembling a 1070 mm driver 1, was installed and operated by rotating the driver 1 at 8,000 to 11,000 [rpm], after 24 hours, all the bluefins died and settled. The water in the pond became clear. At the beginning of the operation of the device of the present invention, the fish in the pond simply gathered around the device, but gradually they began to eat the food provided.
運転開始の一週間後、魚の皮膚病はほとんど完
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る鰻が、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 the start of operation, the skin disease in the fish was almost 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、外殻体
２下端開口部からかなりの勢いで放出されてい
る。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して位置させておいたとこ
ろ、３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、本発明装置により成形される気泡は、
２時間の間、水中に位置していることを確認でき
た。 According to measurements, the diameter of the bubbles formed by the device of the present invention and released into the water is approximately 10 -5 mm at maximum, and most of them are 10 -6 mm or less. It is being released with considerable force. Furthermore, when a pot filled with water was placed upside down on the water surface 20 m away from the apparatus of the present invention, all of the water in the pot was replaced with air after 3 hours. Furthermore, when a strong linear beam of light was irradiated into 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 operating, this white line was no longer visible after 2 hours. The bubbles that disappear and are formed by the device of the present invention are
It was confirmed that it remained underwater for two hours.
なお、本発明装置の使用により、魚類の皮膚病
がなぜ完治したのかは不明であるが、成形された
気泡中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 disease in fish was completely cured by using the device of the present invention, it is thought that the oxygen in the formed bubbles exerts some kind of effect.
以上の説明から明らかなように、本発明の液体
と気体との攪拌混合装置によれば、極めて小さな
径の気泡を水中に放出することができ、攪拌混合
部分に常時液体と気体が供給されているので、上
記放出を短時間の内に多量に達成することが可能
であり、上記気泡は径が極小であるために、それ
自身の浮力によつて短時間の内に水面に浮上して
しまうことはなく、不規則に遊動移動しながら水
中に長時間にわたつて残留して、空気中の酸素及
び窒素を効果的に水中に溶け込ませることがで
き、よつて、水の浄化や魚介類の養殖に極めて有
益である等、多くの優れた効果を有する。
As is clear from the above description, according to the stirring and mixing device for liquid and gas of the present invention, it is possible to release bubbles of extremely small diameter into water, and the liquid and gas are constantly supplied to the stirring and mixing part. Since the bubbles are small in diameter, they rise to the surface of the water in a short period of time due to their own buoyancy. It remains in the water for a long time while moving irregularly, effectively dissolving oxygen and nitrogen from the air into the water, and is therefore useful for water purification and seafood production. It has many excellent effects, including being extremely beneficial for aquaculture.
第１図は、本発明による液体と気体との攪拌混
合装置の一部縦断面正面図である。第２図は、駆
動体の下端と外殻体の下端とを結合した他の実施
例を示す要部正面図である。
符号の説明、１；駆動体、２；外殻体、３；筒
壁、４；上端開口部、６；窓孔、７；間隙。
FIG. 1 is a partially longitudinal cross-sectional front view of a stirring and mixing device for liquid and gas according to the present invention. FIG. 2 is a front view of main parts showing another embodiment in which the lower end of the driver and the lower end of the outer shell are connected. Explanation of symbols: 1; Drive body; 2; Outer shell; 3; Cylinder wall; 4; Upper end opening; 6; Window hole; 7; Gap.
Claims (1)
た上端開口部４を攪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殻
体２と、該外殻体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、前記外殻体２内
に該外殻体２の全長にわたり同軸心状に挿入組付
けされ、8000〔rpm〕以上の高速で回転駆動され
る直線円柱形状の駆動体１とから成り、前記外殻
体２と駆動体１との間の間隙７を、前記駆動体１
の高速回転時に前記液体が前記間隙７内に侵入位
置することができる範囲で、できる限り小さい値
に設定して成る液体と気体との攪拌混合装置。[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 opening 4 is located at the upper part of the cylinder wall 3 in the liquid. The outer shell 2 has a straight cylindrical shape with a window hole 6, and has a longer length than the outer shell 2 and an extremely smooth outer circumferential surface. and a straight cylindrical drive body 1 which is coaxially inserted and assembled over the entire length of the outer shell body 2 and driven to rotate at a high speed of 8000 [rpm] or more, and the gap between the outer shell body 2 and the drive body 1 is 7, the driving body 1
An apparatus for stirring and mixing liquid and gas, which is set to a value as small as possible within a range that allows the liquid to enter the gap 7 during high-speed rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62057794A JPS63224722A (en) | 1987-03-12 | 1987-03-12 | Agitating and mixing device for liquid and gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62057794A JPS63224722A (en) | 1987-03-12 | 1987-03-12 | Agitating and mixing device for liquid and gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63224722A JPS63224722A (en) | 1988-09-19 |
| JPH0379055B2 true JPH0379055B2 (en) | 1991-12-17 |
Family
ID=13065794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62057794A Granted JPS63224722A (en) | 1987-03-12 | 1987-03-12 | Agitating and mixing device for liquid and gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63224722A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6136448A (en) * | 1984-07-30 | 1986-02-21 | 松井板金資材株式会社 | Shingling structure of metal roof panel |
-
1987
- 1987-03-12 JP JP62057794A patent/JPS63224722A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6136448A (en) * | 1984-07-30 | 1986-02-21 | 松井板金資材株式会社 | Shingling structure of metal roof panel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63224722A (en) | 1988-09-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4240990A (en) | Aeration propeller and apparatus | |
| US4193951A (en) | Water aerating device | |
| US4774031A (en) | Aerator | |
| JPH0691146A (en) | Agitating mixer for liquid and gas | |
| JPH0379055B2 (en) | ||
| JPH0379056B2 (en) | ||
| JP2002316185A (en) | Sewage treatment tank | |
| JPH0334974B2 (en) | ||
| JPH0379057B2 (en) | ||
| JP3637294B2 (en) | Aerator | |
| JPS6136448B2 (en) | ||
| EP0136394A2 (en) | Method and apparatus for solution of gas in liquid | |
| US3739986A (en) | Axial flow liquid aerator | |
| KR200331005Y1 (en) | Air supply apparatus under the water | |
| JP4082593B2 (en) | Operation method of aerator | |
| JP2547104B2 (en) | Underwater aeration system for ponds | |
| JPS63224725A (en) | Agitating and mixing device for liquid and gas | |
| SU1540755A1 (en) | Aerator | |
| JP4686414B2 (en) | Stirring impeller, underwater stirring device and underwater stirring aeration device | |
| KR102666608B1 (en) | A device that accelerates the reaction of substances to be stirred | |
| JP3377521B2 (en) | Water purification and activation equipment | |
| JP3444865B2 (en) | Aerator | |
| JP3414651B2 (en) | Underwater mechanical stirring and aeration equipment | |
| JPH0116510Y2 (en) | ||
| JPH09308894A (en) | Aerating apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |