JPS63224721A - Self-priming fine bubble generator - Google Patents
Self-priming fine bubble generatorInfo
- Publication number
- JPS63224721A JPS63224721A JP62057648A JP5764887A JPS63224721A JP S63224721 A JPS63224721 A JP S63224721A JP 62057648 A JP62057648 A JP 62057648A JP 5764887 A JP5764887 A JP 5764887A JP S63224721 A JPS63224721 A JP S63224721A
- Authority
- JP
- Japan
- Prior art keywords
- blades
- cylindrical body
- peripheral surface
- gas
- revolving 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.)
- Pending
Links
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 239000010409 thin film Substances 0.000 abstract description 6
- 238000010008 shearing Methods 0.000 abstract description 5
- 239000012528 membrane Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005406 washing Methods 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
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は浴槽用気泡発生器、洗濯機、養魚池、無機有機
の反応器、ガス吸収器等に利用できる自吸式微細気泡発
生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 self-priming fine bubble generator that can be used in bubble generators for bathtubs, washing machines, fish ponds, inorganic and organic reactors, gas absorbers, etc. It is something.
（従来の技術）
従来の自吸式微細気泡発生装置の１例を第３図及び第４
図について説明すると、先ず第３図では吸気管１０の下
部にポンプのインペラ１１を設け、同インペラ１１を高
速回転せしめることにより、吸気管１８より気体を吸引
し、同気体が液流１２と共にインペラ１１中を通過する
間に分割されて気泡１３にする。また第４図の如くポン
プ１４のインペラ１５による水流１６をノズル１７より
噴出させる時の負圧で、吸気管１８から中空軸１９を経
て気体を吸引することにより気泡２０化する。(Prior art) An example of a conventional self-priming microbubble generator is shown in Figures 3 and 4.
To explain the diagrams, first, in FIG. 3, a pump impeller 11 is provided at the bottom of the intake pipe 10, and by rotating the impeller 11 at high speed, gas is sucked through the intake pipe 18, and the gas is sent to the impeller along with the liquid flow 12. While passing through 11, it is divided into bubbles 13. Further, as shown in FIG. 4, when the water flow 16 is ejected from the nozzle 17 by the impeller 15 of the pump 14, the negative pressure causes gas to be sucked from the intake pipe 18 through the hollow shaft 19, thereby forming bubbles 20.
（発明が解決しようとする問題点）
前記従来の自吸式微細気泡発生装置では、吸気管からの
気体を、インペラの高速回転による液流により吸引して
液中に気泡を発生させるだけであったので、気泡径の微
細化度と均一性の点で問題があった。(Problems to be Solved by the Invention) The conventional self-priming microbubble generator described above only generates bubbles in the liquid by suctioning the gas from the intake pipe with the liquid flow generated by the high-speed rotation of the impeller. Therefore, there was a problem in terms of the degree of refinement and uniformity of the bubble diameter.
本発明は前記従来の問題点を解決するために提案された
ものである。The present invention has been proposed to solve the above-mentioned conventional problems.
（問題点を解決するための手段）
このため本発明は、上端有蓋、下端開放の回転円筒体を
中空駆動軸の下端に回転可能に取付けると共に、同中空
駆動軸の下端を同円筒体内に開口し、かつ同円筒体の内
周面ムこ複数の羽根を放射状に設け、前記回転円筒体の
上部外周面又は同円筒体より少し上方部の中空駆動軸外
周面に、回転軸に対し傾斜させて複数の羽根を放射状に
設け、前記中空駆動軸の上端は気体中に開口し、前記回
転円筒体は液体中に配設してなるもので、これを問題点
解決のための手段とするものである。(Means for Solving the Problems) Therefore, the present invention provides a rotating cylindrical body with a closed top end and an open bottom end, which is rotatably attached to the lower end of a hollow drive shaft, and the lower end of the hollow drive shaft is opened in the cylindrical body. and a plurality of blades are provided radially on the inner circumferential surface of the cylindrical body, and on the upper outer circumferential surface of the rotating cylindrical body or on the outer circumferential surface of the hollow drive shaft slightly above the cylindrical body, the blades are inclined with respect to the rotating shaft. A plurality of blades are provided in a radial manner, the upper end of the hollow drive shaft is opened in the gas, and the rotating cylindrical body is disposed in the liquid, and this is used as a means to solve the problem. It is.
（作用）
回転円筒体内部の羽根により気体を吸引すると、円筒側
面に気体の薄い膜が形成される。この気体膜は液との剪
断力により微細化し、均一な気泡となる。気泡は円筒側
面に設けられた回転軸に対して斜めになった羽根により
発生する水流に乗り、周囲外方に拡げられる。(Operation) When gas is sucked by the blades inside the rotating cylinder, a thin film of gas is formed on the side surface of the cylinder. This gas film becomes finer due to the shearing force with the liquid and becomes uniform bubbles. The bubbles ride the water flow generated by the blades provided on the side of the cylinder and are oblique to the rotation axis, and are spread outward.
（実施例）
以下本発明を図面の実施例について説明すると、第１図
及び第２図は本発明の実施例を示す。(Embodiments) The present invention will be described below with reference to embodiments of the drawings. FIGS. 1 and 2 show embodiments of the present invention.
先ず第１図の第１実施例について説明すると、■は上端
有蓋、下端開放の回転円筒体で、中空駆動軸３の下端に
連結され、駆動モータ７によりプーリ６を介して回転さ
れる中空駆動軸３を経て、液体４中で回転駆動されるよ
うになっている。２ａは回転円筒体１の内周面から中央
に向は放射状に突設された複数の羽根（第１図では４枚
）で、回転円筒体１が回転すると、同羽根２ａも回転し
、吸入口８より気体を、その吸引作用により中空駆動軸
３を経て吸引する。この吸引された気体は羽根２ａの間
５を通り、回転円筒体１の下部より溢流して同円筒体１
の外周面１ａに薄い気体膜を形成する。２ｈは回転円筒
体１の上部外周面に、回転軸に対し傾斜して放射状に設
けられた羽根で、回転円筒体が回転すると、周囲の液体
４に下向きの流れを発生させるようになっている。なお
、中空駆動軸３が逆方向に回転ずれば、羽根２ｂは液体
４に上向きの流れを発生させる。First, the first embodiment shown in FIG. 1 will be described. 3 is a rotating cylindrical body with a closed top end and an open bottom end, which is connected to the bottom end of a hollow drive shaft 3 and rotated by a drive motor 7 via a pulley 6. It is designed to be rotationally driven in a liquid 4 via a shaft 3. Reference numerals 2a denote a plurality of blades (four blades in Fig. 1) that project radially from the inner circumferential surface of the rotating cylinder 1 toward the center; when the rotating cylinder 1 rotates, the blades 2a also rotate, and the suction Gas is sucked from the opening 8 through the hollow drive shaft 3 by its suction action. This sucked gas passes between the blades 2a 5 and overflows from the lower part of the rotating cylinder 1.
A thin gas film is formed on the outer peripheral surface 1a of. 2h is a vane provided radially on the upper outer circumferential surface of the rotating cylindrical body 1 at an angle with respect to the rotation axis, so that when the rotating cylindrical body rotates, a downward flow is generated in the surrounding liquid 4. . Note that if the hollow drive shaft 3 rotates in the opposite direction, the vanes 2b cause the liquid 4 to flow upward.
次に作用を説明する。駆動モータ７が駆動されると、プ
ーリ６及び中空駆動軸３を介して回転円筒体１が回転す
る。従って羽根２ａも回転するため、吸入口８より中空
駆動軸３を経て気体が吸引され、この吸引された気体は
羽根２ａの間５を経て回転円筒体１の下部より溢流し、
この気体は回転円筒体１の外周面１ａに薄い膜を形成す
る。Next, the effect will be explained. When the drive motor 7 is driven, the rotating cylindrical body 1 rotates via the pulley 6 and the hollow drive shaft 3. Therefore, since the blade 2a also rotates, gas is suctioned from the suction port 8 through the hollow drive shaft 3, and this suctioned gas passes through the gap 5 between the blades 2a and overflows from the lower part of the rotating cylindrical body 1.
This gas forms a thin film on the outer peripheral surface 1a of the rotating cylindrical body 1.
回転円筒体１が回転すると、その周囲の液体４も回転す
るが、同液体と回転円筒体ｌとには回転の速度差がある
ため、前記外周面１ａに形成された薄い気体の膜は、そ
の相対速度差による剪断力により表面がひきちぎられて
微細な均一な気泡を発生ずる。一方羽根２ｂの回転によ
り下向きの液体流が発生するが、この羽、Ｉ’ｔｌｔ２
ｂは回転軸に対し傾斜状に設けられているため、この下
向きの液体流は前記の如く発生した気泡を流れに乗せて
周囲外方に拡げる。When the rotating cylinder 1 rotates, the liquid 4 around it also rotates, but since there is a difference in rotational speed between the liquid and the rotating cylinder 1, the thin gas film formed on the outer peripheral surface 1a The surface is torn apart by the shearing force caused by the relative velocity difference, generating fine, uniform bubbles. On the other hand, a downward liquid flow is generated by the rotation of the blade 2b, but this blade, I'tlt2
Since b is provided at an angle with respect to the rotation axis, this downward liquid flow carries the generated bubbles as described above and spreads them outward.
第２図は第２実施例を示し、第１図では羽根２ｂが回転
円筒体１の上部外周面に設けられていたが、第２図では
羽根２ｂと同じ作用を有する羽根２ｃを、回転円筒体１
より少し離れた上方の中空駆動軸３の外周面に取付けた
ものであるが、第１図の実施例と作用効果において差異
はない。FIG. 2 shows a second embodiment. In FIG. 1, the blades 2b were provided on the upper outer peripheral surface of the rotating cylindrical body 1, but in FIG. body 1
Although it is attached to the outer peripheral surface of the upper hollow drive shaft 3 a little further away, there is no difference in function and effect from the embodiment shown in FIG.
（発明の効果）
以上詳細に説明した如く本発明は、内周面に放射状に羽
根を設けた回転円筒体を中空駆動軸の下端に設けたので
、同円筒体を液体中で回転させると、前記内周面の羽根
の吸引作用により中空駆動軸を経て気体が回転円筒体内
に吸引され、この吸引された気体は同円筒体の下部より
溢流して円筒体の外周面に薄い膜を形成する。(Effects of the Invention) As described above in detail, the present invention includes a rotating cylindrical body with radial vanes on its inner peripheral surface provided at the lower end of the hollow drive shaft, so that when the cylindrical body is rotated in a liquid, Gas is sucked into the rotating cylinder through the hollow drive shaft by the suction action of the vanes on the inner peripheral surface, and this sucked gas overflows from the lower part of the cylinder to form a thin film on the outer peripheral surface of the cylinder. .
この薄い膜は周囲の液体との相対速度差により剪断力を
受けて気体表面がひきちぎられて微細で均一な気泡とな
る。そしてこの気泡は、上方部の放射状に回転軸に対し
傾斜して設けられた羽根により周囲外方に拡げられる。This thin film is subjected to shearing force due to the relative velocity difference with the surrounding liquid, and the gas surface is torn off to form fine, uniform bubbles. The air bubbles are expanded outwardly by the blades provided in the upper part radially and inclined with respect to the rotation axis.
【図面の簡単な説明】
第１図及び第２図は夫々本発明の実施例を示す自吸式微
細気泡発生装置の縦断面図、第３図及び第４図は夫々従
来の自吸式微細気泡発生装置の縦断面図である。
図の主要部分の説明
１ 回転円筒体 ２ａ−羽根
２ｂ、 ２ｃｍ−羽根 ３−中空駆動軸４−液
体 ５−羽根の間
６−プーリ ７−駆動モータ８−吸入口
第１図[BRIEF DESCRIPTION OF THE DRAWINGS] FIGS. 1 and 2 are longitudinal sectional views of a self-priming microbubble generator showing an embodiment of the present invention, and FIGS. 3 and 4 are longitudinal cross-sectional views of a conventional self-priming microbubble generator, respectively. FIG. 3 is a longitudinal cross-sectional view of the bubble generator. Explanation of main parts of the figure 1 Rotating cylindrical body 2a-blade 2b, 2cm-blade 3-hollow drive shaft 4-liquid 5-between the blades 6-pulley 7-drive motor 8-intake port Fig. 1
Claims (1)
回転可能に取付けると共に、同中空駆動軸の下端を同円
筒体内に開口し、かつ同円筒体の内周面に複数の羽根を
放射状に設け、前記回転円筒体の上部外周面又は同円筒
体より少し上方部の中空駆動軸外周面に、回転軸に対し
傾斜させて複数の羽根を放射状に設け、前記中空駆動軸
の上端は気体中に開口し、前記回転円筒体は液体中に配
設してなることを特徴とする自吸式微細気泡発生装置。A rotating cylindrical body with a covered top end and an open bottom end is rotatably attached to the lower end of a hollow drive shaft, the lower end of the hollow drive shaft is opened in the cylindrical body, and a plurality of blades are arranged radially on the inner peripheral surface of the cylindrical body. A plurality of blades are provided radially on the upper outer circumferential surface of the rotating cylindrical body or on the outer circumferential surface of the hollow drive shaft slightly above the rotating cylindrical body, and are inclined with respect to the rotating shaft, and the upper end of the hollow drive shaft is provided with a gas 1. A self-priming microbubble generating device, characterized in that the rotary cylindrical body is opened in the liquid and the rotating cylindrical body is disposed in the liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62057648A JPS63224721A (en) | 1987-03-12 | 1987-03-12 | Self-priming fine bubble generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62057648A JPS63224721A (en) | 1987-03-12 | 1987-03-12 | Self-priming fine bubble generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63224721A true JPS63224721A (en) | 1988-09-19 |
Family
ID=13061717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62057648A Pending JPS63224721A (en) | 1987-03-12 | 1987-03-12 | Self-priming fine bubble generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63224721A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002346547A (en) * | 2001-05-25 | 2002-12-03 | Tekku Kogyo Kk | Apparatus for generating fine bubble |
| JP2016137454A (en) * | 2015-01-28 | 2016-08-04 | 日新技研株式会社 | Gas-liquid mixer and manufacturing method of fine bubble mixed liquid |
| JPWO2017204205A1 (en) * | 2016-05-24 | 2019-03-28 | 日新技研株式会社 | Apparatus and method for producing fine bubble mixture |
| CN114632444A (en) * | 2022-02-14 | 2022-06-17 | 江南大学 | Stirrer with self-absorption and gas-liquid dispersion functions |
-
1987
- 1987-03-12 JP JP62057648A patent/JPS63224721A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002346547A (en) * | 2001-05-25 | 2002-12-03 | Tekku Kogyo Kk | Apparatus for generating fine bubble |
| JP2016137454A (en) * | 2015-01-28 | 2016-08-04 | 日新技研株式会社 | Gas-liquid mixer and manufacturing method of fine bubble mixed liquid |
| JPWO2017204205A1 (en) * | 2016-05-24 | 2019-03-28 | 日新技研株式会社 | Apparatus and method for producing fine bubble mixture |
| CN114632444A (en) * | 2022-02-14 | 2022-06-17 | 江南大学 | Stirrer with self-absorption and gas-liquid dispersion functions |
| CN114632444B (en) * | 2022-02-14 | 2023-02-21 | 江南大学 | Stirrer with self-absorption and gas-liquid dispersion functions |
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