JPH06285344A - Method and device for gas-liquid dissolution and mixing - Google Patents
Method and device for gas-liquid dissolution and mixingInfo
- Publication number
- JPH06285344A JPH06285344A JP4148769A JP14876992A JPH06285344A JP H06285344 A JPH06285344 A JP H06285344A JP 4148769 A JP4148769 A JP 4148769A JP 14876992 A JP14876992 A JP 14876992A JP H06285344 A JPH06285344 A JP H06285344A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- liquid
- mixing
- nozzle
- dissolving
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims description 16
- 238000004090 dissolution Methods 0.000 title description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 230000003068 static effect Effects 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 6
- 229920006395 saturated elastomer Polymers 0.000 description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 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
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
- B01F25/452—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces
- B01F25/4521—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through orifices in elements, e.g. flat plates or cylinders, which obstruct the whole diameter of the tube
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、液体中に気泡を混合
分散させたり、気体を効率よく液体に溶解させる気液溶
解混合方法及び気液溶解混合装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas-liquid dissolving / mixing method and a gas-liquid dissolving / mixing apparatus for mixing and dispersing bubbles in a liquid or efficiently dissolving a gas in the liquid.
【０００２】[0002]
【従来の技術】従来、液体中に気体を大量に分散及び溶
解させる装置としては、いわゆるエゼクター式気泡発生
装置がある。これは、ノズルから射出した液体噴流を、
一旦、混合される気体中を通過させて、上記ノズルと同
軸に設けられ上記噴流とほぼ等しい直径の絞りから水槽
中に気体混合噴流を噴射し、液体中に微小気泡を混合さ
せていた。また、同様の方法により微小気泡を分散させ
た液体を、気泡塔下部に注入し、微小気泡が液体中を上
昇する間に液体中に大量に気体を溶解させ、所望の気体
が溶解した液体を製造していた。一方、気体と液体を加
圧ポンプ中に送り込み加圧ポンプ内で液体を加圧し、液
体中の気泡から気体を液体中に溶解させる様にしたもの
もある。2. Description of the Related Art Conventionally, as a device for dispersing and dissolving a large amount of gas in a liquid, there is a so-called ejector type bubble generating device. This is the liquid jet ejected from the nozzle,
Once passing through the gas to be mixed, the gas mixing jet flow is jetted into the water tank from the throttle provided coaxially with the nozzle and having a diameter substantially equal to the jet flow to mix micro bubbles in the liquid. In addition, a liquid in which microbubbles are dispersed by the same method is injected into the lower part of the bubble column, a large amount of gas is dissolved in the liquid while the microbubbles rise in the liquid, and the liquid in which the desired gas is dissolved is It was manufactured. On the other hand, there is also one in which a gas and a liquid are sent into a pressure pump to pressurize the liquid in the pressure pump so that the gas is dissolved in the liquid from bubbles in the liquid.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の技術のエゼ
クター式気泡発生装置の場合、液体噴射ノズルの中心と
絞りの中心とを一致させなければならず、装置の構造が
複雑で製造が難しく、気体の混合割合や溶解量も十分な
ものではなかった。また、気泡塔を用いた気体溶解装置
は、気体が十分に溶解した液体を得るまでの立ち上がり
時間が長く、製造効率も良くないものであった。さら
に、上記従来の技術の加圧ポンプを用いるものの場合、
加圧ポンプ内に気体と液体を一緒に送り込むため、ポン
プ内でキャビテーションが発生しやすく、ポンプの材質
や構造が制限されるという問題があった。In the case of the ejector-type bubble generating device of the above-mentioned prior art, the center of the liquid jet nozzle and the center of the diaphragm must be coincident with each other, the structure of the device is complicated and the manufacture is difficult, The gas mixing ratio and dissolution amount were not sufficient. Further, the gas dissolving device using the bubble column has a long rise time until a liquid in which the gas is sufficiently dissolved is obtained, and the manufacturing efficiency is not good. Furthermore, in the case of using the above-mentioned conventional pressure pump,
Since gas and liquid are sent into the pressurizing pump together, there is a problem that cavitation is likely to occur in the pump and the material and structure of the pump are limited.
【０００４】この発明は、上記従来の技術の問題点に鑑
みて成されたもので、簡単な構造で、効率よく微小気泡
を得ることができ、大量に気体を液体中に混合及び溶解
させることができる気液溶解混合方法及び気液溶解混合
装置を提供することを目的とする。The present invention has been made in view of the above-mentioned problems of the prior art. It is possible to efficiently obtain fine bubbles with a simple structure and to mix and dissolve a large amount of gas in a liquid. An object of the present invention is to provide a gas-liquid dissolving and mixing method and a gas-liquid dissolving and mixing apparatus that can perform the above.
【０００５】[0005]
【課題を解決するための手段】この発明は、液体流路の
一部をベンチュリ管やオリフィス等で絞り、この絞り部
の下流側で徐々に管路を広げるとともに、上記絞り部の
わずかに下流側で気体を流入させ、上記広げられた部分
の下流側で気体と液体を混合し、出口に設けられたノズ
ル部から気液混合流を噴出させる気液溶解混合方法であ
る。According to the present invention, a part of a liquid flow path is throttled by a Venturi tube, an orifice or the like, the pipe path is gradually widened on the downstream side of the throttle part, and slightly downstream of the throttle part. Is a gas-liquid dissolving and mixing method in which a gas is caused to flow in, a gas and a liquid are mixed at a downstream side of the expanded portion, and a gas-liquid mixed flow is ejected from a nozzle portion provided at an outlet.
【０００６】またこの発明は、液体流路に設けられたベ
ンチュリ管やオリフィス等の絞り部と、この絞り部につ
づいて管路を徐々に広げた広がり部と、上記絞り部のわ
ずかに下流側の広がり部に設けられた気体流入口と、上
記広がり部の下流に設けられ流路中の液体と上記気体流
入口から流入した気体とを混合する混合部と、この混合
部の出口に設けられたノズル部とを備えた気液溶解混合
装置である。Further, according to the present invention, a narrowed portion such as a Venturi tube or an orifice provided in the liquid flow path, a widened portion formed by gradually widening the pipe path following the narrowed portion, and slightly downstream of the narrowed portion. A gas inlet provided in the spread portion, a mixing portion provided downstream of the spread portion for mixing the liquid in the flow channel and the gas flowing in from the gas inlet, and provided in the outlet of the mixing portion. A gas-liquid dissolving and mixing device including a nozzle section.
【０００７】[0007]
【作用】この発明の気液溶解混合方法及び気液溶解混合
装置は、ベンチュリ管ののど部等の絞り部のわずか下流
側の負圧部から気体を流れの中に流入させ、流れがおそ
くなり静圧が増大した混合部で流入した気体を加圧溶解
させ、さらに、出口のノズル部によって上記気液混合流
を加速させ、この時の流れの乱れにより、混合した気泡
をせん断し細分化するとともに、液体中から溶解した気
体を微小気泡として析出させることにより気泡を発生さ
せる様にしたものである。The gas-liquid dissolving and mixing method and the gas-liquid dissolving and mixing device of the present invention allow gas to flow into a flow from a negative pressure portion slightly downstream of a throttle portion such as a throat portion of a Venturi tube, and the flow becomes slow. The gas flowing in the mixing section with increased static pressure is pressurized and dissolved, and further, the gas-liquid mixed flow is accelerated by the nozzle section at the outlet, and due to the turbulence of the flow at this time, the mixed bubbles are sheared and fragmented. At the same time, bubbles are generated by precipitating dissolved gas from the liquid as fine bubbles.
【０００８】[0008]
【実施例】以下この発明の気液溶解混合方法及び気液溶
解混合装置の実施例について図面に基づいて説明する。
図１、図２はこの発明の第一実施例を示すもので、図１
に示すように、液体中に気体を混合する混合器１０に
は、絞り部であるのど部１２が中央部に設けられたベン
チュリ管１４が形成されている。このベンチュリ管１４
の下流側の広がり部１６には、のど部１２のわずか下流
側に、気体を流路中に混合させるための気体流入口１８
が形成されている。Embodiments of the gas-liquid dissolving and mixing method and the gas-liquid dissolving and mixing apparatus of the present invention will be described below with reference to the drawings.
1 and 2 show a first embodiment of the present invention.
As shown in (1), the mixer 10 for mixing gas into a liquid is provided with a venturi tube 14 having a throat portion 12 which is a throttle portion provided in the central portion. This Venturi tube 14
In the widened portion 16 on the downstream side of the throat portion, a gas inlet port 18 for mixing gas in the flow path is provided on the slightly downstream side of the throat portion 12.
Are formed.
【０００９】広がり部１６の下流側には、気体流入口１
８から流入した気体と流路中の液体とを混合する混合部
２０が形成されている。混合部２０は、外径を加圧の程
度に合わせて任意に設定し得るものであり、ここでは広
がり部１６の最大径から延長した形状に形成され、この
混合部２０の先端に、複数のノズル口２２が形成された
ノズル部２４が取り付けられている。On the downstream side of the expanded portion 16, the gas inlet 1
A mixing portion 20 for mixing the gas flowing in from 8 and the liquid in the flow path is formed. The outer diameter of the mixing portion 20 can be arbitrarily set in accordance with the degree of pressurization, and here, the mixing portion 20 is formed in a shape extending from the maximum diameter of the widening portion 16, and a plurality of tips are formed at the tip of the mixing portion 20. A nozzle portion 24 having a nozzle opening 22 is attached.
【００１０】この実施例の気液溶解混合装置の作用につ
いて以下に説明する。先ず、混合器１０の入口部２６に
流入した液体は、ベンチュリ管１４ののど部１２で加速
されて、一旦静圧が低下し、広がり部１６を経て流速が
遅くなり再び静圧が増大する。この時、気体流入口１８
は、のど部１２のわずかに下流側であり、この部分の静
圧は相対的に負圧になっているため、気体が流路中に流
入する。この気体流入口１８をのど部１２に配置しない
のは、のど部１２が最も静圧が低くなる部分ではある
が、のど部１２に気体流入口１８を設けると、気体の吸
込みが良くなく、流路が広がり始めた個所の方が気体が
流入しやすいためである。The operation of the gas-liquid dissolving and mixing apparatus of this embodiment will be described below. First, the liquid that has flowed into the inlet portion 26 of the mixer 10 is accelerated in the throat portion 12 of the Venturi tube 14, and the static pressure is once reduced, and then the flow velocity is slowed through the widening portion 16 and the static pressure is increased again. At this time, the gas inlet 18
Is slightly downstream of the throat portion 12, and the static pressure in this portion is relatively negative, so that gas flows into the flow path. The gas inlet port 18 is not arranged in the throat portion 12 where the throat portion 12 has the lowest static pressure. However, when the gas inlet port 18 is provided in the throat portion 12, the gas suction is not good and the throat portion 12 does not flow. This is because gas can flow in more easily where the passage begins to expand.
【００１１】気体流入口１８から流入した気体は、気泡
となって流路中の液体とともに混合部２０に流れ、気泡
となった気体は、混合部２０の静圧がのど部１２より高
いので液体中に溶解していく。そして、混合部２０から
ノズル口２２を経て気泡とともに液体が噴射される。ノ
ズル口２２を通過する際には、液体は再び加速されるの
で、その静圧は低くなり、液体中に溶解していた気体が
微小気泡として析出する。さらに、溶解しきらない気泡
も、ノズル口２２で加速される際に流れの乱れ等によ
り、細分化され、小径な気泡となって液体とともに噴射
される。The gas flowing from the gas inflow port 18 flows as bubbles into the mixing section 20 together with the liquid in the flow path, and the bubbles become liquid because the static pressure of the mixing section 20 is higher than that of the throat section 12. Dissolves in. Then, the liquid is ejected from the mixing unit 20 through the nozzle port 22 together with the bubbles. When passing through the nozzle port 22, the liquid is accelerated again, so that the static pressure becomes low and the gas dissolved in the liquid is deposited as fine bubbles. Further, the bubbles that are not completely dissolved are also subdivided due to turbulence of the flow when accelerated at the nozzle port 22 and become bubbles with a small diameter and are ejected together with the liquid.
【００１２】この実施例の気液溶解混合装置の気体流入
口１８と、ノズル口２２の面積の総和との関係は、以下
の式を満たすものであれば良い。 ＰA＜ＰG …（１） ＰGは気体流入口１８から流入する気体の圧力。ＰAは流
体力学上の連続の式及びベルヌーイの定理により、以下
の式により与えられる気体流入口１８での静圧である。The relationship between the gas inflow port 18 and the total area of the nozzle ports 22 of the gas-liquid dissolving and mixing apparatus of this embodiment may be any as long as the following expression is satisfied. P A <P G (1) P G is the pressure of the gas flowing in from the gas inlet port 18. P A is the static pressure at the gas inlet port 18 given by the following equation according to the equation of continuity in hydrodynamics and Bernoulli's theorem.
【００１３】 ＰA＝（１−Ｓ2 B／Ｓ2 A）Ｐ1＋（δＰ＋ＰB）Ｓ2 B／Ｓ2 A …（２） ここで、ＳAは気体流入口１８の断面積、ＳBはノズル口
２２の断面積の総和、Ｐ1は気体流入口１８の総圧、δ
Ｐは気体流入口１８からノズル口２２までの圧力損失、
ＰBはノズル口２２の出口の静圧である。P A = (1−S 2 B / S 2 A ) P 1 + (δP + P B ) S 2 B / S 2 A (2) where S A is the cross-sectional area of the gas inlet 18, S B is the total cross-sectional area of the nozzle port 22, P 1 is the total pressure of the gas inlet port 18, δ
P is the pressure loss from the gas inflow port 18 to the nozzle port 22,
P B is the static pressure at the outlet of the nozzle port 22.
【００１４】従って、上記式（１）、（２）を満たす様
に気体流入口１８及びノズル口２２の大きさを設定する
ことにより、液体中に気体を効率的に混合し溶解させる
最適な条件が得られるものである。また、混合部２０
は、加圧下での液体に気体が溶解し飽和するまでの気液
の接触時間が得られるものであればより好ましく、気液
の接触時間は混合部の体積に依存するので、混合部の長
さがある程度長い方が気体が飽和点にまで溶解する。ま
た、飽和状態まで溶解させる必要がない場合は、この混
合部２０は短いものであっても良い。Therefore, by setting the sizes of the gas inflow port 18 and the nozzle port 22 so as to satisfy the above equations (1) and (2), optimum conditions for efficiently mixing and dissolving the gas in the liquid are obtained. Is obtained. Also, the mixing unit 20
Is more preferable as long as the gas-liquid contact time until the gas is dissolved and saturated in the liquid under pressure can be obtained. Since the gas-liquid contact time depends on the volume of the mixing part, the length of the mixing part is long. The longer the gas is, the more the gas dissolves to the saturation point. Further, when it is not necessary to dissolve the mixture to the saturated state, the mixing section 20 may be short.
【００１５】この実施例の気液溶解混合装置を用いた、
気体溶解水製造装置について図２に基づいて説明する。
この実施例の気体溶解水製造装置は、水槽３０と、液体
を圧送するポンプ３２が管路３４で接続されて設けら
れ、ポンプ３２の出力側に管路３６を介して混合器１０
が取り付けられている。混合器１０は、気体が溶解した
液体を溜める水槽３８の底部に、ノズル部２４が開口し
て取り付けられ、その気体流入口１８に、管路４０およ
び流量調整弁４２を介して気体タンク４４が接続されて
いる。また、管路３６には、リリーフ弁４６を介して水
槽３０に接続された管路４８が接続されている。Using the gas-liquid dissolution mixing apparatus of this embodiment,
The gas-dissolved water production apparatus will be described with reference to FIG.
The apparatus for producing gas-dissolved water according to this embodiment is provided with a water tank 30 and a pump 32 for pumping a liquid connected by a pipe line 34, and the mixer 10 is connected to the output side of the pump 32 through a pipe line 36.
Is attached. The mixer 10 is attached to the bottom of a water tank 38 for accumulating a liquid in which a gas is dissolved, with a nozzle portion 24 opened, and a gas tank 44 at a gas inlet 18 thereof via a pipe 40 and a flow rate adjusting valve 42. It is connected. Further, a pipeline 48 connected to the water tank 30 via a relief valve 46 is connected to the pipeline 36.
【００１６】この気体溶解水製造装置は、水槽３０の液
体をポンプ３２で混合器１０に圧送し、上述したよう
に、混合器１０中で、気体タンク４４から送られた気体
が混合器１０中の液体に混合され、大量に液体中に気体
が溶解し、ノズル２２から気泡とともに噴射される。こ
こで、リリーフ弁４６は、圧送される液体の圧力を一定
にするためのものであり、流量調整弁４２は、液体中に
効率よく微小気泡が形成されるように気体流量を調整す
るためのものである。実験的には、気体流量が液体流量
の１０〜３０％の場合に、効率よく大量の小径気泡が液
体中に得られた。混合器１０から噴射された気泡は、そ
の噴流により水槽３８内の液体中に分散させられ、微小
気泡なので、長時間液体中に浮遊している。尚、この気
体溶解水製造装置において、液体中に常時気泡を分散さ
せておきたい場合等には、水槽３０と水槽３８を同じに
した形に管路３４，３６等を接続すれば良い。In this apparatus for producing gas-dissolved water, the liquid in the water tank 30 is pumped to the mixer 10 by the pump 32, and the gas sent from the gas tank 44 in the mixer 10 is in the mixer 10 as described above. Is mixed with the liquid, and a large amount of gas is dissolved in the liquid, and the gas is ejected from the nozzle 22 together with the bubbles. Here, the relief valve 46 is for making the pressure of the liquid to be pumped constant, and the flow rate adjusting valve 42 is for adjusting the gas flow rate so that minute bubbles are efficiently formed in the liquid. It is a thing. Experimentally, when the gas flow rate was 10 to 30% of the liquid flow rate, a large amount of small-sized bubbles were efficiently obtained in the liquid. The bubbles jetted from the mixer 10 are dispersed in the liquid in the water tank 38 by the jet flow, and are fine bubbles, so that they are suspended in the liquid for a long time. In this gas-dissolved water production apparatus, when it is desired to always disperse air bubbles in the liquid, the water tank 30 and the water tank 38 may be connected in the same manner as the conduits 34, 36.
【００１７】この実施例の気液溶解混合装置を用いて、
水にオゾンを溶解させた実験結果を表１に示す。ここ
で、オゾン発生量は１００００ｐｐｍ、混合器１０の混
合部２０には長さ０．７ｍのステンレスパイプを用いた
ものである。Using the gas-liquid dissolving and mixing apparatus of this embodiment,
Table 1 shows the experimental results obtained by dissolving ozone in water. Here, the ozone generation amount is 10,000 ppm, and a 0.7 m long stainless steel pipe is used for the mixing portion 20 of the mixer 10.
【００１８】[0018]
【表１】 [Table 1]
【００１９】表１で、始動時間とは、装置の起動後所定
濃度のオゾン水を連続的に製造することができるように
なるまでの立ち上がり時間であり、従来の気泡塔を用い
た場合には３０分程度の立ち上がり時間を要していたの
と比べると、この実施例の気液溶解混合装置は、きわめ
て短時間で効率よく気体溶解水を製造することができる
ものである。In Table 1, the starting time is the rising time until the ozone water having a predetermined concentration can be continuously produced after the start of the apparatus, and when the conventional bubble column is used. Compared with the rise time of about 30 minutes, the gas-liquid dissolving and mixing apparatus of this example can efficiently produce gas-dissolved water in an extremely short time.
【００２０】次にこの発明の第二実施例について図３を
基にして説明する。ここで、上述の実施例と同様の部材
は同一符号を付して説明を省略する。この実施例の混合
器５０は、絞り部であるベンチュリ管１４が形成された
本体部５２とノズル口が形成されたノズル部５４とが分
離され、この両者をつなぐ管路５６が混合部となってい
るものである。Next, a second embodiment of the present invention will be described with reference to FIG. Here, the same members as those in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted. In the mixer 50 of this embodiment, a main body portion 52 in which the venturi pipe 14 that is a throttle portion is formed and a nozzle portion 54 in which a nozzle port is formed are separated, and a pipe line 56 that connects them is a mixing portion. It is what
【００２１】管路５６は、鋼管やフレキシブルな管路で
もよく、流れが乱流になる方がより効率よく気体と液体
が混合されるので、管路５６を螺旋状に設定したり、管
路５６のレイノルズ数を乱流になる値以上の条件に設定
しても良い。The pipe 56 may be a steel pipe or a flexible pipe, and the gas and the liquid are mixed more efficiently when the flow becomes a turbulent flow. The Reynolds number of 56 may be set to a value equal to or higher than a value that causes turbulence.
【００２２】この実施例の気液溶解混合装置によれば、
ノズル部５４の位置を自由に設定することができ、ノズ
ル部５４のみを自由に移動させるようにすることもで
き、自由度が大きくなるものである。According to the gas-liquid dissolving and mixing apparatus of this embodiment,
The position of the nozzle portion 54 can be freely set, and only the nozzle portion 54 can be freely moved, so that the degree of freedom is increased.
【００２３】次にこの発明の第三実施例について図４を
基にして説明する。ここで、上述の実施例と同様の部材
は同一符号を付して説明を省略する。この実施例の混合
器６０は、絞り部であるベンチュリ管１４ののど部１２
からつづいた広がり部６２を、段階的に同心円筒を重ね
た様に形成したものである。これによって、混合器の６
０の製造が容易になるものである。Next, a third embodiment of the present invention will be described with reference to FIG. Here, the same members as those in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted. The mixer 60 of this embodiment includes a throat portion 12 of the Venturi tube 14 which is a throttle portion.
The expanded portion 62 continued from is formed as if concentric cylinders were superposed in stages. This allows the mixer 6
0 is easy to manufacture.
【００２４】尚、この発明の気液溶解混合装置は、気泡
発生のみならず、気体を液体中に溶解させる装置にも利
用できるものである。また、絞り部は、ベンチュリ管に
より形成したものや、オリフィス状に急激に絞ったもの
でも良く、その形状は問わないものである。さらに、ノ
ズル部の形状やノズル口の数も所定の条件に一致させて
適宜設定できるものである。The gas-liquid dissolving / mixing apparatus of the present invention can be used not only for generating bubbles but also for dissolving gas in a liquid. Further, the narrowed portion may be formed by a Venturi tube or sharply narrowed into an orifice shape, and the shape thereof does not matter. Further, the shape of the nozzle portion and the number of nozzle openings can be appropriately set according to predetermined conditions.
【００２５】[0025]
【発明の効果】この発明の気液溶解混合方法及び気液溶
解混合装置は、液体流路に設けられた絞り部のわずかに
下流側で気体を流入させ、上記絞り部から続く広がり部
の下流で気体と液体を混合し、出口に設けられたノズル
から気液混合流を噴出させるので、小型の装置で、大量
に効率よく気体を液体中に混合し、気泡を発生させるこ
とができるものである。さらに、従来の気泡塔を用いた
場合と比べて、ノズル部から出るまでに大量に気体が液
体中に溶解しているので、気体を溶解させる時間を大幅
に短縮することができるものである。The gas-liquid dissolving and mixing method and the gas-liquid dissolving and mixing apparatus according to the present invention allow gas to flow in slightly downstream of the throttle portion provided in the liquid flow path and to the downstream of the widening portion continuing from the throttle portion. Since a gas and a liquid are mixed with each other and a gas-liquid mixed flow is ejected from a nozzle provided at an outlet, a small device can efficiently mix a large amount of gas into a liquid and generate bubbles. is there. Further, as compared with the case of using the conventional bubble column, a large amount of gas is dissolved in the liquid before it comes out of the nozzle portion, so that the time for dissolving the gas can be greatly shortened.
【００２６】また、この発明の気液溶解混合装置は、ノ
ズル部の数や位置も自由に設定することができ、構造が
簡単で製造も容易になり、ノズル部を混合器本体部と分
離した形状にすることにより、ノズル部の位置をより自
由に設定することができる。Further, in the gas-liquid dissolving and mixing apparatus of the present invention, the number and position of the nozzle portions can be freely set, the structure is simple and the manufacturing is easy, and the nozzle portion is separated from the mixer main body portion. With the shape, the position of the nozzle portion can be set more freely.
【図１】この発明の気液溶解混合装置の第一実施例の混
合器の縦断面図である。FIG. 1 is a vertical cross-sectional view of a mixer according to a first embodiment of a gas-liquid dissolution mixing device of the present invention.
【図２】この実施例の気液溶解混合装置を用いた気体溶
解水製造装置の管路図である。FIG. 2 is a pipeline diagram of a gas-dissolved water producing apparatus using the gas-liquid dissolving and mixing apparatus of this embodiment.
【図３】この発明の気液溶解混合装置の第二実施例の混
合器の概略正面図である。FIG. 3 is a schematic front view of a mixer of a second embodiment of the gas-liquid dissolution mixing device of the present invention.
【図４】この発明の気液溶解混合装置の第三実施例の混
合器の部分縦断面図である。FIG. 4 is a partial vertical cross-sectional view of the mixer of the third embodiment of the gas-liquid dissolution mixing device of the present invention.
１０ 混合器 １２ のど部 １４ ベンチュリ管 １６ 広がり部 １８ 気体流入口 ２０ 混合部 ２２ ノズル口 ２４ ノズル部 10 Mixer 12 Throat part 14 Venturi tube 16 Spread part 18 Gas inlet 20 Mixing part 22 Nozzle port 24 Nozzle part
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年４月１３日[Submission date] April 13, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１２[Correction target item name] 0012
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１２】 この実施例の気液溶解混合装置の気体流
入口１８の接続部位における広がり部１６と、ノズル口
２２の面積の総和との関係は、以下の式を満たすもので
あれば良い。 ＰA＜ＰG …（１） ＰGは気体流入口１８から流入する気体の圧力。ＰAは流
体力学上の連続の式及びベルヌーイの定理により、以下
の式により与えられる気体流入口１８の接続部位におけ
る広がり部１６での静圧である。In the gas-liquid dissolving and mixing apparatus of this embodiment, the relationship between the expanded portion 16 at the connection portion of the gas inflow port 18 and the total area of the nozzle port 22 may satisfy the following formula. P A <P G (1) P G is the pressure of the gas flowing in from the gas inlet port 18. P A is at the connection site of the gas inlet 18 given by the following equation according to the continuity equation in fluid dynamics and Bernoulli's theorem.
It is the static pressure at the spreading portion 16 .
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１３[Correction target item name] 0013
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１３】 ＰA＝（１−Ｓ2 B／Ｓ2 A）Ｐ1＋（δＰ＋ＰB）Ｓ2 B／Ｓ2 A …（２） ここで、ＳAは気体流入口１８の接続部位における広が
り部１６の断面積、ＳBはノズル口２２の断面積の総
和、Ｐ1は気体流入口１８の接続部位における広がり部
１６の総圧、δＰは気体流入口１８の接続部位における
広がり部１６からノズル口２２までの圧力損失、ＰBは
ノズル口２２の出口の静圧である。P A = (1−S 2 B / S 2 A ) P 1 + (δP + P B ) S 2 B / S 2 A (2) Here, S A is a wide area at the connection portion of the gas inlet port 18. But
The cross-sectional area of the groove portion 16 , S B is the total cross-sectional area of the nozzle port 22, and P 1 is the widened portion at the connecting portion of the gas inlet port 18.
16 total pressure, δP is at the connection part of the gas inlet 18
The pressure loss from the expanded portion 16 to the nozzle port 22 and P B are the static pressure at the outlet of the nozzle port 22.
【手続補正３】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１４[Correction target item name] 0014
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１４】 従って、上記式（１）、（２）を満たす
様に気体流入口１８の接続部位における広がり部１６及
びノズル口２２の大きさを設定することにより、液体中
に気体を効率的に混合し溶解させる最適な条件が得られ
るものである。また、混合部２０は、加圧下での液体に
気体が溶解し飽和するまでの気液の接触時間が得られる
ものであればより好ましく、気液の接触時間は混合部の
体積に依存するので、混合部の長さがある程度長い方が
気体が飽和点にまで溶解する。また、飽和状態まで溶解
させる必要がない場合は、この混合部２０は短いもので
あっても良い。Therefore, by setting the sizes of the widened portion 16 and the nozzle opening 22 at the connection portion of the gas inlet 18 so as to satisfy the above equations (1) and (2), the gas can be efficiently introduced into the liquid. The optimum conditions for mixing and dissolving are obtained. Further, the mixing section 20 is more preferable as long as it can obtain a gas-liquid contact time until the gas is dissolved and saturated in the liquid under pressure, and the gas-liquid contact time depends on the volume of the mixing section. The gas dissolves up to the saturation point when the length of the mixing part is longer to some extent. Further, when it is not necessary to dissolve the mixture to the saturated state, the mixing section 20 may be short.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 堀 登紀男 大阪府大阪市淀川区三国本町１丁目10番40 号 和泉電気株式会社内 (72)発明者 柏 雅一 大阪府大阪市淀川区三国本町１丁目10番40 号 和泉電気株式会社内 (72)発明者 木下 隆行 大阪府大阪市淀川区三国本町１丁目10番40 号 和泉電気株式会社内 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Tokio Hori 1-10-40 Mikuni Honcho, Yodogawa-ku, Osaka City, Osaka Prefecture Izumi Electric Co., Ltd. (72) Masakazu Kashiwa Mikunihonmachi, Yodogawa-ku, Osaka 1-10-40 Izumi Electric Co., Ltd. (72) Inventor Takayuki Kinoshita 1-10-40 Mikunihonmachi, Yodogawa-ku, Osaka City, Osaka Prefecture Izumi Electric Co., Ltd.
Claims (4)
流側で徐々に管路を広げるとともに、上記絞り部のわず
かに下流側で気体を流入させ、上記広げられた部分の下
流側で気体と液体を混合し、出口に設けられたノズル部
から気液混合流を噴出させることを特徴とする気液溶解
混合方法。1. A part of a liquid flow path is throttled, a pipe is gradually expanded downstream of the throttle part, and gas is allowed to flow in slightly downstream of the restrictor part so as to be downstream of the expanded part. A gas-liquid dissolving and mixing method characterized in that a gas and a liquid are mixed on the side and a gas-liquid mixed flow is ejected from a nozzle portion provided at an outlet.
り部につづいて管路を徐々に広げた広がり部と、上記絞
り部のわずかに下流側の広がり部に設けられた気体流入
口と、上記広がり部の下流に設けられ流路中の液体と上
記気体流入口から流入した気体とを混合する混合部と、
この混合部の出口に設けられたノズル部とを備えたこと
を特徴とする気液溶解混合装置。2. A throttle portion provided in the liquid flow path, a spread portion in which the pipe passage is gradually widened following the throttle portion, and a gas flow provided in the spread portion slightly downstream of the throttle portion. An inlet, a mixing portion provided downstream of the spreading portion for mixing the liquid in the flow channel and the gas flowing in from the gas inlet,
A gas-liquid dissolving and mixing device, comprising: a nozzle portion provided at an outlet of the mixing portion.
成されていることを特徴とする請求項２記載の気液溶解
混合装置。3. The gas-liquid dissolving / mixing apparatus according to claim 2, wherein the nozzle portion is formed with a plurality of nozzle openings.
ねた管路で接続したことを特徴とする請求項２又は３記
載の気液溶解混合装置。4. The gas-liquid dissolving and mixing apparatus according to claim 2 or 3, wherein the throttle portion and the nozzle portion are connected by a pipe line which also serves as a mixing portion.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4148769A JP2554608B2 (en) | 1992-05-14 | 1992-05-14 | Gas-liquid dissolution mixing method and gas-liquid dissolution mixing device |
| PCT/JP1993/000629 WO1993023340A1 (en) | 1992-05-14 | 1993-05-12 | Method and apparatus for dissolving a gas into and mixing the same with a liquid |
| DE69329061T DE69329061T2 (en) | 1992-05-14 | 1993-05-12 | DEVICE FOR SOLVING A GAS IN OR MIXING A LIQUID |
| US08/090,108 US5514267A (en) | 1992-05-14 | 1993-05-12 | Apparatus for dissolving a gas into and mixing the same with a liquid |
| EP19930910333 EP0639160B1 (en) | 1992-05-14 | 1993-05-12 | Apparatus for dissolving a gas into and mixing the same with a liquid |
| TW82109262A TW238259B (en) | 1992-05-14 | 1993-11-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4148769A JP2554608B2 (en) | 1992-05-14 | 1992-05-14 | Gas-liquid dissolution mixing method and gas-liquid dissolution mixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06285344A true JPH06285344A (en) | 1994-10-11 |
| JP2554608B2 JP2554608B2 (en) | 1996-11-13 |
Family
ID=15460250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4148769A Expired - Lifetime JP2554608B2 (en) | 1992-05-14 | 1992-05-14 | Gas-liquid dissolution mixing method and gas-liquid dissolution mixing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2554608B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007313437A (en) * | 2006-05-26 | 2007-12-06 | Yamazaki Co Ltd | Gas-mixed water-generating apparatus and humidifying apparatus |
| KR100887293B1 (en) * | 2007-04-23 | 2009-03-06 | 노복섭 | Microbubble nozzle |
| KR101371367B1 (en) * | 2013-11-05 | 2014-03-12 | 우광재 | Apparatus for generating micro bubble and water treatment facility having the same |
| KR101371366B1 (en) * | 2013-11-05 | 2014-03-12 | 우광재 | Apparatus for generating micro bubble and lake purification apparatus having the same |
| KR101964832B1 (en) * | 2018-08-23 | 2019-04-02 | 이에스피 주식회사 | Water treatment apparatus |
| KR101964828B1 (en) * | 2018-08-23 | 2019-04-02 | 이에스피 주식회사 | Water treatment apparatus |
| JP2020011196A (en) * | 2018-07-18 | 2020-01-23 | 株式会社タムラテコ | Gas dissolution device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2722373B2 (en) | 1993-08-05 | 1998-03-04 | 和泉電気株式会社 | Method and apparatus for producing fine foam |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5429120A (en) * | 1977-08-06 | 1979-03-05 | Jiyuntarou Ishihara | Tremorrsensitive closing apparatus for opening closing valve |
| JPH02280822A (en) * | 1989-03-21 | 1990-11-16 | Boc Group Plc:The | Process and device for dissolving gas into liquid |
-
1992
- 1992-05-14 JP JP4148769A patent/JP2554608B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5429120A (en) * | 1977-08-06 | 1979-03-05 | Jiyuntarou Ishihara | Tremorrsensitive closing apparatus for opening closing valve |
| JPH02280822A (en) * | 1989-03-21 | 1990-11-16 | Boc Group Plc:The | Process and device for dissolving gas into liquid |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007313437A (en) * | 2006-05-26 | 2007-12-06 | Yamazaki Co Ltd | Gas-mixed water-generating apparatus and humidifying apparatus |
| KR100887293B1 (en) * | 2007-04-23 | 2009-03-06 | 노복섭 | Microbubble nozzle |
| KR101371367B1 (en) * | 2013-11-05 | 2014-03-12 | 우광재 | Apparatus for generating micro bubble and water treatment facility having the same |
| KR101371366B1 (en) * | 2013-11-05 | 2014-03-12 | 우광재 | Apparatus for generating micro bubble and lake purification apparatus having the same |
| WO2015068989A1 (en) * | 2013-11-05 | 2015-05-14 | 대웅이엔에스(주) | Micro-bubble generator and water treatment equipment having same |
| JP2020011196A (en) * | 2018-07-18 | 2020-01-23 | 株式会社タムラテコ | Gas dissolution device |
| KR101964832B1 (en) * | 2018-08-23 | 2019-04-02 | 이에스피 주식회사 | Water treatment apparatus |
| KR101964828B1 (en) * | 2018-08-23 | 2019-04-02 | 이에스피 주식회사 | Water treatment apparatus |
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| Publication number | Publication date |
|---|---|
| JP2554608B2 (en) | 1996-11-13 |
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