JP4376888B2 - Microbubble generator - Google Patents

Microbubble generator Download PDF

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Publication number
JP4376888B2
JP4376888B2 JP2006302449A JP2006302449A JP4376888B2 JP 4376888 B2 JP4376888 B2 JP 4376888B2 JP 2006302449 A JP2006302449 A JP 2006302449A JP 2006302449 A JP2006302449 A JP 2006302449A JP 4376888 B2 JP4376888 B2 JP 4376888B2
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introduction path
liquid
gas
outlet
gas introduction
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JP2008114205A5 (en
JP2008114205A (en
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晴示 島田
益成 六軒
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ニッタ・ムアー株式会社
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Priority to JP2006302449A priority Critical patent/JP4376888B2/en
Priority to PCT/JP2007/071553 priority patent/WO2008056663A1/en
Priority to CN200780033979.0A priority patent/CN101594926B/en
Priority to KR1020097005384A priority patent/KR101343254B1/en
Publication of JP2008114205A publication Critical patent/JP2008114205A/en
Publication of JP2008114205A5 publication Critical patent/JP2008114205A5/ja
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    • 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
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B01F23/2326—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles adding the flowing main component by suction means, e.g. using an ejector
    • 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
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • 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
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • 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
    • 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
    • B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms

Description

この発明は、水質浄化、活性化その他の目的で容存酸素量を増大させるべく液中に微細な気泡を発生させる微細気泡発生装置に関するものである。   The present invention relates to a fine bubble generating apparatus for generating fine bubbles in a liquid so as to increase the amount of oxygen present for water purification, activation and other purposes.

この種の微細気泡発生装置としては、例えば有底円筒形のスペースを有する容器本体と、前記スペースの内壁円周面の一部にその接線方向に開設された加圧液体導入口と、前記円筒形のスペースの底壁に開設された気体導入孔と、前記スペースの先部に開設された旋回気液混合体導出口とを備えているものがある（例えば、特許文献１。）。   As this kind of fine bubble generating device, for example, a container body having a cylindrical space with a bottom, a pressurized liquid introduction port opened in a tangential direction on a part of the inner wall circumferential surface of the space, and the cylinder Some have gas introduction holes established in the bottom wall of the shape space and swirl gas-liquid mixture outlets established in the front portion of the space (for example, Patent Document 1).

上記微細気泡発生装置によると、気体導入孔から容器本体内に導入された気体は、微細気泡（マイクロバルブ：直径５０μｍ以下）として容器本体から放出される。   According to the fine bubble generating apparatus, the gas introduced into the container body from the gas introduction hole is discharged from the container body as fine bubbles (microvalve: diameter of 50 μm or less).

しかしながら、上記微細気泡発生装置では、一旦、固定部分に取り付けると気体及び液体の導入方向を自由に変化させることができないという不便さがあという問題があった。
国際公開番号ＷＯ００／６９５５０ However, the microbubble generator has a problem that once it is attached to a fixed part, the introduction direction of gas and liquid cannot be freely changed.
International Publication Number WO00 / 69550

そこで、この発明では、一旦、固定部分に取り付けると気体及び液体の導入方向を自由に変化させ得る微細気泡発生装置を提供することを課題とする。   Therefore, an object of the present invention is to provide a microbubble generator that can change the introduction direction of gas and liquid once attached to a fixed portion.

（請求項１記載の発明）
この発明の微細気泡発生装置は、液体導入路とその中心部分に設けられた気体導入路を有する第１構成体と、液体導入路からの液体を螺旋流に変化させながら気体導入路の出口付近に至らしめる螺旋状液体導入路と、螺旋流となった液体と気体導入路からの気体よりなる気液体混合体を排出する気液混合導出口とを有する第２構成体とを具備し、前記第１構成体と第２構成体とが気密状態に相対回転可能に接続されている。
（請求項２記載の発明）
この発明の微細気泡発生装置は、請求項１記載の発明に関し、液体導入路の始端部はチューブの接続・離反が容易なチューブ継手により形成してあり、気体導入路の始端部は流量調整可能又は流量固定の空気流入口により形成してある。
（請求項３記載の発明）
この発明の微細気泡発生装置は、請求項２記載の発明に関し、第１構成体側における流量調整弁の気体導入路に繋がる部分と、第２構成体側における螺旋状液体導入路の中央固体部との間に、気体導入路となるチューブの各端部をそれぞれに挿入する態様で架設してあり、流量調整弁を取り外した状態において、前記チューブは引き取れるようにしてある。
（請求項４記載の発明）
この発明の微細気泡発生装置は、請求項１乃至３のいずれかに記載の発明に関し、第１構成体と第２構成体とは取り外し可能であることを特徴とする請求項１乃至３のいずれかに記載の微細気泡発生装置。
（請求項５記載の発明）
この発明の微細気泡発生装置は、請求項１記載の発明に関し、液体導入路と気体導入路とが、それぞれ横Ｌ字状に形成され、第１構成体と第２構成体とは、第１構成体の下端部を第２構成体の上端部に挿入し、第１構成体と第２構成体の構成壁に割りピンを打ち込む態様で相対回転可能に接続されている。 (Invention of Claim 1)
The fine bubble generating apparatus of the present invention includes a first structure having a liquid introduction path and a gas introduction path provided at a central portion thereof, and the vicinity of the outlet of the gas introduction path while changing the liquid from the liquid introduction path into a spiral flow And a second structure having a gas-liquid mixture outlet for discharging a gas-liquid mixture composed of the liquid that has become a spiral flow and a gas from the gas introduction path, The 1st structure and the 2nd structure are connected to the airtight state so that relative rotation is possible.
(Invention of Claim 2)
The fine bubble generating apparatus according to the present invention relates to the invention described in claim 1, wherein the start end of the liquid introduction path is formed by a tube joint that allows easy connection and separation of the tube, and the start end of the gas introduction path can be adjusted in flow rate. Alternatively, it is formed by an air inlet having a fixed flow rate.
(Invention of Claim 3)
According to a second aspect of the present invention, there is provided the fine bubble generating device according to the second aspect of the present invention, comprising: a portion connected to the gas introduction path of the flow rate adjustment valve on the first component side; In the middle, each end of the tube serving as a gas introduction path is inserted into the tube, and the tube can be pulled out in a state where the flow rate adjustment valve is removed.
(Invention of Claim 4)
The fine bubble generating apparatus of the present invention relates to the invention according to any one of claims 1 to 3, wherein the first component and the second component are removable. A device for generating fine bubbles according to crab.
(Invention of Claim 5)
The fine bubble generating device of the present invention relates to the invention of claim 1, wherein the liquid introduction path and the gas introduction path are each formed in a lateral L shape, and the first configuration body and the second configuration body are the first The lower end portion of the constituent body is inserted into the upper end portion of the second constituent body, and the split pins are driven into the constituent walls of the first constituent body and the second constituent body so as to be relatively rotatable.

この発明の微細気泡発生装置によると、一旦、固定部分に取り付けた後でも気体及び液体の導入方向を自由に変化させることができる。   According to the fine bubble generating apparatus of the present invention, the gas and liquid introduction directions can be freely changed even after once being attached to the fixed portion.

以下にこの発明の微細気泡発生装置を実施するための最良の形態として実施例について詳しく説明する。   Embodiments will be described in detail below as the best mode for carrying out the fine bubble generator of the present invention.

図１はこの発明の実施例１における微細気泡発生装置Ｂの部分断面図、図２は図１の拡大断面図を示している。   FIG. 1 is a partial cross-sectional view of a microbubble generator B according to Embodiment 1 of the present invention, and FIG. 2 is an enlarged cross-sectional view of FIG.

（この微細気泡発生装置Ｂの基本的構成について）
この微細気泡発生装置Ｂは、図１に示すように、第１構成体１と第２構成体２とを気密状態に相対回転可能として成るものであり、前記第１構成体１は主として、液体導入路３とその中心部分に設けられた気体導入路４を有するものであり、前記第２構成体２は主として、液体導入路３からの液体を螺旋流に変化させながら気体導入路４の出口付近に至らしめる螺旋状液体導入路５と、螺旋流となった液体と気体導入路４からの気体よりなる気液混合体を排出する気液混合導出口６とを有するものである。 (Regarding the basic configuration of the fine bubble generator B)
As shown in FIG. 1, the fine bubble generating device B is configured such that the first structural body 1 and the second structural body 2 can be relatively rotated in an airtight state. The first structural body 1 is mainly a liquid. It has an introduction path 3 and a gas introduction path 4 provided in the central portion thereof, and the second component 2 mainly has an outlet of the gas introduction path 4 while changing the liquid from the liquid introduction path 3 into a spiral flow. It has a spiral liquid introduction path 5 that leads to the vicinity, and a gas-liquid mixture outlet 6 that discharges a gas-liquid mixture composed of the spiraled liquid and the gas from the gas introduction path 4.

ここで、この微細気泡発生装置Ｂにおいては、図１や図２に示すように、液体導入路３の始端部はチューブの接続・離反が容易なチューブ継手７（所謂ワンタッチ継手）により形成してあり、気体導入路４の始端部は流量調整弁８により形成してある。   Here, in this fine bubble generating device B, as shown in FIGS. 1 and 2, the starting end of the liquid introduction path 3 is formed by a tube joint 7 (so-called one-touch joint) that allows easy connection and separation of the tube. Yes, the start end of the gas introduction path 4 is formed by a flow rate adjusting valve 8.

（第１構成体１と第２構成体２の接続構造について）
図１に示すように、第１構成体１の下端部を第２構成体２の上端部に挿入しており、第１・第２構成体１，２相互間にＯリング９０を介在させると共に、第１・第２構成体１，２の構成壁に二本の割りピン９１，９１を打ち込む（全周に凹部９２を形成し、最小径部である凹部９２の底面と割りビン９１とが摺動する態様で回転可能となるように打ち込む）ようにしてある。なお、上記割りピン９１，９１は、第２構成体２に対する第１構成体１の抜け止め機能としても働いている。 (About the connection structure of the first component 1 and the second component 2)
As shown in FIG. 1, the lower end of the first structure 1 is inserted into the upper end of the second structure 2, and an O-ring 90 is interposed between the first and second structures 1 and 2. The two split pins 91 and 91 are driven into the constituent walls of the first and second constituent bodies 1 and 2 (the recess 92 is formed on the entire circumference, and the bottom surface of the recess 92 and the split bin 91 are the smallest diameter portions. It is driven so that it can rotate in a sliding manner). The split pins 91 and 91 also function as a retaining function of the first structural body 1 with respect to the second structural body 2.

この第１構成体１と第２構成体２が一体となったものを分離する場合、ピン９１，９１を第１・第２構成体１，２から押し出すようにすればよい。
（第１構成体１と第２構成体２の構成について）
第１構成体１は、上述した如く、図１や図２に示すように、液体導入路３と、気体導入路４、チューブ継手７、流量制御弁８を有しており、第２構成体２は螺旋状液体導入路５と、気液混合導出口６とを有している。 When separating the first component 1 and the second component 2 together, the pins 91 and 91 may be pushed out of the first and second components 1 and 2.
(About the structure of the 1st structure 1 and the 2nd structure 2)
As described above, the first structure 1 includes the liquid introduction path 3, the gas introduction path 4, the tube joint 7, and the flow rate control valve 8, as shown in FIG. 1 and FIG. 2 has a spiral liquid introduction path 5 and a gas-liquid mixture outlet 6.

液体導入路３は、図１に示すように、横Ｌ字状に形成されており、チューブ継手７に接続されたチューブｔから入ってきた液体を、下方に導く態様で螺旋状液体導入路５まで延びている。ここで、前記螺旋状液体導入路５は、図１に示すように全体として略円錐形状となっており、中央固体部５０の外周面に螺旋羽根５１を取り付ける形態を採っている。   As shown in FIG. 1, the liquid introduction path 3 is formed in a horizontal L shape, and the spiral liquid introduction path 5 is configured to guide the liquid that has entered from the tube t connected to the tube joint 7 downward. It extends to. Here, as shown in FIG. 1, the spiral liquid introduction path 5 has a substantially conical shape as a whole, and takes a form in which a spiral blade 51 is attached to the outer peripheral surface of the central solid portion 50.

したがって、チューブｔから入ってきた液体は、チューブ継手７→横Ｌ字状の液体導入路３→螺旋状液体導入路５（このとき初めて螺旋流となる）→気液混合導出口６の経路で排出される。   Therefore, the liquid that has entered from the tube t passes through the tube joint 7 → the horizontal L-shaped liquid introduction path 3 → the spiral liquid introduction path 5 (which is a spiral flow for the first time) → the gas-liquid mixture outlet 6. Discharged.

次に、気体導入路４は、図１や図２に示すように、横Ｌ字状に形成されており、液体が気液混合導出口６から排出されることによって生ずる流量調整弁８内が負圧力により開口部８０から吸引されるようになっている。   Next, as shown in FIG. 1 and FIG. 2, the gas introduction path 4 is formed in a horizontal L shape, and the inside of the flow rate adjustment valve 8 generated when the liquid is discharged from the gas-liquid mixture outlet 6 is formed. It is sucked from the opening 80 by a negative pressure.

ここで、この実施例では、気体導入路４の大部分はチューブ４０により構成されており、当該チューブ４０の上部を螺子体４１の凹部４２に挿脱可能に、当該チューブ４０の下部を中央固体部５０の凹部５２に挿脱可能に、それぞれ挿入する態様で保持してある。尚、螺子体４１には前記凹部４２とこれよりも上方側の小径孔４３により貫通孔が形成されており、この貫通孔は流量調整弁８が構成する気体導入路４と繋がっている。そして、流量調整弁８及び螺子体４１を外した状態においてチューブ４０を上方に引き取れる（逆に挿入もできる）ようにし、これにより第１構成体１と第２構成体２とを分離しなくともチューブ４０を交換できるようにしてある。また、中央固定部５０には前記凹部５２とこれよりも下方側の小径孔５３により貫通孔が形成されており、前記貫通孔の開放部を気液混合導出口６に対面させるようにしている。   Here, in this embodiment, most of the gas introduction path 4 is constituted by the tube 40, and the upper part of the tube 40 can be inserted into and removed from the recessed part 42 of the screw body 41, and the lower part of the tube 40 is placed in the central solid state. It hold | maintains in the aspect inserted, respectively so that insertion / detachment is possible in the recessed part 52 of the part 50. In addition, a through hole is formed in the screw body 41 by the concave portion 42 and a small-diameter hole 43 on the upper side thereof, and this through hole is connected to the gas introduction path 4 formed by the flow rate adjusting valve 8. Then, the tube 40 can be pulled upward (can be inserted in reverse) in a state where the flow rate adjusting valve 8 and the screw body 41 are removed, so that the first structural body 1 and the second structural body 2 are not separated. Both tubes 40 can be exchanged. Further, a through hole is formed in the central fixing portion 50 by the concave portion 52 and a small-diameter hole 53 on the lower side thereof, and the open portion of the through hole faces the gas-liquid mixing outlet port 6. .

チューブ継手７は、図１や図２に示すように、第１構成体１の横に延びる筒状部に、奥側から開放部に向ってチューブシール７０、バックリング７１、ロックリング７２、カラー７３、リリーススリーブ７４の順序で挿入して構成されている。なお、このチューブ継手7においては、チューブｔをリリーススリーブ７４に挿入し、ロックリング７２を介してチューブｔを抜け止め状態にする。また、チューブｔを抜き取る場合にはリリーススリーブ７４を押し込み、ロックリング７２の爪を起こすようにすればよい。   As shown in FIG. 1 and FIG. 2, the tube joint 7 includes a tube seal 70, a back ring 71, a lock ring 72, a collar on a cylindrical portion extending laterally of the first structural body 1 from the back side toward the open portion. 73 and release sleeve 74 are inserted in this order. In this tube joint 7, the tube t is inserted into the release sleeve 74, and the tube t is prevented from being detached via the lock ring 72. Further, when the tube t is pulled out, the release sleeve 74 may be pushed to raise the claw of the lock ring 72.

流量調整弁８は、市販のものを使用しており、図１や図２に示した操作部８１を正逆回転すれば、開口部８０から吸引される気体量を自由に変化させることができる。なお、この流量調整弁８は、上記チューブ継手７と同様のチューブ接続機能を有しているが、このチューブ接続機能は無くてもよい。   The flow rate adjusting valve 8 is a commercially available one, and the amount of gas sucked from the opening 80 can be freely changed by rotating the operation unit 81 shown in FIGS. 1 and 2 forward and backward. . Although the flow rate adjusting valve 8 has the same tube connection function as the tube joint 7, the tube connection function may not be provided.

また、第２構成体２は、図１に示すように、上部域に拡大径部２０を有していると共に下部域に雄螺子２１を形成してあり、前記雄螺子２１にナット２２を螺合させてある。ここで、この第２構成体２をタンクＴ（内部に液体を収容してある）等に取り付ける場合、上記拡大径部２０とナット２１によりタンクＴの壁板を挟むようにすればよい。   Further, as shown in FIG. 1, the second structural body 2 has an enlarged diameter portion 20 in the upper region and a male screw 21 formed in the lower region, and a nut 22 is screwed into the male screw 21. Combined. Here, when the second structural body 2 is attached to a tank T (which contains a liquid therein) or the like, the wall plate of the tank T may be sandwiched between the enlarged diameter portion 20 and the nut 21.

（この微細気泡発生装置Ｂの働きについて）
この微細気泡発生装置Ｂを使用する際には、図１に示すように、少なくとも第2構成体２の気液混合導出口６を液体中に漬け、液体導入路３に加圧液体を圧送する。 (About the function of this microbubble generator B)
When using this microbubble generator B, as shown in FIG. 1, at least the gas-liquid mixing outlet 6 of the second component 2 is immersed in the liquid, and the pressurized liquid is pumped to the liquid introduction path 3. .

すると、チューブｔから入ってきた加圧液体は、チューブ継手７→横Ｌ字状の液体導入路３→螺旋状液体導入路５（このとき初めて螺旋流となり、その直後、気体導入路４から導かれてきた気体と混合状態となる）→気液混合導出口６の経路で排出されることとなり、タンクＴ内の液体中に大量の微細気泡が発生することになる。なお、この微細気泡の発生メカニズムは公知であるので詳述しない。   Then, the pressurized liquid that has entered from the tube t becomes the tube joint 7 → the horizontal L-shaped liquid introduction path 3 → the spiral liquid introduction path 5 (at this time, the spiral flow becomes the first time, and immediately after that, the gas is introduced from the gas introduction path 4. The gas is mixed with the gas that has been released) → the gas-liquid mixture outlet 6 is discharged, and a large amount of fine bubbles are generated in the liquid in the tank T. In addition, since the generation | occurrence | production mechanism of this fine bubble is well-known, it is not explained in full detail.

図３はこの発明の実施例２における微細気泡発生装置Ｂの部分断面図を示している。 FIG. 3 shows a partial cross-sectional view of a fine bubble generator B according to Embodiment 2 of the present invention.

この実施例２の微細気泡発生装置Ｂは、上記実施例１と基本的には同じであるが、相違する点は、実施例１では流量制御弁８を第１構成体１に螺合してあるのに対して、延長した気体導入路４に流量調整弁８を直接取り付けるようにている。   The fine bubble generating device B of the second embodiment is basically the same as the first embodiment, except that the flow control valve 8 is screwed into the first structure 1 in the first embodiment. On the other hand, the flow rate adjusting valve 8 is directly attached to the extended gas introduction path 4.

このような実施例２の微細気泡発生装置Ｂにおいても、同様の機能を奏することが明らかである。
（その他の構成について）
第１構成体１、第２構成体２は、チューブ４０等の全ての材料は、液体、環境、用途に応じて、黄銅、ステンレス等の金属や各種合成樹脂材料により構成することができる
上記第１実施例では、空気流入口として流量調整弁（流体量を調整できる）を使用しているが、これに限定されることなく、オリフィス（流体量を固定とする）とすることができる。要するに、気体導入路の始端部は流量調整可能又は流量固定の空気流入口であればよい。 It is clear that the microbubble generator B of Example 2 has the same function.
(About other configurations)
In the first structure 1 and the second structure 2, all materials such as the tube 40 can be composed of metals such as brass and stainless steel and various synthetic resin materials according to the liquid, environment, and usage. In one embodiment, a flow rate adjustment valve (which can adjust the amount of fluid) is used as the air inlet, but the present invention is not limited to this, and an orifice (fixed amount of fluid) can be used. In short, the starting end of the gas introduction path may be an air inlet that can adjust the flow rate or has a fixed flow rate.

この発明の実施例１における微細気泡発生装置Ｂの部分断面図。The fragmentary sectional view of the fine bubble generator B in Example 1 of this invention. 図１の拡大断面図。The expanded sectional view of FIG. この発明の実施例２における微細気泡発生装置Ｂの部分拡大図。The elements on larger scale of the fine bubble generator B in Example 2 of this invention.

符号の説明Explanation of symbols

Ｂ 微細気泡発生装置
１ 第１構成体
２ 第２構成体
３ 液体導入路
４ 気体導入路
５ 螺旋状液体導入路
５０ 中央固体部
５１ 螺旋状羽根
６ 気液混合導出口
７ チューブ継手
８ 流量調整弁


















B Fine bubble generator
1 first component
2 Second structure 3 Liquid introduction path 4 Gas introduction path 5 Spiral liquid introduction path 50 Central solid part 51 Spiral blade 6 Gas-liquid mixing outlet 7 Tube joint 8 Flow control valve


















Claims (5)

始端部から流入した気体が出口から流出する気体導入路と、始端部から流入した液体が出口から流出する液体導入路とを有し、前記気体導入路が前記液体導入路に沿って延び、前記気体導入路の出口が前記液体導入路の出口の近傍に位置するように構成された第1構成体と、
前記液体導入路からの液体を螺旋流に変化させながら前記気体導入路の出口付近に至らしめる螺旋状液体導入路と、螺旋流となった液体に前記気体導入路からの気体を混合させて気液混合体を排出する気液混合導出口とを有する第２構成体とを具備し、
前記第１構成体の端部が前記第２構成体の端部に対して気密状態に相対回転可能に接続されていることを特徴とする微細気泡発生装置。 A gas introduction path through which the gas flowing in from the start end flows out from the outlet, and a liquid introduction path through which the liquid flowing in from the start end flows out from the outlet, the gas introduction path extending along the liquid introduction path, A first structure configured such that an outlet of the gas introduction path is positioned in the vicinity of the outlet of the liquid introduction path ;
And the gas introduction passage spiral liquid introduction path allowed to reach the vicinity of the outlet while the liquid is changed to helical flow from the liquid introduction path, by mixing air of from the gas introduction passage into the liquid became helical flow A second structure having a gas-liquid mixture outlet for discharging the gas-liquid mixture ;
It said first structure fine fine bubble generating device you characterized by being relatively rotatably connected to the airtight end to the end of the second structure of the. 液体導入路の始端部はチューブを接続・離反することが可能であり、気体導入路の始端部は流量調整弁又はオリフィスが設けられることを特徴とする請求項1記載の微細気泡発生装置。 2. The fine bubble generating device according to claim 1 , wherein a tube can be connected to and separated from a start end portion of the liquid introduction path , and a flow rate adjusting valve or an orifice is provided at the start end portion of the gas introduction path. 第１構成体において流量調整弁の気体導入路に繋がる部分と、第２構成体において螺旋状液体導入路に繋がる部分との間に、気体導入路となるチューブの両端部を挿入してあり、流量調整弁を取り外した状態において、前記チューブは第1および第２構成体に対して着脱可能であることを特徴とする請求項２記載の微細気泡発生装置。 A portion connected to a gas introduction path of the flow control valve in the first structure, between a portion connected to the spiral liquid introduction passage in the second structure, there is inserted both ends of the tube of the gas inlet passage 3. The microbubble generator according to claim 2, wherein the tube is detachable from the first and second structural bodies in a state in which the flow regulating valve is removed. 第１構成体と第２構成体とは取り外し可能であることを特徴とする請求項1乃至３のいずれかに記載の微細気泡発生装置。   The microbubble generator according to any one of claims 1 to 3, wherein the first component and the second component are removable. 液体導入路と気体導入路とが、それぞれ横Ｌ字状に形成され、第１構成体と第２構成体とは、第１構成体の下端部を第２構成体の上端部に挿入し、第1構成体と第２構成体の構成壁に割りピンを打ち込む態様で相対回転可能に接続されていることを特徴とする請求項1記載の微細気泡発生装置。   The liquid introduction path and the gas introduction path are each formed in a lateral L-shape, and the first structure and the second structure are configured such that the lower end of the first structure is inserted into the upper end of the second structure, 2. The fine bubble generating device according to claim 1, wherein the fine bubble generating device is connected so as to be relatively rotatable in a manner in which a split pin is driven into the constituent walls of the first and second constituent bodies.
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