JP2023086210A - Bubble generation device and bubble generator - Google Patents

Bubble generation device and bubble generator Download PDF

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JP2023086210A
JP2023086210A JP2021200568A JP2021200568A JP2023086210A JP 2023086210 A JP2023086210 A JP 2023086210A JP 2021200568 A JP2021200568 A JP 2021200568A JP 2021200568 A JP2021200568 A JP 2021200568A JP 2023086210 A JP2023086210 A JP 2023086210A
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inflow
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throttle hole
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JP7546921B2 (en
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康洋 水上
Yasuhiro Mizukami
真輝 平江
Masateru Hirae
隆宏 奥村
Takahiro Okumura
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Science Inc Japan
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Abstract

To provide a bubble generation device which can mix and dissolve a large amount of micro-sized air bubbles and nano-sized air bubbles into a liquid and discharge the mixture, and to provide a bubble generator.SOLUTION: The invention includes: a liquid contraction hole 41 formed at a nozzle body 19; a liquid guide core 47 having first and second spiral surfaces 55, 56; and a liquid closing plate 46. The liquid guide core 47 is formed integral with the liquid closing plate 46. The liquid closing plate 46 has first and second liquid introduction holes 55, 56. The liquid guide core 47 is attached to the liquid contraction hole 41 from the side of an inflow passage 8, and the liquid closing plate 46 is placed in contact with the nozzle body 19 to close the liquid contraction hole 41. First and second liquid passages δ1, δ2 having spiral shapes are formed between the liquid guide core 47 and the liquid contraction hole 41. A liquid flows into the inflow passage 8 and then flows from the inflow passage 8 into the first and second liquid passages δ1, δ2 through first and second liquid introduction holes 51, 52.SELECTED DRAWING: Figure 9

Description

本発明は、マイクロ単位の気泡、及びナノ単位の気泡を液体に混入、溶け込ませて、マイクロ単位の気泡及びナノ単位の気泡が混入、溶け込んだ液体を流出するバブル発生装置、及びバブル発生器に関する。 TECHNICAL FIELD The present invention relates to a bubble generator and a bubble generator for mixing and dissolving micro-unit bubbles and nano-unit bubbles in a liquid, and for discharging the liquid in which the micro-unit bubbles and nano-unit bubbles are mixed and dissolved. .

バブルを発生する技術として、特許文献１は、マイクロバブル発生装置を開示する。マクロバブル発生装置は、ボルダ、インレットアダプター及びミキシングアダプターを備え、各アダプターは、ホルダに取付けられる。インレットアダプターは、液体流路中に、ミキシングアラプターに向けて段々に縮径する液体絞り穴を有する。ミキシングアダプターは、液体流出口に向けて段々に拡径する液体流路を有する。
マイクロバブル発生装置は、液体流入口から液体をインレットアダプターの液体絞り穴に流入して、液体をミキシングアラプターの液体流路を噴射する。マイクルバブル発生装置は、絞り穴の噴出側で空気を液体に混合して、ミキシングアダプターの液体流路にてマイクロバブルを発生する。 As a technique for generating bubbles, Patent Literature 1 discloses a microbubble generator. The macrobubble generator comprises a boulder, an inlet adapter and a mixing adapter, each adapter being attached to a holder. The inlet adapter has a liquid throttle hole in the liquid flow path that tapers toward the mixing adapter. The mixing adapter has a liquid channel that tapers toward the liquid outlet.
The microbubble generator causes the liquid to flow from the liquid inlet into the liquid throttle hole of the inlet adapter, and ejects the liquid through the liquid channel of the mixing adapter. The microbubble generator mixes air with the liquid on the ejection side of the throttle hole to generate microbubbles in the liquid channel of the mixing adapter.

特開２０１５－９３２１９号公報JP 2015-93219 A

特許文献１では、液体絞り穴から液体を噴出して、空気と混合することで、空気を粉砕（剪断）して、ある程度のマイクロバブルを発生できるものの、更に液体に混入、溶け込ませるマイクロバブルの量を増加し、及びナノ単位のバブルを混入、溶け込ませることが望まれている。 In Patent Document 1, liquid is ejected from a liquid throttle hole and mixed with air to pulverize (shear) the air and generate a certain amount of microbubbles. It is desired to increase the amount and to incorporate and dissolve nano-scale bubbles.

本発明は、多量のマイクロ単位の気泡及びナノ単位の気泡を液体に混入、溶け込ませて流出できるバブル発生装置、及びバブル発生器を提供することにある。 SUMMARY OF THE INVENTION It is an object of the present invention to provide a bubble generating device and a bubble generator capable of mixing and dissolving a large amount of micro-unit bubbles and nano-unit bubbles in a liquid and allowing them to flow out.

本発明に係る請求項１は、流入路、流出路、前記流入路に開口する流入口及び前記流出路に開口する流出口を有し、液体が前記流入口から前記流入路に流入され、前記流出路を流れる液体を前記流出口から流出する流れ筒体と、前記流入路及び前記流出路の間の前記流れ筒体内に配置され、前記流入路を前記流出路から閉塞するノズル本体、及び前記ノズル本体に形成され、前記流入路から流入される液体を前記流出路に噴射するノズル穴を有する噴射ノズルと、前記噴射ノズルに配置されるバブル発生器と、を備え、前記バブル発生器は、前記ノズル本体に形成され、前記流入路及び前記ノズル穴に連通される液体絞り穴と、板状に形成される液体閉塞板、及び円錐渦巻き状に形成される液体ガイドコアを有する液体ガイドと、を備え、前記液体絞り穴は、前記流入路側から縮径しつつ延在される円錐穴に形成され、前記液体閉塞板は、前記液体閉塞板を貫通して、前記液体閉塞板の板表面及び板裏面に開口される複数の液体導入穴を有し、前記液体ガイドコアは、同一の渦巻き状に形成される前記液体導入穴と同数の渦巻き面を有し、前記液体ガイドコアの円錐底面を前記液体閉塞板の前記板表面に当接して、前記液体閉塞板と一体にされ、前記各渦巻き面は、前記液体ガイドコアの円錐側面に交差して、前記液体ガイドコアの前記円錐底面及び円錐上面の間に配置され、前記円錐底面から前記円錐上面に向けて縮径しつつ渦巻き状に形成され、前記円錐底面側の渦巻き面端を前記各液体導入穴内に突出して配置され、前記液体ガイドは、前記液体ガイドコアを前記流入路側から前記液体絞り穴に挿入し、前記液体閉塞板の前記板表面を前記流入路側から前記ノズル本体に当接して前記液体絞り穴を閉塞し、前記円錐側面及び前記液体絞り穴の円錐内周面の間に隙間を隔てて、前記液体ガイドコアを前記円錐上面から前記液体絞り穴内に挿入し、前記液体ガイドコアの前記各渦巻き面、及び前記液体絞り穴の前記円錐内周面の間に、渦巻き状の複数の液体流路を形成しつつ前記液体ガイドコアを前記液体絞り穴内に装着して、前記ノズル本体に配置され、前記各液体流路は、前記ノズル穴に開口され、前記各渦巻き面の前記渦巻き面端から前記各液体導入穴に開口され、及び前記各液体導入穴を通して前記流入路に連通されることを特徴とするバブル発生装置である。 Claim 1 according to the present invention has an inflow path, an outflow path, an inflow opening opening in the inflow path, and an outflow opening opening in the outflow path, and a liquid flows into the inflow path from the inflow opening, and the liquid flows into the inflow path from the inflow opening. a flow cylinder for causing the liquid flowing in the outflow passage to flow out from the outflow port; a nozzle body disposed in the flow cylinder between the inflow passage and the outflow passage to block the inflow passage from the outflow passage; an injection nozzle formed in a nozzle body and having a nozzle hole for injecting the liquid flowing in from the inflow passage to the outflow passage; and a bubble generator arranged in the injection nozzle, wherein the bubble generator comprises: a liquid guide having a liquid restriction hole formed in the nozzle body and communicating with the inflow passage and the nozzle hole, a liquid blocking plate formed in a plate shape, and a liquid guide core formed in a conical spiral; wherein the liquid throttle hole is formed in a conical hole extending from the inflow path side while decreasing in diameter, and the liquid blockage plate penetrates the liquid blockage plate to form a plate surface of the liquid blockage plate and The liquid guide core has a plurality of liquid introduction holes opened in the back surface of the plate, the liquid guide core has the same number of spiral surfaces as the liquid introduction holes formed in the same spiral shape, and the conical bottom surface of the liquid guide core abutting the plate surface of the liquid-obstruction plate and being integrated with the liquid-obstruction plate, each of the spiral surfaces intersecting the conical side surface of the liquid guide core, the conical bottom surface and conical surface of the liquid guide core; The liquid guide is arranged between the upper surfaces, is formed in a spiral shape while decreasing in diameter from the conical bottom surface toward the conical upper surface, and is arranged so that the end of the spiral surface on the conical bottom surface side protrudes into each of the liquid introduction holes. inserts the liquid guide core into the liquid throttle hole from the inflow path side, the plate surface of the liquid blocking plate abuts against the nozzle body from the inflow path side to block the liquid throttle hole, and the conical side surface and the liquid guide core is inserted into the liquid throttle hole from the conical upper surface with a gap between the conical inner peripheral surface of the liquid throttle hole, and the spiral surfaces of the liquid guide core and the liquid throttle hole The liquid guide core is mounted in the liquid throttle hole while forming a plurality of spiral liquid flow paths between the conical inner peripheral surfaces of the nozzle body, and each of the liquid flow paths is The bubble generating device is characterized in that it is open to the nozzle hole, is open to the liquid introduction hole from the spiral surface end of each spiral surface, and communicates with the inflow passage through the liquid introduction hole. .

本発明に係る請求項１では、液体は、流入口から流入路に流入する。流入路を流れる液体は、液体閉塞板の板裏面に沿って各液体導入穴に流入される。流入路を流れる液体は、流入路から直接、各液体導入穴に流入される。各液体導入穴に流入した液体は、各渦巻き面の渦巻き面端から各液体流路に流入される。
これにより、請求項１では、液体を、各液体導入穴から各液体流路に連続して流入でき、常に、安定した流量（一定流量）の液体を各液体流路に流入できる。
請求項１では、液体は、各液体流路を流れることで、多量のマイクロ単位の気泡（マイクロバブル）及びナノ単位の気泡（ウルトラファインバブル）の混入、溶け込んだバブル水となる。マイクロバブル及びウルトラファインバブルの混入、溶け込んだバブル水は、渦巻き状の各液体流路によって渦流（旋回流）にされて、ノズル穴から流出路に噴射される。なお、国際基準化機構（ＩＳＯ）の国際規格「ＩＳＯ２０４８０－１」には、１マクロメートル（μｍ）以上１００マイクロメート（μｍ）の気泡を「マイクロバブル」、１マイクロメートル（μｍ）未満の気泡を「ウルトラファンバブル」と定めている（以下、同様）。 According to claim 1 of the present invention, the liquid flows into the inflow channel from the inflow port. The liquid flowing through the inflow channel flows into each liquid introduction hole along the back surface of the liquid blocking plate. The liquid flowing through the inflow channel directly flows into each liquid introduction hole from the inflow channel. The liquid that has flowed into each liquid introduction hole flows into each liquid channel from the spiral surface end of each spiral surface.
Thus, in the first aspect, liquid can be continuously introduced from each liquid introduction hole into each liquid channel, and a stable flow rate (constant flow rate) of liquid can always be introduced into each liquid channel.
According to claim 1, the liquid becomes bubble water in which a large amount of micro-unit bubbles (microbubbles) and nano-unit bubbles (ultra-fine bubbles) are mixed and dissolved by flowing through each liquid channel. The bubble water mixed with and dissolved in microbubbles and ultra-fine bubbles is swirled (swirling flow) by each spiral liquid channel and jetted from the nozzle hole to the outflow channel. In addition, in the international standard "ISO20480-1" of the International Organization for Standardization (ISO), bubbles of 1 micrometer (μm) or more and 100 micrometers (μm) are "microbubbles", and bubbles of less than 1 micrometer (μm) is defined as “Ultra Fun Bubble” (same below).

本発明に係る請求項２では、前記流れ筒体の前記流入路に接続される気体導入管と、前記気体導入管に配置される逆止弁と、を備え、前記気体導入管は、一方の管端を前記流入路に連通し、及び他方の管端から気体が流入され、前記逆止弁は、前記気体導入管の一方の管端側への流れを許容し、他方の管端側への流れを阻止することを特徴とする請求項１に記載のバブル発生装置である。 According to claim 2 of the present invention, a gas introduction pipe connected to the inflow path of the flow cylinder and a check valve arranged in the gas introduction pipe are provided, and the gas introduction pipe A pipe end is communicated with the inflow passage, and gas is introduced from the other pipe end, and the check valve allows the flow to the one pipe end side of the gas introduction pipe and to the other pipe end side. 2. The bubble generator according to claim 1, wherein the flow of is blocked.

本発明の請求項２では、流入路を流れる液体に気体を混入でき、液体に気体の混入する気体混入液体を各液体導入穴から各液体流路に流入できる。 According to claim 2 of the present invention, the gas can be mixed with the liquid flowing through the inflow path, and the gas-mixed liquid in which the gas is mixed with the liquid can flow into each liquid flow path through each liquid introduction hole.

本発明に係る請求項３は、前記流入路は、前記液体絞り穴及び前記流入口の間に配置され、前記液体絞り穴から拡径される気液流入穴と、前記気液流入穴及び前記流出口の間に配置され、前記気液流入穴から縮径される第１流入絞り穴と、前記第１流入絞り穴及び前記流出口の間に配置され、前記第１流入絞り穴から縮径され、液体が前記流入口から流入される第２流入絞り穴と、を有し、前記気体導入管は、一方の管端を前記第１流入絞り穴に連通して、前記流入路に接続されることを特徴とする請求項２に記載のバブル発生装置である。 According to a third aspect of the present invention, the inflow path is arranged between the liquid throttle hole and the inflow port, and includes a gas-liquid inflow hole having a diameter enlarged from the liquid throttle hole, the gas-liquid inflow hole and the gas-liquid inflow hole. a first inflow throttle hole arranged between the outflow ports and having a reduced diameter from the gas-liquid inflow hole; and a first inflow throttle hole arranged between the first inflow throttle hole and the outflow port and having a diameter reduced from the first inflow throttle hole. and a second inflow throttle hole through which liquid flows in from the inflow port, and the gas introduction pipe has one pipe end communicating with the first inflow throttle hole and is connected to the inflow path. The bubble generator according to claim 2, characterized in that:

本発明に係る請求項３では、第２流入絞り穴から第１流入絞り穴に噴射される液体は、第１流入絞り穴を流れることで、マイクロバブル及びウルトラファインバブルの混入、溶け込んだバブル水となる。マイクロバブル及びウルトラファインバブルの混入、溶け込んだバブル水を各液体導入穴から各液体流路に流入できる。 According to claim 3 of the present invention, the liquid jetted from the second inflow throttle hole to the first inflow throttle hole mixes microbubbles and ultra-fine bubbles and dissolves bubble water by flowing through the first inflow throttle hole. becomes. Bubble water in which microbubbles and ultra-fine bubbles are mixed and dissolved can flow into each liquid channel from each liquid introduction hole.

本発明に係る請求項４は、ノズル本体、及び前記ノズル本体に形成され、流入路から流入される液体を噴射するノズル穴を有する噴射ノズルに配置されるバブル発生器であって、前記ノズル本体に形成され、前記流入路及び前記ノズル穴に連通される液体絞り穴と、板状に形成される液体閉塞板、及び円錐渦巻き状に形成される液体ガイドコアを有する液体ガイドと、を備え、前記液体絞り穴は、前記流入路側から縮径しつつ延在される円錐穴に形成され、前記液体閉塞板は、前記液体閉塞板を貫通して、前記液体閉塞板の板表面及び板裏面に開口される複数の液体導入穴を有し、前記液体ガイドコアは、同一の渦巻き状に形成される前記液体導入穴と同数の渦巻き面を有し、前記液体ガイドコアの円錐底面を前記液体閉塞板の前記板表面に当接して、前記液体閉塞板と一体にされ、前記各渦巻き面は、前記液体ガイドコアの円錐側面に交差して、前記液体ガイドコアの前記円錐底面及び円錐上面の間に配置され、前記円錐底面から前記円錐上面に向けて縮径しつつ渦巻き状に形成され、前記円錐底面側の渦巻き面端を前記各液体導入穴内に突出して配置され、前記液体ガイドは、前記液体ガイドコアを前記流入路側から前記液体絞り穴に挿入し、及び前記液体閉塞板の板表面を前記流入路側から前記ノズル本体に当接して前記液体絞り穴を閉塞し、前記円錐側面及び前記円錐内周面の間に隙間を隔てて、前記液体ガイドコアを前記円錐上面から前記液体絞り穴内に挿入し、前記各渦巻き面及び前記液体絞り穴の円錐内周面の間に、渦巻き状の複数の液体流路を形成しつつ前記液体ガイドコアを前記液体絞り穴内に装着して、前記ノズル本体に配置され、前記各液体流路は、前記ノズル穴に開口され、前記各渦巻き面の前記渦巻き面端から前記各液体導入穴に開口され、及び前記各液体導入穴を通して前記流入路に連通されることを特徴とするバブル発生器である。 According to a fourth aspect of the present invention, there is provided a bubble generator arranged in an injection nozzle having a nozzle body and a nozzle hole formed in the nozzle body for injecting a liquid flowing in from an inflow passage, wherein the nozzle body and a liquid guide having a liquid throttle hole communicating with the inflow passage and the nozzle hole, a liquid blocking plate formed in a plate shape, and a liquid guide core formed in a conical spiral, The liquid throttle hole is formed in a conical hole that extends from the inflow path side while decreasing in diameter, and the liquid blockage plate penetrates through the liquid blockage plate to form a plate surface and a plate back surface of the liquid blockage plate. The liquid guide core has a plurality of open liquid introduction holes, the liquid guide core has the same number of spiral surfaces as the liquid introduction holes formed in the same spiral shape, and the conical bottom surface of the liquid guide core forms the liquid blockage. abutting the plate surface of a plate and integral with the liquid closure plate, each of the spiral surfaces intersecting the conical side surface of the liquid guide core and between the conical bottom surface and the conical top surface of the liquid guide core; is formed in a spiral while decreasing in diameter from the bottom of the cone toward the top of the cone, the end of the spiral surface on the side of the bottom of the cone protrudes into each of the liquid introduction holes, and the liquid guide is arranged in the A liquid guide core is inserted into the liquid throttle hole from the inflow path side, and a plate surface of the liquid blocking plate abuts against the nozzle main body from the inflow path side to block the liquid throttle hole, and the conical side surface and the conical The liquid guide core is inserted into the liquid throttle hole from the conical upper surface with a gap between the inner peripheral surfaces, and a plurality of spiral spirals are provided between the spiral surfaces and the conical inner peripheral surface of the liquid throttle hole. The liquid guide core is mounted in the liquid throttle hole while forming the liquid flow path, and is arranged in the nozzle main body, the liquid flow path is opened to the nozzle hole, and the spiral of each spiral surface The bubble generator is characterized in that the liquid introduction holes are opened from the surface end and communicated with the inflow path through the liquid introduction holes.

本発明に係る請求項４では、液体は、流入口から流入路に流入する。流入路を流れる液体は、液体閉塞板の板裏面に沿って各液体導入穴に流入される。流入路を流れる液体は、流入路から直接、各液体導入穴に流入される。各液体導入穴に流入した液体は、各渦巻き面の渦巻き面端から各液体流路に流入される。
これにより、請求項４では、液体を、各液体導入穴から各液体流路に連続して流入でき、常に、安定した流量（一定流量）の液体を各液体流路に流入できる。
請求項４では、液体は、各液体流路を流れることで、多量のマイクロ単位の気泡（マイクロバブル）及びナノ単位の気泡（ウルトラファインバブル）の混入、溶け込んだバブル水となる。マイクロバブル及びウルトラファインバブルの混入、溶け込んだバブル水は、渦巻き状の各液体流路によって渦流（旋回流）にされて、ノズル穴から噴射される。 According to claim 4 of the present invention, the liquid flows into the inflow channel from the inflow port. The liquid flowing through the inflow channel flows into each liquid introduction hole along the back surface of the liquid blocking plate. The liquid flowing through the inflow channel directly flows into each liquid introduction hole from the inflow channel. The liquid that has flowed into each liquid introduction hole flows into each liquid channel from the spiral surface end of each spiral surface.
Thus, in the fourth aspect, the liquid can be continuously introduced from each liquid introduction hole into each liquid channel, and a stable flow rate (constant flow rate) of liquid can always be introduced into each liquid channel.
According to claim 4, the liquid flows through each liquid channel to become bubble water in which a large amount of micro-unit bubbles (microbubbles) and nano-unit bubbles (ultra-fine bubbles) are mixed and dissolved. The bubble water mixed with and dissolved in microbubbles and ultra-fine bubbles is made into a swirling flow (swirling flow) by each spiral liquid flow path, and is jetted from a nozzle hole.

本発明は、多量のマイクロバブル及びウルトラファインバブルの混入、溶け込んだ液体を発生できる。 The present invention can generate a liquid in which a large amount of microbubbles and ultrafine bubbles are mixed and dissolved.

バブル発生装置を示す上方斜視図である。It is an upper perspective view which shows a bubble generator. バブル発生装置を示す下方斜視図である。It is a downward perspective view which shows a bubble generator. バブル発生装置を示す正面図である。It is a front view which shows a bubble generator. バブル発生装置を示す側面図である。It is a side view which shows a bubble generator. バブル発生装置を示す平面図（上面図）である。It is a top view (top view) which shows a bubble generator. バブル発生装置を示す底面図（下面図）である。It is a bottom view (bottom view) which shows a bubble generator. バブル発生装置（バブル発生器）を示す図であって、図３のＡ－Ａ断面図である。FIG. 4 is a view showing the bubble generator (bubble generator), and is a cross-sectional view taken along the line AA in FIG. 3; 図７のＣ部分拡大図である。FIG. 8 is an enlarged view of part C of FIG. 7; 図８の一部拡大図である。FIG. 9 is a partially enlarged view of FIG. 8; バブル発生装置（バブル発生器）を示す図であって、図４のＢ－Ｂ断面拡大図である。FIG. 5 is a view showing the bubble generator (bubble generator), and is an enlarged cross-sectional view taken along line BB of FIG. 4. FIG. 液体ガイド（液体閉塞板、液体ガイドコア）を示す正面上方斜視図である。FIG. 4 is a front upper perspective view showing a liquid guide (liquid blocking plate, liquid guide core); 液体ガイド（液体閉塞板、液体ガイドコア）を示す側面上方斜視図である。FIG. 3 is a side upper perspective view showing a liquid guide (liquid blocking plate, liquid guide core); 液体ガイド（液体閉塞板、液体ガイドコア）を示す平面図（上面図）であって、液体導入穴、及び液体ガイドコアの配置関係を示す図である。FIG. 4 is a plan view (top view) showing the liquid guide (liquid blocking plate, liquid guide core), showing the arrangement relationship between the liquid introduction hole and the liquid guide core. 液体ガイド（液体閉塞板、液体ガイドコア）を示す平面図（上面図）でって、液体ガイドコアの最大コア幅、各渦巻き面の一方の渦巻き面端の面端幅を示す図である。FIG. 3 is a plan view (top view) showing the liquid guide (liquid blocking plate, liquid guide core), showing the maximum core width of the liquid guide core and the surface edge width of one spiral surface end of each spiral surface. 液体ガイド（液体閉塞板、液体ガイドコア）を示す平面図（上面図）であって、各渦巻き面の配置関係を示す図である。FIG. 4 is a plan view (top view) showing the liquid guide (liquid blocking plate, liquid guide core), showing the arrangement relationship of each spiral surface. 液体ガイド（液体閉塞板、液体ガイドコア）を示す底面図（下面図）である。FIG. 4 is a bottom view (bottom view) showing a liquid guide (liquid blocking plate, liquid guide core). 液体ガイド（液体閉塞板、液体ガイドコア）を示す左側面図である。Fig. 2 is a left side view showing a liquid guide (liquid blocking plate, liquid guide core);

本発明に係るバブル発生装置（バブル発生器）について、図１乃至図１７を参照して説明する。 A bubble generator (bubble generator) according to the present invention will be described with reference to FIGS. 1 to 17. FIG.

図１乃至図１７において、バブル発生装置Ｘは、流れ筒体１（流れ円筒体）、噴射ノズルＹ、バブル発生器Ｚ、気体導入管２、及び逆止弁３を備える。 1 to 17, the bubble generator X includes a flow cylinder 1 (flow cylinder), an injection nozzle Y, a bubble generator Z, a gas introduction pipe 2, and a check valve 3.

流れ筒体１は、図１乃至図１７に示すように、流入筒本体５（流入円筒本体）、流出筒本体６（流出円筒本体）、連結筒本体７、流入路８、流入口９、流出路１０、流出口１１、気体導入穴１２（気体導入路）、及び継手管１５（ミニマルストレート）を有する。 1 to 17, the flow cylinder 1 includes an inflow cylinder body 5 (inflow cylinder body), an outflow cylinder body 6 (outflow cylinder body), a connecting cylinder body 7, an inflow passage 8, an inflow port 9, and an outflow cylinder body. It has a channel 10, an outlet port 11, a gas introduction hole 12 (gas introduction channel), and a joint pipe 15 (minimal straight).

流入筒本体５（流入円筒本体）は、円筒状（円筒体）に形成される。流入筒本体５は、図１乃至図１０に示すように、流入筒部１３、及び雄ネジ部１４を有する。 The inflow tube main body 5 (inflow cylindrical main body) is formed in a cylindrical shape (cylindrical body). The inflow tube main body 5 has an inflow tube portion 13 and a male screw portion 14 as shown in FIGS. 1 to 10 .

流入筒部１３（流入円筒部）は、図１乃至図４、及び図６乃至図９に示すように、円筒状（円筒体）に形成される。 The inflow tubular portion 13 (inflow cylindrical portion) is formed in a cylindrical shape (cylindrical body) as shown in FIGS. 1 to 4 and 6 to 9 .

雄ネジ部１４は、図７及び図８に示すように、流入筒部１３に形成される。雄ネジ部１４は、流入筒部１３（流入筒本体５、流れ筒体１）の筒中心線ａの方向Ａにおいて、流入筒部１３の一方の筒端１３Ａ側（一方の流入筒端側）に配置される。雄ネジ部１４は、流入筒部１３の外周面に形成される。 The male screw portion 14 is formed in the inflow tube portion 13 as shown in FIGS. 7 and 8 . The male threaded portion 14 is located on one cylinder end 13A side of the inflow cylinder portion 13 (one inflow cylinder end side) in the direction A of the cylinder center line a of the inflow cylinder portion 13 (inflow cylinder main body 5, flow cylinder body 1). placed in The male screw portion 14 is formed on the outer peripheral surface of the inflow tubular portion 13 .

流出筒本体６（流出円筒本体）は、合成樹脂等で円筒状（円筒体）に形成される。流出筒本体６は、図１乃至図５、及び図７乃至図１０に示すように、流出筒部１８、及びノズル閉塞部１９（ノズル本体）を有する。 The outflow tube main body 6 (outflow cylindrical main body) is formed in a cylindrical shape (cylindrical body) from synthetic resin or the like. The outflow tube main body 6 has an outflow tube portion 18 and a nozzle closing portion 19 (nozzle main body), as shown in FIGS. 1 to 5 and 7 to 10 .

流出筒部１８（流出円筒部）は、図１乃至図５、及び図７乃至図１０に示すように、合成樹脂等で円筒状（円筒体）に形成される。 As shown in FIGS. 1 to 5 and 7 to 10, the outflow tubular portion 18 (outflow cylindrical portion) is formed in a cylindrical shape (cylindrical body) from synthetic resin or the like.

ノズル閉塞部１９（ノズル閉塞板）は、合成樹脂等で円形状に形成される。ノズル閉塞部１９は、図７乃至図１０に示すように、流出筒部１８（流出筒本体６、流れ筒体１）の筒中心線ａの方向Ａにおいて、流出筒部１８の一方の筒端１８Ａ側（一方の流出筒端側）に配置される。ノズル閉塞部１９は、流出筒部１８の一方の筒端１８Ａ（一方の流出筒端）を閉塞して、流出筒部１８に固定される。ノズル閉塞部１９は、流出筒部１８と一体に形成される。ノズル閉塞部１９は、図７乃至図９に示すように、流出筒部１８（流出筒本体６）の径外方向（径方向）において、流出筒部１８の外周面から突出される。
ノズル閉塞部１９（ノズル本体）は、図７乃至図９に示すように、ノズル段差部２０を有する。ノズル段差部２０は、流出筒部１８の外周面から流出筒部１８の径外方向［流れ筒体１（流出筒部１８）の筒中心線aと直交する方向］に突出して形成される。ノズル段差部２０は、流出筒部１８（流出筒本体６）の周方向（円周方向）にわたって配置される。 The nozzle blocking portion 19 (nozzle blocking plate) is made of synthetic resin or the like and formed in a circular shape. As shown in FIGS. 7 to 10, the nozzle closing portion 19 is arranged at one end of the outflow cylinder portion 18 (outflow cylinder main body 6, flow cylinder body 1) in the direction A of the center line a of the outflow cylinder portion 18. It is arranged on the 18A side (one outflow cylinder end side). The nozzle blocking part 19 is fixed to the outflow cylinder part 18 by closing one cylinder end 18A (one outflow cylinder end) of the outflow cylinder part 18 . The nozzle closing portion 19 is formed integrally with the outflow cylinder portion 18 . As shown in FIGS. 7 to 9, the nozzle closing portion 19 protrudes from the outer peripheral surface of the outflow cylinder portion 18 (outflow cylinder main body 6) in the radially outward direction (radial direction).
The nozzle closing portion 19 (nozzle main body) has a nozzle stepped portion 20 as shown in FIGS. 7 to 9 . The nozzle stepped portion 20 is formed so as to protrude from the outer peripheral surface of the outflow cylinder portion 18 in the radially outer direction of the outflow cylinder portion 18 [the direction orthogonal to the cylinder center line a of the flow cylinder body 1 (outflow cylinder portion 18)]. The nozzle stepped portion 20 is arranged along the circumferential direction (circumferential direction) of the outflow tube portion 18 (outflow tube main body 6).

連結筒本体７（連結円筒本体）は、円筒状（円筒体）に形成される。連結筒本体７は、図１乃至図１０に示すように、連結筒部２２、筒閉塞板２３及び連結穴２４を有する。 The connecting tube main body 7 (connecting cylindrical main body) is formed in a cylindrical shape (cylindrical body). The connecting tube main body 7 has a connecting tube portion 22, a tube closing plate 23 and a connecting hole 24, as shown in FIGS.

連結筒部２２（連結円筒部）は、図１乃至図１０に示すように、筒状（筒体）に形成される。連結筒部２２は、図８及び図９に示すように、雌ネジ部２５を有する。雌ネジ部２５は、連結筒本体７（流れ筒体１）の筒中心線aの方向Ａにおいて、連結筒部２２の他方の筒端２２Ｂ側（他方の連結筒端）に配置される。連結筒部２２の内周面に形成される。 The connecting tube portion 22 (connecting cylindrical portion) is formed in a tubular shape (cylindrical body) as shown in FIGS. 1 to 10 . The connecting tube portion 22 has a female screw portion 25 as shown in FIGS. 8 and 9 . The female threaded portion 25 is arranged on the other tube end 22B side (the other coupling tube end) of the coupling tube portion 22 in the direction A of the tube center line a of the coupling tube main body 7 (flow tube 1). It is formed on the inner peripheral surface of the connecting tube portion 22 .

筒閉塞板２３は、図１乃至図９に示すように、連結筒部２２（連結筒本体７）の筒中心線aの方向Ａにおいて、連結筒部２２の一方の筒端２２Ａ（一方の連結筒端）を閉塞して、連結筒部２２に固定される。筒閉塞板２３は、連結筒部２２と一体に形成される。 As shown in FIGS. 1 to 9, the tube closing plate 23 is located at one tube end 22A (one coupling tube) of the coupling tube section 22 (one coupling tube main body 7) in the direction A of the tube center line a of the coupling tube section 22 (coupling tube main body 7). (cylinder end) is closed and fixed to the connecting cylinder portion 22 . The tube closing plate 23 is formed integrally with the connecting tube portion 22 .

連結穴２４は、図１、図５、図８及び図９に示すように、筒閉塞板２３に形成される。連結穴２４は、円形穴に形成され、連結筒部２２と同心に配置される。連結穴２４は、連結筒部２２の筒中心線ａの方向Ａにおいて、筒閉塞板２３を貫通して、連結筒部２２内に開口される。 The connecting hole 24 is formed in the tube closing plate 23 as shown in FIGS. The connecting hole 24 is formed in a circular hole and arranged concentrically with the connecting tubular portion 22 . The connecting hole 24 passes through the tube closing plate 23 in the direction A of the tube center line a of the connecting tube portion 22 and opens into the connecting tube portion 22 .

流入路８（流入穴）は、図２、及び図６乃至図９に示すように、流入筒本体５（流入筒部１３）に形成される。流入路８は、例えば、円形穴に形成される。流入路８は、流入筒部１３（流入筒本体５）の筒中心線ａの方向Ａにおいて、流入筒部１３を貫通して、流入筒部１３の各筒端１３Ａ，１３Ｂに開口される。 The inflow path 8 (inflow hole) is formed in the inflow tube main body 5 (inflow tube portion 13), as shown in FIGS. 2 and 6 to 9 . The inflow channel 8 is formed, for example, as a circular hole. The inflow passage 8 passes through the inflow tubular portion 13 in the direction A of the cylinder center line a of the inflow tubular portion 13 (inflow tubular main body 5 ) and is opened at the respective tubular ends 13A and 13B of the inflow tubular portion 13 .

流入口９は、図２、図６及び図７示すように、流入筒部１３（流入筒本体５）に形成される。流入口９は、流入筒部１３（流入路８）と同心に配置される。流入口９は、流入筒部１３の他方の筒端１３Ｂ（他方の流入筒端）に開口し、及び流入路８に開口する。流入口９は、流入路８に連通される。 The inflow port 9 is formed in the inflow cylinder part 13 (inflow cylinder main body 5), as shown in FIGS. The inflow port 9 is arranged concentrically with the inflow tubular portion 13 (inflow path 8). The inflow port 9 opens to the other tubular end 13B (the other inflow tubular end) of the inflow tubular portion 13 and to the inflow passage 8 . The inflow port 9 communicates with the inflow path 8 .

流入路８は、図２、図６乃至図９に示すように、気液流入穴２６、第１流入絞り穴２７、第２流入絞り穴２８及び流入開放穴２９を有する。 The inflow path 8 has a gas-liquid inflow hole 26, a first inflow throttle hole 27, a second inflow throttle hole 28, and an inflow open hole 29, as shown in FIGS.

気液流入穴２６は、図７乃至図９に示すように、流入筒部１３（流入筒本体５）に形成される。気液流入穴２６は、流入筒部１３と同心に配置される。気液流入穴２６は、流入筒部１３の筒中心線ａの方向Ａにおいて、流入筒部１３の一方の筒端１３Ａ及び流入口９の間に配置される。気液流入穴２６は、流入筒部１３の一方の筒端１３Ａに開口される。気液流入穴２６は、流入筒部１３（流れ筒体１）の筒中心線ａの方向Ａにおいて、流入筒部１３の一方の筒端１３Ａから流入口９（流入筒部１３の他方の筒端１３Ｂ）に向けて延在される。
気液流入穴２６は、流入筒部１３の筒中心線ａの方向Ａに穴長さＬＡを有する。気液流入穴２６の穴長さＬＡは、５０ｍｍ（又は５０ｍｍ以上）である（ＬＡ≧５０ｍｍ）。気液流入穴２６は、円形状に形成され、穴直径Ｄ１（混合穴直径）の円形穴である。 The gas-liquid inflow hole 26 is formed in the inflow tube portion 13 (inflow tube main body 5), as shown in FIGS. 7 to 9 . The gas-liquid inflow hole 26 is arranged concentrically with the inflow tubular portion 13 . The gas-liquid inflow hole 26 is arranged between one cylinder end 13A of the inflow cylinder part 13 and the inflow port 9 in the direction A of the cylinder center line a of the inflow cylinder part 13 . The gas-liquid inflow hole 26 is opened at one cylinder end 13A of the inflow cylinder part 13 . The gas-liquid inflow hole 26 extends from one end 13A of the inflow cylinder 13 to the inflow port 9 (the other cylinder of the inflow cylinder 13) in the direction A of the cylinder center line a of the inflow cylinder 13 (flow cylinder 1). end 13B).
The gas-liquid inflow hole 26 has a hole length LA in the direction A of the tube center line a of the inflow tube portion 13 . The hole length LA of the gas-liquid inflow hole 26 is 50 mm (or 50 mm or more) (LA≧50 mm). The gas-liquid inflow hole 26 is a circular hole formed in a circular shape and having a hole diameter D1 (mixing hole diameter).

第１流入絞り穴２７は、図７に示すように、流入筒部１３（流入筒本体５）に形成される。第１流入絞り穴２７は、気液流入穴２６（流入筒部１３）と同心に配置される。第１流入絞り穴２７は、流入筒部１３の筒中心線ａの方向Ａにおいて、気液流入穴２６及び流入口９の間に配置される。第１流入絞り穴２７は、気液流入穴２６から縮径されて、気液流入穴２６に連通（開口）される。
第１流入絞り穴２７は、流入筒部１３の筒中心線ａの方向Ａにおいて、気液流入穴２６から流入口９（流入筒部１３の他方の筒端１３Ｂ）に向けて延在される。
第１流入絞り穴２７は、円形状に形成され、穴直径Ｄ２（第１絞り穴直径）の円形穴である。第１流れ絞り穴２７の穴直径Ｄ２は、気液流入穴２６の穴直径Ｄ１より小径である（Ｄ２＜Ｄ１）。 The first inflow throttle hole 27 is formed in the inflow tube portion 13 (inflow tube main body 5), as shown in FIG. The first inflow throttle hole 27 is arranged concentrically with the gas-liquid inflow hole 26 (inflow cylindrical portion 13). The first inflow throttle hole 27 is arranged between the gas/liquid inflow hole 26 and the inflow port 9 in the direction A of the cylinder center line a of the inflow cylinder portion 13 . The first inflow throttle hole 27 is reduced in diameter from the gas/liquid inflow hole 26 and communicates (opens) with the gas/liquid inflow hole 26 .
The first inflow throttle hole 27 extends from the gas-liquid inflow hole 26 toward the inflow port 9 (the other cylindrical end 13B of the inflow cylindrical portion 13) in the direction A of the cylinder center line a of the inflow cylindrical portion 13. .
The first inflow throttle hole 27 is a circular hole formed in a circular shape and having a hole diameter D2 (first throttle hole diameter). The hole diameter D2 of the first flow throttle hole 27 is smaller than the hole diameter D1 of the gas-liquid inflow hole 26 (D2<D1).

第２流入絞り穴２８は、図６及び図７に示すように、流入筒部１３（流入筒本体５）に形成される。第２流入絞り穴２８は、気液流入穴２６及び第１流入絞り穴２７（流入筒部１３）と同心に配置される。第２流入絞り穴２８は、流入筒部１３の筒中心線ａの方向Ａにおいて、第１流入絞り穴２７及び流入口９（流入筒部１３の他方の筒端１３Ｂ）の間に配置される。第２流入絞り穴２８は、第１流入絞り穴２７から縮径されて、第１流入絞り穴２７に連通（開口）される。第２流入絞り穴２８は、液体（水）が流入口９から流入される。
第２流入絞り穴２８は、流入筒部１３の筒中心線ａの方向Ａにおいて、第１流入絞り穴２７から流入口９（流入筒部１３の他方の筒端１３Ｂ）に向けて延在される。
第２流入絞り穴２８は、円形状に形成され、穴直径Ｄ３（第２絞り穴直径）の円形穴である。第２流入絞り穴２８の穴直径Ｄ３は、第１流入絞り穴２８の穴直径Ｄ２より小径である（Ｄ３＜Ｄ２）。 As shown in FIGS. 6 and 7, the second inflow throttle hole 28 is formed in the inflow tube portion 13 (inflow tube main body 5). The second inflow throttle hole 28 is arranged concentrically with the gas-liquid inflow hole 26 and the first inflow throttle hole 27 (inflow cylindrical portion 13). The second inflow throttle hole 28 is arranged between the first inflow throttle hole 27 and the inflow port 9 (the other tubular end 13B of the inflow tubular portion 13) in the direction A of the tube center line a of the inflow tubular portion 13. . The second inflow throttle hole 28 is reduced in diameter from the first inflow throttle hole 27 and communicates (opens) with the first inflow throttle hole 27 . Liquid (water) flows into the second inflow throttle hole 28 from the inflow port 9 .
The second inflow throttle hole 28 extends from the first inflow throttle hole 27 toward the inflow port 9 (the other tubular end 13B of the inflow tubular portion 13) in the direction A of the cylinder center line a of the inflow tubular portion 13. be.
The second inflow throttle hole 28 is a circular hole formed in a circular shape and having a hole diameter D3 (second throttle hole diameter). The hole diameter D3 of the second inflow throttle hole 28 is smaller than the hole diameter D2 of the first inflow throttle hole 28 (D3<D2).

流入開放穴２９は、図２、図６及び図７に示すように、流入筒部１３（流入筒本体５）に形成される。流入開放穴２９は、第２流入絞り穴２８（流入筒部１３）と同心に配置される。流入開放穴２９は、流入筒部１３の筒中心線ａの方向Ａにおいて、第２流入絞り穴２８及び流入口９（流入筒部１３の他方の筒端１３Ｂ）の間に配置される。流入開放穴２９は、第２流入絞り穴２８から拡径されて、流入口９及び第２流入絞り穴２８に連通（開口）される。
流入開放穴２９は、流入筒部１３の筒中心線ａの方向Ａにおいて、第１流入絞り穴２８から流入筒部１３の他方の筒端１３Ｂ（流入口９）まで延在されて、流入筒部１３の他方の筒端１３Ｂに開口される。 The inflow open hole 29 is formed in the inflow tube portion 13 (inflow tube main body 5), as shown in FIGS. The inflow open hole 29 is arranged concentrically with the second inflow throttle hole 28 (inflow cylindrical portion 13). The inflow open hole 29 is arranged between the second inflow restrictor hole 28 and the inflow port 9 (the other cylindrical end 13B of the inflow cylindrical portion 13) in the direction A of the cylinder center line a of the inflow cylindrical portion 13. As shown in FIG. The inflow open hole 29 is expanded in diameter from the second inflow throttle hole 28 and communicates (opens) with the inflow port 9 and the second inflow throttle hole 28 .
The inflow open hole 29 extends from the first inflow throttle hole 28 to the other cylindrical end 13B (inflow port 9) of the inflow cylindrical portion 13 in the direction A of the cylinder center line a of the inflow cylindrical portion 13. The other cylindrical end 13B of the portion 13 is opened.

流出路１０（流出穴）は、図１、図５、図７乃至図９に示すように、流出筒部１８（流出筒本体６）に形成される。流出路１０は、例えば、円形穴に形成される。流出路１０は、流出筒部１８（流出筒本体６）の筒中心線aの方向Ａにおいて、流出筒部１８の一方の筒端１８Ａ側（ノズル閉塞部１９）及び他方の筒端１８Ｂの間に配置される。流出路１０は、流出筒部１８（流れ筒体１）の筒中心線ａの方向Ａにおいて、ノズル閉塞部１９から流出筒部１８の他方の筒端１８Ｂまで延されて、流出筒部１８の他方の筒端１８Ｂに開口される。
流出路１０（流出穴）は、流出筒部１８の筒中心線ａの方向Ａにおいて、ノズル閉塞部１９（流出筒部１８の一方の筒端１８Ａ側）から流出筒部１８の他方の筒端１８Ｂに向けて拡径しつつ延在されて、流出筒部１８の他方の筒端１８Ｂに開口される。 The outflow path 10 (outflow hole) is formed in the outflow tube portion 18 (outflow tube main body 6), as shown in FIGS. Outflow channel 10 is formed, for example, as a circular hole. The outflow passage 10 extends between one end 18A (nozzle closing portion 19) and the other end 18B of the outflow cylinder portion 18 (outflow cylinder main body 6) in the direction A of the cylinder center line a of the outflow cylinder portion 18 (outflow cylinder main body 6). placed in The outflow passage 10 extends from the nozzle closing portion 19 to the other end 18B of the outflow cylinder portion 18 in the direction A of the cylinder center line a of the outflow cylinder portion 18 (flow cylinder 1). It is opened at the other cylindrical end 18B.
The outflow passage 10 (outflow hole) extends from the nozzle closing portion 19 (one end 18A side of the outflow cylinder portion 18) to the other end of the outflow cylinder portion 18 in the direction A of the cylinder center line a of the outflow cylinder portion 18. It extends toward 18B while increasing in diameter, and opens at the other tubular end 18B of the outflow tubular portion 18 .

流出口１１は、図１、図５及び図７に示すように、流出筒部１８（流出筒本体６）に形成される。流出口１１は、流出筒部１８（流出路１０）と同心に配置される。流出口１１は、流出筒部１８の他方の筒端１８Ｂ（他方の流出筒端）に開口し、及び流出路１０に開口する。流出口１１は、流出路１０に連通される。 The outflow port 11 is formed in the outflow tube portion 18 (outflow tube main body 6), as shown in FIGS. The outflow port 11 is arranged concentrically with the outflow tubular portion 18 (outflow path 10). The outflow port 11 opens to the other tubular end 18</b>B (the other outflow tubular end) of the outflow tubular portion 18 and to the outflow path 10 . The outflow port 11 communicates with the outflow path 10 .

気体導入穴１２（気体導入路）は、図３及び図７に示すように、流入筒部１３（流入筒本体５）に形成される。気体導入穴１２は、流入路８に連通される。
気体導入穴１２は、流入筒部１３の筒中心線ａの方向Ａにおいて、第２流入絞り穴２８に隣接して、第１流入絞り穴２７の第２流入絞り穴２８側に配置される。
気体導入穴１２は、流入筒部１３の筒中心線ａと直交する方向（流入筒部１３の径方向）において、流入筒部１３を貫通して、第１流入絞り穴２７及び流入筒部１３の外周面に開口される。気体導入穴１２は、第１流入絞り穴２７に連通される。 As shown in FIGS. 3 and 7, the gas introduction hole 12 (gas introduction path) is formed in the inflow tube portion 13 (inflow tube main body 5). The gas introduction hole 12 communicates with the inflow path 8 .
The gas introduction hole 12 is arranged adjacent to the second inflow throttle hole 28 on the second inflow throttle hole 28 side of the first inflow throttle hole 27 in the direction A of the cylinder center line a of the inflow cylinder portion 13 .
The gas introduction hole 12 penetrates the inflow tubular portion 13 in a direction orthogonal to the tube center line a of the inflow tubular portion 13 (radial direction of the inflow tubular portion 13) to form the first inflow throttle hole 27 and the inflow tubular portion 13. is opened on the outer peripheral surface of the The gas introduction hole 12 communicates with the first inflow throttle hole 27 .

継手管１５は、図４及び図７に示すように、気体導入穴１２と同心に配置される。継手管１５は、一方の継手管端側を気体導入穴１２に気密に挿入して、流入筒部１３（流れ筒体１）に取付けられる。継手管１５は、一方の継手管端側を気体導入穴１２に螺入（螺着）して、流入筒部１３に配置される。継手管１５は、他方の継手管端側を流入筒部１３（流れ筒体１）の外周面から突出して配置される。
これにより、継手管１５の一方の継手管端は、気体導入穴１２（気体導入絞り穴）を通して、流入路８（第１流入絞り穴２７）に連通される。 The joint pipe 15 is arranged concentrically with the gas introduction hole 12, as shown in FIGS. The joint pipe 15 is attached to the inflow tubular portion 13 (flow tubular body 1) by airtightly inserting one joint pipe end side into the gas introduction hole 12 . The joint pipe 15 is disposed in the inflow tubular portion 13 with one joint pipe end side screwed into the gas introduction hole 12 . The joint pipe 15 is arranged so that the other joint pipe end side protrudes from the outer peripheral surface of the inflow tubular portion 13 (flow tubular body 1).
As a result, one joint pipe end of the joint pipe 15 is communicated with the inflow passage 8 (first inflow throttle hole 27) through the gas introduction hole 12 (gas introduction throttle hole).

流れ筒体１は、図１乃至図１０に示すように、連結筒本体７によって、流入筒本体５及び流出筒本体６を連結して構成される。 As shown in FIGS. 1 to 10 , the flow tube 1 is configured by connecting an inflow tube main body 5 and an outflow tube main body 6 with a connecting tube main body 7 .

流れ筒体１において、流入筒本体５（流入筒部１３）は、図８及び図９に示すように、流入筒部１３の一方の筒端１３Ａを流出筒部１８の一方の筒端１８Ａ（ノズル閉塞部１９）に対峙（対向）して、流出筒本体６（流出筒部１８）と同心に配置される。
流出筒本体６（流出筒部１８）は、図８及び図９に示すように、流出筒部１８の一方の筒端１８Ａ（ノズル閉塞部１９）を流入筒部１３の一方の筒端１３Ａに対峙（対向）して、流入筒本体５（流入筒部１３）と同心に配置される。
これにより、流入筒本体５（流入筒部１３）及び流出筒本体６（流出筒部１８）は、図１乃至図４、及び図７に示すように、流れ筒体１の筒中心線ａの方向Ａに並列して、同心に配置される。 In the flow cylinder 1, the inflow cylinder main body 5 (inflow cylinder part 13), as shown in FIGS. It is arranged concentrically with the outflow cylinder main body 6 (outflow cylinder part 18) so as to face (oppose) the nozzle blocking part 19).
As shown in FIGS. 8 and 9, the outflow cylinder main body 6 (outflow cylinder portion 18) has one cylinder end 18A (nozzle blocking portion 19) of the outflow cylinder portion 18 connected to one cylinder end 13A of the inflow cylinder portion 13. It is arranged concentrically with the inflow tube main body 5 (inflow tube portion 13) so as to face each other (oppose).
As a result, the inflow tube main body 5 (inflow tube portion 13) and the outflow tube main body 6 (outflow tube portion 18) are aligned along the tube center line a of the flow tube body 1, as shown in FIGS. Concentrically arranged parallel to direction A.

流れ筒体１において、連結筒本体７（連結筒部２２）は、図７乃至図９に示すように、連結筒部２２の他方の筒端２２Ｂを流入口９（流入筒部１３の他方の筒端１３Ｂ）に向けて配置され、連結穴２４内に流出筒部１８を挿入して、流出筒部１８に外嵌される。連結筒本体７は、流出筒部１８の他方の筒端１８Ｂから流出筒部１８を連結穴２４に挿入し、筒閉塞板２３をノズル段差部２０（ノズル閉塞部１９）に当接して、流出筒部１８の一方の筒端１８Ａ側（ノズル閉塞部１９）を連結筒部２２内に配置する。流出筒部１８（流出筒本体６）は、流出筒部１８の他方の筒端１８Ｂから連結穴２４に挿入されて、ノズル閉塞部１９（一方の筒端１８Ａ側）を連結筒部２２内に配置する。流出筒部１８は、図７乃至図９に示すように、連結筒部２２の他方の筒端２２Ｂからノズル閉塞部１９（ノズル本体）を連結筒部２２内に挿入する。流出筒部１８は、ノズル閉塞部１９（ノズル本体）の外周面を連結筒部２２の内周面に密接しつつ、ノズル閉塞部１９（ノズル本体）を連結筒部２２内に収納する。流出筒部１８の他方の筒端１８Ｂ側は、図１乃至図４、及び図７に示すように、流出筒部１８（流れ筒体１）の筒中心線ａの方向Ａにおいて、連結筒本体７の連結穴２４から突出して延在される。 In the flow cylinder 1, the connecting cylinder main body 7 (connecting cylinder portion 22) has the other cylinder end 22B of the connecting cylinder portion 22 connected to the inflow port 9 (the other end of the inflow cylinder portion 13), as shown in FIGS. The outflow cylinder portion 18 is inserted into the connecting hole 24 and fitted on the outflow cylinder portion 18 . The connecting tube main body 7 inserts the outflow tube part 18 from the other tube end 18B of the outflow tube part 18 into the connecting hole 24, and the tube blocking plate 23 is brought into contact with the nozzle stepped part 20 (nozzle blocking part 19). One cylindrical end 18A side (nozzle blocking portion 19) of the cylindrical portion 18 is arranged inside the connecting cylindrical portion 22. As shown in FIG. The outflow cylinder portion 18 (outflow cylinder main body 6) is inserted into the connecting hole 24 from the other cylinder end 18B of the outflow cylinder portion 18, and the nozzle closing portion 19 (one cylinder end 18A side) is inserted into the connecting cylinder portion 22. Deploy. As shown in FIGS. 7 to 9, the outflow tube portion 18 inserts the nozzle closing portion 19 (nozzle main body) into the connection tube portion 22 from the other tube end 22B of the connection tube portion 22 . The outflow tube portion 18 accommodates the nozzle closing portion 19 (nozzle body) in the connecting tube portion 22 while keeping the outer peripheral surface of the nozzle closing portion 19 (nozzle body) in close contact with the inner peripheral surface of the connecting tube portion 22 . The other tube end 18B side of the outflow tube portion 18 is, as shown in FIGS. It protrudes from the connection hole 24 of 7 and extends.

流れ筒体１において、連結筒本体７（連結筒部２２）は、図７乃至図９に示すように、連結筒部２２の他方の筒端２２Ｂから流入筒部１３の一方の筒端１３Ａ側を連結筒部２２内に挿入して、流入筒部１３（流入筒本体５）に外嵌される。流入筒部１３（流入筒本体５）は、流入筒部１３の一方の筒端１３Ａから連結筒部２２内に挿入されて、一方の筒端１３Ａ側を連結筒部内に配置する。流入筒部１３の他方の筒端１３Ｂ側は、図１乃至図４、及び図７に示すように、流出筒部１８（流れ筒体１）の筒中心線ａの方向Ａにおいて、連結筒部２２の他方の筒端２２Ｂから突出して延在される。
連結筒本体７（連結筒部２２）は、図７乃至図９に示すように、雌ネジ部２５を流入筒部１３の雄ネジ部１４に螺着して、流入筒部１３の一方の筒端１３Ａ側に取付けられる。 In the flow cylinder 1, the connecting cylinder main body 7 (connecting cylinder part 22) extends from the other cylinder end 22B of the connecting cylinder part 22 to the one cylinder end 13A of the inflow cylinder part 13, as shown in FIGS. is inserted into the connecting tube portion 22 and fitted to the inflow tube portion 13 (inflow tube main body 5). The inflow cylinder part 13 (inflow cylinder main body 5) is inserted into the connection cylinder part 22 from one cylinder end 13A of the inflow cylinder part 13, and the one cylinder end 13A side is arranged in the connection cylinder part. As shown in FIGS. 1 to 4 and 7, the other tube end 13B side of the inflow tube part 13 is located in the direction A of the tube center line a of the outflow tube part 18 (flow tube body 1). 22 is projected and extended from the other cylindrical end 22B.
As shown in FIGS. 7 to 9, the connecting tube main body 7 (connecting tube portion 22) has a female threaded portion 25 screwed to the male threaded portion 14 of the inflow tube portion 13, and is connected to one tube of the inflow tube portion 13. It is attached to the end 13A side.

流れ筒体１において、連結筒本体７（連結筒部２２）と、流出筒本体６（流出筒部１８）及び流入筒本体５（流入筒部１３）は、図８及び図９に示すように、複数のシールリング３１，３２によって密封（密閉）される。各シールリング３１，３２は、合成ゴム、合成樹脂等の弾性材料で円環状に形成される。各シールリング３１，３２は、流れ筒体１の筒中心線ａの方向Ａにおいて、各シールリング３１，３２の間に間隔を隔てて、連結筒部２２の一方の筒端２２Ａ側の内周面及びノズル閉塞部１９（流出筒部１８）の外周面の間と、連結筒部２２の他方の筒端２２Ｂ側の内周面及び流入筒部１３の一方の筒端１３Ａ側の外周面の間に配置される。 In the flow cylinder 1, the connecting cylinder main body 7 (connecting cylinder portion 22), the outflow cylinder main body 6 (outflow cylinder portion 18), and the inflow cylinder main body 5 (inflow cylinder portion 13) are arranged as shown in FIGS. , are sealed (sealed) by a plurality of seal rings 31 and 32 . Each seal ring 31, 32 is formed in an annular shape with an elastic material such as synthetic rubber or synthetic resin. The seal rings 31 and 32 are spaced apart from each other in the direction A of the tube center line a of the flow tube 1 so as to form an inner periphery of the connecting tube portion 22 on one tube end 22A side. between the surface and the outer peripheral surface of the nozzle blocking portion 19 (outflow tubular portion 18), and between the inner peripheral surface on the other tubular end 22B side of the connecting tubular portion 22 and the outer peripheral surface on the one tubular end 13A side of the inflow tubular portion 13. placed in between.

流れ筒体１において、連結筒本体７（連結筒部２２）は、図８及び図９に示すように、連結筒部２２の内周面及びノズル閉塞部１９（ノズル本体）の外周面の間にシールリング３１を配置して、流出筒部１８に外嵌される。シールリング３１は、ノズル閉塞部１９に外嵌されて、連結筒部２２の内周面及びノズル閉塞部１９の外周面に密接される。
流れ筒体１において、連結筒本体７（連結筒部２２）は、図８及び図９に示すように、連結筒部２２の内周面及び流入筒部１３（流入筒部１３の一方の筒端１３Ａ側）の外周面の間にシールリング３２を配置して、流入筒部１３の一方の筒端１３Ａ側に外嵌される。シールリング３２は、流入筒部１３の一方の筒端１３Ａ側に外嵌されて、連結筒部２２の内周面及び流入筒部１３（流入筒部１３の一方の筒端１３Ａ側）の外周面に密接される。
これにより、流れ筒体１内（流入路８、流出路１０）は、各シールリング３１，３２によって密封（密閉）される。
連結筒本体７（連結筒部２２）と流出筒本体６（流出筒部１８）、連結筒本体７（連結筒部２２）と流入筒本体５（流入筒部１３）は、図８及び図９に示すように、各シールリング３１，３２によって密封（密閉）され、流入筒本体５及び流出筒本体６は、連結筒本体７によって連結される。 In the flow cylinder 1, the connecting cylinder main body 7 (connecting cylinder part 22) is located between the inner peripheral surface of the connecting cylinder part 22 and the outer peripheral surface of the nozzle closing part 19 (nozzle body), as shown in FIGS. A seal ring 31 is placed on the outer surface of the outflow cylinder portion 18 . The seal ring 31 is fitted onto the nozzle closing portion 19 and brought into close contact with the inner peripheral surface of the connecting tube portion 22 and the outer peripheral surface of the nozzle closing portion 19 .
In the flow cylinder 1, the connecting cylinder main body 7 (connecting cylinder part 22), as shown in FIGS. A seal ring 32 is arranged between the outer peripheral surfaces of the ends 13A) and is fitted onto one cylindrical end 13A side of the inflow cylindrical portion 13 . The seal ring 32 is externally fitted on one cylindrical end 13A side of the inflow cylindrical portion 13 to seal the inner peripheral surface of the connecting cylindrical portion 22 and the outer periphery of the inflow cylindrical portion 13 (one cylindrical end 13A side of the inflow cylindrical portion 13). close to the surface.
As a result, the inside of the flow cylinder 1 (the inflow path 8 and the outflow path 10) is sealed (sealed) by the seal rings 31 and 32. As shown in FIG.
The connecting cylinder main body 7 (connecting cylinder portion 22) and the outflow cylinder main body 6 (outflow cylinder portion 18), the connecting cylinder main body 7 (connecting cylinder portion 22) and the inflow cylinder main body 5 (inflow cylinder portion 13) are shown in FIGS. , the inflow tube main body 5 and the outflow tube main body 6 are connected by the connecting tube main body 7, which is sealed (sealed) by the respective seal rings 31 and 32. As shown in FIG.

噴射ノズルＹは、図７乃至図１０に示すように、流入路８（気液流入穴２６）及び流出路１０の間の流れ筒体１（流出筒本体６、流出筒部１８）に配置される。
噴射ノズルＹは、図７乃至図１０に示すように、ノズル本体１９、及びノズル穴３５（絞り穴）を有する。 As shown in FIGS. 7 to 10, the injection nozzle Y is arranged in the flow tube 1 (outflow tube main body 6, outflow tube portion 18) between the inflow path 8 (gas-liquid inflow hole 26) and the outflow path 10. be.
The injection nozzle Y, as shown in FIGS. 7 to 10, has a nozzle body 19 and a nozzle hole 35 (throttle hole).

ノズル本体１９は、図７乃至図９に示すように、流入路８及び流出路１０の間の流れ筒体１内に配置される。ノズル本体１９は、ノズル閉塞部１９であって、流出筒部１８の一方の筒端１８Ａを閉塞する。ノズル本体１９は、ノズル閉塞部で構成される。ノズル本体１９は、ノズル本体１９の外周面を連結筒部２２の内周面に密接して、流入路８及び流出路１０の間の流れ筒体１内に配置される。
ノズル本体１９（ノズル閉塞部）は、図８及び図９に示すように、流入路８（気液流入穴２６）に対峙（対向）するノズル平面３６を有する。ノズル平面３６は、円形状（円形平面）に形成されて、気液流入穴２６に対峙（対向）して配置される。ノズル平面３６は、流出筒部１８（流れ筒体１）の筒中心線aと直交して形成（配置）される。ノズル平面３６は、流出筒部１８（流れ筒体１、流出筒本体６）の周方向（円周方向）にわたって形成される。
これにより、ノズル本体１９（ノズル平面３６）は、図７乃至図１０に示すように、流れ筒体１内を流入路８及び流出路１０に区画して、流入路８を流出路１０から閉塞（遮断）する。 The nozzle body 19 is arranged in the flow tube 1 between the inlet channel 8 and the outlet channel 10, as shown in FIGS. 7-9. The nozzle main body 19 is a nozzle closing portion 19 and closes one cylinder end 18A of the outflow cylinder portion 18 . The nozzle body 19 is composed of a nozzle closing portion. The nozzle body 19 is arranged in the flow tube 1 between the inflow path 8 and the outflow path 10 with the outer peripheral surface of the nozzle body 19 in close contact with the inner peripheral surface of the connecting tube portion 22 .
As shown in FIGS. 8 and 9, the nozzle main body 19 (nozzle closing portion) has a nozzle plane 36 that faces (opposes) the inflow path 8 (gas-liquid inflow hole 26). The nozzle plane 36 is formed in a circular shape (circular plane) and arranged to face (oppose) the gas-liquid inflow hole 26 . The nozzle plane 36 is formed (arranged) perpendicular to the cylinder center line a of the outflow cylinder part 18 (flow cylinder 1). The nozzle plane 36 is formed along the circumferential direction (circumferential direction) of the outflow cylinder portion 18 (flow cylinder 1, outflow cylinder main body 6).
7 to 10, the nozzle body 19 (nozzle plane 36) partitions the interior of the flow tube 1 into an inflow passage 8 and an outflow passage 10, and closes the inflow passage 8 from the outflow passage 10. (Cut off.

ノズル穴３５は、図７乃至図９に示すように、ノズル本体１９（ノズル閉塞部）に形成される。ノズル穴３５は、流出路１０（流出筒部１８、流入路８）と同心に配置される。ノズル穴３５は、流出筒部１８（流れ筒体１）の筒中心線ａの方向Ａに延在して、流出路１０（流出穴）に開口（連通）される。ノズル穴３５は、流出筒部１８（流れ筒体１）の筒中心線ａの方向Ａにおいて、流出路１０から縮径されて、流入路８側（気液流入穴２６側）に延在される。ノズル穴３５は、円形状に形成され、穴直径ｄ１（ノズル穴直径）の円形穴に形成される。ノズル穴３５の穴直径ｄ１は、気液流入穴２６の穴直径Ｄ１より小径である（ｄ１＜Ｄ１）。 The nozzle hole 35 is formed in the nozzle main body 19 (nozzle closing portion), as shown in FIGS. The nozzle hole 35 is arranged concentrically with the outflow path 10 (the outflow tubular portion 18, the inflow path 8). The nozzle hole 35 extends in the direction A of the tube center line a of the outflow tube portion 18 (flow tube 1) and opens (communicates) with the outflow path 10 (outflow hole). The nozzle hole 35 is reduced in diameter from the outflow passage 10 in the direction A of the cylinder center line a of the outflow cylinder portion 18 (flow cylinder 1) and extends toward the inflow passage 8 side (gas-liquid inflow hole 26 side). be. The nozzle hole 35 is formed in a circular shape with a hole diameter d1 (nozzle hole diameter). The hole diameter d1 of the nozzle hole 35 is smaller than the hole diameter D1 of the gas-liquid inflow hole 26 (d1<D1).

バブル発生器Ｚは、図５、及び図７乃至図１０に示すように、流れ筒体１内（流入路８）において、噴射ノズルＹ（ノズル本体１９）に配置される。バブル発生器Ｙは、図９乃至図７に示すように、液体絞り穴４１、液体ガイド４５を備える。 As shown in FIGS. 5 and 7 to 10, the bubble generator Z is arranged in the injection nozzle Y (nozzle body 19) inside the flow cylinder 1 (inflow path 8). The bubble generator Y has a liquid throttle hole 41 and a liquid guide 45, as shown in FIGS.

液体絞り穴４１は、図８及び図９に示すように、ノズル本体１９（ノズル閉塞部）に形成される。液体絞り穴４１は、ノズル穴３５及び流入路８（気液流入穴２６）と同心に配置される。
液体絞り穴４１は、流出筒部１８（流れ筒体１）の筒中心線ａの方向Ａにおいて、ノズル本体１９を貫通して、ノズル穴３５及び流入路８（気液流入穴２６）に連通される。液体絞り穴４１は、流出筒部１８（流れ筒体１）の筒中心線ａの方向Ａにおいて、ノズル穴３５及び気液流入穴２６に開口される。液体絞り穴４１は、ノズル平面３６に開口して、気液流入穴２６に連通される。 As shown in FIGS. 8 and 9, the liquid throttle hole 41 is formed in the nozzle body 19 (nozzle closing portion). The liquid throttle hole 41 is arranged concentrically with the nozzle hole 35 and the inflow path 8 (gas-liquid inflow hole 26).
The liquid throttle hole 41 penetrates the nozzle body 19 in the direction A of the cylinder center line a of the outflow cylinder part 18 (flow cylinder 1) and communicates with the nozzle hole 35 and the inflow passage 8 (gas-liquid inflow hole 26). be done. The liquid throttle hole 41 is opened to the nozzle hole 35 and the gas-liquid inflow hole 26 in the direction A of the cylinder center line a of the outflow cylinder portion 18 (flow cylinder 1). The liquid throttle hole 41 opens to the nozzle plane 36 and communicates with the gas-liquid inflow hole 26 .

液体絞り穴４１は、図８及び図９に示すように、流れ筒体１の筒中心線ａの方向Ａにおいて、流入路８側（気液流入穴２６側）から縮径しつつ延在される円錐穴（円錐台形穴）に形成される。液体絞り穴４１は、流れ筒体１の筒中心線ａの方向Ａにおいて、流入路８（気液流入穴２６）からノズル穴３５に向けて段々に縮径しつつ延在される円錐穴に形成される。
液体絞り穴４１は、図９に示すように、流れ筒体１の筒中心線ａ（流入路９の穴中心線ａ）の方向Ａに穴長さＭ１を有する。
液体絞り穴４１は、図９に示すように、流入路８（気液流入穴２６、ノズル平面３６）に開口する穴直径ｄＭ（穴下直径）を有し、及びノズル穴３５に開口する穴直径ｄ１（穴上直径）を有する。液体絞り穴４１の穴直径ｄＭは、ノズル平面３６に開口する穴直径であって、気液流入穴２６の穴直径Ｄ１より小径である（ｄＭ＜Ｄ１）。液体絞り穴４１の穴直径ｄＭは、穴直径ｄ１より大経である（ｄ１＜ｄＭ）。液体絞り穴４１の穴直径ｄ１は、ノズル穴３５の穴直径ｄ１と同一径である。 As shown in FIGS. 8 and 9, the liquid throttle hole 41 extends from the side of the inflow passage 8 (side of the gas-liquid inflow hole 26) in the direction A of the cylinder center line a of the flow cylinder 1 while decreasing in diameter. formed into a conical hole (truncated conical hole). The liquid throttle hole 41 is a conical hole that extends from the inflow passage 8 (gas-liquid inflow hole 26) toward the nozzle hole 35 in the direction A of the cylinder center line a of the flow cylinder 1 while gradually decreasing in diameter. It is formed.
As shown in FIG. 9, the liquid throttle hole 41 has a hole length M1 in the direction A of the tube center line a of the flow tube 1 (the hole center line a of the inflow passage 9).
As shown in FIG. 9, the liquid throttle hole 41 has a hole diameter dM (lower hole diameter) opening to the inflow path 8 (air-liquid inflow hole 26, nozzle plane 36) and a hole opening to the nozzle hole 35. It has a diameter d1 (hole diameter). The hole diameter dM of the liquid throttle hole 41 is the hole diameter opening to the nozzle plane 36, and is smaller than the hole diameter D1 of the gas-liquid inflow hole 26 (dM<D1). The hole diameter dM of the liquid throttle hole 41 is larger than the hole diameter d1 (d1<dM). The hole diameter d1 of the liquid throttle hole 41 is the same diameter as the hole diameter d1 of the nozzle hole 35 .

液体絞り穴４１をノズル本体１９に形成すると、気液流入穴２６（流入路８）は、図７乃至図９に示すように、流れ筒体１（流入筒部１３）の筒中心線ａの方向Ａにおいて、液体絞り穴４１及び流入口９（第１流入絞り穴２７）の間に配置されて、液体絞り穴４１から拡径される。気液流入穴２６は、図８及び図９に示すように、液体絞り穴４１にノズル段差面３６Ａ（ノズル段差平面）を有して、液体絞り穴４１から拡径して形成される。ノズル段差面３６Ａは、ノズル平面３６の一部である。ノズル段差面３６Ａは、流れ筒体１の筒中心線ａと直交する方向において、ノズル本体１９の外周面及び液体絞り穴４１の間のノズル平面３６であって、流れ筒体１の周方向（円周方向）にわたって形成される。 When the liquid throttle hole 41 is formed in the nozzle body 19, the gas/liquid inflow hole 26 (inflow path 8) is aligned with the center line a of the flow tube 1 (inflow tube portion 13) as shown in FIGS. In the direction A, it is arranged between the liquid throttle hole 41 and the inlet 9 (the first inlet throttle hole 27 ) and widens from the liquid throttle hole 41 . As shown in FIGS. 8 and 9, the gas-liquid inflow hole 26 has a nozzle step surface 36A (nozzle step plane) in the liquid throttle hole 41 and is formed by increasing the diameter from the liquid throttle hole 41 . The nozzle step surface 36A is part of the nozzle plane 36. As shown in FIG. The nozzle stepped surface 36A is the nozzle plane 36 between the outer peripheral surface of the nozzle body 19 and the liquid throttle hole 41 in the direction perpendicular to the cylinder center line a of the flow cylinder 1, and extends in the circumferential direction of the flow cylinder 1 ( circumferential direction).

液体ガイド４５は、図７乃至図１７に示すように、液体閉塞板４６（液体ガイド板）、及び液体ガイドコア４７を有する。 The liquid guide 45 has a liquid blocking plate 46 (liquid guide plate) and a liquid guide core 47, as shown in FIGS.

液体閉塞板４６は、図１１乃至図１７に示すように、合成樹脂で板状（円形平板）に形成に形成される（液体閉塞円板）。液体閉塞板４６は、板厚さ方向に板表面４６Ａ（閉塞板表面）及び板裏面４６Ｂ（閉塞板裏面）を有する。板表面４６Ａ及び板裏面４６Ｂは、板厚さ方向に板厚さ間隔（板厚さＴ）を有して平行に配置される。 As shown in FIGS. 11 to 17, the liquid blocking plate 46 is made of synthetic resin and formed into a plate shape (circular flat plate) (liquid blocking disk). The liquid blocking plate 46 has a plate surface 46A (blocking plate surface) and a plate back surface 46B (blocking plate back surface) in the plate thickness direction. The plate surface 46A and the plate back surface 46B are arranged in parallel with a plate thickness interval (plate thickness T) in the plate thickness direction.

液体閉塞板４６は、図１１乃至図１７に示すように、複数の液体導入穴であって、例えば、第１及び第２液体導入穴５１，５２を有する。第１及び第２液体導入穴５１，５２は、図１６に示すように、液体閉塞板４６の周方向（円周方向）において、第１及び第２液体導入穴５１，５２の間に角度１８０度（１８０°）の導入穴角度θＡの間隔を隔て配置される。第１及び第２液体導入穴５１，５２は、図１３に示すように、液体閉塞板４６の板中心線ＣＬを中心として、液体閉塞板４６に位置する半径ｒｐ（直径ｄｐ）の円ＲＯ上に配置される。第１及び第２液体導入穴５１，５２は、例えば、円形穴に形成されて、第１及び第２液体導入穴５１，５２の穴中心線ＨＬを円ＲＯに一致（位置）して配置される。
第１及び第２液体導入穴５１，５２は、図１１乃至図１７に示すように、液体閉塞板４６の板中心線ＣＬの方向において、液体閉塞板４６を貫通して、液体閉塞板４６の板表面４６Ａ及び板裏面４６Ｂに開口される。 As shown in FIGS. 11 to 17, the liquid blocking plate 46 has a plurality of liquid introduction holes, such as first and second liquid introduction holes 51 and 52 . As shown in FIG. 16, the first and second liquid introduction holes 51 and 52 are arranged at an angle of 180 between the first and second liquid introduction holes 51 and 52 in the circumferential direction (circumferential direction) of the liquid blocking plate 46 . They are spaced apart by an inlet hole angle θA of degrees (180°). As shown in FIG. 13, the first and second liquid introduction holes 51 and 52 are formed on a circle RO with a radius rp (diameter dp) located in the liquid blocking plate 46 with the plate center line CL of the liquid blocking plate 46 as the center. placed in The first and second liquid introduction holes 51 and 52 are formed, for example, as circular holes, and arranged such that the hole center lines HL of the first and second liquid introduction holes 51 and 52 coincide (position) with the circle RO. be.
As shown in FIGS. 11 to 17, the first and second liquid introduction holes 51 and 52 pass through the liquid blockage plate 46 in the direction of the plate center line CL of the liquid blockage plate 46, and extend through the liquid blockage plate 46. Openings are provided on the plate front surface 46A and the plate back surface 46B.

液体ガイドコア４７は、図１１乃至図１７に示すように、円錐渦巻き状（円錐螺旋状、又は円錐台形の渦巻き状）に形成される。
液体ガイドコア４７は、図１１乃至図１７に示すように、円錐上面４７Ａ、円錐底面４７Ｂ（円錐底平面）、円錐側面４７Ｃ、及び液体導入穴５１，５２と同数の渦巻き面であって、例えば、第１及び第２渦巻面５５，５６を有する。 As shown in FIGS. 11 to 17, the liquid guide core 47 is formed in a conical spiral shape (conical spiral shape or truncated conical spiral shape).
As shown in FIGS. 11 to 17, the liquid guide core 47 has a conical top surface 47A, a conical bottom surface 47B (conical bottom plane), a conical side surface 47C, and the same number of spiral surfaces as the liquid introduction holes 51 and 52. For example, , first and second spiral surfaces 55 , 56 .

第１及び第２渦巻き面５５，５６は、図１１乃至図１５、及び図１７に示すように、同一渦巻き状に形成される。第１及び第２渦巻き面５５，５６は、図１１乃至図１３、及び図１７に示すように、液体ガイドコア４７の円錐側面４７Ｃに交差して、円錐底面４７Ｂ及び円錐上面４７Ａの間に配置される。
第１及び第２渦巻き面５５，５６は、液体ガイドコア４７の円錐中心線ＬＸを対称点として点対称に配置される。第２渦巻き面５６は、円錐中心線ＬＸを中心として、第１渦巻き面５５の位置から角度：１８０度（１８０°）だけ回転して配置される。
第１及び第２渦巻き面５５，５６は、円錐底面４７Ｂから円錐上面４７Ａに向けて縮径しつつ渦巻き状に形成されて、円錐上面４７Ａまで延在される。 The first and second spiral surfaces 55 and 56 are formed in the same spiral shape as shown in FIGS. 11-15 and 17 . The first and second spiral surfaces 55, 56 intersect the conical side surface 47C of the liquid guide core 47 and are located between the conical bottom surface 47B and the conical top surface 47A, as shown in FIGS. be done.
The first and second spiral surfaces 55 and 56 are arranged symmetrically with respect to the cone center line LX of the liquid guide core 47 . The second spiral surface 56 is rotated by an angle of 180 degrees (180°) from the position of the first spiral surface 55 about the cone centerline LX.
The first and second spiral surfaces 55 and 56 are spirally formed while decreasing in diameter from the conical bottom surface 47B toward the conical top surface 47A, and extend to the conical top surface 47A.

第１及び第２渦巻き面５５，５６は、図１１乃至図１７に示すように、円錐底面４７Ｂ側の渦巻き面端５５Ａ，５６Ａ（一方の渦巻き面端）、及び円錐上面４７Ａ側の渦巻き面端５５Ｂ，５６Ｂ（他方の渦巻き面端）を有する。一方の各渦巻き面端５５Ａ，５６Ａは、円錐底面４７Ｂに連続して形成され、他方の渦巻き面端５５Ｂ，５６Ｂは、円錐上面４７Ａに連続して形成される。
第１及び第２渦巻き面５５，５６において、一方の渦巻き面端５５Ａ，５６Ａは、図１５に示すように、液体ガイドコア４７の円錐中心線ＬＸと直交する第１直交方向ＨＸ（コア幅方向）において、各渦巻き面端５５Ａ，５６Ａの間に面端間隔ｈｘを隔てて配置される。一方の各渦巻き面端５５Ａ，５６Ａは、図１５に示すように、第１直交方向ＨＸに面端幅ｈｙを有して延在されて、円錐底面４７Ｂに直交し、渦巻き面端５５Ａ，５６Ｂの両側の円錐側面４７Ｃに交差して配置される。
これにより、一方の各渦巻き面端５５Ａ，５６Ａ側は、第１直交方向ＨＸにおいて、各渦巻き面端５５Ａ，５６Ａ側にコア幅間隔ｈｘを隔てて平行に配置される。 As shown in FIGS. 11 to 17, the first and second spiral surfaces 55 and 56 are spiral surface ends 55A and 56A (one spiral surface end) on the conical bottom surface 47B side and spiral surface ends on the conical top surface 47A side. 55B, 56B (the other spiral face end). One of the spiral surface ends 55A and 56A is formed continuously with the conical bottom surface 47B, and the other spiral surface ends 55B and 56B are formed continuously with the conical top surface 47A.
As shown in FIG. 15, one spiral surface end 55A, 56A of the first and second spiral surfaces 55, 56 extends in a first orthogonal direction HX (core width direction) perpendicular to the cone center line LX of the liquid guide core 47. ), the spiral face ends 55A and 56A are arranged with a face end interval hx therebetween. As shown in FIG. 15, each spiral surface end 55A, 56A extends with a surface end width hy in the first orthogonal direction HX, perpendicular to the conical bottom surface 47B, and spiral surface ends 55A, 56B. are placed across the conical side surfaces 47C on both sides of the .
As a result, the spiral surface ends 55A and 56A on one side are arranged parallel to the spiral surface ends 55A and 56A with a core width interval hx in the first orthogonal direction HX.

液体ガイドコア４７は、図１７に示すように、円錐中心線ＬＸの方向にガイド高さＧを有する。ガイド高さＧは、円錐中心線ＬＸの方向において、円錐上面４７Ａ及び円錐底面４７Ｂの間の高さであって、液体絞り穴４１の穴長さＭ１と略同一の高さ（同一高さ、又は僅かに長い高さ）にする。
液体ガイドコア４７は、図１４に示すように、第１直交方向ＨＸ（コア幅方向）において、円錐底面４７Ｂ（円錐側面４７Ｃ）の最大コア幅ＧＨ（コア幅）を有する。最大コア幅ＧＨは、一方の各渦巻き面端５５Ａ，５６Ａと交差する円錐側面４７Ｃのうち、最も外側に位置する渦巻き面端５５Ａ側の円錐側面４７Ｃと、最も外側に位置する渦巻き面端５６Ａ側の円錐側面４７Ｃの間のコア幅である。最大コア幅ＧＨは、第１及び第２液体導入穴５１，５２を配置する円ＲＯの直径ｄｐと略同一の幅（円ＲＯの直径ｄｐと同一の幅又は円ＲＯの直径ｄｐより僅かに広い幅）である。 The liquid guide core 47 has a guide height G in the direction of the cone centerline LX, as shown in FIG. The guide height G is the height between the cone top surface 47A and the cone bottom surface 47B in the direction of the cone center line LX, and is approximately the same height as the hole length M1 of the liquid throttle hole 41 (same height, or slightly longer height).
As shown in FIG. 14, the liquid guide core 47 has a maximum core width GH (core width) of the conical bottom surface 47B (conical side surface 47C) in the first orthogonal direction HX (core width direction). Among the conical side surfaces 47C intersecting the one spiral surface ends 55A and 56A, the maximum core width GH is defined by the conical side surface 47C on the outermost spiral surface end 55A side and the outermost spiral surface end 56A side. is the core width between the conical sides 47C of the . The maximum core width GH is substantially the same width as the diameter dp of the circle RO on which the first and second liquid introduction holes 51 and 52 are arranged (the same width as the diameter dp of the circle RO or slightly wider than the diameter dp of the circle RO). width).

液体閉塞板４６及び液体ガイドコア４７は、図１１乃至図１７に示すように、例えば、合成樹脂で一体に形成される。 The liquid blocking plate 46 and the liquid guide core 47 are integrally formed of synthetic resin, for example, as shown in FIGS. 11 to 17 .

液体ガイドコア４７は、液体閉塞板４６と同心に配置される。液体ガイドコア４７は、図１１乃至１７に示すように、液体ガイドコア４７の円錐中心線ＬＸを液体閉塞板４６の板中心線ＣＬに一致（位置）して配置される。 The liquid guide core 47 is arranged concentrically with the liquid blocking plate 46 . As shown in FIGS. 11 to 17, the liquid guide core 47 is arranged so that the conical center line LX of the liquid guide core 47 coincides (positions) with the plate center line CL of the liquid blocking plate 46 .

液体ガイドコア４７は、液体ガイドコア４７の円錐底面４７Ｂを液体閉塞板４６の板表面４６Ａに当接して、液体閉塞板４６と一体にされる。液体ガイドコア４７は、液体閉塞板４６に固定される。
液体ガイドコア４７は、図１１乃至図１３、及び図１６に示すように、第１及び第２渦巻き面５５，５６の一方の渦巻き面端５５Ａ，５６Ａ（一方の渦巻き面端５５Ａ，５６Ａ側）を各液体導入穴５１，５２内に突出して、液体閉塞板４６に固定される。液体ガイドコア４７は、一方の各渦巻き面端５５Ａ，５６Ａ側に対峙（対向）する円錐底面４７Ｂを、第１及び第２渦巻き面５５，５６の一方の渦巻き面端５５Ａ，５６Ａ側と共に、液体閉塞板４６の各液体導入穴５１，５２内に突出して、液体閉塞板４６と一体に形成される。 The liquid guide core 47 is integrated with the liquid blocking plate 46 by abutting the conical bottom surface 47B of the liquid guiding core 47 against the plate surface 46A of the liquid blocking plate 46 . The liquid guide core 47 is fixed to the liquid blocking plate 46 .
As shown in FIGS. 11 to 13 and 16, the liquid guide core 47 is provided on one spiral surface end 55A, 56A of the first and second spiral surfaces 55, 56 (one spiral surface end 55A, 56A side). protrude into the liquid introduction holes 51 and 52 and are fixed to the liquid blocking plate 46 . The liquid guide core 47 has a conical bottom surface 47B that faces (opposes) one of the spiral surface ends 55A and 56A along with one of the spiral surface ends 55A and 56A of the first and second spiral surfaces 55 and 56. It protrudes into each of the liquid introduction holes 51 and 52 of the closure plate 46 and is integrally formed with the liquid closure plate 46 .

液体ガイドコア４７は、図１４に示すように、液体閉塞板４６の周方向（円ＲＯの周方向）において、第１渦巻き面５５の一方の渦巻き面端５５Ａと、第１液体導入穴５１の穴中心線ＨＬ及び円錐中心線ＬＸ（液体閉塞板４６の板中心線ＣＬ）を結ぶ第１中心基準線ＬＹとの間に面端角度θＹを隔てて、第１渦巻き面５５の一方の渦巻き面端５５Ａを第１液体導入穴５１内に突出して配置される。面端角度θＹは、例えば、角度０度（０°）以上、角度３０度（３０°）以下である（０°≦θ≦３０°）。
液体ガイドコア４７は、図１４に示すように、液体閉塞板４６の周方向（円ＲＯの周方向）において、第２渦巻き面５６の一方の渦巻き面端５６Ａと、第２液体導入穴５２の穴中心線ＨＬ及び円錐中心線ＬＸ（液体閉塞板４６の板中心線ＣＬ）を結ぶ第２中心基準線ＬＺとの間に面端角度θＹを隔てて、第２渦巻き面５６の一方の渦巻き面端５６Ａを第２液体導入穴５２内に突出して配置する。
液体ガイドコア４７は、図１３及び図１４に示すように、第１及び第２渦巻き面５５，５６を円ＲＯ内（各液体導入穴５１，５２を配置する円ＲＯの内側）に配置して、第１及び第２渦巻き面５５，５６の一方の渦巻き面端５５Ａ，５６Ａ（一方の渦巻き面端５５Ａ，５６Ａ側）を第１及び第２各液体導入穴５１，５２内に突出する。 As shown in FIG. 14, the liquid guide core 47 has one spiral surface end 55A of the first spiral surface 55 and the first liquid introduction hole 51 in the circumferential direction of the liquid blockage plate 46 (the circumferential direction of the circle RO). One spiral surface of the first spiral surface 55 is separated from the first center reference line LY connecting the hole center line HL and the cone center line LX (the plate center line CL of the liquid blocking plate 46) with a face end angle θY. The end 55A is arranged to protrude into the first liquid introduction hole 51 . The face end angle θY is, for example, an angle of 0 degree (0°) or more and an angle of 30 degrees (30°) or less (0°≦θ≦30°).
As shown in FIG. 14, the liquid guide core 47 has one spiral surface end 56A of the second spiral surface 56 and the second liquid introduction hole 52 in the circumferential direction of the liquid blockage plate 46 (the circumferential direction of the circle RO). One spiral surface of the second spiral surface 56 is separated from the second center reference line LZ connecting the hole center line HL and the cone center line LX (the plate center line CL of the liquid blocking plate 46) with a surface end angle θY. The end 56A is arranged so as to protrude into the second liquid introduction hole 52 .
As shown in FIGS. 13 and 14, the liquid guide core 47 has the first and second spiral surfaces 55 and 56 arranged inside the circle RO (inside the circle RO where the liquid introduction holes 51 and 52 are arranged). , one spiral surface end 55A, 56A (one spiral surface end 55A, 56A side) of the first and second spiral surfaces 55, 56 protrudes into the first and second liquid introduction holes 51, 52, respectively.

第１及び第２渦巻き面５５，５６は、図１１乃至図１６に示すように、一方の渦巻き面端５５Ａ，５６Ａ（液体ガイドコア４７の円錐底面４７Ｂ側の渦巻き面端５５Ａ，５６Ａ）を第１及び第２液体導入穴５１，５２内に突出して配置される。第１渦巻き面５５は、一方の渦巻き面端５５Ａ（一方の渦巻き面端５５Ａ側）を第１液体導入穴５１内に突出して配置される。第２渦巻き面５６は、一方の渦巻き面端５６Ａ（一方の渦巻き面５６Ａ側）を第２液体導入穴５２内に突出して配置される。
第１及び第２渦巻き面５５，５６は、図１６に示すように、一方の渦巻き面端５５Ａ，５６Ａ側の第１及び第２渦巻き面５５，５６（円錐底面４７Ｂ側の第１及び第２渦巻き面５５，５６の一部）に対峙（対向）する円錐底面４７Ｂと共に、一方の渦巻き面端５５Ａ，５６Ａ（一方の渦巻き面端５５Ａ，５６Ａ側）を第１及び第２液体導入穴５１，５２に突出して配置される。
第１渦巻き面５５は、図１４に示すように、一方の渦巻き面端５５Ａと、第１中心基準ＬＹとの間に面端角度θＹを隔てて、第１渦巻き面５５の一方の渦巻き面端５５Ａ（一方の渦巻き面端５５Ａ側）を第１液体導入穴５１内に突出して配置される。
第２渦巻き面５６は、図１４に示すように、一方の渦巻き面端５６Ａと、第２中心基準線ＬＺとの間に面端角度θＹを隔てて、第２渦巻き面５６の一方の渦巻き面端５６Ａ（一方の渦巻き面端５６Ａ側）を第２液体導入穴５２内に突出して配置される。
第１及び第２渦巻き面５５，５６は、図１３及び図１４に示すように、一方の渦巻き面端５５Ａ，５６Ａ（一方の渦巻き面端５５Ａ，５６Ａ側）を円ＲＯ内（第１及び第２液体導入穴５１，５２を配置する円ＲＯの内側）に突出して配置される。 As shown in FIGS. 11 to 16, the first and second spiral surfaces 55 and 56 have one spiral surface ends 55A and 56A (the spiral surface ends 55A and 56A on the conical bottom surface 47B side of the liquid guide core 47) as the first spiral surface. It is arranged so as to protrude into the first and second liquid introduction holes 51 and 52 . The first spiral surface 55 is arranged so that one spiral surface end 55A (one spiral surface end 55A side) protrudes into the first liquid introduction hole 51 . The second spiral surface 56 is arranged such that one spiral surface end 56A (one spiral surface 56A side) protrudes into the second liquid introduction hole 52 .
As shown in FIG. 16, the first and second spiral surfaces 55, 56 are the first and second spiral surfaces 55, 56 on one spiral surface end 55A, 56A side (the first and second spiral surfaces on the conical bottom surface 47B side). One spiral surface end 55A, 56A (one spiral surface end 55A, 56A side) is formed into the first and second liquid introduction holes 51, 56A, 55A, 56B. 52 is protruded.
As shown in FIG. 14, the first spiral surface 55 is separated from one spiral surface end 55A and the first center reference LY by a surface end angle θY. 55A (one spiral surface end 55A side) is arranged to protrude into the first liquid introduction hole 51 .
As shown in FIG. 14, the second spiral surface 56 is separated by a surface end angle θY between one spiral surface end 56A and the second center reference line LZ. The end 56A (one spiral surface end 56A side) is arranged to protrude into the second liquid introduction hole 52 .
As shown in FIGS. 13 and 14, the first and second spiral surfaces 55 and 56 have one spiral surface end 55A and 56A (one spiral surface end 55A and 56A side) within the circle RO (the first and second spiral surfaces). 2 inside the circle RO where the liquid introduction holes 51 and 52 are arranged.

バブル発生器Ｚにおいて、液体ガイド４５は、図７乃至図１０に示すように、流れ筒体１内（流入路８及び流出路１０の間の流れ筒体１内）に配置される。液体ガイド４５は、流れ筒体１内において、噴射ノズルＹ（ノズル本体１９）に配置される。 In the bubble generator Z, the liquid guide 45 is arranged inside the flow tube 1 (inside the flow tube 1 between the inlet channel 8 and the outlet channel 10), as shown in FIGS. The liquid guide 45 is arranged in the jet nozzle Y (nozzle body 19 ) inside the flow cylinder 1 .

液体ガイド４５は、図７乃至図１０に示すように、液体ガイドコア４７を流入路８側（気液流入穴２６側）から液体絞り穴４１に挿入して、流れ筒体１内に配置される。
液体ガイド４５は、液体ガイドコア４７を円錐上面４７Ａ（液体閉塞板４６の板表面４６Ａ）から液体絞り穴４１内に挿入して配置される。
液体ガイド４５は、液体ガイドコア４７の円錐中心線ＬＸ（液体閉塞板４６の板中心線ＣＬ）を流れ筒体１の筒中心線ａ（ノズル穴３５及び液体絞り穴４１の穴中心線）に一致（位置）して、液体絞り穴４１と同心に配置される。 As shown in FIGS. 7 to 10, the liquid guide 45 is arranged in the flow cylinder 1 by inserting the liquid guide core 47 into the liquid restriction hole 41 from the side of the inflow path 8 (the side of the gas-liquid inflow hole 26). be.
The liquid guide 45 is arranged by inserting the liquid guide core 47 into the liquid restriction hole 41 from the conical upper surface 47A (the plate surface 46A of the liquid closing plate 46).
The liquid guide 45 aligns the cone center line LX of the liquid guide core 47 (the plate center line CL of the liquid blocking plate 46) with the tube center line a of the flow tube 1 (the hole center line of the nozzle hole 35 and the liquid throttle hole 41). It is aligned (positioned) and arranged concentrically with the liquid throttle hole 41 .

液体ガイド４５は、図７乃至図９に示すように、流れ筒体１の筒中心線ａの方向Ａにおいて、液体閉塞板４６を流入筒部１３（流入筒本体５）の一方の筒端１３Ａ及びノズル本体１９のノズル段差面３６Ａ（ノズル平面３６）の間（各シールリング３１，３２の間）に挿入して配置される。液体ガイド４５は、液体閉塞板４６の板表面４６Ａを流入路８側（液体混合流入穴２６側）からノズル段差面３６Ａ（ノズル本体１９）に当接して、液体絞り穴４１を流入路８側（気液流入穴２６側）から閉塞して配置される。
液体閉塞板４６（液体閉塞板４６の外周側）は、図８及び図９に示すように、液体閉塞板４６の板表面４６Ａをノズル段差面３６Ａ（ノズル本体１９）に当接し、及び液体閉塞板４６の板裏面４６Ｂを流入筒部１３（流入筒本体５）の一方の筒端１３Ａに密接して、ノズル本体１９のノズル段差面３６Ａ及び流入筒部１３（流入筒本体５）の一方の筒端１３Ａの間に配置（挿入）される。液体閉塞板４６（液体閉塞板４６の外周側）は、筒閉塞板２３をノズル段差部２０に当接した連結筒部２２（連結筒本体７）の一方の回転（流入口９に向かう回転）によって、ノズル本体１９（ノズル段差面３６Ａ）及び流入筒部１３の一方の筒端１３Ａに密着される。 As shown in FIGS. 7 to 9, the liquid guide 45 is arranged so that the liquid blocking plate 46 extends along one end 13A of the inflow cylinder portion 13 (inflow cylinder main body 5) in the direction A of the cylinder center line a of the flow cylinder 1. As shown in FIGS. and between the nozzle step surface 36A (nozzle flat surface 36) of the nozzle main body 19 (between the seal rings 31 and 32). The liquid guide 45 abuts the plate surface 46A of the liquid blocking plate 46 from the inflow path 8 side (liquid mixing inflow hole 26 side) to the nozzle stepped surface 36A (nozzle body 19), and moves the liquid restriction hole 41 toward the inflow path 8 side. It is arranged so as to be closed from (air-liquid inflow hole 26 side).
As shown in FIGS. 8 and 9, the liquid blockage plate 46 (on the outer peripheral side of the liquid blockage plate 46) abuts the plate surface 46A of the liquid blockage plate 46 against the nozzle stepped surface 36A (nozzle body 19) and closes the liquid. The plate back surface 46B of the plate 46 is brought into close contact with one end 13A of the inflow cylinder portion 13 (inflow cylinder main body 5), and the nozzle stepped surface 36A of the nozzle body 19 and one of the inflow cylinder portion 13 (inflow cylinder main body 5) It is arranged (inserted) between the tube ends 13A. The liquid blockage plate 46 (on the outer peripheral side of the liquid blockage plate 46) rotates in one direction (rotation toward the inlet 9) of the connection cylinder portion 22 (connection cylinder main body 7) in which the cylinder blockage plate 23 is in contact with the nozzle stepped portion 20. , the nozzle main body 19 (nozzle stepped surface 36A) and one cylindrical end 13A of the inflow cylindrical portion 13 are brought into close contact with each other.

液体ガイド４５は、図９及び図１０に示すように、液体ガイドコア４７の円錐側面４７Ｃ，及び液体絞り穴４１の円錐内周面４１Ａの間に隙間を隔てて、液体ガイドコア４７を円錐上面４７Ａから液体絞り穴４１内に挿入して配置される。
液体ガイド４５は、図９及び図１０に示すように、液体ガイドコア４７の第１及び第２渦巻き面５５，５６（各渦巻き面）、液体ガイドコア４７の円錐側面４７Ｃ、及び液体絞り穴４１の円錐内周面４１Ａの間に、渦巻き状の複数の液体流路であって、液体導入穴５１，５２と同数の第１及び第２液体流路δ１，δ２を形成しつつ、液体ガイドコア４７を液体絞り穴４１内に装着して配置される。 As shown in FIGS. 9 and 10, the liquid guide core 45 is provided with a gap between the conical side surface 47C of the liquid guide core 47 and the conical inner peripheral surface 41A of the liquid restricting hole 41 so that the liquid guide core 47 is formed on the conical upper surface. It is inserted into the liquid throttle hole 41 from 47A.
9 and 10, the liquid guide 45 includes the first and second spiral surfaces 55, 56 (each spiral surface) of the liquid guide core 47, the conical side surface 47C of the liquid guide core 47, and the liquid throttle hole 41. Between the conical inner peripheral surface 41A of the liquid guide core, while forming a plurality of spiral liquid flow paths, the first and second liquid flow paths δ1, δ2 of the same number as the liquid introduction holes 51, 52 47 is mounted and positioned within the liquid restriction hole 41 .

液体ガイドコア４７は、図８乃至図１０に示すように、流入路８側（気液流入穴２６側）から液体絞り穴４１内に挿入される。液体ガイドコア４７は、円錐上面４７Ａから液体絞り穴４１内に挿入される。
液体ガイドコア４７は、円錐中心線ＬＸを液体絞り穴４１の穴中心線に一致（位置）して、液体絞り穴４１内に配置される。液体ガイドコア４７は、円錐側面４７Ｃ及び液体絞り穴４１の円錐内周面４１Ａの間に隙間を隔てて、円錐上面４７Ａから液体絞り穴４１内に挿入される。
これにより、液体ガイドコア４７は、図９及び図１０に示すように、第１及び第２渦巻き面５５，５６（各渦巻き面）、液体絞り穴４１の円錐内周面４１Ａ、及び円錐側面４７Ｃの間に、渦巻き状の第１及び第２液体流路δ１，δ２を形成して、液体絞り穴４１内に装着される。
液体ガイドコア４７及び液体絞り穴４１は、第１及び第２渦巻き面５５，５６（各渦巻き面）に沿って渦巻き状（螺旋状）の第１及び第２液体流路δ１，δ２（複数の液体流路δ１，δ２，…）を形成する。 As shown in FIGS. 8 to 10, the liquid guide core 47 is inserted into the liquid restriction hole 41 from the side of the inflow passage 8 (the side of the gas/liquid inflow hole 26). The liquid guide core 47 is inserted into the liquid throttle hole 41 from the conical upper surface 47A.
The liquid guide core 47 is arranged in the liquid throttle hole 41 with the cone centerline LX aligned (positioned) with the hole centerline of the liquid throttle hole 41 . The liquid guide core 47 is inserted into the liquid throttle hole 41 from the conical upper surface 47A with a gap between the conical side surface 47C and the conical inner peripheral surface 41A of the liquid throttle hole 41 .
9 and 10, the liquid guide core 47 has first and second spiral surfaces 55 and 56 (each spiral surface), the conical inner circumferential surface 41A of the liquid throttle hole 41, and the conical side surface 47C. In between, spiral first and second liquid flow paths δ1 and δ2 are formed and mounted in the liquid throttle hole 41 .
The liquid guide core 47 and the liquid throttle hole 41 are arranged along the first and second spiral surfaces 55 and 56 (each spiral surface) to form first and second spiral liquid flow paths δ1 and δ2 (a plurality of ) are formed.

第１及び第２液体流路δ１，δ２（複数の液体流路）は、図９及び図１０に示すように、液体ガイドコア４７の第１及び第２渦巻き面５５，５６（各渦巻き面）、液体絞り穴４１の円錐内周面４１Ａ、及び液体ガイドコア４７の円錐側面４７Ｃの間に渦巻き状に形成される。
第１及び第２液体流路δ１，δ２は、図９に示すように、円錐中心線ＬＸの方向において、第１及び第２渦巻き面５５，５６の一方の渦巻き面端５５Ａ，５６Ａ（液体ガイドコア４７の円錐底面４７Ｂ）から他方の渦巻き面端５５Ｂ，５６Ｂ（液体ガイドコア４７の円錐上面４７Ａ）に渦巻き状に延在されて、ノズル穴３５内（又はノズル穴３５側の液体絞り穴４１内）に開口される。第１及び第２液体流路δ１，δ２（複数の液体流路）は、ノズル穴３５（又は液体絞り穴４１を通してノズル穴３５）に連通される。
第１及び第２液体流路δ１，δ２（複数の液体流路）は、図９に示すように、第１及び第２液体導入穴５１，５２内に突出する第１及び第２渦巻き面５５，５６の一方の渦巻き面端５５Ａ，５６Ａから第１及び第２液体導入穴５１，５２に開口される。第１及び第２液体流路δ１，δ２は、第１及び第２渦巻き面５５，５６の一方の渦巻き面端５５Ａ，５６Ａ（一方の渦巻き面端５５Ａ，５６Ａ側）を通して、第１及び第２液体導入穴５１，５２に開口される。
第１及び第２液体流路δ１，δ２は、第１及び第２液体導入穴５１，５１を通して流入路８（気液流入穴２６）に連通され、及びノズル穴３５を通して流出路１０に連通される。
これにより、流れ筒体１において、流入路８（気液流入穴２６）、及び流出路１０は、図７乃至図９に示すように、液体ガイド４５（バブル発生器Ｚ）の第１及び第２液体導入穴５１，５１、第１及び第２液体流路δ１，δ２、及びノズル本体１９（噴射ノズルＹ）のノズル穴３５を通して連通される。 As shown in FIGS. 9 and 10, the first and second liquid flow paths .delta.1 and .delta.2 (plurality of liquid flow paths) are formed by first and second spiral surfaces 55 and 56 (each spiral surface) of the liquid guide core 47. , the conical inner peripheral surface 41A of the liquid restricting hole 41 and the conical side surface 47C of the liquid guide core 47. As shown in FIG.
As shown in FIG. 9, the first and second liquid flow paths .delta.1 and .delta.2 are formed in the direction of the cone center line LX by one spiral surface ends 55A and 56A (liquid guides) of the first and second spiral surfaces 55 and 56. spirally extending from the conical bottom surface 47B of the core 47) to the other spiral surface ends 55B and 56B (the conical upper surface 47A of the liquid guide core 47), and the liquid throttle hole 41 in the nozzle hole 35 (or the liquid throttle hole 41 on the side of the nozzle hole 35). inside). The first and second liquid flow paths δ1 and δ2 (a plurality of liquid flow paths) communicate with the nozzle hole 35 (or the nozzle hole 35 through the liquid throttle hole 41).
As shown in FIG. 9, the first and second liquid flow paths δ1, δ2 (plurality of liquid flow paths) are formed by first and second spiral surfaces 55 protruding into the first and second liquid introduction holes 51, 52. , 56 are opened to the first and second liquid introduction holes 51 and 52 from one spiral surface ends 55A and 56A. The first and second liquid flow paths δ1, δ2 pass through one spiral surface end 55A, 56A (one spiral surface end 55A, 56A side) of the first and second spiral surfaces 55, 56, and flow through the first and second liquid flow paths δ1, δ2. The liquid introduction holes 51 and 52 are opened.
The first and second liquid flow paths δ1, δ2 communicate with the inflow path 8 (gas-liquid inflow hole 26) through the first and second liquid introduction holes 51, 51, and communicate with the outflow path 10 through the nozzle hole 35. be.
As a result, in the flow cylinder 1, the inflow path 8 (gas-liquid inflow hole 26) and the outflow path 10 are arranged in the first and second positions of the liquid guide 45 (bubble generator Z) as shown in FIGS. The two liquid introduction holes 51, 51, the first and second liquid flow paths .delta.1, .delta.2, and the nozzle hole 35 of the nozzle body 19 (ejection nozzle Y) communicate with each other.

気体導入管２（気体導入管体）は、図４及び図７に示すように、一方の導入管端２Ａ側を継手管１５の他方の継手管端側（流入筒部１３の外周面から突出する他方の継手管端側）に気密に外嵌して、継手管１５に連結される。
これにより、気体導入管２は、一方の導入管端２Ａ（一方の管端）を流入路８（第１流入絞り穴２７）に連通して配置される。気体導入管２は、継手管１５、及び気体導入穴１２を通して、第１流入絞り穴２７（流入路８）に連通される。
気体導入管２は、他方の導入管端２Ｂ（他方の管端）から気体（空気）が流入される。 As shown in FIGS. 4 and 7, the gas introduction pipe 2 (gas introduction pipe body) has one introduction pipe end 2A protruding from the other joint pipe end side of the joint pipe 15 (from the outer peripheral surface of the inflow cylindrical portion 13). (the other end of the joint pipe) is airtightly fitted and connected to the joint pipe 15 .
As a result, the gas introduction pipe 2 is arranged such that one introduction pipe end 2A (one pipe end) communicates with the inflow passage 8 (first inflow throttle hole 27). The gas introduction pipe 2 communicates with the first inflow throttle hole 27 (inflow passage 8) through the joint pipe 15 and the gas introduction hole 12 .
Gas (air) flows into the gas introduction pipe 2 from the other introduction pipe end 2B (the other pipe end).

逆止弁３は、図４及び図７に示すように、気体導入管２の他方の導入管端２Ｂ及び継手管１５の間の気体導入管２に配置されて、気体導入管２に連通される。
逆止弁３は、気体導入管２の一方の導入管端２Ａ側への流れを許容し、他方の導入管端２Ｂ側への流れを阻止（規制、禁止）する。
逆止弁３は、気体導入管２の他方の管端２Ｂから一方の管端２Ａに流れる気体の流れによって開弁されて、気体導入管２の一方の導入管端２Ａ側への気体の流れを許容する。逆止弁３は、気体導入管２の一方の管端２Ａから他方の管端２Ｂへの流れによって閉弁されて、他方の導入管端２Ｂ側への流れを阻止（規制、禁止）する。 The check valve 3 is arranged in the gas introduction pipe 2 between the other introduction pipe end 2B of the gas introduction pipe 2 and the joint pipe 15 and communicated with the gas introduction pipe 2, as shown in FIGS. be.
The check valve 3 permits the flow toward one of the introduction pipe ends 2A of the gas introduction pipe 2 and blocks (restricts or prohibits) the flow to the other introduction pipe end 2B.
The check valve 3 is opened by the flow of gas from the other pipe end 2B of the gas introduction pipe 2 to the one pipe end 2A of the gas introduction pipe 2, and the gas flows toward the one introduction pipe end 2A of the gas introduction pipe 2. allow. The check valve 3 is closed by the flow from one pipe end 2A of the gas introduction pipe 2 to the other pipe end 2B, and blocks (restricts or prohibits) the flow to the other introduction pipe end 2B side.

バブル発生装置Ｘ（バブル発生器Ｙ）は、図４及び図７に示すように、液体供給源７１に接続され、液体供給源７１から液体が流入される。液体供給源７１は、例えば、水（水道水）を供給する水供給源であって、流れ筒体１の流入口９（流入路８）に接続されて、流入路８に水（加圧水）を流入する。流れ筒体１は、図７に示すように、液体が流入口９から流入路８に流入され、流出路１０を流れる水を流出口１１から流出する。 The bubble generator X (bubble generator Y) is connected to a liquid supply source 71 and receives liquid from the liquid supply source 71, as shown in FIGS. The liquid supply source 71 is, for example, a water supply source that supplies water (tap water), and is connected to the inflow port 9 (inflow path 8) of the flow cylinder 1 to supply water (pressurized water) to the inflow path 8. influx. As shown in FIG. 7 , the flow tube 1 allows liquid to flow into the inflow channel 8 from the inflow port 9 , and allows water flowing through the outflow channel 10 to flow out from the outflow port 11 .

水供給源７１（液体供給源）から供給される水（加圧水）は、図７に示すように、流入口９から流入開放穴２９（流入路８）に流入される。流入開放穴２９に流入した水は、第２流入絞り穴２８に流入され、第２流入絞り穴２８から第１流入絞り穴２７に噴射される。
第２流入絞り穴２８は、水の流速を増加しつつ減圧して、水（加圧水）を第１流入絞り穴２７に噴射する。水（加圧水）は、第２流入絞り穴２８によって流速を増加されつつ減圧されて、第２流入絞り穴２８から第１流入絞り穴２７に噴射される。 Water (pressurized water) supplied from a water supply source 71 (liquid supply source) flows into the inflow open hole 29 (inflow passage 8) from the inflow port 9, as shown in FIG. The water that has flowed into the inflow open hole 29 flows into the second inflow throttle hole 28 and is jetted from the second inflow throttle hole 28 to the first inflow throttle hole 27 .
The second inflow throttle hole 28 reduces the pressure while increasing the flow rate of water, and injects water (pressurized water) into the first inflow throttle hole 27 . The water (pressurized water) is decompressed while increasing the flow velocity by the second inflow throttle hole 28 and is jetted from the second inflow throttle hole 28 to the first inflow throttle hole 27 .

第１流入絞り穴２７（流入路８）に噴射された水は、図７に示すように、第１流入絞り穴２７を流れて、気液流入穴２６に噴射される。
気体導入管２の空気（気体）は、図４及び図７に示すように、第１流入絞り穴２７を流れる水（加圧水）の流れによって、第１流入絞り穴２７（流入路８）に引っ張られて、気体導入管２の他方の管端２Ｂから一方の管端２Ａ側（逆止弁３側）に流がれる。逆止弁３は、気体導入管２の他方の管端２Ｂから一方の管端２Ａ側（逆止弁３側）への空気（気体）の流れによって開弁される。
空気（外気）は、逆止弁３の開弁によって、他方の管端２Ｂから気体導入管２内に流入し、逆止弁３、継手管１５及び気体導入穴１２を通して、第１流入絞り穴２７（流入路８）に噴射される。気体導入穴１２は、気体導入管２を流れる空気を第１流入絞り穴２７に噴射する。第１流入絞り穴２７（流入路８）に噴射された空気は、第１流入絞り穴２７を流れる水に混入（混合）されて、第１流入絞り穴２７から水（液体）と共に気液流入穴２６に噴射される。第１流入絞り穴２７は、第１流出絞り穴２７を流れる水（液体）に噴射された空気（気体）が混入する空気混入水（気体混入水）の流速を増加しつつ減圧して、気液流入穴２６に噴射する。 The water jetted into the first inflow throttle hole 27 (inflow path 8) flows through the first inflow throttle hole 27 and is jetted into the gas-liquid inflow hole 26, as shown in FIG.
As shown in FIGS. 4 and 7, the air (gas) in the gas introduction pipe 2 is drawn into the first inflow throttle hole 27 (inflow path 8) by the flow of water (pressurized water) flowing through the first inflow throttle hole 27. and flows from the other pipe end 2B of the gas introduction pipe 2 to the one pipe end 2A side (the check valve 3 side). The check valve 3 is opened by the flow of air (gas) from the other pipe end 2B of the gas introduction pipe 2 to the one pipe end 2A side (the check valve 3 side).
Air (outside air) flows into the gas introduction pipe 2 from the other pipe end 2B by opening the check valve 3, passes through the check valve 3, the joint pipe 15, and the gas introduction hole 12, and enters the first inflow throttle hole. 27 (inflow passage 8). The gas introduction hole 12 injects the air flowing through the gas introduction pipe 2 to the first inflow throttle hole 27 . The air injected into the first inflow throttle hole 27 (inflow path 8) is mixed (mixed) with the water flowing through the first inflow throttle hole 27, and flows into gas-liquid together with water (liquid) from the first inflow throttle hole 27. It is injected into hole 26 . The first inflow throttle hole 27 reduces the pressure of air-entrained water (gas-entrained water) in which air (gas) is injected into the water (liquid) flowing through the first outflow throttle hole 27 while increasing the flow velocity of the water (liquid). Inject into the liquid inflow hole 26 .

第１流入絞り穴２７から気液流入穴２６に空気混入水を噴射すると、第１流入絞り穴２７の出口側（気液流入穴２６側）で負圧状態となる。
第１流入絞り穴２７の出口側を負圧状態にすることで、第１流入絞り穴２７から気液流入穴２６に噴射される高圧及び乱流の空気混入水（水、空気）は、第１流入絞り穴２７の出口部分を通過する際、減圧による気泡析出と、水中（液体中）の空気（気体）が乱流により粉砕（剪断）され、マイクロ単位の気泡（空気のマイクロバブル）及びナノ単位の気泡（空気のウルトラファンバブル）の混入及び溶け込んだバブル水（一次バブル水）となる。 When the air-mixed water is injected from the first inflow throttle hole 27 to the gas-liquid inflow hole 26, the outlet side of the first inflow throttle hole 27 (gas-liquid inflow hole 26 side) becomes a negative pressure state.
By setting the outlet side of the first inflow throttle hole 27 to a negative pressure state, the high-pressure and turbulent aerated water (water, air) jetted from the first inflow throttle hole 27 to the gas-liquid inflow hole 26 is 1. When passing through the outlet of the inflow throttle hole 27, air bubbles are deposited due to reduced pressure, and the air (gas) in water (in the liquid) is pulverized (sheared) by turbulent flow, resulting in micro-unit bubbles (air microbubbles) and It becomes bubble water (primary bubble water) mixed with and dissolved in nano-unit air bubbles (ultrafan bubbles of air).

一次バブル水は、図７に示すように、第１流入絞り穴２７を流れて、第１流入絞り穴２７から気液流入穴２６（気液貯留流入穴）に噴射される。
気液流入穴２６に噴射された一次バブル水（バブル水）は、図７乃至図９に示すように、気液流入穴２６を流れて、第１及び第２液体導入穴５１，５２（バブル発生器Ｚ）に流入される。一次バブル水は、気液流入穴２６によって流れ筒体１の筒中心線ａの方向Ａに向かう流れに整流されつつ、液体閉塞板４６の板裏面４６Ｂ（バブル発生器Ｚ）に向けて気液流入穴２６を流れる。気液流入穴２６を流れる一次バブル水は、図９に示すように、液体閉塞板４６の板裏面４６Ｂに沿って流れて、第１及び第２液体導入穴５１，５２に流入する。また、気液流入穴２６を流れる一次バブル水は、直接、第１及び第２液体導入穴５１，５２に流入する。
気液流入穴２６（流入路８）を流れる一次バブル水（液体）は、液体閉塞板４６の板裏面４６Ｂによって第１及び第２液体導入穴５１，５２に案内されて、第１及び第２液体導入穴５１，５２内に流入される。気液流入穴２６（流入路８）を流れる一次バブル水（液体）は、気液流入穴２６（流入路８）から直接、第１及び第２液体導入穴５１，５２に流入される。
これにより、一次バブル水（液体）を、第１及び第２液体導入穴５１，５２（各液体導入穴）から第１及び第２液体流路δ１，δ２（各液体流路）に連続して流入でき、常に、安定した流量（一定流量）の一次バブル水（液体）を第１及び第２液体流路δ１，δ２（液体流路）に流入できる。 As shown in FIG. 7, the primary bubble water flows through the first inflow throttle hole 27 and is jetted from the first inflow throttle hole 27 to the gas-liquid inflow hole 26 (gas-liquid storage inflow hole).
As shown in FIGS. 7 to 9, the primary bubble water (bubble water) injected into the gas-liquid inflow hole 26 flows through the gas-liquid inflow hole 26 and enters the first and second liquid introduction holes 51 and 52 (bubble water). into the generator Z). The primary bubble water is rectified by the gas-liquid inflow hole 26 into a flow toward the direction A of the tube center line a of the flow tube 1, and flows toward the back surface 46B (bubble generator Z) of the liquid blocking plate 46. It flows through the inflow hole 26 . The primary bubble water flowing through the gas-liquid inflow hole 26 flows along the back surface 46B of the liquid blocking plate 46 and flows into the first and second liquid introduction holes 51 and 52, as shown in FIG. Also, the primary bubble water flowing through the gas-liquid inflow hole 26 directly flows into the first and second liquid introduction holes 51 and 52 .
The primary bubble water (liquid) flowing through the gas-liquid inflow hole 26 (inflow path 8) is guided by the back surface 46B of the liquid blocking plate 46 to the first and second liquid introduction holes 51, 52, and It flows into the liquid introduction holes 51 and 52 . The primary bubble water (liquid) flowing through the gas-liquid inflow hole 26 (inflow path 8) directly flows into the first and second liquid introduction holes 51 and 52 from the gas-liquid inflow hole 26 (inflow path 8).
As a result, the primary bubble water (liquid) is continuously supplied from the first and second liquid introduction holes 51 and 52 (each liquid introduction hole) to the first and second liquid flow paths δ1 and δ2 (each liquid flow path). A stable flow rate (constant flow rate) of primary bubble water (liquid) can always flow into the first and second liquid channels δ1 and δ2 (liquid channels).

第１及び第２液体導入穴５１，５２に流入した一次バブル水（バブル水）は、図９及び図１０に示すように、第１及び第２液体導入穴５１，５２内の第１及び第２渦巻き面５５，５６の一方の渦巻き面端５５Ａ，５６Ａから直接、第１及び第２液体流路δ１，δ２に流入する。 The primary bubble water (bubble water) that has flowed into the first and second liquid introduction holes 51 and 52 flows into the first and second liquid introduction holes 51 and 52 as shown in FIGS. From one spiral surface end 55A, 56A of the two spiral surfaces 55, 56, the liquid directly flows into the first and second liquid flow paths δ1, δ2.

第１及び第２液体流路δ１，δ２に流入した一次バブル水（バブル水）は、図９及び図１０に示すように、渦巻き状の第１及び第２液体流路δ１，δ２を流れて、ノズル穴３５に噴射（噴出）され、更に、ノズル穴３５を通って、ノズル穴３５（噴射ノズルＹ）から流出路１０に噴射される。
一次バブル水（水及び空気）は、液体ガイドコア４７の円錐底面４７Ｂ（第１及び第２渦巻き面５５，５６の一方の渦巻き面端５５Ａ，５６Ａ）から円錐上面４７Ａに向かって第１及び第２液体流路δ１，δ２を流れるに従って、徐々に流速を高め、及び徐々に減圧されて、ノズル穴３５から流出路１０（流出穴）に噴射される。
これにより、ノズル穴３５に噴射されたバブル水は、図７乃至図９に示すように、流出路１０内のノズル穴３５側で高圧の乱流（渦流、旋回流）となる。
渦巻き状の第１及び第２液体流路δ１，δ２は、液体ガイドコア４７の円錐中心線ＬＸ回りの渦流（液体絞り穴４１、ノズル穴３５の穴中心線回りの渦流）を流出路１０（流出穴）に形成（発生）する。 The primary bubble water (bubble water) that has flowed into the first and second liquid flow paths δ1 and δ2 flows through the first and second spiral liquid flow paths δ1 and δ2 as shown in FIGS. , is jetted (jetted) into the nozzle hole 35 , and further passed through the nozzle hole 35 and jetted from the nozzle hole 35 (injection nozzle Y) to the outflow path 10 .
Primary bubble water (water and air) flows from the conical bottom surface 47B (one spiral surface end 55A, 56A of the first and second spiral surfaces 55, 56) of the liquid guide core 47 toward the conical upper surface 47A. As the liquid flows through the two liquid flow paths δ1 and δ2, the flow velocity is gradually increased and the pressure is gradually reduced, and the liquid is jetted from the nozzle hole 35 to the outflow path 10 (outflow hole).
As a result, the bubbled water injected into the nozzle hole 35 becomes a high-pressure turbulent flow (swirling flow) on the side of the nozzle hole 35 in the outflow passage 10, as shown in FIGS.
The spiral first and second liquid flow paths δ1 and δ2 cause eddy currents around the center line LX of the cone of the liquid guide core 47 (eddy currents around the center lines of the liquid throttle hole 41 and the nozzle hole 35) to the outflow channel 10 ( outflow holes).

ノズル穴３５から流出路１０（流出穴）にバブル水を噴射すると、図９に示すように、ノズル穴３５の出口側（ノズル穴３５の流出路１０側）で負圧状態となる。
ノズル穴３５の出口側を負圧状態にすることで、第１及び第２液体流路δ１，δ２からノズル穴３５に噴射された高圧及び乱流の一次バブル水（空気、水）は、ノズル穴３５の出口部分を通過する際、減圧による気泡析出と、水中（液体中）の空気（気体）が乱流により粉砕（剪断）され、一次バブル水より更に、多量のマイクロバブル及びウルトラファインバブルの混入、溶け込んだバブル水（二次バブル水）となる。
二次バブル水（バブル水）は、図７乃至図９に示すように、ノズル穴３５から流出路１０に噴射される。ノズル穴３５は、流入路８から流入されるバブル水（液体）を流出路１０に噴射（噴出）する。ノズル穴３５は、渦流（旋回流）の二次バブル水を流出路１に噴射（噴出）する。 When bubbled water is jetted from the nozzle hole 35 to the outflow path 10 (outflow hole), as shown in FIG. 9, the outlet side of the nozzle hole 35 (the outflow path 10 side of the nozzle hole 35) becomes a negative pressure state.
By setting the outlet side of the nozzle hole 35 to a negative pressure state, the high-pressure and turbulent primary bubble water (air, water) jetted from the first and second liquid flow paths δ1 and δ2 into the nozzle hole 35 is When passing through the exit part of the hole 35, air bubbles are deposited by decompression, and the air (gas) in the water (in the liquid) is pulverized (sheared) by turbulent flow, resulting in a larger amount of microbubbles and ultra-fine bubbles than the primary bubble water. is mixed and melted into bubble water (secondary bubble water).
The secondary bubble water (bubble water) is jetted from the nozzle hole 35 to the outflow passage 10 as shown in FIGS. 7 to 9 . The nozzle hole 35 injects (jets) the bubble water (liquid) flowing from the inflow path 8 to the outflow path 10 . The nozzle hole 35 injects (spouts) secondary bubble water in a swirl flow (swirling flow) into the outflow passage 1 .

二次バブル水は、図７に示すように、渦流（旋回流）にて乱流となり、流出路１０を流れる。二次バブル水中（液体中）の気泡は、渦流の乱流によって、二次バブル水より更に、多量のマイクロバブル及びウルトラファインバブルに粉砕（剪断）されて、多量のマイクロバブル及びウルトラファインバブルの混入、溶け込んだ三次バブル水（バブル水）となって、流出路１０を流れる。流出路１０（流出穴）を流れる三次バブル水（バブル水）は、流出口１１から流出される。 The secondary bubble water, as shown in FIG. The bubbles in the secondary bubble water (in the liquid) are pulverized (sheared) into a larger amount of microbubbles and ultra-fine bubbles than the secondary bubble water by the turbulent flow of the eddy current, resulting in a large amount of micro-bubbles and ultra-fine bubbles. The mixed and dissolved tertiary bubble water (bubble water) flows through the outflow path 10 . The tertiary bubble water (bubble water) flowing through the outflow path 10 (outflow hole) is discharged from the outflow port 11 .

バブル発生装置Ｘ（バブル発生器Ｙ）は、気体導入管２（一方の管端２Ａ）から水素を流入路８（第１流入絞り穴２７）に噴射して良い。
バブル発生装置Ｘ（バブル発生器Ｙ）において、気体導入管２の他方の管端２Ｂに水素供給源を接続する。水素供給源から供給される水素（気体）は、気体導入管２、継手管１５、及び気体導入穴１２を通して、気体導入穴１２から流入路８（第１流入絞り穴２７）に噴射する。 The bubble generator X (bubble generator Y) may inject hydrogen from the gas introduction pipe 2 (one pipe end 2A) into the inflow passage 8 (first inflow throttle hole 27).
A hydrogen supply source is connected to the other pipe end 2B of the gas introduction pipe 2 in the bubble generator X (bubble generator Y). Hydrogen (gas) supplied from the hydrogen supply source passes through the gas introduction pipe 2 , the joint pipe 15 , and the gas introduction hole 12 and is injected from the gas introduction hole 12 into the inflow passage 8 (first inflow throttle hole 27 ).

本発明は、マイクロ単位（マイクロバブル）、及びナノ単位（ウルトラファインバブル）を液体に混入、溶け込ませるのに最適できる。 The present invention is suitable for mixing and dissolving micro units (microbubbles) and nano units (ultrafine bubbles) in liquids.

Ｘ バブル発生装置
Ｙ 噴射ノズル
Ｚ バブル発生器
１ 流れ筒体
８ 流入路（流入穴）
９ 流入口
１０ 流出路（流出穴）
１１ 流出口
１９ ノズル本体（ノズル閉塞部）
３５ ノズル穴
４１ 液体絞り穴
４１Ａ 円錐内周面
４５ 液体ガイド
４６ 液体閉塞板
４６Ａ 板表面
４６Ｂ 板裏面
４７ 液体ガイドコア
４７Ａ 円錐上面
４７Ｂ 円錐底面（円錐底平面）
４７Ｃ 円錐側面
５１ 第１液体導入穴（液体導入穴）
５２ 第２液体導入穴（液体導入穴）
５５ 第１渦巻き面（渦巻き面）
５５Ａ 一方の渦巻き面端（第１渦巻き面）
５６ 第２渦巻き面（渦巻き面）
５６Ａ 一方の渦巻き面端（第２渦巻き面）
δ１ 第１液体流路（液体流路）
δ２ 第２液体流路（液体流路） X Bubble generator Y Injection nozzle Z Bubble generator 1 Flow cylinder 8 Inflow path (inflow hole)
9 inflow port 10 outflow path (outflow hole)
11 outflow port 19 nozzle body (nozzle blocking part)
35 Nozzle hole 41 Liquid throttle hole 41A Conical inner peripheral surface 45 Liquid guide 46 Liquid blocking plate 46A Plate surface 46B Plate rear surface 47 Liquid guide core 47A Conical upper surface 47B Conical bottom surface (conical bottom plane)
47C conical side 51 first liquid introduction hole (liquid introduction hole)
52 second liquid introduction hole (liquid introduction hole)
55 first spiral surface (spiral surface)
55A One spiral surface end (first spiral surface)
56 second spiral surface (spiral surface)
56A One spiral surface end (second spiral surface)
δ1 first liquid channel (liquid channel)
δ2 second liquid channel (liquid channel)

Claims (4)

流入路、流出路、前記流入路に開口する流入口及び前記流出路に開口する流出口を有し、液体が前記流入口から前記流入路に流入され、前記流出路を流れる液体を前記流出口から流出する流れ筒体と、
前記流入路及び前記流出路の間の前記流れ筒体内に配置され、前記流入路を前記流出路から閉塞するノズル本体、及び前記ノズル本体に形成され、前記流入路から流入される液体を前記流出路に噴射するノズル穴を有する噴射ノズルと、
前記噴射ノズルに配置されるバブル発生器と、を備え、
前記バブル発生器は、
前記ノズル本体に形成され、前記流入路及び前記ノズル穴に連通される液体絞り穴と、
板状に形成される液体閉塞板、及び円錐渦巻き状に形成される液体ガイドコアを有する液体ガイドと、を備え、
前記液体絞り穴は、
前記流入路側から縮径しつつ延在される円錐穴に形成され、
前記液体閉塞板は、
前記液体閉塞板を貫通して、前記液体閉塞板の板表面及び板裏面に開口される複数の液体導入穴を有し、
前記液体ガイドコアは、
同一の渦巻き状に形成される前記液体導入穴と同数の渦巻き面を有し、
前記液体ガイドコアの円錐底面を前記液体閉塞板の前記板表面に当接して、前記液体閉塞板と一体にされ、
前記各渦巻き面は、
前記液体ガイドコアの円錐側面に交差して、前記液体ガイドコアの前記円錐底面及び円錐上面の間に配置され、
前記円錐底面から前記円錐上面に向けて縮径しつつ渦巻き状に形成され、
前記円錐底面側の渦巻き面端を前記各液体導入穴内に突出して配置され、
前記液体ガイドは、
前記液体ガイドコアを前記流入路側から前記液体絞り穴に挿入し、前記液体閉塞板の前記板表面を前記流入路側から前記ノズル本体に当接して前記液体絞り穴を閉塞し、
前記円錐側面及び前記液体絞り穴の円錐内周面の間に隙間を隔てて、前記液体ガイドコアを前記円錐上面から前記液体絞り穴内に挿入し、
前記液体ガイドコアの前記各渦巻き面、及び前記液体絞り穴の前記円錐内周面の間に、渦巻き状の複数の液体流路を形成しつつ前記液体ガイドコアを前記液体絞り穴内に装着して、前記ノズル本体に配置され、
前記各液体流路は、
前記ノズル穴に開口され、
前記各渦巻き面の前記渦巻き面端から前記各液体導入穴に開口され、及び前記各液体導入穴を通して前記流入路に連通される
ことを特徴とするバブル発生装置。 an inflow path, an outflow path, an inflow opening to the inflow path, and an outflow opening to the outflow path, wherein liquid flows into the inflow path from the inflow opening and flows through the outflow path to the outflow opening; a flow cylinder flowing out of the
a nozzle body disposed in the flow cylinder between the inflow path and the outflow path and blocking the inflow path from the outflow path; an injection nozzle having a nozzle hole for injecting into the passage;
a bubble generator disposed on the injection nozzle;
The bubble generator is
a liquid throttle hole formed in the nozzle body and communicating with the inflow passage and the nozzle hole;
a liquid blocking plate formed in a plate shape, and a liquid guide having a liquid guide core formed in a conical spiral,
The liquid throttle hole is
Formed in a conical hole extending from the inflow passage side while decreasing in diameter,
The liquid blocking plate is
having a plurality of liquid introduction holes penetrating through the liquid blockage plate and opening on the plate surface and the plate back surface of the liquid blockage plate;
The liquid guide core is
having the same number of spiral surfaces as the liquid introduction holes formed in the same spiral shape,
The conical bottom surface of the liquid guide core is brought into contact with the plate surface of the liquid clogging plate so as to be integrated with the liquid clogging plate,
Each of the spiral surfaces,
disposed between the conical bottom surface and the conical top surface of the liquid guide core, intersecting the conical side surface of the liquid guide core;
Formed in a spiral while decreasing in diameter from the bottom surface of the cone toward the top surface of the cone,
The end of the spiral surface on the side of the conical bottom surface is arranged so as to protrude into each of the liquid introduction holes,
The liquid guide is
inserting the liquid guide core into the liquid throttle hole from the inflow path side, and closing the liquid throttle hole by abutting the plate surface of the liquid blocking plate against the nozzle body from the inflow path side;
inserting the liquid guide core into the liquid throttle hole from the conical upper surface with a gap between the conical side surface and the conical inner peripheral surface of the liquid throttle hole;
A plurality of spiral liquid flow paths are formed between the spiral surfaces of the liquid guide core and the conical inner peripheral surface of the liquid throttle hole, and the liquid guide core is mounted in the liquid throttle hole. , disposed on the nozzle body,
each of the liquid flow paths,
opened in the nozzle hole,
The bubble generating device is characterized in that the spiral face end of each spiral face opens into each of the liquid introduction holes and communicates with the inflow path through each of the liquid introduction holes. 前記流れ筒体の前記流入路に接続される気体導入管と、
前記気体導入管に配置される逆止弁と、を備え、
前記気体導入管は、
一方の管端を前記流入路に連通し、及び他方の管端から気体が流入され、
前記逆止弁は、
前記気体導入管の一方の管端側への流れを許容し、他方の管端側への流れを阻止する
ことを特徴とする請求項１に記載のバブル発生装置。 a gas introduction pipe connected to the inflow path of the flow cylinder;
a check valve arranged in the gas introduction pipe,
The gas introduction pipe is
One pipe end is communicated with the inflow passage, and gas is flowed in from the other pipe end,
The check valve is
2. The bubble generator according to claim 1, wherein the gas introduction pipe allows a flow to one pipe end side and blocks a flow to the other pipe end side. 前記流入路は、
前記液体絞り穴及び前記流入口の間に配置され、前記液体絞り穴から拡径される気液流入穴と、
前記気液流入穴及び前記流出口の間に配置され、前記気液流入穴から縮径される第１流入絞り穴と、
前記第１流入絞り穴及び前記流出口の間に配置され、前記第１流入絞り穴から縮径され、液体が前記流入口から流入される第２流入絞り穴と、を有し、
前記気体導入管は、
一方の管端を前記第１流入絞り穴に連通して、前記流入路に接続される
ことを特徴とする請求項２に記載のバブル発生装置。 The inflow path is
a gas-liquid inflow hole disposed between the liquid throttle hole and the inlet and having a diameter enlarged from the liquid throttle hole;
a first inflow throttle hole disposed between the gas/liquid inflow hole and the outflow port and having a reduced diameter from the gas/liquid inflow hole;
a second inflow throttle hole disposed between the first inflow throttle hole and the outflow port, the diameter of the second inflow throttle hole being reduced from the first inflow throttle hole, and liquid flowing in from the inflow port;
The gas introduction pipe is
3. The bubble generator according to claim 2, wherein one pipe end communicates with the first inflow throttle hole and is connected to the inflow path. ノズル本体、及び前記ノズル本体に形成され、流入路から流入される液体を噴射するノズル穴を有する噴射ノズルに配置されるバブル発生器であって、
前記ノズル本体に形成され、前記流入路及び前記ノズル穴に連通される液体絞り穴と、
板状に形成される液体閉塞板、及び円錐渦巻き状に形成される液体ガイドコアを有する液体ガイドと、を備え、
前記液体絞り穴は、
前記流入路側から縮径しつつ延在される円錐穴に形成され、
前記液体閉塞板は、
前記液体閉塞板を貫通して、前記液体閉塞板の板表面及び板裏面に開口される複数の液体導入穴を有し、
前記液体ガイドコアは、
同一の渦巻き状に形成される前記液体導入穴と同数の渦巻き面を有し、
前記液体ガイドコアの円錐底面を前記液体閉塞板の前記板表面に当接して、前記液体閉塞板と一体にされ、
前記各渦巻き面は、
前記液体ガイドコアの円錐側面に交差して、前記液体ガイドコアの前記円錐底面及び円錐上面の間に配置され、
前記円錐底面から前記円錐上面に向けて縮径しつつ渦巻き状に形成され、
前記円錐底面側の渦巻き面端を前記各液体導入穴内に突出して配置され、
前記液体ガイドは、
前記液体ガイドコアを前記流入路側から前記液体絞り穴に挿入し、及び前記液体閉塞板の板表面を前記流入路側から前記ノズル本体に当接して前記液体絞り穴を閉塞し、
前記円錐側面及び前記液体絞り穴の円錐内周面の間に隙間を隔てて、前記液体ガイドコアを前記円錐上面から前記液体絞り穴内に挿入し、
前記各渦巻き面及び前記液体絞り穴の円錐内周面の間に、渦巻き状の複数の液体流路を形成しつつ前記液体ガイドコアを前記液体絞り穴内に装着して、前記ノズル本体に配置され、
前記各液体流路は、
前記ノズル穴に開口され、
前記各渦巻き面の前記渦巻き面端から前記各液体導入穴に開口され、及び前記各液体導入穴を通して前記流入路に連通される
ことを特徴とするバブル発生器。 A bubble generator arranged in an injection nozzle having a nozzle body and a nozzle hole formed in the nozzle body for injecting a liquid flowing in from an inflow passage,
a liquid throttle hole formed in the nozzle body and communicating with the inflow passage and the nozzle hole;
a liquid blocking plate formed in a plate shape, and a liquid guide having a liquid guide core formed in a conical spiral,
The liquid throttle hole is
Formed in a conical hole extending from the inflow passage side while decreasing in diameter,
The liquid blocking plate is
having a plurality of liquid introduction holes penetrating through the liquid blockage plate and opening on the plate surface and the plate back surface of the liquid blockage plate;
The liquid guide core is
having the same number of spiral surfaces as the liquid introduction holes formed in the same spiral shape,
The conical bottom surface of the liquid guide core is brought into contact with the plate surface of the liquid clogging plate so as to be integrated with the liquid clogging plate,
Each of the spiral surfaces,
disposed between the conical bottom surface and the conical top surface of the liquid guide core, intersecting the conical side surface of the liquid guide core;
Formed in a spiral while decreasing in diameter from the bottom surface of the cone toward the top surface of the cone,
The end of the spiral surface on the side of the conical bottom surface is arranged so as to protrude into each of the liquid introduction holes,
The liquid guide is
inserting the liquid guide core into the liquid throttle hole from the inflow path side, and closing the liquid throttle hole by abutting the plate surface of the liquid blocking plate against the nozzle body from the inflow path side;
inserting the liquid guide core into the liquid throttle hole from the conical upper surface with a gap between the conical side surface and the conical inner peripheral surface of the liquid throttle hole;
A plurality of spiral liquid flow paths are formed between each of the spiral surfaces and the conical inner peripheral surface of the liquid throttle hole, and the liquid guide core is mounted in the liquid throttle hole and arranged in the nozzle body. ,
each of the liquid flow paths,
opened in the nozzle hole,
The bubble generator is characterized in that the spiral surface ends of the spiral surfaces are opened to the respective liquid introduction holes, and communicated with the inflow passages through the respective liquid introduction holes.
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