JP7012482B2 - Fine bubble water generator - Google Patents

Fine bubble water generator Download PDF

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JP7012482B2
JP7012482B2 JP2017149898A JP2017149898A JP7012482B2 JP 7012482 B2 JP7012482 B2 JP 7012482B2 JP 2017149898 A JP2017149898 A JP 2017149898A JP 2017149898 A JP2017149898 A JP 2017149898A JP 7012482 B2 JP7012482 B2 JP 7012482B2
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water
fine bubble
intake
main body
tap water
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JP2019025451A (en
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正志 伊藤
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Fuji Keiki KK
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Fuji Keiki KK
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Priority to CN201711010426.5A priority patent/CN109382013B/en
Priority to KR1020170142386A priority patent/KR20190014443A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/70—Spray-mixers, e.g. for mixing intersecting sheets of material
    • B01F25/72—Spray-mixers, e.g. for mixing intersecting sheets of material with nozzles
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices
    • E03C1/084—Jet regulators with aerating means
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/04—Water-basin installations specially adapted to wash-basins or baths
    • E03C1/0404—Constructional or functional features of the spout
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/305—Treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/26—Reducing the size of particles, liquid droplets or bubbles, e.g. by crushing, grinding, spraying, creation of microbubbles or nanobubbles
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00—Location of water treatment or water treatment device
    • C02F2307/12—Location of water treatment or water treatment device as part of household appliances such as dishwashers, laundry washing machines or vacuum cleaners
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C2201/00—Details, devices or methods not otherwise provided for
    • E03C2201/40—Arrangement of water treatment devices in domestic plumbing installations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/50—Hydropower in dwellings

Description

本発明は、水に微細気泡を含ませる微細気泡水生成器に関し、一般の家庭で用いられて、家庭用の水道水を使用する機器や設備に簡単に取り付けることのできる微細気泡水生成器に関する。 The present invention relates to a fine bubble water generator that contains fine bubbles in water, and the present invention relates to a fine bubble water generator that is used in ordinary households and can be easily attached to equipment or equipment that uses tap water for home use. ..

微細気泡とは、気泡の直径がおよそ１００μｍ以下のマイクロバブルやナノバブル（直径５０～５００ｎｍ程度）のことであり、毛穴よりも微小な小さな水泡が毛穴や汗腺の汚れ、繊維組織間の隙間等に入り込んでいる汚れを効果的に除去することができ、近年急速に、特に美容や健康の分野において利用されてきている。 Microbubbles are microbubbles or nanobubbles (diameter about 50 to 500 nm) whose diameter is about 100 μm or less, and small water bubbles smaller than pores are used for dirt on pores and sweat glands, gaps between fiber tissues, etc. It can effectively remove invading stains and has been rapidly used in recent years, especially in the fields of beauty and health.

また、微細気泡の電気的作用による洗浄効果も注目されてきている。微細気泡の表面には通常、マイナスの電荷が帯電しており、気泡同士が合体することなく、微細気泡水中に拡散・浮遊している。これに対し、油や皮脂、細かい異物等による汚れは通常プラスに帯電して、マイナスの電荷を帯びた被洗浄物と電気的に結合している。よって、マイナスの電荷を帯びている微細気泡がプラス電荷の汚れに吸着すると電気的に中和されて、汚れを被洗浄物から分離しやすい状態となる。 In addition, the cleaning effect due to the electric action of fine bubbles has also attracted attention. The surface of the fine bubbles is usually charged with a negative charge, and the bubbles do not coalesce with each other and diffuse and float in the water of the fine bubbles. On the other hand, dirt caused by oil, sebum, fine foreign matter, etc. is usually positively charged and electrically bonded to the negatively charged object to be cleaned. Therefore, when the negatively charged fine bubbles are adsorbed on the positively charged dirt, they are electrically neutralized, and the dirt is easily separated from the object to be cleaned.

そして、電気的に中和されて被洗浄物から分離した汚れは、微細気泡の気液界面に吸着したまま気泡の浮力によって水面に浮上することで、被洗浄物から除去された汚れが微細気泡水中で再び被洗浄物に付着されることなく、洗浄されることになる。 Then, the dirt that is electrically neutralized and separated from the object to be cleaned floats on the water surface by the buoyancy of the bubbles while being adsorbed on the gas-liquid interface of the fine bubbles, so that the dirt removed from the object to be cleaned becomes fine bubbles. It will be washed in water without adhering to the object to be washed again.

このような微細気泡を多く含有する水を発生するには、高速せん断方式、加圧圧壊方式、キャビテーション方式などが知られているが、その多くが、アスピレータ方式などで、外部から空気を吸引している。或いは、強制注入している。その一つとして、加速手段にて加速される液体、及び気液混合手段によりケーシングに導入される気体（直径が数ミリ程度の気泡）から成る混合流体をケーシング内でキャビテーションを起こさせて、マイクロバブルを発生するマイクロバブル発生装置が知られている（例えば、特許文献１を参照）。 High-speed shearing method, pressure crushing method, cavitation method, etc. are known to generate water containing a large amount of such fine bubbles, but most of them use the aspirator method, etc. to suck air from the outside. ing. Alternatively, it is forcibly injected. As one of them, a mixed fluid consisting of a liquid accelerated by the accelerating means and a gas (bubbles having a diameter of about several millimeters) introduced into the casing by the gas-liquid mixing means is cavitationized in the casing to cause micro-bubbles. Microbubble generators that generate bubbles are known (see, for example, Patent Document 1).

また、外部から空気を吸入することなしに、水の中に溶融しているいわゆる溶存空気からキャビテーション方式によってマイクロバブルを発生させる方式としては、入口から出口に向かいその中心軸に直交する断面積を漸減する通水用入口側の第１ノズルと、第１ノズルの出口から連通して設けられた連通路を介して連続して配設され、入口から出口に向かってその中心軸に直交する断面積を漸増する通水用出口側の第２ノズルと、前記連通路にのみ開口した隙間又は側室とを有するマイクロバブル発生装置が知られている（例えば、特許文献２を参照）。 In addition, as a method of generating microbubbles from the so-called dissolved air melted in water by the cavitation method without sucking air from the outside, the cross-sectional area perpendicular to the central axis from the inlet to the outlet is used. A first nozzle on the inlet side for water flow that gradually decreases, and a disconnection that is continuously arranged via a communication passage provided through communication from the outlet of the first nozzle and orthogonal to the central axis from the inlet to the outlet. A microbubble generator having a second nozzle on the water outlet side that gradually increases the area and a gap or a side chamber opened only in the communication passage is known (see, for example, Patent Document 2).

そして、水の中の溶存空気からキャビテーション方式によってマイクロバブルを発生させる方式のマイクロバブル発生器を美容や健康面での効果に応用したものとしては、シャワーヘッドが知られている（例えば、特許文献３を参照）。 A shower head is known as an application of a microbubble generator of a method of generating microbubbles from dissolved air in water by a cavitation method to effects on beauty and health (for example, patent documents). See 3).

また、同様に、溶存空気からキャビテーション方式によってマイクロバブルを発生させる方式のマイクロバブル発生器を洗濯機に応用したものとしては、回転槽内の洗濯物に対してマイクロバブルを噴射する流体噴射装置を備えた洗濯機が知られている（例えば、特許文献４を参照）。 Similarly, as an application of a microbubble generator that generates microbubbles from dissolved air by a cavitation method to a washing machine, a fluid injection device that injects microbubbles into the laundry in the rotating tub is used. A washing machine equipped with the washing machine is known (see, for example, Patent Document 4).

特開２００７－２１３４３号公報Japanese Unexamined Patent Publication No. 2007-21343 特開２００９－１３６８６４号公報Japanese Unexamined Patent Publication No. 2009-136864 特開２０１６－２１９６号公報Japanese Unexamined Patent Publication No. 2016-2196 特開２０１６－２０９３３１号公報Japanese Unexamined Patent Publication No. 2016-209331

しかしながら、特許文献１によるマイクロバブル発生装置は、タンクに貯留した水を加速して行う気液混合は装置が大型化し、水道直結型の簡易なタイプが望まれる家庭用には不向きである。 However, the micro-bubble generator according to Patent Document 1 is not suitable for household use where a simple type directly connected to the water supply is desired because the gas-liquid mixing device for accelerating the water stored in the tank becomes large in size.

また、特許文献２によるマイクロバブル発生装置は、側室を備える連通路で急膨張した水流を第２ノズルで絞りによる減圧するために、使用するのに十分な量の水が供給できなくなることがある。そのため、そのときの水道圧の状況に応じて側室の軸流方向での幅サイズを調整しなければならず、簡単には家庭の風呂のシャワーに取り付けることはできない。 Further, the micro-bubble generator according to Patent Document 2 may not be able to supply a sufficient amount of water to be used because the water flow rapidly expanded in the communication passage provided with the concubine is depressurized by the second nozzle. .. Therefore, it is necessary to adjust the width size of the concubine in the axial flow direction according to the situation of the water pressure at that time, and it cannot be easily attached to the shower of the home bath.

特許文献３や特許文献４は、シャワーヘッドや洗濯機等の機具にマイクロバブル生成器が予め組み込まれており、既存のこうした機具にマイクロバブル発生器を取り付け可能に構成されたものではない。 In Patent Document 3 and Patent Document 4, a micro-bubble generator is preliminarily incorporated in a device such as a shower head or a washing machine, and the micro-bubble generator is not configured to be attachable to such an existing device.

上記点より本発明は、既存のシャワーヘッドや洗濯機等の水道水を使用する機具に容易に取り付け可能な微細気泡水生成器を提供することを目的としている。 From the above points, it is an object of the present invention to provide a fine bubble water generator that can be easily attached to an existing equipment such as a shower head or a washing machine that uses tap water.

上記課題を解決するために、本発明は、専用ホースを通して導入される水道水を使用する機具に取り付ける微細気泡水生成器であって、前記専用ホースからの給水側端部と前記機具への取水側端部との間に接続可能な本体ケースと、前記本体ケース内の水道水の流路に円状に等間隔で穿設された複数流路が設けられた取水プレートと、前記本体ケース内で前記取水プレートの下流に配置されるノズルと、を備え、前記取水プレートに穿設された複数の取水孔は、当該取水プレートの中心線に対して対称的に入水側から出水側に向けて捻じれが生じるように屈曲して傾斜するように形成され、その内面には乱流を発生するための凹凸面を形成され、当該複数の取水孔のごとに、前記水道水の送給圧に対応して前記ノズル側への水道水の供給圧力を調整するためにその開口面積を可変にする絞り機構を備え、前記ノズルは、前記取水プレートを通過して流れる水道水の流れる方向に沿って径が漸次縮小していく第１通水路と、前記第１通水路の出口側に連通して水道水の流れ方向に沿って径が漸次増大していく第２通水路と、を含み、前記第１通水路の長さは、前記第２通水路の長さよりも短く、前記第１通水路における水道水の流れる方向に沿ってその径が縮小していく傾斜角は、前記第２通水路における水道水の流れを広げる傾斜角よりも大きい、ことを特徴とする。 In order to solve the above problems, the present invention is a fine bubble water generator attached to a device that uses tap water introduced through a dedicated hose, and water is taken from the dedicated hose to the water supply side end and the device . A main body case that can be connected between the side ends , an intake plate provided with a plurality of flow paths formed at equal intervals in a circle in the tap water flow path in the main body case, and the inside of the main body case. The water intake plate is provided with a nozzle arranged downstream of the water intake plate, and a plurality of water intake holes bored in the water intake plate are directed from the water inlet side to the water outlet side symmetrically with respect to the center line of the water intake plate. It is formed so as to bend and incline so as to cause twisting, and an uneven surface for generating turbulent flow is formed on the inner surface thereof. Correspondingly, it is provided with a throttle mechanism that makes the opening area variable in order to adjust the supply pressure of tap water to the nozzle side, and the nozzle is provided along the direction of tap water flowing through the intake plate. The first channel whose diameter gradually decreases and the second channel which communicates with the outlet side of the first channel and gradually increases in diameter along the flow direction of tap water are included. The length of the first water passage is shorter than the length of the second water passage, and the inclination angle at which the diameter decreases along the flow direction of tap water in the first water passage is the second water passage. It is characterized by being larger than the angle of inclination that widens the flow of tap water in .

尚、本願において「機具」とは、主に家庭で広く使用されるシャワーヘッド、洗濯機、食器洗浄機等を含む各種の水を使用する機具及び装置を意味する。 In addition, in this application, "equipment" means an equipment and a device using various kinds of water including a shower head, a washing machine, a dishwasher and the like which are widely used mainly at home.

前記第1通水路と前記第２通水路とは、それぞれの最大径部の径寸法は前記第１通水路が大きく、水道水の流れる方向に沿ったそれぞれの長さ寸法は前記第２通水路が大きくなるよう設けることで、水道水は第1通水路で急激に絞られて、第２通水路へ高圧で吹き出されるため、大きな圧力差を生じて効果的にキャビテーション気泡が発生する。 The first waterway and the second waterway have a large diameter of the maximum diameter of each of the first waterway, and the length of each of the two waterways along the flow direction of tap water is the second waterway. By providing the water so as to be large, the tap water is rapidly squeezed in the first water passage and blown out to the second water passage at a high pressure, so that a large pressure difference is generated and cavitation bubbles are effectively generated.

さらに、前記取水プレートの取水プレート厚寸法は直径寸法の少なくとも１／４以上とすることで、水道水は勢いよく第１通水路へ流出し、回転率の高い旋回流が第１通水路内に形成されて、効果的に多数の微細気泡を発生させることができる。このとき、前記取水孔を入口側から出口側に向けて屈曲形成することで、取水孔には捻じれが生じるため、水道水はより回転率の高い旋回流となって第1通水路へ導入される。 Further, by setting the intake plate thickness dimension of the intake plate to be at least 1/4 or more of the diameter dimension, tap water vigorously flows out to the first water passage, and a swirling flow having a high turnover rate enters the first water passage. It can be formed to effectively generate a large number of microbubbles. At this time, by bending the intake hole from the inlet side to the outlet side, the intake hole is twisted, so that the tap water becomes a swirling flow having a higher turnover rate and is introduced into the first water passage. Will be done.

上述したように、前記取水孔の内面には乱流を発生するための凹凸面を形成しているので、水道水が取水孔を通過するときの乱流度が高まり、水道水中の溶存空気が取り出しやすくなるため、キャビテーション気泡が効果的に発生させることを可能としている。 As described above, since the inner surface of the intake hole has an uneven surface for generating turbulence, the degree of turbulence when tap water passes through the intake hole increases, and the dissolved air in the tap water becomes. Since it is easy to take out, it is possible to effectively generate cavitation bubbles.

ある実施例では、前記本体ケースの前記専用ホースとの接続側の端部の外周には、前記専用ホースの前記給水側端部の内周に形成されているメネジと螺合するオネジが形成されている。その場合に、前記専用ホースの前記メネジと螺合するオネジが一端の外周に形成されて、他端の内周には前記本体ケースの前記専用ホースとの接続側の端部の前記オネジと螺合するメネジが形成されている第１アダプタを介して、前記本体ケースの前記専用ホースとの接続側の端部は、前記専用ホースと適宜、接続できて汎用性が向上する。 In one embodiment, an male screw screwed with a female screw formed on the inner circumference of the water supply side end of the dedicated hose is formed on the outer periphery of the end of the main body case on the connection side with the dedicated hose. ing. In that case, a male screw to be screwed with the female screw of the dedicated hose is formed on the outer circumference of one end, and the male screw and the screw at the end of the main body case on the connection side with the dedicated hose are screwed on the inner circumference of the other end. The end of the main body case on the connection side with the dedicated hose can be appropriately connected to the dedicated hose via the first adapter in which the matching female screw is formed, and the versatility is improved.

別の実施例では、前記本体ケースの前記機具の前記取水側端部との接続側の端部は、前記機具の前記取水側端部の外周に形成されたオネジと螺合するメネジが内周に形成されている。その場合に、前記機具の前記オネジと螺合するメネジが一端の内周に形成されて、他端の外周には前記本体ケースの前記機具との接続側の前記メネジと螺合するオネジが形成されている第２アダプタを介して、前記本体ケースの前記機具との接続側の端部は、前記機具と適宜、接続できて汎用性が向上する。 In another embodiment, the end of the main body case on the connection side of the equipment with the water intake side end has a female screw screwed with a male screw formed on the outer periphery of the water intake side end of the equipment. Is formed in. In that case, a female screw to be screwed with the male screw of the equipment is formed on the inner circumference of one end, and a female screw to be screwed with the female screw on the connection side with the equipment of the main body case is formed on the outer circumference of the other end. The end of the main body case on the connection side with the equipment can be appropriately connected to the equipment via the second adapter, and the versatility is improved.

本発明の微細気泡水生成器によれば、取水プレートの取水孔から斜めに放出された水道水は第１通水路の内壁を旋回して流速を上げながら下流へ進み、第２通水路で拡散して機具へと放出されるため、通常の水道水圧の下で、水道水中の溶存空気から効果的にキャビテーション由来の微細気泡が生成される。そして、本発明の微細気泡水生成器は、機具と当該機具の専用ホースとの間に接続することにより、既存の機具を容易に微細気泡水使用機具とすることができる。 According to the fine bubble water generator of the present invention, tap water obliquely discharged from the intake hole of the intake plate swirls the inner wall of the first water passage, advances downstream while increasing the flow velocity, and diffuses in the second water passage. Then, under normal tap water pressure, cavitation-derived fine bubbles are effectively generated from the dissolved air in the tap water. Then, by connecting the fine bubble water generator of the present invention between the device and the dedicated hose of the device, the existing device can be easily turned into a device using fine bubble water.

本発明の第１実施形態に係る微細気泡水生成器の外観斜視図を示す。The external perspective view of the fine bubble water generator which concerns on 1st Embodiment of this invention is shown. 図１の微細気泡水生成器の側断面図を示す。The side sectional view of the fine bubble water generator of FIG. 1 is shown. 取水プレートの平面図と側面図とを示す。The plan view and the side view of the intake plate are shown. 図１に示す微細気泡水生成器をシャワーヘッドに取り付ける説明図を示す。An explanatory diagram showing the attachment of the fine bubble water generator shown in FIG. 1 to the shower head is shown. 微細気泡水生成器をアダプタを用いてシャワーヘッドに取り付ける説明図を示す。An explanatory diagram is shown in which a fine bubble water generator is attached to a shower head using an adapter. ノズル部でのキャビテーション気泡の生成を説明する模式図を示す。A schematic diagram illustrating the generation of cavitation bubbles in the nozzle portion is shown. 本発明の第２実施形態に係る微細気泡水生成器の外観斜視図を示す。The external perspective view of the fine bubble water generator which concerns on 2nd Embodiment of this invention is shown. 図７の微細気泡水生成器の側断面図を示す。The side sectional view of the fine bubble water generator of FIG. 7 is shown. 図７に示す微細気泡水生成器を洗濯機に取り付ける説明図を示す。An explanatory diagram showing the attachment of the fine bubble water generator shown in FIG. 7 to the washing machine is shown. 取水孔に開口面積を可変する開口調節機構を備える取水プレートの外観斜視図を示す。The external perspective view of the intake plate provided with the opening adjustment mechanism which changes the opening area in the intake hole is shown. 開口調整機構によって調整される取水孔の取込口の開口面積の変化を説明する模式図を示す。A schematic diagram illustrating a change in the opening area of the intake port of the intake hole adjusted by the opening adjustment mechanism is shown. 取水孔が屈曲形成された取水プレートの側面図を示す。The side view of the intake plate which the intake hole was bent and formed is shown.

本発明に係わる微細気泡水生成器を取り付ける水道水が供給される家庭用の機具（機械や器具）とは、代表的には洗濯機やシャワーヘッドなどである。 Household equipment (machines and appliances) to which tap water to which the fine bubble water generator according to the present invention is supplied is typically a washing machine, a shower head, or the like.

本発明に係る微細気泡水生成器をシャワーヘッドに取り付ける実施形態を図面を参照して説明する。図１は本発明に係るシャワーヘッド用の微細気泡水生成器１Ａの外観を斜視図で示しており、図１（ａ），（ｂ）は、水道水の流れ方向の上流側及び下流側から見た微細気泡水生成器１Ａの外観を斜視図でそれぞれ示している。 An embodiment in which the fine bubble water generator according to the present invention is attached to a shower head will be described with reference to the drawings. FIG. 1 is a perspective view showing the appearance of the fine bubble water generator 1A for a shower head according to the present invention, and FIGS. 1 (a) and 1 (b) are from the upstream side and the downstream side in the flow direction of tap water. The appearance of the fine bubble water generator 1A seen is shown in a perspective view.

図２は微細気泡水生成器１の構成を側断面図で示し、微細気泡水生成器１Ａは、円筒の本体ケース１０の中に円柱形状のノズル６を配置して構成される。本体ケース１０は断面の径が異なる第１円筒部４と第２円筒部５とから構成されて、ノズル６の外径寸法は第１円筒部４の内径寸法と略等しく、ノズル６は第１円筒部４と嵌合して本体ケース１０内に支持されている。水道水は第１円筒部４から供給されて、ノズル６を通って第２円筒部５へと流れる。 FIG. 2 shows the configuration of the fine bubble water generator 1 in a side sectional view, and the fine bubble water generator 1A is configured by arranging a cylindrical nozzle 6 in a cylindrical main body case 10. The main body case 10 is composed of a first cylindrical portion 4 and a second cylindrical portion 5 having different cross-sectional diameters. The outer diameter dimension of the nozzle 6 is substantially equal to the inner diameter dimension of the first cylindrical portion 4, and the nozzle 6 is the first. It is fitted to the cylindrical portion 4 and supported in the main body case 10. Tap water is supplied from the first cylindrical portion 4 and flows through the nozzle 6 to the second cylindrical portion 5.

円形の取水プレート７は第1円筒部４に嵌め込まれて、本体ケース１０の水道水の流路内に配置されている。取水プレート７は、直径寸法ｄが１３．５ｍｍに対して厚さ寸法ｔを５ｍｍとしているが、この直径寸法ｄと厚さ寸法ｔとの具体的な寸法比については後述する。そして、第１円筒部４の外周には環状のゴムパッキン１２が嵌め込まれている。 The circular intake plate 7 is fitted into the first cylindrical portion 4 and is arranged in the tap water flow path of the main body case 10. The intake plate 7 has a diameter dimension d of 13.5 mm and a thickness dimension t of 5 mm, and a specific dimensional ratio between the diameter dimension d and the thickness dimension t will be described later. An annular rubber packing 12 is fitted on the outer periphery of the first cylindrical portion 4.

取水プレート７は、図３（ａ）に示すように、平面上に等間隔で軸方向に貫通する４個の丸孔の取水孔１１が円状に穿設されて、この取水孔１１は、図３（ｂ）の側面図で示すように、水道水の入口側から出口側に向けての中心軸が取水プレート７の中心軸に対して傾斜するよう設けられている。よって、各取水孔１１は斜円柱の形状に取水プレート７に穿設されている。尚、図３（ｂ）では、取水孔１１の１つだけを代表して示している。 As shown in FIG. 3A, the water intake plate 7 has four round water intake holes 11 penetrating in the axial direction at equal intervals on a plane, and the water intake holes 11 are formed in a circular shape. As shown in the side view of FIG. 3B, the central axis from the inlet side to the outlet side of tap water is provided so as to be inclined with respect to the central axis of the intake plate 7. Therefore, each intake hole 11 is formed in the intake plate 7 in the shape of an oblique cylinder. In addition, in FIG. 3 (b), only one of the intake holes 11 is shown as a representative.

ノズル６は、その外径が第１円筒部４の内径と略等しく、ノズル６の一部が第１円筒部４に挿入された状態で本体ケース１０の中に保持される。ノズル６の内部は、左右の両端から中央部に向けてそれぞれ絞り込まれた形状の通水部８が設けられている。すなわち、通水部８は、その中央部に断面の径が最小となる頸部９が形成されて、頸部９からそれぞれ左右に延びるにしたがい径が大きくなるよう略円錐状に刳り抜かれた構造となっている。よって、通水部８は、水道水の流れる方向に沿って径が漸次縮小する第１通水路８ａと、第１通水路８ａの出口側に連通して設けられ水道水の流れる方向に沿って径が漸次増大する第２通水８ｂとで構成されている。そして、ノズル６の第１通水路８ａの入口側の口径は、第２通水路８ｂの出口側の口径より大きく設定されており、第１通水路８ａと第２通水路８ｂとの軸方向の寸法は第２通水路８ｂより長く設定されている。 The outer diameter of the nozzle 6 is substantially equal to the inner diameter of the first cylindrical portion 4, and the nozzle 6 is held in the main body case 10 in a state where a part of the nozzle 6 is inserted into the first cylindrical portion 4. The inside of the nozzle 6 is provided with a water passage portion 8 having a shape narrowed down from both left and right ends toward the center portion. That is, the water passage portion 8 has a structure in which a neck portion 9 having a minimum cross-sectional diameter is formed in the central portion thereof, and the water passage portion 8 is hollowed out in a substantially conical shape so that the diameter increases as it extends from the neck portion 9 to the left and right. It has become. Therefore, the water passage portion 8 is provided so as to communicate with the first water passage 8a whose diameter gradually decreases along the flow direction of the tap water and the outlet side of the first water passage 8a, and is provided along the flow direction of the tap water. It is composed of a second water passage 8b whose diameter gradually increases. The diameter of the inlet side of the first water passage 8a of the nozzle 6 is set to be larger than the diameter of the outlet side of the second water passage 8b, and is set in the axial direction between the first water passage 8a and the second water passage 8b. The dimensions are set longer than the second channel 8b.

図４は微細気泡水生成器１Ａのシャワーヘッド３への取り付けを示している。第１円筒部４はその外周にシャワーホース２に接続するためのオネジ４ａが形成されて、径の大きい第２円筒部５はその内周にシャワーヘッド３に接続するためのメネジ５ａが形成されている。 FIG. 4 shows the attachment of the fine bubble water generator 1A to the shower head 3. A male screw 4a for connecting to the shower hose 2 is formed on the outer circumference of the first cylindrical portion 4, and a female screw 5a for connecting to the shower head 3 is formed on the inner circumference of the second cylindrical portion 5 having a large diameter. ing.

シャワーホース２は給水側の端部が水と湯とを混合して供給する混合栓１２に接続されて、放水側の端部をシャワーヘッド３と接続するための可撓性を有する専用ホースである。シャワーホース２とシャワーヘッド３との接続は、シャワーホース２の接続部２Ａにシャワーヘッド３の取水側端部を嵌め込み、接続部２Ａの内周に形成されたメネジ２ａと取水側端部の外周に形成されたオネジ３ａとが螺合して連結されている。尚、シャワーホース２を水道水の蛇口に直接接続してシャワーヘッド３から水だけを供給することもあり、この場合の蛇口は、水道配管に直結或いは集合住宅では増圧ポンプや高架水槽を介して接続されている。 The shower hose 2 is a dedicated hose having flexibility for connecting the end on the water supply side to the mixing tap 12 for mixing and supplying water and hot water, and connecting the end on the water discharge side with the shower head 3. be. To connect the shower hose 2 and the shower head 3, the intake side end of the shower head 3 is fitted into the connection portion 2A of the shower hose 2, and the female screw 2a formed on the inner circumference of the connection portion 2A and the outer periphery of the intake side end are formed. The male screw 3a formed in the above is screwed and connected. The shower hose 2 may be directly connected to the tap water faucet to supply only water from the shower head 3. In this case, the faucet is directly connected to the water pipe or via a booster pump or an elevated water tank in an apartment house. Is connected.

微細気泡水生成器１をシャワーヘッド３に取り付ける際には、シャワーホース２とシャワーヘッド３と分離して、第１円筒部４のオネジ４ａとシャワーホース２の接続部２Ａのメネジ２ａとを螺合させ、第２円筒部５のメネジ５ａとシャワーヘッド３のオネジ３ａとを螺合させて、シャワーホース２とシャワーヘッド３との間に微細気泡水生成器１を配置して固定する。 When attaching the fine bubble water generator 1 to the shower head 3, the shower hose 2 and the shower head 3 are separated, and the male screw 4a of the first cylindrical portion 4 and the female screw 2a of the connection portion 2A of the shower hose 2 are screwed. The female screw 5a of the second cylindrical portion 5 and the male screw 3a of the shower head 3 are screwed together, and the fine bubble water generator 1 is arranged and fixed between the shower hose 2 and the shower head 3.

シャワーホース２とシャワーヘッド３とは分離可能であるが、通常は接続された状態で一つの製品で取り扱われているため、シャワーホース２の接続部２Ａの外径寸法及びシャワーヘッド３の根元部の内径寸法は製品種類又はメーカーによって異なる。したがって、シャワーホース２とシャワーヘッド３とを分離して、その間に微細気泡水生成器１を取り付けるには、規格の寸法が合わない場合には、適宜、図５に示すように、シャワーホース２の接続部２Ａのメネジ２ａと螺合するオネジ１４ａが一端の外周に形成されて、他端の内周には第１円筒部４のオネジ４ａと螺合するメネジ１４ｂが形成されている第１アダプタ１４と、シャワーヘッド３のオネジ３ａと螺合するメネジ１５ａが一端の内周に形成されて、他端の外周には第２円筒部５のメネジ５ａと螺合するオネジ１５ｂが形成されている第２アダプタ１５を用いることになる。 Although the shower hose 2 and the shower head 3 can be separated from each other, they are usually handled as one product in a connected state, so that the outer diameter of the connection portion 2A of the shower hose 2 and the base portion of the shower head 3 are separated. The inner diameter of the hose varies depending on the product type or manufacturer. Therefore, in order to separate the shower hose 2 and the shower head 3 and attach the fine bubble water generator 1 between them, if the standard dimensions do not match, the shower hose 2 is appropriately shown in FIG. A male screw 14a screwed with the female screw 2a of the connecting portion 2A is formed on the outer periphery of one end, and a female screw 14b screwed with the female screw 4a of the first cylindrical portion 4 is formed on the inner circumference of the other end. The adapter 14 and the female screw 15a screwed with the male screw 3a of the shower head 3 are formed on the inner circumference of one end, and the male screw 15b screwed with the female screw 5a of the second cylindrical portion 5 is formed on the outer periphery of the other end. The second adapter 15 is used.

上記構成の微細気泡水生成器１Ａにおける微細気泡水生成の作用について説明する。混合栓１２から微細気泡水生成器１へ供給される水道水は、先ず取水プレート７の各取水孔１１を通過するが、水道水は斜円柱の形状の取水孔１１を通過することで、取水プレート７の中心軸線方向からは外れて斜めの方向へ流出していく。 The action of producing fine bubble water in the fine bubble water generator 1A having the above configuration will be described. The tap water supplied from the mixing tap 12 to the fine bubble water generator 1 first passes through each intake hole 11 of the intake plate 7, but the tap water passes through the intake hole 11 in the shape of an oblique cylinder to take in water. It deviates from the central axis direction of the plate 7 and flows out in an oblique direction.

これにより、取水孔１１を通過した後の水道水は、第１通水路８ａの内壁に斜めから突き当たるため、図６に模式的に示すように螺旋状に旋回しながら頸部９へ進む。そして、第１通水路８ａは絞った構造であるため、頸部９に向けて近づくほど速度を上げ、頸部９から第２通水路８ｂへ放出される。 As a result, the tap water after passing through the intake hole 11 abuts diagonally on the inner wall of the first water passage 8a, and therefore proceeds to the neck 9 while spirally swirling as shown schematically in FIG. Since the first water passage 8a has a narrowed structure, the speed is increased as it approaches the neck 9, and the water is discharged from the neck 9 to the second water passage 8b.

こうして速度を増した水道水は、頸部９から高圧で吹き出されて、第２通水路８ｂ内で拡散される。これによって急激な圧力低下が生じて、沸騰現象により水道水中には無数の微細なキャビテーション気泡が第２通水路８ｂ内に発生して、シャワーヘッド３を通って外部へ噴射される。このとき、ノズル６の第１通水路８ａの入口側の口径が第２通水路８ｂの出口側の口径より大きく、且つ第１通水路８ａと第２通水路８ｂとの軸方向の寸法は第２通水路８ｂより短いと、水道水は急激に絞られることでより高圧で吹き出されるため、大きな圧力差を生じて効果的にキャビテーション気泡が発生する。 The tap water thus increased in speed is blown out from the neck 9 at a high pressure and diffused in the second water passage 8b. As a result, a sudden drop in pressure occurs, and innumerable fine cavitation bubbles are generated in the second water passage 8b due to the boiling phenomenon and are ejected to the outside through the shower head 3. At this time, the diameter of the inlet side of the first water passage 8a of the nozzle 6 is larger than the diameter of the outlet side of the second water passage 8b, and the axial dimension of the first water passage 8a and the second water passage 8b is the first. If it is shorter than the two channel 8b, tap water is suddenly squeezed and blown out at a higher pressure, so that a large pressure difference is generated and cavitation bubbles are effectively generated.

このようにして、ノズル６で生成されシャワーヘッド３から吹き出される微細気泡水のシャワーを浴びると、微細気泡が毛穴に浸透し皮脂汚れを掻き出して、毛根の活性化や美肌効果がある。 In this way, when a shower of fine bubble water generated by the nozzle 6 and blown out from the shower head 3 is taken, the fine bubbles permeate into the pores and scrape out sebum stains, which has the effect of activating hair roots and beautifying the skin.

次に、本発明を適用する機具として家庭用の洗濯機での実施形態を図面を参照して説明する。図７は本発明に係る洗濯機用の微細気泡水生成器１Ｂの外観を斜視図、図８は側断面図をそれぞれ示しており、図８では、上述の図２（第１実施形態）にそれぞれ示した構成要素と同様の構成要素については、同一の符号が付されている。すなわち、斜円柱の取水孔７が穿設されている取水プレート７や、頸部９を挟み図７の矢印で示す水道水の流れる方向に沿って径が漸次縮小する第１通水路８ａと、水道水の流れる方向に沿って径が漸次増大する第２通水路８ｂとを備えるノズル６である。また、第２実施形態に係る微細気泡水生成器１Ｂに関し、以下で特に言及しない事項については、第１実施形態の場合と同様とする。 Next, an embodiment of a household washing machine as a machine to which the present invention is applied will be described with reference to the drawings. FIG. 7 shows a perspective view of the appearance of the fine bubble water generator 1B for a washing machine according to the present invention, FIG. 8 shows a side sectional view, and FIG. 8 shows the above-mentioned FIG. 2 (first embodiment). The same reference numerals are given to the same components as those shown. That is, the intake plate 7 in which the intake hole 7 of the oblique column is bored, and the first water passage 8a whose diameter gradually decreases along the flow direction of tap water indicated by the arrow in FIG. 7 sandwiching the neck 9. The nozzle 6 is provided with a second water passage 8b whose diameter gradually increases along the flow direction of tap water. Further, regarding the fine bubble water generator 1B according to the second embodiment, the matters not particularly mentioned below are the same as in the case of the first embodiment.

微細気泡水生成器１Ｂでは、第１円筒部２１と第２円筒部２２とを備える本体ケース２０は、第１円筒部２１と第２円筒部２２との間には、内部にノズル６が配置される局面形状の側部を有する中間部２３が設けられている。よって、第２円筒部２２は、中心にノズル６の第２通水路８ｂの出口側の口径と等しい通過孔２５が穿設された底面を有する有底円筒体で構成されている。そして、この底面には、洗濯機２６の給水口２７と接続されたとき、水密性を確保すると共に、緩みを防止するための環状のゴムワッシャー２４が取り付けられている。 In the fine bubble water generator 1B, the main body case 20 including the first cylindrical portion 21 and the second cylindrical portion 22 has a nozzle 6 internally arranged between the first cylindrical portion 21 and the second cylindrical portion 22. An intermediate portion 23 having a side portion having a curved shape is provided. Therefore, the second cylindrical portion 22 is composed of a bottomed cylindrical body having a bottom surface having a passage hole 25 having a diameter equal to the diameter on the outlet side of the second water passage 8b of the nozzle 6 at the center. An annular rubber washer 24 is attached to the bottom surface of the washing machine 26 to ensure watertightness and prevent loosening when connected to the water supply port 27 of the washing machine 26.

図９は微細気泡水生成器１Ｂの洗濯機２６への取り付けを示している。第１円筒部２１はその外周に給水ホース２４に接続するためのオネジ２１ａが形成されて、径の大きい第２円筒部５はその内周に洗濯機２６に接続するためのメネジ２２ａが形成されている。 FIG. 9 shows the attachment of the fine bubble water generator 1B to the washing machine 26. A male screw 21a for connecting to the water supply hose 24 is formed on the outer circumference of the first cylindrical portion 21, and a female screw 22a for connecting to the washing machine 26 is formed on the inner circumference of the second cylindrical portion 5 having a large diameter. ing.

給水ホース２４は、入口側が水道水の蛇口２５に接続されて、出口側が洗濯機２６の給水口２７に接続される洗濯機付属の専用ホースである。尚、蛇口２５は、水道配管に直結或いは集合住宅の場合には増圧ポンプや高架水槽を介して接続されて、水道水を供給する。 The water supply hose 24 is a dedicated hose attached to the washing machine, the inlet side of which is connected to the tap water faucet 25 and the outlet side of which is connected to the water supply port 27 of the washing machine 26. The faucet 25 is directly connected to the water pipe or, in the case of an apartment house, connected via a booster pump or an elevated water tank to supply tap water.

洗濯機２６の給水口２７は、洗濯機２６の本体面から凹ませた給水部の底面から突出形成された円筒体で構成されており、外周にはオネジ２７ａが形成されている。よって、給水ホース２４は、通常その放水側の端部がオネジ２７ａと螺合して洗濯機２６と接続されるが、洗濯機２６に微細気泡水生成器１Ｂを取り付ける際には、給水ホース２４の放水側端部は給水口２７に代わって第１円筒部２１に接続される。そして、第２円筒部２２を給水口２７に被せ、オネジ２７ａと螺合させて、微細気泡水生成器１Ｂを洗濯機２６に取り付ける。 The water supply port 27 of the washing machine 26 is formed of a cylindrical body protruding from the bottom surface of the water supply portion recessed from the main body surface of the washing machine 26, and a male screw 27a is formed on the outer periphery thereof. Therefore, the water supply hose 24 is usually connected to the washing machine 26 by screwing its end on the water discharge side with the male screw 27a, but when the fine bubble water generator 1B is attached to the washing machine 26, the water supply hose 24 is connected. The end of the water discharge side is connected to the first cylindrical portion 21 in place of the water supply port 27. Then, the second cylindrical portion 22 is put on the water supply port 27 and screwed with the male screw 27a to attach the fine bubble water generator 1B to the washing machine 26.

洗濯機への取り付けの場合においても、規格の寸法が合わず微細気泡水生成器１Ｂが給水ホース２４や給水口２７のそれぞれと接続できないときには、図５で説明した第１及び第２アダプタ１４，１５が使用される。 Even in the case of mounting on a washing machine, if the standard dimensions do not match and the fine bubble water generator 1B cannot be connected to each of the water supply hose 24 and the water supply port 27, the first and second adapters 14 described with reference to FIG. 15 is used.

上記構成の微細気泡水生成器１Ｂも上述の微細気泡水生成器１Ｂと同様の作用で微細気泡水を生成して、洗濯機２６へ供給する。すなわち、蛇口２５から微細気泡水生成器１へ供給される水道水は、先ず第１円筒部２１へ導入されて、取水プレート７の各取水孔１１を通過するが、水道水は斜円柱の形状の取水孔９を通過することで、取水プレート８の中心軸線方向からは外れた斜めの方向へ流出する。そして、絞り構造の第１通水路１０ａの内壁に斜めから突き当たり、図６で説明したように螺旋状に旋回しながら速度を上げながら頸部１１へ進み、第２通水路１０ｂへ高圧で吹き出されて、第２通水路１０ｂ内で拡散される。よって、急激な圧力低下が生じて、沸騰現象により水道水中には無数の微細なキャビテーション気泡が第２通水路１０ｂ内に発生して、洗濯機２６へ供給される。 The fine bubble water generator 1B having the above configuration also generates fine bubble water by the same action as the above fine bubble water generator 1B and supplies it to the washing machine 26. That is, the tap water supplied from the faucet 25 to the fine bubble water generator 1 is first introduced into the first cylindrical portion 21 and passes through each intake hole 11 of the intake plate 7, but the tap water has the shape of an oblique cylinder. By passing through the intake hole 9 of the water intake plate 8, the water flows out in an oblique direction deviating from the central axis direction of the water intake plate 8. Then, it abuts diagonally against the inner wall of the first water passage 10a having a throttle structure, and as described in FIG. 6, it advances to the neck 11 while increasing the speed while turning spirally, and is blown out to the second water passage 10b at high pressure. Then, it is diffused in the second water passage 10b. Therefore, a sudden drop in pressure occurs, and innumerable fine cavitation bubbles are generated in the second water passage 10b due to the boiling phenomenon and are supplied to the washing machine 26.

微細気泡水が注入された洗濯機２６の洗濯槽の中では、微細気泡の表面はマイナスの電荷を帯びているため、気泡同士が合体することなく、微細気泡水中に拡散・浮遊している。一方、洗濯のために洗濯槽内の微細気泡水中に漬けられている繊維に付着している皮脂や細かい異物等による汚れはプラスに帯電しているため、微細気泡は、汚れに吸着して電気的に中和する。そして、電気的に中和されて繊維から分離した汚れは、微細気泡の気液界面に吸着したまま気泡の浮力によって水面に浮上することで、繊維から除去された汚れが微細気泡水中で再び繊維に付着されることがなく、これにより洗濯が行われる。 In the washing tub of the washing machine 26 into which the fine bubble water is injected, the surface of the fine bubbles is negatively charged, so that the bubbles do not coalesce but diffuse and float in the fine bubble water. On the other hand, the fine bubbles in the washing tub for washing are positively charged with dirt caused by sebum and fine foreign substances adhering to the fibers immersed in the water, so the fine bubbles are adsorbed on the dirt and become electric. Neutralize. Then, the dirt that is electrically neutralized and separated from the fiber floats on the water surface by the buoyancy of the bubble while being adsorbed on the gas-liquid interface of the fine bubble, so that the dirt removed from the fiber is again in the fine bubble water. It does not adhere to the cloth, which causes washing.

よって、微細気泡水で洗濯すれば洗剤を用いずとも効果的に洗濯でき、洗剤アレルギーのある人には最適である。より効果的には、微細気泡水に洗剤を注入してもよいが、通常の水のときと比べて洗剤が少量で済む。 Therefore, washing with fine bubble water can be effectively washed without using detergent, which is most suitable for people with detergent allergies. More effectively, the detergent may be injected into the fine bubble water, but the amount of detergent required is smaller than that of normal water.

以上、２通りの実施態様で本発明に係る微細気泡水生成器を説明したが、取水プレート７の取水孔１１の形状を入口側から出口側に向けての中心軸が取水プレート７の中心軸に対し傾斜している斜円柱の形状とすることで、水道水は第１通水路８ａを旋回しながら通過していくために、取水孔１１を取水プレート７の中心軸に沿った形状の真円柱とした場合と比べて、頸部９から第２通水路１０ｂへ吹き出されるときの速度が速く、水道水中に微細なキャビテーション気泡を生成することができる。 The fine bubble water generator according to the present invention has been described above in two embodiments, but the central axis of the intake hole 11 of the intake plate 7 from the inlet side to the outlet side is the central axis of the intake plate 7. By forming the shape of an oblique cylinder that is inclined with respect to the above, tap water passes through the first water passage 8a while swirling, so that the intake hole 11 has a true shape along the central axis of the intake plate 7. Compared with the case of using a cylinder, the speed at which the water is blown from the neck 9 to the second water passage 10b is faster, and fine cavitation bubbles can be generated in tap water.

また、第１通水路８ａに旋回流を発生させるとき、回転率が高い有効な旋回流を発生させるほど、水道水中に多数の微細気泡を発生させることができる。よって、回転率の高い有効な旋回流を発生させるには、厚さがある取水プレート７を用いて取水孔１１の軸方向での長さ寸法を充分に確保する。その場合の、厚さの目安としては、図３で示されているように、取水プレート７の厚さ寸法をｔ、直径寸法をｄとしたときの比（ｔ／ｄ）を１／４以上に設定するのがよい。本例では、直径寸法ｄが１３．５ｍｍに対して、厚さ寸法ｔを５ｍｍとしている。 Further, when a swirling flow is generated in the first water passage 8a, a large number of fine bubbles can be generated in tap water so that an effective swirling flow having a high turnover rate is generated. Therefore, in order to generate an effective swirling flow having a high rotation rate, a thick intake plate 7 is used to sufficiently secure the length dimension of the intake hole 11 in the axial direction. In that case, as a guideline for the thickness, as shown in FIG. 3, the ratio (t / d) when the thickness dimension of the intake plate 7 is t and the diameter dimension is d is 1/4 or more. It is better to set it to. In this example, the diameter dimension d is 13.5 mm, while the thickness dimension t is 5 mm.

このように取水プレート厚の寸法ｔを直径寸法ｄの少なくとも１／４以上に設定して、取水孔１１の奥行き方向の中心軸の距離を長くすれば水道水は勢いよく流出し、回転率の高い旋回流が第１通水路８ａ内に形成されて、効果的に多数の微細気泡を発生させることができる。 In this way, if the dimension t of the intake plate thickness is set to at least 1/4 or more of the diameter dimension d and the distance of the central axis in the depth direction of the intake hole 11 is increased, tap water will flow out vigorously and the turnover rate will be increased. A high swirling flow is formed in the first water passage 8a, and a large number of fine bubbles can be effectively generated.

本発明に係る微細気泡水生成器１Ａ，１Ｂによれば、一般家庭に供給されている水道水の中に含まれている空気を利用して、キャビテーションにより微細気泡を効果的に発生させることができる。水道直結の場合に、一般的な水道水圧は１．５ｋｇｆ／ｃｍ２から３ｋｇｆ／ｃｍ２（０．１５乃至０．３ＭＰａ）が下限とされており、ノズル部２２では、一般家庭に供給されている水道水の中に含まれている空気をこの水道水圧だけで、キャビテーションにより微細化された気泡を含む水道水にすることができる。この場合の水道水圧は、２．０乃至４．０ｋｇｆ/ｃｍ２（０．２乃至０．３９ＭＰａ）で供給されるのが好ましい。 According to the fine bubble water generators 1A and 1B according to the present invention, it is possible to effectively generate fine bubbles by cavitation using the air contained in tap water supplied to a general household. can. In the case of direct connection to water supply, the lower limit of general tap water pressure is 1.5 kgf / cm 2 to 3 kgf / cm 2 (0.15 to 0.3 MPa), and the nozzle portion 22 is supplied to general households. The air contained in the existing tap water can be converted into tap water containing bubbles finely divided by cavitation only by this tap water pressure. The tap water pressure in this case is preferably 2.0 to 4.0 kgf / cm 2 (0.2 to 0.39 MPa).

また、供給される水道水の圧力や流量に応じて微細気泡水生成器１Ａ，１Ｂへ取水能力を変更できるよう図１０に示す別の実施例では、各取水孔７に開口調節機構である可変オリフィス２８を備える。可変オリフィス２８は、虹彩絞り機構を備え、取水孔７の開口面積を変化させることができるように構成されたオリフィスである。虹彩絞り機構は、カメラレンズの絞り等で一般に知られているもので、図１１の（ａ）から（ｃ）までに示すように、例えば中央の開口２９が略円形となるように重ね合わされた複数の金属片３０をギア（図示せず）の駆動で回動させることにより、開口１４の面積を４通りに変化させる。この場合、各可変オリフィス２８のギアは、本体ケースの外に設けた孔径調節ダイアルを回転することにより同時に駆動されて、各取水孔１１の開口面積は一斉に同じ大きさに調整可能なよう構成している。 Further, in another embodiment shown in FIG. 10 so that the water intake capacity can be changed to the fine bubble water generators 1A and 1B according to the pressure and flow rate of the supplied tap water, each intake hole 7 has a variable opening adjusting mechanism. It is provided with an orifice 28. The variable orifice 28 is an orifice provided with an iris diaphragm mechanism and configured so that the opening area of the intake hole 7 can be changed. The iris diaphragm mechanism is generally known for the diaphragm of a camera lens and the like, and as shown in FIGS. 11A to 11C, for example, the central opening 29 is overlapped so as to be substantially circular. By rotating a plurality of metal pieces 30 by driving a gear (not shown), the area of the opening 14 is changed in four ways. In this case, the gears of each variable orifice 28 are simultaneously driven by rotating the hole diameter adjusting dial provided outside the main body case, and the opening area of each intake hole 11 can be adjusted to the same size all at once. is doing.

このような可変オリフィス２８を設けることで、水道水の送給圧が低い場合には、取水孔１１の開口面積を小さくすることで送給圧を高めてノズル６へ導入することができ、ノズル６への水道水の送給圧を一定に調節することができる。 By providing such a variable orifice 28, when the feed pressure of tap water is low, the feed pressure can be increased by reducing the opening area of the intake hole 11 and introduced into the nozzle 6. The feed pressure of tap water to 6 can be adjusted to be constant.

また、取水孔１１を図１２ａに示すように孔の内壁表面を凹凸面１１ａとすることで、水道水は乱流度を上げながら取水孔１１から放出される。本例では多数の突起を設けて凹凸面１１ａを形成している。このように乱流度を向上させると水道水中の溶存空気が取り出しやすくなり、ノズル４内でキャビテーション気泡が効果的に発生させることができる。 Further, by making the surface of the inner wall of the intake hole 11 an uneven surface 11a as shown in FIG. 12a, tap water is discharged from the intake hole 11 while increasing the degree of turbulence. In this example, a large number of protrusions are provided to form the uneven surface 11a. When the degree of turbulence is improved in this way, the dissolved air in tap water can be easily taken out, and cavitation bubbles can be effectively generated in the nozzle 4.

さらに、取水孔１１の形状を図１２ｂに示すように、入口側から出口側に向けての斜円柱に屈曲部を設けて捻じれを加えた形状とするとよい。これにより、取水孔１１の中を通過する水道水の流れには捻りが生じ、第１通水路８ａではより回転率の高い旋回流を発生させることができるこれにより、取水孔１１の内壁の凹凸面１１ａと相俟って乱流度が更に高まり、ノズル１１内でのキャビテーション気泡の発生効果を向上させることができる。 Further, as shown in FIG. 12b, the shape of the water intake hole 11 may be a shape in which a bent portion is provided in a slanted cylinder from the inlet side to the outlet side and twisted. As a result, the flow of tap water passing through the intake hole 11 is twisted, and a swirling flow having a higher rotation rate can be generated in the first water passage 8a. In combination with the surface 11a, the degree of turbulence is further increased, and the effect of generating cavitation bubbles in the nozzle 11 can be improved.

本発明は上記実施形態に限定されるものではなく、本発明の趣旨に基づき種々の変形が可能である。例えば、取水孔１１は、設置される水道水の配管等の流量に応じて最大でも２０個程度まで設けることができる。したがって、取水孔１１の数が多くなるときには、円状に等間隔で配置するよりは、取水プレート７の平面に一様に均しく配置するのが好ましい。 The present invention is not limited to the above embodiment, and various modifications can be made based on the gist of the present invention. For example, up to about 20 intake holes 11 can be provided depending on the flow rate of the installed tap water pipes and the like. Therefore, when the number of intake holes 11 is large, it is preferable to arrange them uniformly and evenly on the plane of the intake plate 7 rather than arranging them in a circle at equal intervals.

そして、通水部８においても、上記実施形態は、第１通水路８ａの入口側の口径を第２通水路８ｂの出口側の口径より大きくして、中心軸方向での距離は第２通水路８ｂの方を長くしているが、同一口径として頸部９を中心に対称となる形状で構成してもよい。要は、第１通水路８ａから吹き出される水道水の圧力と、第２通水路８ｂ内での拡散による低下する圧力との関係で、適切な量と微細気泡としての高品質のキャビテーション気泡が生成できるように設定するものである。 Further, also in the water passage portion 8, in the above embodiment, the diameter of the inlet side of the first water passage 8a is made larger than the diameter of the outlet side of the second water passage 8b, and the distance in the central axis direction is the second passage. Although the water channel 8b is longer, it may be configured to have the same diameter and be symmetrical with respect to the neck 9. In short, the relationship between the pressure of tap water blown out from the first channel 8a and the pressure that decreases due to diffusion in the second channel 8b produces an appropriate amount of high-quality cavitation bubbles as fine bubbles. It is set so that it can be generated.

そして、さらに効率良く微細気泡を生成するには、前段のノズル６の第２通水路８ｂに後段のノズル６の第１通水路８ａを接続する関係で複数のノズル６を直列に配置して、キャビテーション発生を繰り返す構成にするとよい。 Then, in order to generate fine bubbles more efficiently, a plurality of nozzles 6 are arranged in series so as to connect the first water passage 8a of the nozzle 6 in the rear stage to the second water passage 8b of the nozzle 6 in the front stage. It is advisable to configure it so that cavitation occurs repeatedly.

１Ａ 微細気泡水生成器
１Ｂ 微細気泡水生成器
２ 専用ホース（シャワーホース）
３ シャワーヘッド（家庭用機具）
４ 第１円筒部
４ａ オネジ
５ 第２円筒部
５ａ メネジ
７ 取水プレート
８ａ 第１通水路
８ｂ 第２通水路
１０ 本体ケース
１１ 取水孔
１４ 第１アダプタ
１５ 第２アダプタ
２１ 第１円筒部
２１ａ オネジ
２２ 第２円筒部
２２ａ メネジ
２３ 本体ケース
２４ 専用ホース（給水ホース）
２６ 洗濯機（家庭用機具）
２８ 開口調節機構
３０ 絞り羽根 1A Fine bubble water generator 1B Fine bubble water generator 2 Dedicated hose (shower hose)
3 Shower head (household equipment)
4 1st cylindrical part 4a Male screw 5 2nd cylindrical part 5a Female screw 7 Water intake plate 8a 1st water passage 8b 2nd water passage 10 Main body case 11 Water intake hole 14 1st adapter 15 2nd adapter 21 1st cylindrical part 21a Male screw 22 2 Cylindrical part 22a Female screw 23 Main body case 24 Dedicated hose (water supply hose)
26 Washing machine (household equipment)
28 Aperture adjustment mechanism 30 Aperture blade

Claims (8)

専用ホースを通して導入される水道水を使用する機具に取り付ける微細気泡水生成器であって、
前記専用ホースからの給水側端部と前記機具への取水側端部との間に接続可能な本体ケースと、
前記本体ケース内の水道水の流路に円状に等間隔で穿設された複数流路が設けられた取水プレートと、
前記本体ケース内で前記取水プレートの下流に配置されるノズルと、
を備え、
前記取水プレートに穿設された複数の取水孔は、
当該取水プレートの中心線に対して対称的に入水側から出水側に向けて捻じれが生じるように屈曲して傾斜するように形成され、
その内面には乱流を発生するための凹凸面を形成され、
当該複数の取水孔には、前記水道水の送給圧に対応して前記ノズル側への水道水の供給圧力を調整するためにその開口面積を一斉に可変にする絞り機構を備え、
前記ノズルは、
前記取水プレートを通過して流れる水道水の流れる方向に沿って径が漸次縮小していく第１通水路と、前記第１通水路の出口側に連通して水道水の流れ方向に沿って径が漸次増大していく第２通水路と、を含み、
前記第１通水路の長さは、前記第２通水路の長さよりも短く、
前記第１通水路における水道水の流れる方向に沿ってその径が縮小していく傾斜角は、前記第２通水路における水道水の流れを広げる傾斜角よりも大きい、
ことを特徴とする微細気泡水生成器。 A fine bubble water generator that attaches to equipment that uses tap water introduced through a dedicated hose.
A main body case that can be connected between the water supply side end from the dedicated hose and the water intake side end to the equipment.
An intake plate provided with a plurality of flow paths drilled at equal intervals in a circle in the flow path of tap water in the main body case.
A nozzle arranged downstream of the intake plate in the main body case,
Equipped with
The plurality of intake holes formed in the intake plate are
It is formed so as to bend and incline so as to cause a twist from the water inlet side to the water outlet side symmetrically with respect to the center line of the intake plate.
An uneven surface for generating turbulence is formed on the inner surface,
The plurality of intake holes are provided with a throttle mechanism that simultaneously changes the opening area in order to adjust the supply pressure of tap water to the nozzle side in response to the supply pressure of the tap water.
The nozzle is
The diameter is gradually reduced along the flow direction of tap water flowing through the intake plate, and the diameter is communicated with the outlet side of the first water channel along the flow direction of tap water. Including the second channel, which is gradually increasing
The length of the first channel is shorter than the length of the second channel.
The inclination angle at which the diameter decreases along the flow direction of tap water in the first water channel is larger than the inclination angle at which the flow of tap water in the second water channel is widened.
A fine bubble water generator characterized by that . 前記第１通水路と前記第２通水路とは、それぞれの最大径部の径寸法は前記第１通水路が大きく、水道水の流れる方向に沿ったそれぞれの長さ寸法は前記第２通水路が大きくなるよう設けた請求項１に記載の微細気泡水生成器。 The first waterway and the second waterway have a large diameter of the maximum diameter of each of the first waterway, and the length of each of the two waterways along the flow direction of tap water is the second waterway. The fine bubble water generator according to claim 1 , which is provided so as to have a large size. 前記取水プレートの取水プレート厚寸法は直径寸法の少なくとも１／４以上である請求項２に記載の微細気泡水生成器。 The fine bubble water generator according to claim 2, wherein the intake plate thickness dimension of the intake plate is at least 1/4 or more of the diameter dimension. 前記本体ケースの前記専用ホースとの接続側の端部の外周には、前記専用ホースの前記給水側端部の内周に形成されているメネジと螺合するオネジが形成されている請求項１に記載の微細気泡水生成器。 1. A male screw screwed with a female screw formed on the inner circumference of the water supply side end of the dedicated hose is formed on the outer periphery of the end of the main body case on the connection side with the dedicated hose. The fine bubble water generator described in. 前記専用ホースの前記メネジと螺合するオネジが一端の外周に形成されて、他端の内周には前記本体ケースの前記専用ホースとの接続側の端部の前記オネジと螺合するメネジが形成されている第１アダプタを介して、前記本体ケースの前記専用ホースとの接続側の端部は、前記専用ホースと適宜、接続される請求項４に記載の微細気泡水生成器。 A male screw to be screwed with the female screw of the dedicated hose is formed on the outer periphery of one end, and a female screw to be screwed with the male screw at the end of the main body case on the connection side with the dedicated hose is formed on the inner circumference of the other end. The fine bubble water generator according to claim 4 , wherein the end of the main body case on the connection side with the dedicated hose is appropriately connected to the dedicated hose via the formed first adapter. 前記本体ケースの前記機具の前記取水側端部との接続側の端部は、前記機具の前記取水側端部の外周に形成されたオネジと螺合するメネジが内周に形成されている請求項１に記載の微細気泡水生成器。 A claim that a female screw screwed with a male screw formed on the outer periphery of the water intake side end of the equipment is formed on the inner circumference of the end of the main body case on the connection side with the water intake side end of the equipment. Item 1. The fine bubble water generator according to Item 1. 前記機具の前記オネジと螺合するメネジが一端の内周に形成されて、他端の外周には前記本体ケースの前記機具との接続側の前記メネジと螺合するオネジが形成されている第２アダプタを介して、前記本体ケースの前記機具との接続側の端部は、前記機具と適宜、接続される請求項６に記載の微細気泡水生成器。 A female screw to be screwed with the male screw of the machine is formed on the inner circumference of one end, and a male screw to be screwed with the female screw on the connection side with the machine of the main body case is formed on the outer circumference of the other end. 2. The fine bubble water generator according to claim 6 , wherein the end of the main body case on the connection side with the equipment is appropriately connected to the equipment via the two adapters. 前記絞り機構は、複数枚の絞り羽根を重ね合わせて形成される虹彩絞り機構であることを特徴とする請求項１に記載の微細気泡水生成器。 The fine bubble water generator according to claim 1 , wherein the diaphragm mechanism is an iris diaphragm mechanism formed by superimposing a plurality of diaphragm blades.
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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7314561B2 (en) * 2019-03-25 2023-07-26 三菱電機株式会社 Sterilization device and hot water supply device
CN110449274B (en) * 2019-08-14 2023-05-23 路达(厦门)工业有限公司 Water outlet structure capable of generating lantern-shaped water flowers and kitchen and toilet products
CN112831986B (en) * 2019-11-22 2023-04-07 青岛海尔洗衣机有限公司 Microbubble treatment agent box assembly and washing equipment with same
JP6994549B1 (en) * 2020-10-13 2022-01-14 株式会社富士計器 Shower hose with fine bubble water generator
JP7231593B2 (en) * 2020-10-13 2023-03-01 株式会社富士計器 Water supply hose for washing machine with microbubble water generator
CN113073714B (en) * 2021-03-23 2022-12-13 江门市梦霖卫浴有限公司 Water-purifying quick-heating water tap
JP2022190955A (en) * 2021-06-15 2022-12-27 株式会社富士計器 Washing machine hose and shower hose equipped with fine air bubble water generator
JP2023005665A (en) * 2021-06-29 2023-01-18 株式会社富士計器 Fine bubble generator for pipeline root
CN113941556A (en) * 2021-09-17 2022-01-18 无锡小天鹅电器有限公司 Bubble generating device, runner assembly and washing device
JP7202764B1 (en) 2022-04-28 2023-01-12 株式会社富士計器 water supply unit
KR102596925B1 (en) * 2022-08-18 2023-11-01 주식회사 알티자동화 Nano bubble water generator for semiconductor cleaning

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002102100A (en) 2000-10-04 2002-04-09 Toto Ltd Shower unit
JP2007021392A (en) 2005-07-19 2007-02-01 Hitachi Ltd Apparatus and method for producing microbubble
JP2010274243A (en) 2009-06-01 2010-12-09 Shibaura Mechatronics Corp Micro bubble generation apparatus and micro bubble generating method
US20110124548A1 (en) 2009-08-18 2011-05-26 Montgomery Clay Collier Dynamic orifice changer
JP2011103814A (en) 2009-11-18 2011-06-02 Suntory Holdings Ltd Method for producing carbonated beverage
JP2012130901A (en) 2010-12-01 2012-07-12 Tanaka Kinzoku Seisakusho:Kk Bubble generator
JP2014028340A (en) 2012-07-31 2014-02-13 Institute Of National Colleges Of Technology Japan Superfine microbubble generation device
JP2014147901A (en) 2013-02-01 2014-08-21 Micro-Bub Kk Microbubble generator and microbubble generating tube structure
JP2015077566A (en) 2013-10-17 2015-04-23 株式会社アスプ Air-containing liquid generation device and ejection mechanism for air-containing liquid
JP2015155088A (en) 2014-02-20 2015-08-27 ミズタニバルブ工業株式会社 bubble generator and bubble generation mechanism
JP3209280U (en) 2016-12-21 2017-03-09 株式会社富士計器 Household water treatment equipment
JP2017185444A (en) 2016-04-05 2017-10-12 株式会社ｍｉｃｒｏ−ｂｕｂ Microbubble generator for faucet with head-shaking pipe and faucet with head-shaking pipe

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61155055U (en) * 1985-03-13 1986-09-26
JPH06320150A (en) * 1993-03-17 1994-11-22 Marine Bio Kk Filter and shower head for hair washing water
JPH1133440A (en) * 1997-07-16 1999-02-09 Tokyo Gas Co Ltd Shower head
US7997563B2 (en) * 2005-01-13 2011-08-16 National University Corporation University Of Tsukuba Micro-bubble generator, vortex breakdown nozzle for micro-bubble generator, vane swirler for micro-bubble generator, micro-bubble generating method, and micro-bubble applying device
JP2007021343A (en) 2005-07-14 2007-02-01 Kansai Automation Kiki Kk Microbubble generator
JP2009136864A (en) 2007-11-16 2009-06-25 Nippon Sozai Kk Microbubble generator
JP5970378B2 (en) * 2010-03-02 2016-08-17 アカル エネルギー リミテッド Fuel cell
CN203886075U (en) * 2014-04-30 2014-10-22 天广消防股份有限公司 High-pressure water mist nozzle
JP6358613B2 (en) 2014-06-16 2018-07-18 株式会社ｍｉｃｒｏ−ｂｕｂ Shower head that can provide a shower experience without a watering plate
JP2016209331A (en) 2015-05-11 2016-12-15 東芝ライフスタイル株式会社 Washing machine

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002102100A (en) 2000-10-04 2002-04-09 Toto Ltd Shower unit
JP2007021392A (en) 2005-07-19 2007-02-01 Hitachi Ltd Apparatus and method for producing microbubble
JP2010274243A (en) 2009-06-01 2010-12-09 Shibaura Mechatronics Corp Micro bubble generation apparatus and micro bubble generating method
US20110124548A1 (en) 2009-08-18 2011-05-26 Montgomery Clay Collier Dynamic orifice changer
JP2011103814A (en) 2009-11-18 2011-06-02 Suntory Holdings Ltd Method for producing carbonated beverage
JP2012130901A (en) 2010-12-01 2012-07-12 Tanaka Kinzoku Seisakusho:Kk Bubble generator
JP2014028340A (en) 2012-07-31 2014-02-13 Institute Of National Colleges Of Technology Japan Superfine microbubble generation device
JP2014147901A (en) 2013-02-01 2014-08-21 Micro-Bub Kk Microbubble generator and microbubble generating tube structure
JP2015077566A (en) 2013-10-17 2015-04-23 株式会社アスプ Air-containing liquid generation device and ejection mechanism for air-containing liquid
JP2015155088A (en) 2014-02-20 2015-08-27 ミズタニバルブ工業株式会社 bubble generator and bubble generation mechanism
JP2017185444A (en) 2016-04-05 2017-10-12 株式会社ｍｉｃｒｏ−ｂｕｂ Microbubble generator for faucet with head-shaking pipe and faucet with head-shaking pipe
JP3209280U (en) 2016-12-21 2017-03-09 株式会社富士計器 Household water treatment equipment

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