JP2010155191A - Device for generating microbubble - Google Patents

Device for generating microbubble Download PDF

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JP2010155191A
JP2010155191A JP2008334274A JP2008334274A JP2010155191A JP 2010155191 A JP2010155191 A JP 2010155191A JP 2008334274 A JP2008334274 A JP 2008334274A JP 2008334274 A JP2008334274 A JP 2008334274A JP 2010155191 A JP2010155191 A JP 2010155191A
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orifice
collision
discharge
side member
air
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JP5176946B2 (en
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Junji Matsushima
潤治 松島
Hideo Katayama
秀夫 片山
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Daikin Industries Ltd
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Daikin Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure that allows easy assembling of the orifice member and the collision member, and is capable of generating microbubbles of small variation in the bubble diameter in an ejection nozzle of a device for generating microbubbles comprising an orifice member that reduces the pressure of a liquid wherein a gas is dissolved, and a collision member that collides with the liquid with a reduced pressure wherein a gas is dissolved and generates microbubbles. <P>SOLUTION: There is provided an ejection member (11) for generating microbubbles from water wherein air is dissolved and ejecting the same, which is constructed by bonding the outer circumferential fringe of a collision member (13) to the end part of the opening of a cylindrical orifice member (12) having a bottom, to form an integrated body. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、微細気泡を含んだ液体を浴槽等に供給する微細気泡発生装置の吐出ノズルに関し、特に、上記吐出ノズルの組立作業性向上の技術分野に属する。   The present invention relates to a discharge nozzle of a fine bubble generating apparatus for supplying a liquid containing fine bubbles to a bathtub or the like, and particularly belongs to the technical field of improving the assembly workability of the discharge nozzle.

従来より、気体が液体に溶け込んだ気体溶解液を減圧して微細気泡を発生させ、該微細気泡を浴槽内に放出させることにより、該微細気泡による人体への温浴効果等を狙った微細気泡発生装置が知られている。   Conventionally, by generating a fine bubble by depressurizing a gas solution in which a gas is dissolved in a liquid, and then releasing the fine bubble into the bathtub, a fine bubble is generated aiming at a warm bath effect on the human body by the fine bubble. The device is known.

具体的には、上記微細気泡発生装置は、浴槽内の水(液体)を吸入するための吸込部と、その水に空気(気体)を導入するための空気導入部と、該空気の混入された水を加圧圧出するための加圧ポンプと、空気を水に溶解させて空気溶解水(気体溶解液)にするための気体溶解器と、該空気溶解水から微細気泡を発生させて浴槽内に吐出させるための吐出ノズルとを備えている。   Specifically, the fine bubble generating device includes a suction portion for sucking water (liquid) in the bathtub, an air introduction portion for introducing air (gas) into the water, and the air mixed therein. A pressure pump for pressurizing and discharging pressurized water; a gas dissolver for dissolving air in water to form air-dissolved water (gas-dissolved liquid); and a bathtub for generating fine bubbles from the air-dissolved water And a discharge nozzle for discharging inside.

上記微細気泡発生装置は、吸込部から吸入した浴槽内の水を、空気導入部で導入される空気とともに加圧ポンプで圧出し、気液混合流体として気体溶解器へ送り出す。そして、上記微細気泡発生装置は、上記気体溶解器内において、上記気液混合流体中で空気を水に溶解させて空気溶解水とした後、該空気溶解水を吐出ノズルへ送り、該吐出ノズルで減圧等して空気溶解水から微細気泡を発生させ、浴槽に吐出するように構成されている。   The fine bubble generating apparatus pumps out the water in the bathtub sucked from the suction part together with the air introduced by the air introduction part by a pressure pump, and sends it out to the gas dissolver as a gas-liquid mixed fluid. In the gas dissolver, the fine bubble generating device dissolves air in water in the gas-liquid mixed fluid to form air-dissolved water, and then sends the air-dissolved water to the discharge nozzle. In order to generate fine bubbles from the air-dissolved water under reduced pressure, etc., and discharge them into the bathtub.

上記吐出ノズルの具体的な構成としては、例えば特許文献1に開示される吐出ノズルのような構成が考えられている。この特許文献1に開示されている吐出ノズルでは、内部に流路が形成された略円筒状のノズルケーシング内に、上記流路の断面積を小さくするためのオリフィス穴が形成された円板状のオリフィス部(減圧手段)と、該オリフィス部の下流側に所定距離、離間した位置に配置される円板状の衝突部(抵抗体)とが設けられている。また、上記吐出ノズルには、衝突部の外周側とノズルケーシングの内壁との間に水を流すための隙間が形成されている。これにより、空気溶解水は、上記オリフィス部を通過した後に上記衝突部に衝突して内部に微細気泡が発生し、上記衝突部の径方向外方に形成された上記隙間を流れて浴槽内に吐出される。   As a specific configuration of the discharge nozzle, for example, a configuration like a discharge nozzle disclosed in Patent Document 1 is considered. In the discharge nozzle disclosed in Patent Document 1, a disc-like shape in which an orifice hole for reducing the cross-sectional area of the flow path is formed in a substantially cylindrical nozzle casing having a flow path formed therein. And a disc-shaped collision part (resistor) disposed at a position separated by a predetermined distance on the downstream side of the orifice part. Moreover, the clearance gap for flowing water between the outer peripheral side of a collision part and the inner wall of a nozzle casing is formed in the said discharge nozzle. As a result, the air-dissolved water collides with the collision part after passing through the orifice part to generate fine bubbles therein, and flows through the gap formed radially outward of the collision part into the bathtub. Discharged.

なお、上記衝突部は、上記ノズルケーシングに対して筒軸方向に移動可能に構成された可動手段と一体化されていて、該可動手段の移動に応じて上記オリフィス部との間の距離を変えられるようになっている。
特開平5−38354号広報
The collision portion is integrated with movable means configured to be movable in the cylinder axis direction with respect to the nozzle casing, and the distance from the orifice portion is changed according to the movement of the movable means. It is supposed to be.
JP-A-5-38354

ところで、上記特許文献1のような構成を有する吐出ノズルでは、オリフィス部と衝突部とが別々の部材であるため、ノズルケーシング内にこれらの部材を別々に組み付ける必要がある。   By the way, in the discharge nozzle which has a structure like the said patent document 1, since an orifice part and a collision part are separate members, it is necessary to assemble these members separately in a nozzle casing.

さらに、上述のように、ノズルケーシング内に上記オリフィス部及び上記衝突部を組み付ける構成では、それらの部材をノズルケーシング内に組み付ける際に、該オリフィス部と衝突部との隙間の間隔のバラツキが大きくなりやすく、該オリフィス部と衝突部とを平行に配置するのも難しい。そうすると、上記隙間の間隔、すなわち、上記オリフィス部を通過して上記衝突部に衝突した後に放射状に流れる空気溶解水の流路の流路断面積、にもバラツキが生じ、上記吐出ノズルから吐出される微細気泡の気泡径のバラツキも多くなってしまう。   Furthermore, as described above, in the configuration in which the orifice portion and the collision portion are assembled in the nozzle casing, when the members are assembled in the nozzle casing, the gap between the orifice portion and the collision portion varies greatly. It is also easy to arrange the orifice part and the collision part in parallel. Then, the gap interval, that is, the cross-sectional area of the flow path of the air-dissolved water that flows radially after colliding with the collision portion through the orifice portion also varies, and is discharged from the discharge nozzle. The variation in the bubble diameter of the fine bubbles increases.

本発明は斯かる諸点に鑑みてなされたものであり、その目的とするところは、気体溶解液を減圧させるオリフィス部と減圧した気体溶解液を衝突させて微細気泡を小型化させる衝突部とを備えた微細気泡発生装置の吐出ノズルにおいて、オリフィス部及び衝突部の組み立てを容易に行うことができるとともに、気泡径のバラツキの少ない微細気泡を発生させることのできる構成を得ることにある。   The present invention has been made in view of such various points, and an object of the present invention is to provide an orifice part for reducing the pressure of the gas solution and a collision part for reducing the size of the fine bubbles by colliding the reduced pressure gas solution. An object of the present invention is to obtain a configuration capable of easily assembling an orifice portion and a collision portion and generating fine bubbles with little variation in bubble diameter in the discharge nozzle of the provided fine bubble generator.

上記目的を達成するために、本発明に係る吐出ノズル(10)では、該吐出ノズル(10)内の流路の断面積を絞って気体溶解液を減圧させるためのオリフィス部(12,24,33)と、該オリフィス部(12,24,33)で減圧した気体溶解液を衝突させて微細気泡を小径化させる衝突部(13)とを接続して一体化した。   In order to achieve the above object, in the discharge nozzle (10) according to the present invention, an orifice portion (12, 24,) for reducing the pressure of the gas solution by reducing the cross-sectional area of the flow path in the discharge nozzle (10). 33) and a collision part (13) that collides a gas solution depressurized by the orifice part (12, 24, 33) to reduce the diameter of the fine bubbles are connected and integrated.

具体的には、第1の発明は、気体が液体中に加圧溶解された気体溶解液を減圧して微細気泡を吐出するように、内部に流路が形成された吐出ノズル(10)を有する微細気泡発生装置を対象とする。   Specifically, the first invention includes a discharge nozzle (10) having a flow path formed therein so as to discharge a fine bubble by depressurizing a gas solution obtained by pressurizing and dissolving the gas in the liquid. The target is a microbubble generator having the above.

そして、上記吐出ノズル(10)は、上記流路の流路断面積を小さくするためのオリフィス孔(12a,24c,33b)が形成されたオリフィス部(12,24,33)と、上記オリフィス孔(12a,24c,33b)から流出する気体溶解液が衝突して該気体溶解液内で微細気泡を小径化するように、上記オリフィス孔(12a,24c,33b)の流路出口側に設けられた衝突部(13)とを備え、上記オリフィス部(12,24,33)及び衝突部(13)は、互いに接続されて一体化されることにより、上記微細気泡を吐出する吐出部材(11,21,31)を構成しているものとする。   The discharge nozzle (10) includes an orifice portion (12, 24, 33) in which an orifice hole (12a, 24c, 33b) for reducing a flow passage cross-sectional area of the flow passage is formed, and the orifice hole (12a, 24c, 33b) is provided at the outlet side of the orifice hole (12a, 24c, 33b) so that the gas solution flowing out from (12a, 24c, 33b) collides and the microbubbles are reduced in diameter in the gas solution. The orifice part (12, 24, 33) and the collision part (13) are connected to each other and integrated to form a discharge member (11, 21 and 31).

以上の構成により、オリフィス部(12,24,33)と衝突部(13)とは一体化されるため、該オリフィス部(12,24,33)と衝突部(13)とを別々にノズルケーシングに組み付ける必要がなくなる。   With the above configuration, the orifice portion (12, 24, 33) and the collision portion (13) are integrated, so the orifice portion (12, 24, 33) and the collision portion (13) are separately provided in the nozzle casing. There is no need to assemble it.

しかも、上述のように、オリフィス部(12,24,33)と衝突部(13)とは一体されていて、両者の相対的な位置関係は一定に保たれているため、両者を所定の距離、離間した状態で精度良く平行に保持することができる。これにより、気体溶解液は、上記オリフィス孔(12a,24c,33b)を通過した後、上記衝突部(13)と衝突して、精度良く平行に保たれた上記オリフィス部(12,24,33)と上記衝突部(13)との間を流れる。すなわち、上述の構成により、オリフィス部(12,24,33)を通過して衝突部(13)に衝突した後に放射状に流れる気体溶解液の流量のバラツキが少なくなり、上記吐出ノズル(10)から吐出される微細気泡の気泡径のバラツキを少なくすることができる。   Moreover, as described above, the orifice portion (12, 24, 33) and the collision portion (13) are integrated, and the relative positional relationship between the two is kept constant, so that the two are kept at a predetermined distance. , And can be held in parallel with high accuracy in a separated state. As a result, the gas solution passes through the orifice holes (12a, 24c, 33b) and then collides with the collision portion (13), so that the orifice portions (12, 24, 33) maintained in parallel with high accuracy are used. ) And the collision part (13). That is, with the above-described configuration, variation in the flow rate of the gas solution flowing radially after passing through the orifice portion (12, 24, 33) and colliding with the collision portion (13) is reduced, and the discharge nozzle (10) The variation in the bubble diameter of the discharged fine bubbles can be reduced.

上述の構成において、上記吐出部材(11,21,31)は、上記衝突部(13)の周縁部と上記オリフィス部(12,24,33)の周縁部との間に上記微細気泡を含んだ気体溶解液の導出口(13a)が形成されるように、上記衝突部(13)の周縁部の一部が上記オリフィス部(12,24,33)の周縁部と接続されているものとする(第2の発明)。   In the above-described configuration, the discharge member (11, 21, 31) includes the fine bubbles between the peripheral portion of the collision portion (13) and the peripheral portion of the orifice portion (12, 24, 33). It is assumed that a part of the peripheral part of the collision part (13) is connected to the peripheral part of the orifice part (12, 24, 33) so that a gas solution outlet (13a) is formed. (Second invention).

これにより、衝突部(13)とオリフィス部(12,24,33)とを容易に一体化して吐出部材(11,21,31)を構成することができ、第1の発明の構成を簡単な構成によって実現することができる。しかも、上述の構成により、上記衝突部(13)の周縁部とオリフィス部(12,24,33)の周縁部との間を接続部(17,23)によって接続しつつ、上記導出口(13a)も形成できるため、該導出口(13a)を別途、設ける必要がなく、構造の簡素化及び製造作業の軽減を図れる。   Thereby, the collision part (13) and the orifice part (12, 24, 33) can be easily integrated to form the discharge member (11, 21, 31), and the structure of the first invention can be simplified. It can be realized by the configuration. Moreover, with the above-described configuration, the outlet port (13a) is connected to the peripheral portion of the collision portion (13) and the peripheral portion of the orifice portion (12, 24, 33) by the connecting portion (17, 23). ) Can be formed, it is not necessary to provide the outlet (13a) separately, and the structure can be simplified and the manufacturing work can be reduced.

また、上記オリフィス部(12,24,33)は、略有底筒状に形成されているとともに、その底部に上記オリフィス孔(12a,24c,33b)が設けられていて、上記衝突部(13)の周縁部は、上記導出口(13a)が上記オリフィス部(12,24,33)の筒軸方向に向かって開口するように、該オリフィス部(12,24,33)の開口側の周縁部と接続されているのが好ましい(第3の発明)。   Further, the orifice part (12, 24, 33) is formed in a substantially bottomed cylindrical shape, and the orifice hole (12a, 24c, 33b) is provided at the bottom thereof, so that the collision part (13 ) On the opening side of the orifice (12, 24, 33) such that the outlet (13a) opens toward the cylinder axis of the orifice (12, 24, 33). It is preferable that it is connected to the section (third invention).

これにより、衝突部(13)の周縁部と有底筒状のオリフィス部(12,24,33)の開口側の周縁部とが近くなって、両者を容易に接続することができるため、上記衝突部(13)及びオリフィス部(12,24,33)をより容易に一体化することができる。しかも、オリフィス部(12,24,33)の底部に形成されたオリフィス孔(12a,24c,33b)と衝突部(13)とを離間させる構造を容易に実現できるため、上記オリフィス孔(12a,24c,33b)から流出した気体溶解液を衝突部(13)に衝突させる構成を容易に実現することができる。さらに、上記導出口(13a)は、上記有底筒状のオリフィス部(12,24,33)の筒軸方向に向かって開口するように形成されるため、微細気泡を含んだ空気溶解水を一定の方向に向けて効率良く吐出する構成を容易に実現できる。   Thereby, since the peripheral part of the collision part (13) and the peripheral part on the opening side of the bottomed cylindrical orifice part (12, 24, 33) are close to each other, both can be easily connected. The collision part (13) and the orifice part (12, 24, 33) can be integrated more easily. Moreover, since the structure for separating the orifice hole (12a, 24c, 33b) formed in the bottom of the orifice part (12, 24, 33) and the collision part (13) can be easily realized, the orifice hole (12a, It is possible to easily realize a configuration in which the gas solution flowing out from 24c, 33b) collides with the collision part (13). Further, the outlet (13a) is formed so as to open toward the cylinder axis direction of the bottomed cylindrical orifice portion (12, 24, 33). It is possible to easily realize a configuration for efficiently discharging in a certain direction.

また、上記吐出ノズル(10)は、上記オリフィス孔(12a,24c,33b)の入口側流路(15b)を形成するための通路(15c)が内部に形成された入口側部材(15)と、上記導出口(13a)の出口側流路を形成するための通路(16b)が内部に形成された出口側部材(16)とを備え、上記入口側部材(15)及び上記出口側部材(16)は、上記吐出部材(11,21,31)を挟持した状態で、互いに係合可能に構成されているものとする(第4の発明)。   The discharge nozzle (10) includes an inlet side member (15) having a passage (15c) formed therein for forming an inlet side flow path (15b) of the orifice hole (12a, 24c, 33b). And an outlet side member (16) in which a passage (16b) for forming an outlet side flow path of the outlet port (13a) is formed, and the inlet side member (15) and the outlet side member ( 16) is configured to be able to engage with each other in a state where the discharge member (11, 21, 31) is sandwiched (fourth invention).

このように、入口側部材(15)と出口側部材(16)との間に吐出部材(11,21,31)を挟持した状態で、該入口側部材(15)及び出口側部材(16)を係合することで、気体溶解液中に微細気泡を発生させる吐出部材(11,21,31)の入口側に入口側流路(15b)が構成されるとともに、該吐出部材(11,21,31)の出口側に出口側流路(16b)が構成される。したがって、簡単な構成によって、吐出部材(11,21,31)の入口側流路(15b)及び出口側流路(16b)を有する吐出ノズル(10)を構成することができる。   Thus, in a state where the discharge member (11, 21, 31) is sandwiched between the inlet side member (15) and the outlet side member (16), the inlet side member (15) and the outlet side member (16) The inlet-side flow path (15b) is formed on the inlet side of the discharge member (11, 21, 31) that generates fine bubbles in the gas solution by engaging the discharge member (11, 21). , 31) is provided with an outlet side flow path (16b). Therefore, the discharge nozzle (10) having the inlet-side flow path (15b) and the outlet-side flow path (16b) of the discharge member (11, 21, 31) can be configured with a simple configuration.

上述の構成において、上記入口側部材(15)及び上記出口側部材(16)は、それぞれ円筒状の部材からなり、一方の部材(16)の外周面上に他方の部材(15)の内周面が係合するように、該一方の部材(16)の外径が他方の部材(15)の内径と同等になるよう形成されているとともに、該一方の部材(16)の外周面上及び他方の部材(15)の内周面上に互いに螺合可能なネジ部(15a,16a)が形成されているものとする(第5の発明)。   In the above configuration, the inlet side member (15) and the outlet side member (16) are each formed of a cylindrical member, and the inner periphery of the other member (15) is formed on the outer peripheral surface of the one member (16). The outer diameter of the one member (16) is formed to be equal to the inner diameter of the other member (15) so that the surfaces engage with each other, and on the outer peripheral surface of the one member (16) and It is assumed that screw parts (15a, 16a) that can be screwed together are formed on the inner peripheral surface of the other member (15) (fifth invention).

これにより、上記入口側部材(15)及び上記出口側部材(16)は、上記吐出部材(11,21,31)を間に挟み込んだ状態で、双方に形成されているネジ部(15a,16a)を螺合することにより、容易に且つ確実に係合することができる。したがって、上記吐出ノズル(10)を容易に且つ確実に組み立てることができる。   Thereby, the said inlet side member (15) and the said outlet side member (16) are the thread parts (15a, 16a) formed in both in the state which pinched | interposed the said discharge member (11, 21, 31) between them. ) Can be easily and reliably engaged. Therefore, the discharge nozzle (10) can be assembled easily and reliably.

以上説明したように、第1の発明によれば、微細気泡発生装置(1)の吐出ノズル(10)において、オリフィス部(12,24,33)と衝突部(13)とを一体化して吐出部材(11,21,31)としたため、吐出ノズル(10)の組み立てを容易に行うことができるとともに、上記オリフィス部(12,24,33)と上記衝突部(13)との相対的な位置関係を一定に保つことができ、上記吐出ノズル(10)から吐出される微細気泡の気泡径のバラツキを少なくすることができる。   As explained above, according to the first invention, in the discharge nozzle (10) of the fine bubble generating device (1), the orifice portion (12, 24, 33) and the collision portion (13) are integrally discharged. Since the members (11, 21, 31) are used, the discharge nozzle (10) can be easily assembled, and the relative position between the orifice (12, 24, 33) and the collision part (13). The relationship can be kept constant, and variations in the bubble diameters of the fine bubbles discharged from the discharge nozzle (10) can be reduced.

第2の発明によれば、上記衝突部(13)の周縁部の一部とオリフィス部(12,24,33)の周縁部とを接続して、該衝突部(13)の周縁部とオリフィス部(12,24,33)の周縁部との間に導出口(13a)を設けたため、第1の発明の構成を簡単な構成により実現できるとともに、導出口(13a)を容易に形成することができる。   According to the second invention, a part of the peripheral portion of the collision portion (13) and the peripheral portion of the orifice portion (12, 24, 33) are connected, and the peripheral portion of the collision portion (13) and the orifice Since the outlet port (13a) is provided between the peripheral portions of the portions (12, 24, 33), the configuration of the first invention can be realized with a simple configuration and the outlet port (13a) can be easily formed. Can do.

第3の発明によれば、上記衝突部(13)の周縁部と、底部にオリフィス孔(12a,24c,33b)が設けられた有底筒状のオリフィス部(12,24,33)の開口側の周縁部とを接続するようにしたため、上記衝突部(13)及びオリフィス部(12a,24c,33b)をより容易に一体化することができる。さらに、衝突部(13)をオリフィス部(12a,24c,33b)から離間させた構造を容易に実現できるとともに、微細気泡を含んだ空気溶解水を一定の方向に向けて吐出する構成を容易に実現できる。   According to the third invention, the opening of the bottomed cylindrical orifice part (12, 24, 33) provided with the orifice hole (12a, 24c, 33b) at the peripheral part and the bottom part of the collision part (13). Since the side peripheral edge portion is connected, the collision portion (13) and the orifice portion (12a, 24c, 33b) can be more easily integrated. Furthermore, it is possible to easily realize a structure in which the collision part (13) is separated from the orifice part (12a, 24c, 33b) and to easily discharge the air-dissolved water containing fine bubbles in a certain direction. realizable.

第4の発明によれば、上記吐出部材(11,21,31)を、吐出ノズル(10)内の流路を形成する入口側部材(15)と出口側部材(16)との間で挟持した状態で、該入口側部材(15)及び出口側部材(16)を係合する構成としたため、吐出ノズル(10)を容易に組み立てることができる。   According to 4th invention, the said discharge member (11,21,31) is clamped between the inlet side member (15) and outlet side member (16) which form the flow path in a discharge nozzle (10) In this state, since the inlet side member (15) and the outlet side member (16) are engaged, the discharge nozzle (10) can be easily assembled.

第5の発明によれば、上記入口側部材(15)及び出口側部材(16)をネジ部(15a,16a)で螺合する構成としたため、吐出ノズル(10)を容易に且つ確実に組み立てることができる。   According to the fifth invention, since the inlet side member (15) and the outlet side member (16) are screwed together by the screw portions (15a, 16a), the discharge nozzle (10) is easily and reliably assembled. be able to.

以下、本発明の実施形態を図面に基づいて詳細に説明する。なお、以下の好ましい実施形態の説明は、本質的な例示に過ぎず、本発明、その適用あるいはその用途を制限することを意図するものではない。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of the preferred embodiment is merely an exemplification, and is not intended to limit the present invention, its application, or its use.

−微細気泡発生装置の構成−
図1に本発明の実施形態に係る吐出ノズル(10)を有する微細気泡発生装置(1)の概略構成を示す。
-Configuration of microbubble generator-
FIG. 1 shows a schematic configuration of a fine bubble generator (1) having a discharge nozzle (10) according to an embodiment of the present invention.

この微細気泡発生装置(1)は、人体への温浴効果等を狙って浴槽(4)内に微細気泡を供給するためのものであり、該浴槽(4)内の水(液体)を吸入するための吸込部(3)と、吸入した水の中に空気(気体)を導入するための空気導入部(5)と、水及び空気からなる気液混合流体を加圧するための加圧ポンプ(6)と、水に対する空気の溶解を促進させて空気溶解水(気体溶解液)を生成するための気体溶解器(7)と、該空気溶解水から微細気泡を発生させるとともに、該微細気泡を浴槽(4)内へ向かって吐出するための吐出ノズル(10)と、を備えている。そして、これらの吸込部(3)、空気導入部(5)、加圧ポンプ(6)、気体溶解器(7)及び吐出ノズル(10)を配管(2)によって接続することで、上記微細気泡発生装置(1)内には、上記浴槽(4)内の水を循環させる循環流路が形成されている。   This fine bubble generating device (1) is for supplying fine bubbles into the bathtub (4) aiming at a warm bath effect on the human body, and sucks water (liquid) in the bathtub (4) Suction section (3), an air introduction section (5) for introducing air (gas) into the sucked water, and a pressure pump for pressurizing a gas-liquid mixed fluid composed of water and air ( 6), a gas dissolver (7) for promoting dissolution of air in water to generate air-dissolved water (gas-dissolved liquid), and generating fine bubbles from the air-dissolved water, A discharge nozzle (10) for discharging into the bathtub (4). And by connecting these suction part (3), air introduction part (5), pressurization pump (6), gas dissolver (7) and discharge nozzle (10) by pipe (2), the above-mentioned fine bubbles A circulation channel for circulating the water in the bathtub (4) is formed in the generator (1).

すなわち、上記微細気泡発生装置(1)は、吸込部(3)から吸い込んだ浴槽(4)内の水に空気導入部(5)で空気を導入し、それらの水及び空気からなる気液混合流体を加圧ポンプ(6)によって気体溶解器(7)へ圧出した後、該気体溶解器(7)内において空気を水に溶解させて上記気液混合流体を空気溶解水とする。また、上記微細気泡発生装置(1)は、気体溶解器(7)において、空気溶解水内で溶解されずに残った余剰空気を取り除いた後、空気溶解水を吐出ノズル(10)へ送り出すように構成されている。このようにして送り出された空気溶解水は、上記吐出ノズル(10)で減圧等されて内部に微細気泡が発生した状態で浴槽(4)内に吐出される。   That is, the fine bubble generating device (1) introduces air into the water in the bathtub (4) sucked from the suction portion (3) by the air introduction portion (5), and the gas-liquid mixture composed of the water and air After the fluid is pumped out to the gas dissolver (7) by the pressurizing pump (6), air is dissolved in water in the gas dissolver (7), and the gas-liquid mixed fluid is used as air dissolved water. Further, the fine bubble generating device (1) removes the excess air remaining without being dissolved in the air dissolved water in the gas dissolver (7), and then sends the air dissolved water to the discharge nozzle (10). It is configured. The air-dissolved water sent out in this way is discharged into the bathtub (4) in a state where the pressure is reduced by the discharge nozzle (10) and fine bubbles are generated inside.

上記空気導入部(5)は、その内部を浴槽(4)から吸入された水が流れるように構成されているとともに、その水に吸入管(8b)を介して外部から吸い込んだ空気を混入するように構成されている。なお、上記吸入管(8b)上には、空気導入部(5)へ導入される空気の流量を調整するための吸気量調整弁(8c)と、上記空気導入部(5)内の空気が上記吸入管(8b)の上流側へ逆流するのを防止するための逆止弁(8d)とが設けられている。   The air introduction part (5) is configured so that water sucked from the bathtub (4) flows through the inside thereof, and air sucked from outside through the suction pipe (8b) is mixed in the water. It is configured as follows. On the intake pipe (8b), there is an intake air amount adjustment valve (8c) for adjusting the flow rate of air introduced into the air introduction part (5), and air in the air introduction part (5). A check valve (8d) is provided for preventing backflow to the upstream side of the suction pipe (8b).

さらに、上記吸入管(8b)上には、オゾンを発生させるためのオゾン発生機構(9a)が設けられている。このオゾン発生機構(9a)は、上記微細気泡発生装置(1)の運転が停止する前に、吸気フィルタ(9b)を介して吸気した空気中にオゾンを生成するように構成されている。上記オゾン発生機構(9a)で発生したオゾンは、上記空気導入部(5)へ導入され、空気とともに水に混合され、気液混合流体として加圧ポンプ(6)によって気体溶解器(7)へ圧送される。これにより、微細気泡発生装置(1)が停止して上記気体溶解器(7)内に水が残留した場合であっても、上記オゾンによって残留水は除菌される。なお、上記微細気泡発生装置(1)の運転時は、上記オゾン発生機構(9a)は作動しないため、空気導入部(5)にはオゾンの含まれていない空気が導入される。   Furthermore, an ozone generation mechanism (9a) for generating ozone is provided on the suction pipe (8b). The ozone generation mechanism (9a) is configured to generate ozone in the air taken in through the intake filter (9b) before the operation of the fine bubble generator (1) is stopped. The ozone generated by the ozone generation mechanism (9a) is introduced into the air introduction part (5), mixed with water together with air, and then supplied to the gas dissolver (7) as a gas-liquid mixed fluid by a pressure pump (6). Pumped. Thereby, even if the fine bubble generating device (1) is stopped and water remains in the gas dissolver (7), the residual water is sterilized by the ozone. During the operation of the fine bubble generator (1), the ozone generation mechanism (9a) does not operate, and therefore air that does not contain ozone is introduced into the air introduction part (5).

上記加圧ポンプ(6)は、浴槽(4)の水を循環流路内で循環させるための加圧手段であって、上記空気導入部(5)で空気が導入された水を加圧し、気液混合流体として加圧した状態で気体溶解器(7)へ送り出すように構成されている。   The pressurizing pump (6) is a pressurizing means for circulating the water in the bathtub (4) in the circulation flow path, and pressurizes the water into which air has been introduced by the air introduction part (5), It is configured to send out to the gas dissolver (7) in a pressurized state as a gas-liquid mixed fluid.

上記気体溶解器(7)は、有底筒状のタンク(7b)内で、上記加圧ポンプ(6)から圧送された気液混合流体中での水に対する空気の溶解を促進するとともに、その上部に設けられた排気弁(7a)から未溶解の余剰空気を排出するように構成されている。なお、上記排気弁(7a)から排出される余剰空気は、吸入管(8b)に一端側で接続された排気管(8a)の他端側から、上記排気管(8a)及び吸入管(8b)を介して空気導入部(5)へ導入されるようになっている。   The gas dissolver (7) promotes dissolution of air into water in the gas-liquid mixed fluid pumped from the pressure pump (6) in the bottomed cylindrical tank (7b), and An undissolved surplus air is discharged from an exhaust valve (7a) provided at the top. Excess air exhausted from the exhaust valve (7a) flows from the other end of the exhaust pipe (8a) connected to the suction pipe (8b) at one end to the exhaust pipe (8a) and the suction pipe (8b). ) Through the air introduction section (5).

上記吐出ノズル(10)は、具体的な構成については後述するが、上記気体溶解器(7)から排出された空気溶解水を減圧等して、該空気溶解水から微細気泡を発生させて浴槽(4)内へ吐出するように構成されている。   The discharge nozzle (10) will be described in detail later, but the air-dissolved water discharged from the gas dissolver (7) is depressurized to generate fine bubbles from the air-dissolved water, thereby creating a bathtub. (4) It is configured to discharge into the interior.

なお、上記吐出ノズル(10)から浴槽(4)内へ吐出された水は、再び上記吸込部(3)から吸い込まれて、上記循環流路を循環することになる。   The water discharged from the discharge nozzle (10) into the bathtub (4) is again sucked from the suction portion (3) and circulates in the circulation channel.

−吐出ノズルの構成−
以下で、上記吐出ノズル(10)の構成について図2及び図3に基づいて詳細に説明する。
-Composition of the discharge nozzle-
Below, the structure of the said discharge nozzle (10) is demonstrated in detail based on FIG.2 and FIG.3.

上記吐出ノズル(10)は、気体溶解器(7)から送出された空気溶解水を減圧等して上記空気溶解水に微細気泡を発生させる概略円柱状の吐出部材(11)と、該吐出部材(11)の入口側流路(15b)を形成するための有底円筒状の入口側部材(15)と、上記吐出部材(11)の出口側流路(16b)を形成するための円筒状の出口側部材(16)と、を備えている。すなわち、上記吐出ノズル(10)は、吐出部材(11)が入口側部材(15)と出口側部材(16)との間に配置されてなるもので、上記入口側部材(15)の入口側流路(15b)を介して上記吐出部材(11)に導入された空気溶解水に、該吐出部材(11)内で微細気泡を発生させて、該空気溶解水を微細気泡とともに上記出口側部材(16)の出口側流路(16b)を介して吐出するように構成されている。   The discharge nozzle (10) includes a substantially cylindrical discharge member (11) for generating fine bubbles in the air-dissolved water by decompressing the air-dissolved water sent from the gas dissolver (7), and the discharge member A cylindrical inlet-side member (15) having a bottomed cylindrical shape for forming the inlet-side flow channel (15b) of (11) and a cylindrical shape for forming the outlet-side flow channel (16b) of the discharge member (11) And an outlet side member (16). That is, the discharge nozzle (10) is configured such that the discharge member (11) is disposed between the inlet side member (15) and the outlet side member (16), and the inlet side of the inlet side member (15). Fine bubbles are generated in the discharge member (11) in the air-dissolved water introduced into the discharge member (11) through the flow path (15b), and the outlet-side member is combined with the fine bubbles. (16) It is comprised so that it may discharge via the exit side flow path (16b).

上記入口側部材(15)は、例えば樹脂や金属等の材料からなる有底円筒状の部材であって、平面視で底部の中央部分には、上記入口側流路(15b)を構成する貫通穴(15c)(通路)が形成されている。また、上記入口側部材(15)は、その内側に上記吐出部材(11)を収納した状態で、円筒状の出口側部材(16)に係合可能に構成されている。具体的には、有底円筒状の上記入口側部材(15)は、その内径が、円筒状の上記出口側部材(16)の外径と同等になるように形成されているとともに、内周面上に、該出口側部材(16)の外周面上に形成されたネジ部(16a)と螺合可能なネジ部(15a)が形成されている。   The inlet-side member (15) is a bottomed cylindrical member made of a material such as resin or metal, for example, and has a through-hole that forms the inlet-side flow path (15b) in the central portion of the bottom in plan view. A hole (15c) (passage) is formed. The inlet side member (15) is configured to be engageable with the cylindrical outlet side member (16) in a state where the discharge member (11) is housed inside. Specifically, the bottomed cylindrical inlet side member (15) is formed so that its inner diameter is equal to the outer diameter of the cylindrical outlet side member (16), and the inner circumference On the surface, there is formed a screw portion (15a) that can be screwed with a screw portion (16a) formed on the outer peripheral surface of the outlet side member (16).

上記出口側部材(16)も、例えば樹脂や金属等の材料からなる円筒状の部材であって、その内部が上記出口側流路(16b)(通路)を構成している。また、上記出口側部材(16)の外周面上には、上記入口側部材(15)のネジ部(15a)と螺合可能なネジ部(16a)が形成されている。   The outlet side member (16) is also a cylindrical member made of a material such as resin or metal, for example, and the inside thereof constitutes the outlet side flow path (16b) (passage). On the outer peripheral surface of the outlet side member (16), a screw portion (16a) that can be screwed with the screw portion (15a) of the inlet side member (15) is formed.

すなわち、上記入口側部材(15)及び出口側部材(16)は、上記吐出部材(11)に対して該吐出部材(11)の軸線方向に空気溶解水を流すように、互いに係合可能に構成されている。つまり、上記入口側部材(15)及び出口側部材(16)は、該入口側部材(15)の底部に形成されている貫通穴(15c)と該出口側部材(16)内の出口側流路(16b)とが同じ方向に延びるように、互いに接続されている。なお、詳しくは後述するように、上記吐出部材(11)は、その入口側のオリフィス孔(12a)が上記貫通穴(15c)の内方に向かって開口し、該吐出部材(11)の出口側の導出口(13a)が上記出口側流路(16b)の内方に向かって開口するように、上記入口側部材(15)と出口側部材(16)との間に配置されている。   That is, the inlet side member (15) and the outlet side member (16) can be engaged with each other so that the dissolved water flows in the axial direction of the discharge member (11) with respect to the discharge member (11). It is configured. That is, the inlet side member (15) and the outlet side member (16) are formed in the through hole (15c) formed in the bottom of the inlet side member (15) and the outlet side flow in the outlet side member (16). The passages (16b) are connected to each other so as to extend in the same direction. As will be described in detail later, the discharge member (11) has an inlet-side orifice hole (12a) opening inward of the through-hole (15c), and an outlet of the discharge member (11). The outlet port (13a) on the side is disposed between the inlet side member (15) and the outlet side member (16) so as to open toward the inner side of the outlet side channel (16b).

以上の構成により、上記入口側部材(15)と出口側部材(16)との間に、上記吐出部材(11)を挟み込んだ状態で、該入口側部材(15)及び出口側部材(16)のネジ部(15a,16a)を螺合することができ、該入口側部材(15)、吐出部材(11)及び出口側部材(16)の3つの部材を容易に一体化することができる。   With the above configuration, the inlet side member (15) and the outlet side member (16) with the discharge member (11) sandwiched between the inlet side member (15) and the outlet side member (16). The threaded portions (15a, 16a) can be screwed together, and the three members of the inlet side member (15), the discharge member (11) and the outlet side member (16) can be easily integrated.

しかも、上述のような構成にすることで、上記入口側部材(15)及び出口側部材(16)によって、吐出部材(11)に対して入口側流路(15b)及び出口側流路(16b)を容易に形成することができる。   In addition, with the configuration as described above, the inlet side channel (15b) and the outlet side channel (16b) with respect to the discharge member (11) by the inlet side member (15) and the outlet side member (16). ) Can be easily formed.

上記吐出部材(11)は、図3に示すように、流路断面積を小さくするためのオリフィス孔(12a)が形成されたオリフィス部(12)と、該オリフィス部(12)のオリフィス孔(12a)から流出した空気溶解水が衝突する衝突部(13)とを備えている。詳しくは、上記吐出部材(11)は、概略円柱状の外形を有していて、底部にオリフィス孔(12a)が形成された有底円筒状の上記オリフィス部(12)の開口部分に、その開口部分の内径よりも外径の小さい円板状の上記衝突部(13)が取り付けられてなる。   As shown in FIG. 3, the discharge member (11) includes an orifice part (12) in which an orifice hole (12a) for reducing the cross-sectional area of the flow path is formed, and an orifice hole (12) in the orifice part (12). 12a) and a collision part (13) with which the air-dissolved water flowing out from 12a collides. Specifically, the discharge member (11) has a substantially columnar outer shape, and the opening portion of the bottomed cylindrical orifice portion (12) in which the orifice hole (12a) is formed in the bottom portion thereof. The disk-shaped collision part (13) having an outer diameter smaller than the inner diameter of the opening is attached.

上記オリフィス部(12)は、その外径が上記出口側部材(16)の外径と同等で且つ上記入口側部材(15)の内径と同等になるように形成されているとともに、内径は、上記出口側部材(16)の内径と同等になるように形成されている。また、上記オリフィス部(12)の底部には、平面視で中央部分に該底部を貫通するようにオリフィス孔(12a)が形成されている。このオリフィス孔(12a)は、上記オリフィス部(12)の底部の厚み方向中央部から該底部の表面に向かって徐々に径が大きくなるように設けられている。すなわち、上記オリフィス孔(12a)は、その内部で流路断面積をさらに絞るように形成されている。   The orifice portion (12) is formed so that the outer diameter thereof is equal to the outer diameter of the outlet side member (16) and the inner diameter of the inlet side member (15). It is formed so as to be equal to the inner diameter of the outlet side member (16). In addition, an orifice hole (12a) is formed in the bottom portion of the orifice portion (12) so as to penetrate the bottom portion in a central portion in plan view. The orifice hole (12a) is provided so that its diameter gradually increases from the center in the thickness direction of the bottom of the orifice (12) toward the surface of the bottom. That is, the orifice hole (12a) is formed so as to further reduce the flow path cross-sectional area inside.

上記衝突部(13)は、略円板状に形成されていて、その厚みが上記オリフィス部(12)の側壁の高さよりも小さくなるように形成されている。上記衝突部(13)は、その外周縁部(周縁部)で上記オリフィス部(12)の開口端部(周縁部)に接続されている。具体的には、上記衝突部(13)は、有底円筒状の上記オリフィス部(12)の開口部に対し、円板表面が該開口部の端面と略面一になるとともに上記オリフィス孔(12a)が平面視で中央部分に位置するように配置されていて、その状態で、径方向外方に延びる4つの接続部(17)によって上記オリフィス部(12)の開口端部に接続されている。これらの接続部(17)は、略円板状の衝突部(13)の外周縁部から有底円筒状のオリフィス部(12)の開口端部へ向かって延びる略矩形状に形成されていて、該衝突部(13)とオリフィス部(12)とを、平面視で略90度の等間隔の位置で接続するように設けられている。なお、上記接続部(17)は、上記オリフィス部(12)の開口端部と溶接によって接続されている。   The said collision part (13) is formed in the substantially disc shape, and is formed so that the thickness may become smaller than the height of the side wall of the said orifice part (12). The said collision part (13) is connected to the opening edge part (periphery part) of the said orifice part (12) in the outer peripheral part (peripheral part). Specifically, the collision portion (13) has a disk surface substantially flush with an end surface of the orifice portion (12) with respect to the opening portion of the bottomed cylindrical orifice portion (12) and the orifice hole ( 12a) is arranged so as to be located in the central part in plan view, and in that state, is connected to the opening end of the orifice part (12) by four connecting parts (17) extending radially outward. Yes. These connecting portions (17) are formed in a substantially rectangular shape extending from the outer peripheral edge portion of the substantially disc-shaped collision portion (13) toward the opening end portion of the bottomed cylindrical orifice portion (12). The collision part (13) and the orifice part (12) are provided so as to be connected at equal intervals of approximately 90 degrees in plan view. The connecting portion (17) is connected to the opening end portion of the orifice portion (12) by welding.

これにより、上記衝突部(13)は、有底筒状の上記オリフィス部(12)の底部に対して該オリフィス部(12)の筒軸方向に所定距離、離間した位置に配置された状態で該オリフィス部(12)に接続される。また、上記吐出部材(11)には、その端面に、上記オリフィス部(12)、衝突部(13)及び接続部(17)によって、平面視で上記オリフィス孔(12a)から均等な距離の位置に扇状の4つの導出口(13a)が形成される。   As a result, the collision part (13) is disposed at a position separated from the bottom of the bottomed cylindrical orifice part (12) by a predetermined distance in the cylinder axis direction of the orifice part (12). Connected to the orifice (12). Further, the discharge member (11) is positioned at an equal distance from the orifice hole (12a) in plan view by the orifice part (12), the collision part (13) and the connection part (17) on the end surface thereof. Four fan-shaped outlets (13a) are formed.

上述のような吐出部材(11)の構成において、上記オリフィス部(12)のオリフィス孔(12a)へ流入する空気溶解水は、該オリフィス孔(12a)を通過する際に減圧された後、上記衝突部(13)に衝突して、衝突水噴流と呼ばれる膜状の流れとなり、該衝突部(13)とオリフィス部(12)の底部との間の隙間(18)内を径方向外方へ放射状に流れる。その際に、発生する空気溶解水の流れの乱れによって、該空気溶解水内の微細気泡が小型化する。その後、微細気泡を含んだ空気溶解水は、上記吐出部材(11)の端面に形成された4つの導出口(13a)から流出する。   In the configuration of the discharge member (11) as described above, the dissolved air flowing into the orifice hole (12a) of the orifice portion (12) is decompressed when passing through the orifice hole (12a), and then It collides with the collision part (13) and becomes a film-like flow called a collision water jet, and the inside of the gap (18) between the collision part (13) and the bottom of the orifice part (12) is radially outward. Flows radially. At that time, the fine bubbles in the air-dissolved water are reduced in size due to the turbulence of the generated air-dissolved water flow. Thereafter, the air-dissolved water containing fine bubbles flows out from the four outlets (13a) formed on the end face of the discharge member (11).

したがって、上述のような構成によって、空気溶解水を減圧するためのオリフィス部(12)と、減圧した空気溶解水を衝突させて微細気泡を発生させるための衝突部(13)とを一体化した吐出部材(11)を得ることができ、これにより、従来のようにオリフィス部と衝突部とを別々に組み付ける必要がなくなるので、その分、製造時の組立作業の簡素化を図ることができ、作業性の向上を図れる。   Therefore, with the configuration as described above, the orifice part (12) for decompressing the air-dissolved water and the impact part (13) for colliding the decompressed air-dissolved water to generate fine bubbles are integrated. The discharge member (11) can be obtained, thereby eliminating the need to separately assemble the orifice portion and the collision portion as in the prior art, and accordingly, the assembly work at the time of manufacture can be simplified. Workability can be improved.

しかも、上述のように、オリフィス部(12)と衝突部(13)とを一体化することで、両者の隙間(18)の間隔を該衝突部(13)の全面に亘って確実に均一にすることができる。これにより、上記隙間(18)内を径方向外方へ放射状に流れる空気溶解水の流れを均一にすることができ、該空気溶解水中に均一な微細気泡を発生させることができる。   Moreover, as described above, by integrating the orifice part (12) and the collision part (13), the gap (18) between the two is surely made uniform over the entire surface of the collision part (13). can do. Thereby, the flow of the air-dissolved water flowing radially outward in the gap (18) can be made uniform, and uniform fine bubbles can be generated in the air-dissolved water.

さらに、上記4つの導出口(13a)は、概略円柱状の吐出部材(11)の端面に、平面視でオリフィス孔(12a)から均等な距離の位置に設けられているため、微細気泡を含んだ気体溶解水は、上記各導出口(13a)から均等な流量で上記吐出部材(11)の軸線方向に吐出される。これにより、上記吐出部材(11)の隙間(18)内では、衝突部(13)に衝突した空気溶解水が上記各導出口(13a)まで流れる距離が均一になるため、該空気溶解水中により均一な微細気泡を発生させることができる。しかも、上記空気溶解水は、上記吐出部材(11)の軸線方向に吐出されるため、該吐出部材(11)の出口側に形成された出口側流路(16b)をそのまま軸線方向に流れて、浴槽(4)内に効率良く吐出される。   Further, the four outlets (13a) are provided on the end face of the substantially cylindrical discharge member (11) at a position at an equal distance from the orifice hole (12a) in a plan view, and thus contain fine bubbles. The gas-dissolved water is discharged from the outlets (13a) in the axial direction of the discharge member (11) at an equal flow rate. As a result, in the gap (18) of the discharge member (11), the distance through which the air-dissolved water colliding with the collision portion (13) flows to the outlets (13a) is uniform. Uniform fine bubbles can be generated. Moreover, since the air-dissolved water is discharged in the axial direction of the discharge member (11), the air-dissolved water flows in the axial direction as it is through the outlet side flow path (16b) formed on the outlet side of the discharge member (11). , Efficiently discharged into the bathtub (4).

なお、上記図2及び図3に示すように、吐出部材(11)のオリフィス部(12)の開口端面には、出口側部材(16)の開口端面に形成された環状の突条部(16c)と嵌合する環状の溝部(11a)が形成されている。   As shown in FIGS. 2 and 3, the annular protrusion (16c) formed on the opening end surface of the outlet side member (16) is formed on the opening end surface of the orifice portion (12) of the discharge member (11). ) And an annular groove (11a) are formed.

−実施形態の効果−
以上より、この実施形態によれば、空気溶解水を減圧するためのオリフィス孔(12a)が形成されたオリフィス部(12)と、該オリフィス孔(12a)を通過した空気溶解水を衝突させて微細気泡を発生させるための衝突部(13)とを一体化して吐出部材(11)としたため、オリフィス部や衝突部を別々に組み付ける必要がなくなり、吐出ノズルの組立を容易に行うことができる。しかも、上述のように、オリフィス部(12)と衝突部(13)とを一体化することで、両者の間隔を均一にすることができ、吐出部材(11)から吐出される微細気泡の気泡径のバラツキを少なくすることができる。
-Effect of the embodiment-
As described above, according to this embodiment, the orifice part (12) in which the orifice hole (12a) for reducing the pressure of the dissolved air is collided with the dissolved air that has passed through the orifice hole (12a). Since the discharge member (11) is integrated with the collision part (13) for generating fine bubbles, it is not necessary to separately assemble the orifice part and the collision part, and the discharge nozzle can be easily assembled. Moreover, as described above, by integrating the orifice part (12) and the collision part (13), the distance between them can be made uniform, and the fine bubbles discharged from the discharge member (11) The variation in diameter can be reduced.

また、上記吐出部材(11)は、有底円筒状のオリフィス部(12)の開口端部と、該オリフィス部(12)の開口部よりも外径の小さい円板状の衝突部(13)の外周縁部とが接続部(17)によって接続されて一体化されているため、上記オリフィス部(12)及び衝突部(13)の一体化を簡単な構成によって実現できるとともに、浴槽(4)内の一定方向に向かって微細気泡を吐出する吐出ノズル(10)を容易に得ることができる。   The discharge member (11) includes an opening end portion of a bottomed cylindrical orifice portion (12) and a disk-shaped collision portion (13) having an outer diameter smaller than that of the orifice portion (12). Since the outer peripheral edge portion is connected and integrated by the connection portion (17), the orifice portion (12) and the collision portion (13) can be integrated with a simple configuration, and the bathtub (4) It is possible to easily obtain the discharge nozzle (10) that discharges fine bubbles in a certain direction.

また、上記入口側部材(15)と出口側部材(16)との間に吐出部材(11)を挟持した状態で、該入口側部材(15)及び出口側部材(16)を螺合させることにより、上記吐出ノズル(10)を組み立てることができるため、吐出ノズル(10)を容易且つ確実に組み立てることができる。   Further, the inlet side member (15) and the outlet side member (16) are screwed together while the discharge member (11) is sandwiched between the inlet side member (15) and the outlet side member (16). Thus, since the discharge nozzle (10) can be assembled, the discharge nozzle (10) can be assembled easily and reliably.

−実施形態の変形例1−
図4に、上記実施形態の変形例1に係る吐出部材(21)の概略構成を示す。この吐出部材(21)は、衝突部(13)とオリフィス部(24)との接続構造が上記実施形態とは異なるだけなので、以下の説明では、異なる部分についてのみ説明する。
-Modification 1 of embodiment-
In FIG. 4, schematic structure of the discharge member (21) which concerns on the modification 1 of the said embodiment is shown. Since the discharge member (21) is different from the above embodiment only in the connection structure between the collision portion (13) and the orifice portion (24), only the different portions will be described in the following description.

具体的には、円板状の衝突部(13)は、その外周側に位置する環状の平板部材からなる取付部(22)と接続部(23)を介して接続されている。すなわち、上記衝突部(13)の外周縁部から径方向外方へ延びる接続部(23)は、上記取付部(22)の内周側に溶接によって接続されている。   Specifically, the disk-shaped collision part (13) is connected via a connection part (23) and an attachment part (22) made of an annular flat plate member located on the outer peripheral side thereof. That is, the connection portion (23) extending radially outward from the outer peripheral edge portion of the collision portion (13) is connected to the inner peripheral side of the attachment portion (22) by welding.

上記取付部(22)は、概略有底円筒状のオリフィス部(24)の開口端面上にOリング(25)を介して取り付けられている。具体的には、上記取付部(22)のオリフィス部(24)との取付面及び該オリフィス部(24)の開口端面には、該取付部(22)とオリフィス部(24)とを組み合わせた状態で上記Oリング(25)を収容するための環状空間を形成するように、それぞれ、環状の溝部(22a,24a)が形成されている。そして、上記取付部(22)は、上記オリフィス部(24)に対して嵌合によって接続されている。   The attachment portion (22) is attached via an O-ring (25) on the opening end face of the generally bottomed cylindrical orifice portion (24). Specifically, the mounting portion (22) and the orifice portion (24) are combined with the mounting surface of the mounting portion (22) with the orifice portion (24) and the opening end surface of the orifice portion (24). The annular grooves (22a, 24a) are formed so as to form annular spaces for accommodating the O-ring (25) in the state. The attachment portion (22) is connected to the orifice portion (24) by fitting.

このように、上記Oリング(25)を介して取付部(22)とオリフィス部(24)とを嵌合によって接続することで、該取付部(22)とオリフィス部(24)との隙間から空気溶解水が外部へ漏れ出すのを確実に防止することができるとともに、上記取付部(22)を上記オリフィス部(24)から取り外して上記衝突部(13)と上記オリフィス部(24)とを離間することにより、両者の間に挟まったゴミ等を簡単に除去することができる。   Thus, by connecting the mounting portion (22) and the orifice portion (24) by fitting through the O-ring (25), the clearance between the mounting portion (22) and the orifice portion (24) can be reduced. The air-dissolved water can be surely prevented from leaking to the outside, and the mounting portion (22) can be removed from the orifice portion (24) to connect the collision portion (13) and the orifice portion (24). By separating, dust and the like sandwiched between the two can be easily removed.

なお、この変形例では、上記図4に示すように、上記オリフィス部(24)の開口端面が段状に形成されているため、該オリフィス部(24)に上記取付部(22)を取り付けた状態で該取付部(22)の径方向外方に、出口側部材(16)の開口端面に形成された環状の凸部(16c)と嵌合するように、環状の溝部(24b)が形成されている。また、上記図4において、符号24cは、オリフィス孔である。   In this modified example, as shown in FIG. 4, the opening end face of the orifice part (24) is formed in a step shape, and therefore the attachment part (22) is attached to the orifice part (24). An annular groove (24b) is formed outside the mounting portion (22) in the state so as to be fitted with an annular convex portion (16c) formed on the opening end surface of the outlet side member (16). Has been. Further, in FIG. 4, reference numeral 24 c is an orifice hole.

−実施形態の変形例2−
図5に、上記実施形態の変形例2に係る吐出部材(31)の概略構成を示す。この吐出部材(31)は、上記変形例1と同様、衝突部(13)とオリフィス部(33)との接続構造が異なるだけなので、以下の説明では、異なる部分についてのみ説明する。
-Modification 2 of embodiment-
In FIG. 5, schematic structure of the discharge member (31) which concerns on the modification 2 of the said embodiment is shown. Since the discharge member (31) is different only in the connection structure between the collision part (13) and the orifice part (33) as in the first modification, only the different parts will be described in the following description.

具体的には、円板状の衝突部(13)と接続部(23)を介して接続される取付部(32)が、該衝突部(13)や接続部(23)よりも肉厚に形成されていて、概略有底筒状のオリフィス部(33)の底部に取り付けられている。   Specifically, the attachment part (32) connected to the disk-shaped collision part (13) via the connection part (23) is thicker than the collision part (13) or the connection part (23). It is formed and is attached to the bottom of the generally bottomed cylindrical orifice (33).

詳しくは、上記取付部(32)は、上記オリフィス部(33)の側壁と同等の高さとなるような肉厚に形成されている。そして、上記変形例1と同様、上記取付部(32)のオリフィス部(33)の底部との取付面及び該オリフィス部(33)の取り付け部分には、該取付部(32)とオリフィス部(33)とを組み合わせた状態でOリング(25)を収容するための環状空間を形成するように、それぞれ、環状の溝部(32a,33a)が形成されている。   Specifically, the attachment portion (32) is formed with a thickness that is equivalent to the side wall of the orifice portion (33). As in the first modification, the mounting surface of the mounting portion (32) with the bottom of the orifice portion (33) and the mounting portion of the orifice portion (33) include the mounting portion (32) and the orifice portion ( An annular groove (32a, 33a) is formed so as to form an annular space for accommodating the O-ring (25) in a combined state with 33).

上述のような構成によっても、上記取付部(32)とオリフィス部(33)との隙間から空気溶解水が外部へ漏れ出すのを確実に防止することができる。   Even with the above-described configuration, it is possible to reliably prevent the air-dissolved water from leaking outside through the gap between the mounting portion (32) and the orifice portion (33).

なお、上記図5において、符号33bは、オリフィス孔である。   In FIG. 5, reference numeral 33b is an orifice hole.

(その他の実施形態)
上記実施形態については、以下のような構成としてもよい。
(Other embodiments)
About the said embodiment, it is good also as the following structures.

上記実施形態では、有底筒状のオリフィス部(12)と円板状の衝突部(13)とを一体化することにより吐出部材(11)を構成しているが、この限りではなく、互いに接続して一体化できるような形状であれば、オリフィス部及び衝突部の形状はどのような形状であってもよい。例えば、オリフィス部の形状が円板状であって、衝突部の形状が有底円筒状であってもよい。   In the above embodiment, the discharge member (11) is configured by integrating the bottomed cylindrical orifice portion (12) and the disc-shaped collision portion (13). The orifice part and the collision part may have any shape as long as they can be connected and integrated. For example, the shape of the orifice portion may be a disk shape, and the shape of the collision portion may be a bottomed cylindrical shape.

また、上記実施形態では、上記吐出部材(11)の導出口(13a)は、上記衝突部(13)の外周縁部の一部から延びるように形成された接続部(17)と、上記有底筒状のオリフィス部(12)の開口端部とを接続することにより、該衝突部(13)、オリフィス部(12)及び接続部(17)によって区画形成されているが、この限りでなく、オリフィス孔を通過して衝突部と衝突した空気溶解水が導出されるような構成であれば、吐出部材のどの位置に設けてもよいし、どのような大きさや形状であってもよい。例えば、衝突部に貫通孔を設けて、該貫通孔を導出口としてもよい。   In the above embodiment, the outlet (13a) of the discharge member (11) includes the connecting portion (17) formed so as to extend from a part of the outer peripheral edge of the collision portion (13), and the presence of the outlet. By connecting with the opening end of the bottom cylindrical orifice (12), the collision part (13), the orifice (12) and the connection (17) are defined, but not limited to this. As long as the structure is such that air dissolved water that has passed through the orifice hole and collided with the collision portion is derived, it may be provided at any position of the discharge member, and may have any size or shape. For example, a through hole may be provided in the collision portion, and the through hole may be used as the outlet.

また、上記実施形態では、上記オリフィス孔(12a)は、オリフィス部(12)の底部の厚み方向中央部分に向かって徐々に径が小さくなるように形成されているが、この限りでなく、流路断面積を小さくして、該オリフィス孔を通過する空気溶解水を減圧するような構成であれば、どのような大きさや形状であってもよい。   In the above embodiment, the orifice hole (12a) is formed so that the diameter gradually decreases toward the central portion in the thickness direction of the bottom of the orifice portion (12). Any size and shape may be used as long as the cross-sectional area of the road is reduced and the dissolved water passing through the orifice hole is decompressed.

また、上記実施形態では、入口側部材(15)と出口側部材(16)とで吐出部材(11)を挟持した状態で、該入口側部材(15)と出口側部材(16)とが螺合するように構成されているが、この限りでなく、入口側部材と出口側部材とが吐出部材を挟持した状態で係合するような構成であれば、どのような構成であってもよい。   In the above embodiment, the inlet side member (15) and the outlet side member (16) are screwed in a state where the discharge member (11) is sandwiched between the inlet side member (15) and the outlet side member (16). However, the present invention is not limited to this, and any configuration may be used as long as the inlet side member and the outlet side member are engaged with each other while sandwiching the discharge member. .

以上説明したように、本発明の構成により、微細気泡を浴槽内に吐出するための吐出ノズルにおいて、組立作業の作業性の向上を図れるとともに微細気泡の均一化を図れるため、微細気泡発生装置の吐出ノズルの構造として特に有用である。   As described above, according to the configuration of the present invention, in the discharge nozzle for discharging the fine bubbles into the bathtub, the workability of the assembly work can be improved and the fine bubbles can be made uniform. This is particularly useful as the structure of the discharge nozzle.

本発明の実施形態に係る微細気泡発生装置の概略構成を示す図である。It is a figure showing a schematic structure of a fine bubble generating device concerning an embodiment of the present invention. 吐出ノズルの概略構成を示す、(A)正面図、(B)(A)におけるIIb−IIb線断面図、である。It is a sectional view taken along line IIb-IIb in (A) front view and (B) (A), showing a schematic configuration of the discharge nozzle. 吐出部材の概略構成を示す、(A)正面図、(B)(A)におけるIIIb−IIIb線断面図、である。3A is a front view, and FIG. 3B is a cross-sectional view taken along line IIIb-IIIb in FIG. 変形例1に係る吐出部材の図3相当図である。FIG. 6 is a view corresponding to FIG. 3 illustrating a discharge member according to Modification Example 1; 変形例2に係る吐出部材の図3相当図である。FIG. 10 is a view corresponding to FIG. 3 illustrating a discharge member according to Modification 2.

符号の説明Explanation of symbols

1 微細気泡発生装置
10 吐出ノズル
11,21,31 吐出部材
12,24,33 オリフィス部
12a,24c,33b オリフィス孔
13 衝突部
13a 導出口
15 入口側部材
15a ネジ部
15b 入口側流路
15c 貫通穴(通路)
16 出口側部材
16a ネジ部
16b 出口側流路(通路)
DESCRIPTION OF SYMBOLS 1 Fine bubble generator 10 Discharge nozzle 11,21,31 Discharge member 12,24,33 Orifice part 12a, 24c, 33b Orifice hole 13 Colliding part 13a Outlet 15 Inlet side member 15a Screw part 15b Inlet side flow path 15c Through hole (aisle)
16 Outlet side member 16a Screw part 16b Outlet side flow path (passage)

Claims (5)

気体が液体中に加圧溶解された気体溶解液を減圧して微細気泡を吐出するように、内部に流路が形成された吐出ノズル(10)を有する微細気泡発生装置であって、
上記吐出ノズル(10)は、
上記流路の流路断面積を小さくするためのオリフィス孔(12a,24c,33b)が形成されたオリフィス部(12,24,33)と、
上記オリフィス孔(12a,24c,33b)から流出する気体溶解液が衝突して該気体溶解液内で微細気泡を小径化するように、上記オリフィス孔(12a,24c,33b)の流路出口側に設けられた衝突部(13)とを備え、
上記オリフィス部(12,24,33)及び衝突部(13)は、互いに接続されて一体化されることにより、上記微細気泡を吐出する吐出部材(11,21,31)を構成していることを特徴とする微細気泡発生装置。
A fine bubble generating device having a discharge nozzle (10) having a flow path formed therein so as to discharge a fine bubble by depressurizing a gas-dissolved solution in which gas is pressure-dissolved in a liquid,
The discharge nozzle (10)
An orifice portion (12, 24, 33) in which an orifice hole (12a, 24c, 33b) for reducing the channel cross-sectional area of the channel is formed;
The flow path outlet side of the orifice hole (12a, 24c, 33b) so that the gas solution flowing out from the orifice hole (12a, 24c, 33b) collides and the fine bubbles are reduced in diameter in the gas solution. And a collision part (13) provided in the
The orifice part (12, 24, 33) and the collision part (13) are connected to each other and integrated to form a discharge member (11, 21, 31) that discharges the fine bubbles. A microbubble generator characterized by the above.
請求項1に記載の微細気泡発生装置において、
上記吐出部材(11,21,31)は、上記衝突部(13)の周縁部と上記オリフィス部(12,24,33)の周縁部との間に上記微細気泡を含んだ気体溶解液の導出口(13a)が形成されるように、上記衝突部(13)の周縁部の一部が上記オリフィス部(12,24,33)の周縁部と接続されていることを特徴とする微細気泡発生装置。
In the fine bubble generator of Claim 1,
The discharge member (11, 21, 31) is configured to guide the gas solution containing the fine bubbles between the peripheral portion of the collision portion (13) and the peripheral portion of the orifice portion (12, 24, 33). Microbubble generation characterized in that a part of the peripheral part of the collision part (13) is connected to the peripheral part of the orifice part (12, 24, 33) so that an outlet (13a) is formed apparatus.
請求項2に記載の微細気泡発生装置において、
上記オリフィス部(12,24,33)は、略有底筒状に形成されているとともに、その底部に上記オリフィス孔(12a,24c,33b)が設けられていて、
上記衝突部(13)の周縁部は、上記導出口(13a)が上記オリフィス部(12,24,33)の筒軸方向に向かって開口するように、該オリフィス部(12,24,33)の開口側の周縁部と接続されていることを特徴とする微細気泡発生装置。
In the fine bubble generator of Claim 2,
The orifice part (12, 24, 33) is formed in a substantially bottomed cylindrical shape, and the orifice hole (12a, 24c, 33b) is provided in the bottom part thereof,
The peripheral part of the collision part (13) is arranged so that the outlet port (13a) opens toward the cylinder axis of the orifice part (12, 24, 33). A microbubble generator characterized in that the microbubble generator is connected to a peripheral edge portion on the opening side.
請求項2,3に記載の微細気泡発生装置において、
上記吐出ノズル(10)は、
上記オリフィス孔(12a,24c,33b)の入口側流路(15b)を形成するための通路(15c)が内部に形成された入口側部材(15)と、
上記導出口(13a)の出口側流路を形成するための通路(16b)が内部に形成された出口側部材(16)とを備え、
上記入口側部材(15)及び上記出口側部材(16)は、上記吐出部材(11,21,31)を挟持した状態で、互いに係合可能に構成されていることを特徴とする微細気泡発生装置。
In the fine bubble generator of Claims 2 and 3,
The discharge nozzle (10)
An inlet side member (15) in which a passage (15c) for forming an inlet side flow path (15b) of the orifice hole (12a, 24c, 33b) is formed;
An outlet side member (16) having a passage (16b) formed therein for forming an outlet side flow path of the outlet (13a);
The inlet side member (15) and the outlet side member (16) are configured to be able to engage with each other with the discharge member (11, 21, 31) sandwiched therebetween. apparatus.
請求項4に記載の微細気泡発生装置において、
上記入口側部材(15)及び上記出口側部材(16)は、それぞれ円筒状の部材からなり、一方の部材(16)の外周面上に他方の部材(15)の内周面が係合するように、該一方の部材(16)の外径が他方の部材(15)の内径と同等になるよう形成されているとともに、該一方の部材(16)の外周面上及び他方の部材(15)の内周面上に互いに螺合可能なネジ部(15a,16a)が形成されていることを特徴とする微細気泡発生装置。
In the fine bubble generator of Claim 4,
The inlet side member (15) and the outlet side member (16) are each made of a cylindrical member, and the inner peripheral surface of the other member (15) engages with the outer peripheral surface of the one member (16). As described above, the outer diameter of the one member (16) is formed to be equal to the inner diameter of the other member (15), and the outer surface of the one member (16) and the other member (15 ) Is formed with screw parts (15a, 16a) that can be screwed together.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012236147A (en) * 2011-05-12 2012-12-06 Noritz Corp Bubble generator
JP2017047419A (en) * 2015-09-02 2017-03-09 豊明 福井 Nano-bubble generation device
JP2018099687A (en) * 2018-02-05 2018-06-28 東芝ライフスタイル株式会社 Fine bubble generator, water filling case and home electrical appliance including fine bubble generator
JP2020054987A (en) * 2018-09-26 2020-04-09 リンナイ株式会社 Fine bubble generation nozzle

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Publication number Priority date Publication date Assignee Title
JP2007216149A (en) * 2006-02-16 2007-08-30 Univ Of Tokyo Micro-foam production apparatus
JP2008105008A (en) * 2006-03-03 2008-05-08 Mg Grow Up:Kk Static fluid mixing apparatus
JP3141961U (en) * 2008-03-13 2008-05-29 株式会社井上産業 Fine bubble mixer
JP2008149209A (en) * 2006-12-14 2008-07-03 Marcom:Kk Fine air bubble producer and fine air bubble supply system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007216149A (en) * 2006-02-16 2007-08-30 Univ Of Tokyo Micro-foam production apparatus
JP2008105008A (en) * 2006-03-03 2008-05-08 Mg Grow Up:Kk Static fluid mixing apparatus
JP2008149209A (en) * 2006-12-14 2008-07-03 Marcom:Kk Fine air bubble producer and fine air bubble supply system
JP3141961U (en) * 2008-03-13 2008-05-29 株式会社井上産業 Fine bubble mixer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012236147A (en) * 2011-05-12 2012-12-06 Noritz Corp Bubble generator
JP2017047419A (en) * 2015-09-02 2017-03-09 豊明 福井 Nano-bubble generation device
JP2018099687A (en) * 2018-02-05 2018-06-28 東芝ライフスタイル株式会社 Fine bubble generator, water filling case and home electrical appliance including fine bubble generator
JP2020054987A (en) * 2018-09-26 2020-04-09 リンナイ株式会社 Fine bubble generation nozzle
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