WO2018117040A1

WO2018117040A1 - Device and system for generating gas-liquid containing microbubbles

Info

Publication number: WO2018117040A1
Application number: PCT/JP2017/045363
Authority: WO
Inventors: 神野　浩; 太郎神野
Original assignee: オオノ開發株式会社
Priority date: 2016-12-19
Filing date: 2017-12-18
Publication date: 2018-06-28
Also published as: KR20190095311A; JPWO2018117040A1; TW201827121A; JP7050304B2; CN110167662A

Abstract

The problem addressed by the present invention is to provide a gas-liquid mixing device, a pump device, a device for microbubble formation, and a system that can efficiently generate a gas-liquid containing microbubbles and can be made compact. This gas-liquid mixing device 100 for generating a gas-liquid containing microbubbles is provided with: a container main body 101 having an outer wall and an inner wall; a liquid introducing unit 103 for introducing a liquid into the container main body 101; a gas introducing unit 102 for introducing a gas into the container main body 101; a swirling unit 110 inside the container main body 101 for generating the gas-liquid by swirling the liquid and the gas; and a gas-liquid discharge unit 104 for discharging the gas-liquid.

Description

Apparatus and system for generating gas-liquid containing fine bubbles

The present invention relates to a gas-liquid mixing device, a pump device, a bubble refining device, and a system for generating a gas-liquid containing fine bubbles, and more particularly to refining bubbles in a gas-liquid.

2. Description of the Related Art Conventionally, there are known micro-bubble generating devices for efficiently dissolving a gas such as air or gas in water or other liquids, for example, purifying water quality and reviving a water environment. In addition to large-scale water environments such as lakes, ponds, and rivers, microbubble generators have recently been required to be applied to small-scale water environments such as bathtubs and waterworks. For example, Patent Document 1 discloses a swirl type fine bubble generator. In the fine bubble generating device described in Patent Document 1, a high-speed swirling flow is generated in a gas-liquid two-phase gas-liquid, and a swirling cavity portion made of a negative pressure gas is formed in the swirling flow center by a gas-liquid centrifugal separation action. The gas is sheared by the difference in swirling speed between the high-speed swirling flow of gas and liquid and the negative pressure cavity, and the bubbles are made into fine bubbles. Therefore, since it is necessary to swirl the gas and liquid at high speed to generate fine bubbles, a large pump for pumping the liquid into the container at a high pressure and a large container for increasing the swirl radius are necessary. It was. Therefore, although the fine bubble generating device described in Patent Document 1 can be used in a large-scale water environment, it can be used in a small-scale water environment such as a home water purifier, a shower head, or a bathtub. There was a problem that it was difficult to apply to.

JP 2012-239953 A

An object of the present invention is to obtain a compact system for efficiently generating gas-liquid containing fine bubbles capable of performing from the generation of bubbles to the miniaturization of the bubbles by pumping of the liquid.

As a result of research and development, the present inventors have a gas-liquid mixing device having a compact configuration capable of efficiently generating gas-liquid containing fine bubbles, and pumping gas-liquid while miniaturizing bubbles contained in gas-liquid. The present invention has completed a pump device that can perform the operation and a bubble refining device that can refine the bubbles contained in the gas-liquid simply by passing the gas-liquid containing bubbles. By using one or more of these devices, a compact system for efficiently generating gas-liquid containing fine bubbles can be realized. In the system of the present invention, the processes from gas intake and bubble generation to bubble miniaturization can be performed by liquid pumping.

For example, the present invention provides the following items.
(Item 1)
A gas-liquid mixing device for generating a gas-liquid containing fine bubbles,
A container body having an outer wall and an inner wall;
A liquid introduction part for introducing liquid into the container body;
A gas introduction part for introducing gas into the container body;
A swirl part in the container body for swirling the liquid and the gas to generate the gas-liquid;
A gas-liquid mixing device comprising: a gas-liquid discharge unit that discharges the gas-liquid.
(Item 2)
The air according to item 1, wherein the swivel portion is a substantially cylindrical body, and at least a part of the surface of the swivel portion has at least one concave portion along a circumferential direction of the swivel portion along a substantially axial direction. Liquid mixing device.
(Item 3)
The gas-liquid mixing device according to item 2, wherein the at least one recess has at least one protrusion protruding toward an inner wall around an axis of the swivel part.
(Item 4)
The gas-liquid mixing device according to item 3, wherein the at least one projecting portion is inclined with respect to a radial direction of the swivel portion.
(Item 5)
Item 5. The gas-liquid mixing device according to any one of Items 1 to 4, wherein the inner wall has a shape that is at least partially reduced in diameter toward the gas-liquid discharge unit.
(Item 6)
Item 6. The gas-liquid mixing device according to any one of Items 1 to 5, wherein the liquid introduction part is connected in a tangential direction to the inner wall.
(Item 7)
A pump device for generating gas-liquid containing fine bubbles,
A pump body having an outer wall and an inner wall;
A pump suction part for sucking the gas-liquid;
A rotating part that rotates so that the inhaled gas-liquid swirls;
A driving unit for rotating the rotating unit;
A pump device comprising: a gas-liquid discharge unit that discharges the swirled gas-liquid.
(Item 8)
Item 8. The pump device according to Item 7, wherein the rotating unit has at least one centrifugal fin.
(Item 9)
Item 9. The pump device according to Item 7 or 8, wherein the inner wall has at least one protrusion disposed in a circumferential direction of the inner wall.
(Item 10)
Item 10. The pump device according to Item 9, which is subordinate to Item 8, wherein the orientation of the centrifugal fins is different from the orientation of the protrusions.
(Item 11)
A bubble refining device for generating gas-liquid containing fine bubbles,
A bubble refiner main body having an outer wall and an inner wall;
A gas-liquid introduction part for introducing the gas-liquid;
A swivel unit that swirls the introduced gas and liquid;
A bubble miniaturization apparatus comprising: a gas-liquid discharge unit that discharges the gas-liquid.
(Item 12)
Item 12. The bubble miniaturizing apparatus according to Item 11, wherein the swivel portion is a substantially cylindrical body and has irregularities arranged along at least a part of a surface along a substantially axial direction.
(Item 13)
Item 13. The bubble miniaturization apparatus according to Item 11 or 12, wherein the inner wall has irregularities arranged at least partially along the substantially axial direction of the inner wall.
(Item 14)
Item 14. The bubble miniaturization device according to Item 13, which is subordinate to Item 12, wherein the unevenness of the swivel part and the unevenness of the inner wall are nested.
(Item 15)
Item 15. The bubble refining device according to Item 14, wherein the unevenness of the swivel portion and the unevenness of the inner wall are provided in a spiral shape.
(Item 16)
The gas-liquid mixing device according to any one of items 1 to 6,
The pump device according to any one of items 7 to 10,
A system for generating a gas-liquid containing fine bubbles, comprising the bubble refining device according to any one of items 11 to 15.
(Item 17)
A gas-liquid mixing method for generating a gas-liquid containing fine bubbles using the fine mixing apparatus according to item 1,
A liquid introduction step for introducing liquid into the container body from the liquid introduction section;
A gas introduction step of introducing gas into the container body from a gas introduction portion;
Producing a gas-liquid by turning the liquid and the gas introduced into the container body by a turning unit in the container body;
A gas-liquid mixing method including a step of discharging the gas-liquid by a gas-liquid discharge unit.
(Item 18)
A method for producing a gas-liquid containing fine bubbles using the pump device according to item 7,
Inhaling gas and liquid into the pump suction part;
Rotating the gas and liquid sucked into the pump suction part by a rotating part so as to rotate;
And a step of discharging the gas-liquid rotated so as to swivel by a gas-liquid discharge unit.
(Item 19)
A bubble refining method for generating a gas-liquid containing fine bubbles by having the bubble refining apparatus according to item 11,
Introducing the gas-liquid into the gas-liquid introduction part;
A step of swirling the introduced gas-liquid by a swivel unit;
And a step of discharging the swirled gas-liquid by a gas-liquid discharge unit.
(Item 20)
Each step in the gas-liquid mixing method according to Item 17,
Each step in the method of item 18,
Item 20. A method for generating a gas-liquid containing fine bubbles, comprising the steps of the method for reducing bubbles according to Item 19.

According to the present invention, a gas-liquid mixing device configured to efficiently generate a gas-liquid containing fine bubbles, a pump device capable of pumping gas-liquid while miniaturizing bubbles contained in the gas-liquid, Provided is a bubble refining device or a combination thereof, which can refine bubbles contained in a gas / liquid simply by passing the gas / liquid contained therein. Furthermore, by using these apparatuses, a compact system for efficiently generating gas-liquid containing fine bubbles can be realized.

FIG. 1 is a view for explaining a cyclone type gas-liquid mixing apparatus according to Embodiment 1 of the present invention. FIG. 1 (a) shows an appearance of the gas-liquid mixing apparatus 100, and FIG. FIG. 1 (a) shows a cross-sectional structure taken along the line Ib-Ib, and FIG. 1 (c) shows a cross-sectional structure taken along the line Ic-Ic in FIG. 1 (b). FIG. 2 is a diagram for explaining a pump device according to Embodiment 2 of the present invention. FIG. 2 (a) shows an appearance of the pump device 200, and FIG. 2 (b) shows a diagram of FIG. 2 (a). FIG. 2C shows a structure taken along the line IIb-IIb, and FIG. 2C shows a structure taken along the line IIc-IIc in FIG. FIG. 3 is a view for explaining a bubble miniaturization apparatus 300 according to Embodiment 3 of the present invention. FIG. 3 (a) shows an appearance of the bubble miniaturization apparatus 300, and FIG. 3 (a) shows the structure of the cross section taken along line IIIb-IIIb, and FIG. 3 (c) shows an enlarged view of the IIIc portion of FIG. 3 (b). 4 is a diagram for explaining components of the bubble miniaturization apparatus 300 shown in FIG. 3B, and FIG. 4A shows the outer cylindrical body 310 of the bubble miniaturization apparatus 300, and FIG. (B) shows the inner side columnar body 320 which comprises the bubble miniaturization apparatus 300. FIG. FIG. 5 is a diagram for explaining a fine bubble generation system 1000 according to Embodiment 4 of the present invention, and schematically shows a configuration of the fine bubble generation system 1000. FIG. 6 is a perspective view for explaining an example of use of the fine bubble generating system 1000 shown in FIG.

In the present specification, “fine bubbles” is a general term for generally called microbubbles and nanobubbles, and generally means bubbles having a diameter of 50 μm or less.

In the present invention, “about” refers to a range of plus or minus 10% of the following number.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Embodiment 1 Gas-Liquid Mixing Device
FIG. 1 is a view for explaining a swirl type gas-liquid mixing apparatus according to Embodiment 1 of the present invention. FIG. 1 (a) shows an appearance of the gas-liquid mixing apparatus 100, and FIG. FIG. 1 (a) shows a cross-sectional structure taken along the line Ib-Ib, and FIG. 1 (c) shows a cross-sectional structure taken along the line Ic-Ic in FIG. 1 (b).

The gas-liquid mixing apparatus 100 includes a mixing container (container body) 101 for mixing liquid and gas having an inner wall and an outer wall, and a swivel portion (substantially cylindrical body for swirling the liquid and gas). (Flow path forming body) 110, a gas introduction part 102 for introducing gas into the mixing container, a liquid introduction part 103 for introducing liquid into the mixing container, and for discharging gas / liquid from the inside of the mixing container 101 Gas-liquid discharge unit 104.

The means for introducing the gas into the gas introduction unit 102 may be self-contained or forced. In a preferred embodiment, the gas is introduced into the mixing container 101 from the gas introduction unit 102 in a self-contained manner. In the case of the self-contained type, it is not necessary to provide a separate drive source for the gas supply operation, and the apparatus can be miniaturized. Furthermore, in the case of the self-contained type, the amount of gas corresponding to the amount of supply liquid introduced into the liquid introduction unit 103 can be varied following the fluctuation of the supply liquid amount, and can always be adjusted to an appropriate amount and stably supplied. . Further, a control valve for adjusting the gas introduction amount may be provided.

When the gas introduction means is forced, the gas introduction section may be introduced from the gas introduction section 102 shown in FIG. 1 or a pipe between the pump 200 and the bubble miniaturization apparatus 300 described later. It may be introduced from the road or from both. When a large amount of gas is forcedly introduced, it is preferably introduced from a pipe line between the pump 200 and the bubble refining device 300.

In a typical embodiment, the liquid introduced into the liquid introduction unit 103 may be tap water or pressurized water, but is not limited thereto. The gas-liquid mixing apparatus 100 of the present invention may further include a pressure reducing valve for coping with fluctuations in the liquid supply pressure.

A plurality of different liquids may be introduced into the liquid introduction part 103 of the gas-liquid mixing apparatus 100 of the present invention. Here, “different liquids” mean not only different types of liquids but also different supply pressures and supply sources. In the embodiment in which the first liquid and the second liquid are introduced into the liquid introduction unit 103, the gas-liquid mixing apparatus 100 of the present invention includes a first conduit for introducing the first liquid, And a second pipe for introducing two liquids. Thus, by providing separate pipe lines and further adjusting individual pressures with the pressure reducing valves, fine bubbles can be generated efficiently. For example, the first liquid is tap water and the second liquid is pressurized water, but is not limited thereto.

The shape of the mixing container 101 can take any shape as long as the liquid introduced by the liquid introduction unit 103 does not prevent the swirling unit from turning into a swirling flow. For example, it may be a substantially cylindrical body, a substantially elliptical body, or a substantially spherical body. That is, the shape of the mixing vessel may be any shape as long as the inner wall thereof has a substantially circular cross section (Ic-Ic cross section in FIG. 1B) perpendicular to the swirling central axis of the swirling flow. Further, the mixing container 101 may or may not have a reduced diameter portion 101 b whose inner wall is reduced in diameter toward the gas-liquid discharge portion 104. In a preferred embodiment, as shown in FIG. 1A, the mixing container 101 includes a cylindrical portion 101a and a reduced diameter portion 101b. By doing so, the angular velocity of turning is increased in the reduced diameter portion 101b, thereby increasing the shearing force of the gas-liquid discharged from the discharge portion, thereby achieving bubble division. In one embodiment, the shape of the reduced diameter portion 101b may be conical or hemispherical. In a preferred embodiment, as shown in FIG. 1A, the reduced diameter portion 101b is conical, but the present invention is not limited to this.

A swirl unit 110 is accommodated in the cylindrical portion 101a, and a swirl flow path Rp for flowing liquid and gas while swirling is formed between the inner wall surface of the mixing container 101 and the outer peripheral surface of the swirl unit 110. ing. A gas introduction unit 102 is formed on the upper surface of the swirl unit 110, and a gas passage 111 for guiding the liquid from the gas introduction unit 102 to the swirl passage Rp is formed on the upper part of the swirl unit 110. A liquid introduction part 103 for introducing liquid into the swirl passage Rp is formed on the upper part of the cylindrical part 101a. The shape of the swivel unit 110 is not limited to the substantially cylindrical body in the present embodiment. For example, if the liquid introduced by the liquid introduction unit 103 is swirled by the swirl unit, for example, a substantially elliptic cylinder It may be a substantially spherical body. That is, the shape of the swirling unit 110 may be a shape in which a cross section (Ic-Ic cross section in FIG. 1B) perpendicular to the swirling central axis of the swirling flow is formed in a substantially circular shape.

The surface of the swivel unit 110 is provided with at least one groove 121 that is a recess along the circumferential direction in the axial direction. The space | interval of the groove | channel 121 at the time of providing the groove | channel 121 with two or more, and the number of the groove | channels 121 may be arbitrary. In the exemplary embodiment, as shown in FIG. 1B, three grooves 121 are formed at regular intervals in the axial direction, but the present invention is not limited to this. The groove 121 may be formed in a spiral shape along the outer peripheral surface of the swivel unit 110. In one embodiment, the shape of the groove 121 can take any shape. For example, in the cross section including the turning center axis, for example, a square shape, a triangular shape, or a semicircular shape may be used. In the preferred embodiment, as shown in FIG. 1B, the groove 121 has a triangular shape in the cross section including the pivot center axis, but the present invention is not limited to this.

In the groove 121, a turning part 110, that is, a baffle 110b which is at least one protrusion around the axis of the turning part main body 110a is provided. The interval between the baffles 110b and the baffles 110b and the number of the baffles 110b when the plurality of baffles 110b are provided around the axis of the swivel unit main body 110a may be arbitrary. In the embodiment in which a plurality of baffles 110b are provided, the interval between the baffles and the number of baffles can be appropriately determined by those skilled in the art based on the diameter of the swivel unit. When the water pressure of the liquid to be supplied is constant, if the diameter of the swirling portion is too small, the peripheral speed becomes too fast, and the flow of the liquid that collides with the baffle is increased due to the centrifugal force, and the swirling flow hardly occurs. Moreover, since the gas is light, it is easy to collect at the center part of the swivel part, and the stirring ability to make the bubbles into fine bubbles is reduced. On the other hand, if the diameter of the swirling part becomes too large, the peripheral speed becomes slow and swirl flow tends to occur, but the flow that collides with the baffle becomes weak and the pressure difference with the swirl flow is small. Mixing capacity tends to decrease. A person skilled in the art can appropriately select the size of the diameter of the swivel unit based on the required water pressure and gas-liquid flow rate. In the preferred embodiment, the distance between the baffle 110b and the baffle 110b is approximately equal to the distance between the tip of the baffle 110b and the inner wall of the swivel body 110a (plus or minus 10%).

In one embodiment, the spacing between the baffle 110b and the baffle 110b can be about 10 mm to about 50 mm, about 15 mm to about 40 mm, or about 20 mm to about 30 mm.

In one embodiment, the number of baffles 110b may be 1 to 20, 4 to 16, 6 to 14, or 10 to 12.

In a preferred embodiment, as shown in FIG. 1 (c), twelve baffles 110b are arranged at regular intervals around the axis of the swivel unit main body 110a, but the present invention is not limited to this.

In one embodiment, the shape of the baffle 110b can take any shape as long as it collides with the swirling flow swirled by the swirling unit and the bubbles are decomposed. For example, the cross-sectional shape perpendicular to the axis of the swivel unit main body 110a may be flat or curved. In a preferred embodiment, as shown in FIG. 1C, a flat plate is used as the cross-sectional shape perpendicular to the axis of the swivel unit main body 110a. The baffle 110b can be formed by various methods. For example, the baffle 110b may be formed by pouring a material into a mold, or may be formed by machining the material.

Also, the orientation of the baffle 110b (inclination angle A shown in FIG. 1C) can take any orientation as long as the liquid introduced by the liquid introduction unit 103 is swirled by the swirl unit. For example, the inclination angle A may be about 90 °, 0 ° to less than 90 ° (inclination in a direction along the turning direction S), or more than 90 ° to less than 180 ° (the turning direction S). It may be inclined in the opposite direction). In one embodiment, the tilt angle A is about 30 ° to about 80 °, about 40 ° to about 80 °, about 50 ° to about 80 °, about 30 ° to about 70 °, about 40 ° to about 70 °, Or about 45 ° to about 65 °, with about 45 ° to about 65 ° being preferred for bubble generation and refinement. The inclination angle A may be the same for each baffle or may be different. In the preferred embodiment, as shown in FIG. 1C, the inclination angle A is set to about 60 ° in the direction along the turning direction S, but the present invention is not limited to this.

The inside of the reduced diameter portion 101b is a hollow region, the reduced diameter portion 101b is a truncated cone-shaped cylindrical body whose diameter decreases toward the gas-liquid discharge portion 104, and the gas-liquid flowing into the reduced diameter portion 101b is The angular velocity of the turning is increased in the reduced diameter portion 101b. A gas-liquid discharge portion 104 for discharging gas-liquid from the inside of the mixing container 101 is formed at the lower end portion of the reduced diameter portion 101b.

Next, the operation will be described.

The gas Ar supplied to the gas-liquid mixing apparatus 100 is introduced from the gas introduction unit 102 into the swirl passage Rp through the liquid passage 111. Further, the liquid Wa supplied to the gas-liquid mixing apparatus 100 is supplied to the turning passage Rp from the tangential direction of the outer peripheral surface of the turning portion main body 110a via the liquid introduction portion 103. The liquid Wa supplied to the swirl passage Rp is mixed with the gas Ar blown out from the liquid passage 111 at the upper part of the casing cylindrical portion 101a, and the outer periphery of the swivel body 110a as the liquid Wa (gas liquid M1) containing the gas Ar. It flows toward the gas-liquid discharge unit 104 while turning along the surface.

In this way, the gas-liquid M1 collides with the baffle 110b provided in the groove 121 of the swivel unit main body 110a while flowing along the outer peripheral surface of the swivel unit main body 110a while flowing toward the gas-liquid discharge unit 104. As a result, the bubbles contained in the gas-liquid M1 are more finely decomposed.

When the gas-liquid M1 that has passed through the turning passage Rp of the casing cylindrical portion 101a reaches the casing truncated cone portion (reduced diameter portion) 101b, the inner diameter of the casing truncated cone portion 101b decreases toward the gas-liquid discharge portion 104. Therefore, the turning angular velocity is increased, the gas-liquid M1 is attracted to the inner peripheral surface of the reduced diameter portion 101b, and a negative pressure is generated at the central portion of the reduced diameter 101b. When the gas-liquid M1 is discharged from the gas-liquid discharge unit 104, a large shearing force is generated by the flow of the gas-liquid M1 whose swirling angular velocity is increased by the reduced diameter portion 101b, and therefore included in the gas-liquid M1 by the shearing force. Bubbles broken down are broken down more finely.

According to the first embodiment, the gas-liquid mixing apparatus 100 swirls the mixing container (container body) 101 for mixing the gas Ar and the liquid Wa and the gas-liquid M1 including the gas Ar and the liquid Wa. And a swirl flow path Rp for flowing liquid and gas while swirling is formed between the inner wall surface of the mixing container 101 and the outer peripheral surface of the swirl section 110. In addition, grooves 121 along the circumferential direction are formed in the axial direction at regular intervals on the surface of the swivel unit 110, and the baffles 110b are arranged in the grooves 121 around the axis of the swivel unit main body 110a at regular intervals. The gas liquid M1 collides with the baffle 110b provided in the groove 121 of the swivel unit main body 110a while flowing along the outer peripheral surface of the swivel unit main body 110a while flowing toward the gas-liquid discharge unit 104. Gas liquid Bubbles contained in 1 becomes to be more finely divided. Thus, the gas-liquid mixing apparatus 100 of the present invention efficiently generates fine bubbles by providing the protruding portion (baffle 110b) in the swivel unit 110, compared to the case where the protruding portion (baffle 110b) is not provided. Therefore, the gas-liquid mixing device and the fine bubble generating system can be downsized. Further, the gas-liquid mixing apparatus of the present invention has a new function of refining bubbles contained in the mixed gas-liquid in addition to the original function of the gas-liquid mixing apparatus that mixes gas and liquid to generate gas-liquid. Can have functions.

(Embodiment 2-Pump device)
FIG. 2 is a diagram for explaining a pump device according to Embodiment 2 of the present invention. FIG. 2 (a) shows an appearance of the pump device 200, and FIG. 2 (b) shows a diagram of FIG. 2 (a). FIG. 2C shows a structure taken along the line IIb-IIb, and FIG. 2C shows a structure taken along the line IIc-IIc in FIG.

As shown in FIG. 2A, the pump device 200 according to the second embodiment includes a pump body 200a and a pump drive unit 201a that drives the pump body 200a. The pump main body 200a has a cylindrical casing (pump casing) 201. The pump casing 201 has a pump suction portion 202 for sucking gas and liquid into the pump casing 201, and an outside from the pump casing 201. A pump discharge unit 203 for discharging gas and liquid is provided.

2 (b) and 2 (c), a fin rotating body (impeller) 211 is provided in the pump housing 201, which is a rotating part that rotates so that the sucked gas-liquid turns. The fin rotating body 211 is attached to a pump driving unit 201a that is a driving unit that rotates the fin rotating unit 211 via a rotating body driving shaft 201b.

The fin rotator 211 includes a shaft-side rotating plate 211a fixed to the rotating member drive shaft 201b, an opposing rotating plate 211b disposed so as to face the shaft-side rotating plate 211a, and the shaft-side rotating plate 211a and the counter-rotating plate. 211b and at least one centrifugal fin 211c attached between them.

In one embodiment, the shape of the centrifugal fins 211c can take any shape as long as it can generate a swirling flow by applying a centrifugal force to the gas-liquid sucked from the pump suction unit 202. For example, the cross-sectional shape perpendicular to the rotating body drive shaft 201b may be a flat plate shape or a curved plate shape having a predetermined radius of curvature. In the preferred embodiment, the centrifugal fin 211c is a curved plate having an arc shape as a cross-sectional shape perpendicular to the rotating body drive shaft 201b as shown in FIG. 2C, but the present invention is not limited to this. In one embodiment, the shape of the centrifugal fin 211c may be flat along the axial direction of the rotating body drive shaft 201b, or may be a twisted spiral. In a preferred embodiment, the shape of the centrifugal fins 211c is a spiral shape along the axial direction of the rotating body drive shaft 201b. By doing in this way, the attraction | suction power of the gas-liquid by the pump apparatus 100 can further be improved.

In the embodiment in which the plurality of centrifugal fins 211c are provided, the distance between the centrifugal fins 211c and the centrifugal fins 211c is about 10 mm to about 50 mm, about 15 mm to about 40 mm, or about 20 mm to about 30 mm. It is not limited to. A person skilled in the art can select an appropriate interval according to the size of the pump device 100, the output of the pump device 100, and the like.

In one embodiment, the number of the centrifugal fins 211c may be 1 to 20, 4 to 16, 6 to 14, or 10 to 12. When 10 to 12 centrifugal fins 211c are arranged at regular intervals around the axis of the rotating body drive shaft 201b (12 in the example of FIG. 2 (c)), miniaturization of the bubbles can be achieved effectively.

Further, the orientation of the centrifugal fins 211c (inclination angle B shown in FIG. 2C) can take any orientation as long as centrifugal force can be applied to the gas-liquid sucked from the pump suction portion 202. For example, the direction may be perpendicular to the rotation direction of the rotating body drive shaft 201b (inclination angle B is about 90 °), or it may be inclined in the direction along the rotation direction (inclination angle B is more than 0 ° to less than 90 °). Or may be inclined in a direction opposite to the rotation direction (inclination angle B greater than 90 ° to less than 180 °). In one embodiment, the tilt angle B is about 120 ° to about 170 °, about 130 ° to about 170 °, about 130 ° to about 160 °, about 120 ° to about 150 °, about 120 ° to about 140, or It can be about 130 ° to about 140 °. The inclination angle B may be the same for each centrifugal fin, or may be different. In the preferred embodiment, as shown in FIG. 2 (c), the inclination angle B is set to about 135 ° in the direction along the direction opposite to the rotation direction X of the rotating body drive shaft 201b, but the present invention is not limited to this. Not.

The orientation (inclination angle B) of the centrifugal fin 211c is determined by the radius of curvature when the centrifugal fin 211c is a curved plate having a predetermined radius of curvature. If the radius of curvature (inclination angle B) is increased too much, the fluid pressure increases and the swirl flow velocity increases, so that bubbles can be made finer efficiently. However, the occurrence of cavitation is induced, and stable gas-liquid supply is hindered. There is also. On the other hand, if the radius of curvature (inclination angle B) is too small, the fluid pressure drops and the swirling flow velocity slows down, which may make the bubble miniaturization inefficient. Liquid supply can be performed. Those skilled in the art can appropriately select the orientation (inclination angle B) of the centrifugal fins 211c based on the required efficiency of fine bubbles and the stability of gas-liquid supply. For example, the radius of curvature of the centrifugal fin 211c is about 1/4 to about 1/1, about 1/3 to about 3/4, or about 1/2 to about 2 / of the outer size of the impeller 212. Can be 3.

As for the arrangement of the centrifugal fins 211c, it is possible to arrange an arbitrary number of the centrifugal fins 211c at arbitrary positions within a range in which a centrifugal force can be applied to the gas-liquid sucked from the pump suction unit 202 to generate a swirling flow. For example, one centrifugal fin 211c may be arranged, a plurality of centrifugal fins 211c may be arranged at regular intervals in the circumferential direction of the rotating body drive shaft 201b, or the plurality of centrifugal fins 211c may be driven by a rotating body. They may be arranged at different intervals in the circumferential direction of the shaft 201b. In the preferred embodiment, as shown in FIG. 2C, four centrifugal fins 211c are arranged at regular intervals along the circumferential direction of the rotating body drive shaft 201b, but the present invention is not limited to this. Centrifugal fins 211c are arranged such that when the rotating body drive shaft 201b rotates in the direction of arrow X, the gas-liquid flowing from the pump suction portion 202 into the fin rotating body 211 is converted into arcuate centrifugal fins 211c in the pump housing 201. Along the outer side of the pump housing 201.

Furthermore, an impeller (baffle) 212 that is at least one protrusion is disposed on the inner wall of the pump housing 201 along the inner peripheral surface thereof. The shape of the impeller 212 can take any shape as long as the impeller 212 can collide with the gas-liquid swung toward the outside of the pump housing 201 by the centrifugal force of the centrifugal fins 211c. The shape of the impeller 212 may be, for example, a flat plate shape as a cross-sectional shape perpendicular to the axis of the pump housing 201, or may be a curved plate shape having a predetermined radius of curvature. In a preferred embodiment, as shown in FIG. 2C, the cross-sectional shape perpendicular to the axis of the pump housing 201 is a flat plate shape, but the present invention is not limited to this. In one embodiment, the shape of the centrifugal fin 211c may be flat along the axial direction of the rotating body drive shaft 201b, or may be a twisted spiral. In a preferred embodiment, the shape of the centrifugal fins 211c is a spiral shape along the axial direction of the rotating body drive shaft 201b. By doing in this way, the attraction | suction power of the gas-liquid by the pump apparatus 100 can further be improved.

Further, the orientation of the impeller 212 (inclination angle C shown in FIG. 2C) is arbitrary as long as the impeller 212 can collide with the gas-liquid swung toward the outside of the pump housing 201 by the centrifugal force by the centrifugal fins 211c. The orientation can be taken. For example, the direction may be perpendicular to the rotation direction X (inclination angle C is about 90 °), or may be inclined in the direction along the rotation direction X (inclination angle C is more than 0 ° to less than 90 °). Alternatively, it may be inclined in the direction opposite to the rotation direction X (the inclination angle C is more than 90 ° to less than 180 °). In one embodiment, the tilt angle C is about 30 ° to about 80 °, about 40 ° to about 80 °, about 50 ° to about 80 °, about 30 ° to about 70 °, about 40 ° to about 70 °, Or from about 45 ° to about 60 °. The inclination angle C may be the same for each impeller 212 or may be different. In the preferred embodiment, as shown in FIG. 2C, the impeller 212 is oriented along the rotational direction X and has an inclination angle C of about 60 °, but the present invention is not limited to this. If the inclination angle C is about 30 ° or less, the space formed by the pump housing 201 and the impeller 212 becomes too small, and it becomes difficult for the swirling flow swirled by the centrifugal fins 211c to enter the space well. Turbulence cannot be generated.

The orientation (inclination angle C) of the impeller 212 is determined by the curvature radius when the impeller 212 has a curved plate shape having a predetermined curvature radius. If the radius of curvature (inclination angle C) is increased too much, the fluid pressure increases and the swirling flow velocity increases, so that bubbles can be made finer efficiently. However, this causes cavitation and hinders stable gas-liquid supply. There is. On the other hand, if the radius of curvature (inclination angle C) is too small, the fluid pressure drops and the swirl flow velocity slows down, which may make the bubble miniaturization inefficient. However, the occurrence of cavitation is suppressed and stable gas-liquid Supply can be made. A person skilled in the art can appropriately select the orientation (inclination angle C) of the impeller 212 based on the required efficiency of the fine bubbles and the stability of the gas-liquid supply. For example, the size of the radius of curvature of the impeller 212 is approximately 1 / of the size of the outer shape of the impeller 212.
It can be from 4 to about 1/1, from about 1/3 to about 3/4, or from about 1/2 to about 2/3.

In one embodiment, the relationship between the orientation of the centrifugal fins 211c and the orientation of the impeller 212 can be any relationship. For example, the orientations of the centrifugal fins 211c and the impeller 212 may be the same, or the orientations of the centrifugal fins 211c and the impeller 212 may be different. In a preferred embodiment, when the centrifugal fin 211c rotates and the tip of the centrifugal fin 211c and the tip of the impeller 212 face each other, the centrifugal fin 211c and the impeller 212 become substantially straight. In this way, the swirl flow can smoothly flow into the space between the inner wall of the pump casing 201 and the impeller 212.

Arrangement | positioning of the impeller 212 can arrange | position arbitrary numbers in arbitrary positions in the range which can collide with the gas-liquid swirled toward the outer side of the pump housing | casing 201 with the centrifugal force by the centrifugal fin 211c. . For example, one impeller 212 may be disposed, a plurality of impellers 212 may be disposed at regular intervals along the circumferential direction of the pump housing 201, or a plurality of impellers 212 may be disposed on the pump housing 201. They may be arranged at different intervals along the circumferential direction. In the preferred embodiment, as shown in FIG. 2 (c), ten impellers 212 are arranged at regular intervals along the circumferential direction of the pump housing 201, but the present invention is not limited to this.

In one embodiment, the small gap (clearance) between the centrifugal fins 211c and the impeller 212 can take any value. If the gap is made too small, the swirling flow rate increases, but the amount of discharged water decreases, and a desired gas-liquid discharge amount cannot be secured. On the other hand, if the gap is too large, a desired gas-liquid discharge amount can be secured, but the swirling flow rate decreases and a desired turbulent flow cannot be obtained between the centrifugal fins 211c and the impeller 212, making it difficult to refine the bubbles. It becomes. A gap between the centrifugal fin 211c and the impeller 212 is selected based on conditions such as the required gas-liquid discharge amount and fine bubble diameter. For example, the gap distance is about 0.5 mm to about 5 mm, about 0.7 mm to about 3 mm, or about 1 mm to about 2 mm.

In the pump device 200 having such a structure, the fin rotating body 211 that is the rotating portion of the pump main body 200a is driven by the pump driving portion 201a, and the gas-liquid M1 containing bubbles is supplied from the pump suction portion 202 into the pump housing 201. In this state, the gas / liquid M <b> 1 in the pump housing 201 is rotated in the pump housing 201 by the rotation of the fin rotator 211. When the gas-liquid M1 swirls in the pump casing 201 in this way, the gas-liquid M1 in the pump casing 201 is swung in the pump casing 201 by centrifugal force, and the pump casing 201 starts from the center of the pump casing 201. It is attracted to the inner wall surface side of 201 and collides with the impeller 212 provided on the inner wall of the pump housing 201. Thus, when the gas-liquid M1 collides with the impeller 212, the bubbles contained in the gas-liquid M1 are more finely divided. Further, the gas-liquid present in the small gap between the centrifugal fins 211c and the impeller 212 receives the centrifugal force by the centrifugal fins 211c as a shearing force, so that the bubbles are more finely decomposed. Thus, the pump device 200 of the present invention efficiently generates fine bubbles by providing the protrusion (impeller 212) on the inner wall of the pump body 200a, compared to the case where the protrusion (impeller 212) is not provided. Therefore, the pump device and the fine bubble generating system can be downsized. Further, the pump device 200 of the present invention has a new function of refining bubbles contained in the gas and liquid in addition to the original function of the pump for sucking gas and liquid and discharging the gas and liquid to the outside.

(Embodiment 3-Bubble micronizer)
FIG. 3 is a view for explaining a bubble miniaturization apparatus 300 according to Embodiment 3 of the present invention. FIG. 3 (a) shows an appearance of the bubble miniaturization apparatus 300, and FIG. 3 (a) shows the structure of the cross section taken along line IIIb-IIIb, and FIG. 3 (c) shows an enlarged view of the IIIc portion of FIG. 3 (b).

As shown in FIGS. 3 (a) and 3 (b), the bubble miniaturization apparatus 300 according to Embodiment 3 swirls gas and liquid with the outer cylindrical body 310 that is the main body of the bubble miniaturization apparatus and has an inner wall and an outer wall. An inner columnar body 320 that is a revolving part, a gas-liquid introducing part 301 for introducing gas-liquid into the outer cylindrical body 310, and a gas-liquid discharging part for discharging gas-liquid from the outer cylindrical body 310 to the outside 302. Here, the gas-liquid introduction part 301 is provided at one end of the outer cylindrical body 310, and the gas-liquid discharge part 302 is provided at the other end of the outer cylindrical body 310.

As shown in FIG. 3B, the outer cylindrical body 310 and the inner columnar body 320 are formed by fitting the inner columnar body 320 into the outer cylindrical body 310, thereby rotating the gas-liquid M <b> 2 and turning the outer cylinder. A swirl passage Rp2 for flowing from one end side to the other end side of the shaped body 310 is formed.

4 is a diagram for explaining components of the bubble miniaturization apparatus 300 shown in FIG. 3B, and FIG. 4A shows the outer cylindrical body 310 of the bubble miniaturization apparatus 300, and FIG. (B) shows the inner side columnar body 320 which comprises the bubble miniaturization apparatus 300. FIG.

The outer cylindrical body 310 includes an introduction-side peripheral wall portion 311 having a gas-liquid introduction portion 301, a discharge-side peripheral wall portion 313 having a gas-liquid discharge portion 302, and an introduction-side peripheral wall portion 311 and a discharge-side peripheral wall portion 313. It has the cylindrical uneven | corrugated | grooved part 312 arranged along the substantially axial direction of the outer cylindrical body 310 located. In one embodiment, the uneven | corrugated shape provided in the cylindrical body uneven | corrugated | grooved part 312 can take arbitrary shapes. For example, in the axial cross section of the outer cylindrical body 310 (the cross section shown in FIG. 4A), for example, it may be a square shape, a triangular shape, or a semicircular shape. Also good. In one embodiment, the arrangement | positioning space | interval of the axial direction of the uneven | corrugated outer cylindrical body 310 provided in the cylindrical body uneven | corrugated | grooved part 312 can be arbitrary. For example, the interval may be constant, or the interval of the unevenness may be varied depending on the place to be arranged, or may be spiral. For example, the axial arrangement interval of the concave and convex outer cylindrical body 310 provided in the cylindrical concave-convex portion 312 is a constant interval of about 0.5 to about 7 mm, about 1 to about 5 mm, about 2 to about 3 mm. In a preferred embodiment, as shown in FIG. 3C, the unevenness provided on the cylindrical body uneven portion 312 is a spiral thread groove 312a, and the unevenness provided on the columnar uneven portion described later. Although it arrange | positions so that it may become a nested state, this invention is not limited to this.

The inner columnar body 320 includes an introduction side end 321 fitted to the introduction side peripheral wall 311 of the outer cylindrical body 310, a discharge side end 325 fitted to the discharge side peripheral wall 313 of the outer cylindrical body 310, It has a columnar body uneven portion 323 facing the tubular body uneven portion 312 of the outer tubular body 310.

In one embodiment, the shape of the unevenness provided in the columnar uneven portion 323 can take any shape. For example, in the axial cross section of the inner columnar body 320 (the cross section shown in FIG. 4B), for example, it may be a square shape, a triangular shape, or a semicircular shape. Good. In one embodiment, the arrangement | positioning space | interval of the axial direction of the uneven | corrugated inner side columnar body 320 provided in the columnar body uneven | corrugated | grooved part 323 may be arbitrary. For example, the interval may be constant, or the interval of the unevenness may be varied depending on the place to be arranged, or may be spiral.

For example, the axial arrangement interval of the concave and convex outer cylindrical body 310 provided in the cylindrical concave-convex portion 312 is a constant interval of about 0.5 to about 7 mm, about 1 to about 5 mm, about 2 to about 3 mm. In a preferred embodiment, as shown in FIG. 3 (c), the unevenness provided in the columnar uneven portion 323 is a screw thread 323 a having a spiral shape, and a thread groove 312 a provided in the tubular uneven portion 312. Although it arrange | positions so that it may become a nested state, this invention is not limited to this.

In one embodiment, the gap distance between the thread 323a provided in the columnar uneven portion 323 and the screw groove 312a provided in the tubular uneven portion 312 can be arbitrary. For example, the interval may be constant, or the interval between the irregularities may be varied depending on the place of arrangement. For example, the distance between the screw thread 323a provided in the columnar uneven portion 323 and the screw groove 312a provided in the cylindrical uneven portion 312 is about 0.5 to about 7 mm, about 1 to about 5 mm, about 1. 5 to about 3 mm.

A portion between the introduction side end 321 and the columnar uneven portion 323 of the inner columnar body 320 serves as an introduction side swivel portion 322 that imparts a swirling force to the introduced gas-liquid M2, and the discharge of the inner columnar body 320 is performed. A portion between the side end portion 325 and the columnar uneven portion 323 serves as a discharge side turning portion 324 that applies a turning force to the gas-liquid M3 to be discharged.

Here, as shown in FIGS. 3C, 4 </ b> A, and 4 </ b> B, the outer peripheral surface of the columnar uneven portion 323 is formed on the inner peripheral surface of the cylindrical uneven portion 312. A thread 323a is formed in the thread groove 312a so that the screw advances in the opposite direction so as to be in a nested state. In a portion where the inner peripheral surface of the cylindrical body uneven portion 312 of the outer cylindrical body 310 and the outer peripheral surface of the columnar uneven portion 323 of the inner columnar body 320 face each other, the cylindrical uneven portion 312 of the outer cylindrical body 310 is formed. The gas-liquid M2 flowing from one end side to the other end side of the outer cylindrical body 310 while turning along the thread groove 312a collides with the thread 323a of the columnar uneven portion 323 of the inner columnar body 320. .

In the bubble miniaturization apparatus 300 according to the third embodiment having such a configuration, the gas-liquid M2 supplied to the bubble miniaturization apparatus 300 is introduced from the gas-liquid introduction unit 301 into the turning passage Rp2. The gas-liquid M2 introduced into the turning passage Rp2 is moved between the introduction-side peripheral wall portion 311 of the outer cylindrical body 310 and the introduction-side turning portion 322 of the inner columnar body 320 by the force introduced from the gas-liquid introduction portion 301. A turning force is applied. The gas-liquid M2 to which the turning force is applied passes through a portion where the inner peripheral surface of the cylindrical body uneven portion 312 of the outer cylindrical body 310 and the outer peripheral surface of the columnar uneven portion 323 of the inner columnar body 320 face each other. Then, it flows into a portion between the discharge side peripheral wall portion 313 of the outer cylindrical body 310 and the discharge side turning portion 324 of the inner columnar body 320. When the gas-liquid M2 passes through a portion where the inner peripheral surface of the cylindrical uneven portion 312 of the outer cylindrical body 310 and the outer peripheral surface of the columnar concave and convex portion 323 of the inner column 320 are opposed to each other, the outer cylindrical member 310 is passed. Since the gas flows from the one end side of the outer cylindrical body 310 to the other end side while turning along the screw groove 312a of the cylindrical body uneven portion 312, the gas-liquid M2 is screwed into the columnar body uneven portion 323 of the inner columnar body 320. Collide with mountain 323a. Due to this collision, the bubbles contained in the gas-liquid M2 are more finely divided. Thereafter, the gas-liquid M3 in which the bubbles are refined is given a turning force at a portion between the discharge side peripheral wall portion 313 of the outer cylindrical body 310 and the discharge side turning portion 324 of the inner columnar body 320, and the gas-liquid discharge is performed. It is discharged from the part 302 to the outside of the bubble miniaturization apparatus 300. As described above, the bubble miniaturization apparatus 300 according to the present invention includes the outer cylindrical body 310 by providing the outer cylindrical body 310 with unevenness (screw groove 312a) and / or the inner columnar body 320 with unevenness (thread 323a). In addition, since fine bubbles can be efficiently generated as compared with the case where the inner columnar body 320 is not provided with irregularities, it is possible to reduce the size of the bubble refining device and the fine bubble generating system.

The bubble miniaturization apparatus 300 may be used by connecting a plurality (for example, three or more) in series based on the required size and amount of fine bubbles. In particular, when the introduction of gas is forced and the gas is introduced from the gas introduction unit 102 and / or the pipe between the pump device 200 and the microbubble device 300, it is effective and generates a large amount of microbubbles. It becomes possible.

(Embodiment 4-Microbubble generation system)
The fine bubble generation system 1000 according to the fourth embodiment includes any one or more of the gas-liquid mixing device 100 according to the first embodiment, the pump device 200 according to the second embodiment, and the bubble refinement device 300 according to the third embodiment. . In one embodiment, the fine bubble generating system of the present invention includes the gas-liquid mixing device 100 according to the first embodiment and the pump device 200 according to the second embodiment. In another embodiment, the fine bubble generation system of the present invention includes a pump device 200 according to the second embodiment and a bubble refinement device 300 according to the third embodiment. In another embodiment, the fine bubble generation system of the present invention includes the gas-liquid mixing device 100 according to the first embodiment and the bubble refinement device 300 according to the third embodiment.

FIG. 5 is a diagram for explaining a fine bubble generation system 1000 according to Embodiment 4 of the present invention, and schematically shows a configuration of the fine bubble generation system 1000. The fine bubble generation system 1000 according to the fourth embodiment includes the gas-liquid mixing device 100 according to the first embodiment, the pump device 200 according to the second embodiment, and the bubble refinement device 300 according to the third embodiment. Here, the gas-liquid discharge part 104 of the gas-liquid mixing apparatus 100 is connected to the pump housing 201 of the pump apparatus 200 by a pipe (not shown), and the pump discharge part 203 of the pump apparatus 200 is an air bubble refiner. It is connected to 300 gas-liquid introduction parts 301 by piping (not shown). As a result, in this fine bubble generation system 1000, the supplied gas Ar and liquid Wa are introduced into the gas-liquid mixing device 100 by the pumping force of the pump device 200, and the gas Ar and liquid introduced into the gas-liquid mixing device 100. Wa is mixed in the gas / liquid mixing device 100 by the pumping force of the pump device 200 and supplied to the pump device 200 as gas / liquid M1. Further, in the pump device 200, the bubbles are further refined inside the pump device 200 by the pumping force of the pump device 200, and the gas / liquid M2 including the further refined bubbles is supplied from the pump device 200 to the bubble refinement device 300. Is done. In the bubble miniaturization apparatus 300, the supplied gas-liquid M2 is sent from the gas-liquid introduction part 301 of the bubble miniaturization apparatus 300 to the gas-liquid discharge part 302 while turning by the pumping force of the pump apparatus 200. A gas-liquid M3 in which bubbles contained in the gas-liquid M2 are further miniaturized is generated.

Thus, the fine bubble generating system 1000 of the present invention includes the baffle 110b in the gas-liquid mixing device 100, the impeller 212 in the pump device 200, and the thread groove 312a and the screw thread 323a in the bubble miniaturization device 300. Since finer bubbles can be generated more efficiently than when the mixing device 100, the pump device 200, and the bubble refining device 300 are each used alone, it is possible to reduce the size of the fine bubble generation system. . It should also be noted that the fine bubble generation system 1000 of the present invention can efficiently perform water supply and fine bubble generation simultaneously.

The gas-liquid M3 generated by the microbubble generation system 1000 of the present invention is discharged from the bubble micronizer 300 and used for various purposes, for example, water supply to a bathtub, water supply to a shower head, or water supply to a washing machine. Needless to say, it is useful not only for small-scale water environments but also for large-scale water environments.

FIG. 6 is a perspective view for explaining an example of use of the fine bubble generating system 1000 shown in FIG.

In the usage example of the fine bubble generating system 1000 shown in FIG. 6, the gas-liquid M3 generated in the fine bubble generating system 1000 is supplied to the bathtub 50. Here, the bathtub main body 51 is provided with a bathtub water supply port 52 and a bathtub drainage port 53. The bathtub water supply port 52 is connected to the gas-liquid discharge unit 302 of the fine bubble generating system 1000, and the bathtub drain port 53 is connected to the liquid introducing unit 103 of the fine bubble generating system 1000.

In such a configuration, the gas / liquid M3 is circulated between the fine bubble generating system 1000 and the bathtub 50, and in the bathtub 50, the gas / liquid M3 in which the bubbles are miniaturized is always supplied from the fine bubble generating system 1000. Will be.

As described above, the present invention has been exemplified using the preferred embodiment of the present invention, but the present invention should not be construed as being limited to this embodiment. It is understood that the scope of the present invention should be construed only by the claims. It is understood that those skilled in the art can implement an equivalent range based on the description of the present invention and the common general technical knowledge from the description of specific preferred embodiments of the present invention. It is understood that the documents cited in the present specification should be incorporated by reference into the present specification in the same manner as the content itself is specifically described in the present specification.

The present invention is useful in the field of gas-liquid generation including fine bubbles.

50 Bathtub 51 Bathtub Body 52 Bathtub Inlet 53 Bathtub Outlet 100 Gas-Liquid Mixing Device 101 Mixing Container (Container Body)
101a Cylindrical part 101b Reduced diameter part 102 Gas introduction part 103 Liquid introduction part 104 Gas-liquid discharge part 110 Turning part 110a Turning part body 110b Baffle 111 Gas passage 200 Pump device 200a Pump body 201 Pump housing 201a Pump drive part 201b Rotating body drive Shaft 202 Pump suction part 203 Pump discharge part 211 Fin rotating body 211a Shaft side rotating plate 211b Opposing rotating plate 211c Centrifugal fin 212 Impeller 300 Bubble refining device 301 Gas liquid introducing part 302 Gas liquid discharging part 310 Outer cylindrical body 311 Introducing side Peripheral wall part 312 Cylindrical uneven part 313 Discharge side peripheral wall part 320 Inner columnar body 321 Introduction side end part 322 Introduction side turning part 323 Columnar object uneven part 324 Discharge side turning part 325 Discharge side end part Ba Bubble Wb Liquid

Claims

A gas-liquid mixing device for generating a gas-liquid containing fine bubbles,
A container body having an outer wall and an inner wall;
A liquid introduction part for introducing liquid into the container body;
A gas introduction part for introducing gas into the container body;
A swirl part in the container body for swirling the liquid and the gas to generate the gas-liquid;
A gas-liquid mixing device comprising: a gas-liquid discharge unit that discharges the gas-liquid.
The said turning part is a substantially cylindrical body, At least one part of the surface of the said turning part has at least one recessed part along the circumferential direction of the said turning part along a substantially axial direction. Gas-liquid mixing device.
The gas-liquid mixing device according to claim 2, wherein the at least one recess has at least one protrusion that protrudes toward an inner wall around an axis of the swivel part.
The gas-liquid mixing device according to claim 3, wherein the at least one protrusion is inclined with respect to a radial direction of the swivel unit.
The gas-liquid mixing apparatus according to any one of claims 1 to 4, wherein the inner wall has a shape that is at least partially reduced in diameter toward the gas-liquid discharge part.
The gas-liquid mixing device according to any one of claims 1 to 5, wherein the liquid introduction part is connected in a tangential direction to the inner wall.
A pump device for generating gas-liquid containing fine bubbles,
A pump body having an outer wall and an inner wall;
A pump suction part for sucking the gas-liquid;
A rotating part that rotates so that the inhaled gas-liquid swirls;
A driving unit for rotating the rotating unit;
A pump device comprising: a gas-liquid discharge unit that discharges the swirled gas-liquid.
The pump device according to claim 7, wherein the rotating unit has at least one centrifugal fin.
The pump device according to claim 7 or 8, wherein the inner wall has at least one protrusion disposed in a circumferential direction of the inner wall.
The pump device according to claim 9, which is dependent on claim 8, wherein the orientation of the centrifugal fins is different from the orientation of the protrusions.
A bubble refining device for generating gas-liquid containing fine bubbles,
A bubble refiner main body having an outer wall and an inner wall;
A gas-liquid introduction part for introducing the gas-liquid;
A swivel unit that swirls the introduced gas and liquid;
A bubble miniaturization apparatus comprising: a gas-liquid discharge unit that discharges the gas-liquid.
The bubble refining device according to claim 11, wherein the swivel portion is a substantially cylindrical body, and has irregularities arranged along at least a part of a surface along a substantially axial direction.
The bubble miniaturization device according to claim 11 or 12, wherein the inner wall has irregularities arranged at least partially along a substantially axial direction of the inner wall.
The bubble miniaturization device according to claim 13, which is dependent on claim 12, wherein the unevenness of the swivel portion and the unevenness of the inner wall are nested.
The bubble refinement device according to claim 14, wherein the unevenness of the swivel portion and the unevenness of the inner wall are provided in a spiral shape.
A gas-liquid mixing device according to any one of claims 1 to 6,
The pump device according to any one of claims 7 to 10,
A system for generating a gas-liquid containing fine bubbles, comprising the bubble refining device according to any one of claims 11 to 15.
A gas-liquid mixing method for generating a gas-liquid containing fine bubbles using the gas-liquid mixing apparatus according to claim 1,
A liquid introduction step for introducing liquid into the container body from the liquid introduction section;
A gas introduction step of introducing gas into the container body from a gas introduction portion;
Producing a gas-liquid by turning the liquid and the gas introduced into the container body by a turning unit in the container body;
A gas-liquid mixing method including a step of discharging the gas-liquid by a gas-liquid discharge unit.
A method for producing a gas-liquid containing fine bubbles using the pump device according to claim 7,
Inhaling gas and liquid into the pump suction part;
Rotating the gas and liquid sucked into the pump suction part by a rotating part so as to rotate;
And a step of discharging the gas-liquid rotated so as to swivel by a gas-liquid discharge unit.
A bubble refining method for producing a gas-liquid containing fine bubbles using the bubble refining apparatus according to claim 11,
Introducing the gas-liquid into the gas-liquid introduction part;
A step of swirling the introduced gas-liquid by a swivel unit;
And a step of discharging the swirled gas-liquid by a gas-liquid discharge unit.
Each step in the gas-liquid mixing method according to claim 17,
Each step in the method of claim 18;
A method for generating a gas-liquid containing fine bubbles, comprising each step in the method for refining bubbles according to claim 19.