WO2014077561A1

WO2014077561A1 - Bubble generator

Info

Publication number: WO2014077561A1
Application number: PCT/KR2013/010240
Authority: WO
Inventors: 이춘우
Original assignee: Lee Chun-Woo
Priority date: 2012-11-15
Filing date: 2013-11-12
Publication date: 2014-05-22

Abstract

The present invention relates to: a bubble generator which has a plurality of balls or rollers interposed between an inner pipe having through-holes on the circumferential surface thereof and an outer pipe having or not having through-holes on the circumferential surface thereof such that the inner pipe is rotated in order to enable the plurality of balls or rollers to block the plurality of through-holes; or a bubble generator which rotates an inner pipe from among an inner pipe having through-holes on the circumferential surface thereof and an outer pipe having through-holes on the circumferential surface thereof, and which is circumscribed by slidably coming in contact with the inner pipe, so as to block the plurality of through-holes of the inner pipe by the outer pipe.

Description

Bubble generator

The present invention relates to a bubble generator, and more particularly to a bubble generator for generating a fine bubble.

Bubble refers to a bag of gas, or bubble, present in a liquid.

Small bubbles having a bubble diameter of about 100 μm are called micro bubbles, and have a large volume surface area and a long residence time in a liquid as compared to bubbles having diameters. Various applications are expected.

In general, in a bubble generator that generates micro bubbles, a method of blowing gas into a liquid through a porous body is used.

Such a bubble generator may generate fine bubbles by supplying gas through a porous body to a pipe through which water flows from a gas supply device such as a compressor.

In addition, in the recently developed bubble generator, a method of dividing the bubbles into pieces by applying a shear force to the bubble surface is often used.

Such a bubble generator includes a container body having a conical space, a pressurized liquid inlet opened in a tangential direction to a part of the inner wall circumferential surface of the space, a gas introduction hole opened in a bottom portion of the conical space, and the conical shape. There is a swirling bubble generator composed of a swirling gas-liquid extraction hole opened at the top of the space.

However, in a bubble generator using a porous body, since bubbles are not easily released from the porous body, the generated bubbles are larger than the pore diameter of the porous body, and a small bubble cannot be generated.

Moreover, as a method of rotating a porous body, since big bubble generate | occur | produces from the vicinity of the center of a rotating shaft with a small influence of rotation, the diameter of the bubble which generate | occur | produces even in optimal conditions was a limit about 0.4 mm.

In this regard, in the swinging bubble generator, since a shear force is applied to the bubble surface, small bubbles can be generated. However, since the gas is pressurized and supplied to the conical container body in order to forcibly give the swirl flow to the fluid, the pressure loss is increased, and the ratio of bubbles in the liquid is lower than in the case of using a porous body. Remained a problem.

In order to solve this problem, a water tank which is stagnant by arranging a discharge port of a gas supply pipe that is driven to rotate in a water tank via a pulley on a shaft axis of a motor disposed outside the tank is connected to the discharge port in a flowable manner. Although a method for generating fine bubbles by the shear force generated by the relative motion between the water inside and the rotating bubble has been proposed in Korean Patent Registration No. 10-1157719, in the bubble generator of the above method, bubbles are ejected from the gas inlet. Since only the shear force is cut, the size of the generated bubble is not constant, and the size of the bubble cannot be freely adjusted.

In a first aspect, the present invention is a state in which a plurality of through-holes through which gas flows are formed on the circumferential surface of the inner tube, in which a plurality of through-holes through which gas passes is formed on the outer circumference, and are arranged in water. The problem can be solved by rotating the inner tube or the outer tube to selectively and periodically distribute the through hole of the inner tube and the outer hole to cut off air or gas blown out through the through hole.

According to a second aspect of the present invention, a plurality of balls or rollers are capable of revolving or rotating between an outer tube having a plurality of through holes formed in a circumferential surface of the inner tube having a plurality of through holes formed therein. Interposed so as to be revolutionary and rotating, the ball or roller selectively and periodically distributes the through hole of the inner tube and the through hole when the inner tube or the outer portion rotates, and is ejected through the through hole. The above problem can be solved by cutting off the air or gas to be cut.

According to a second aspect of the present invention, a plurality of balls or rollers are capable of rotating, rotating or rotating and rotating between an inner tube having a plurality of through-holes through which gas passes through a circumferential surface and an outer circumference external to the inner tube. Interposed so that the ball or roller selectively and periodically opens and closes the through hole of the inner tube when the inner tube or the outer tube rotates, thereby cutting off the air or gas blown out through the through hole, The problem can be solved.

According to a third aspect of the present invention, there is provided an inner tube having an outer gear provided on an outer circumferential surface thereof and a through hole through which gas passes through each bone portion of the outer gear, and an outer tube provided with an inner gear on an inner circumferential surface thereof, and a through hole formed in each of the bone portions of the inner gear. A plurality of planetary gears engaged with them are interposed so as to rotate or rotate and rotate so that the planetary gear that is engaged with the interlocking motion selectively and periodically blocks air or gas that is ejected through the through-hole of the inner tube. The above-described problems can be solved by blocking again the air or the gas blown out through the through-holes of the external appearance.

According to a fourth aspect of the present invention, there is provided a plurality of planetary gears that mesh with an external gear provided on an outer circumferential surface of the outer circumferential surface, and between the outer circumference of the inner circumferential surface of the inner tube having a through hole through which gas passes through each of the valleys of the outer gear. The problem can be solved by intermittently rotating or revolving and rotating the planetary gear that is engaged with the engaging motion, by selectively and periodically blocking the air or gas that is ejected through the through-hole of the inner tube.

According to the problem solving means of the first to fourth aspects of the present invention, the through-hole and the through-hole of the inner tube have a simple structure by rotation of the inner tube or the outer tube, or by a plurality of balls, rollers or gears. Or periodically circulate the through hole of the inner tube, or periodically open and close the through hole of the inner tube and the through hole of the inner tube, and exit from the inner tube to the outer tube or from the outer tube to the inner tube. By making it possible to finely cut bubbles of air or gas, while the size of the generated bubbles is constant, it can be freely adjusted to generate a large amount of fine bubbles more stably than before.

1 is a conceptual diagram showing a bubble generator of a first embodiment of the first aspect of the present invention;

2 is a conceptual diagram showing a bubble generator of a second embodiment of the first aspect of the present invention;

3 is a conceptual diagram showing the bubble generator of the first embodiment of the second aspect of the present invention;

4 shows a modified embodiment of the first embodiment of the second aspect;

Fig. 5 is a conceptual diagram showing the bubble generator of the second embodiment of the second aspect of the present invention.

6 shows a modified embodiment of the second embodiment of the second aspect.

7 is a conceptual diagram showing a bubble generator of a third embodiment of the second aspect of the present invention.

8 shows a modified embodiment of the third embodiment of the second aspect.

9 is a conceptual diagram showing the bubble generator of the fourth embodiment of the second aspect of the present invention.

10 shows a modified embodiment of the fourth embodiment of the second aspect.

11 is a conceptual diagram showing the bubble generator of the fifth embodiment of the second aspect of the present invention.

12 shows a modified embodiment of the fifth embodiment of the second aspect.

Fig. 13 is a conceptual diagram showing the bubble generator of the sixth embodiment of the second aspect of the present invention.

14 shows a modified embodiment of the sixth embodiment of the second aspect.

Fig. 15 is a conceptual diagram showing a bubble generator of the seventh embodiment of the second aspect of the present invention.

16 shows a modified embodiment of the seventh embodiment of the second aspect.

Fig. 17 is a conceptual diagram showing the bubble generator of the first embodiment of the third aspect of the present invention.

18 is a conceptual diagram showing a bubble generator of another embodiment of the first embodiment of the third aspect of the present invention.

19 to 24 are conceptual views illustrating embodiments capable of rotating the planetary gear of FIG. 17.

25 and 26 are conceptual views showing a state in which the inner tube of FIG.

27 to 31 is a conceptual diagram showing a state in which the wing is provided in the inner tube of FIG.

The present invention provides a plurality of balls or rollers by rotating the inner tube through a plurality of balls or rollers between an inner tube having a through hole formed in a circumferential surface thereof and an exterior having a through hole formed or not formed in the circumferential surface thereof. A bubble generator for blocking a plurality of through holes, or an inner tube having a through hole formed on the circumferential surface thereof, and a through hole formed on the circumferential surface thereof, thereby sliding the inner tube in a circumferential appearance by sliding the inner tube so as to rotate the inner tube. It may be a bubble generator for blocking the hole by the appearance.

In the following description of the embodiments, the description will be made on the assumption that the pressure for supplying the gas is greater than the pressure for supplying the liquid or the water pressure in the tank.

(First embodiment of the first aspect)

Hereinafter, the bubble generator of the first embodiment of the first aspect according to the present invention will be described in detail with reference to FIG.

1 shows a bubble generator of a first embodiment of the first aspect.

In the water of the water tank 1, the front-end | tip part of the inner tube 2 which is a fixed body fixed to the base is arrange | positioned.

The proximal end of the inner tube 2 is connected to the gas supply pipe 5 disposed outside the water tank 1, and the gas sent from the gas supply pipe 5 is supplied to the inner tube 2. In this case, a plurality of fine holes are drilled in the tip portion of the inner tube 2, and gas is injected into the liquid of the water tank 1 from the fine holes.

In other words, the inner tube 2 is a tubular portion with a closed tip, and a cavity 11 is formed therein. A plurality of through holes 12 are formed in the circumferential direction and in the circumferential direction on the circumferential surface of the distal end of the inner tube 2.

The proximal end of the inner tube (2) is rotatable through the bearing the proximal end of the outer body (3) which is fixedly inscribed in the tubular rotor (83) of the motor 80 fixed to the bracket provided in the base or the water tank Is circumscribed.

The exterior 3 is rotatably mounted in the water tank 1 via a bearing not shown in FIG. 1.

The motor 80 includes a stator 82 inscribed in the case 81 and a tubular rotor 83 inscribed with a predetermined gap radially inward with respect to the stator 82.

The proximal end of the exterior 3 is rotatably circumscribed via a bearing in the inner tube 2 and fixedly circumscribed in the tubular rotor 83 to be rotatably mounted via the bearing in the case 81. have.

The tip portion of the outer casing 3 is circumferentially slidably contacted with the tip portion of the inner tube 2, and the tip portion circumferential surface thereof faces the plurality of through holes 12 of the inner tube 2 in a radial direction. The plurality of through holes 13 are formed to be spaced apart in the axial direction and the circumferential direction.

The bubble generator of the first embodiment of the first aspect configured as above can be operated as follows.

When the motor 80 is operated to rotate the exterior 3 while supplying gas from the gas supply pipe 5 to the inner tube 2, the plurality of through holes arranged in a straight line in the circumferential direction of the inner tube 2. (12) and the plurality of through holes 13 arranged in a straight line in the circumferential direction of the outer surface (3) face each other in a radial direction so as to flow with each other so that the gas from the inner tube is ejected into the water tank (1). When not facing each other in the radial direction, the plurality of through holes 12 of the inner tube 2 are closed, so that gas from the inner tube cannot be ejected into the water tank 1, and eventually, of the inner tube 2 Bubbles, which are gases blown out from the plurality of through holes 12, are forcibly cut by the rotating appearance 3 to have particles of bubbles having a constant small diameter.

(2nd Example of 1st aspect)

Hereinafter, the bubble generator of the second embodiment of the first aspect according to the present invention will be described in detail with reference to FIG.

2 shows a bubble generator of the second embodiment.

In the water of the water tank 1, the front-end | tip part of the inner tube 2 which is a rotating body is arrange | positioned.

The proximal end of the inner tube 2 is connected to the gas supply pipe 5 disposed outside the water tank 1 via the swivel joint 4, and the gas sent from the gas supply pipe 5 is supplied to the inner pipe 2. do. In this case, a plurality of fine holes are drilled in the tip portion of the inner tube 2, and gas is injected into the liquid of the water tank 1 from the fine holes.

The proximal end of the inner tube 2 is fixedly inscribed to the tubular rotor 83 of the motor 80 fixed to the bracket provided in the base or the water tank, and is rotatable through a bearing in the case 81 of the motor 80. Is fitted.

The distal end of the inner tube 2 is circumscribed to the distal end of the inner tube 2 so that the distal end of the inner tube 2 is in sliding contact with the outer tube 3 so as to be rotatable with respect to the outer tube 3. It is fixed to the case 31 of the motor 80.

The plurality of through holes 13 are formed in the axial direction and the circumferential direction so as to face the plurality of through holes 12 of the inner tube 2 in the radial direction on the circumferential surface of the distal end of the outer shell 3.

The bubble generator of the second embodiment of the first aspect configured as described above operates the motor 80 and rotates the inner tube 2 while supplying gas from the gas supply tube 5 to the inner tube 2. Can be operated as in the first embodiment of the.

(First Example of Second Embodiment)

Hereinafter, the bubble generator of the first embodiment of the second aspect according to the present invention will be described in detail with reference to FIGS. 3 and 4.

3 shows a bubble generator of the first embodiment of the second aspect.

The proximal end of the inner tube (2) is rotatable through the bearing the proximal end of the outer body (3) which is fixedly inscribed in the tubular rotor (83) of the motor 80 fixed to the bracket provided in the base or the water tank It is circumscribed and the tip is blocked.

The exterior 3 is rotatably mounted in the water tank 1 via a bearing not shown in FIG. 3.

The distal end of the outer shell 3 is rotatably circumferentially connected to the distal end of the inner tube 2 via a plurality of balls 7a or a plurality of rollers 7b. ) Are spaced apart in the axial direction and in the circumferential direction.

When a plurality of balls 7a are interposed between the distal end of the outer casing 3 and the distal end of the inner tube 2, as shown in FIG. 3, the inner peripheral surface of the distal end of the outer casing 3 and the inner tube 2 are shown. A plurality of ring-shaped recesses 6 spaced apart at regular intervals in the axial direction of the inner tube 2 are formed on at least one of the outer peripheral surfaces of the distal end portion of the inner tube 2, and the inner tube 2 is formed on each of the plurality of recesses 6. The plurality of through holes 12 or the plurality of through holes 13 are formed at regular intervals in the circumferential direction of the plurality of balls, and the plurality of balls 7a are arranged around the plurality of recesses 6 in the circumferential direction. The plurality of through holes 12 and the plurality of through holes 13 are selectively disposed to face each other in a radial direction at the time of rotation of the exterior 3 so as to be seated in contact or spaced at regular intervals. To be opened and closed by the ball 7a. It is. 3 shows that the plurality of recesses 6 are formed only in the inner tube 2.

In addition, when a plurality of rollers 7b are interposed between the front end of the exterior 3 and the front end of the inner tube 2, the inner peripheral surface of the front end of the exterior 3 and the inner tube as shown in FIG. At least one of the outer peripheral surfaces of the tip portion (2) is formed with a ring-shaped recess 6 that is elongated in the axial direction of the inner tube 2, and the recess 6 has an axial line in the circumferential direction of the inner tube 2 and the axis line. The plurality of through holes 12 or the plurality of through holes 13 are formed at regular intervals in the direction, and the plurality of rollers 7b are spaced apart at regular intervals from the recess 6 in the circumferential direction. It is seated, and the plurality of through holes 12 and the plurality of through holes 13 are selectively disposed to face each other in the radial direction at the time of rotation of the external appearance 3, by the plurality of rollers 7b. It can be opened and closed. 4 shows that the recessed part 6 is formed only in the inner tube 2.

The bubble generator of the first embodiment of the second aspect configured as above can be operated as follows.

When gas is supplied from the gas supply pipe 5 to the inner tube 2, the motor 80 is driven to rotate the outer tube 3, and the gas is disposed between the distal end of the outer tube 3 and the distal end of the inner tube 2. A plurality of balls 7a or a plurality of rollers 7b are rotated in the circumferential direction of the inner tube 2, and each of the plurality of rotating balls 7a or the plurality of rollers 7b is the inner tube 2 The through-hole 12 and the plurality of through-holes 12 of any of the plurality of through-holes 12 which are arranged in a straight line in the circumferential direction of the surface, but which face each other in a radial direction selectively during rotation of the exterior. Any one of the through holes 13 is blocked (12 or 13) and the other (13 or 12) is blocked while opening one (12 or 13) of the plurality of inner tube (2) Bubbles, which are gases blown out from the through-holes 12, are formed by the plurality of balls 7a, As the cutting by a plurality of rollers (7b) it is to be cut by the exterior (3) and the rotation is imparted to the particles of bubbles of a certain small diameter.

(2nd Example of 2nd Embodiment)

Hereinafter, the bubble generator of the second embodiment of the second aspect according to the present invention will be described in detail with reference to FIGS. 5 and 6.

5 shows a bubble generator of a second embodiment of the second aspect.

The distal end of the inner tube 2 is circumscribed at the distal end of the inner tube 2 such that the distal end of the inner tube 2 is rotatable with respect to the outer tube 3, and the proximal end of the outer tube 3 is the motor. It is fixed to the case 31 of 80.

The tip of the exterior 3 is closed, and a plurality of through holes 13 are formed in the axial direction and in the circumferential direction on the circumferential surface of the tip.

In the same manner as in the first embodiment of the second aspect, a plurality of balls 7a or a plurality of balls, as shown in FIGS. 5 and 6, between the distal end of the outer tube 3 and the distal end of the inner tube 2. Rollers 7b are interposed.

The bubble generator of the second embodiment of the second aspect configured as above can be operated as follows.

When gas is supplied from the gas supply pipe 5 to the inner tube 2, the motor 80 is driven to rotate the inner tube 2, and the front end of the outer shell 3 and the distal end of the liquid injection unit 2 are rotated. The interposed plural balls 7a or plural rollers 7b are rotated in the circumferential direction of the gas inlet 2, and each of the plural balls 7a or the rollers 7b that rotates is the inner tube. The through hole 12 and the plurality of through holes of any of the plurality of through holes 12, which are arranged in a straight line in the circumferential direction of (2), but which face each other in a radial direction selectively at the time of rotation of the inner tube. Any one of the through holes 13 is blocked (12) or 13 (13), and the other one (13, or 12) is blocked while opening one (12 or 13) of the inner tube (2). Bubble, which is a gas ejected from the plurality of through holes 12, Of the ball 7a or the plurality of rollers 7b, and then a bubble, which is a gas ejected from the plurality of through holes 13, is formed by the plurality of balls 7a or the plurality of rollers 7b. It is cut again to have particles of a certain small diameter bubble.

(Third Embodiment of Second Embodiment)

Hereinafter, the bubble generator of the third embodiment of the second aspect according to the present invention will be described in detail with reference to FIGS. 7 and 8.

7 shows a bubble generator of a third embodiment of the second aspect.

The proximal end of the inner tube 2 is connected to the liquid supply tube 9 disposed outside the water tank 1 via the swivel joint 4, and the liquid sent from the liquid supply tube 9 is supplied to the inner tube 2. do. In this case, a plurality of fine holes are drilled in the tip end portion of the inner tube 2.

The inner tube 2 has a tubular portion with an open end, and a cavity 11 is formed therein. A plurality of through holes 12 are formed in the circumferential direction and in the circumferential direction on the circumferential surface of the distal end of the inner tube 2.

The distal end of the inner tube 2 is circumscribed at the distal end of the inner tube 2 such that the distal end of the inner tube 2 is rotatable with respect to the outer tube 3, and the proximal end of the outer tube 3 is the motor. It is fixed to the case 81 of 80.

The tip of the exterior 3 is blocked. The gas supply pipe 5 is connected to the base end.

Between the distal end of the outer tube 3 and the distal end of the inner tube 2, as shown in FIGS. 7 and 8, a plurality of balls 7a or a plurality of rollers 7b are formed when the inner tube is rotated. It is interposed so that the through hole 12 can be opened and closed.

The bubble generator of the third embodiment of the second aspect configured as above can be operated as follows.

When the liquid is supplied from the liquid supply pipe 9 to the inner tube 2 and the gas is supplied from the gas supply tube 5 to the outer tube 3, the motor 80 is operated to rotate the inner tube 2. The plurality of balls 7a or the plurality of rollers 7b interposed between the distal end of the inner tube and the distal end of the inner tube 2 are rotated in the circumferential direction of the inner tube 2, and the rotating plurality of balls 7a Or each of the plurality of rollers 7b blocks and opens the plurality of through holes 12 of the inner tube 2, and the plurality of through holes of the liquid injection unit 2 via the outer surface 3. Bubbles, which are gases blown into the holes 12, are cut by the plurality of balls 7a or the plurality of rollers 7b and are also cut by the rotating inner tube 2, so that You have a particle.

Further, in the first to third embodiments of the second aspect, the rotating body is described as a motor, but the present invention is not limited thereto, and a prime mover, an engine, and the like are possible.

Further, in the third embodiment, the gas supply pipe is connected to the proximal end of the external appearance, but the present invention is not limited thereto, and the gas supply pipe is connected to the external appearance at any position in the axial direction of the external appearance. Can be.

(Fourth Example of Second Embodiment)

Hereinafter, the bubble generator of the fourth embodiment according to the present invention will be described in detail with reference to FIGS. 9 and 10.

9 shows a bubble generator of the fourth embodiment.

The bubble generator includes an inner tube (2) fixed to the base.

The upstream end of the inner pipe 2 is connected to the gas supply pipe 5.

The inner tube 2 is closed at a downstream end thereof, and a cavity 11 is formed therein. On the circumferential surface of the inner tube 2, a plurality of through holes 12 penetrated in the radial direction are formed spaced apart in the axial direction and the circumferential direction.

The inner tube (2) is rotatable via a plurality of balls (7a) or a plurality of rollers (7b) in the state that the outer body (3), which is a rotating body rotated by a driving source (not shown), is rotatably mounted on the base. It is circumscribed so that the plurality of through holes 12 can be opened and closed at the time of rotation of the external appearance by the plurality of balls 7a or the plurality of rollers 7b, and the downstream end of the external appearance 3 It is reduced in diameter and opened.

The upstream end of the exterior 3 is connected to the liquid supply pipe 9 via the swivel joint 8.

When a plurality of balls 7a are interposed between the exterior 3 and the inner tube 2, as illustrated in FIG. 9, at least one of the inner circumferential surface of the exterior 3 and the outer circumferential surface of the inner tube 2. A plurality of ring-shaped recesses 6 spaced apart in the axial direction of the inner tube 2 are formed in one of the plurality of recesses 6, and the plurality of the plurality of recessed portions spaced in the circumferential direction of the inner tube 2. A plurality of through holes 12 are formed, and the plurality of balls 7a are seated in contact with or spaced apart from the plurality of recesses 6 in the circumferential direction. 9 shows that the plurality of recesses 6 are formed only in the inner tube 2.

In addition to the above configuration, a plurality of ring-shaped partitions in rolling contact with the plurality of balls 7a are formed on the inner circumferential surface of the outer surface 3 facing the plurality of recesses 6 formed on the outer circumferential surface of the inner tube 2. A wall portion 71 may be formed, as shown in FIG. 9, wherein each of the plurality of partition wall portions 71 has a plurality of through holes 72 spaced apart in the circumferential direction thereof and opened in the axial direction. Is formed, and in the inner circumferential surface of the plurality of partition wall portions 71, recesses may be formed on which the plurality of balls 7a can be seated.

In addition, when a plurality of cylindrical rollers 7b are interposed between the outer surface 3 and the inner tube 2, as illustrated in FIG. 10, the inner circumferential surface of the outer surface 3 and the inner tube 2 are separated from each other. A ring-shaped recess 6 is formed on at least one of the outer circumferential surfaces in the axial direction of the inner tube 2, and the recess 6 is spaced apart in the circumferential direction and the axial direction of the inner tube 2. A plurality of through holes 12 are formed, and the plurality of rollers 7b are seated in contact with or spaced apart from the recess 6 in the circumferential direction. 10 shows that the recess 6 is formed only in the inner tube 2.

In addition to the above configuration, a plurality of ring-shaped partition wall portions 71 in contact with the plurality of rollers 7b in rolling contact with the plurality of rollers 7b are spaced apart from each other in the axial direction, as shown in FIG. 10. In this case, each of the partition wall portions 71 is provided with a plurality of through holes 72 spaced apart in the circumferential direction and opened in the axial direction.

The bubble generator of the fourth embodiment configured as described above may be operated as follows.

When the exterior 3 is rotated while supplying gas from the gas supply pipe 5 to the inner tube 2 and supplying liquid from the liquid supply tube 9 to the exterior 3, the exterior 3 and the inner tube 2 are rotated. The plurality of balls 7a or the plurality of rollers 7b interposed therebetween are rotated in the circumferential direction of the inner tube 2, and each of the plurality of rotating balls 7a or the plurality of rollers 7b is Opening and closing each of the plurality of through holes 12 arranged in a straight line in the circumferential direction of the inner tube 2 are repeated, which is a gas ejected from the plurality of through holes 12 of the inner tube 2. Bubbles are cut in the circumferential direction by the plurality of balls 7a or the plurality of rollers 7b, and the plurality of through holes 72 of the plurality of partition wall portions 71 formed in the rotating appearance 3. And the rotating plurality of balls 7a or the plurality of rollers 7b Due to the axial flow force of the liquid passing through the gap thereof, i.e., the liquid supplied to the outer shell 3, the circumferentially cut bubbles are broken several times in the axial direction and the circumferential direction, so that smaller and smaller diameter bubbles It is discharged together with the liquid through the opening formed by being reduced in the downstream end of the appearance (3) in the state having the particles of.

(Fifth embodiment of the second aspect)

Hereinafter, the bubble generator of the fifth embodiment according to the present invention will be described in detail with reference to FIGS. 11 and 12.

11 shows a bubble generator of the fifth embodiment.

The bubble generator includes an inner tube (2) fixed to the base.

The upstream end of the inner pipe 2 is connected to the liquid supply pipe 9.

The inner tube 2 has an upstream end reduced in diameter and is opened, and a cavity 11 is formed therein. On the circumferential surface of the inner tube 2, a plurality of through holes 12 penetrated in the radial direction are formed spaced apart in the circumferential direction and in the axial direction.

The inner tube 2 has a plurality of balls 7a shown in FIG. 11 or a plurality of balls shown in FIG. 12 in a state in which an outer body 3 which is a rotating body rotated by a driving source (not shown) is rotatably mounted on the base. It is rotatably circumferentially through the two rollers 7b so that the plurality of through holes 12 can be opened and closed during rotation of the appearance by the plurality of balls 7a or the plurality of rollers 7b. The downstream end of the exterior 3 is blocked.

The upstream end of the exterior 3 is connected to the gas supply pipe 5 via the swivel joint 8.

The rest of the configuration of the fifth embodiment is the same as that of the fourth embodiment.

The bubble generator of Embodiment 5 configured as described above may be operated as follows.

When the exterior 3 is rotated while supplying a liquid from the liquid supply tube 9 to the inner tube 2 and supplying gas from the gas supply tube 5 to the exterior 3, the exterior 3 and the inner tube 2 are rotated. The plurality of balls 7a or the plurality of rollers 7b interposed therebetween are rotated in the circumferential direction of the inner tube 2, and each of the plurality of rotating balls 7a or the plurality of rollers 7b is Appearance through the plurality of through holes 12 of the inner tube 2 in a state in which each of the plurality of through holes 12 arranged in a straight line in the circumferential direction of the inner tube 2 is repeatedly opened and closed. A bubble, which is a gas blown into the inner tube 2 in (3), is cut in the circumferential direction by the plurality of balls 7a or the plurality of rollers 7b, so that the inner tube has particles of a constant small diameter bubble. To be discharged together with the liquid through the opening formed by being reduced in the downstream end of (2). do.

(Sixth Example of Second Embodiment)

Hereinafter, the bubble generator of the sixth embodiment of the second aspect according to the present invention will be described in detail with reference to FIGS. 13 and 14.

FIG. 13 shows a bubble generator of the sixth embodiment.

The bubble generator includes an inner tube (2) that is a rotating body rotated by a drive source (not shown).

The upstream end of the inner tube 2 is connected to the liquid supply pipe 9 via a swivel joint 4, and the downstream end of the inner tube 2 is reduced in diameter and opened therein, and a cavity 11 is formed therein. Formed. On the circumferential surface of the inner tube 2, a plurality of through holes 12 penetrated in the radial direction are formed spaced apart in the circumferential direction and in the axial direction.

In the inner tube 2, the outer tube 3 is fixed to the base, and the outer tube 3 is rotatable through the plurality of balls 7a or the plurality of rollers 7b so that the inner tube 2 is rotatable. It is circumscribed so that the plurality of through holes 12 can be opened and closed at the time of rotation of the inner tube by the plurality of balls 7a or the plurality of rollers 7b, and the downstream end of the exterior 3 is blocked. The upstream end of the exterior 3 is connected to the gas supply pipe 5.

When a plurality of balls 7a are interposed between the exterior 3 and the inner tube 2, as illustrated in FIG. 13, at least one of an inner circumferential surface of the exterior 3 and an outer circumferential surface of the inner tube 2. A plurality of ring-shaped recesses 6 spaced apart in the axial direction of the inner tube 2 are formed in one of the plurality of recesses 6, and the plurality of the plurality of recessed portions spaced in the circumferential direction of the inner tube 2. Two through holes 12 are formed, and the plurality of balls 7a are seated in contact with or spaced apart from the plurality of recesses 6 in the circumferential direction. FIG. 13 shows that the plurality of recesses 6 are formed only in the inner tube 2.

In addition to the above configuration, a plurality of ring-shaped partitions in rolling contact with the plurality of balls 7a are formed on the inner circumferential surface of the outer surface 3 facing the plurality of recesses 6 formed on the outer circumferential surface of the inner tube 2. A wall portion 71 may be formed, as shown in FIG. 13, wherein each of the plurality of partition wall portions 71 has a plurality of through holes 72 spaced apart in the circumferential direction thereof and opened in the axial direction. Is formed, and in the inner circumferential surface of the plurality of partition wall portions 71, recesses may be formed on which the plurality of balls 7a can be seated.

In addition, when a plurality of rollers 7b are interposed between the outer surface 3 and the inner tube 2, as shown in FIG. 14, the inner circumferential surface of the outer surface 3 and the outer circumferential surface of the inner tube 2 are provided. Ring-shaped recesses 6 are formed in at least one of the inner tubes 2 in the axial direction, and the recesses 6 are spaced apart in the circumferential direction of the inner tubes 2 and in the axial direction. Two through holes 12 are formed, and the plurality of cylindrical rollers 7b are seated in contact with or spaced apart from the recess 6 in the circumferential direction. 14 shows that the recessed part 6 is formed only in the inner tube 2.

In addition to the above configuration, a plurality of ring-shaped partition wall portions 71 in rolling contact with the plurality of rollers 7b are spaced apart in the axial direction on the inner circumferential surface of the exterior 3. In this case, each of the partition wall portions 71 is provided with a plurality of through holes 72 spaced apart in the circumferential direction and opened in the axial direction.

The bubble generator of the sixth embodiment configured as described above may be operated as follows.

When the inner tube 2 is rotated while supplying liquid to the inner tube 2 from the liquid supply tube 9 and gas from the gas supply tube 5 to the outer tube 3, the outer tube 3 and the inner tube 2 are rotated. The plurality of balls 7a or the plurality of rollers 7b interposed between the tip portions of the plurality of balls 7a or the plurality of rollers 7b are rotated in the circumferential direction of the inner tube 2, and the plurality of rotating balls 7a or the plurality of rollers 7b are each rotated. The opening and closing of each of the plurality of through holes 12 arranged in a straight line in the circumferential direction of the inner tube 2 are repeated, so that the gas introduced into the outer tube 3 enters the outer tube 3. The inner tube 2 rotating while passing through a gap between the plurality of through holes 72 of the formed partition wall portions 71 and the plurality of rotating balls 7a or the plurality of rollers 7b. Gas blown into the inner tube (2) via a plurality of through holes (12) The opening formed by being reduced in the downstream end of the inner tube 2 in a state in which the bubble is cut by the rotating plurality of balls 7a or the plurality of rollers 7b to have particles of smaller, uniform diameter bubbles. It is discharged with the liquid through.

(Seventh embodiment of the second aspect)

Hereinafter, the bubble generator of the seventh embodiment of the second aspect according to the present invention will be described in detail with reference to FIGS. 15 and 16.

15 shows a bubble generator of the seventh embodiment.

The upstream end of the inner tube 2 is connected to the gas supply pipe 5 via a swivel joint 4, and the downstream end of the inner tube 2 is blocked, and a cavity 11 is formed therein. . On the circumferential surface of the inner tube 2, a plurality of through holes 12 penetrated in the radial direction are formed spaced apart in the axial direction and the circumferential direction.

In the inner tube 2, the outer tube 3 is fixed to the base, and the outer tube 3 is rotatable through the plurality of balls 7a or the plurality of cylindrical rollers 7b. The outer circumference is such that the plurality of through holes 12 can be opened and closed at the time of rotation of the inner tube by the plurality of balls 7a or the plurality of rollers 7b. It is reduced in diameter and is opened, and the upstream end of the exterior 3 is connected to the liquid supply pipe 9.

The rest of the configuration of the seventh embodiment is the same as that of the sixth embodiment.

The bubble generator of the seventh embodiment configured as described above may be operated as follows.

When the inner tube 2 is rotated while supplying liquid from the liquid supply tube 9 to the outer tube 3 and gas from the gas supply tube 5 to the inner tube 2, the outer tube 3 and the inner tube 2 are rotated. The plurality of balls 7a or the plurality of rollers 7b interposed between the tip portions of the plurality of balls 7a or the plurality of rollers 7b rotate in the circumferential direction of the inner tube 2, and the plurality of rotating balls 7a or the plurality of rollers 7b each The opening and closing of each of the plurality of through holes 12 arranged in a straight line in the circumferential direction of the inner tube 2 are repeated, so that the gas introduced into the inner tube 2 is discharged from the inner tube 2. The plurality of through holes 72 and the rotating plurality of the partition wall portions 71 formed in the outer surface 3 are bubbled by being blown into the outer surface 3 through the plurality of through holes 12. Rotating through the gap between the two balls 7a or the plurality of rollers 7b The opening formed by being axially reduced at the downstream end of the outer casing 3 in the state of being cut by the rotating plurality of balls 7a or the plurality of rollers 7b, which have smaller and smaller particles of constant diameter. It is discharged with the liquid through.

In the first to seventh embodiments of the second aspect, it is described that at least one of the inner circumferential surface of the exterior and the outer circumferential surface of the inner tube is formed, but the present invention is not limited thereto, and the recess is not formed. In the state, the plurality of balls or the plurality of cylindrical rollers may be interposed between the inner circumferential surface of the exterior and the outer circumferential surface of the inner tube closely or spaced apart.

Further, in the first to seventh embodiments of the second aspect, if the diameter of the through hole of the inner tube is made smaller in the direction through which the gas penetrates, i.e., radially outward or radially inward of the inner tube, It is preferable from the viewpoint that the diameter of the bubble blown out from the hole can be made small.

Further, in the third to seventh embodiments of the second aspect, if a rotating cutting blade (not shown) is provided in the inner tube or the outer body in which the gas (bubble) and the liquid are conveyed together, the bubble may be made even finer. It is preferable from the viewpoint that it can be made.

Further, in the first to seventh embodiments of the second aspect, the bubble generator may be applied to a water tank, a ballast tank, or the like.

Further, in the first to seventh embodiments of the second aspect, a plurality of cylindrical rollers in which the plurality of rollers 7b extends in the axial direction are arranged in plural in the circumferential direction of the inner tube so that the inner tube or the outer body rotates. Although illustrated in the drawings while being described as clouding in the circumferential direction of the inner tube, the present invention is not limited thereto and, although not shown, as an alternative embodiment, a plurality of axes between the inner tube and the outer tube in the circumferential direction of the inner tube. While spaced apart and extending in the axial direction of the inner tube so that both ends are rotatably or fixedly mounted to the inner tube or the exterior, one of the plurality of rollers 7b is not movable in the axial direction on each of the plurality of axes. It may be fixed or rotatable externally, the bubble generator of this alternative embodiment is designed to ensure that By a number of rollers (7b) it is preferable in that they can set a time delay for opening and closing the through hole 12 or the through-hole 13.

In addition, in the above embodiment, instead of the cylindrical rollers extending in the axial direction, a plurality of rollers having an axial length smaller than the diameter, such as abacus balls, are spaced apart in the axial direction so as not to be movable in each of the plurality of axes in the axial direction. May be fixedly or rotatably circumferentially, or fixedly or rotationally in a state in which the plurality of balls 7a of the first to seventh embodiments are not axially movable in each of the plurality of axes. It may possibly be circumscribed.

Further, in the first to seventh embodiments of the second aspect, the exterior or the plurality of balls 7 or rollers 7b interposed between the exterior 3 and the inner tube 2 are fixed bodies or When rotatably coupled to the inner tube, the rotor is rotatable, and when rotatably coupled to the outer tube or the inner tube, the rotation and rotation is described as possible, but the present invention is not limited to this, If the plurality of balls 7 or rollers 7b interposed between 3) and the inner tube 2 are fixedly coupled to the outer tube or the inner tube which is a rotating body, only the revolution is possible, and the sliding body is in sliding contact with the rotating body. It may be.

(First Embodiment of Third Embodiment)

Hereinafter, a bubble generator of embodiments of the third aspect according to the present invention will be described in detail with reference to the drawings.

As shown in Fig. 17, the bubble generator of the third aspect is provided with the outer gear 21 on the outer circumferential surface thereof, and in the axial direction of the outer gear 21 on the plurality of valleys of the outer gear 21. An inner tube 2 having a plurality of through holes 12 spaced apart at regular intervals; An exterior (3) spaced apart at a predetermined interval in the radially outward direction to the inner tube (21) and having an internal gear (31) provided on an inner circumferential surface thereof; And a plurality of planetary gears 40 interposed between the outer gear 21 and the inner gear 31 and engaged with the outer gear 21.

As shown in FIG. 18, a plurality of through holes 13 spaced apart at regular intervals in the axial direction of the internal gear 31 may be formed in the plurality of valleys of the internal gear 31 of the external appearance 3. .

When the plurality of through holes 13 are formed in the exterior 3, downstream ends of the exterior 3 and the inner tube 2 are blocked, as shown in FIG. 18. When the plurality of through holes 13 are not formed, as shown in FIG. 17, the downstream end of any one of the outer surface 3 and the inner tube 2 is blocked and the other downstream end thereof is blocked. It is open.

As shown in FIG. 17, the plurality of planetary gears 40 have an axial direction of the inner tube 2 such that peaks of the plurality of planetary gears 40 selectively face the plurality of through-holes 12. And in the circumferentially spaced apart state, a plurality of planetary gears 40 arranged in a row in the axial direction of the inner tube 2 is optionally a shaft between the inner tube 2 and the outer tube 3. 41 is externally rotatably or fixedly and not axially movable, or the plurality of planetary gears 40 are provided in the plurality of through

holes

12, 13, as shown in FIG. On the axial length of the internal gear 31 and the external gear 21 in a state spaced apart at regular intervals in the circumferential direction of the inner tube 2 so that the peaks of the plurality of planetary gears 40 face selectively. Stretched over selectively Groups inner pipe (2) and not the exterior (3) in a fixed or possibly a rotational axis (41) between and to be movable in the axial direction it can be circumscribed.

As the first case, the plurality of planetary gears 40, as shown in Fig. 19, when the inner tube 2 is rotated by a drive source not shown in the state in which the exterior 3 is fixed, the plurality of planetary gears 40 are rotated. Two planetary gears 40 can be rotated and rotated, and as a second case, as shown in FIG. 20, the plurality of planetary gears 40 are arranged in the circumferential direction of the inner tube 2 in a state where the exterior 3 is fixed. When the planetary gears 40 are rotated by a driving source (not shown), the carriers 42 coupled to the inclined shafts 41 rotatably or rotatably together, the plurality of planetary gears 40 are idle and rotated. As a third case, as shown in FIG. 21, when the outer tube 3 is rotated by a driving source (not shown) while the inner tube 2 is fixed, the plurality of planetary gears 40 are rotated. ) Can be idled and rotated, and as the fourth case, as shown in FIG. A carrier coupled to the shafts 41 in which the plurality of planetary gears 40 disposed in the circumferential direction of the inner tube 2 are rotatably or rotatably rotated together with the inner tube 2 fixed; When 42 is rotated by a driving source (not shown), the plurality of planetary gears 40 may be rotated and rotated. As a fifth case, as shown in FIG. 23, the carrier 42 is fixed. In the case where the outer surface 3 or the inner tube 2 is rotated by a driving source (not shown), the plurality of planetary gears 40 may rotate without rotation, and as a sixth case, as shown in FIG. 23. When the inner tube 2 is rotated by a driving source (not shown) in a state where the carrier 42 and the exterior 3 are not fixed, the plurality of planetary gears 40 may be rotated and rotated.

Since the rotational motion, or the rotational and revolving motion of the plurality of planetary gears 40 is similar to the basic principle of an automatic transmission using known planetary gears, sun gears and ring gears, further detailed description will be omitted below.

In the case where the plurality of through holes 13 are formed in the outer surface 3, as shown in FIG. 18, in the state where the gas supply pipe 5 is connected to the inner tube 2, the outer surface 3 is formed. If the proximal end of is blocked, and the plurality of through holes 13 are not formed in the exterior 3, as shown in FIG. 17, any one of the exterior 3 and the inner tube 2 is provided. The upstream end of which is connected to the gas supply pipe (5) and the other upstream end is connected to the liquid supply pipe (9), and any one of the exterior (3) and the inner pipe (2) connected to the gas supply pipe (5). The downstream end of is closed and the other downstream end connected to the liquid supply pipe 9 is open.

In the case where the plurality of through holes 13 are formed in the outer surface 3, as shown in FIG. 25, an upstream end of the inner tube 2 is connected to the outside air so as to be circulated to the outside air, and the outer surface ( In the case where the plurality of through holes 13 are not formed in 3), as shown in FIG. 26, an upstream end of any one of the exterior 3 and the inner tube 2 can be connected to the outside air. And the other upstream end is connected to the liquid supply pipe 9, and the downstream end of any one of the exterior 3 and the inner pipe 2 connected to the outside air is blocked and connected to the liquid supply pipe 9 The other downstream end is open.

If the outer tube 3 or the inner tube 2 is rotating, the gas supply tube 5 or the liquid supply tube 9 is connected via a swivel joint not shown in the outer tube 3 or the inner tube 2. Can be.

In addition, when the inner tube 2 rotates while the inner tube 2 is connected to the outside air so as to be circulated, a wing 50 may be provided at an upstream end of the inner tube 2.

As shown in FIG. 27, the wing part 50 includes an internal gear 51 provided on an inner circumferential surface of an upstream end of the inner tube 2 and a planetary gear 52 engaged with the internal gear 51. , The sun gear 53 meshed with the planetary gear 52, the wing 54 mounted to the sun gear 53 so as to rotate concentrically with the rotation center of the sun gear 53, and the planetary gear 52 are provided. And a carrier 55 mounted on the planetary gear 52 which is rotatably and non-rotatingly fixed to the base.

The wing part 50 of the embodiment rotates the planetary gear 32 that is not revolved on the carrier 55 as the inner tube 2 rotates, and is engaged with the planetary gear 32. The first sun gear 53 and the blade 54 rotate, and the outside air (air) can be forcibly transferred from the upstream end to the downstream end by the rotation of the blade 54.

In addition, the wing portion 50 is another embodiment, as shown in Figure 28, the internal gear 51 provided on the inner peripheral surface of the upstream end of the inner tube (2), the motor 56 fixed to the base, the Planetary gear meshed with the first sun gear 57, the first sun gear 57 and the internal gear 51 is fixed to the shaft of the motor 56 and rotated concentrically with the rotation center of the inner tube (2). A second planetary gear 58 fixedly circumscribed to the gear S, a shaft S fixedly inscribed to the planetary gear 52, and a second sun gear 59 meshed with the second planetary gear 58. The second sun gear is rotated concentrically with the rotation center of the carrier 55 and the second sun gear 59 which are mounted on the axis S so that the shaft S is rotatable and non-rotating. The wing 54 attached to the 59 is included.

The wing portion 50 of the other embodiment is the inner tube 2 is rotated by the motor 56 via the first sun gear 57 and the planetary gear 52, fixed to the shaft (S) The second planetary gear 58 is also rotated, and the second sun gear 59 and the blade 54 engaged with the second planetary gear 58 are rotated to rotate the blade 54. The outside air (air) can be forcibly transferred from the upstream end to the downstream end.

At this time, the rotation speed of the blade 54 can be easily adjusted through the gear ratio between the second planetary gear 58 and the second sun gear (59).

In addition, the wing portion 50 is a modified embodiment of the other embodiment, as shown in Figure 30, the internal gear 51 provided on the inner peripheral surface of the upstream end of the inner tube 2, the motor fixed to the base 56, a first sun gear 57, the first sun gear 57 and the internal gear 51 fixedly circumscribed to the shaft of the motor 56 to rotate concentrically with the rotation center of the inner tube (2). Rotation of the carrier 55 and the first sun gear 57 fixed to the base by being mounted on the planetary gear 52 that is engaged with the planetary gear 52 and the planetary gear 52 rotatably and non-rotatingly. The blade 54 is mounted to the first sun gear 57 so as to rotate concentrically with the center.

In the wing 50 of the other embodiment, the inner tube 2 is rotated by the motor 56 via the first sun gear 57 and the planetary gear 52, and the first sun gear 57 As the blade 54 rotates, the outside air (air) can be forcibly transferred from the upstream end to the downstream end by the rotation of the wing 54.

In addition, even when the inner tube 2 and the carrier 42 are fixed and the outer surface 3 rotates in a state where the inner tube 2 is circulated to the outside air, the upstream end of the inner tube 2 rotates. It may be provided with a wing 50 of another embodiment.

As shown in FIG. 29, the wing part 50 of the embodiment has a planetary gear 52 fixedly circumscribed to a shaft 41 internally rotatably joined with the planetary gear 40 and the planetary body. A sun gear 53 engaged with the gear 52, and a blade 54 mounted to the sun gear 53 so as to be rotated concentrically with the rotation center of the inner tube 2 and disposed in the inner tube 2; .

In the wing part 50 according to another embodiment of the present invention, the planetary gear 52 is rotated without revolving by the rotation of the exterior 3, whereby the sun gear 53 engaged with the planetary gear 52 is rotated. And the vanes 54 are rotated to force the outside air (air) to be forced from the upstream end to the downstream end by the rotation of the vane 54.

In addition, even when the inner tube 2 or the outer surface 3 is fixed and the carrier 42 rotates in a state in which the inner tube 2 is circulated to the outside air, the upstream end of the inner tube 2 is rotated. Another embodiment may be provided with a wing 50.

As shown in FIG. 31, the wing part 50 of the other embodiment includes an internal gear 51 provided on an inner circumferential surface of an upstream end of the inner tube 2 and a planetary gear 52 engaged with the internal gear 51. ), The motor 56 fixed to the base, and fixedly externally circumscribed to the shaft of the motor 56, rotated concentrically with the rotation center of the internal gear 2, and the planetary gear 52 is revolved and rotated. The first sun gear 57 meshed with the carrier 55, the first sun gear 57 engaged with the planetary gear 52, and the first sun gear 57 to be rotated concentrically with the rotation center of the first sun gear 57. The wing 54 is included.

In the wing 50 of the another embodiment, the planetary gear 52 is rotated and revolved by the motor 56, the first sun gear 57 and the blade 54 is rotated, By rotating the blade 54, the outside air (air) can be forcibly transferred from the upstream end to the downstream end.

The bubble generator configured as described above may be operated as follows.

The plurality of planetary gears 40 rotate by the first to sixth cases, and at least one of the inner tube 2 and the exterior 3 rotates as the planetary gear 40 rotates. The planetary gear 40 opens or closes the plurality of through holes 12 of the inner tube 2 or opens and closes the plurality of through holes 13 of the outer tube 2, so that the inner tube 2 is a gas supply pipe ( 5 is connected to the liquid supply pipe 9 which is lower than the pressure of the gas supply pipe 5, and the exterior 3 is connected to the exterior 3 through the plurality of through holes 12 of the inner pipe 2. The discharged bubbles are blocked by the plurality of planetary gears 40 to generate microbubbles, and then join the liquid flow existing between the exterior 3 and the inner tube 2, Discharged through an opening (if there is no through-hole in the outer tube) or between the outer tube 3 and the inner tube 2 When the product flows into the liquid and is discharged through the plurality of through holes 13 of the exterior 3, it is again blocked by the planetary gear 40 to be discharged as a fine bubble (through holes formed in the exterior). The outer tube 3 is connected to the gas supply pipe 5 and the inner tube 2 is connected to the liquid supply pipe 9 lower than the pressure of the gas supply pipe 5. Bubbles discharged from the outside air into the inner tube 3 through the through hole 12 are blocked by the plurality of planetary gears 40 to generate fine bubbles, and then join the liquid flow of the inner tube 2 to form the inner tube ( 2) can be discharged through the opening of the downstream end (when there is no through hole in the outer tube), and (3) the upstream end of the inner tube 2 instead of the upstream end of the inner tube 2 connected to the gas supply pipe 5; Phase rotated by the magnetic force of the inner tube 2 or the planetary gear 52 in the image When the wing unit 50 is provided, air is introduced into the inner tube by the rotational force of the wing unit 50, and bubbles discharged into the outer tube 3 through the plurality of through holes 12 of the inner tube 2 are formed. Blocked by a plurality of planetary gears (40) to generate a microbubble and then joins the liquid flow existing between the exterior (3) and the inner tube (2) is discharged through the opening of the downstream end of the exterior (3) or (When there is no through hole in the outer tube) or when it flows into the liquid existing between the outer tube 3 and the inner tube 2 and is discharged through the plurality of through holes 13 of the outer tube 3, Blocked again by the gear 40 to be discharged with a finer bubble (when a through hole is formed in the outer tube), or ④ without the upstream end of the inner tube 2 connected to the gas supply pipe 5 and The inner tube without the wing 50 is provided in the inner tube (2) When (2) is rotated, the pressure is lowered by Bernoulli's law that the pressure head is lowered when the speed head is high in the plurality of through-holes 12 of the inner tube 2 because the inner tube 2 rotates. The outside air flows in through the upstream end of the inner tube 2 and the air bubbles discharged into the outer surface 3 through the plurality of through holes 12 are blocked by the plurality of planetary gears 40 to form fine bubbles. After this has occurred, the liquid flow existing between the outer shell 3 and the inner tube 2 joins and is discharged through an opening at a downstream end of the outer shell 3 (when there is no through hole in the outer shell) or the outer shell When entering the liquid existing between the (3) and the inner tube (2) and discharged through the plurality of through-holes 13 of the exterior (3) it is again blocked by the plurality of planetary gears (40) is even more fine bubble Can be discharged When the tube hole formed).

When the through hole is formed in the exterior, when the bubble generator is driven in the state in which the exterior is disposed in the water, fine bubbles can be easily supplied to the tank.

In addition, when the through hole is not formed in the external appearance, the supply pipe can be connected to the external connection or the opening of the inner tube connected to the liquid supply pipe to supply fine bubbles to a desired place.

In addition, in the above embodiments, the diameter of the through hole of the inner tube is preferably smaller in the direction through which the gas penetrates, i.e., radially outward of the inner tube, from the viewpoint of reducing the diameter of the bubble ejected from the through hole. Do.

Further, in the above embodiments, the provision of a rotating cutting blade (not shown) in the appearance in which the gas (bubble) and the liquid are conveyed together is preferable from the viewpoint of making the bubble even finer.

Further, in the above embodiments, the bubble generator can be applied to the ballast tank or the like.

In addition, among the wing parts 50 of the embodiments according to the present invention, the wing parts shown in FIGS. 27, 28, 30, and 31 are formed in a bubble generator without planetary gears, that is, through-holes are formed in the circumferential surface thereof. The bubble generator of the second aspect described above, wherein the inner tube is rotated through a plurality of balls between an inner tube and an outer surface having or without a through hole formed therein to cause the plurality of balls to block the plurality of through holes. The above-mentioned first in which an inner tube having a through hole formed in the circumferential surface and a through hole formed in the circumferential surface rotates the inner tube, thereby blocking the plurality of through holes of the inner tube by the outer appearance. It may be provided in the bubble generator of the sun.

When the wing unit 50 provided in the embodiment of the present invention is applied to the bubble generator of the first or second aspect, even without an air supply source, a swivel joint, an opening / closing valve, and fine at low manufacturing and maintenance costs. It is possible to provide a bubble.

In addition, in the above embodiments, although the wing 50 is described as being disposed inside the upstream end side of the inner tube, the present invention is not limited thereto, and is fixed to the

sun gear

57, 59, or 53. In the inner shaft 2 extending to the downstream end of the inner tube (2), a plurality of wings 54 of the wing portion 50 may be fixedly circumscribed at regular intervals in the longitudinal direction of the inner tube (2), or The wing 54 of the wing 50 may be fixedly circumscribed to the axis and extend over the entire length of the axis with a constant distance in the circumferential direction.

In addition, in the above embodiment, the wing 50 is described as being disposed inside the upstream end side of the inner tube, the present invention is not limited to this, it can be disposed in any portion, such as the downstream end of the inner tube. It is obvious to those skilled in the art.

Further, in the above embodiment, the inner tube 2 through which air other than liquid flows is opened when the pressure formed by the wing 50 is higher than the set pressure and closed when the pressure is lower than the set pressure. A valve which is not provided may be provided, and in particular, if the valve is interposed in an opening formed separately at the closed downstream end of the inner pipe 2, the valve is opened to open air when the valve is higher than the set pressure. It is preferred in that it can be discharged out of the downstream end of

Claims

An inner tube 2 disposed in the water with the tip blocked and formed with a plurality of through holes 12 spaced apart in the axial direction and the circumferential direction on the peripheral surface of the tip,

A gas supply pipe 5 connected to the inner pipe 2 so as to be circulated;

A bubble generator comprising an outer surface (3) formed at the distal end portion of the inner tube (2), the distal end portion being circumferentially formed, and a plurality of through holes (13) spaced apart in the axial direction and the circumferential direction on the circumferential surface of the distal end portion,

One of the inner tube 2 and the outer tube 3 is a rotating body and the other is a stationary body,

The front end portion of the outer appearance 3 is circumscribed by slidingly contacting the front end portion of the inner tube 2,

The bubble generator characterized in that the plurality of through holes (12) of the inner tube (2) and the plurality of through holes (13) of the outer tube (3) are arranged to face in the radial direction.
An inner tube 2 formed with a plurality of through holes 12 spaced apart in the axial direction and the circumferential direction on the circumferential surface of the tip portion disposed in the water while the tip is blocked,

A gas supply pipe 5 connected to the inner pipe 2 so as to be circulated;

A bubble generator comprising an outer surface (3) formed by externally distal end of the inner tube (2), the distal end of which is closed, and a plurality of through holes (13) spaced apart in the axial direction and the circumferential direction on the peripheral surface of the distal end portion,

One of the inner tube 2 and the outer tube 3 is a rotating body and the other is a stationary body,

A plurality of balls 7a or a plurality of rollers 7b are interposed between the distal end of the exterior 3 and the distal end of the inner tube 2 so as to be capable of rotating, rotating or rotating and rotating,

The plurality of through holes 12 and the plurality of through holes 13 are selectively arranged to face each other in the radial direction at the time of rotation of the rotating body, and are opened and closed by the plurality of balls 7a or rollers 7b. Bubble generator characterized in that.
The method of claim 2,

A plurality of ring-shaped recesses 6 spaced in the axial direction of the inner tube 2 are formed on at least one of the inner peripheral surface of the distal end portion 3 and the outer peripheral surface of the distal end portion of the inner tube 2,

Each of the plurality of recesses 6 is formed in the plurality of through holes 12 or the plurality of through holes 13 spaced apart in the circumferential direction of the inner tube 2,

Bubble generator, characterized in that the plurality of balls (7a) is seated in contact with the plurality of recesses (6) in the circumferential direction or spaced apart.
The method of claim 2,

An elongated ring-shaped recess 6 in the axial direction of the inner tube 2 is formed on at least one of the inner peripheral surface of the distal end portion 3 and the outer peripheral surface of the distal end portion of the inner tube 2,

The recessed portion 6 is formed with the plurality of through holes 12 or the plurality of through holes 13 spaced apart in the circumferential direction and the axial direction of the inner tube 2,

Bubble generator, characterized in that the plurality of rollers (7b) is seated in contact with the recessed portion (6) or spaced apart.
The method of claim 2,

The plurality of balls 7a or the plurality of rollers 7b are contacted or spaced apart in the circumferential direction of the inner tube 2,

The plurality of balls 7a or the plurality of rollers 7b are spaced apart in the circumferential direction of the inner tube between the inner tube and the outer tube and extend in the axial direction of the inner tube so that both ends are rotatably or fixedly mounted on the inner tube or the outer tube. A bubble generator, characterized in that each of the two axes is axially spaced apart or fixedly or rotatably circumscribed, or one of the plurality of rollers (7b) is fixedly or rotatably circumscribed.
The method according to any one of claims 2 to 5,

The diameter of the through hole of the inner tube (2) is a bubble generator, characterized in that the smaller in the direction in which the gas penetrates.
An inner tube which is a rotating body formed with a plurality of through holes spaced apart in the axial direction and the circumferential direction on the circumferential surface of the tip portion disposed in the water with the tip open;

A liquid supply pipe connected to the inner pipe so as to be circulated;

A bubble generator comprising an appearance in which a tip end of which is blocked while the gas supply pipe is connected is an outer body fixed to the tip end of the inner tube.

A plurality of balls or a plurality of rollers are interposed between the distal end of the exterior and the distal end of the inner tube so as to be able to rotate, rotate or rotate and rotate,

And the plurality of through holes are opened and closed by the plurality of balls or rollers when the inner tube rotates.
The method of claim 7, wherein

A plurality of ring-shaped recesses spaced in the axial direction of the inner tube are formed on at least one of the inner peripheral surface of the distal end portion and the outer peripheral surface of the distal end portion of the inner tube.

Each of the plurality of recesses is formed in the plurality of through holes spaced apart in the circumferential direction of the inner tube,

And the plurality of balls are seated in contact with the plurality of recesses in the circumferential direction or spaced apart from each other.
The method of claim 7, wherein

An elongated ring-shaped recess is formed in at least one of the inner peripheral surface of the distal end portion and the outer peripheral surface of the distal end portion of the inner tube.

The recessed portion is formed with the plurality of through holes spaced apart in the circumferential direction and the axial direction of the inner tube,

And the plurality of rollers are seated in contact with the recess in the circumferential direction or spaced apart from each other.
The method of claim 7, wherein

The plurality of balls or the plurality of rollers are seated in contact or spaced apart in the circumferential direction of the inner tube, wherein the plurality of balls or the plurality of rollers are spaced apart in the circumferential direction of the inner tube between the inner tube and the outer tube of the inner tube Axially spaced apart or fixedly or rotatably circumferentially spaced in each of a plurality of shafts which are rotatably or fixedly mounted at both ends of the inner tube or the exterior, or one of the plurality of rollers is fixedly or rotatable Bubble generator characterized in that the outer circumference.
The method according to any one of claims 7 to 10,

The diameter of the through-hole of the inner tube is a bubble generator, characterized in that the smaller in the direction in which the gas penetrates.
An inner tube 2 formed in the circumferential surface with a plurality of through-holes 12 spaced apart in the axial direction and in the circumferential direction and connected to any one of the liquid supply pipe 9 and the gas supply pipe 5;

A plurality of balls 7a or a plurality of rollers 7b for opening and closing the plurality of through holes 12 in the inner tube 2 are circumscribed, rotated or rotated and rotated so as to be circumferential and liquid. A bubble generator comprising an appearance (3) connected to the other of the supply pipe (9) and the gas supply pipe (5),

One of the inner tube 2 and the outer tube 3 is a rotating body and the other is a stationary body,

The downstream end of any one of the inner tube 2 and the outer tube 3 connected to the liquid supply pipe 9 is opened,

Bubble generator, characterized in that the downstream end of the other of the inner tube (2) and the outer tube (3) connected to the gas supply pipe (5) is blocked.
The method of claim 12,

A plurality of ring-shaped recesses 6 spaced apart in the axial direction of the inner tube 2 are formed on at least one of the inner circumferential surface of the outer tube 3 and the outer circumferential surface of the inner tube 2, or the outer tube 3 And a ring-shaped recess (6) formed in at least one of an inner circumferential surface of the inner tube and an outer circumferential surface of the inner tube (2) in the axial direction of the inner tube (2).
The method of claim 13,

Each of the plurality of recesses 6 of the inner tube 2 is spaced apart in the circumferential direction of the inner tube 2 so that the plurality of through holes 12 are formed, and the plurality of balls 7a are formed in the plurality of balls 7a. The recess 6 is seated in contact or spaced apart in the circumferential direction, or

In the axial direction elongated in the axial direction of the inner tube 2, the plurality of through holes 12 are formed spaced apart in the circumferential direction and the axial direction of the inner tube 2, and the plurality of rollers 7b ) Is a bubble generator, characterized in that seated in contact with or spaced apart in the circumferential direction (6).
The method of claim 12,

The plurality of balls 7a or the plurality of rollers 7b are in contact or spaced apart in the circumferential direction of the inner tube 2,

The plurality of balls 7a or the plurality of rollers 7b are spaced apart in the circumferential direction of the inner tube between the inner tube and the outer tube and extend in the axial direction of the inner tube so that both ends are rotatably or fixedly mounted on the inner tube or the outer tube. A bubble generator, characterized in that each of the two axes is spaced axially spaced or fixedly or rotatably circumscribed or one of the plurality of rollers (7b) is fixedly or rotatably circumscribed.
The method according to any one of claims 12 to 15,

The diameter of the through hole (12) of the inner tube (2) is a bubble generator, characterized in that the smaller toward the direction in which the gas penetrates.
The method of claim 14,

A plurality of ring-shaped partition wall portions 71 are formed on the inner circumferential surface of the outer surface 3 facing the plurality of recesses 6 formed on the outer circumferential surface of the inner tube 2 in rolling contact with the plurality of balls 7a. Bubble generator characterized in that.
The method of claim 14,

A bubble generator, characterized in that a plurality of ring-shaped partition wall portions (71) formed in contact with the plurality of rollers (7b) are spaced apart in the axial direction on the inner circumferential surface of the outer surface (3).
The method of claim 17,

Bubble generator, characterized in that the inner circumferential surface of the plurality of partition wall portion 71 is formed with a recess for seating a plurality of balls (7a).
The method according to any one of claims 12 to 15,

Bubble generator characterized in that the rotating cutting blade is provided in the inner tube or the outer tube and the liquid is conveyed together.
An inner tube (2) provided with an outer gear (21) on an outer circumferential surface, and having a plurality of through holes (12) spaced in the axial direction of the outer gear (21) in a plurality of bone portions of the outer gear (21);

An exterior 3 spaced apart in the radially outward direction on the inner tube 21 and having an internal gear 31 provided therein; And

It includes a plurality of planetary gears (40) interposed between the outer gear 21 and the internal gear 31 and meshing them.

The downstream end of any one of the exterior 3 and the inner tube 2 is blocked and the other downstream end is open;

Bubble generator, characterized in that at least one of the appearance (3) and the inner tube (2) is a magnetic field.
The method of claim 21,

A plurality of through holes 13 spaced apart in the axial direction of the internal gear 31 are formed in the plurality of valleys of the internal gear 31 of the external appearance 3,

And the other downstream end of the bubble generator.
The method of claim 21 or 22,

The plurality of planetary gears 40 are spaced apart in the axial direction and the circumferential direction of the inner tube 2 such that peaks of the plurality of planetary gears 40 selectively face the plurality of through holes 12 and 13. In the state, a plurality of planetary gears 40 arranged in a line in the axial direction of the inner tube 2 are rotatably or fixedly fixed to the shaft 41 disposed between the inner tube 2 and the outer tube 3. And circumscribed so as not to be movable in the axial direction, or

In the state where the plurality of planetary gears 40 are spaced apart in the circumferential direction of the inner tube 2 such that peaks of the plurality of planetary gears 40 face selectively to the plurality of through holes 12 and 13. The internal gear 31 and the axial length of the external gear 21 extend over the full length and are rotatably or fixedly and axially in an axis 41 disposed between the inner tube 2 and the outer shell 3. Bubble generator characterized in that it is not movable movable.
The method of claim 23, wherein

The plurality of planetary gears 40,

When the inner tube 2 is rotated by the driving source in the state in which the outer surface 3 is fixed, the plurality of planetary gears 40 are rotated and rotated,

A carrier coupled to the shafts 41 in which the plurality of planetary gears 40 disposed in the circumferential direction of the inner tube 2 in a state where the exterior 3 is fixed are inscribed rotatably or rotatably together. When 42 is rotated by the drive source, the plurality of planetary gears 40 are rotated and rotated,

When the exterior 3 is rotated by a driving source while the inner tube 2 is fixed, the plurality of planetary gears 40 are rotated and rotated,

A carrier coupled to the shafts 41 in which the plurality of planetary gears 40 disposed in the circumferential direction of the inner tube 2 are rotatably or rotatably rotated together with the inner tube 2 fixed; When 42 is rotated by the drive source, the plurality of planetary gears 40 are rotated and rotated,

When the exterior 3 or the inner tube 2 is rotated by a driving source while the carrier 42 is fixed, the planetary gears 40 are rotated without revolving,

Bubble generator, characterized in that the plurality of planetary gears (40) is rotated and rotated when the inner tube (2) is rotated by a drive source in a state that the carrier (42) and the outer surface (3) is not fixed.
The method of claim 21 or 22,

In the state in which the gas supply pipe 5 is connected to the inner tube 2, the base end of the outer tube 3 is blocked, or

One upstream end of the exterior 3 and the inner tube 2 is connected to the gas supply pipe 5, and the other upstream end is connected to the liquid supply pipe 9, and connected to the gas supply pipe 5. And the downstream end of any one of the external (3) and the inner tube (2) is closed, and the other downstream end connected to the liquid supply pipe (9) is opened.
The method of claim 21 or 22,

The upstream end of the inner tube 2 is connected to the outside air so as to be circulated.

The upstream end of any one of the exterior 3 and the inner tube 2 is connected to the outside air so as to be circulated to the outside air, and the other upstream end is connected to the liquid supply pipe 9 and the exterior 3 connected to the outside air. ) And the downstream end of any one of the inner pipe (2) and the other downstream end connected to the liquid supply pipe (9) is opened.
The method of claim 21 or 22,

If the outer tube 3 or the inner tube 2 is rotating, the gas supply tube 5 or the liquid supply tube 9 is connected to the outer tube 3 or the inner tube 2 via a swivel joint. Bubble generator.
The method of claim 26

The inner tube (2) is bubble generator, characterized in that the wing portion (50) which is rotated in conjunction with the inner tube (2), the outer (3), or the plurality of planetary gear (40) is provided.
The method of claim 28,

The wing 50 is

Of the internal gear 51 provided on the inner circumferential surface of the inner tube 2, the planetary gear 52 meshed with the internal gear 51, the sun gear 53 meshed with the planetary gear 52, and the sun gear 53. Wings 54 mounted on the sun gear 53 so as to rotate with the rotation center concentrically, and the planetary gear 52 mounted on the planetary gear 52 so as to be able to rotate and not rotate, and fixed to the base ( 55), or

The internal gear 51 provided on the inner circumferential surface of the inner tube 2, the motor 56 fixed to the base, is fixed to the shaft of the motor 56 to be rotated concentrically with the rotation center of the inner tube (2) Fixed to the first sun gear 57, the planetary gear 52 meshed with the first sun gear 57 and the internal gear 51, and the shaft S fixedly inscribed to the planetary gear 52 The second planetary gear 58, the second sun gear 59 meshed with the second planetary gear 58, and the shaft S are mounted on the shaft S so as to be able to rotate and not rotate, and are fixed to the base. Or a wing 54 mounted to the second sun gear 59 so as to rotate concentrically with the rotation center of the carrier 55 and the second sun gear 59,

The internal gear 51 provided on the inner circumferential surface of the inner tube 2, the motor 56 fixed to the base, is fixed to the shaft of the motor 56 to be rotated concentrically with the rotation center of the inner tube (2) The first sun gear 57, the planetary gear 52 meshed with the first sun gear 57 and the internal gear 51, and the planetary gear 52 rotate to the planetary gear 52 so as not to rotate. A carrier 55 mounted and fixed to the base and a blade 54 mounted to the first sun gear 57 to be rotated concentrically with the rotation center of the first sun gear 57;

The planetary gear 52 fixedly circumscribed to the shaft 41 which is rotatably inscribed together with the plurality of planetary gears 40, the shaft 41 is rotatably mounted, and the inner tube 2 is fixed. The carrier 42 fixed to the base in the state of being in the state, the sun gear 53 engaged with the planetary gear 52, and the sun gear 53 to be rotated concentrically with the rotation center of the inner tube 2. Or comprises a wing 54 disposed in the inner tube 2, or

Internally fixed gear 51 provided on an inner circumferential surface of the inner tube 2, a planetary gear 52 meshed with the internal gear 51, a motor 56 fixed to a base, and a shaft externally fixed to a shaft of the motor 56. And a carrier 55 which is rotated concentrically with the rotation center of the internal gear 2 and the planetary gear 52 is revolved and rotated, and the first sun gear 57 meshed with the planetary gear 52. And a blade (54) mounted to the first sun gear (57) to rotate concentrically with the center of rotation of the first sun gear (57).
The method of claim 28,

The inner tube (2) has a bubble generator, characterized in that the valve is opened when the pressure formed by the wing portion (50) is higher than the set pressure, and closed when the pressure is lower than the set pressure.
The inner tube is rotated through a plurality of balls or rollers between an inner tube having a through hole formed on a circumferential surface and an outer surface having or without a formed through hole formed on the circumferential surface thereof, thereby causing the plurality of balls or rollers to cause the plurality of through holes. Bubble generator, or

As a bubble generator for forming a through-hole in the circumferential surface and a through-hole in the circumferential surface to make sliding contact with the inner tube to rotate the inner tube to block the plurality of through-holes of the inner tube by the outer appearance. ,

Bubble generator in the inner tube includes a wing that is rotated by the inner tube or the motor.
The method of claim 31, wherein

The inner tube is provided with a bubble generator, wherein a valve is opened when the pressure formed by the wing is higher than a set pressure and closed when the pressure is lower than the set pressure.