JPS62353A - Air bubble generator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a bubble generating device that can generate fine bubbles in, for example, a bathtub.

[Background Art] Conventionally, bubble generating devices have been provided that increase the cleaning effect of the body surface or promote blood circulation by mixing air bubbles into hot water in a bathtub and blowing the bubbles onto the body surface during bathing. There is. In this bubble generating device, a porous plate is immersed in a bathtub, and air is blown into the porous plate to generate bubbles in the bathtub from the pores of the porous plate. However, according to this conventional method,
Many of the bubbles generated from the pores of the porous plate have a diameter of 1 mm or more, and it is difficult to generate fine bubbles, so the bubbles immediately rise to the surface of the ice, causing a large amount of bubbles to remain in the bathtub. The cleaning effect on the body surface and the blood circulation promoting effect were poor.

[Object of the Invention] The present invention has been made in view of the above points, and it is possible to miniaturize air bubbles and prevent the coalescence of fine air bubbles (by keeping a large amount of air bubbles in hot water in a bathtub for a long time. The object of the present invention is to provide a bubble generating device that can enhance the body cleansing effect and promote blood circulation by retaining bubbles.

[Disclosure 1 of the Invention] That is, the bubble generating device of the present invention blows air into a rotating body 2 that is installed underwater and rotates in a horizontal direction by the drive of a motor 1, thereby generating air bubbles that are provided on the rotating body 2. This is a bubble generating device that generates bubbles 3 from holes, and the rotating body 2 is formed by closing both upper and lower surfaces of a cylinder 20 whose upper and lower surfaces are open.
It is characterized by forming a porous body 4 and a non-porous body 5 alternately in the circumferential direction, each of which has a large number of pores through which the inner and outer surfaces of a cylindrical body 20 communicate with each other, and rotates. By generating air bubbles 3 from the surface of the rotating body 2, the air bubbles 3 released from the surface of the rotating body 2 into the water can be sheared with the water to generate fine air bubbles 3, and the cylinder body 20
By forming porous bodies 4 and non-porous bodies 5 alternately in the circumferential direction of the cylinder 20, a large number of microbubbles 3 released into the water from the surface of the porous body 4 do not coalesce and grow. In this way, the above objective was achieved.

The present invention will be described in detail below based on examples. FIG. 1 shows an example in which the bubble generator A of the present invention is used in a bubble bathtub 6.
The upper part of the bubble generation tank 9 that generates the bubbles 3 and the buff tank 7
The upper part of the buffer tank 7 and the lower part of the bubble bath 6 are connected by a connecting pipe 22. Further, the upper part of the bubble bath 6 and the lower part of the bubble generating tank 9 are connected by a return pipe 23. Further, a bubble generating section 10 is provided in the lower part of the bubble generating tank 9, and the lower part of the buffer tank 7 and the lower part of the bubble generating section 10 are connected by a bubble supply pipe 11. The bubble supply pipe 11 is provided with a pump 12, and by driving the pump 12, hot water can be circulated to the bubble generation section 10, the bubble supply pipe 11, the buff 77 tank 7, the communication pipe 8, and the bubble generation tank 9. It has become. A pump 24 is also provided on the connecting pipe 22 so that hot water can be sent from the buffer tank 7 into the bubble bathtub 6. In addition, 25 in the figure is an on-off valve provided in the communication pipe 8 and the connecting pipe 22.

The bubble generator A is composed of a rotating body 2 that rotates in the horizontal direction by the drive of a motor 1 and an air supply pipe 13 that supplies air into the rotating body 2. The rotating body 2 is connected to a bubble generating section 10 as shown in the figure. is located underwater. As shown in FIG. 2, the rotating body 2 has a cylindrical body 20 with an open top and bottom, and a rotating plate 14 is fitted into the top opening of the cylinder 20 to close the opening. A fixed plate 16 is fixed to the lower opening of the cylindrical body 20, and an air/zuru 15 is slidably installed in the center of the rotary plate 14 and is vertically attached to the tip of the air supply pipe 13. It is inserted.

Further, the rotating shaft 17 of the motor 1 is inserted into the fixed plate 16 so as to support the rotating body 2 and to be able to rotate the rotating body 2 in the horizontal direction as the motor 1 is driven. As shown in FIGS. 3 and 4, the cylindrical body 20 includes a porous body 4 having a large number of pores communicating with the inner and outer surfaces of the cylindrical body 20, and a non-porous body 5 having no pores. They are formed alternately in the circumferential direction of the cylindrical body 20. The porous body 4 can be formed of a sintered body of synthetic resin powder having continuous pores of about 1 μm mesh, and the non-porous body 5 can be formed of a solid resin body of the same quality as the sintered body. The porous body 4 and the non-porous body 5 are integrated by resin fusion. Note that although the porous body 4 and the non-porous body 5 are formed of sintered bodies of synthetic resin powder, they may also be formed of materials having continuous fine pores such as porous ceramics or metal sintered bodies.

Therefore, when air is supplied into the rotating body 2 from the air supply pipe 13, fine air bubbles 3 are released from the surface of the rotating body 2 into the water through the pores of the porous body 4 of the rotating body 2. However, since the rotating body 2 is rotating in water, a shearing force acts between the surface of the porous body 4 and the surrounding water, and very fine air bubbles 3 are generated from the surface of the porous body 4. is emitted. That is, when the rotating body 2 is not rotating, the bubbles 3 generated from the surface of the porous body 4 are not miniaturized, but are released into the water as large bubbles 3 with a bubble diameter of 11 or more. However, by generating air bubbles 3 from the surface of the porous body 4 while rotating the rotating body 2, the air bubbles 3 are cut by water and become fine air bubbles 3. *In addition, by alternately forming porous bodies 4 and non-porous bodies 5 on the rotating body 2 in the circumferential direction of the cylindrical body 20 to form a striped shape, the bubbles 3 generated from the porous body 4 can be made non-porous. Since the bubbles 3 are cut at the part of the solid body 5 and the bubbles 3 are made fine, the bubbles 3 are not generated from the surface of the non-porous body 5, so a plurality of bubbles 3 are generated.
There is no possibility that the bubbles will coalesce and grow into a large bubble 3. The air bubbles 3 generated in this way are pumped 12
, the bubbles are sent through the bubble supply pipe 11 into the buffer tank 7, and then from the buffer tank 7 through the connecting pipe 22 into the bubble bath 6. *In addition, in this embodiment, as shown in FIG. 1, the bubble supply pipe 11 is formed at the lower part of the supply generating section 10 and is fed to the buff tank 7, so that the bubbles 3a with low buoyancy are The large-diameter air bubbles 3b with high buoyancy are sent to the buff tank 7 along with the water flow, and rise to the water surface of the air bubble generation tank 9, resulting in fine air bubbles 3
Only that can be extracted.

In addition, in FIG. 5, a ring-shaped non-porous part 26 is formed in the cylinder body 20 so that the porous body 4 and the non-porous body 5 are alternately formed in the vertical direction of the cylinder body 20. be. By using this rotating body 2, each porous body 4 on the surface of the cylindrical body 20 is separated vertically and horizontally by a non-porous body 5, so that air bubbles 3 generated from the surface of each porous body 4 are separated.
The bubbles 3 generated from the left and right, upper and lower surfaces of the porous body 4 do not collide with and coalesce, and can maintain the state of the finer bubbles 3. Further, in the cylinder 20 shown in FIG. 6(b), the porosity of the porous body 4 formed in the cylinder 20 is set to increase as it goes downward. In other words, when the rotating body 2 is immersed in the bubble generating section 10 as shown in Figure #6 (,), the water pressure acting on the lower part of the rotating body 2 is greater than that on the upper part of the rotating body 2.
Air bubbles 3 are difficult to generate from the porous body 4 at the bottom of the cylindrical body 20. Therefore, by increasing the exposed area of the porous body 4 toward the bottom of the cylindrical body 20, the air bubbles 3
is generated uniformly from the entire top and bottom of the cylindrical body 20. In the embodiment shown in FIG. 6(b), the vertical width II of the porous body 4 is constant, and the circumferential width dimension 12 of the porous body 4 is
In the embodiment shown in FIG. 7, the circumferential width dimension 12 of the cylinder body 20 is constant, and the vertical width dimension II of the cylinder body 20 is gradually increased as it goes downward. It was designed so that it could be formed.

Further, as shown in FIGS. 8 and 9, the porous body 4 and the non-porous body 5 may be formed finely and alternately on the upper and lower sides and on the left and right sides of the cylindrical body 20, and furthermore, as shown in FIGS. The porous body 4 exposed on the surface of the cylindrical body 20 may be formed obliquely and elongated as shown in FIG. In this embodiment, when the rotating body 2 is rotated, the air bubbles 3 released from the surface of the porous body 4 into the water are at the boundary between the porous body 4 and the non-porous body 5! It is mainly cut and released at the boundary of the porous body 4! Because the bubbles 3 are formed diagonally, as shown in Fig. 11, the bubbles 3 generated from the boundary line 1 are difficult to contact each other (therefore, it is difficult to release them into the water in the form of fine bubbles 3). It is possible.

[Effect of the Invention J As described above, the present invention blows air into the 7-rotating body that rotates in the horizontal direction to generate air bubbles from the pores provided in the rotating body, so that fine particles are removed from the rotating body. It is capable of generating air bubbles, and the rotating body is formed by closing both the upper and lower surfaces of a cylinder whose top and bottom surfaces are open, and the cylinder is provided with numerous pores that communicate with the inside and outside surfaces of the cylinder. Since the porous body and the non-porous body are alternately formed in the circumferential direction, the porous body is separated by the non-porous body in the circumferential direction of the cylinder, and the porous body is generated from the surface of the porous body and released into the water. The microbubbles do not coalesce and become large in diameter, and can remain in the water as microbubbles. It has the advantage of increasing the cleaning effect and promoting blood circulation.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram of an embodiment of the present invention, FIG. 2 is a cross-sectional view of the main parts of the same, FIG. 3 is a perspective view of the rotating body of the same, FIG. 4 is a front view of the same, and FIG. FIG. 6(a) is a perspective view of another embodiment same as above, and FIG. 6(a) is an explanatory diagram showing the relationship between water pressure and water depth.
b) is a front view of a rotating body according to another embodiment of the present invention, and FIG.
c) is an explanatory diagram showing the relationship between water pressure and porosity, FIG. 7 is a front view of still another embodiment of the present invention, FIG. 8 is a front view of still another embodiment of the same as above, and tJIJ9 is the same as above. Explanatory drawing, FIG. 10 is a front view of still another embodiment same as above, t1411
The figure is a front view of the same as above. 1 is a motor, 2 is a rotating body, 3 is a bubble, 4 is a porous body, 5
2 is a non-porous body, 20 is a cylinder, and A is a bubble generator. Agent Patent Attorney Shi 1) Chief 7 Figure 1 Figure 3 Figure 4 Figure 7 Figure 8 Flea Chen No. C 1 □ Yo shoulder

Claims (4)

[Claims] (1) A bubble generator that blows air into a rotating body that is installed underwater and rotates horizontally by a motor to generate air bubbles through pores provided in the rotating body. It is formed by closing both the upper and lower surfaces of a cylindrical body that is open, and the cylindrical body is made up of a porous body and a non-porous body that are provided with a large number of pores that communicate with the inner and outer surfaces of the cylindrical body, and are alternately formed in the circumferential direction. A bubble generator characterized by comprising: (2) The first claim characterized in that the porous body and the non-porous body are alternately formed in the vertical direction of the cylindrical body.
The bubble generator described in Section 1. (3) The bubble generating device according to claim 1 or 2, characterized in that the porosity of the porous body increases as it goes downwards in the cylindrical body. (4) The bubble generator according to any one of claims 1 to 3, characterized in that the portion of the porous body exposed on the surface of the cylinder is formed obliquely long. .