JP2895686B2 - Liquid flow generator with microbubbles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for generating a fluid flow containing microbubbles used in a pool, a bath or the like.

[0002]

2. Description of the Related Art At present, facilities for jetting a water flow mixed with air bubbles, such as a jacuzzi, a whirlpool, and an ultrasonic bubble bath, are widely used. However, in this type of equipment at present, the size of bubbles mixed into the liquid is relatively large, and it is not considered that ultrasonic waves, which are said to be generated when the bubbles burst, are generated. In order to generate ultrasonic waves, it is necessary to reduce the size of bubbles, and it is also necessary to generate a large amount of reduced bubbles.

FIG. 1 shows an example of the configuration of this type of apparatus currently used. The housing 1 is mounted on a wall such as a jacuzzi, and a water passage 2 to which water from a pump (not shown) is supplied is formed in the housing 1, and water is ejected from a nozzle 3 at the end thereof. On the other hand , the air is automatically sucked from the air passage 4, mixed as air bubbles by the jet flow from the nozzle 3, and jetted out from the jet port 5 as a bubble incoming flow. As described above, in this type, since the bubbles are only formed into bubbles by being entrained in the jet, the bubble diameter remains large and the dispersion is large. Therefore, development of an apparatus for generating a jet containing sufficiently miniaturized bubbles is desired.

[0004]

SUMMARY OF THE INVENTION The present invention provides a microbubble liquid flow generator with a simple mechanism in which sufficiently miniaturized air bubbles can be mixed in a sufficient amount and in an adjustable, constant amount. The purpose is to provide.

[0005]

That is, the present invention relates to a liquid passage for flowing a liquid, a gas passage for flowing a pressurized gas, a porous body disposed at an interface between the two passages, and a porous body.
Is located in the fluid passage downstream of the
By leaving the gas in the gas passage by microbubbles of it through the porous body is sucked into the liquid passage and mixed into the liquid, and this
Injection of a microbubble incoming liquid ejected from the liquid passage with the liquid
The present invention provides a microbubble-introduced liquid flow generator having an outlet means.

Here, it is preferable to provide a means for preventing gas pressure from flowing back upstream of the gas passage, and the porous body is preferably a cylindrical or flat ceramic filter.

[0007]

In the present invention, since a pressurized gas such as air is mixed into a fluid flow such as water through a porous material such as a ceramic filter, it is only necessary to make bubbles sufficiently small and fine. However, the size of the microbubbles is uniform, and the amount is also quantitatively supplied. Therefore, an ultrasonic wave is also generated at the time of bursting of air bubbles, and when used in a jacuzzi, bath, pool, or the like, it is extremely advantageous for health promotion, and is structurally simple and convenient.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a preferred embodiment of the present invention. Hereinafter, water will be described as a typical example of liquid, and air will be described as a representative example, but other types of liquid and gas may be used. First, FIG. 2 conceptually describes the present invention. In FIG. 2, the device 10 of the present invention is such that a water passage 13 is defined inside a housing 11 through a porous body 12 and an air passage 14 is defined outside the housing. Water is supplied to the water passage 13 by a supply pipe 15, and air is supplied to the air passage 14 by a supply pipe 16 from a pressurized air source (not shown). An outlet 17 is provided on the downstream side of the water passage 13, from which a bubble-incoming water stream is ejected to a tank such as a pool or a bath. A jet forming means 18 for performing the jetting is provided downstream of the porous body 12 and upstream of the jet outlet 17. Water is supplied to the jet forming means 18 by a supply pipe 20. And each supply pipe 15,16,2
0 is provided with pressure regulating means 21 for supplying water and / or air at an appropriate pressure. The porous body may be flat or cylindrical.

When water is jetted from the jet forming means 18 toward the jet port 17 while supplying water to the water channel 13 and air to the air channel 14, the air is discharged from the air channel 14 to the porous body 12.
Then, the air is converted into microbubbles by the porous body 12 at this time, and the water flow containing an extremely large number of such microbubbles is supplied from the jet port 17 to a tank such as a pool or bath.

Next, an example of a configuration embodying the concept shown in FIG. 2 will be described with reference to FIG. The bubble-containing liquid flow generator 10 according to the present invention includes a housing 11, a tank wall 2 for a pool, a bath and the like.
2 and a decorative plate 24. The hollow porous body 12 is mounted in the housing 11 in a sealed state by a hollow support 25 and a closing plate 26. The hollow part of the hollow support 25 and the hollow porous body 12 is
And an air passage 14 is defined between the housing 11 and the porous body 12. A nozzle 27 is provided in a hollow portion of the support 25, and water is jetted from the jet forming means 18 through a water supply passage 28 defined in the housing.
You. Thereby, as described above, the water passage
Air is sucked into the passage 13 to form water containing microbubbles,
Along with the water jetted from the jet forming means 18, the nozzle 27
Squirted more.

Air passage 14, water passage 13 and water supply passage 2
8, supply pipes 29, 30, and 31 are connected through openings formed in the closing plate 26, and a manual or automatic valve 32 is provided in the middle of the supply pipes. It is preferable to provide a valve 33 which performs a check operation together with the pressure adjustment shown in FIG. 4 at the end of the air supply pipe 29. In FIG. 4, 34 is a housing, 35 is a mounting flange, 36 is a ring sheet packing, 37 is a float, and 38 is an air flow path. This valve adjusts the air volume and the air pressure when air flows in the direction of the normal arrow 39, and when the air flow 39 is stopped or becomes small, the float 37 comes into contact with the packing 36 and the water in the water passage 13 becomes air. It prevents entry into the passage 14. The pressurized air can be supplied using any means such as a floor or a compressor.

FIG. 5 is an end view of the apparatus of the present invention shown in FIG. As best seen in FIGS. 3 and 5, air from an air passage 14 connected to a source of pressurized air (not shown) passes through a wall of a porous body 12, such as a ceramic filter, as indicated by arrow 40. Then, when entering the water in the water passage 13, a very large number of minute air bubbles are formed, and a water flow mixed with the minute air bubbles is obtained. This is accelerated by the jet of the nozzle 27 and is jetted from the jet port 17 to a water tank such as a pool or a bath.

[0013]

According to the present invention, since microbubbles are formed by passing pressurized air through a porous body, a water flow mixed with microbubbles which has not been obtained conventionally can be obtained. The generation of an ultrasonic wave is obtained. Therefore, it is beneficial for health promotion and its structure is simple.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a conventional bubble-containing liquid flow generator.

FIG. 2 is a diagram illustrating the concept of a bubble-containing liquid flow generating device according to the present invention.

FIG. 3 is a partial cross-sectional view showing an example of a specific configuration of the bubble-containing liquid flow generating device shown in FIG.

FIG. 4 is a sectional view showing an example of the structure of a check valve used in the present invention.

FIG. 5 is an end view of the device of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 2 Liquid passage 3 Nozzle 4 Gas passage 5 Spout 10 Device of the present invention 11 Housing 12 Porous body 13 Water passage 14 Air passage 15, 16, 20 Supply pipe 17 Spout 18 Jet forming means 21 Pressure regulating means 22 Tank Wall 23 Mounting plate 24 Decorative plate 25 Support 26 Closure plate 27 Nozzle 28 Water supply channel 29, 30, 31 Supply pipe 32 Valve 33 Pressure-regulating check valve 34 Housing 35 Mounting flange 36 Packing 37 Float 38 Air flow path 39 Air flow direction 40 arrow

Claims (4)

(57) [Claims] A liquid passage for flowing a liquid, a gas passage for flowing a pressurized gas, a porous body disposed at an interface between the two passages, and a fluid passage downstream of the porous body, Downstream liquid
By ejecting the gas in the direction, the gas in the gas passage is sucked into the liquid passage through the porous body, turned into microbubbles and mixed into the liquid,
And a jetting means for jetting the liquid containing the microbubbles from the liquid passage together with the liquid. 2. The microbubble-introduced liquid flow generating device according to claim 1, further comprising means for preventing gas pressure from flowing back upstream of the gas passage. 3. The liquid flow generator according to claim 1, wherein the porous body is a cylindrical or flat ceramic filter. Wherein said regulating圧逆flow preventing means microbubble incoming liquid flow generating device according to claim 2 or 3 is a float check valve.