JP2009106918A - Fine bubble generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fine bubble generator capable of efficiently producing a gas/liquid mixture not receiving an influence of fluid motion other than molecular motion such as Brownian motion, temperature variation and pressure variation of a fluid and containing the fine bubbles having a size of low Reynolds Number by a simple structure that trouble is hardly generated, and capable of easily used everywhere. <P>SOLUTION: Principle of free vortex is used, motive power and incidental equipment are not used, a swirling flow speed is accelerated by pouring a liquid at around a city water pressure, and a distal end of a gas introduction thin pipe is placed at a border of a forced vortex and the free vortex, thereby, the fine bubbles are produced. The gas/liquid mixture can be jetted into the liquid or the atmosphere from a jet port by a swirl jet flow. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a fine bubble generator that dissolves a gas in a liquid, efficiently generates fine bubbles in the liquid or the atmosphere, has a simple generator structure, and can be used easily.

  A conventional method for generating fine bubbles in a liquid by a generator is a generator using rapid pressure fluctuations such as ultrasonic waves and shock waves, pressure dissolution, and a venturi tube.

Conventionally, there has been provided an apparatus for generating fine bubbles in a liquid by such a method, but each apparatus has a problem of how to make the gas into fine bubbles.
All currently provided devices are powered and ancillary equipment, and must be simple and easy to use without the use of power and ancillary equipment.

The present invention has been devised in view of the above problems.
Its purpose is to prevent gas-liquid mixtures containing microbubbles of low Reynolds number that are not affected by fluid motion other than molecular motion such as Brownian motion, temperature change, and fluid pressure change. It is an object of the present invention to provide a fine bubble generator that can be efficiently generated with a simple structure that does not easily generate and can be used for various purposes.

In order to achieve the above object, the first, second, third, and fourth aspects of the invention can generate and jet a gas-liquid mixture containing fine bubbles at a low water pressure. Generator.
This generator uses the principle of free vortex, accelerates the swirling flow velocity, and forms a swirl jet outside with a jet velocity that meets various purposes. It is a structure composed of a main pipe and several narrow pipes connected to the pipe tip.
A device for stable and efficient generation of fine bubbles will be described.
A liquid is injected into the generator cylinder body to generate a swirling flow, and a free vortex region and a forced vortex region are formed.
In order to stabilize the vortex core of the forced vortex, a generator cylinder section main body and an inner tube in the main body are provided to form a double cylinder structure.
Further, a hemisphere or a triangular pyramid is provided inside the generator, and a gas introduction main pipe is inserted into the central portion, through which gas is introduced and forced vortex stability and swirl speed are improved.
Fine gas bubbles are generated by the momentum of the high-speed swirling flow by placing the tip of the gas inlet main tube at the boundary between the forced vortex and the free vortex.
As described above, a generator capable of easily generating a gas-liquid mixture containing fine bubbles as a jet flow in the liquid or the atmosphere with low output or small potential energy was created.

The effect of the fine bubble generator according to the present invention described above is as follows.
1 Microbubbles can be generated simply and efficiently with a simple structure.
2 By adjusting the diameter of the gas introduction thin tube and the pressure of the introduction gas, the bubble diameter can be adjusted and the fine bubbles can be stably generated.
3. A liquid containing a large amount of fine bubbles can be ejected into the atmosphere.
4 The structure of the generator is simple, so it is easy to operate and not disturbed.
5 Since the energy to be generated can correspond from water pressure to driving energy, it can be used up to the usage range of oxygen supply in various water tanks.
6 Since various gases and liquids can be injected from the gas introduction pipe, it can be used in various fields.
7 In addition to the use in the relationship between liquid and gas, different types of gas and liquid can be used, and can be easily diffused, mixed, fused or diffused in colloidal form due to the compatibility of gases. .
8 By attaching a cylindrical frame to the generator main body outlet side, it can be used in fields where suction and adsorption of the swirl jet center are applied.
9 It can be used in a field that applies the fact that a jet flow containing silver ions is obtained by using a pure silver material for the generator main body outlet.
It can be shown in the above nine items.

The best mode for carrying out the present invention will be specifically described below.
The range that can be summarized by the generator of the present invention is that the liquid viscosity is equal to or less than the viscosity of water, and the external liquid pressure ejected from the generator is the water level in the case of water pressure for water. Invented up to a water pressure of 2 m or less.

In the following description with reference to the drawings, FIG. 1 is an explanatory view of the longitudinal section and configuration of the generator of the present invention, and FIG. 2 is a transverse sectional view of the generator of the present invention. The liquid is injected, and the swirl flow is formed by the rectifying reed valve (5) in the cylindrical body (1) to stabilize the forced vortex along the double layer (9) with the inner cylinder (2). The swirl flow is accelerated along the hemisphere or the triangular pyramid (10) provided in the central portion while forming a free vortex region and a forced vortex region.
The gas introduction main (7) is inserted in the center, and gas is introduced through this, and the stability and swirl speed of the forced vortex are improved again, and the gas is introduced to the boundary position (A) between the forced vortex and the free vortex. The tip (B) of the narrow tube (8) is placed, and gas is taken in from the gas introduction main tube by the momentum of the swirling flow to generate fine bubbles. The diameter of the fine bubbles, which changes due to external factors such as atmospheric pressure and water pressure, is adjusted by the gas flow adjustment valve (6). The liquid containing fine bubbles forms a swirl jet (C) from the main body jet outlet (4), the central part of the swirl jet becomes a negative pressure region (D), and a flow from the outside sucked is also generated, resulting in a large shear Force works and generates fine bubbles at a higher rate.

Applying suction and adsorption generated in the negative pressure region (D) at the center of the swirl jet (C) by attaching the cylindrical frame (F) of FIG. By using the pure silver material shown in Fig. 4 at the equipment and the spout, a fine mixed solution containing silver ions due to the spout resistance is spouted, and it has a cleaning effect with a small amount of detergent and is environmentally friendly. Equipment development, etc.

Generator cross section of the present invention and explanatory diagram of the configuration Generator cross-sectional view of the present invention Sectional view of a cylindrical frame attached to the generator of the present invention Pure silver material attached to the spout of the generator of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cylindrical part main body 2 Main body double inner pipe 3 Liquid inlet 4 Main body outlet 5 Rectification reed valve 6 Gas flow control valve 7 Gas introduction main pipe 8 Gas introduction thin tube 9 Main body double interlayer 10 Hemisphere or triangular pyramid A Forcing Boundary B between vortex and free vortex B Tip end of gas introduction tube C Swirl jet D Negative pressure region E Boundary position range F of thin tube F Cylindrical frame G Pure silver material

Claims (4)

  The cylindrical generator body has a double cylindrical structure consisting of a cylindrical part main body outer shape (1) and a main body double inner pipe (2), and is provided with a liquid inlet (3) that opens to the outer circumferential part. A rectifying reed valve (5) for forming a swirl flow is attached to the main body double inner pipe, the main body outlet diameter (4) is set to a diameter corresponding to the flow velocity, and the main body outlet A hemisphere or triangular pyramid shape (9) is formed in the center opposite to the center of the gas, and the gas introduction main pipe (6) is inserted into the center of the hemisphere or triangular pyramid to improve the momentum of the swirling flow along the shape, B) is placed at the boundary between forced vortex and free vortex (A). When placed at the boundary, it means from the tip of the hemisphere or triangular pyramid to the outlet (E), through which gas is introduced and forced vortex Micro bubbles are generated by improving the swirl speed while stabilizing the vortex core, Fine-bubble generator, wherein the ejecting microbubbles mixed liquid or in the air.   By placing the tip (B) of the gas introduction thin tube (7) at the boundary (A) between the forced vortex and the free vortex, a gas-liquid mixture containing a large amount of fine bubbles in the atmosphere can be ejected.   A suction and suction device that applies suction and suction generated in the negative pressure region (D) at the center of the swirl jet (C) with a cylindrical frame (F) on the generator main body outlet side.   The generator main body outlet (4) is made of the pure silver material (G) of FIG. 4, and a fine bubble generator in which a fine bubble mixed liquid containing silver ions is ejected by the ejection resistance.

Images