JP2011115745A - Air bubble generating tube - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air bubble generating tube generating fine air bubbles in a simple structure. <P>SOLUTION: The air bubble generating tube 1 includes a tube body, a first compressed part compressed in a flat shape (a horizontal compressed part 10) in a direction perpendicular to the axis of the tube body, a second compressed part (a vertical compressed part 20) compressed in a flat shape in a direction perpendicular to the axis of the tube body and different from that of the first compressed part, and a suction opening 30 installed either at the first compressed part or at the second compressed part. In the air bubble pipe 1, the first compressed part and the second compressed part are alternately formed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a bubble generating tube.

  For example, Patent Document 1 is a nozzle that is provided in a cylindrical shape with a flow path formed therein, and that generates nanobubbles in the liquid, and is an inlet that allows the liquid to flow into one end in the axial direction. Is formed, and an outlet is formed at the other end in the axial direction to allow the liquid mixed with nanobubbles to flow out, and the flow path has the same diameter portion having the same diameter at a predetermined distance from the inlet, and the same diameter. Disclosed is a nanobubble generating nozzle in which a taper portion that gradually spreads from a portion toward an outlet is formed, and a gas introduction hole that introduces gas into a flow path is formed to communicate the same diameter portion and the outside Has been.

JP 2009-160530 A

  An object of the present invention is to provide a bubble generating tube that generates fine bubbles with a simple structure.

  The bubble generating tube according to the present invention includes a tube body, a first squeezed portion compressed in a flat shape in a direction substantially orthogonal to the axis of the tube body, and substantially orthogonal to the axis of the tube body. In a direction different from that of the first pressing unit, and is provided in either the second pressing unit compressed in a flat shape and either the first pressing unit or the second pressing unit. The first squeezing part and the second squeezing part are alternately formed.

  Suitably, the said 2nd pressing part is squeezed in the direction substantially orthogonal to the said 1st pressing part.

  Suitably, the inner diameter of the narrowest part in the said 1st pressing part and a 2nd pressing part is 0.5-2.0 mm.

  Preferably, the diameter of the intake port is 1.0 mm or more and 2.0 mm or less, and the inner diameter of the narrowest portion of the compressed portion closest to the intake port is 0.5 mm or more and 1.0 mm or less. The inner diameter of the narrowest part of the compressed part is 1.5 mm or more and 2.0 mm or less.

  Preferably, at least five or more of the first pressing parts and the second pressing parts are formed.

  According to the present invention, fine bubbles can be generated with a simple structure.

It is a figure which represents typically the use condition of the bubble generation tube. It is (A) top view, (B) side view, and (C) front view of the bubble generating tube 1. 2 is a diagram schematically showing a partial cross section of the bubble generating tube 1. FIG.

FIG. 1 is a diagram schematically illustrating the use state of the bubble generating tube 1.
As illustrated in FIG. 1, the bubble generating tube 1 is used by being connected to a faucet 100. In addition, what connects the bubble generation pipe | tube 1 is not limited to the faucet 100, What is necessary is just to flow out the pumped liquid. In the present embodiment, the bubble generating tube 1 is connected to the faucet 100 via the rubber tube 110, but means for connecting the bubble generating tube 1 to the faucet 1 and the like is not limited to this. . For example, the bubble generating tube 1 may be connected to the faucet 100 by being joined to the shape of the faucet 100 by fitting or fitting, or formed integrally with the faucet 100 or the like.
The water flowing out from the tap 100 contains fine bubbles in the process of passing through the bubble generating tube 1 and is discharged from the bubble generating tube 1. At this time, the fine bubbles contained in the water flowing out from the bubble generating tube 1 are microbubbles. Microbubbles are bubbles having a diameter of 10 to several tens of μm or less. Water containing microbubbles is a colloid with air bubbles, and unlike physical water in terms of physicochemical properties, it has properties such as water purification, bioactivity, and bactericidal action, and is expected to be applied in various fields. Has been.

  As described above, the bubble generating tube 1 is used by simply connecting to the faucet 100 or the like. As a result, the user can easily use the water containing fine bubbles flowing out from the bubble generating tube 1 as agricultural water, drinking water, food processing water, or water for daily life, utilizing the properties of the water. can do.

2A is a top view, FIG. 2B is a side view, and FIG. 2C is a front view of the bubble generating tube 1.
As illustrated in FIG. 2, the bubble generating tube 1 includes a horizontal pressing unit 10, a vertical pressing unit 20, and an intake port 30.

The horizontal pressing part 10 (first pressing part) is a part obtained by pressing a pipe in a flat shape perpendicular to the axis of the pipe, and has a flat inner diameter. The pressing width A inside the pipe in the horizontal pressing unit 10 (the narrowest part of the inner diameter in FIG. 3) is usually 0.5 to 2.0 mm. Further, the vertical pressing unit 20 (second pressing unit) is a portion in which the tube is pressed in a flat shape perpendicular to the horizontal pressing unit 10. The squeezing width A inside the pipe in the vertical squeezing part 20 is usually 0.5 to 2.0 mm, as in the horizontal squeezing part 10. More specifically, the inner diameter of the narrowest portion of the compressed portion provided with the intake port 30 is set to 0.5 to 1.0 mm, and the inner diameter of the narrowest portion of the other compressed portions is set to 1.5 to 2. By setting it to 0 mm, the outflow of water from the intake port 30 is suppressed.
Such horizontal pressing parts 10 and vertical pressing parts 20 are alternately formed in the bubble generating tube 1. At this time, the pressing interval B (see FIG. 3) between the adjacent horizontal pressing unit 10 and the vertical pressing unit 20 is 1.0 to 2.0 times the inner diameter of the tube before pressing. It is preferable. Moreover, in order to prevent backflow, it is more preferable that a part of the pressing interval B is 3.0 to 5.0 times the inner diameter of the tube before pressing.
In addition, in order to make the bubble contained in the water which flows out of the bubble generation tube 1 sufficiently small, it is preferable that at least five or more horizontal compression units 10 and vertical compression units 20 are formed. Moreover, the raw material of the bubble generating tube 1 in which the horizontal squeezing part 10 and the vertical squeezing part 20 are formed is not particularly limited. For example, a synthetic resin such as vinyl chloride, or stainless steel, iron, copper, or aluminum Such as metal. In the case of using a copper tube, it is preferable because the easy spreadability, conductivity and chemical properties of copper are utilized.

  By being formed in this way, the width (inside of the connecting portion) 40 where the horizontal pressing portion 10 and the vertical pressing portion 20 are connected is gradually increased from the horizontal pressing portion 10 and the vertical pressing portion 20. It is formed to spread.

  The intake port 30 is a hole that takes air into the pipe from the outside of the pipe, and is provided in either the horizontal squeezing unit 10 or the vertical squeezing unit 20. In the present embodiment, the intake port 30 is provided in the horizontal squeezing unit 10 through which water that has flowed into the bubble generating tube 1 first passes. In addition, the diameter of the inlet 30 is 1.0-2.0 mm normally so that water may not leak and air can be taken in sufficiently.

FIG. 3 is a diagram schematically showing a partial cross section of the bubble generating tube 1.
As illustrated in FIG. 3, the water flowing out of the faucet 100 first speeds up the flow rate by narrowing the flow path in the horizontal squeezing unit 10 provided with the air inlet 30. At this time, as indicated by Bernoulli's theorem, the water pressure inside the pipe decreases and air flows from the air inlet 30. And the water which flowed out from the tap 100 and the air which flowed in from the inlet port 30 are mixed, and the water which passes the bubble generating pipe 1 will be in the state containing a bubble. Further, when the water pressure inside the tube is lowered, air passing through the bubble generating tube 1 is sucked and generated as bubbles.
Next, the flow rate of the water passing through the bubble generating tube 1 is relaxed by expanding the flow path at the connection portion 40. At this time, the water pressure inside the pipe rises rapidly. Thereby, the bubbles contained in the water passing through the bubble generating tube 1 are reduced and finely broken by the rapidly increasing water pressure. Further, the water passing through the bubble generating tube 1 is turbulently swirled toward the next vertical squeezing unit 20 that is orthogonal, and further destroys the bubbles contained inside.
Next, the water passing through the bubble generating tube 1 has its flow velocity shortened by narrowing the flow path in the vertical compression unit 20. At this time, the water pressure inside the tube decreases, and the bubbles contained in the water passing through the bubble generating tube 1 expand. Further, air passing through the bubble generating tube 1 is sucked and generated as bubbles.
As described above, the water passing through the bubble generating tube 1 repeatedly passes through the horizontal squeezing unit 10, the vertical squeezing unit 20, and the connecting unit 40, thereby reducing the water pressure in the tube as described above / rising and turbulent swirling. Repeatedly affected. Thereby, the bubbles contained in the water flowing out from the bubble generating tube 1 become so fine that they are called microbubbles.

  As described above, the bubble generating tube 1 can generate fine bubbles with a simple structure. Thereby, the bubble generating tube 1 can be produced at low cost by easily deforming the tube, and can be widely used in general households.

[Concrete example]
Using a tube with an inner diameter of 14 mm, air bubbles are formed so that the pressing interval B between the horizontal pressing unit 10 and the vertical pressing unit 20 that are alternately formed is 45 mm, 15 mm, 15 mm, and 30 mm from the inlet side. When the generation tube 1 was formed, the amount of bubbles contained in the water flowing out from the bubble generation tube 1 became suitable.

DESCRIPTION OF SYMBOLS 1 Bubble generation pipe 10 Horizontal type compression part 20 Vertical type compression part 30 Inlet 40 Connection part 100 Faucet 110 Rubber pipe

Claims (5)

A tube body;
A first squeezed portion squeezed in a flat shape in a direction substantially perpendicular to the axis of the tube body; and
A second squeezed portion compressed in a flat shape in a direction substantially perpendicular to the axis of the tube main body and in a direction different from the first squeezed portion;
An air inlet provided in either the first pressing part or the second pressing part,
The said 1st pressing part and the said 2nd pressing part are formed alternately The bubble generation tube. The bubble generating tube according to claim 1, wherein the second pressing unit is compressed in a direction substantially orthogonal to the first pressing unit. The bubble generating tube according to claim 1, wherein an inner diameter of a narrowest portion in the first pressing portion and the second pressing portion is 0.5 mm or more and 2.0 mm or less. The diameter of the air inlet is 1.0 mm or more and 2.0 mm or less,
The inner diameter of the narrowest portion of the compressed portion closest to the intake port is 0.5 mm or more and 1.0 mm or less,
The bubble generating tube according to claim 1, wherein an inner diameter of the narrowest portion of the other compressed portion is 1.5 mm or more and 2.0 mm or less. The bubble generating tube according to any one of claims 1 to 4, wherein at least five or more of the first pressing unit and the second pressing unit are formed.

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