JP2008000685A - Air-water mixture flow generating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air-water mixture flow generating device which jets and disperses an air-water mixture flow, while the device promoting the micronization of bubbles in the air-water mixture flow F<SB>3</SB>. <P>SOLUTION: In the air-water mixture flow generating device, a gyratory water flow F<SB>2</SB>is generated by making compressed water F1 flow into the inner part of a gyratory tube 3 in a tangential direction from its outer part via a compressed water inlet pore 4, and a low-pressure part P, which is hydromechanically generated at the center of the gyratory tube, is made to communicate with the outer part of the gyratory tube 3 by means of an air tube 6, and outside air A sucked through the air tube 6 is involved in a gyratory water flow F<SB>2</SB>to generate an air-water mixture flow F<SB>3</SB>, and an outlet aperture 7 is throttled so that the gyratory tube 3 may become smaller in cross section with the upper side of its upper part to prevent a back flow from the outlet aperture 7 to the low-pressure part P, and then an air-water dispersion cylinder 9, which prevents the pressure of the low-pressure part P from increasing, is arranged on the upper side of the outlet aperture 7. In this case, the aperture of the lower end of the air-water dispersion cylinder 9 is made opposite to the outlet aperture 7 of the gyratory tube 3, and an air-water mixture flow F3, which flows downward after it collides with the ceiling part of the air-water dispersion cylinder 9, is continuously made to collide with the subsequent air-water mixture flow F<SB>3</SB>which flows upward from the gyratory tube 3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an air / water mixed flow generator configured to eject and disperse an air / water mixed flow.

  In detail, the present invention provides, for example, tap water in the tangential direction of the swirl tube from the outside to the inside of the swirl tube through one or more pressurized water inflow holes formed in the tubular wall of the swirl tube. By making the pressurized water flow in, a swirling water flow is formed inside the swirl tube, and a low pressure part generated hydrodynamically at the center of the swirl water flow and the outside of the swirl tube penetrate the bottom of the swirl tube. The swirl tube communicates with the air tube projecting inside the swirl tube, and the air outside the swirl tube sucked through the air tube is entrained in the swirl water flow to generate bubbles, thereby generating a gas-water mixed flow. The upper opening of the swirl tube is narrowed so that the cross-sectional area of the opening becomes smaller toward the upper side of the upper portion of the swirl tube, and water or air from the upper opening of the swirl tube to the low pressure part is reduced. By preventing backflow, pressure increase in the low pressure part The air / water dispersion means for preventing is arranged above the opening at the top of the swirl cylinder, and the air / water mixture flow is configured to be jetted and dispersed through a gap between the lower end of the air / water dispersion means and the top of the swirl cylinder. The present invention relates to an air-water mixed flow generator.

  More specifically, the present invention relates to an air / water mixed flow generator that can promote the miniaturization of bubbles in the air / water mixed flow.

  2. Description of the Related Art Conventionally, an air / water mixed flow generating device (liquid atomizing / dispersing device, bubble washing device) configured to eject and disperse an air / water mixed flow is known. Examples of this type of air-water mixed flow generator (liquid atomization / dispersion device, bubble washing device) are described in, for example, Japanese Patent Laid-Open Nos. 53-69913 and 56-52064. There is.

  In the air / water mixed flow generator (liquid atomizing / dispersing device, bubble washing device) described in JP-A-53-69913 and JP-A-56-52064, one is provided on the cylindrical wall of the swivel cylinder. Alternatively, a plurality of pressurized water inflow holes (fluid supply holes, water outlets) are formed. Further, through the pressurized water inflow hole (fluid supply hole, water jet outlet), pressurized water flows in from the outside of the swivel tube to the inside in the tangential direction of the swirl tube, thereby forming a swirl water flow inside the swirl tube. Is done.

  Specifically, in the air / water mixed flow generator (liquid atomization / dispersion device, bubble face wash) described in JP-A-53-69913 and JP-A-56-52064, the center of the swirling water flow The low-pressure part generated hydrodynamically and the outside of the swivel cylinder are communicated with each other by an air pipe (fluid ejection pipe) that passes through the bottom of the swivel cylinder and protrudes into the swivel cylinder.

  Next, in the air / water mixed flow generator (liquid atomizing / dispersing device, bubble washing device) described in JP-A-53-69913 and JP-A-56-52064, an air pipe (fluid jet pipe) is used. The air outside the swirl tube sucked through the air is entrained in the swirling water flow and is bubbled. As a result, an air-water mixed flow is generated.

  More specifically, in the gas / water mixed flow generator (liquid atomization / dispersion device, bubble face washer) described in JP-A-53-69913 and JP-A-56-52064, an upper part of the swivel tube is used. An opening (fluid outlet) is formed. Furthermore, the upper opening (fluid outlet) of the swirl tube is narrowed so that the cross-sectional area of the opening (fluid outlet) becomes smaller toward the upper side of the upper portion of the swirl tube.

  In addition, in the air / water mixed flow generator (liquid atomizing / dispersing device, bubble washer) described in JP-A-53-69913 and JP-A-56-52064, an opening ( The water / air dispersion means (fluid dispersion plate, air / water dispersion plate) for preventing the pressure rise in the low pressure part by preventing the backflow of water or air from the fluid outlet) to the low pressure part Arranged above the opening (fluid outlet).

  Next, in the air / water mixed flow generator (liquid atomization / dispersion device, bubble washing device) described in JP-A-53-69913 and JP-A-56-52064, air-water dispersion means (fluid dispersion) The air / water mixed flow is ejected and dispersed through a gap between the lower end of the plate and the air / water dispersion plate) and the upper portion of the swivel cylinder.

JP-A-53-69913 JP-A-56-52064

  By the way, in the air / water mixed flow generator (liquid atomizing / dispersing device, bubble washing device) described in JP-A-53-69913 and JP-A-56-52064, air-water dispersion means (fluid dispersion) The lower surface of the plate or air / water dispersion plate is formed in a slightly convex shape or a flat shape.

  For this reason, in the gas / water mixed flow generator (liquid atomization / dispersion device, bubble cleanser) described in JP-A-53-69913 and JP-A-56-52064, the gas flowing from the swirl tube is used. It is considered that the water mixed flow flows along the lower surface of the air / water dispersion means (fluid dispersion plate, air / water dispersion plate) without colliding with each other.

  As a result, depending on the air / water mixed flow generating device (liquid atomizing / dispersing device, bubble washing device) described in JP-A-53-69913 and JP-A-56-52064, The bubbles could not be sufficiently miniaturized.

  Therefore, as a result of earnest research, the present inventors have formed a lower surface of the air-water dispersion means in a concave shape, and thereby the air-water mixture flow that flows substantially downward after colliding with the ceiling of the air-water dispersion means, It has been found that it is possible to continuously collide with a subsequent air / water mixture flow flowing substantially upward from the swirl tube, thereby promoting the miniaturization of bubbles in the air / water mixture flow.

  That is, an object of the present invention is to provide an air / water mixed flow generating device capable of promoting the miniaturization of bubbles in the air / water mixed flow.

  More specifically, the present invention provides an air / water mixture that can promote the miniaturization of bubbles in the air / water mixture flow as compared with the case where the lower surface of the air / water dispersion means is formed in a slightly convex or flat shape. An object is to provide a mixed flow generator.

  According to the first aspect of the present invention, the pressurized water is introduced in the tangential direction of the swivel tube from the outside to the inside of the swirl tube through one or a plurality of pressurized water inflow holes formed in the cylindrical wall of the swirl tube. To form a swirling water flow inside the swirl tube, and pass through the bottom of the swirl tube through the low pressure portion generated hydrodynamically at the center of the swirl water flow and the outside of the swirl tube Then, the air tube is communicated by an air pipe protruding inside the swirl tube, and the air outside the swirl tube sucked through the air tube is entrained in the swirl water flow to form a bubble, thereby generating an air-water mixed flow. And forming an opening in the upper portion of the swivel tube, and narrowing the opening in the upper portion of the swirl tube so that the cross-sectional area of the opening becomes smaller toward the upper side of the upper portion of the swirl tube. Reverse of water or air from the low pressure part to Is disposed above the opening of the upper part of the swivel cylinder, and between the lower end of the air / water dispersion means and the upper part of the swirl cylinder. In the air / water mixed flow generator configured to eject and disperse the air / water mixed flow through the gap, the air / water mixing means is configured by a cylinder having a lower end opened and an upper end closed by a ceiling portion, By making the opening at the lower end of the air / water dispersion means and the opening at the top of the swirl cylinder face each other, the air / water mixture flow that flows substantially downward after colliding with the ceiling of the air / water dispersion means and the swirl cylinder There is provided an air / water mixed flow generating device characterized by continuously colliding with a subsequent air / water mixed flow flowing upward, thereby promoting the miniaturization of bubbles in the air / water mixed flow.

  According to the second aspect of the present invention, as the gap between the lower end of the air / water dispersion means and the upper part of the swivel cylinder, a plurality of comb-shaped notch gaps are provided at the lower ends of the cylindrical walls of the air / water dispersion means. The flow rate of the air / water mixed flow is increased by narrowing the flow path of the air / water mixed flow by the plurality of comb-shaped notch gaps, and an impact splitting effect is given to the bubbles in the air / water mixed flow. An air / water mixed flow generator according to claim 1 is provided.

  According to the third aspect of the present invention, the air / water mixed flow ejected and dispersed through the gap between the lower end of the air / water dispersing means and the upper part of the swirl tube and the central axis of the swirl tube are 2. A dispersion angle setting cylinder for setting an angle to be formed is disposed concentrically outside the swivel cylinder, and the dispersion angle setting cylinder is configured to be movable in the vertical direction with respect to the swivel cylinder. Alternatively, an air / water mixed flow generator according to 2 is provided.

  According to invention of Claim 4, the water quality change substance built-in chamber for incorporating the water quality change substance which changes the water quality of an air-water mixed flow was provided. An air / water mixed flow generator according to the item is provided.

  According to a fifth aspect of the present invention, there is provided the air / water mixed flow generating device according to the fourth aspect, wherein the surrounding means for surrounding the water quality changing substance-containing chamber is detachable. The

  In the air / water mixed flow generating device according to claim 1, the air / water dispersion means is configured by a cylinder having a lower end opened and an upper end closed by a ceiling portion. In other words, the lower surface of the air / water dispersing means is formed in a concave shape. Furthermore, the opening at the lower end of the air / water dispersion means and the opening at the top of the swivel cylinder are opposed to each other.

  Therefore, in the air / water mixed flow generating device according to claim 1, the air / water mixed flow that flows substantially downward after colliding with the ceiling of the air / water dispersion means and the subsequent air / water mixed flow that flows substantially upward from the swirl tube. Are continuously collided with each other, thereby promoting the miniaturization of bubbles in the gas-water mixed flow.

  As a result, according to the air / water mixed flow generator according to claim 1, for example, the air / water mixed flow generator described in JP-A-53-69913, JP-A-56-52064, etc. (liquid The air / water dispersing means is provided with a space for continuously colliding a substantially downwardly flowing air / water mixed flow and a substantially upwardly flowing air / water mixed flow as It is possible to promote the miniaturization of bubbles in the air-water mixed flow than in the case where there is not.

  In the air / water mixed flow generating device according to claim 2, a plurality of comb-shaped notch gaps are formed on the cylindrical wall of the air / water dispersing means as the gap between the lower end of the air / water dispersing means and the upper part of the swivel cylinder. It is formed at the lower end.

  Therefore, in the air / water mixed flow generating device according to claim 2, the flow path of the air / water mixed flow is narrowed by a plurality of comb-shaped notch gaps. In other words, in the air / water mixed flow generating device according to claim 2, a plurality of combs in which the flow path of the air / water mixed flow that flows while radially spreading is formed in the circumferential direction of the cylindrical wall of the air / water dispersion means. It is narrowed in the circumferential direction of the cylindrical wall of the air / water dispersion means by the notch gap.

  As a result, according to the air / water mixed flow generating device according to claim 2, the air / water mixed flow is less than the case where the flow path of the air / water mixed flow is not restricted in the circumferential direction of the cylindrical wall of the air / water dispersion means. The flow velocity of the gas can be increased, thereby giving a shock splitting effect to the bubbles in the gas-water mixed flow.

  Therefore, according to the air / water mixed flow generating device according to claim 2, the air / water mixed flow is more than the case where the flow path of the air / water mixed flow is not restricted in the circumferential direction of the cylindrical wall of the air / water dispersion means. It is possible to promote the miniaturization of bubbles inside.

  In the air / water mixed flow generating device according to claim 3, the air / water mixed flow ejected and dispersed through the gap between the lower end of the air / water dispersion means and the upper portion of the swirl tube and the central axis of the swirl tube are A dispersion angle setting cylinder for setting an angle to be formed is disposed on the concentric outer side of the swivel cylinder. Specifically, in the air / water mixed flow generating device according to claim 3, the air / water mixed flow ejected and dispersed through a gap between the lower end of the air / water dispersion means and the upper portion of the swirl tube is changed to a dispersion angle. By colliding with the upper end of the inner peripheral surface of the setting cylinder, the angle formed by the air / water mixed flow and the central axis of the swirl tube is changed.

  Furthermore, in the air / water mixed flow generating device according to claim 3, the dispersion angle setting cylinder is configured to be movable in the vertical direction with respect to the swivel cylinder. Specifically, in the air / water mixed flow generating device according to claim 3, an angle formed by the air / water mixed flow and the central axis of the swirl tube is increased by increasing a protruding amount of the upper end of the dispersion angle setting cylinder with respect to the swirl tube. By reducing the amount of protrusion of the upper end of the dispersion angle setting cylinder with respect to the swirl tube, the angle formed by the gas-water mixed flow and the central axis of the swirl tube is increased.

  Therefore, according to the air / water mixed flow generator of claim 3, the angle formed by the air / water mixed flow and the central axis of the swivel tube can be easily changed according to the purpose of use of the air / water mixed flow generator, for example. can do.

  Further, according to the air / water mixed flow generating device according to claim 3, the air / water mixed flow and the swirl cylinder are more than the case where the air / water mixed flow cannot collide with the upper end of the inner peripheral surface of the dispersion angle setting cylinder. The angle formed by the central axis can be reduced.

  Furthermore, according to the air / water mixed flow generating device according to claim 3, the air / water mixed flow does not collide with the upper end of the inner peripheral surface of the dispersion angle setting cylinder. Miniaturization can be promoted.

  In the air / water mixed flow generating device according to claim 4, a water quality changing substance built-in chamber for containing a water quality changing material for changing the water quality of the air / water mixed flow such as a magnet or a special ceramic is provided. . Therefore, according to the air / water mixed flow generating device of the fourth aspect, it is possible to generate an air / water mixed flow in which water quality is changed from water such as tap water. Specifically, the gas-water mixture stream can be magnetized or dechlorinated, for example.

  Preferably, the water quality changing substance-containing chamber is constituted by an annular space arranged concentrically outside the swivel tube. Therefore, the contact time between the water quality changing substance and the water can be extended without increasing the size of the entire air-water mixed flow generating device as compared with the case where the water quality changing substance-containing chamber is constituted by a linear space.

  More preferably, the water quality changing substance-containing chamber is arranged on the upstream side of the swirl tube. For this reason, it is possible to avoid the possibility that the bubbles in the air / water mixture flow become larger as the air / water mixture flow comes into contact with the water quality changing substance arranged on the downstream side of the swirl tube.

  In the air / water mixed flow generating device according to claim 5, the surrounding means for surrounding the water quality changing substance-containing chamber is detachable. Therefore, according to the air / water mixed flow generating device of the fifth aspect, the water quality changing substance can be easily exchanged, whereby the water quality of the air / water mixed flow can be easily changed.

  Hereinafter, a first embodiment of the air / water mixed flow generating device of the present invention will be described. FIG. 1 is a front view (cross-sectional view) of the air / water mixed flow generating apparatus of the first embodiment, FIG. 2 is a plan view of the air / water mixed flow generating apparatus of the first embodiment, and FIG. FIG. 4 is a perspective view of the air / water dispersion cylinder 9, and FIG. 5 is a diagram for explaining the function of the dispersion angle setting cylinder 10.

  In the air / water mixed flow generator of the first embodiment, as shown in FIGS. 1 and 3, for example, one pressurized water inflow hole 4 is formed in the cylindrical wall of the swivel cylinder 3. In the air / water mixed flow generator of the second embodiment, a plurality of pressurized water inflow holes 4 can be formed in the cylindrical wall of the swivel cylinder 3 instead.

In the air / water mixed flow generating device of the first embodiment, as shown in FIGS. 1 and 3, the pressurized water F ₁ supplied from the pressurized water supply hole 1 is allowed to pass through the water quality changing substance-containing chamber 2, and then The swirl tube 3 is caused to flow in the tangential direction of the swirl tube 3 from the outside to the inside of the swirl tube 3 through the pressurized water inflow hole 4, thereby forming a swirl water flow F ₂ in the swirl tube 3. As a result, hydrodynamic low pressure portion P is generated in the central portion of the turning water flow F _2.

Furthermore, in the air / water mixed flow generating device of the first embodiment, as shown in FIG. 1, the low pressure part P and the outside of the swivel cylinder 3 penetrate the bottom of the swirl cylinder 3 and the inside of the swirl cylinder 3. The air pipe 6 is made to communicate with each other. Therefore, the external air A sucked through the air inflow hole 5 and the air pipe 6 is entrained in the swirling water flow F ₂ by the low pressure effect of the low pressure part P and is bubbled. As a result, the steam-water mixture flow F ₃ is made to occur.

Further, in the air / water mixed flow generator of the first embodiment, as shown in FIG. 1, an outlet opening 7 is formed in the upper part of the swivel cylinder 3. Further, the outlet opening 7 at the upper part of the swivel cylinder 3 is narrowed so that the cross-sectional area of the outlet opening 7 becomes smaller toward the upper side of the upper part of the swirl cylinder 3. Therefore, when the air / water mixed flow F ₃ passes through the outlet opening 7, the flow velocity of the air / water mixed flow F ₃ is increased.

  Furthermore, in the air / water mixed flow generating device of the first embodiment, as shown in FIG. 1, by preventing the backflow of water or air from the outlet opening 7 at the upper part of the swivel cylinder 3 to the low pressure part P, the low pressure An air / water dispersion cylinder 9 for preventing a pressure increase in the portion P is disposed above the outlet opening 7 at the top of the swivel cylinder 3.

  Specifically, in the air / water mixed flow generator of the first embodiment, as shown in FIGS. 1 and 4, the lower end of the air / water dispersion cylinder 9 is opened, and the upper end is closed by the ceiling. . In other words, the lower surface of the air / water dispersion cylinder 9 is formed in a concave shape. Further, as shown in FIG. 1, the opening at the lower end of the air / water dispersion cylinder 9 and the outlet opening 7 at the top of the swivel cylinder 3 are opposed to each other.

Therefore, in the air / water mixed flow generator of the first embodiment, as shown in FIG. 1, the air / water mixed flow F ₃ that flows substantially downward after colliding with the ceiling of the air / water dispersion cylinder 9, and the swivel cylinder 3. and subsequent air-water mixture flow F ₃ flowing in the schematic upward is continuously caused to collide from, thereby miniaturization of bubbles of the gas-water mixture flow F ₃ is promoted.

  More specifically, in the air / water mixed flow generator of the first embodiment, as shown in FIGS. 1 and 4, a plurality of gaps between the lower end of the air / water dispersion cylinder 9 and the upper part of the swivel cylinder 3 are provided. Is formed at the lower end of the cylindrical wall of the air / water dispersion cylinder 9.

Therefore, in the air / water mixed flow generating device of the first embodiment, the flow path of the air / water mixed flow F ₃ is narrowed by the plurality of comb-shaped notch gaps 8. In other words, in the air / water mixed flow generating device of the first embodiment, the flow path of the air / water mixed flow F _{3 that} flows while spreading radially around the central axis of the swirl tube 3 is the tube of the air / water dispersion cylinder 9. A plurality of comb-shaped notch gaps 8 formed in the circumferential direction of the cylindrical wall are narrowed in the circumferential direction of the cylindrical wall of the air-water dispersion cylinder 9. As a result, when the air / water mixed flow F ₃ passes through the plurality of comb-shaped notch gaps 8, the flow velocity of the air / water mixed flow F ₃ is increased, and thus the bubbles in the air / water mixed flow F ₃ are impacted. A disruptive effect is given.

Next, in the air / water mixed flow generating device of the first embodiment, the air / water mixed flow F ₃ that has passed through the plurality of comb-shaped notch gaps 8 is jetted and dispersed.

Furthermore, in the air / water mixed flow generating device of the first embodiment, as shown in FIGS. 1, 2, and 5, the air / water mixed flow F sprayed and dispersed through a plurality of comb-shaped notch gaps 8 is used. ₄ and dispersion angle formed by the central axis of the pivot tube _{3 (α 1/2, α} 2/2) is dispersed angle setting cylinder 10 for setting is disposed concentrically outside of the swivel tube 3. Specifically, in the air / water mixed flow generating device of the first embodiment, the air / water mixed flow F ₄ ejected and dispersed through the plurality of comb-shaped notch gaps 8 is the inner circumference of the dispersion angle setting cylinder 10. by striking the upper end 11 of the surface, the dispersion angle formed by the central axis of the pivot tube 3 and water-air mixture flow _{F 4 (α 1/2,} α 2/2) is made to change.

  Further, in the air / water mixed flow generator of the first embodiment, as shown in FIGS. 1 and 5, the dispersion angle setting cylinder 10 is configured to be movable in the vertical direction with respect to the swivel cylinder 3. More specifically, the dispersion angle setting cylinder 10 is screwed to the outer cylinder 12, for example, and the amount of rotation of the dispersion angle setting cylinder 10 with respect to the outer cylinder 12 is changed to thereby distribute the rotation cylinder 3 and the outer cylinder 12. The protrusion amount of the upper end 11 of the angle setting cylinder 10 is increased or decreased.

More specifically, in the air / water mixed flow generating device of the first embodiment, as shown in FIGS. 1 and 5, the amount of protrusion of the upper end 11 of the dispersion angle setting cylinder 10 with respect to the swivel cylinder 3 and the outer cylinder 12 is increased. by the dispersion angle formed by the central axis of the pivot tube 3 and water-air mixture flow F ₄₁ (α _1/2) is made to decrease. On the other hand, the turning cylinder 3 and by reducing the amount of protrusion of the upper end 11 of the dispersion angle setting cylinder 10 to the outer cylinder 12, the dispersion angle formed by the central axis of the pivot tube 3 and water-air mixture flow F ₄₂ (α _2/2 ) Is increased.

  As described above, in the air / water mixed flow generating device of the first embodiment, the dispersion angle setting cylinder 10 is screwed to the outer cylinder 12, for example, but the air / water mixing of the third embodiment. In the flow generating device, instead, the dispersion angle setting cylinder 10 is configured to be slidable with respect to the outer cylinder 12 and, for example, the dispersion angle setting cylinder 10 is configured to be fixed to the outer cylinder 12 by screws. It is also possible to increase or decrease the amount of protrusion of the upper end 11 of the dispersion angle setting cylinder 10 with respect to the swivel cylinder 3 and the outer cylinder 12.

Furthermore, in the steam-water mixture flow generating apparatus of the first embodiment, as shown in FIGS. 1 and 3, for example a magnet, a water quality change material that changes the quality of the steam-water mixture flow F _4, such as special ceramic A water quality changing substance built-in chamber 2 is provided for incorporation. Specifically, the water quality changing substance-containing chamber 2 is constituted by an annular space arranged on the concentric outer side of the swivel cylinder 3 and the insertion cylinder 13. A water quality changing substance-containing chamber 2 is disposed on the upstream side of the swivel cylinder 3.

  Moreover, in the air / water mixed flow generating device of the first embodiment, as shown in FIGS. 1 and 2, the upper plate 14 for surrounding the water quality changing substance-containing chamber 2 is configured to be detachable. Specifically, the upper plate 14 is configured to be fixed to the outer cylinder 12 by, for example, screws.

In the first embodiment, the air / water mixed flow generator of the present invention is used in water. That is, the steam-water mixture flow F ₄ is made to jet the dispersion in water. According to the air / water mixed flow generating device of the first embodiment, shock splitting effects are given to the bubbles in the air / water mixed flows F ₃ and F ₄ in a plurality of stages, and bubble miniaturization and bubble natural vibration are caused. Excited. By using the gas-water mixed flow generating apparatus of the first embodiment for cleaning a substance, the physical properties of bubbles, that is, adsorption, friction, levitation, natural vibration in water, and bursting on the water surface Stimulation can be effectively utilized for cleaning bubbles of substances.

In the fourth embodiment, it is also possible to use the air / water mixed flow generator of the present invention in the air instead. That is, in the air / water mixed flow generating device of the fourth embodiment, the air / water mixed flow F ₄ is jetted and dispersed in the air.

  In the fifth embodiment, the above-described first to fourth embodiments can be appropriately combined.

  The air / water mixed flow generator of the present invention is applicable to body skin cleaning / stimulation, for example.

It is a front view (sectional view) of the air-water mixed flow generating device of a 1st embodiment. It is a top view of the air-water mixed flow generator of a 1st embodiment. It is sectional drawing along the II line | wire of FIG. FIG. 3 is a perspective view of the air / water dispersion cylinder 9. It is a figure for demonstrating the function of the dispersion angle setting cylinder.

Explanation of symbols

1: pressurized water supply hole, 2: water quality changing substance built-in chamber, 3: swirl tube, 4: pressurized water inlet hole, 5: air inlet hole, 6: air pipe, 7: outlet opening, 8: comb-shaped notch gap, 9 : Air-water dispersion cylinder, 10: Dispersion angle setting cylinder, 11: Upper end, 12: Outer cylinder, 13: Insertion cylinder, 14: Upper plate

Claims (5)

The inside of the swivel cylinder is made to flow in the tangential direction of the swivel cylinder from the outside to the inside of the swivel cylinder through one or a plurality of pressurized water inflow holes formed in the cylindrical wall of the swivel cylinder. A swirling water flow is formed, and a low pressure portion generated hydrodynamically at the center of the swirling water flow and the outside of the swirling tube are projected through the bottom of the swirling tube and into the swirling tube. An air-water mixed flow is generated by entraining air outside the swirling cylinder sucked through the air pipe into the swirling water flow to form bubbles, and opening the upper portion of the swirling cylinder. The upper opening of the swirl tube is narrowed so that the cross-sectional area of the opening becomes smaller toward the upper side of the upper portion of the swirl tube, and the backflow of water or air from the upper opening of the swirl tube to the low pressure part By blocking An air / water dispersion means for preventing a pressure rise in the pressure section is arranged above the opening at the upper part of the swivel cylinder, and the air / water mixing is performed via a gap between the lower end of the air / water dispersion means and the upper part of the swirl cylinder. In the air-water mixed flow generator configured to jet and disperse the flow,
The air / water dispersion means is configured by a cylinder having a lower end opened and an upper end closed by a ceiling portion, and the opening at the lower end of the air / water dispersion means and the opening at the top of the swivel cylinder are opposed to each other. The air / water mixed flow that flows substantially downward after colliding with the ceiling of the water dispersing means and the subsequent air / water mixed flow that flows substantially upward from the swirl tube are continuously collided, thereby A gas-water mixed flow generator that promotes the miniaturization of bubbles.   As a gap between the lower end of the air / water dispersing means and the upper part of the swivel cylinder, a plurality of comb-like notches are formed at the lower end of the cylindrical wall of the air / water dispersing means, and the plurality of comb-like notches are formed. 2. The gas according to claim 1, wherein the flow rate of the air-water mixed flow is increased by restricting the flow path of the air-water mixed flow by the gap, and an impact splitting effect is given to the bubbles in the air-water mixed flow. Water mixed flow generator.   Dispersion angle setting cylinder for setting an angle formed by a gas / water mixed flow jetted and dispersed through a gap between a lower end of the air / water dispersion means and an upper portion of the swirl tube and a central axis of the swirl tube The gas-water mixed flow generator according to claim 1 or 2, wherein the dispersion angle setting cylinder is configured to be movable in a vertical direction with respect to the swivel cylinder. .   The air / water mixed flow generating device according to any one of claims 1 to 3, further comprising a water quality changing substance-containing chamber for containing a water quality changing substance that changes a water quality of the air / water mixed flow.   5. The air / water mixed flow generating device according to claim 4, wherein surrounding means for surrounding the water quality changing substance-containing chamber is detachable.

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