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WO2008140139A1 - Micro bubble occurrence nozzle - Google Patents

Micro bubble occurrence nozzle Download PDF

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Publication number
WO2008140139A1
WO2008140139A1 PCT/KR2007/002385 KR2007002385W WO2008140139A1 WO 2008140139 A1 WO2008140139 A1 WO 2008140139A1 KR 2007002385 W KR2007002385 W KR 2007002385W WO 2008140139 A1 WO2008140139 A1 WO 2008140139A1
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle
mixed liquid
micro
bubble occurrence
receiving member
Prior art date
Application number
PCT/KR2007/002385
Other languages
French (fr)
Inventor
Takashige Kikuchi
Original Assignee
Kikuchi Eco Earth Co., Ltd
Ishihara Seisakusho Co., Ltd
Remake Co., Ltd.
You, Yen-Geun
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kikuchi Eco Earth Co., Ltd, Ishihara Seisakusho Co., Ltd, Remake Co., Ltd., You, Yen-Geun filed Critical Kikuchi Eco Earth Co., Ltd
Priority to PCT/KR2007/002385 priority Critical patent/WO2008140139A1/en
Publication of WO2008140139A1 publication Critical patent/WO2008140139A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3426—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels emerging in the swirl chamber perpendicularly to the outlet axis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/02—Bathing devices for use with gas-containing liquid, or liquid in which gas is led or generated, e.g. carbon dioxide baths
    • A61H33/027—Gas-water mixing nozzles therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B01F23/2323—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B01F25/452—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces
    • B01F25/4521—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through orifices in elements, e.g. flat plates or cylinders, which obstruct the whole diameter of the tube
    • B01F25/45211—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through orifices in elements, e.g. flat plates or cylinders, which obstruct the whole diameter of the tube the elements being cylinders or cones which obstruct the whole diameter of the tube, the flow changing from axial in radial and again in axial
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/81—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/81—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles
    • B01F33/811—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles in two or more consecutive, i.e. successive, mixing receptacles or being consecutively arranged
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3463—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels extending outwardly, e.g. radially from the inside to the outside
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3478—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet the liquid flowing at least two different courses before reaching the swirl chamber

Definitions

  • the present invention relates to a micro bubble occurrence nozzle that receives mixed liquid, in which gas and liquid are mixed in the outside of the nozzle, to generate micro bubbles, and more particularly, to a micro bubble occurrence nozzle that receives mixed liquid, in which gas and liquid are first mixed in the outside of the nozzle to contain bubbles, at a predetermined pressure to discharge micro bubbles.
  • bubbles are universally used for maintaining cleanliness or recovering from fatigue. Recently, healthy and more fragrant bubble bath without damaging skin is being favored. Also, the bubbles are used for supplying oxygen to an aquarium for ornamental fishes or a farm for fish and shellfish.
  • the bubbles are used as methods for increasing dissolved oxygen that decreases due to increases in water pollution and for sterilizing and purifying water and air.
  • the bubbles is generally generated using various fountains, waterfalls, and oxygen aerations in closing waters such as lakes or swamps and dams, farms, and combined septic tanks.
  • theirs efficiencies are insufficient, and it can expect only small effects. This is done because a bubble diameter injected into and in contact with the water is large, and the bubble rises at once due to their diameter. Therefore, the effects capable of increasing the dissolved oxygen of the water cannot be expected.
  • Such a micro bubble occurrence device is disclosed in Korean Registered Patent Application No. 10-0465756, titled "Air Bubble Solution Apparatus”.
  • the air bubble solution apparatus includes a spiral stream generator 1.
  • the spiral stream generator 1 includes a spiral stream pipe 2, a spiral stream generating wing 3, a gas inlet port 4, a bubble breaking pipe 5 and a plurality of bubble breaking protrusions 6.
  • the spiral stream generating wing 3 has a spiral shape and generates a spiral stream in the same direction within the spiral stream pipe 2.
  • the gas inlet port 4 including a control valve (not shown) is disposed at a front end portion of the spiral stream pipe 2.
  • the bubble breaking pipe 5 having a diameter smaller than that of the spiral stream pipe 2 of the spiral stream generator 1 integratedly extends from one end of the spiral stream pipe 2 of the spiral stream generator 1.
  • the plurality of bubble breaking protrusions 6 is regularly arranged on an inner surface of the bubble breaking pipe 5 in a center direction thereof.
  • the bubble breaking protrusions 6 must be arranged in pairs of three and at spaced 12O 0 C intervals along a side surface. That is, the bubble breaking protrusions 6 must be disposed in pairs of three stages to four stages per unit length of the bubble breaking pipe 5, e.g., per 10 cm. In case where the bubble breaking protrusions 6 is less than three stages, it is insufficient to finely break the bubbles contained in the liquid spiral-streamed by the spiral stream generating wing 3. On the other hand, in case where the bubble breaking protrusions 6 excesses four stages, it is difficult to obtain a smooth liquid flow due to increase of flow resistance. Thus, it is difficult to satisfactorily break the bobbles, and their construction becomes complicated. In addition, the spiral stream generating wing 3 and the bubble breaking protrusions 6 should be separately assembled, and the liquid is discharged to the outside due to gas injection.
  • An object of the present invention is to provide a micro bubble occurrence nozzle that can be easily assembled due to simple composition, reduce manufacturing costs due to simple construction, obtain micro bubbles, and cannot require auxiliary facilities because it is simply coupled to existing equipment.
  • a micro bubble occurrence nozzle including: an inner receiving member receiving mixed liquid in which gas and liquid are mixed in an outside at a predetermined pressure to discharge the mixed liquid; and an outer bubble occurrence member receiving the inner receiving member therein, the outer bubble occurrence member receiving the mixed liquid discharged from the inner receiving member to discharge micro bubbles due to collision or rotation of the mixed liquid.
  • the inner receiving member may include at least one or more first through holes having one side and the other side, the one side being opened to receive the mixed liquid and the other side passing through a closed inner tube to discharge the mixed liquid at a high pressure.
  • the inner receiving member may include at least one or more second through holes having one side and the other side, the one side being opened to receive the mixed liquid and the other side eccentrically passing through a closed inner tube to discharge the mixed liquid at a high pressure.
  • the inner receiving member may include at least one or more first through holes having one side and the other side, the one side being opened to receive the mixed liquid and the other side passing through a closed inner tube to discharge the mixed liquid at a high pressure and at least one or more second through holes eccentrically passing through the inner tube to discharge the mixed liquid at the high pressure.
  • the outer bubble occurrence member may include: a coupling portion to which the inner receiving member is coupled and fixed; an inner tube receiving the inner receiving member fixed by the coupling portion and including an inside surface, the inner tube receiving the mixed liquid discharged from the inner receiving member; and a discharging portion through which one side of an outer tube is opened to discharge the micro bubbles.
  • the second through hole eccentrically passing through the inner tube of the inner receiving member may obliquely pass through the inner tube with a predetermined angle.
  • the inner receiving member may include coupling portions on communicated both sides of the inner tube.
  • the inner receiving member may include at least one or more inner receiving members arranged in a length direction, and the coupling portions disposed on the inner tube are connected and fixed to each other by a coupling member.
  • at least one or more micro bubble occurrence nozzles may be connected and fixed to each other to sequentially generate the micro bubbles.
  • the inner tube of the inner receiving member can be coupled to the outer bubble occurrence member to provide simple assembly and disassembly.
  • the assembly thereof and simple change and replacement for cleaning are easy.
  • a process of manufacturing the micro bubble occurrence nozzle can be simple, and manufacturing costs can be reduced due to reduction of materials and easy of maintenance and repair.
  • the manufacturing costs can be reduced because existing pipe facilities can be used without requiring facility expansion.
  • the mixed liquid discharged from the first through hole and the second through hole passing through the inner receiving member can be compressed, collide and rotate to easily generate the micro bubbles.
  • the user can adjust the micro bubble occurrence through various dispositions and arrangements of the through holes. Therefore, the user can easily use the required micro bubbles through the simple assembly.
  • FIG. 1 is a cross-sectional view of a conventional air bubble solution apparatus.
  • FIG. 2 is a cross-sectional view of a micro bubble occurrence nozzle according to a first embodiment of the present invention.
  • FIG. 3 is a side cross-sectional view of the micro bubble occurrence nozzle according to the first embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of a micro bubble occurrence nozzle in which a second through hole is oblique according to a second embodiment of the present invention.
  • FIG. 5 is a side cross-sectional view of a micro bubble occurrence nozzle including a first through hole and a second through hole according to a third embodiment of the present invention.
  • FIG. 33 FIG.
  • FIG. 6 is a cross-sectional view of a micro bubble occurrence nozzle extending in a length direction according to a fourth embodiment of the present invention.
  • FIG. 7 is a cross-sectional view of a micro bubble occurrence nozzle including a plurality of inner receiving members connected to each other according to a fifth embodiment of the present invention.
  • FIG. 8 is a cross-sectional view of a plurality of micro bubble occurrence nozzles connected to each other, in which each of the micro bubble occurrence nozzles discharges micro bubbles according to a sixth embodiment of the present invention.
  • FIG. 9 is a cross-sectional view of a plurality of micro bubble occurrence nozzles connected to each other, in which the plurality of micro bubble occurrence nozzles sequentially discharges micro bubbles according to a seventh embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of a micro bubble occurrence nozzle according to a first embodiment of the present invention
  • FIG. 3 is a side cross-sectional view of the micro bubble occurrence nozzle according to the first embodiment of the present invention.
  • the premise of the present invention is that the micro bubble occurrence nozzle can be installed in a state of a universal pipe, and mixed liquid first mixing liquid with gas is exerted at a predetermined pressure.
  • a micro bubble occurrence nozzle 10 includes an inner receiving member 20, and an outer bubble occurrence member 30. The inner receiving member
  • the 20 includes an inner tube 22, a first through hole 24, and a second through hole 26.
  • the inner receiving member 20 has one side and the other side. The one side is opened to receive mixed liquid at a predetermined pressure, and the other side is closed to provide the inner tube 22.
  • the first through hole 24 passes through the inner tube 22 to discharge the compressed mixed liquid at a high pressure.
  • the second through hole 26 eccentrically passes through the inner tube 22 at a position corresponding to the first through hole 24 to discharge the mixed liquid at the high pressure.
  • the outer bubble occurrence member 30 includes a coupling portion 32, an outer tube 36, and a discharging portion 38.
  • the coupling portion 32 is fixedly coupled to an outer circumference of the inner tube 22 of the inner receiving member 20.
  • the outer tuber 36 receives the inner receiving member 20 fixed to the coupling portion 32 and includes an inside surface 34 that collides with the mixed liquid discharged from the inner receiving member 20 to receive the mixed liquid.
  • the discharging portion 38 opens one side of the outer tube 36 to discharge micro bubbles.
  • the coupling portion 32 is screw-coupled (not shown) to the outer circumference of the inner tube 22 to firmly fix the inner receiving member 20 to the outer bubble occurrence member 30 while the inner receiving member 20 and the outer bubble occurrence member 30 are sealed against each other.
  • another coupling methods may be used for a user convenience.
  • one side of the inner tube 22 of the inner receiving member 20 is coupled to an external pipe (not shown) to receive the mixed liquid into the inner tube 20 at a predetermined pressure.
  • the mixed liquid received into the inner tube 20 is discharged through the first through hole 24 and the second through hole 26 to collide with the inside surface 34 at the high pressure and discharge the micro bubbles.
  • the second through hole 26 eccentrically passes through the inner tube 22 to collide with the inside surface 34, and at the same time, rotate along the inside surface 34.
  • the mixed liquid including the micro bubbles rotates to smoothly generate the micro bubbles.
  • the micro bubbles are uniformly distributed and discharged through the discharging portion 38.
  • the mixed liquid passes through the first through hole 24 and the second through hole 26 having small diameters, respectively, at the predetermined pressure to finely compress large bubbles contained in the mixed liquid and discharge the compressed mixed liquid at the high pressure.
  • the mixed liquid discharged at the high pressure collides with the inside surface 34 of the outer tube 36 of the outer bubble occurrence member 30 to finely divide the bubbles yet again.
  • the mixed liquid discharged through the second through hole 26 collides with the inside surface 34, and at the same time, rotates along the inside surface 34 to uniformly distribute the micro bubbles.
  • the micro bubbles are again divided by mutual collision of the micro bubbles due to rotation of the mixed liquid.
  • FIG. 4 is a cross-sectional view of a micro bubble occurrence nozzle in which a second through hole is oblique according to a second embodiment of the present invention.
  • a second through hole 26 disposed in an inner tube 22 of an inner receiving member 20 has a predetermined angle.
  • the second through hole 26 obliquely passes through the inner tube 22 at about 45 0 C to allow mixed liquid including micro bubbles to smoothly rotate along an inside surface 34 of an inner tube 36 of an outer bubble occurrence member 30.
  • FIG. 5 is a side cross-sectional view of a micro bubble occurrence nozzle including a first through hole and a second through hole according to a third embodiment of the present invention.
  • at least one or more first through holes 24 and second through holes 26 which are arranged in an inner tube 22 of an inner receiving member 20 can pass through the inner tube 22 of the inner receiving member 20, to easily increase a generation amount of micro bubbles.
  • FIG. 6 is a cross-sectional view of a micro bubble occurrence nozzle extending in a length direction according to a fourth embodiment of the present invention.
  • at least one or more first through holes 24 and second through holes can be arranged in a length direction to smoothly increase generation amount of micro bubbles generated from a micro bubble occurrence nozzle 10.
  • FIG. 7 is a cross-sectional view of a micro bubble occurrence nozzle including a plurality of inner receiving members connected to each other according to a fifth embodiment of the present invention.
  • each of inner receiving members 20 includes coupling portions 22 on an inner surface of one side or both side ends thereof.
  • the inner receiving members 20 are connected to each other by the coupling portions 22' to smoothly increase a generation amount of micro bubbles generated from a micro bubble occurrence nozzle 10.
  • FIG. 8 is a cross-sectional view of a plurality of micro bubble occurrence nozzles connected to each other, in which each of the micro bubble occurrence nozzles discharges micro bubbles according to a sixth embodiment of the present invention.
  • each of inner receiving members 20 includes coupling portions 22' on an inner surface of one side or both side ends thereof.
  • Each of outer bubble occurrence members 30 is fixed to each of the inner receiving members 20 to discharge micro bubbles through each of discharging portions 38.
  • a plurality of micro bubble occurrence nozzles may be provided, and their usage may be difference according to a user convenience.
  • FIG. 9 is a cross-sectional view of a plurality of micro bubble occurrence nozzles connected to each other, in which the plurality of micro bubble occurrence nozzles sequentially discharges micro bubbles according to a seventh embodiment of the present invention.
  • coupling portions 22' of inner tubes of inner receiving members 20 are coupled to discharging portions 38 of outer bubble occurrence members 30 of outer bubble occurrence members 30, respectively. Therefore, mixed liquid can sequentially pass through the micro bubble occurrence nozzles 10 to further finely and uniformly distribute micro bubbles contained in the mixed liquid.
  • the coupling portions 22 disposed at one side or both side ends of the inner tube 22 of the inner receiving members 20 have a screw shape, but another coupling members may be used according to a user convenience.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Public Health (AREA)
  • Pain & Pain Management (AREA)
  • Epidemiology (AREA)
  • Physical Education & Sports Medicine (AREA)
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  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)

Abstract

A micro bubble occurrence nozzle is provided. The micro bubble occurrence nozzle receives mixed liquid, in which gas and liquid are mixed in the outside of the nozzle, to generate micro bubbles. Particularly, the micro bubble occurrence nozzle receives mixed liquid, in which gas and liquid are first mixed in the outside of the nozzle to contain bubbles, at a predetermined pressure to discharge micro bubbles. For this, the micro bubble occurrence nozzle includes: an inner receiving member receiving mixed liquid in which gas and liquid are mixed in the outside at a predetermined pressure to discharge the mixed liquid; and an outer bubble occurrence member receiving the inner receiving member therein, the outer bubble occurrence member receiving the mixed liquid discharged from the inner receiving member to discharge micro bubbles due to collision or rotation of the mixed liquid.

Description

Description MICRO BUBBLE OCCURRENCE NOZZLE
Technical Field
[1] The present invention relates to a micro bubble occurrence nozzle that receives mixed liquid, in which gas and liquid are mixed in the outside of the nozzle, to generate micro bubbles, and more particularly, to a micro bubble occurrence nozzle that receives mixed liquid, in which gas and liquid are first mixed in the outside of the nozzle to contain bubbles, at a predetermined pressure to discharge micro bubbles. Background Art
[2] In general, various methods using bubbles are being provided. In daily life, the bubbles are universally used for maintaining cleanliness or recovering from fatigue. Recently, healthy and more fragrant bubble bath without damaging skin is being favored. Also, the bubbles are used for supplying oxygen to an aquarium for ornamental fishes or a farm for fish and shellfish.
[3] In addition, the bubbles are used as methods for increasing dissolved oxygen that decreases due to increases in water pollution and for sterilizing and purifying water and air.
[4] Although the various methods using the bubbles are used with respect to the daily life and an environment as described above, bubble generation is not easy, and bubble efficiency is low because dimensions of the generated bubbles are large.
[5] Also, in order to purify the water and increase the dissolved oxygen, the bubbles is generally generated using various fountains, waterfalls, and oxygen aerations in closing waters such as lakes or swamps and dams, farms, and combined septic tanks. However, theirs efficiencies are insufficient, and it can expect only small effects. This is done because a bubble diameter injected into and in contact with the water is large, and the bubble rises at once due to their diameter. Therefore, the effects capable of increasing the dissolved oxygen of the water cannot be expected.
[6] Furthermore, when gas such as oxygen (O) or ozone (O ) is injected into and in contact with liquid, since a large-scale bubble having a diameter ranging from about 0.2 mm to about 3 mm is generated, a contact area of the gas and the liquid decreases, and also, a contact time of the gas and the liquid decreases due to the fast rising speed of the gas. As a result, solubility of the gas absorbed into the liquid is very low.
[7] Alternatively, to increase the solubility of the gas absorbed into the liquid, a research in which a contactor has a cylindrical shape, and the liquid within the contactor rotates to increase the contact time somewhat, and a research in which a relatively large amount of the gas is injected using a batch method that requires a much longer contact time with the liquid to improve the efficiency are being developed. However, it is insufficient to be used as the oxygen aerations in actual ponds or swamps.
[8] Also, in case of aerations of existing sanitation facilities or the combined septic tanks, a large-scale aeration tank is required because a diameter of injection gas is large. In case of the oxygen aerations of sea farming, since a diameter of corresponding gas is large, the solubility of the gas absorbed into the liquid is low. That is, it is difficult to increase the dissolved oxygen. As a result, it is difficult to implement high- density cultivation, and a death rate of aquaculture fishes increases due to diseases or oxygen deficit.
[9] In order to solve above-described limitations, various methods have been used, and therefore, micro bubble occurrence devices having various types are developed as one method.
[10] Such a micro bubble occurrence device is disclosed in Korean Registered Patent Application No. 10-0465756, titled "Air Bubble Solution Apparatus".
[11] As described in FIG. 1, the air bubble solution apparatus includes a spiral stream generator 1. The spiral stream generator 1 includes a spiral stream pipe 2, a spiral stream generating wing 3, a gas inlet port 4, a bubble breaking pipe 5 and a plurality of bubble breaking protrusions 6. The spiral stream generating wing 3 has a spiral shape and generates a spiral stream in the same direction within the spiral stream pipe 2. The gas inlet port 4 including a control valve (not shown) is disposed at a front end portion of the spiral stream pipe 2. The bubble breaking pipe 5 having a diameter smaller than that of the spiral stream pipe 2 of the spiral stream generator 1 integratedly extends from one end of the spiral stream pipe 2 of the spiral stream generator 1. The plurality of bubble breaking protrusions 6 is regularly arranged on an inner surface of the bubble breaking pipe 5 in a center direction thereof.
[12] That is, in the conventional air bubble solution apparatus, an outside environment is exerted at a predetermined pressure. Mixed liquid mixing gas with liquid is spiral- streamed by the spiral stream generating wing 3 disposed inside the spiral stream pipe 2. Bubbles contained in the spiral-streamed liquid are broken and fined by the plurality of bubble breaking protrusions 6.
[13] However, for this, the bubble breaking protrusions 6 must be arranged in pairs of three and at spaced 12O0C intervals along a side surface. That is, the bubble breaking protrusions 6 must be disposed in pairs of three stages to four stages per unit length of the bubble breaking pipe 5, e.g., per 10 cm. In case where the bubble breaking protrusions 6 is less than three stages, it is insufficient to finely break the bubbles contained in the liquid spiral-streamed by the spiral stream generating wing 3. On the other hand, in case where the bubble breaking protrusions 6 excesses four stages, it is difficult to obtain a smooth liquid flow due to increase of flow resistance. Thus, it is difficult to satisfactorily break the bobbles, and their construction becomes complicated. In addition, the spiral stream generating wing 3 and the bubble breaking protrusions 6 should be separately assembled, and the liquid is discharged to the outside due to gas injection.
[14] Also, since a foreign substance contained in the liquid is accumulated on the spiral stream generating wing 3 and the bubble breaking protrusions 6 to interrupt the liquid flow, the bubble is not smoothly generated, and a cleaning for removing the foreign substance is not easy.
[15] Furthermore, only a portion of the bubbles collides when the bubbles contained in the liquid collides with the bubble breaking protrusions 6. The remaining portion of the bubbles flows along the bubble breaking protrusions 6 due to the characteristic of the liquid. Thus, it is insufficient to generate micro bubbles, and it is difficult to obtain effects according to the micro bubbles. Disclosure of Invention Technical Problem
[16] An object of the present invention is to provide a micro bubble occurrence nozzle that can be easily assembled due to simple composition, reduce manufacturing costs due to simple construction, obtain micro bubbles, and cannot require auxiliary facilities because it is simply coupled to existing equipment. Technical Solution
[17] According to an aspect of the present invention, there is provided a micro bubble occurrence nozzle including: an inner receiving member receiving mixed liquid in which gas and liquid are mixed in an outside at a predetermined pressure to discharge the mixed liquid; and an outer bubble occurrence member receiving the inner receiving member therein, the outer bubble occurrence member receiving the mixed liquid discharged from the inner receiving member to discharge micro bubbles due to collision or rotation of the mixed liquid.
[18] According to the present invention, the inner receiving member may include at least one or more first through holes having one side and the other side, the one side being opened to receive the mixed liquid and the other side passing through a closed inner tube to discharge the mixed liquid at a high pressure.
[19] According to the present invention, the inner receiving member may include at least one or more second through holes having one side and the other side, the one side being opened to receive the mixed liquid and the other side eccentrically passing through a closed inner tube to discharge the mixed liquid at a high pressure.
[20] According to the present invention, the inner receiving member may include at least one or more first through holes having one side and the other side, the one side being opened to receive the mixed liquid and the other side passing through a closed inner tube to discharge the mixed liquid at a high pressure and at least one or more second through holes eccentrically passing through the inner tube to discharge the mixed liquid at the high pressure. [21] According to the present invention, the outer bubble occurrence member may include: a coupling portion to which the inner receiving member is coupled and fixed; an inner tube receiving the inner receiving member fixed by the coupling portion and including an inside surface, the inner tube receiving the mixed liquid discharged from the inner receiving member; and a discharging portion through which one side of an outer tube is opened to discharge the micro bubbles. [22] According to the present invention, the second through hole eccentrically passing through the inner tube of the inner receiving member may obliquely pass through the inner tube with a predetermined angle. [23] According to the present invention, the inner receiving member may include coupling portions on communicated both sides of the inner tube. [24] According to the present invention, the inner receiving member may include at least one or more inner receiving members arranged in a length direction, and the coupling portions disposed on the inner tube are connected and fixed to each other by a coupling member. [25] According to the present invention, at least one or more micro bubble occurrence nozzles may be connected and fixed to each other to sequentially generate the micro bubbles.
Advantageous Effects
[26] In the micro bubble occurrence nozzle according to the present invention, the inner tube of the inner receiving member can be coupled to the outer bubble occurrence member to provide simple assembly and disassembly. Thus, the assembly thereof and simple change and replacement for cleaning are easy. In addition, a process of manufacturing the micro bubble occurrence nozzle can be simple, and manufacturing costs can be reduced due to reduction of materials and easy of maintenance and repair. Furthermore, the manufacturing costs can be reduced because existing pipe facilities can be used without requiring facility expansion.
[27] Also, the mixed liquid discharged from the first through hole and the second through hole passing through the inner receiving member can be compressed, collide and rotate to easily generate the micro bubbles. In addition, the user can adjust the micro bubble occurrence through various dispositions and arrangements of the through holes. Therefore, the user can easily use the required micro bubbles through the simple assembly. Brief Description of the Drawings
[28] FIG. 1 is a cross-sectional view of a conventional air bubble solution apparatus.
[29] FIG. 2 is a cross-sectional view of a micro bubble occurrence nozzle according to a first embodiment of the present invention. [30] FIG. 3 is a side cross-sectional view of the micro bubble occurrence nozzle according to the first embodiment of the present invention. [31] FIG. 4 is a cross-sectional view of a micro bubble occurrence nozzle in which a second through hole is oblique according to a second embodiment of the present invention. [32] FIG. 5 is a side cross-sectional view of a micro bubble occurrence nozzle including a first through hole and a second through hole according to a third embodiment of the present invention. [33] FIG. 6 is a cross-sectional view of a micro bubble occurrence nozzle extending in a length direction according to a fourth embodiment of the present invention. [34] FIG. 7 is a cross-sectional view of a micro bubble occurrence nozzle including a plurality of inner receiving members connected to each other according to a fifth embodiment of the present invention. [35] FIG. 8 is a cross-sectional view of a plurality of micro bubble occurrence nozzles connected to each other, in which each of the micro bubble occurrence nozzles discharges micro bubbles according to a sixth embodiment of the present invention. [36] FIG. 9 is a cross-sectional view of a plurality of micro bubble occurrence nozzles connected to each other, in which the plurality of micro bubble occurrence nozzles sequentially discharges micro bubbles according to a seventh embodiment of the present invention.
Best Mode for Carrying Out the Invention [37] Hereinafter, a micro bubble occurrence nozzle according to the present invention will be described in detail with reference to the accompanying drawings. [38] FIG. 2 is a cross-sectional view of a micro bubble occurrence nozzle according to a first embodiment of the present invention, and FIG. 3 is a side cross-sectional view of the micro bubble occurrence nozzle according to the first embodiment of the present invention. [39] As illustrated in drawings, the premise of the present invention is that the micro bubble occurrence nozzle can be installed in a state of a universal pipe, and mixed liquid first mixing liquid with gas is exerted at a predetermined pressure. [40] Referring to FIG. 2, a micro bubble occurrence nozzle 10 includes an inner receiving member 20, and an outer bubble occurrence member 30. The inner receiving member
20 includes an inner tube 22, a first through hole 24, and a second through hole 26. The inner receiving member 20 has one side and the other side. The one side is opened to receive mixed liquid at a predetermined pressure, and the other side is closed to provide the inner tube 22. The first through hole 24 passes through the inner tube 22 to discharge the compressed mixed liquid at a high pressure. The second through hole 26 eccentrically passes through the inner tube 22 at a position corresponding to the first through hole 24 to discharge the mixed liquid at the high pressure. The outer bubble occurrence member 30 includes a coupling portion 32, an outer tube 36, and a discharging portion 38. The coupling portion 32 is fixedly coupled to an outer circumference of the inner tube 22 of the inner receiving member 20. The outer tuber 36 receives the inner receiving member 20 fixed to the coupling portion 32 and includes an inside surface 34 that collides with the mixed liquid discharged from the inner receiving member 20 to receive the mixed liquid. The discharging portion 38 opens one side of the outer tube 36 to discharge micro bubbles.
[41] Preferably, the coupling portion 32 is screw-coupled (not shown) to the outer circumference of the inner tube 22 to firmly fix the inner receiving member 20 to the outer bubble occurrence member 30 while the inner receiving member 20 and the outer bubble occurrence member 30 are sealed against each other. However, another coupling methods may be used for a user convenience.
[42] In the micro bubble occurrence nozzle 10, one side of the inner tube 22 of the inner receiving member 20 is coupled to an external pipe (not shown) to receive the mixed liquid into the inner tube 20 at a predetermined pressure. The mixed liquid received into the inner tube 20 is discharged through the first through hole 24 and the second through hole 26 to collide with the inside surface 34 at the high pressure and discharge the micro bubbles. Referring to FIG. 3, the second through hole 26 eccentrically passes through the inner tube 22 to collide with the inside surface 34, and at the same time, rotate along the inside surface 34. As a result, the mixed liquid including the micro bubbles rotates to smoothly generate the micro bubbles. The micro bubbles are uniformly distributed and discharged through the discharging portion 38.
[43] That is, in order to generate the micro bubbles, the mixed liquid passes through the first through hole 24 and the second through hole 26 having small diameters, respectively, at the predetermined pressure to finely compress large bubbles contained in the mixed liquid and discharge the compressed mixed liquid at the high pressure. The mixed liquid discharged at the high pressure collides with the inside surface 34 of the outer tube 36 of the outer bubble occurrence member 30 to finely divide the bubbles yet again. The mixed liquid discharged through the second through hole 26 collides with the inside surface 34, and at the same time, rotates along the inside surface 34 to uniformly distribute the micro bubbles. In addition, the micro bubbles are again divided by mutual collision of the micro bubbles due to rotation of the mixed liquid. [44] FIG. 4 is a cross-sectional view of a micro bubble occurrence nozzle in which a second through hole is oblique according to a second embodiment of the present invention. Referring to FIG. 4, a second through hole 26 disposed in an inner tube 22 of an inner receiving member 20 has a predetermined angle. For example, the second through hole 26 obliquely passes through the inner tube 22 at about 450C to allow mixed liquid including micro bubbles to smoothly rotate along an inside surface 34 of an inner tube 36 of an outer bubble occurrence member 30.
[45] FIG. 5 is a side cross-sectional view of a micro bubble occurrence nozzle including a first through hole and a second through hole according to a third embodiment of the present invention. Referring to FIG. 5, at least one or more first through holes 24 and second through holes 26 which are arranged in an inner tube 22 of an inner receiving member 20 can pass through the inner tube 22 of the inner receiving member 20, to easily increase a generation amount of micro bubbles.
[46] FIG. 6 is a cross-sectional view of a micro bubble occurrence nozzle extending in a length direction according to a fourth embodiment of the present invention. Referring to FIG. 6, at least one or more first through holes 24 and second through holes can be arranged in a length direction to smoothly increase generation amount of micro bubbles generated from a micro bubble occurrence nozzle 10.
[47] FIG. 7 is a cross-sectional view of a micro bubble occurrence nozzle including a plurality of inner receiving members connected to each other according to a fifth embodiment of the present invention. Referring to FIG. 7, each of inner receiving members 20 includes coupling portions 22 on an inner surface of one side or both side ends thereof. The inner receiving members 20 are connected to each other by the coupling portions 22' to smoothly increase a generation amount of micro bubbles generated from a micro bubble occurrence nozzle 10.
[48] FIG. 8 is a cross-sectional view of a plurality of micro bubble occurrence nozzles connected to each other, in which each of the micro bubble occurrence nozzles discharges micro bubbles according to a sixth embodiment of the present invention. Referring to FIG. 8, each of inner receiving members 20 includes coupling portions 22' on an inner surface of one side or both side ends thereof. Each of outer bubble occurrence members 30 is fixed to each of the inner receiving members 20 to discharge micro bubbles through each of discharging portions 38. A plurality of micro bubble occurrence nozzles may be provided, and their usage may be difference according to a user convenience.
[49] FIG. 9 is a cross-sectional view of a plurality of micro bubble occurrence nozzles connected to each other, in which the plurality of micro bubble occurrence nozzles sequentially discharges micro bubbles according to a seventh embodiment of the present invention. Referring to FIG. 9, in micro bubble occurrence nozzles 10, coupling portions 22' of inner tubes of inner receiving members 20 are coupled to discharging portions 38 of outer bubble occurrence members 30 of outer bubble occurrence members 30, respectively. Therefore, mixed liquid can sequentially pass through the micro bubble occurrence nozzles 10 to further finely and uniformly distribute micro bubbles contained in the mixed liquid.
[50] Preferably, the coupling portions 22 disposed at one side or both side ends of the inner tube 22 of the inner receiving members 20 have a screw shape, but another coupling members may be used according to a user convenience.
[51] As described above, the embodiments for implementing the micro bubble occurrence nozzle according to the present invention have been described as one example, but it is not limited to the above embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention. Thus, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

Claims
[1] A micro bubble occurrence nozzle comprising: an inner receiving member (20) receiving mixed liquid in which gas and liquid are mixed in an outside at a predetermined pressure to discharge the mixed liquid; and an outer bubble occurrence member (30) receiving the inner receiving member (20) therein, the outer bubble occurrence member (30) receiving the mixed liquid discharged from the inner receiving member (20) to discharge micro bubbles due to collision or rotation of the mixed liquid.
[2] The micro bubble occurrence nozzle of claim 1, wherein the inner receiving member (20) comprises at least one or more first through holes (24) having one side and the other side, the one side being opened to receive the mixed liquid and the other side passing through a closed inner tube (22) to discharge the mixed liquid at a high pressure.
[3] The micro bubble occurrence nozzle of claim 1, wherein the inner receiving member (20) comprises at least one or more second through holes (26) having one side and the other side, the one side being opened to receive the mixed liquid and the other side eccentrically passing through a closed inner tube (22) to discharge the mixed liquid at a high pressure.
[4] The micro bubble occurrence nozzle of claim 1, wherein the inner receiving member (20) comprises at least one or more first through holes (24) having one side and the other side, the one side being opened to receive the mixed liquid and the other side passing through a closed inner tube (22) to discharge the mixed liquid at a high pressure and at least one or more second through holes (26) eccentrically passing through the inner tube (22) to discharge the mixed liquid at the high pressure.
[5] The micro bubble occurrence nozzle of claim 1, wherein the outer bubble occurrence member (30) comprises: a coupling portion (32) to which the inner receiving member (20) is coupled and fixed; an inner tube (36) receiving the inner receiving member (20) fixed by the coupling portion (32) and including an inside surface (34), the inner tube (36) receiving the mixed liquid discharged from the inner receiving member (20); and a discharging portion (38) through which one side of an outer tube (36) is opened to discharge the micro bubbles.
[6] The micro bubble occurrence nozzle of claim 3, wherein the second through hole
(26) eccentrically passing through the inner tube (22) of the inner receiving member (20) obliquely passes through the inner tube (22) with a predetermined angle.
[7] The micro bubble occurrence nozzle of any one of claims 1 through 4, wherein the inner receiving member (20) comprises coupling portions (22') on communicated both sides of the inner tube (22).
[8] The micro bubble occurrence nozzle of claim 7, wherein the inner receiving member (20) comprises at least one or more inner receiving members (20) arranged in a length direction, and the coupling portions (22') disposed on the inner tube (22) are connected and fixed to each other by a coupling member (40).
[9] The micro bubble occurrence nozzle of claim 1, wherein at least one or more micro bubble occurrence nozzles (10) are connected and fixed to each other to sequentially generate the micro bubbles.
PCT/KR2007/002385 2007-05-15 2007-05-15 Micro bubble occurrence nozzle WO2008140139A1 (en)

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Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2007/002385 WO2008140139A1 (en) 2007-05-15 2007-05-15 Micro bubble occurrence nozzle

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105013635A (en) * 2014-04-18 2015-11-04 海尔集团公司 Spray nozzle
CN105735997A (en) * 2016-04-08 2016-07-06 上海交通大学 Loop impulse water jet ore crushing device and ore crushing method thereof
JP2018122234A (en) * 2017-01-31 2018-08-09 株式会社金星 Fine bubble generating device
EP3442694A4 (en) * 2016-04-12 2019-12-18 Arisdyne Systems, Inc. Method and device for cavitationally treating a fluid

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4582255A (en) * 1985-01-08 1986-04-15 Won Vann Y Self-propelled, floating, rotary, liquid atomizer
US4884746A (en) * 1987-02-05 1989-12-05 Radial Turbine International A/S Fuel nozzle and improved system and method for injecting fuel into a gas turbine engine
US5547129A (en) * 1994-09-30 1996-08-20 Ppg Industries, Inc. Low profile spray assembly
US5553785A (en) * 1995-01-10 1996-09-10 Spraying Systems Co. Enhanced efficiency apparatus for atomizing and spraying liquid
US5845846A (en) * 1969-12-17 1998-12-08 Fujisaki Electric Co., Ltd. Spraying nozzle and method for ejecting liquid as fine particles
JP2004237282A (en) * 2003-01-16 2004-08-26 Kyoritsu Gokin Co Ltd Double fluid nozzle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5845846A (en) * 1969-12-17 1998-12-08 Fujisaki Electric Co., Ltd. Spraying nozzle and method for ejecting liquid as fine particles
US4582255A (en) * 1985-01-08 1986-04-15 Won Vann Y Self-propelled, floating, rotary, liquid atomizer
US4884746A (en) * 1987-02-05 1989-12-05 Radial Turbine International A/S Fuel nozzle and improved system and method for injecting fuel into a gas turbine engine
US5547129A (en) * 1994-09-30 1996-08-20 Ppg Industries, Inc. Low profile spray assembly
US5553785A (en) * 1995-01-10 1996-09-10 Spraying Systems Co. Enhanced efficiency apparatus for atomizing and spraying liquid
JP2004237282A (en) * 2003-01-16 2004-08-26 Kyoritsu Gokin Co Ltd Double fluid nozzle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105013635A (en) * 2014-04-18 2015-11-04 海尔集团公司 Spray nozzle
CN105735997A (en) * 2016-04-08 2016-07-06 上海交通大学 Loop impulse water jet ore crushing device and ore crushing method thereof
EP3442694A4 (en) * 2016-04-12 2019-12-18 Arisdyne Systems, Inc. Method and device for cavitationally treating a fluid
JP2018122234A (en) * 2017-01-31 2018-08-09 株式会社金星 Fine bubble generating device

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