WO2002006167A1 - Systeme de buse - Google Patents

Systeme de buse Download PDF

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Publication number
WO2002006167A1
WO2002006167A1 PCT/AU2001/000873 AU0100873W WO0206167A1 WO 2002006167 A1 WO2002006167 A1 WO 2002006167A1 AU 0100873 W AU0100873 W AU 0100873W WO 0206167 A1 WO0206167 A1 WO 0206167A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
nozzle
inner tube
flow
outer tube
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/AU2001/000873
Other languages
English (en)
Inventor
David Kevin Cordova
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WILLIAMS THOMAS G
Original Assignee
WILLIAMS THOMAS G
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 WILLIAMS THOMAS G filed Critical WILLIAMS THOMAS G
Priority to AU2001272219A priority Critical patent/AU2001272219A1/en
Publication of WO2002006167A1 publication Critical patent/WO2002006167A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
    • A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
    • 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
    • B01F23/23231—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 being at least partially immersed in the liquid, e.g. in a closed circuit
    • 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
    • B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
    • B01F23/2376—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media characterised by the gas being introduced
    • B01F23/23761—Aerating, i.e. introducing oxygen containing gas in liquids
    • 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
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
    • B01F23/454—Mixing liquids with liquids; Emulsifying using flow mixing by injecting a mixture of liquid and gas
    • 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
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B01F25/21—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers
    • B01F25/211—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers the injectors being surrounded by guiding tubes
    • 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

Definitions

  • the present invention relates to the aeration of liquids and, in particular, to a nozzle arrangement for super aeration of water.
  • the problem which arises is that the water within the ponds becomes stratified due to different densities of the water.
  • the different density may arise as a result of temperature differences which causes temperature separation layers in the pond, and/or differences in salinity due to those differences and/or evaporation of water from the upper layers, for example.
  • the result is that the water within the pool becomes stratified, with higher salinity and reduced oxygen, particularly in the lower layers. This leads to inactivity and a lack of movement in the pond water.
  • the animals in the pond become less energetic and their food conversion ratios drop, thereby resulting in the animals being less productive for use as saleable food.
  • a nozzle arrangement for super aeration of liquids comprising an outer tube having a longitudinal axis, a liquid supply pipe having an outlet portion substantially aligned with said longitudinal axis, an inner tube substantially co-axial with said outer tube and passing through said outlet portion, and a gas supply nozzle supplying gas under pressure to said inner tube, wherein the gas supplied to said inner tube is entrained in liquid therein to cause flow in the direction of said nozzle, the flow from said inner tube is entrained with liquid supplied by said liquid supply pipe, and the flow from said liquid supply pipe outlet is entrained with liquid in said outer tube to cause flow therein.
  • the present invention is used to super aerate aquaculture pond water, it preferably equalises the oxygen and/or salinity levels in the pond water.
  • Fig. 1 is a longitudinal cross-sectional view through the nozzle arrangement of the preferred embodiment
  • Fig. 2 is a cross-sectional view taken along the line II-II of Fig. 1, and
  • Fig. 3 is a schematic side elevational view of a pond with the nozzle arrangement of
  • the nozzle arrangement of the preferred embodiment takes the form of an outer tube 2 within which is coaxially located an inner tube 3.
  • the tubes 2, 3 can be of any cross-sectional shape, and are preferably circular in cross-section.
  • a liquid supply pipe 4 enters the outer tube 2 and has an elbow 5 leading to an outlet portion 6.
  • the inner tube 3 is contained within, and is preferably coaxial with, the outlet portion 6.
  • An air supply pipe 8 passes through the outer tube 2, the outlet portion 6, and the inner tube 3 and is provided with an elbow 9 which forms a nozzle 10.
  • the nozzle 10 is covered with a micronising screen 11 which contains a large number of very small openings which together with the air supplied under pressure by the air supply pipe 8, results in a stream of a large number of very tiny bubbles emanating from the nozzle 10.
  • a cartridge 13 Located immediately downstream of the nozzle 10 and within the inner tube 3 is a cartridge 13 filled with a number of small balls 14 fabricated from metal silver.
  • the cartridge 13 has a pair of electrodes 15, 16 to which alternating polarity DC potential or voltage is supplied.
  • the DC voltage is in the range from 15V to 24V.
  • liquid is pumped or otherwise forced through the liquid supply pipe 4 where it passes around the elbow 5 and out the outlet portion 6.
  • the stream of small bubbles emanating from the nozzle 10 entrains water within the inner tube 3 which is then forced through the cartridge 13 which effectively constitutes a kill zone for a large number of potential pathogens including viruses, bacteria and fungus.
  • the effectively sterilised stream of tiny bubbles and entrained liquid then passes out of the inner tube 3 and is entrained within the flow of liquid through the outlet portion 6.
  • This flow in turn entrains liquid within the outer tube 2 and therefore forms part of a larger flow flowing from left to right as seen in Fig. 1 through the outer tube 2.
  • the tiny bubbles rise slowly towards the surface they also dissolve in the water thereby super aerating the water.
  • a pair of supports 17 and 18 are provided in order to maintain the outlet portion 6 and inner tube 3 substantially coaxial within the outer tube 2.
  • the supports take the form of strips of thin plastic material such as Mylar (Registered Trade Mark) which can nestle together to create a cruiciform arrangement as illustrated in Fig. 2.
  • Fig. 3 illustrates in schematic form the overall arrangement of the pond where a compressor 21 supplies the air supply pipe 8.
  • a pump 22 supplies the liquid supply pipe 4 with either water drawn from the pond 20 through an inlet 23 or water from another source provided through an alternate inlet 24.
  • the liquid supplied through the alternate inlet 24 can be treated effluent from intensively raised pigs, cattle or other such animals.
  • the inner tube has a diameter of approximately 1 inch
  • the outlet portion 6 and liquid supply pipe 4 have a diameter of approximately 3 inches
  • the outer tube 2 has a diameter of approximately 9 inches or in excess thereof.
  • the air supply pipe 8 preferably has a pressure in the range of 15-100 psi and the flow rate of liquid through the liquid supply pipe is preferably in the range 20-300 gallons per minute.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

L'invention porte sur un procédé et un appareil de suraération de liquides tels que celui de bassins d'aquaculture. On utilise à cet effet un tube (2) extérieur entourant un tube (3) intérieur coaxial. Les bulles d'air sortant d'une buse (9) sont entraînées dans le liquide du tube (3) intérieur où elles forment un flux qui à son tour est entraîné dans un flux de liquide additionnel alimentant le tube (2) extérieur via un tube (4) d'apport. On utilise de préférence une cartouche (13) de billes d'argent (14) placée dans le tube (3) intérieur en aval de la buse (10) d'alimentation en air pour éliminer les agents pathogènes.
PCT/AU2001/000873 2000-07-18 2001-07-18 Systeme de buse Ceased WO2002006167A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001272219A AU2001272219A1 (en) 2000-07-18 2001-07-18 Nozzle arrangement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPQ8856A AUPQ885600A0 (en) 2000-07-18 2000-07-18 A nozzle arrangement
AUPQ8856 2000-07-18

Publications (1)

Publication Number Publication Date
WO2002006167A1 true WO2002006167A1 (fr) 2002-01-24

Family

ID=3822919

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2001/000873 Ceased WO2002006167A1 (fr) 2000-07-18 2001-07-18 Systeme de buse

Country Status (2)

Country Link
AU (1) AUPQ885600A0 (fr)
WO (1) WO2002006167A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1586369A1 (fr) * 2004-04-13 2005-10-19 Paul Scherrer Institut Appareillage pour générer des bulles fines de gaz dans un liquide
JP2013184128A (ja) * 2012-03-08 2013-09-19 Panasonic Corp 気体溶解装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2544430A1 (de) * 1975-10-04 1977-04-14 Helmut Dipl Phys Gehm Vorrichtung zur selbsttaetigen, kuenstlichen belueftung von fliessgewaessern
SU1333653A1 (ru) * 1986-04-22 1987-08-30 Институт технической теплофизики АН УССР Устройство дл аэрации водоемов
EP0465043B1 (fr) * 1990-06-18 1994-08-24 Inax Corporation Ejecteur et son usage dans un procédé de traitement aérobie de l'eau
DE4312971A1 (de) * 1993-04-21 1994-10-27 Envicon Klaertech Verwalt Verfahren und Vorrichtung zur Belüftung von Gewässern
JPH10180270A (ja) * 1996-12-24 1998-07-07 Takashi Yamamoto 曝気装置
JPH10230150A (ja) * 1997-02-17 1998-09-02 Nittetsu Mining Co Ltd エアレータ

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2544430A1 (de) * 1975-10-04 1977-04-14 Helmut Dipl Phys Gehm Vorrichtung zur selbsttaetigen, kuenstlichen belueftung von fliessgewaessern
SU1333653A1 (ru) * 1986-04-22 1987-08-30 Институт технической теплофизики АН УССР Устройство дл аэрации водоемов
EP0465043B1 (fr) * 1990-06-18 1994-08-24 Inax Corporation Ejecteur et son usage dans un procédé de traitement aérobie de l'eau
DE4312971A1 (de) * 1993-04-21 1994-10-27 Envicon Klaertech Verwalt Verfahren und Vorrichtung zur Belüftung von Gewässern
JPH10180270A (ja) * 1996-12-24 1998-07-07 Takashi Yamamoto 曝気装置
JPH10230150A (ja) * 1997-02-17 1998-09-02 Nittetsu Mining Co Ltd エアレータ

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Derwent World Patents Index; AN 1998-431908/37 *
DATABASE WPI Derwent World Patents Index; Class D15, AN 1977-27359Y/16 *
DATABASE WPI Derwent World Patents Index; Class D15, AN 1988-103719/15 *
DATABASE WPI Derwent World Patents Index; Class D15, AN 1994-333846/42 *
DATABASE WPI Derwent World Patents Index; Class D15, AN 1998-524516/45 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1586369A1 (fr) * 2004-04-13 2005-10-19 Paul Scherrer Institut Appareillage pour générer des bulles fines de gaz dans un liquide
WO2005099888A1 (fr) * 2004-04-13 2005-10-27 Paul Scherrer Institut Appareil permettant de produire de fines bulles de gaz dans un liquide
JP2013184128A (ja) * 2012-03-08 2013-09-19 Panasonic Corp 気体溶解装置

Also Published As

Publication number Publication date
AUPQ885600A0 (en) 2000-08-10

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